/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Pierre Phaneuf * Daniel Glazman * Ms2ger * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #include "nsCRT.h" #include "nsUnicharUtils.h" #include "nsHTMLEditor.h" #include "nsHTMLEditRules.h" #include "nsTextEditUtils.h" #include "nsHTMLEditUtils.h" #include "nsHTMLEditorEventListener.h" #include "TypeInState.h" #include "nsHTMLURIRefObject.h" #include "nsIDOMText.h" #include "nsIDOMNodeList.h" #include "nsIDOMDocument.h" #include "nsIDOMAttr.h" #include "nsIDocument.h" #include "nsIDOMEventTarget.h" #include "nsIDOMKeyEvent.h" #include "nsISelectionPrivate.h" #include "nsIDOMHTMLAnchorElement.h" #include "nsISelectionController.h" #include "nsIDOMHTMLDocument.h" #include "nsILinkHandler.h" #include "mozilla/css/Loader.h" #include "nsCSSStyleSheet.h" #include "nsIDOMStyleSheet.h" #include "nsIEnumerator.h" #include "nsIContent.h" #include "nsIContentIterator.h" #include "nsIDOMRange.h" #include "nsISupportsArray.h" #include "nsContentUtils.h" #include "nsIDocumentEncoder.h" #include "nsIDOMDocumentFragment.h" #include "nsIPresShell.h" #include "nsPresContext.h" #include "SetDocTitleTxn.h" #include "nsFocusManager.h" #include "nsPIDOMWindow.h" // netwerk #include "nsIURI.h" #include "nsNetUtil.h" // Transactionas #include "nsStyleSheetTxns.h" // Misc #include "TextEditorTest.h" #include "nsEditorUtils.h" #include "nsWSRunObject.h" #include "nsGkAtoms.h" #include "nsIWidget.h" #include "nsIFrame.h" #include "nsIParserService.h" #include "mozilla/dom/Element.h" using namespace mozilla; using namespace mozilla::widget; // Some utilities to handle annoying overloading of "A" tag for link and named anchor static char hrefText[] = "href"; static char anchorTxt[] = "anchor"; static char namedanchorText[] = "namedanchor"; #define IsLinkTag(s) (s.EqualsIgnoreCase(hrefText)) #define IsNamedAnchorTag(s) (s.EqualsIgnoreCase(anchorTxt) || s.EqualsIgnoreCase(namedanchorText)) nsHTMLEditor::nsHTMLEditor() : nsPlaintextEditor() , mCRInParagraphCreatesParagraph(false) , mSelectedCellIndex(0) , mIsObjectResizingEnabled(true) , mIsResizing(false) , mIsAbsolutelyPositioningEnabled(true) , mResizedObjectIsAbsolutelyPositioned(false) , mGrabberClicked(false) , mIsMoving(false) , mSnapToGridEnabled(false) , mIsInlineTableEditingEnabled(true) , mInfoXIncrement(20) , mInfoYIncrement(20) , mGridSize(0) { } nsHTMLEditor::~nsHTMLEditor() { // remove the rules as an action listener. Else we get a bad // ownership loop later on. it's ok if the rules aren't a listener; // we ignore the error. nsCOMPtr mListener = do_QueryInterface(mRules); RemoveEditActionListener(mListener); //the autopointers will clear themselves up. //but we need to also remove the listeners or we have a leak nsCOMPtrselection; nsresult result = GetSelection(getter_AddRefs(selection)); // if we don't get the selection, just skip this if (NS_SUCCEEDED(result) && selection) { nsCOMPtr selPriv(do_QueryInterface(selection)); nsCOMPtrlistener; listener = do_QueryInterface(mTypeInState); if (listener) { selPriv->RemoveSelectionListener(listener); } listener = do_QueryInterface(mSelectionListenerP); if (listener) { selPriv->RemoveSelectionListener(listener); } } mTypeInState = nsnull; mSelectionListenerP = nsnull; // free any default style propItems RemoveAllDefaultProperties(); if (mLinkHandler && mDocWeak) { nsCOMPtr ps = GetPresShell(); if (ps && ps->GetPresContext()) { ps->GetPresContext()->SetLinkHandler(mLinkHandler); } } RemoveEventListeners(); } void nsHTMLEditor::HideAnonymousEditingUIs() { if (mAbsolutelyPositionedObject) HideGrabber(); if (mInlineEditedCell) HideInlineTableEditingUI(); if (mResizedObject) HideResizers(); } NS_IMPL_CYCLE_COLLECTION_CLASS(nsHTMLEditor) NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsHTMLEditor, nsPlaintextEditor) NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mTypeInState) NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mTextServices) tmp->HideAnonymousEditingUIs(); NS_IMPL_CYCLE_COLLECTION_UNLINK_END NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsHTMLEditor, nsPlaintextEditor) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mTypeInState) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mTextServices) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mTopLeftHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mTopHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mTopRightHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mLeftHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mRightHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mBottomLeftHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mBottomHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mBottomRightHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mActivatedHandle) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mResizingShadow) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mResizingInfo) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mResizedObject) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mMouseMotionListenerP) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mSelectionListenerP) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mResizeEventListenerP) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(objectResizeEventListeners) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mAbsolutelyPositionedObject) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mGrabber) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mPositioningShadow) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mInlineEditedCell) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mAddColumnBeforeButton) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mRemoveColumnButton) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mAddColumnAfterButton) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mAddRowBeforeButton) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mRemoveRowButton) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mAddRowAfterButton) NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END NS_IMPL_ADDREF_INHERITED(nsHTMLEditor, nsEditor) NS_IMPL_RELEASE_INHERITED(nsHTMLEditor, nsEditor) NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsHTMLEditor) NS_INTERFACE_MAP_ENTRY(nsIHTMLEditor) NS_INTERFACE_MAP_ENTRY(nsIHTMLObjectResizer) NS_INTERFACE_MAP_ENTRY(nsIHTMLAbsPosEditor) NS_INTERFACE_MAP_ENTRY(nsIHTMLInlineTableEditor) NS_INTERFACE_MAP_ENTRY(nsITableEditor) NS_INTERFACE_MAP_ENTRY(nsIEditorStyleSheets) NS_INTERFACE_MAP_ENTRY(nsICSSLoaderObserver) NS_INTERFACE_MAP_ENTRY(nsIMutationObserver) NS_INTERFACE_MAP_END_INHERITING(nsPlaintextEditor) NS_IMETHODIMP nsHTMLEditor::Init(nsIDOMDocument *aDoc, nsIContent *aRoot, nsISelectionController *aSelCon, PRUint32 aFlags) { NS_PRECONDITION(aDoc && !aSelCon, "bad arg"); NS_ENSURE_TRUE(aDoc, NS_ERROR_NULL_POINTER); nsresult result = NS_OK, rulesRes = NS_OK; if (1) { // block to scope nsAutoEditInitRulesTrigger nsAutoEditInitRulesTrigger rulesTrigger(static_cast(this), rulesRes); // Init the plaintext editor result = nsPlaintextEditor::Init(aDoc, aRoot, nsnull, aFlags); if (NS_FAILED(result)) { return result; } // Init mutation observer nsCOMPtr document = do_QueryInterface(aDoc); document->AddMutationObserverUnlessExists(this); // disable Composer-only features if (IsMailEditor()) { SetAbsolutePositioningEnabled(false); SetSnapToGridEnabled(false); } // Init the HTML-CSS utils mHTMLCSSUtils = new nsHTMLCSSUtils(this); // disable links nsCOMPtr presShell = GetPresShell(); NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE); nsPresContext *context = presShell->GetPresContext(); NS_ENSURE_TRUE(context, NS_ERROR_NULL_POINTER); if (!IsPlaintextEditor() && !IsInteractionAllowed()) { mLinkHandler = context->GetLinkHandler(); context->SetLinkHandler(nsnull); } // init the type-in state mTypeInState = new TypeInState(); // init the selection listener for image resizing mSelectionListenerP = new ResizerSelectionListener(this); if (!IsInteractionAllowed()) { // ignore any errors from this in case the file is missing AddOverrideStyleSheet(NS_LITERAL_STRING("resource://gre/res/EditorOverride.css")); } nsCOMPtrselection; result = GetSelection(getter_AddRefs(selection)); if (NS_FAILED(result)) { return result; } if (selection) { nsCOMPtr selPriv(do_QueryInterface(selection)); nsCOMPtrlistener; listener = do_QueryInterface(mTypeInState); if (listener) { selPriv->AddSelectionListener(listener); } listener = do_QueryInterface(mSelectionListenerP); if (listener) { selPriv->AddSelectionListener(listener); } } } NS_ENSURE_SUCCESS(rulesRes, rulesRes); return result; } NS_IMETHODIMP nsHTMLEditor::PreDestroy(bool aDestroyingFrames) { if (mDidPreDestroy) { return NS_OK; } nsCOMPtr document = do_QueryReferent(mDocWeak); if (document) { document->RemoveMutationObserver(this); } while (mStyleSheetURLs.Length()) { RemoveOverrideStyleSheet(mStyleSheetURLs[0]); } // Clean up after our anonymous content -- we don't want these nodes to // stay around (which they would, since the frames have an owning reference). HideAnonymousEditingUIs(); return nsPlaintextEditor::PreDestroy(aDestroyingFrames); } NS_IMETHODIMP nsHTMLEditor::GetRootElement(nsIDOMElement **aRootElement) { NS_ENSURE_ARG_POINTER(aRootElement); if (mRootElement) { return nsEditor::GetRootElement(aRootElement); } *aRootElement = nsnull; // Use the HTML documents body element as the editor root if we didn't // get a root element during initialization. nsCOMPtr rootElement; nsCOMPtr bodyElement; nsresult rv = GetBodyElement(getter_AddRefs(bodyElement)); NS_ENSURE_SUCCESS(rv, rv); if (bodyElement) { rootElement = bodyElement; } else { // If there is no HTML body element, // we should use the document root element instead. nsCOMPtr doc = do_QueryReferent(mDocWeak); NS_ENSURE_TRUE(doc, NS_ERROR_NOT_INITIALIZED); rv = doc->GetDocumentElement(getter_AddRefs(rootElement)); NS_ENSURE_SUCCESS(rv, rv); // Document can have no elements if (!rootElement) { return NS_ERROR_NOT_AVAILABLE; } } mRootElement = do_QueryInterface(rootElement); rootElement.forget(aRootElement); return NS_OK; } already_AddRefed nsHTMLEditor::FindSelectionRoot(nsINode *aNode) { NS_PRECONDITION(aNode->IsNodeOfType(nsINode::eDOCUMENT) || aNode->IsNodeOfType(nsINode::eCONTENT), "aNode must be content or document node"); nsCOMPtr content = do_QueryInterface(aNode); nsCOMPtr doc = aNode->GetCurrentDoc(); if (!doc) { return nsnull; } if (doc->HasFlag(NODE_IS_EDITABLE) || !content) { content = doc->GetRootElement(); return content.forget(); } // XXX If we have readonly flag, shouldn't return the element which has // contenteditable="true"? However, such case isn't there without chrome // permission script. if (IsReadonly()) { // We still want to allow selection in a readonly editor. content = do_QueryInterface(GetRoot()); return content.forget(); } if (!content->HasFlag(NODE_IS_EDITABLE)) { // If the content is in read-write state but is not editable itself, // return it as the selection root. if (content->IsElement() && content->AsElement()->State().HasState(NS_EVENT_STATE_MOZ_READWRITE)) { return content.forget(); } return nsnull; } // For non-readonly editors we want to find the root of the editable subtree // containing aContent. content = content->GetEditingHost(); return content.forget(); } /* virtual */ void nsHTMLEditor::CreateEventListeners() { // Don't create the handler twice if (!mEventListener) { mEventListener = new nsHTMLEditorEventListener(); } } nsresult nsHTMLEditor::InstallEventListeners() { NS_ENSURE_TRUE(mDocWeak && mEventListener, NS_ERROR_NOT_INITIALIZED); // NOTE: nsHTMLEditor doesn't need to initialize mEventTarget here because // the target must be document node and it must be referenced as weak pointer. nsHTMLEditorEventListener* listener = reinterpret_cast(mEventListener.get()); return listener->Connect(this); } void nsHTMLEditor::RemoveEventListeners() { if (!mDocWeak) { return; } nsCOMPtr target = GetDOMEventTarget(); if (target) { // Both mMouseMotionListenerP and mResizeEventListenerP can be // registerd with other targets than the DOM event receiver that // we can reach from here. But nonetheless, unregister the event // listeners with the DOM event reveiver (if it's registerd with // other targets, it'll get unregisterd once the target goes // away). if (mMouseMotionListenerP) { // mMouseMotionListenerP might be registerd either as bubbling or // capturing, unregister by both. target->RemoveEventListener(NS_LITERAL_STRING("mousemove"), mMouseMotionListenerP, false); target->RemoveEventListener(NS_LITERAL_STRING("mousemove"), mMouseMotionListenerP, true); } if (mResizeEventListenerP) { target->RemoveEventListener(NS_LITERAL_STRING("resize"), mResizeEventListenerP, false); } } mMouseMotionListenerP = nsnull; mResizeEventListenerP = nsnull; nsPlaintextEditor::RemoveEventListeners(); } NS_IMETHODIMP nsHTMLEditor::SetFlags(PRUint32 aFlags) { nsresult rv = nsPlaintextEditor::SetFlags(aFlags); NS_ENSURE_SUCCESS(rv, rv); // Sets mCSSAware to correspond to aFlags. This toggles whether CSS is // used to style elements in the editor. Note that the editor is only CSS // aware by default in Composer and in the mail editor. mCSSAware = !NoCSS() && !IsMailEditor(); return NS_OK; } NS_IMETHODIMP nsHTMLEditor::InitRules() { // instantiate the rules for the html editor mRules = new nsHTMLEditRules(); return mRules->Init(static_cast(this)); } NS_IMETHODIMP nsHTMLEditor::BeginningOfDocument() { if (!mDocWeak) { return NS_ERROR_NOT_INITIALIZED; } // get the selection nsCOMPtr selection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NOT_INITIALIZED); // Get the root element. nsCOMPtr rootElement = do_QueryInterface(GetRoot()); if (!rootElement) { NS_WARNING("GetRoot() returned a null pointer (mRootElement is null)"); return NS_OK; } // find first editable thingy bool done = false; nsCOMPtr curNode(rootElement), selNode; PRInt32 curOffset = 0, selOffset; while (!done) { nsWSRunObject wsObj(this, curNode, curOffset); nsCOMPtr visNode; PRInt32 visOffset=0; PRInt16 visType=0; wsObj.NextVisibleNode(curNode, curOffset, address_of(visNode), &visOffset, &visType); if ((visType==nsWSRunObject::eNormalWS) || (visType==nsWSRunObject::eText)) { selNode = visNode; selOffset = visOffset; done = true; } else if ((visType==nsWSRunObject::eBreak) || (visType==nsWSRunObject::eSpecial)) { res = GetNodeLocation(visNode, address_of(selNode), &selOffset); NS_ENSURE_SUCCESS(res, res); done = true; } else if (visType==nsWSRunObject::eOtherBlock) { // By definition of nsWSRunObject, a block element terminates // a whitespace run. That is, although we are calling a method // that is named "NextVisibleNode", the node returned // might not be visible/editable! // If the given block does not contain any visible/editable items, // we want to skip it and continue our search. if (!IsContainer(visNode)) { // However, we were given a block that is not a container. // Since the block can not contain anything that's visible, // such a block only makes sense if it is visible by itself, // like a
// We want to place the caret in front of that block. res = GetNodeLocation(visNode, address_of(selNode), &selOffset); NS_ENSURE_SUCCESS(res, res); done = true; } else { bool isEmptyBlock; if (NS_SUCCEEDED(IsEmptyNode(visNode, &isEmptyBlock)) && isEmptyBlock) { // skip the empty block res = GetNodeLocation(visNode, address_of(curNode), &curOffset); NS_ENSURE_SUCCESS(res, res); ++curOffset; } else { curNode = visNode; curOffset = 0; } // keep looping } } else { // else we found nothing useful selNode = curNode; selOffset = curOffset; done = true; } } return selection->Collapse(selNode, selOffset); } nsresult nsHTMLEditor::HandleKeyPressEvent(nsIDOMKeyEvent* aKeyEvent) { // NOTE: When you change this method, you should also change: // * editor/libeditor/html/tests/test_htmleditor_keyevent_handling.html if (IsReadonly() || IsDisabled()) { // When we're not editable, the events are handled on nsEditor, so, we can // bypass nsPlaintextEditor. return nsEditor::HandleKeyPressEvent(aKeyEvent); } nsKeyEvent* nativeKeyEvent = GetNativeKeyEvent(aKeyEvent); NS_ENSURE_TRUE(nativeKeyEvent, NS_ERROR_UNEXPECTED); NS_ASSERTION(nativeKeyEvent->message == NS_KEY_PRESS, "HandleKeyPressEvent gets non-keypress event"); switch (nativeKeyEvent->keyCode) { case nsIDOMKeyEvent::DOM_VK_META: case nsIDOMKeyEvent::DOM_VK_SHIFT: case nsIDOMKeyEvent::DOM_VK_CONTROL: case nsIDOMKeyEvent::DOM_VK_ALT: case nsIDOMKeyEvent::DOM_VK_BACK_SPACE: case nsIDOMKeyEvent::DOM_VK_DELETE: // These keys are handled on nsEditor, so, we can bypass // nsPlaintextEditor. return nsEditor::HandleKeyPressEvent(aKeyEvent); case nsIDOMKeyEvent::DOM_VK_TAB: { if (IsPlaintextEditor()) { // If this works as plain text editor, e.g., mail editor for plain // text, should be handled on nsPlaintextEditor. return nsPlaintextEditor::HandleKeyPressEvent(aKeyEvent); } if (IsTabbable()) { return NS_OK; // let it be used for focus switching } if (nativeKeyEvent->IsControl() || nativeKeyEvent->IsAlt() || nativeKeyEvent->IsMeta()) { return NS_OK; } nsCOMPtr selection; nsresult rv = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(rv, rv); PRInt32 offset; nsCOMPtr node, blockParent; rv = GetStartNodeAndOffset(selection, getter_AddRefs(node), &offset); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_TRUE(node, NS_ERROR_FAILURE); bool isBlock = false; NodeIsBlock(node, &isBlock); if (isBlock) { blockParent = node; } else { blockParent = GetBlockNodeParent(node); } if (!blockParent) { break; } bool handled = false; if (nsHTMLEditUtils::IsTableElement(blockParent)) { rv = TabInTable(nativeKeyEvent->IsShift(), &handled); if (handled) { ScrollSelectionIntoView(false); } } else if (nsHTMLEditUtils::IsListItem(blockParent)) { rv = Indent(nativeKeyEvent->IsShift() ? NS_LITERAL_STRING("outdent") : NS_LITERAL_STRING("indent")); handled = true; } NS_ENSURE_SUCCESS(rv, rv); if (handled) { return aKeyEvent->PreventDefault(); // consumed } if (nativeKeyEvent->IsShift()) { return NS_OK; // don't type text for shift tabs } aKeyEvent->PreventDefault(); return TypedText(NS_LITERAL_STRING("\t"), eTypedText); } case nsIDOMKeyEvent::DOM_VK_RETURN: case nsIDOMKeyEvent::DOM_VK_ENTER: if (nativeKeyEvent->IsControl() || nativeKeyEvent->IsAlt() || nativeKeyEvent->IsMeta()) { return NS_OK; } aKeyEvent->PreventDefault(); // consumed if (nativeKeyEvent->IsShift() && !IsPlaintextEditor()) { // only inserts a br node return TypedText(EmptyString(), eTypedBR); } // uses rules to figure out what to insert return TypedText(EmptyString(), eTypedBreak); } // NOTE: On some keyboard layout, some characters are inputted with Control // key or Alt key, but at that time, widget sets FALSE to these keys. if (nativeKeyEvent->charCode == 0 || nativeKeyEvent->IsControl() || nativeKeyEvent->IsAlt() || nativeKeyEvent->IsMeta()) { // we don't PreventDefault() here or keybindings like control-x won't work return NS_OK; } aKeyEvent->PreventDefault(); nsAutoString str(nativeKeyEvent->charCode); return TypedText(str, eTypedText); } /** * Returns true if the id represents an element of block type. * Can be used to determine if a new paragraph should be started. */ nsresult nsHTMLEditor::NodeIsBlockStatic(nsIDOMNode *aNode, bool *aIsBlock) { if (!aNode || !aIsBlock) { return NS_ERROR_NULL_POINTER; } *aIsBlock = false; #define USE_PARSER_FOR_BLOCKNESS 1 #ifdef USE_PARSER_FOR_BLOCKNESS nsresult rv; nsCOMPtrelement = do_QueryInterface(aNode); if (!element) { // We don't have an element -- probably a text node return NS_OK; } nsIAtom *tagAtom = GetTag(aNode); NS_ENSURE_TRUE(tagAtom, NS_ERROR_NULL_POINTER); // Nodes we know we want to treat as block // even though the parser says they're not: if (tagAtom==nsEditProperty::body || tagAtom==nsEditProperty::head || tagAtom==nsEditProperty::tbody || tagAtom==nsEditProperty::thead || tagAtom==nsEditProperty::tfoot || tagAtom==nsEditProperty::tr || tagAtom==nsEditProperty::th || tagAtom==nsEditProperty::td || tagAtom==nsEditProperty::li || tagAtom==nsEditProperty::dt || tagAtom==nsEditProperty::dd || tagAtom==nsEditProperty::pre) { *aIsBlock = true; return NS_OK; } rv = nsContentUtils::GetParserService()-> IsBlock(nsContentUtils::GetParserService()->HTMLAtomTagToId(tagAtom), *aIsBlock); #ifdef DEBUG // Check this against what we would have said with the old code: if (tagAtom==nsEditProperty::p || tagAtom==nsEditProperty::div || tagAtom==nsEditProperty::blockquote || tagAtom==nsEditProperty::h1 || tagAtom==nsEditProperty::h2 || tagAtom==nsEditProperty::h3 || tagAtom==nsEditProperty::h4 || tagAtom==nsEditProperty::h5 || tagAtom==nsEditProperty::h6 || tagAtom==nsEditProperty::ul || tagAtom==nsEditProperty::ol || tagAtom==nsEditProperty::dl || tagAtom==nsEditProperty::noscript || tagAtom==nsEditProperty::form || tagAtom==nsEditProperty::hr || tagAtom==nsEditProperty::table || tagAtom==nsEditProperty::fieldset || tagAtom==nsEditProperty::address || tagAtom==nsEditProperty::caption || tagAtom==nsEditProperty::col || tagAtom==nsEditProperty::colgroup || tagAtom==nsEditProperty::li || tagAtom==nsEditProperty::dt || tagAtom==nsEditProperty::dd || tagAtom==nsEditProperty::legend ) { if (!(*aIsBlock)) { nsAutoString assertmsg (NS_LITERAL_STRING("Parser and editor disagree on blockness: ")); nsAutoString tagName; rv = element->GetTagName(tagName); NS_ENSURE_SUCCESS(rv, rv); assertmsg.Append(tagName); char* assertstr = ToNewCString(assertmsg); NS_ASSERTION(*aIsBlock, assertstr); NS_Free(assertstr); } } #endif /* DEBUG */ return rv; #else /* USE_PARSER_FOR_BLOCKNESS */ nsresult result = NS_ERROR_FAILURE; *aIsBlock = false; nsCOMPtrelement; element = do_QueryInterface(aNode); if (element) { nsAutoString tagName; result = element->GetTagName(tagName); if (NS_SUCCEEDED(result)) { ToLowerCase(tagName); nsCOMPtr tagAtom = do_GetAtom(tagName); if (!tagAtom) { return NS_ERROR_NULL_POINTER; } if (tagAtom==nsEditProperty::p || tagAtom==nsEditProperty::div || tagAtom==nsEditProperty::blockquote || tagAtom==nsEditProperty::h1 || tagAtom==nsEditProperty::h2 || tagAtom==nsEditProperty::h3 || tagAtom==nsEditProperty::h4 || tagAtom==nsEditProperty::h5 || tagAtom==nsEditProperty::h6 || tagAtom==nsEditProperty::ul || tagAtom==nsEditProperty::ol || tagAtom==nsEditProperty::dl || tagAtom==nsEditProperty::pre || tagAtom==nsEditProperty::noscript || tagAtom==nsEditProperty::form || tagAtom==nsEditProperty::hr || tagAtom==nsEditProperty::fieldset || tagAtom==nsEditProperty::address || tagAtom==nsEditProperty::body || tagAtom==nsEditProperty::caption || tagAtom==nsEditProperty::table || tagAtom==nsEditProperty::tbody || tagAtom==nsEditProperty::thead || tagAtom==nsEditProperty::tfoot || tagAtom==nsEditProperty::tr || tagAtom==nsEditProperty::td || tagAtom==nsEditProperty::th || tagAtom==nsEditProperty::col || tagAtom==nsEditProperty::colgroup || tagAtom==nsEditProperty::li || tagAtom==nsEditProperty::dt || tagAtom==nsEditProperty::dd || tagAtom==nsEditProperty::legend ) { *aIsBlock = true; } result = NS_OK; } } else { // We don't have an element -- probably a text node nsCOMPtrnodeAsText = do_QueryInterface(aNode); if (nodeAsText) { *aIsBlock = false; result = NS_OK; } } return result; #endif /* USE_PARSER_FOR_BLOCKNESS */ } NS_IMETHODIMP nsHTMLEditor::NodeIsBlock(nsIDOMNode *aNode, bool *aIsBlock) { return NodeIsBlockStatic(aNode, aIsBlock); } bool nsHTMLEditor::IsBlockNode(nsIDOMNode *aNode) { bool isBlock; NodeIsBlockStatic(aNode, &isBlock); return isBlock; } bool nsHTMLEditor::IsBlockNode(nsINode *aNode) { bool isBlock; nsCOMPtr node = do_QueryInterface(aNode); NodeIsBlockStatic(node, &isBlock); return isBlock; } // Non-static version for the nsIEditor interface and JavaScript NS_IMETHODIMP nsHTMLEditor::SetDocumentTitle(const nsAString &aTitle) { nsRefPtr txn = new SetDocTitleTxn(); NS_ENSURE_TRUE(txn, NS_ERROR_OUT_OF_MEMORY); nsresult result = txn->Init(this, &aTitle); NS_ENSURE_SUCCESS(result, result); //Don't let Rules System change the selection nsAutoTxnsConserveSelection dontChangeSelection(this); return nsEditor::DoTransaction(txn); } /* ------------ Block methods moved from nsEditor -------------- */ /////////////////////////////////////////////////////////////////////////// // GetBlockNodeParent: returns enclosing block level ancestor, if any // already_AddRefed nsHTMLEditor::GetBlockNodeParent(nsIDOMNode *aNode) { if (!aNode) { NS_NOTREACHED("null node passed to GetBlockNodeParent()"); return nsnull; } nsCOMPtr p; if (NS_FAILED(aNode->GetParentNode(getter_AddRefs(p)))) // no parent, ran off top of tree return nsnull; nsCOMPtr tmp; while (p) { bool isBlock; if (NS_FAILED(NodeIsBlockStatic(p, &isBlock)) || isBlock) break; if (NS_FAILED(p->GetParentNode(getter_AddRefs(tmp))) || !tmp) // no parent, ran off top of tree break; p = tmp; } return p.forget(); } /////////////////////////////////////////////////////////////////////////// // NextNodeInBlock: gets the next/prev node in the block, if any. Next node // must be an element or text node, others are ignored already_AddRefed nsHTMLEditor::NextNodeInBlock(nsIDOMNode *aNode, IterDirection aDir) { NS_ENSURE_TRUE(aNode, nsnull); nsresult rv; nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &rv); NS_ENSURE_SUCCESS(rv, nsnull); // much gnashing of teeth as we twit back and forth between content and domnode types nsCOMPtr content = do_QueryInterface(aNode); nsCOMPtr blockParent; bool isBlock; if (NS_SUCCEEDED(NodeIsBlockStatic(aNode, &isBlock)) && isBlock) { blockParent = aNode; } else { blockParent = GetBlockNodeParent(aNode); } NS_ENSURE_TRUE(blockParent, nsnull); nsCOMPtr blockContent = do_QueryInterface(blockParent); NS_ENSURE_TRUE(blockContent, nsnull); if (NS_FAILED(iter->Init(blockContent))) { return nsnull; } if (NS_FAILED(iter->PositionAt(content))) { return nsnull; } while (!iter->IsDone()) { // ignore nodes that aren't elements or text, or that are the // block parent nsCOMPtr node = do_QueryInterface(iter->GetCurrentNode()); if (node && IsTextOrElementNode(node) && node != blockParent && node != aNode) return node.forget(); if (aDir == kIterForward) iter->Next(); else iter->Prev(); } return nsnull; } static const PRUnichar nbsp = 160; /////////////////////////////////////////////////////////////////////////// // IsNextCharWhitespace: checks the adjacent content in the same block // to see if following selection is whitespace or nbsp nsresult nsHTMLEditor::IsNextCharWhitespace(nsIDOMNode *aParentNode, PRInt32 aOffset, bool *outIsSpace, bool *outIsNBSP, nsCOMPtr *outNode, PRInt32 *outOffset) { NS_ENSURE_TRUE(outIsSpace && outIsNBSP, NS_ERROR_NULL_POINTER); *outIsSpace = false; *outIsNBSP = false; if (outNode) *outNode = nsnull; if (outOffset) *outOffset = -1; nsAutoString tempString; PRUint32 strLength; nsCOMPtr textNode = do_QueryInterface(aParentNode); if (textNode) { textNode->GetLength(&strLength); if ((PRUint32)aOffset < strLength) { // easy case: next char is in same node textNode->SubstringData(aOffset,aOffset+1,tempString); *outIsSpace = nsCRT::IsAsciiSpace(tempString.First()); *outIsNBSP = (tempString.First() == nbsp); if (outNode) *outNode = do_QueryInterface(aParentNode); if (outOffset) *outOffset = aOffset+1; // yes, this is _past_ the character; return NS_OK; } } // harder case: next char in next node. nsCOMPtr node = NextNodeInBlock(aParentNode, kIterForward); nsCOMPtr tmp; while (node) { bool isBlock (false); NodeIsBlock(node, &isBlock); if (isBlock) // skip over bold, italic, link, ect nodes { if (IsTextNode(node) && IsEditable(node)) { textNode = do_QueryInterface(node); textNode->GetLength(&strLength); if (strLength) { textNode->SubstringData(0,1,tempString); *outIsSpace = nsCRT::IsAsciiSpace(tempString.First()); *outIsNBSP = (tempString.First() == nbsp); if (outNode) *outNode = do_QueryInterface(node); if (outOffset) *outOffset = 1; // yes, this is _past_ the character; return NS_OK; } // else it's an empty text node, or not editable; skip it. } else // node is an image or some other thingy that doesn't count as whitespace { break; } } tmp = node; node = NextNodeInBlock(tmp, kIterForward); } return NS_OK; } /////////////////////////////////////////////////////////////////////////// // IsPrevCharWhitespace: checks the adjacent content in the same block // to see if following selection is whitespace nsresult nsHTMLEditor::IsPrevCharWhitespace(nsIDOMNode *aParentNode, PRInt32 aOffset, bool *outIsSpace, bool *outIsNBSP, nsCOMPtr *outNode, PRInt32 *outOffset) { NS_ENSURE_TRUE(outIsSpace && outIsNBSP, NS_ERROR_NULL_POINTER); *outIsSpace = false; *outIsNBSP = false; if (outNode) *outNode = nsnull; if (outOffset) *outOffset = -1; nsAutoString tempString; PRUint32 strLength; nsCOMPtr textNode = do_QueryInterface(aParentNode); if (textNode) { if (aOffset > 0) { // easy case: prev char is in same node textNode->SubstringData(aOffset-1,aOffset,tempString); *outIsSpace = nsCRT::IsAsciiSpace(tempString.First()); *outIsNBSP = (tempString.First() == nbsp); if (outNode) *outNode = do_QueryInterface(aParentNode); if (outOffset) *outOffset = aOffset-1; return NS_OK; } } // harder case: prev char in next node nsCOMPtr node = NextNodeInBlock(aParentNode, kIterBackward); nsCOMPtr tmp; while (node) { bool isBlock (false); NodeIsBlock(node, &isBlock); if (isBlock) // skip over bold, italic, link, ect nodes { if (IsTextNode(node) && IsEditable(node)) { textNode = do_QueryInterface(node); textNode->GetLength(&strLength); if (strLength) { // you could use nsIContent::TextIsOnlyWhitespace here textNode->SubstringData(strLength-1,strLength,tempString); *outIsSpace = nsCRT::IsAsciiSpace(tempString.First()); *outIsNBSP = (tempString.First() == nbsp); if (outNode) *outNode = do_QueryInterface(aParentNode); if (outOffset) *outOffset = strLength-1; return NS_OK; } // else it's an empty text node, or not editable; skip it. } else // node is an image or some other thingy that doesn't count as whitespace { break; } } // otherwise we found a node we want to skip, keep going tmp = node; node = NextNodeInBlock(tmp, kIterBackward); } return NS_OK; } /* ------------ End Block methods -------------- */ bool nsHTMLEditor::IsVisBreak(nsIDOMNode *aNode) { NS_ENSURE_TRUE(aNode, false); if (!nsTextEditUtils::IsBreak(aNode)) return false; // check if there is a later node in block after br nsCOMPtr priorNode, nextNode; GetPriorHTMLNode(aNode, address_of(priorNode), true); GetNextHTMLNode(aNode, address_of(nextNode), true); // if we are next to another break, we are visible if (priorNode && nsTextEditUtils::IsBreak(priorNode)) return true; if (nextNode && nsTextEditUtils::IsBreak(nextNode)) return true; // if we are right before block boundary, then br not visible NS_ENSURE_TRUE(nextNode, false); // this break is trailer in block, it's not visible if (IsBlockNode(nextNode)) return false; // break is right before a block, it's not visible // sigh. We have to use expensive whitespace calculation code to // determine what is going on nsCOMPtr selNode, tmp; PRInt32 selOffset; GetNodeLocation(aNode, address_of(selNode), &selOffset); selOffset++; // lets look after the break nsWSRunObject wsObj(this, selNode, selOffset); nsCOMPtr visNode; PRInt32 visOffset=0; PRInt16 visType=0; wsObj.NextVisibleNode(selNode, selOffset, address_of(visNode), &visOffset, &visType); if (visType & nsWSRunObject::eBlock) return false; return true; } NS_IMETHODIMP nsHTMLEditor::BreakIsVisible(nsIDOMNode *aNode, bool *aIsVisible) { NS_ENSURE_ARG_POINTER(aNode && aIsVisible); *aIsVisible = IsVisBreak(aNode); return NS_OK; } NS_IMETHODIMP nsHTMLEditor::GetIsDocumentEditable(bool *aIsDocumentEditable) { NS_ENSURE_ARG_POINTER(aIsDocumentEditable); nsCOMPtr doc = GetDOMDocument(); *aIsDocumentEditable = doc && IsModifiable(); return NS_OK; } bool nsHTMLEditor::IsModifiable() { return !IsReadonly(); } NS_IMETHODIMP nsHTMLEditor::UpdateBaseURL() { nsCOMPtr domDoc = GetDOMDocument(); NS_ENSURE_TRUE(domDoc, NS_ERROR_FAILURE); // Look for an HTML tag nsCOMPtr nodeList; nsresult rv = domDoc->GetElementsByTagName(NS_LITERAL_STRING("base"), getter_AddRefs(nodeList)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr baseNode; if (nodeList) { PRUint32 count; nodeList->GetLength(&count); if (count >= 1) { rv = nodeList->Item(0, getter_AddRefs(baseNode)); NS_ENSURE_SUCCESS(rv, rv); } } // If no base tag, then set baseURL to the document's URL // This is very important, else relative URLs for links and images are wrong if (!baseNode) { nsCOMPtr doc = do_QueryInterface(domDoc); NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE); return doc->SetBaseURI(doc->GetDocumentURI()); } return NS_OK; } /* This routine is needed to provide a bottleneck for typing for logging purposes. Can't use HandleKeyPress() (above) for that since it takes a nsIDOMKeyEvent* parameter. So instead we pass enough info through to TypedText() to determine what action to take, but without passing an event. */ NS_IMETHODIMP nsHTMLEditor::TypedText(const nsAString& aString, PRInt32 aAction) { nsAutoPlaceHolderBatch batch(this, nsGkAtoms::TypingTxnName); switch (aAction) { case eTypedText: case eTypedBreak: { return nsPlaintextEditor::TypedText(aString, aAction); } case eTypedBR: { nsCOMPtr brNode; return InsertBR(address_of(brNode)); // only inserts a br node } } return NS_ERROR_FAILURE; } NS_IMETHODIMP nsHTMLEditor::TabInTable(bool inIsShift, bool *outHandled) { NS_ENSURE_TRUE(outHandled, NS_ERROR_NULL_POINTER); *outHandled = false; // Find enclosing table cell from the selection (cell may be the selected element) nsCOMPtr cellElement; // can't use |NS_LITERAL_STRING| here until |GetElementOrParentByTagName| is fixed to accept readables nsresult res = GetElementOrParentByTagName(NS_LITERAL_STRING("td"), nsnull, getter_AddRefs(cellElement)); NS_ENSURE_SUCCESS(res, res); // Do nothing -- we didn't find a table cell NS_ENSURE_TRUE(cellElement, NS_OK); // find enclosing table nsCOMPtr tbl = GetEnclosingTable(cellElement); NS_ENSURE_TRUE(tbl, res); // advance to next cell // first create an iterator over the table nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &res); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(iter, NS_ERROR_NULL_POINTER); nsCOMPtr cTbl = do_QueryInterface(tbl); nsCOMPtr cBlock = do_QueryInterface(cellElement); res = iter->Init(cTbl); NS_ENSURE_SUCCESS(res, res); // position iter at block res = iter->PositionAt(cBlock); NS_ENSURE_SUCCESS(res, res); nsCOMPtr node; do { if (inIsShift) iter->Prev(); else iter->Next(); node = do_QueryInterface(iter->GetCurrentNode()); if (node && nsHTMLEditUtils::IsTableCell(node) && GetEnclosingTable(node) == tbl) { res = CollapseSelectionToDeepestNonTableFirstChild(nsnull, node); NS_ENSURE_SUCCESS(res, res); *outHandled = true; return NS_OK; } } while (!iter->IsDone()); if (!(*outHandled) && !inIsShift) { // if we havent handled it yet then we must have run off the end of // the table. Insert a new row. res = InsertTableRow(1, true); NS_ENSURE_SUCCESS(res, res); *outHandled = true; // put selection in right place // Use table code to get selection and index to new row... nsCOMPtrselection; nsCOMPtr tblElement; nsCOMPtr cell; PRInt32 row; res = GetCellContext(getter_AddRefs(selection), getter_AddRefs(tblElement), getter_AddRefs(cell), nsnull, nsnull, &row, nsnull); NS_ENSURE_SUCCESS(res, res); // ...so that we can ask for first cell in that row... res = GetCellAt(tblElement, row, 0, getter_AddRefs(cell)); NS_ENSURE_SUCCESS(res, res); // ...and then set selection there. // (Note that normally you should use CollapseSelectionToDeepestNonTableFirstChild(), // but we know cell is an empty new cell, so this works fine) node = do_QueryInterface(cell); if (node) selection->Collapse(node,0); return NS_OK; } return res; } NS_IMETHODIMP nsHTMLEditor::CreateBR(nsIDOMNode *aNode, PRInt32 aOffset, nsCOMPtr *outBRNode, EDirection aSelect) { nsCOMPtr parent = aNode; PRInt32 offset = aOffset; return CreateBRImpl(address_of(parent), &offset, outBRNode, aSelect); } nsresult nsHTMLEditor::CollapseSelectionToDeepestNonTableFirstChild(nsISelection *aSelection, nsIDOMNode *aNode) { NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER); nsresult res; nsCOMPtr selection; if (aSelection) { selection = aSelection; } else { res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_FAILURE); } nsCOMPtr node = aNode; nsCOMPtr child; do { node->GetFirstChild(getter_AddRefs(child)); if (child) { // Stop if we find a table // don't want to go into nested tables if (nsHTMLEditUtils::IsTable(child)) break; // hey, it'g gotta be a container too! if (!IsContainer(child)) break; node = child; } } while (child); selection->Collapse(node,0); return NS_OK; } // This is mostly like InsertHTMLWithCharsetAndContext, // but we can't use that because it is selection-based and // the rules code won't let us edit under the node NS_IMETHODIMP nsHTMLEditor::ReplaceHeadContentsWithHTML(const nsAString& aSourceToInsert) { nsAutoRules beginRulesSniffing(this, kOpIgnore, nsIEditor::eNone); // don't do any post processing, rules get confused nsCOMPtr selection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); ForceCompositionEnd(); // Do not use nsAutoRules -- rules code won't let us insert in // Use the head node as a parent and delete/insert directly nsCOMPtr doc = do_QueryReferent(mDocWeak); NS_ENSURE_TRUE(doc, NS_ERROR_NOT_INITIALIZED); nsCOMPtrnodeList; res = doc->GetElementsByTagName(NS_LITERAL_STRING("head"), getter_AddRefs(nodeList)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(nodeList, NS_ERROR_NULL_POINTER); PRUint32 count; nodeList->GetLength(&count); if (count < 1) return NS_ERROR_FAILURE; nsCOMPtr headNode; res = nodeList->Item(0, getter_AddRefs(headNode)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(headNode, NS_ERROR_NULL_POINTER); // First, make sure there are no return chars in the source. // Bad things happen if you insert returns (instead of dom newlines, \n) // into an editor document. nsAutoString inputString (aSourceToInsert); // hope this does copy-on-write // Windows linebreaks: Map CRLF to LF: inputString.ReplaceSubstring(NS_LITERAL_STRING("\r\n").get(), NS_LITERAL_STRING("\n").get()); // Mac linebreaks: Map any remaining CR to LF: inputString.ReplaceSubstring(NS_LITERAL_STRING("\r").get(), NS_LITERAL_STRING("\n").get()); nsAutoEditBatch beginBatching(this); res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); // Get the first range in the selection, for context: nsCOMPtr range; res = selection->GetRangeAt(0, getter_AddRefs(range)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr docfrag; res = range->CreateContextualFragment(inputString, getter_AddRefs(docfrag)); //XXXX BUG 50965: This is not returning the text between ... // Special code is needed in JS to handle title anyway, so it really doesn't matter! if (NS_FAILED(res)) { #ifdef DEBUG printf("Couldn't create contextual fragment: error was %d\n", res); #endif return res; } NS_ENSURE_TRUE(docfrag, NS_ERROR_NULL_POINTER); nsCOMPtr child; // First delete all children in head do { res = headNode->GetFirstChild(getter_AddRefs(child)); NS_ENSURE_SUCCESS(res, res); if (child) { res = DeleteNode(child); NS_ENSURE_SUCCESS(res, res); } } while (child); // Now insert the new nodes PRInt32 offsetOfNewNode = 0; nsCOMPtr fragmentAsNode (do_QueryInterface(docfrag)); // Loop over the contents of the fragment and move into the document do { res = fragmentAsNode->GetFirstChild(getter_AddRefs(child)); NS_ENSURE_SUCCESS(res, res); if (child) { res = InsertNode(child, headNode, offsetOfNewNode++); NS_ENSURE_SUCCESS(res, res); } } while (child); return res; } NS_IMETHODIMP nsHTMLEditor::RebuildDocumentFromSource(const nsAString& aSourceString) { ForceCompositionEnd(); nsCOMPtrselection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr bodyElement = do_QueryInterface(GetRoot()); NS_ENSURE_TRUE(bodyElement, NS_ERROR_NULL_POINTER); // Find where the tag starts. nsReadingIterator beginbody; nsReadingIterator endbody; aSourceString.BeginReading(beginbody); aSourceString.EndReading(endbody); bool foundbody = CaseInsensitiveFindInReadable(NS_LITERAL_STRING(" beginhead; nsReadingIterator endhead; aSourceString.BeginReading(beginhead); aSourceString.EndReading(endhead); bool foundhead = CaseInsensitiveFindInReadable(NS_LITERAL_STRING(" beginclosehead; nsReadingIterator endclosehead; aSourceString.BeginReading(beginclosehead); aSourceString.EndReading(endclosehead); // Find the index after "" bool foundclosehead = CaseInsensitiveFindInReadable( NS_LITERAL_STRING(""), beginclosehead, endclosehead); // Time to change the document nsAutoEditBatch beginBatching(this); nsReadingIterator endtotal; aSourceString.EndReading(endtotal); if (foundhead) { if (foundclosehead) res = ReplaceHeadContentsWithHTML(Substring(beginhead, beginclosehead)); else if (foundbody) res = ReplaceHeadContentsWithHTML(Substring(beginhead, beginbody)); else // XXX Without recourse to some parser/content sink/docshell hackery // we don't really know where the head ends and the body begins // so we assume that there is no body res = ReplaceHeadContentsWithHTML(Substring(beginhead, endtotal)); } else { nsReadingIterator begintotal; aSourceString.BeginReading(begintotal); NS_NAMED_LITERAL_STRING(head, ""); if (foundclosehead) res = ReplaceHeadContentsWithHTML(head + Substring(begintotal, beginclosehead)); else if (foundbody) res = ReplaceHeadContentsWithHTML(head + Substring(begintotal, beginbody)); else // XXX Without recourse to some parser/content sink/docshell hackery // we don't really know where the head ends and the body begins // so we assume that there is no head res = ReplaceHeadContentsWithHTML(head); } NS_ENSURE_SUCCESS(res, res); res = SelectAll(); NS_ENSURE_SUCCESS(res, res); if (!foundbody) { NS_NAMED_LITERAL_STRING(body, ""); // XXX Without recourse to some parser/content sink/docshell hackery // we don't really know where the head ends and the body begins if (foundclosehead) // assume body starts after the head ends res = LoadHTML(body + Substring(endclosehead, endtotal)); else if (foundhead) // assume there is no body res = LoadHTML(body); else // assume there is no head, the entire source is body res = LoadHTML(body + aSourceString); NS_ENSURE_SUCCESS(res, res); nsCOMPtr divElement; res = CreateElementWithDefaults(NS_LITERAL_STRING("div"), getter_AddRefs(divElement)); NS_ENSURE_SUCCESS(res, res); res = CloneAttributes(bodyElement, divElement); NS_ENSURE_SUCCESS(res, res); return BeginningOfDocument(); } res = LoadHTML(Substring(beginbody, endtotal)); NS_ENSURE_SUCCESS(res, res); // Now we must copy attributes user might have edited on the tag // because InsertHTML (actually, CreateContextualFragment()) // will never return a body node in the DOM fragment // We already know where " beginclosebody = beginbody; nsReadingIterator endclosebody; aSourceString.EndReading(endclosebody); if (!FindInReadable(NS_LITERAL_STRING(">"),beginclosebody,endclosebody)) return NS_ERROR_FAILURE; // Truncate at the end of the body tag // Kludge of the year: fool the parser by replacing "body" with "div" so we get a node nsAutoString bodyTag; bodyTag.AssignLiteral("
range; res = selection->GetRangeAt(0, getter_AddRefs(range)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr docfrag; res = range->CreateContextualFragment(bodyTag, getter_AddRefs(docfrag)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr fragmentAsNode (do_QueryInterface(docfrag)); NS_ENSURE_TRUE(fragmentAsNode, NS_ERROR_NULL_POINTER); nsCOMPtr child; res = fragmentAsNode->GetFirstChild(getter_AddRefs(child)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(child, NS_ERROR_NULL_POINTER); // Copy all attributes from the div child to current body element res = CloneAttributes(bodyElement, child); NS_ENSURE_SUCCESS(res, res); // place selection at first editable content return BeginningOfDocument(); } void nsHTMLEditor::NormalizeEOLInsertPosition(nsIDOMNode *firstNodeToInsert, nsCOMPtr *insertParentNode, PRInt32 *insertOffset) { /* This function will either correct the position passed in, or leave the position unchanged. When the (first) item to insert is a block level element, and our insertion position is after the last visible item in a line, i.e. the insertion position is just before a visible line break
, we want to skip to the position just after the line break (see bug 68767) However, our logic to detect whether we should skip or not needs to be more clever. We must not skip when the caret appears to be positioned at the beginning of a block, in that case skipping the
would not insert the
at the caret position, but after the current empty line. So we have several cases to test: 1) We only ever want to skip, if the next visible thing after the current position is a break 2) We do not want to skip if there is no previous visible thing at all That is detected if the call to PriorVisibleNode gives us an offset of zero. Because PriorVisibleNode always positions after the prior node, we would see an offset > 0, if there were a prior node. 3) We do not want to skip, if both the next and the previous visible things are breaks. 4) We do not want to skip if the previous visible thing is in a different block than the insertion position. */ if (!IsBlockNode(firstNodeToInsert)) return; nsWSRunObject wsObj(this, *insertParentNode, *insertOffset); nsCOMPtr nextVisNode; nsCOMPtr prevVisNode; PRInt32 nextVisOffset=0; PRInt16 nextVisType=0; PRInt32 prevVisOffset=0; PRInt16 prevVisType=0; wsObj.NextVisibleNode(*insertParentNode, *insertOffset, address_of(nextVisNode), &nextVisOffset, &nextVisType); if (!nextVisNode) return; if (! (nextVisType & nsWSRunObject::eBreak)) return; wsObj.PriorVisibleNode(*insertParentNode, *insertOffset, address_of(prevVisNode), &prevVisOffset, &prevVisType); if (!prevVisNode) return; if (prevVisType & nsWSRunObject::eBreak) return; if (prevVisType & nsWSRunObject::eThisBlock) return; nsCOMPtr brNode; PRInt32 brOffset=0; GetNodeLocation(nextVisNode, address_of(brNode), &brOffset); *insertParentNode = brNode; *insertOffset = brOffset + 1; } NS_IMETHODIMP nsHTMLEditor::InsertElementAtSelection(nsIDOMElement* aElement, bool aDeleteSelection) { // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsresult res = NS_ERROR_NOT_INITIALIZED; NS_ENSURE_TRUE(aElement, NS_ERROR_NULL_POINTER); nsCOMPtr node = do_QueryInterface(aElement); ForceCompositionEnd(); nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, kOpInsertElement, nsIEditor::eNext); nsCOMPtrselection; res = GetSelection(getter_AddRefs(selection)); if (NS_FAILED(res) || !selection) return NS_ERROR_FAILURE; // hand off to the rules system, see if it has anything to say about this bool cancel, handled; nsTextRulesInfo ruleInfo(kOpInsertElement); ruleInfo.insertElement = aElement; res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || (NS_FAILED(res))) return res; if (!handled) { if (aDeleteSelection) { nsCOMPtr tempNode; PRInt32 tempOffset; nsresult result = DeleteSelectionAndPrepareToCreateNode(tempNode,tempOffset); NS_ENSURE_SUCCESS(result, result); } // If deleting, selection will be collapsed. // so if not, we collapse it if (!aDeleteSelection) { // Named Anchor is a special case, // We collapse to insert element BEFORE the selection // For all other tags, we insert AFTER the selection if (nsHTMLEditUtils::IsNamedAnchor(node)) { selection->CollapseToStart(); } else { selection->CollapseToEnd(); } } nsCOMPtr parentSelectedNode; PRInt32 offsetForInsert; res = selection->GetAnchorNode(getter_AddRefs(parentSelectedNode)); // XXX: ERROR_HANDLING bad XPCOM usage if (NS_SUCCEEDED(res) && NS_SUCCEEDED(selection->GetAnchorOffset(&offsetForInsert)) && parentSelectedNode) { #ifdef DEBUG_cmanske { nsAutoString name; parentSelectedNode->GetNodeName(name); printf("InsertElement: Anchor node of selection: "); wprintf(name.get()); printf(" Offset: %d\n", offsetForInsert); } #endif // Adjust position based on the node we are going to insert. NormalizeEOLInsertPosition(node, address_of(parentSelectedNode), &offsetForInsert); res = InsertNodeAtPoint(node, address_of(parentSelectedNode), &offsetForInsert, false); NS_ENSURE_SUCCESS(res, res); // Set caret after element, but check for special case // of inserting table-related elements: set in first cell instead if (!SetCaretInTableCell(aElement)) { res = SetCaretAfterElement(aElement); NS_ENSURE_SUCCESS(res, res); } // check for inserting a whole table at the end of a block. If so insert a br after it. if (nsHTMLEditUtils::IsTable(node)) { bool isLast; res = IsLastEditableChild(node, &isLast); NS_ENSURE_SUCCESS(res, res); if (isLast) { nsCOMPtr brNode; res = CreateBR(parentSelectedNode, offsetForInsert+1, address_of(brNode)); NS_ENSURE_SUCCESS(res, res); selection->Collapse(parentSelectedNode, offsetForInsert+1); } } } } res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } /* InsertNodeAtPoint: attempts to insert aNode into the document, at a point specified by {*ioParent,*ioOffset}. Checks with strict dtd to see if containment is allowed. If not allowed, will attempt to find a parent in the parent hierarchy of *ioParent that will accept aNode as a child. If such a parent is found, will split the document tree from {*ioParent,*ioOffset} up to parent, and then insert aNode. ioParent & ioOffset are then adjusted to point to the actual location that aNode was inserted at. aNoEmptyNodes specifies if the splitting process is allowed to reslt in empty nodes. nsIDOMNode *aNode node to insert nsCOMPtr *ioParent insertion parent PRInt32 *ioOffset insertion offset bool aNoEmptyNodes splitting can result in empty nodes? */ nsresult nsHTMLEditor::InsertNodeAtPoint(nsIDOMNode *aNode, nsCOMPtr *ioParent, PRInt32 *ioOffset, bool aNoEmptyNodes) { NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER); NS_ENSURE_TRUE(ioParent, NS_ERROR_NULL_POINTER); NS_ENSURE_TRUE(*ioParent, NS_ERROR_NULL_POINTER); NS_ENSURE_TRUE(ioOffset, NS_ERROR_NULL_POINTER); nsresult res = NS_OK; nsCOMPtr parent = *ioParent; nsCOMPtr topChild = *ioParent; nsCOMPtr tmp; PRInt32 offsetOfInsert = *ioOffset; // Search up the parent chain to find a suitable container while (!CanContain(parent, aNode)) { // If the current parent is a root (body or table element) // then go no further - we can't insert if (nsTextEditUtils::IsBody(parent) || nsHTMLEditUtils::IsTableElement(parent)) return NS_ERROR_FAILURE; // Get the next parent parent->GetParentNode(getter_AddRefs(tmp)); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); topChild = parent; parent = tmp; } if (parent != topChild) { // we need to split some levels above the original selection parent res = SplitNodeDeep(topChild, *ioParent, *ioOffset, &offsetOfInsert, aNoEmptyNodes); NS_ENSURE_SUCCESS(res, res); *ioParent = parent; *ioOffset = offsetOfInsert; } // Now we can insert the new node res = InsertNode(aNode, parent, offsetOfInsert); return res; } NS_IMETHODIMP nsHTMLEditor::SelectElement(nsIDOMElement* aElement) { nsresult res = NS_ERROR_NULL_POINTER; // Must be sure that element is contained in the document body if (IsDescendantOfEditorRoot(aElement)) { nsCOMPtr selection; res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsCOMPtrparent; res = aElement->GetParentNode(getter_AddRefs(parent)); if (NS_SUCCEEDED(res) && parent) { PRInt32 offsetInParent; res = GetChildOffset(aElement, parent, offsetInParent); if (NS_SUCCEEDED(res)) { // Collapse selection to just before desired element, res = selection->Collapse(parent, offsetInParent); if (NS_SUCCEEDED(res)) { // then extend it to just after res = selection->Extend(parent, offsetInParent+1); } } } } return res; } NS_IMETHODIMP nsHTMLEditor::SetCaretAfterElement(nsIDOMElement* aElement) { nsresult res = NS_ERROR_NULL_POINTER; // Be sure the element is contained in the document body if (aElement && IsDescendantOfEditorRoot(aElement)) { nsCOMPtr selection; res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsCOMPtrparent; res = aElement->GetParentNode(getter_AddRefs(parent)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER); PRInt32 offsetInParent; res = GetChildOffset(aElement, parent, offsetInParent); if (NS_SUCCEEDED(res)) { // Collapse selection to just after desired element, res = selection->Collapse(parent, offsetInParent+1); #if 0 //def DEBUG_cmanske { nsAutoString name; parent->GetNodeName(name); printf("SetCaretAfterElement: Parent node: "); wprintf(name.get()); printf(" Offset: %d\n\nHTML:\n", offsetInParent+1); nsAutoString Format("text/html"); nsAutoString ContentsAs; OutputToString(Format, 2, ContentsAs); wprintf(ContentsAs.get()); } #endif } } return res; } NS_IMETHODIMP nsHTMLEditor::SetParagraphFormat(const nsAString& aParagraphFormat) { nsAutoString tag; tag.Assign(aParagraphFormat); ToLowerCase(tag); if (tag.EqualsLiteral("dd") || tag.EqualsLiteral("dt")) return MakeDefinitionItem(tag); else return InsertBasicBlock(tag); } NS_IMETHODIMP nsHTMLEditor::GetParagraphState(bool *aMixed, nsAString &outFormat) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } NS_ENSURE_TRUE(aMixed, NS_ERROR_NULL_POINTER); nsHTMLEditRules* htmlRules = static_cast(mRules.get()); NS_ENSURE_TRUE(htmlRules, NS_ERROR_FAILURE); return htmlRules->GetParagraphState(aMixed, outFormat); } NS_IMETHODIMP nsHTMLEditor::GetBackgroundColorState(bool *aMixed, nsAString &aOutColor) { nsresult res; if (IsCSSEnabled()) { // if we are in CSS mode, we have to check if the containing block defines // a background color res = GetCSSBackgroundColorState(aMixed, aOutColor, true); } else { // in HTML mode, we look only at page's background res = GetHTMLBackgroundColorState(aMixed, aOutColor); } return res; } NS_IMETHODIMP nsHTMLEditor::GetHighlightColorState(bool *aMixed, nsAString &aOutColor) { nsresult res = NS_OK; *aMixed = false; aOutColor.AssignLiteral("transparent"); if (IsCSSEnabled()) { // in CSS mode, text background can be added by the Text Highlight button // we need to query the background of the selection without looking for // the block container of the ranges in the selection res = GetCSSBackgroundColorState(aMixed, aOutColor, false); } return res; } nsresult nsHTMLEditor::GetCSSBackgroundColorState(bool *aMixed, nsAString &aOutColor, bool aBlockLevel) { NS_ENSURE_TRUE(aMixed, NS_ERROR_NULL_POINTER); *aMixed = false; // the default background color is transparent aOutColor.AssignLiteral("transparent"); // get selection nsCOMPtrselection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); // get selection location nsCOMPtr parent; PRInt32 offset; res = GetStartNodeAndOffset(selection, getter_AddRefs(parent), &offset); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER); // is the selection collapsed? bool bCollapsed; res = selection->GetIsCollapsed(&bCollapsed); NS_ENSURE_SUCCESS(res, res); nsCOMPtr nodeToExamine; if (bCollapsed || IsTextNode(parent)) { // we want to look at the parent and ancestors nodeToExamine = parent; } else { // otherwise we want to look at the first editable node after // {parent,offset} and its ancestors for divs with alignment on them nodeToExamine = GetChildAt(parent, offset); //GetNextNode(parent, offset, true, address_of(nodeToExamine)); } NS_ENSURE_TRUE(nodeToExamine, NS_ERROR_NULL_POINTER); // is the node to examine a block ? bool isBlock; res = NodeIsBlockStatic(nodeToExamine, &isBlock); NS_ENSURE_SUCCESS(res, res); nsCOMPtr tmp; if (aBlockLevel) { // we are querying the block background (and not the text background), let's // climb to the block container nsCOMPtr blockParent = nodeToExamine; if (!isBlock) { blockParent = GetBlockNodeParent(nodeToExamine); NS_ENSURE_TRUE(blockParent, NS_OK); } // Make sure to not walk off onto the Document node nsCOMPtr element; do { // retrieve the computed style of background-color for blockParent mHTMLCSSUtils->GetComputedProperty(blockParent, nsEditProperty::cssBackgroundColor, aOutColor); tmp.swap(blockParent); res = tmp->GetParentNode(getter_AddRefs(blockParent)); element = do_QueryInterface(blockParent); // look at parent if the queried color is transparent and if the node to // examine is not the root of the document } while (aOutColor.EqualsLiteral("transparent") && element); if (aOutColor.EqualsLiteral("transparent")) { // we have hit the root of the document and the color is still transparent ! // Grumble... Let's look at the default background color because that's the // color we are looking for mHTMLCSSUtils->GetDefaultBackgroundColor(aOutColor); } } else { // no, we are querying the text background for the Text Highlight button if (IsTextNode(nodeToExamine)) { // if the node of interest is a text node, let's climb a level res = nodeToExamine->GetParentNode(getter_AddRefs(parent)); NS_ENSURE_SUCCESS(res, res); nodeToExamine = parent; } do { // is the node to examine a block ? res = NodeIsBlockStatic(nodeToExamine, &isBlock); NS_ENSURE_SUCCESS(res, res); if (isBlock) { // yes it is a block; in that case, the text background color is transparent aOutColor.AssignLiteral("transparent"); break; } else { // no, it's not; let's retrieve the computed style of background-color for the // node to examine mHTMLCSSUtils->GetComputedProperty(nodeToExamine, nsEditProperty::cssBackgroundColor, aOutColor); if (!aOutColor.EqualsLiteral("transparent")) { break; } } tmp.swap(nodeToExamine); res = tmp->GetParentNode(getter_AddRefs(nodeToExamine)); NS_ENSURE_SUCCESS(res, res); } while ( aOutColor.EqualsLiteral("transparent") && nodeToExamine ); } return NS_OK; } NS_IMETHODIMP nsHTMLEditor::GetHTMLBackgroundColorState(bool *aMixed, nsAString &aOutColor) { //TODO: We don't handle "mixed" correctly! NS_ENSURE_TRUE(aMixed, NS_ERROR_NULL_POINTER); *aMixed = false; aOutColor.Truncate(); nsCOMPtr domElement; PRInt32 selectedCount; nsAutoString tagName; nsresult res = GetSelectedOrParentTableElement(tagName, &selectedCount, getter_AddRefs(domElement)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr element = do_QueryInterface(domElement); while (element) { // We are in a cell or selected table element->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::bgcolor, aOutColor); // Done if we have a color explicitly set if (!aOutColor.IsEmpty()) { return NS_OK; } // Once we hit the body, we're done if (element->AsElement()->IsHTML(nsGkAtoms::body)) { return NS_OK; } // No color is set, but we need to report visible color inherited // from nested cells/tables, so search up parent chain element = element->GetElementParent(); } // If no table or cell found, get page body dom::Element* bodyElement = GetRoot(); NS_ENSURE_TRUE(bodyElement, NS_ERROR_NULL_POINTER); bodyElement->GetAttr(kNameSpaceID_None, nsGkAtoms::bgcolor, aOutColor); return NS_OK; } NS_IMETHODIMP nsHTMLEditor::GetListState(bool *aMixed, bool *aOL, bool *aUL, bool *aDL) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } NS_ENSURE_TRUE(aMixed && aOL && aUL && aDL, NS_ERROR_NULL_POINTER); nsHTMLEditRules* htmlRules = static_cast(mRules.get()); NS_ENSURE_TRUE(htmlRules, NS_ERROR_FAILURE); return htmlRules->GetListState(aMixed, aOL, aUL, aDL); } NS_IMETHODIMP nsHTMLEditor::GetListItemState(bool *aMixed, bool *aLI, bool *aDT, bool *aDD) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } NS_ENSURE_TRUE(aMixed && aLI && aDT && aDD, NS_ERROR_NULL_POINTER); nsHTMLEditRules* htmlRules = static_cast(mRules.get()); NS_ENSURE_TRUE(htmlRules, NS_ERROR_FAILURE); return htmlRules->GetListItemState(aMixed, aLI, aDT, aDD); } NS_IMETHODIMP nsHTMLEditor::GetAlignment(bool *aMixed, nsIHTMLEditor::EAlignment *aAlign) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } NS_ENSURE_TRUE(aMixed && aAlign, NS_ERROR_NULL_POINTER); nsHTMLEditRules* htmlRules = static_cast(mRules.get()); NS_ENSURE_TRUE(htmlRules, NS_ERROR_FAILURE); return htmlRules->GetAlignment(aMixed, aAlign); } NS_IMETHODIMP nsHTMLEditor::GetIndentState(bool *aCanIndent, bool *aCanOutdent) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } NS_ENSURE_TRUE(aCanIndent && aCanOutdent, NS_ERROR_NULL_POINTER); nsHTMLEditRules* htmlRules = static_cast(mRules.get()); NS_ENSURE_TRUE(htmlRules, NS_ERROR_FAILURE); return htmlRules->GetIndentState(aCanIndent, aCanOutdent); } NS_IMETHODIMP nsHTMLEditor::MakeOrChangeList(const nsAString& aListType, bool entireList, const nsAString& aBulletType) { nsresult res; if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsCOMPtr selection; bool cancel, handled; nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, kOpMakeList, nsIEditor::eNext); // pre-process res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsTextRulesInfo ruleInfo(kOpMakeList); ruleInfo.blockType = &aListType; ruleInfo.entireList = entireList; ruleInfo.bulletType = &aBulletType; res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || (NS_FAILED(res))) return res; if (!handled) { // Find out if the selection is collapsed: bool isCollapsed; res = selection->GetIsCollapsed(&isCollapsed); NS_ENSURE_SUCCESS(res, res); nsCOMPtr node; PRInt32 offset; res = GetStartNodeAndOffset(selection, getter_AddRefs(node), &offset); if (!node) res = NS_ERROR_FAILURE; NS_ENSURE_SUCCESS(res, res); if (isCollapsed) { // have to find a place to put the list nsCOMPtr parent = node; nsCOMPtr topChild = node; nsCOMPtr tmp; nsCOMPtr listAtom = do_GetAtom(aListType); while (!CanContainTag(parent, listAtom)) { parent->GetParentNode(getter_AddRefs(tmp)); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); topChild = parent; parent = tmp; } if (parent != node) { // we need to split up to the child of parent res = SplitNodeDeep(topChild, node, offset, &offset); NS_ENSURE_SUCCESS(res, res); } // make a list nsCOMPtr newList; res = CreateNode(aListType, parent, offset, getter_AddRefs(newList)); NS_ENSURE_SUCCESS(res, res); // make a list item nsCOMPtr newItem; res = CreateNode(NS_LITERAL_STRING("li"), newList, 0, getter_AddRefs(newItem)); NS_ENSURE_SUCCESS(res, res); res = selection->Collapse(newItem,0); NS_ENSURE_SUCCESS(res, res); } } res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } NS_IMETHODIMP nsHTMLEditor::RemoveList(const nsAString& aListType) { nsresult res; if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsCOMPtr selection; bool cancel, handled; nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, kOpRemoveList, nsIEditor::eNext); // pre-process res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsTextRulesInfo ruleInfo(kOpRemoveList); if (aListType.LowerCaseEqualsLiteral("ol")) ruleInfo.bOrdered = true; else ruleInfo.bOrdered = false; res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || (NS_FAILED(res))) return res; // no default behavior for this yet. what would it mean? res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } nsresult nsHTMLEditor::MakeDefinitionItem(const nsAString& aItemType) { nsresult res; if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsCOMPtr selection; bool cancel, handled; nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, kOpMakeDefListItem, nsIEditor::eNext); // pre-process res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsTextRulesInfo ruleInfo(kOpMakeDefListItem); ruleInfo.blockType = &aItemType; res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || (NS_FAILED(res))) return res; if (!handled) { // todo: no default for now. we count on rules to handle it. } res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } nsresult nsHTMLEditor::InsertBasicBlock(const nsAString& aBlockType) { nsresult res; if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsCOMPtr selection; bool cancel, handled; nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, kOpMakeBasicBlock, nsIEditor::eNext); // pre-process res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsTextRulesInfo ruleInfo(kOpMakeBasicBlock); ruleInfo.blockType = &aBlockType; res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || (NS_FAILED(res))) return res; if (!handled) { // Find out if the selection is collapsed: bool isCollapsed; res = selection->GetIsCollapsed(&isCollapsed); NS_ENSURE_SUCCESS(res, res); nsCOMPtr node; PRInt32 offset; res = GetStartNodeAndOffset(selection, getter_AddRefs(node), &offset); if (!node) res = NS_ERROR_FAILURE; NS_ENSURE_SUCCESS(res, res); if (isCollapsed) { // have to find a place to put the block nsCOMPtr parent = node; nsCOMPtr topChild = node; nsCOMPtr tmp; nsCOMPtr blockAtom = do_GetAtom(aBlockType); while (!CanContainTag(parent, blockAtom)) { parent->GetParentNode(getter_AddRefs(tmp)); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); topChild = parent; parent = tmp; } if (parent != node) { // we need to split up to the child of parent res = SplitNodeDeep(topChild, node, offset, &offset); NS_ENSURE_SUCCESS(res, res); } // make a block nsCOMPtr newBlock; res = CreateNode(aBlockType, parent, offset, getter_AddRefs(newBlock)); NS_ENSURE_SUCCESS(res, res); // reposition selection to inside the block res = selection->Collapse(newBlock,0); NS_ENSURE_SUCCESS(res, res); } } res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } NS_IMETHODIMP nsHTMLEditor::Indent(const nsAString& aIndent) { nsresult res; if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); bool cancel, handled; OperationID opID = kOpIndent; if (aIndent.LowerCaseEqualsLiteral("outdent")) { opID = kOpOutdent; } nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, opID, nsIEditor::eNext); // pre-process nsCOMPtr selection; res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsTextRulesInfo ruleInfo(opID); res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || (NS_FAILED(res))) return res; if (!handled) { // Do default - insert a blockquote node if selection collapsed nsCOMPtr node; PRInt32 offset; bool isCollapsed; res = selection->GetIsCollapsed(&isCollapsed); NS_ENSURE_SUCCESS(res, res); res = GetStartNodeAndOffset(selection, getter_AddRefs(node), &offset); if (!node) res = NS_ERROR_FAILURE; NS_ENSURE_SUCCESS(res, res); if (aIndent.EqualsLiteral("indent")) { if (isCollapsed) { // have to find a place to put the blockquote nsCOMPtr parent = node; nsCOMPtr topChild = node; nsCOMPtr tmp; while (!CanContainTag(parent, nsGkAtoms::blockquote)) { parent->GetParentNode(getter_AddRefs(tmp)); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); topChild = parent; parent = tmp; } if (parent != node) { // we need to split up to the child of parent res = SplitNodeDeep(topChild, node, offset, &offset); NS_ENSURE_SUCCESS(res, res); } // make a blockquote nsCOMPtr newBQ; res = CreateNode(NS_LITERAL_STRING("blockquote"), parent, offset, getter_AddRefs(newBQ)); NS_ENSURE_SUCCESS(res, res); // put a space in it so layout will draw the list item res = selection->Collapse(newBQ,0); NS_ENSURE_SUCCESS(res, res); res = InsertText(NS_LITERAL_STRING(" ")); NS_ENSURE_SUCCESS(res, res); // reposition selection to before the space character res = GetStartNodeAndOffset(selection, getter_AddRefs(node), &offset); NS_ENSURE_SUCCESS(res, res); res = selection->Collapse(node,0); NS_ENSURE_SUCCESS(res, res); } } } res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } //TODO: IMPLEMENT ALIGNMENT! NS_IMETHODIMP nsHTMLEditor::Align(const nsAString& aAlignType) { // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsAutoEditBatch beginBatching(this); nsAutoRules beginRulesSniffing(this, kOpAlign, nsIEditor::eNext); nsCOMPtr node; bool cancel, handled; // Find out if the selection is collapsed: nsCOMPtr selection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsTextRulesInfo ruleInfo(kOpAlign); ruleInfo.alignType = &aAlignType; res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); if (cancel || NS_FAILED(res)) return res; res = mRules->DidDoAction(selection, &ruleInfo, res); return res; } NS_IMETHODIMP nsHTMLEditor::GetElementOrParentByTagName(const nsAString& aTagName, nsIDOMNode *aNode, nsIDOMElement** aReturn) { if (aTagName.IsEmpty() || !aReturn ) return NS_ERROR_NULL_POINTER; nsresult res = NS_OK; nsCOMPtr currentNode; if (aNode) currentNode = aNode; else { // If no node supplied, get it from anchor node of current selection nsCOMPtrselection; res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsCOMPtr anchorNode; res = selection->GetAnchorNode(getter_AddRefs(anchorNode)); if(NS_FAILED(res)) return res; NS_ENSURE_TRUE(anchorNode, NS_ERROR_FAILURE); // Try to get the actual selected node bool hasChildren = false; anchorNode->HasChildNodes(&hasChildren); if (hasChildren) { PRInt32 offset; res = selection->GetAnchorOffset(&offset); if(NS_FAILED(res)) return res; currentNode = nsEditor::GetChildAt(anchorNode, offset); } // anchor node is probably a text node - just use that if (!currentNode) currentNode = anchorNode; } nsAutoString TagName(aTagName); ToLowerCase(TagName); bool getLink = IsLinkTag(TagName); bool getNamedAnchor = IsNamedAnchorTag(TagName); if ( getLink || getNamedAnchor) { TagName.AssignLiteral("a"); } bool findTableCell = TagName.EqualsLiteral("td"); bool findList = TagName.EqualsLiteral("list"); // default is null - no element found *aReturn = nsnull; nsCOMPtr parent; bool bNodeFound = false; while (true) { nsAutoString currentTagName; // Test if we have a link (an anchor with href set) if ( (getLink && nsHTMLEditUtils::IsLink(currentNode)) || (getNamedAnchor && nsHTMLEditUtils::IsNamedAnchor(currentNode)) ) { bNodeFound = true; break; } else { if (findList) { // Match "ol", "ul", or "dl" for lists if (nsHTMLEditUtils::IsList(currentNode)) goto NODE_FOUND; } else if (findTableCell) { // Table cells are another special case: // Match either "td" or "th" for them if (nsHTMLEditUtils::IsTableCell(currentNode)) goto NODE_FOUND; } else { currentNode->GetNodeName(currentTagName); if (currentTagName.Equals(TagName, nsCaseInsensitiveStringComparator())) { NODE_FOUND: bNodeFound = true; break; } } } // Search up the parent chain // We should never fail because of root test below, but lets be safe // XXX: ERROR_HANDLING error return code lost if (NS_FAILED(currentNode->GetParentNode(getter_AddRefs(parent))) || !parent) break; // Stop searching if parent is a body tag nsAutoString parentTagName; parent->GetNodeName(parentTagName); // Note: Originally used IsRoot to stop at table cells, // but that's too messy when you are trying to find the parent table if(parentTagName.LowerCaseEqualsLiteral("body")) break; currentNode = parent; } if (bNodeFound) { nsCOMPtr currentElement = do_QueryInterface(currentNode); if (currentElement) { *aReturn = currentElement; // Getters must addref NS_ADDREF(*aReturn); } } else res = NS_EDITOR_ELEMENT_NOT_FOUND; return res; } NS_IMETHODIMP nsHTMLEditor::GetSelectedElement(const nsAString& aTagName, nsIDOMElement** aReturn) { NS_ENSURE_TRUE(aReturn , NS_ERROR_NULL_POINTER); // default is null - no element found *aReturn = nsnull; // First look for a single element in selection nsCOMPtrselection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsCOMPtr selPriv(do_QueryInterface(selection)); bool bNodeFound = false; res=NS_ERROR_NOT_INITIALIZED; bool isCollapsed; selection->GetIsCollapsed(&isCollapsed); nsAutoString domTagName; nsAutoString TagName(aTagName); ToLowerCase(TagName); // Empty string indicates we should match any element tag bool anyTag = (TagName.IsEmpty()); bool isLinkTag = IsLinkTag(TagName); bool isNamedAnchorTag = IsNamedAnchorTag(TagName); nsCOMPtr selectedElement; nsCOMPtr range; res = selection->GetRangeAt(0, getter_AddRefs(range)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr startParent; PRInt32 startOffset, endOffset; res = range->GetStartContainer(getter_AddRefs(startParent)); NS_ENSURE_SUCCESS(res, res); res = range->GetStartOffset(&startOffset); NS_ENSURE_SUCCESS(res, res); nsCOMPtr endParent; res = range->GetEndContainer(getter_AddRefs(endParent)); NS_ENSURE_SUCCESS(res, res); res = range->GetEndOffset(&endOffset); NS_ENSURE_SUCCESS(res, res); // Optimization for a single selected element if (startParent && startParent == endParent && (endOffset-startOffset) == 1) { nsCOMPtr selectedNode = GetChildAt(startParent, startOffset); NS_ENSURE_SUCCESS(res, NS_OK); if (selectedNode) { selectedNode->GetNodeName(domTagName); ToLowerCase(domTagName); // Test for appropriate node type requested if (anyTag || (TagName == domTagName) || (isLinkTag && nsHTMLEditUtils::IsLink(selectedNode)) || (isNamedAnchorTag && nsHTMLEditUtils::IsNamedAnchor(selectedNode))) { bNodeFound = true; selectedElement = do_QueryInterface(selectedNode); } } } if (!bNodeFound) { if (isLinkTag) { // Link tag is a special case - we return the anchor node // found for any selection that is totally within a link, // included a collapsed selection (just a caret in a link) nsCOMPtr anchorNode; res = selection->GetAnchorNode(getter_AddRefs(anchorNode)); NS_ENSURE_SUCCESS(res, res); PRInt32 anchorOffset = -1; if (anchorNode) selection->GetAnchorOffset(&anchorOffset); nsCOMPtr focusNode; res = selection->GetFocusNode(getter_AddRefs(focusNode)); NS_ENSURE_SUCCESS(res, res); PRInt32 focusOffset = -1; if (focusNode) selection->GetFocusOffset(&focusOffset); // Link node must be the same for both ends of selection if (NS_SUCCEEDED(res) && anchorNode) { #ifdef DEBUG_cmanske { nsAutoString name; anchorNode->GetNodeName(name); printf("GetSelectedElement: Anchor node of selection: "); wprintf(name.get()); printf(" Offset: %d\n", anchorOffset); focusNode->GetNodeName(name); printf("Focus node of selection: "); wprintf(name.get()); printf(" Offset: %d\n", focusOffset); } #endif nsCOMPtr parentLinkOfAnchor; res = GetElementOrParentByTagName(NS_LITERAL_STRING("href"), anchorNode, getter_AddRefs(parentLinkOfAnchor)); // XXX: ERROR_HANDLING can parentLinkOfAnchor be null? if (NS_SUCCEEDED(res) && parentLinkOfAnchor) { if (isCollapsed) { // We have just a caret in the link bNodeFound = true; } else if(focusNode) { // Link node must be the same for both ends of selection nsCOMPtr parentLinkOfFocus; res = GetElementOrParentByTagName(NS_LITERAL_STRING("href"), focusNode, getter_AddRefs(parentLinkOfFocus)); if (NS_SUCCEEDED(res) && parentLinkOfFocus == parentLinkOfAnchor) bNodeFound = true; } // We found a link node parent if (bNodeFound) { // GetElementOrParentByTagName addref'd this, so we don't need to do it here *aReturn = parentLinkOfAnchor; NS_IF_ADDREF(*aReturn); return NS_OK; } } else if (anchorOffset >= 0) // Check if link node is the only thing selected { nsCOMPtr anchorChild; anchorChild = GetChildAt(anchorNode,anchorOffset); if (anchorChild && nsHTMLEditUtils::IsLink(anchorChild) && (anchorNode == focusNode) && focusOffset == (anchorOffset+1)) { selectedElement = do_QueryInterface(anchorChild); bNodeFound = true; } } } } if (!isCollapsed) // Don't bother to examine selection if it is collapsed { nsCOMPtr enumerator; res = selPriv->GetEnumerator(getter_AddRefs(enumerator)); if (NS_SUCCEEDED(res)) { if(!enumerator) return NS_ERROR_NULL_POINTER; enumerator->First(); nsCOMPtr currentItem; res = enumerator->CurrentItem(getter_AddRefs(currentItem)); if ((NS_SUCCEEDED(res)) && currentItem) { nsCOMPtr currange( do_QueryInterface(currentItem) ); nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &res); NS_ENSURE_SUCCESS(res, res); iter->Init(currange); // loop through the content iterator for each content node while (!iter->IsDone()) { // Query interface to cast nsIContent to nsIDOMNode // then get tagType to compare to aTagName // Clone node of each desired type and append it to the aDomFrag selectedElement = do_QueryInterface(iter->GetCurrentNode()); if (selectedElement) { // If we already found a node, then we have another element, // thus there's not just one element selected if (bNodeFound) { bNodeFound = false; break; } selectedElement->GetNodeName(domTagName); ToLowerCase(domTagName); if (anyTag) { // Get name of first selected element selectedElement->GetTagName(TagName); ToLowerCase(TagName); anyTag = false; } // The "A" tag is a pain, // used for both link(href is set) and "Named Anchor" nsCOMPtr selectedNode = do_QueryInterface(selectedElement); if ( (isLinkTag && nsHTMLEditUtils::IsLink(selectedNode)) || (isNamedAnchorTag && nsHTMLEditUtils::IsNamedAnchor(selectedNode)) ) { bNodeFound = true; } else if (TagName == domTagName) { // All other tag names are handled here bNodeFound = true; } if (!bNodeFound) { // Check if node we have is really part of the selection??? break; } } iter->Next(); } } else { // Should never get here? isCollapsed = true; printf("isCollapsed was FALSE, but no elements found in selection\n"); } } else { printf("Could not create enumerator for GetSelectionProperties\n"); } } } if (bNodeFound) { *aReturn = selectedElement; if (selectedElement) { // Getters must addref NS_ADDREF(*aReturn); } } else res = NS_EDITOR_ELEMENT_NOT_FOUND; return res; } NS_IMETHODIMP nsHTMLEditor::CreateElementWithDefaults(const nsAString& aTagName, nsIDOMElement** aReturn) { nsresult res=NS_ERROR_NOT_INITIALIZED; if (aReturn) *aReturn = nsnull; // NS_ENSURE_TRUE(aTagName && aReturn, NS_ERROR_NULL_POINTER); NS_ENSURE_TRUE(!aTagName.IsEmpty() && aReturn, NS_ERROR_NULL_POINTER); nsAutoString TagName(aTagName); ToLowerCase(TagName); nsAutoString realTagName; if (IsLinkTag(TagName) || IsNamedAnchorTag(TagName)) { realTagName.AssignLiteral("a"); } else { realTagName = TagName; } //We don't use editor's CreateElement because we don't want to // go through the transaction system nsCOMPtrnewElement; nsCOMPtr newContent; nsCOMPtr doc = do_QueryReferent(mDocWeak); NS_ENSURE_TRUE(doc, NS_ERROR_NOT_INITIALIZED); //new call to use instead to get proper HTML element, bug# 39919 res = CreateHTMLContent(realTagName, getter_AddRefs(newContent)); newElement = do_QueryInterface(newContent); if (NS_FAILED(res) || !newElement) return NS_ERROR_FAILURE; // Mark the new element dirty, so it will be formatted newElement->SetAttribute(NS_LITERAL_STRING("_moz_dirty"), EmptyString()); // Set default values for new elements if (TagName.EqualsLiteral("table")) { res = newElement->SetAttribute(NS_LITERAL_STRING("cellpadding"),NS_LITERAL_STRING("2")); NS_ENSURE_SUCCESS(res, res); res = newElement->SetAttribute(NS_LITERAL_STRING("cellspacing"),NS_LITERAL_STRING("2")); NS_ENSURE_SUCCESS(res, res); res = newElement->SetAttribute(NS_LITERAL_STRING("border"),NS_LITERAL_STRING("1")); } else if (TagName.EqualsLiteral("td")) { res = SetAttributeOrEquivalent(newElement, NS_LITERAL_STRING("valign"), NS_LITERAL_STRING("top"), true); } // ADD OTHER TAGS HERE if (NS_SUCCEEDED(res)) { *aReturn = newElement; // Getters must addref NS_ADDREF(*aReturn); } return res; } NS_IMETHODIMP nsHTMLEditor::InsertLinkAroundSelection(nsIDOMElement* aAnchorElement) { nsresult res=NS_ERROR_NULL_POINTER; nsCOMPtr selection; NS_ENSURE_TRUE(aAnchorElement, NS_ERROR_NULL_POINTER); // We must have a real selection res = GetSelection(getter_AddRefs(selection)); if (!selection) { res = NS_ERROR_NULL_POINTER; } NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); bool isCollapsed; res = selection->GetIsCollapsed(&isCollapsed); if (NS_FAILED(res)) isCollapsed = true; if (isCollapsed) { printf("InsertLinkAroundSelection called but there is no selection!!!\n"); res = NS_OK; } else { // Be sure we were given an anchor element nsCOMPtr anchor = do_QueryInterface(aAnchorElement); if (anchor) { nsAutoString href; res = anchor->GetHref(href); NS_ENSURE_SUCCESS(res, res); if (!href.IsEmpty()) { nsAutoEditBatch beginBatching(this); // Set all attributes found on the supplied anchor element nsCOMPtr attrMap; aAnchorElement->GetAttributes(getter_AddRefs(attrMap)); NS_ENSURE_TRUE(attrMap, NS_ERROR_FAILURE); PRUint32 count, i; attrMap->GetLength(&count); nsAutoString name, value; for (i = 0; i < count; i++) { nsCOMPtr attrNode; res = attrMap->Item(i, getter_AddRefs(attrNode)); NS_ENSURE_SUCCESS(res, res); if (attrNode) { nsCOMPtr attribute = do_QueryInterface(attrNode); if (attribute) { // We must clear the string buffers // because GetName, GetValue appends to previous string! name.Truncate(); value.Truncate(); res = attribute->GetName(name); NS_ENSURE_SUCCESS(res, res); res = attribute->GetValue(value); NS_ENSURE_SUCCESS(res, res); res = SetInlineProperty(nsEditProperty::a, name, value); NS_ENSURE_SUCCESS(res, res); } } } } } } return res; } NS_IMETHODIMP nsHTMLEditor::SetHTMLBackgroundColor(const nsAString& aColor) { NS_PRECONDITION(mDocWeak, "Missing Editor DOM Document"); // Find a selected or enclosing table element to set background on nsCOMPtr element; PRInt32 selectedCount; nsAutoString tagName; nsresult res = GetSelectedOrParentTableElement(tagName, &selectedCount, getter_AddRefs(element)); NS_ENSURE_SUCCESS(res, res); bool setColor = !aColor.IsEmpty(); NS_NAMED_LITERAL_STRING(bgcolor, "bgcolor"); if (element) { if (selectedCount > 0) { // Traverse all selected cells nsCOMPtr cell; res = GetFirstSelectedCell(nsnull, getter_AddRefs(cell)); if (NS_SUCCEEDED(res) && cell) { while(cell) { if (setColor) res = SetAttribute(cell, bgcolor, aColor); else res = RemoveAttribute(cell, bgcolor); if (NS_FAILED(res)) break; GetNextSelectedCell(nsnull, getter_AddRefs(cell)); }; return res; } } // If we failed to find a cell, fall through to use originally-found element } else { // No table element -- set the background color on the body tag element = do_QueryInterface(GetRoot()); NS_ENSURE_TRUE(element, NS_ERROR_NULL_POINTER); } // Use the editor method that goes through the transaction system if (setColor) res = SetAttribute(element, bgcolor, aColor); else res = RemoveAttribute(element, bgcolor); return res; } NS_IMETHODIMP nsHTMLEditor::SetBodyAttribute(const nsAString& aAttribute, const nsAString& aValue) { // TODO: Check selection for Cell, Row, Column or table and do color on appropriate level NS_ASSERTION(mDocWeak, "Missing Editor DOM Document"); // Set the background color attribute on the body tag nsCOMPtr bodyElement = do_QueryInterface(GetRoot()); NS_ENSURE_TRUE(bodyElement, NS_ERROR_NULL_POINTER); // Use the editor method that goes through the transaction system return SetAttribute(bodyElement, aAttribute, aValue); } NS_IMETHODIMP nsHTMLEditor::GetLinkedObjects(nsISupportsArray** aNodeList) { NS_ENSURE_TRUE(aNodeList, NS_ERROR_NULL_POINTER); nsresult res; res = NS_NewISupportsArray(aNodeList); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(*aNodeList, NS_ERROR_NULL_POINTER); nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &res); NS_ENSURE_TRUE(iter, NS_ERROR_NULL_POINTER); if ((NS_SUCCEEDED(res))) { nsCOMPtr doc = GetDocument(); NS_ENSURE_TRUE(doc, NS_ERROR_UNEXPECTED); iter->Init(doc->GetRootElement()); // loop through the content iterator for each content node while (!iter->IsDone()) { nsCOMPtr node (do_QueryInterface(iter->GetCurrentNode())); if (node) { // Let nsURIRefObject make the hard decisions: nsCOMPtr refObject; res = NS_NewHTMLURIRefObject(getter_AddRefs(refObject), node); if (NS_SUCCEEDED(res)) { nsCOMPtr isupp (do_QueryInterface(refObject)); (*aNodeList)->AppendElement(isupp); } } iter->Next(); } } return NS_OK; } NS_IMETHODIMP nsHTMLEditor::AddStyleSheet(const nsAString &aURL) { // Enable existing sheet if already loaded. if (EnableExistingStyleSheet(aURL)) return NS_OK; // Lose the previously-loaded sheet so there's nothing to replace // This pattern is different from Override methods because // we must wait to remove mLastStyleSheetURL and add new sheet // at the same time (in StyleSheetLoaded callback) so they are undoable together mLastStyleSheetURL.Truncate(); return ReplaceStyleSheet(aURL); } NS_IMETHODIMP nsHTMLEditor::ReplaceStyleSheet(const nsAString& aURL) { // Enable existing sheet if already loaded. if (EnableExistingStyleSheet(aURL)) { // Disable last sheet if not the same as new one if (!mLastStyleSheetURL.IsEmpty() && !mLastStyleSheetURL.Equals(aURL)) return EnableStyleSheet(mLastStyleSheetURL, false); return NS_OK; } // Make sure the pres shell doesn't disappear during the load. NS_ENSURE_TRUE(mDocWeak, NS_ERROR_NOT_INITIALIZED); nsCOMPtr ps = GetPresShell(); NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED); nsCOMPtr uaURI; nsresult rv = NS_NewURI(getter_AddRefs(uaURI), aURL); NS_ENSURE_SUCCESS(rv, rv); return ps->GetDocument()->CSSLoader()-> LoadSheet(uaURI, nsnull, EmptyCString(), this); } NS_IMETHODIMP nsHTMLEditor::RemoveStyleSheet(const nsAString &aURL) { nsRefPtr sheet; nsresult rv = GetStyleSheetForURL(aURL, getter_AddRefs(sheet)); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_TRUE(sheet, NS_ERROR_UNEXPECTED); nsRefPtr txn; rv = CreateTxnForRemoveStyleSheet(sheet, getter_AddRefs(txn)); if (!txn) rv = NS_ERROR_NULL_POINTER; if (NS_SUCCEEDED(rv)) { rv = DoTransaction(txn); if (NS_SUCCEEDED(rv)) mLastStyleSheetURL.Truncate(); // forget it // Remove it from our internal list rv = RemoveStyleSheetFromList(aURL); } return rv; } NS_IMETHODIMP nsHTMLEditor::AddOverrideStyleSheet(const nsAString& aURL) { // Enable existing sheet if already loaded. if (EnableExistingStyleSheet(aURL)) return NS_OK; // Make sure the pres shell doesn't disappear during the load. nsCOMPtr ps = GetPresShell(); NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED); nsCOMPtr uaURI; nsresult rv = NS_NewURI(getter_AddRefs(uaURI), aURL); NS_ENSURE_SUCCESS(rv, rv); // We MUST ONLY load synchronous local files (no @import) // XXXbz Except this will actually try to load remote files // synchronously, of course.. nsRefPtr sheet; // Editor override style sheets may want to style Gecko anonymous boxes rv = ps->GetDocument()->CSSLoader()-> LoadSheetSync(uaURI, true, true, getter_AddRefs(sheet)); // Synchronous loads should ALWAYS return completed NS_ENSURE_TRUE(sheet, NS_ERROR_NULL_POINTER); // Add the override style sheet // (This checks if already exists) ps->AddOverrideStyleSheet(sheet); ps->ReconstructStyleData(); // Save as the last-loaded sheet mLastOverrideStyleSheetURL = aURL; //Add URL and style sheet to our lists return AddNewStyleSheetToList(aURL, sheet); } NS_IMETHODIMP nsHTMLEditor::ReplaceOverrideStyleSheet(const nsAString& aURL) { // Enable existing sheet if already loaded. if (EnableExistingStyleSheet(aURL)) { // Disable last sheet if not the same as new one if (!mLastOverrideStyleSheetURL.IsEmpty() && !mLastOverrideStyleSheetURL.Equals(aURL)) return EnableStyleSheet(mLastOverrideStyleSheetURL, false); return NS_OK; } // Remove the previous sheet if (!mLastOverrideStyleSheetURL.IsEmpty()) RemoveOverrideStyleSheet(mLastOverrideStyleSheetURL); return AddOverrideStyleSheet(aURL); } // Do NOT use transaction system for override style sheets NS_IMETHODIMP nsHTMLEditor::RemoveOverrideStyleSheet(const nsAString &aURL) { nsRefPtr sheet; GetStyleSheetForURL(aURL, getter_AddRefs(sheet)); // Make sure we remove the stylesheet from our internal list in all // cases. nsresult rv = RemoveStyleSheetFromList(aURL); NS_ENSURE_TRUE(sheet, NS_OK); /// Don't fail if sheet not found NS_ENSURE_TRUE(mDocWeak, NS_ERROR_NOT_INITIALIZED); nsCOMPtr ps = GetPresShell(); NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED); ps->RemoveOverrideStyleSheet(sheet); ps->ReconstructStyleData(); // Remove it from our internal list return rv; } NS_IMETHODIMP nsHTMLEditor::EnableStyleSheet(const nsAString &aURL, bool aEnable) { nsRefPtr sheet; nsresult rv = GetStyleSheetForURL(aURL, getter_AddRefs(sheet)); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_TRUE(sheet, NS_OK); // Don't fail if sheet not found // Ensure the style sheet is owned by our document. nsCOMPtr doc = do_QueryReferent(mDocWeak); sheet->SetOwningDocument(doc); return sheet->SetDisabled(!aEnable); } bool nsHTMLEditor::EnableExistingStyleSheet(const nsAString &aURL) { nsRefPtr sheet; nsresult rv = GetStyleSheetForURL(aURL, getter_AddRefs(sheet)); NS_ENSURE_SUCCESS(rv, false); // Enable sheet if already loaded. if (sheet) { // Ensure the style sheet is owned by our document. nsCOMPtr doc = do_QueryReferent(mDocWeak); sheet->SetOwningDocument(doc); sheet->SetDisabled(false); return true; } return false; } nsresult nsHTMLEditor::AddNewStyleSheetToList(const nsAString &aURL, nsCSSStyleSheet *aStyleSheet) { PRUint32 countSS = mStyleSheets.Length(); PRUint32 countU = mStyleSheetURLs.Length(); if (countSS != countU) return NS_ERROR_UNEXPECTED; if (!mStyleSheetURLs.AppendElement(aURL)) return NS_ERROR_UNEXPECTED; return mStyleSheets.AppendElement(aStyleSheet) ? NS_OK : NS_ERROR_UNEXPECTED; } nsresult nsHTMLEditor::RemoveStyleSheetFromList(const nsAString &aURL) { // is it already in the list? PRUint32 foundIndex; foundIndex = mStyleSheetURLs.IndexOf(aURL); if (foundIndex == mStyleSheetURLs.NoIndex) return NS_ERROR_FAILURE; // Attempt both removals; if one fails there's not much we can do. mStyleSheets.RemoveElementAt(foundIndex); mStyleSheetURLs.RemoveElementAt(foundIndex); return NS_OK; } NS_IMETHODIMP nsHTMLEditor::GetStyleSheetForURL(const nsAString &aURL, nsCSSStyleSheet **aStyleSheet) { NS_ENSURE_ARG_POINTER(aStyleSheet); *aStyleSheet = 0; // is it already in the list? PRUint32 foundIndex; foundIndex = mStyleSheetURLs.IndexOf(aURL); if (foundIndex == mStyleSheetURLs.NoIndex) return NS_OK; //No sheet -- don't fail! *aStyleSheet = mStyleSheets[foundIndex]; NS_ENSURE_TRUE(*aStyleSheet, NS_ERROR_FAILURE); NS_ADDREF(*aStyleSheet); return NS_OK; } NS_IMETHODIMP nsHTMLEditor::GetURLForStyleSheet(nsCSSStyleSheet *aStyleSheet, nsAString &aURL) { // is it already in the list? PRInt32 foundIndex = mStyleSheets.IndexOf(aStyleSheet); // Don't fail if we don't find it in our list // Note: mStyleSheets is nsCOMArray, so its IndexOf() method // returns -1 on failure. if (foundIndex == -1) return NS_OK; // Found it in the list! aURL = mStyleSheetURLs[foundIndex]; return NS_OK; } /* * nsIEditorMailSupport methods */ NS_IMETHODIMP nsHTMLEditor::GetEmbeddedObjects(nsISupportsArray** aNodeList) { NS_ENSURE_TRUE(aNodeList, NS_ERROR_NULL_POINTER); nsresult rv = NS_NewISupportsArray(aNodeList); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_TRUE(*aNodeList, NS_ERROR_NULL_POINTER); nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &rv); NS_ENSURE_TRUE(iter, NS_ERROR_NULL_POINTER); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr doc = GetDocument(); NS_ENSURE_TRUE(doc, NS_ERROR_UNEXPECTED); iter->Init(doc->GetRootElement()); // Loop through the content iterator for each content node. while (!iter->IsDone()) { nsINode* node = iter->GetCurrentNode(); if (node->IsElement()) { dom::Element* element = node->AsElement(); // See if it's an image or an embed and also include all links. // Let mail decide which link to send or not if (element->IsHTML(nsGkAtoms::img) || element->IsHTML(nsGkAtoms::embed) || element->IsHTML(nsGkAtoms::a) || (element->IsHTML(nsGkAtoms::body) && element->HasAttr(kNameSpaceID_None, nsGkAtoms::background))) { nsCOMPtr domNode = do_QueryInterface(node); (*aNodeList)->AppendElement(domNode); } } iter->Next(); } return rv; } NS_IMETHODIMP nsHTMLEditor::DeleteNode(nsIDOMNode* aNode) { // do nothing if the node is read-only nsCOMPtr content = do_QueryInterface(aNode); if (!IsModifiableNode(aNode) && !IsMozEditorBogusNode(content)) { return NS_ERROR_FAILURE; } nsCOMPtr selectAllNode = FindUserSelectAllNode(aNode); if (selectAllNode) { return nsEditor::DeleteNode(selectAllNode); } return nsEditor::DeleteNode(aNode); } NS_IMETHODIMP nsHTMLEditor::DeleteText(nsIDOMCharacterData *aTextNode, PRUint32 aOffset, PRUint32 aLength) { // do nothing if the node is read-only if (!IsModifiableNode(aTextNode)) { return NS_ERROR_FAILURE; } nsCOMPtr selectAllNode = FindUserSelectAllNode(aTextNode); if (selectAllNode) { return nsEditor::DeleteNode(selectAllNode); } return nsEditor::DeleteText(aTextNode, aOffset, aLength); } NS_IMETHODIMP nsHTMLEditor::InsertTextImpl(const nsAString& aStringToInsert, nsCOMPtr *aInOutNode, PRInt32 *aInOutOffset, nsIDOMDocument *aDoc) { // do nothing if the node is read-only if (!IsModifiableNode(*aInOutNode)) { return NS_ERROR_FAILURE; } return nsEditor::InsertTextImpl(aStringToInsert, aInOutNode, aInOutOffset, aDoc); } void nsHTMLEditor::ContentAppended(nsIDocument *aDocument, nsIContent* aContainer, nsIContent* aFirstNewContent, PRInt32 aIndexInContainer) { ContentInserted(aDocument, aContainer, aFirstNewContent, aIndexInContainer); } void nsHTMLEditor::ContentInserted(nsIDocument *aDocument, nsIContent* aContainer, nsIContent* aChild, PRInt32 aIndexInContainer) { if (!aChild) { return; } nsCOMPtr kungFuDeathGrip(this); if (ShouldReplaceRootElement()) { ResetRootElementAndEventTarget(); } // We don't need to handle our own modifications else if (!mAction && (aContainer ? aContainer->IsEditable() : aDocument->IsEditable())) { if (IsMozEditorBogusNode(aChild)) { // Ignore insertion of the bogus node return; } mRules->DocumentModified(); // Update spellcheck for only the newly-inserted node (bug 743819) if (mInlineSpellChecker) { nsRefPtr range = new nsRange(); nsresult res = range->Set(aContainer, aIndexInContainer, aContainer, aIndexInContainer + 1); if (NS_SUCCEEDED(res)) { mInlineSpellChecker->SpellCheckRange(range); } } } } void nsHTMLEditor::ContentRemoved(nsIDocument *aDocument, nsIContent* aContainer, nsIContent* aChild, PRInt32 aIndexInContainer, nsIContent* aPreviousSibling) { nsCOMPtr kungFuDeathGrip(this); if (SameCOMIdentity(aChild, mRootElement)) { ResetRootElementAndEventTarget(); } // We don't need to handle our own modifications else if (!mAction && (aContainer ? aContainer->IsEditable() : aDocument->IsEditable())) { if (aChild && IsMozEditorBogusNode(aChild)) { // Ignore removal of the bogus node return; } mRules->DocumentModified(); } } /* This routine examines aNode and its ancestors looking for any node which has the -moz-user-select: all style lit. Return the highest such ancestor. */ already_AddRefed nsHTMLEditor::FindUserSelectAllNode(nsIDOMNode* aNode) { nsCOMPtr node = aNode; nsCOMPtr root = do_QueryInterface(GetRoot()); if (!nsEditorUtils::IsDescendantOf(aNode, root)) return nsnull; nsCOMPtr resultNode; // starts out empty nsAutoString mozUserSelectValue; while (node) { // retrieve the computed style of -moz-user-select for node mHTMLCSSUtils->GetComputedProperty(node, nsEditProperty::cssMozUserSelect, mozUserSelectValue); if (mozUserSelectValue.EqualsLiteral("all")) { resultNode = node; } if (node != root) { nsCOMPtr tmp; node->GetParentNode(getter_AddRefs(tmp)); node = tmp; } else { node = nsnull; } } return resultNode.forget(); } NS_IMETHODIMP_(bool) nsHTMLEditor::IsModifiableNode(nsIDOMNode *aNode) { nsCOMPtr node = do_QueryInterface(aNode); return IsModifiableNode(node); } bool nsHTMLEditor::IsModifiableNode(nsINode *aNode) { return !aNode || aNode->IsEditable(); } static nsresult SetSelectionAroundHeadChildren(nsCOMPtr aSelection, nsWeakPtr aDocWeak) { nsresult res = NS_OK; // Set selection around node nsCOMPtr doc = do_QueryReferent(aDocWeak); NS_ENSURE_TRUE(doc, NS_ERROR_NOT_INITIALIZED); nsCOMPtrnodeList; res = doc->GetElementsByTagName(NS_LITERAL_STRING("head"), getter_AddRefs(nodeList)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(nodeList, NS_ERROR_NULL_POINTER); PRUint32 count; nodeList->GetLength(&count); if (count < 1) return NS_ERROR_FAILURE; nsCOMPtr headNode; res = nodeList->Item(0, getter_AddRefs(headNode)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(headNode, NS_ERROR_NULL_POINTER); // Collapse selection to before first child of the head, res = aSelection->Collapse(headNode, 0); NS_ENSURE_SUCCESS(res, res); // then extend it to just after nsCOMPtr childNodes; res = headNode->GetChildNodes(getter_AddRefs(childNodes)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(childNodes, NS_ERROR_NULL_POINTER); PRUint32 childCount; childNodes->GetLength(&childCount); return aSelection->Extend(headNode, childCount+1); } NS_IMETHODIMP nsHTMLEditor::GetHeadContentsAsHTML(nsAString& aOutputString) { nsCOMPtr selection; nsresult res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); // Save current selection nsAutoSelectionReset selectionResetter(selection, this); res = SetSelectionAroundHeadChildren(selection, mDocWeak); NS_ENSURE_SUCCESS(res, res); res = OutputToString(NS_LITERAL_STRING("text/html"), nsIDocumentEncoder::OutputSelectionOnly, aOutputString); if (NS_SUCCEEDED(res)) { // Selection always includes , // so terminate there nsReadingIterator findIter,endFindIter; aOutputString.BeginReading(findIter); aOutputString.EndReading(endFindIter); //counting on our parser to always lower case!!! if (CaseInsensitiveFindInReadable(NS_LITERAL_STRING(" beginIter; aOutputString.BeginReading(beginIter); PRInt32 offset = Distance(beginIter, findIter);//get the distance nsWritingIterator writeIter; aOutputString.BeginWriting(writeIter); // Ensure the string ends in a newline PRUnichar newline ('\n'); findIter.advance(-1); if (offset ==0 || (offset >0 && (*findIter) != newline)) //check for 0 { writeIter.advance(offset); *writeIter = newline; aOutputString.Truncate(offset+1); } } } return res; } NS_IMETHODIMP nsHTMLEditor::DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed) { #ifdef DEBUG NS_ENSURE_TRUE(outNumTests && outNumTestsFailed, NS_ERROR_NULL_POINTER); TextEditorTest *tester = new TextEditorTest(); NS_ENSURE_TRUE(tester, NS_ERROR_OUT_OF_MEMORY); tester->Run(this, outNumTests, outNumTestsFailed); delete tester; return NS_OK; #else return NS_ERROR_NOT_IMPLEMENTED; #endif } NS_IMETHODIMP nsHTMLEditor::StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate, nsresult aStatus) { nsresult rv = NS_OK; nsAutoEditBatch batchIt(this); if (!mLastStyleSheetURL.IsEmpty()) RemoveStyleSheet(mLastStyleSheetURL); nsRefPtr txn; rv = CreateTxnForAddStyleSheet(aSheet, getter_AddRefs(txn)); if (!txn) rv = NS_ERROR_NULL_POINTER; if (NS_SUCCEEDED(rv)) { rv = DoTransaction(txn); if (NS_SUCCEEDED(rv)) { // Get the URI, then url spec from the sheet nsCAutoString spec; rv = aSheet->GetSheetURI()->GetSpec(spec); if (NS_SUCCEEDED(rv)) { // Save it so we can remove before applying the next one mLastStyleSheetURL.AssignWithConversion(spec.get()); // Also save in our arrays of urls and sheets AddNewStyleSheetToList(mLastStyleSheetURL, aSheet); } } } return NS_OK; } /** All editor operations which alter the doc should be prefaced * with a call to StartOperation, naming the action and direction */ NS_IMETHODIMP nsHTMLEditor::StartOperation(OperationID opID, nsIEditor::EDirection aDirection) { // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsEditor::StartOperation(opID, aDirection); // will set mAction, mDirection if (mRules) return mRules->BeforeEdit(mAction, mDirection); return NS_OK; } /** All editor operations which alter the doc should be followed * with a call to EndOperation */ NS_IMETHODIMP nsHTMLEditor::EndOperation() { // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); // post processing nsresult res = NS_OK; if (mRules) res = mRules->AfterEdit(mAction, mDirection); nsEditor::EndOperation(); // will clear mAction, mDirection return res; } bool nsHTMLEditor::TagCanContainTag(nsIAtom* aParentTag, nsIAtom* aChildTag) { MOZ_ASSERT(aParentTag && aChildTag); nsIParserService* parserService = nsContentUtils::GetParserService(); PRInt32 childTagEnum; // XXX Should this handle #cdata-section too? if (aChildTag == nsGkAtoms::textTagName) { childTagEnum = eHTMLTag_text; } else { childTagEnum = parserService->HTMLAtomTagToId(aChildTag); } PRInt32 parentTagEnum = parserService->HTMLAtomTagToId(aParentTag); NS_ASSERTION(parentTagEnum < NS_HTML_TAG_MAX, "Fix the caller, this type of node can never contain children."); return nsHTMLEditUtils::CanContain(parentTagEnum, childTagEnum); } bool nsHTMLEditor::IsContainer(nsINode* aNode) { nsCOMPtr node = do_QueryInterface(aNode); return IsContainer(node); } bool nsHTMLEditor::IsContainer(nsIDOMNode *aNode) { if (!aNode) { return false; } nsAutoString stringTag; nsresult rv = aNode->GetNodeName(stringTag); NS_ENSURE_SUCCESS(rv, false); PRInt32 tagEnum; // XXX Should this handle #cdata-section too? if (stringTag.EqualsLiteral("#text")) { tagEnum = eHTMLTag_text; } else { tagEnum = nsContentUtils::GetParserService()->HTMLStringTagToId(stringTag); } return nsHTMLEditUtils::IsContainer(tagEnum); } NS_IMETHODIMP nsHTMLEditor::SelectEntireDocument(nsISelection *aSelection) { if (!aSelection || !mRules) { return NS_ERROR_NULL_POINTER; } // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); // get editor root node nsCOMPtr rootElement = do_QueryInterface(GetRoot()); // is doc empty? bool bDocIsEmpty; nsresult res = mRules->DocumentIsEmpty(&bDocIsEmpty); NS_ENSURE_SUCCESS(res, res); if (bDocIsEmpty) { // if its empty dont select entire doc - that would select the bogus node return aSelection->Collapse(rootElement, 0); } return nsEditor::SelectEntireDocument(aSelection); } NS_IMETHODIMP nsHTMLEditor::SelectAll() { ForceCompositionEnd(); nsresult rv; nsCOMPtr selCon; rv = GetSelectionController(getter_AddRefs(selCon)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr selection; rv = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr anchorNode; rv = selection->GetAnchorNode(getter_AddRefs(anchorNode)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr anchorContent = do_QueryInterface(anchorNode, &rv); NS_ENSURE_SUCCESS(rv, rv); // If the anchor content has independent selection, we never need to explicitly // select its children. if (anchorContent->HasIndependentSelection()) { nsCOMPtr selPriv = do_QueryInterface(selection); NS_ENSURE_TRUE(selPriv, NS_ERROR_UNEXPECTED); rv = selPriv->SetAncestorLimiter(nsnull); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr rootElement = do_QueryInterface(mRootElement, &rv); NS_ENSURE_SUCCESS(rv, rv); return selection->SelectAllChildren(rootElement); } nsCOMPtr ps = GetPresShell(); nsIContent *rootContent = anchorContent->GetSelectionRootContent(ps); NS_ENSURE_TRUE(rootContent, NS_ERROR_UNEXPECTED); nsCOMPtr rootElement = do_QueryInterface(rootContent, &rv); NS_ENSURE_SUCCESS(rv, rv); return selection->SelectAllChildren(rootElement); } // this will NOT find aAttribute unless aAttribute has a non-null value // so singleton attributes like will not be matched! void nsHTMLEditor::IsTextPropertySetByContent(nsIDOMNode *aNode, nsIAtom *aProperty, const nsAString *aAttribute, const nsAString *aValue, bool &aIsSet, nsAString *outValue) { nsresult result; aIsSet = false; // must be initialized to false for code below to work nsAutoString propName; aProperty->ToString(propName); nsCOMPtrnode = aNode; while (node) { nsCOMPtrelement; element = do_QueryInterface(node); if (element) { nsAutoString tag, value; element->GetTagName(tag); if (propName.Equals(tag, nsCaseInsensitiveStringComparator())) { bool found = false; if (aAttribute && 0!=aAttribute->Length()) { element->GetAttribute(*aAttribute, value); if (outValue) *outValue = value; if (!value.IsEmpty()) { if (!aValue) { found = true; } else { nsString tString(*aValue); if (tString.Equals(value, nsCaseInsensitiveStringComparator())) { found = true; } else { // we found the prop with the attribute, but the value doesn't match break; } } } } else { found = true; } if (found) { aIsSet = true; break; } } } nsCOMPtrtemp; result = node->GetParentNode(getter_AddRefs(temp)); if (NS_SUCCEEDED(result) && temp) { node = temp; } else { node = nsnull; } } } //================================================================ // HTML Editor methods // // Note: Table Editing methods are implemented in nsTableEditor.cpp // bool nsHTMLEditor::SetCaretInTableCell(nsIDOMElement* aElement) { nsCOMPtr element = do_QueryInterface(aElement); if (!element || !element->IsHTML() || !nsHTMLEditUtils::IsTableElement(element) || !IsDescendantOfEditorRoot(element)) { return false; } nsIContent* node = element; while (node->HasChildren()) { node = node->GetFirstChild(); } // Set selection at beginning of the found node nsCOMPtr selection; nsresult rv = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(rv, false); NS_ENSURE_TRUE(selection, false); return NS_SUCCEEDED(selection->CollapseNative(node, 0)); } /////////////////////////////////////////////////////////////////////////// // GetEnclosingTable: find ancestor who is a table, if any // nsCOMPtr nsHTMLEditor::GetEnclosingTable(nsIDOMNode *aNode) { NS_PRECONDITION(aNode, "null node passed to nsHTMLEditor::GetEnclosingTable"); nsCOMPtr tbl, tmp, node = aNode; while (!tbl) { tmp = GetBlockNodeParent(node); if (!tmp) break; if (nsHTMLEditUtils::IsTable(tmp)) tbl = tmp; node = tmp; } return tbl; } /* this method scans the selection for adjacent text nodes * and collapses them into a single text node. * "adjacent" means literally adjacent siblings of the same parent. * Uses nsEditor::JoinNodes so action is undoable. * Should be called within the context of a batch transaction. */ NS_IMETHODIMP nsHTMLEditor::CollapseAdjacentTextNodes(nsIDOMRange *aInRange) { NS_ENSURE_TRUE(aInRange, NS_ERROR_NULL_POINTER); nsAutoTxnsConserveSelection dontSpazMySelection(this); nsTArray textNodes; // we can't actually do anything during iteration, so store the text nodes in an array // don't bother ref counting them because we know we can hold them for the // lifetime of this method // build a list of editable text nodes nsresult result; nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/subtree-content-iterator;1", &result); NS_ENSURE_SUCCESS(result, result); iter->Init(aInRange); while (!iter->IsDone()) { nsINode* node = iter->GetCurrentNode(); if (node->NodeType() == nsIDOMNode::TEXT_NODE && IsEditable(static_cast(node))) { nsCOMPtr domNode = do_QueryInterface(node); textNodes.AppendElement(domNode); } iter->Next(); } // now that I have a list of text nodes, collapse adjacent text nodes // NOTE: assumption that JoinNodes keeps the righthand node while (textNodes.Length() > 1) { // we assume a textNodes entry can't be nsnull nsIDOMNode *leftTextNode = textNodes[0]; nsIDOMNode *rightTextNode = textNodes[1]; NS_ASSERTION(leftTextNode && rightTextNode,"left or rightTextNode null in CollapseAdjacentTextNodes"); // get the prev sibling of the right node, and see if its leftTextNode nsCOMPtr prevSibOfRightNode; result = rightTextNode->GetPreviousSibling(getter_AddRefs(prevSibOfRightNode)); NS_ENSURE_SUCCESS(result, result); if (prevSibOfRightNode && (prevSibOfRightNode == leftTextNode)) { nsCOMPtr parent; result = rightTextNode->GetParentNode(getter_AddRefs(parent)); NS_ENSURE_SUCCESS(result, result); NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER); result = JoinNodes(leftTextNode, rightTextNode, parent); NS_ENSURE_SUCCESS(result, result); } textNodes.RemoveElementAt(0); // remove the leftmost text node from the list } return result; } NS_IMETHODIMP nsHTMLEditor::SetSelectionAtDocumentStart(nsISelection *aSelection) { dom::Element* rootElement = GetRoot(); NS_ENSURE_TRUE(rootElement, NS_ERROR_NULL_POINTER); return aSelection->CollapseNative(rootElement, 0); } /////////////////////////////////////////////////////////////////////////// // RemoveBlockContainer: remove inNode, reparenting its children into their // the parent of inNode. In addition, INSERT ANY BR's NEEDED // TO PRESERVE IDENTITY OF REMOVED BLOCK. // nsresult nsHTMLEditor::RemoveBlockContainer(nsIDOMNode *inNode) { NS_ENSURE_TRUE(inNode, NS_ERROR_NULL_POINTER); nsresult res; nsCOMPtr sibling, child, unused; // Two possibilities: the container cold be empty of editable content. // If that is the case, we need to compare what is before and after inNode // to determine if we need a br. // Or it could not be empty, in which case we have to compare previous // sibling and first child to determine if we need a leading br, // and compare following sibling and last child to determine if we need a // trailing br. res = GetFirstEditableChild(inNode, address_of(child)); NS_ENSURE_SUCCESS(res, res); if (child) // the case of inNode not being empty { // we need a br at start unless: // 1) previous sibling of inNode is a block, OR // 2) previous sibling of inNode is a br, OR // 3) first child of inNode is a block OR // 4) either is null res = GetPriorHTMLSibling(inNode, address_of(sibling)); NS_ENSURE_SUCCESS(res, res); if (sibling && !IsBlockNode(sibling) && !nsTextEditUtils::IsBreak(sibling)) { res = GetFirstEditableChild(inNode, address_of(child)); NS_ENSURE_SUCCESS(res, res); if (child && !IsBlockNode(child)) { // insert br node res = CreateBR(inNode, 0, address_of(unused)); NS_ENSURE_SUCCESS(res, res); } } // we need a br at end unless: // 1) following sibling of inNode is a block, OR // 2) last child of inNode is a block, OR // 3) last child of inNode is a block OR // 4) either is null res = GetNextHTMLSibling(inNode, address_of(sibling)); NS_ENSURE_SUCCESS(res, res); if (sibling && !IsBlockNode(sibling)) { res = GetLastEditableChild(inNode, address_of(child)); NS_ENSURE_SUCCESS(res, res); if (child && !IsBlockNode(child) && !nsTextEditUtils::IsBreak(child)) { // insert br node PRUint32 len; res = GetLengthOfDOMNode(inNode, len); NS_ENSURE_SUCCESS(res, res); res = CreateBR(inNode, (PRInt32)len, address_of(unused)); NS_ENSURE_SUCCESS(res, res); } } } else // the case of inNode being empty { // we need a br at start unless: // 1) previous sibling of inNode is a block, OR // 2) previous sibling of inNode is a br, OR // 3) following sibling of inNode is a block, OR // 4) following sibling of inNode is a br OR // 5) either is null res = GetPriorHTMLSibling(inNode, address_of(sibling)); NS_ENSURE_SUCCESS(res, res); if (sibling && !IsBlockNode(sibling) && !nsTextEditUtils::IsBreak(sibling)) { res = GetNextHTMLSibling(inNode, address_of(sibling)); NS_ENSURE_SUCCESS(res, res); if (sibling && !IsBlockNode(sibling) && !nsTextEditUtils::IsBreak(sibling)) { // insert br node res = CreateBR(inNode, 0, address_of(unused)); NS_ENSURE_SUCCESS(res, res); } } } // now remove container return RemoveContainer(inNode); } /////////////////////////////////////////////////////////////////////////// // GetPriorHTMLSibling: returns the previous editable sibling, if there is // one within the parent // nsIContent* nsHTMLEditor::GetPriorHTMLSibling(nsINode* aNode) { MOZ_ASSERT(aNode); nsIContent* node = aNode->GetPreviousSibling(); while (node && !IsEditable(node)) { node = node->GetPreviousSibling(); } return node; } nsresult nsHTMLEditor::GetPriorHTMLSibling(nsIDOMNode *inNode, nsCOMPtr *outNode) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); *outNode = NULL; nsCOMPtr node = do_QueryInterface(inNode); NS_ENSURE_TRUE(node, NS_ERROR_NULL_POINTER); *outNode = do_QueryInterface(GetPriorHTMLSibling(node)); return NS_OK; } /////////////////////////////////////////////////////////////////////////// // GetPriorHTMLSibling: returns the previous editable sibling, if there is // one within the parent. just like above routine but // takes a parent/offset instead of a node. // nsIContent* nsHTMLEditor::GetPriorHTMLSibling(nsINode* aParent, PRInt32 aOffset) { MOZ_ASSERT(aParent); nsIContent* node = aParent->GetChildAt(aOffset - 1); if (!node || IsEditable(node)) { return node; } return GetPriorHTMLSibling(node); } nsresult nsHTMLEditor::GetPriorHTMLSibling(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); *outNode = NULL; nsCOMPtr parent = do_QueryInterface(inParent); NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER); *outNode = do_QueryInterface(GetPriorHTMLSibling(parent, inOffset)); return NS_OK; } /////////////////////////////////////////////////////////////////////////// // GetNextHTMLSibling: returns the next editable sibling, if there is // one within the parent // nsIContent* nsHTMLEditor::GetNextHTMLSibling(nsINode* aNode) { MOZ_ASSERT(aNode); nsIContent* node = aNode->GetNextSibling(); while (node && !IsEditable(node)) { node = node->GetNextSibling(); } return node; } nsresult nsHTMLEditor::GetNextHTMLSibling(nsIDOMNode *inNode, nsCOMPtr *outNode) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); *outNode = nsnull; nsCOMPtr node = do_QueryInterface(inNode); NS_ENSURE_TRUE(node, NS_ERROR_NULL_POINTER); *outNode = do_QueryInterface(GetNextHTMLSibling(node)); return NS_OK; } /////////////////////////////////////////////////////////////////////////// // GetNextHTMLSibling: returns the next editable sibling, if there is // one within the parent. just like above routine but // takes a parent/offset instead of a node. nsIContent* nsHTMLEditor::GetNextHTMLSibling(nsINode* aParent, PRInt32 aOffset) { MOZ_ASSERT(aParent); nsIContent* node = aParent->GetChildAt(aOffset + 1); if (!node || IsEditable(node)) { return node; } return GetNextHTMLSibling(node); } nsresult nsHTMLEditor::GetNextHTMLSibling(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); *outNode = NULL; nsCOMPtr parent = do_QueryInterface(inParent); NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER); *outNode = do_QueryInterface(GetNextHTMLSibling(parent, inOffset)); return NS_OK; } /////////////////////////////////////////////////////////////////////////// // GetPriorHTMLNode: returns the previous editable leaf node, if there is // one within the // nsresult nsHTMLEditor::GetPriorHTMLNode(nsIDOMNode *inNode, nsCOMPtr *outNode, bool bNoBlockCrossing) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); nsIContent* activeEditingHost = GetActiveEditingHost(); if (!activeEditingHost) { *outNode = nsnull; return NS_OK; } nsresult res = GetPriorNode(inNode, true, address_of(*outNode), bNoBlockCrossing); NS_ENSURE_SUCCESS(res, res); NS_ASSERTION(!*outNode || IsDescendantOfEditorRoot(*outNode), "GetPriorNode screwed up"); return res; } /////////////////////////////////////////////////////////////////////////// // GetPriorHTMLNode: same as above but takes {parent,offset} instead of node // nsresult nsHTMLEditor::GetPriorHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode, bool bNoBlockCrossing) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); nsIContent* activeEditingHost = GetActiveEditingHost(); if (!activeEditingHost) { *outNode = nsnull; return NS_OK; } nsresult res = GetPriorNode(inParent, inOffset, true, address_of(*outNode), bNoBlockCrossing); NS_ENSURE_SUCCESS(res, res); NS_ASSERTION(!*outNode || IsDescendantOfEditorRoot(*outNode), "GetPriorNode screwed up"); return res; } /////////////////////////////////////////////////////////////////////////// // GetNextHTMLNode: returns the next editable leaf node, if there is // one within the // nsresult nsHTMLEditor::GetNextHTMLNode(nsIDOMNode *inNode, nsCOMPtr *outNode, bool bNoBlockCrossing) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); nsresult res = GetNextNode(inNode, true, address_of(*outNode), bNoBlockCrossing); NS_ENSURE_SUCCESS(res, res); // if it's not in the body, then zero it out if (*outNode && !IsDescendantOfEditorRoot(*outNode)) { *outNode = nsnull; } return res; } /////////////////////////////////////////////////////////////////////////// // GetNHTMLextNode: same as above but takes {parent,offset} instead of node // nsresult nsHTMLEditor::GetNextHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode, bool bNoBlockCrossing) { NS_ENSURE_TRUE(outNode, NS_ERROR_NULL_POINTER); nsresult res = GetNextNode(inParent, inOffset, true, address_of(*outNode), bNoBlockCrossing); NS_ENSURE_SUCCESS(res, res); // if it's not in the body, then zero it out if (*outNode && !IsDescendantOfEditorRoot(*outNode)) { *outNode = nsnull; } return res; } nsresult nsHTMLEditor::IsFirstEditableChild( nsIDOMNode *aNode, bool *aOutIsFirst) { // check parms NS_ENSURE_TRUE(aOutIsFirst && aNode, NS_ERROR_NULL_POINTER); // init out parms *aOutIsFirst = false; // find first editable child and compare it to aNode nsCOMPtr parent, firstChild; nsresult res = aNode->GetParentNode(getter_AddRefs(parent)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(parent, NS_ERROR_FAILURE); res = GetFirstEditableChild(parent, address_of(firstChild)); NS_ENSURE_SUCCESS(res, res); *aOutIsFirst = (firstChild.get() == aNode); return res; } nsresult nsHTMLEditor::IsLastEditableChild( nsIDOMNode *aNode, bool *aOutIsLast) { // check parms NS_ENSURE_TRUE(aOutIsLast && aNode, NS_ERROR_NULL_POINTER); // init out parms *aOutIsLast = false; // find last editable child and compare it to aNode nsCOMPtr parent, lastChild; nsresult res = aNode->GetParentNode(getter_AddRefs(parent)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(parent, NS_ERROR_FAILURE); res = GetLastEditableChild(parent, address_of(lastChild)); NS_ENSURE_SUCCESS(res, res); *aOutIsLast = (lastChild.get() == aNode); return res; } nsresult nsHTMLEditor::GetFirstEditableChild( nsIDOMNode *aNode, nsCOMPtr *aOutFirstChild) { // check parms NS_ENSURE_TRUE(aOutFirstChild && aNode, NS_ERROR_NULL_POINTER); // init out parms *aOutFirstChild = nsnull; // find first editable child nsCOMPtr child; nsresult res = aNode->GetFirstChild(getter_AddRefs(child)); NS_ENSURE_SUCCESS(res, res); while (child && !IsEditable(child)) { nsCOMPtr tmp; res = child->GetNextSibling(getter_AddRefs(tmp)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); child = tmp; } *aOutFirstChild = child; return res; } nsresult nsHTMLEditor::GetLastEditableChild( nsIDOMNode *aNode, nsCOMPtr *aOutLastChild) { // check parms NS_ENSURE_TRUE(aOutLastChild && aNode, NS_ERROR_NULL_POINTER); // init out parms *aOutLastChild = aNode; // find last editable child nsCOMPtr child; nsresult res = aNode->GetLastChild(getter_AddRefs(child)); NS_ENSURE_SUCCESS(res, res); while (child && !IsEditable(child)) { nsCOMPtr tmp; res = child->GetPreviousSibling(getter_AddRefs(tmp)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); child = tmp; } *aOutLastChild = child; return res; } nsresult nsHTMLEditor::GetFirstEditableLeaf( nsIDOMNode *aNode, nsCOMPtr *aOutFirstLeaf) { // check parms NS_ENSURE_TRUE(aOutFirstLeaf && aNode, NS_ERROR_NULL_POINTER); // init out parms *aOutFirstLeaf = aNode; // find leftmost leaf nsCOMPtr child; nsresult res = NS_OK; child = GetLeftmostChild(aNode); while (child && (!IsEditable(child) || !nsEditorUtils::IsLeafNode(child))) { nsCOMPtr tmp; res = GetNextHTMLNode(child, address_of(tmp)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); // only accept nodes that are descendants of aNode if (nsEditorUtils::IsDescendantOf(tmp, aNode)) child = tmp; else { child = nsnull; // this will abort the loop } } *aOutFirstLeaf = child; return res; } nsresult nsHTMLEditor::GetLastEditableLeaf(nsIDOMNode *aNode, nsCOMPtr *aOutLastLeaf) { // check parms NS_ENSURE_TRUE(aOutLastLeaf && aNode, NS_ERROR_NULL_POINTER); // init out parms *aOutLastLeaf = nsnull; // find rightmost leaf nsCOMPtr child = GetRightmostChild(aNode, false); nsresult res = NS_OK; while (child && (!IsEditable(child) || !nsEditorUtils::IsLeafNode(child))) { nsCOMPtr tmp; res = GetPriorHTMLNode(child, address_of(tmp)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE); // only accept nodes that are descendants of aNode if (nsEditorUtils::IsDescendantOf(tmp, aNode)) child = tmp; else { child = nsnull; } } *aOutLastLeaf = child; return res; } bool nsHTMLEditor::IsTextInDirtyFrameVisible(nsIContent *aNode) { MOZ_ASSERT(aNode); MOZ_ASSERT(aNode->NodeType() == nsIDOMNode::TEXT_NODE); bool isEmptyTextNode; nsresult rv = IsVisTextNode(aNode, &isEmptyTextNode, false); if (NS_FAILED(rv)) { // We are following the historical decision: // if we don't know, we say it's visible... return true; } return !isEmptyTextNode; } /////////////////////////////////////////////////////////////////////////// // IsVisTextNode: figure out if textnode aTextNode has any visible content. // nsresult nsHTMLEditor::IsVisTextNode(nsIContent* aNode, bool* outIsEmptyNode, bool aSafeToAskFrames) { MOZ_ASSERT(aNode); MOZ_ASSERT(aNode->NodeType() == nsIDOMNode::TEXT_NODE); MOZ_ASSERT(outIsEmptyNode); *outIsEmptyNode = true; PRUint32 length = aNode->TextLength(); if (aSafeToAskFrames) { nsCOMPtr selCon; nsresult res = GetSelectionController(getter_AddRefs(selCon)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selCon, NS_ERROR_FAILURE); bool isVisible = false; // ask the selection controller for information about whether any // of the data in the node is really rendered. This is really // something that frames know about, but we aren't supposed to talk to frames. // So we put a call in the selection controller interface, since it's already // in bed with frames anyway. (this is a fix for bug 22227, and a // partial fix for bug 46209) res = selCon->CheckVisibilityContent(aNode, 0, length, &isVisible); NS_ENSURE_SUCCESS(res, res); if (isVisible) { *outIsEmptyNode = false; } } else if (length) { if (aNode->TextIsOnlyWhitespace()) { nsCOMPtr node = do_QueryInterface(aNode); nsWSRunObject wsRunObj(this, node, 0); nsCOMPtr visNode; PRInt32 outVisOffset=0; PRInt16 visType=0; nsresult res = wsRunObj.NextVisibleNode(node, 0, address_of(visNode), &outVisOffset, &visType); NS_ENSURE_SUCCESS(res, res); if ( (visType == nsWSRunObject::eNormalWS) || (visType == nsWSRunObject::eText) ) { *outIsEmptyNode = (node != visNode); } } else { *outIsEmptyNode = false; } } return NS_OK; } /////////////////////////////////////////////////////////////////////////// // IsEmptyNode: figure out if aNode is an empty node. // A block can have children and still be considered empty, // if the children are empty or non-editable. // nsresult nsHTMLEditor::IsEmptyNode( nsIDOMNode *aNode, bool *outIsEmptyNode, bool aSingleBRDoesntCount, bool aListOrCellNotEmpty, bool aSafeToAskFrames) { nsCOMPtr node = do_QueryInterface(aNode); return IsEmptyNode(node, outIsEmptyNode, aSingleBRDoesntCount, aListOrCellNotEmpty, aSafeToAskFrames); } nsresult nsHTMLEditor::IsEmptyNode(nsINode* aNode, bool* outIsEmptyNode, bool aSingleBRDoesntCount, bool aListOrCellNotEmpty, bool aSafeToAskFrames) { NS_ENSURE_TRUE(aNode && outIsEmptyNode, NS_ERROR_NULL_POINTER); *outIsEmptyNode = true; bool seenBR = false; return IsEmptyNodeImpl(aNode, outIsEmptyNode, aSingleBRDoesntCount, aListOrCellNotEmpty, aSafeToAskFrames, &seenBR); } /////////////////////////////////////////////////////////////////////////// // IsEmptyNodeImpl: workhorse for IsEmptyNode. // nsresult nsHTMLEditor::IsEmptyNodeImpl(nsINode* aNode, bool *outIsEmptyNode, bool aSingleBRDoesntCount, bool aListOrCellNotEmpty, bool aSafeToAskFrames, bool *aSeenBR) { NS_ENSURE_TRUE(aNode && outIsEmptyNode && aSeenBR, NS_ERROR_NULL_POINTER); if (aNode->NodeType() == nsIDOMNode::TEXT_NODE) { return IsVisTextNode(static_cast(aNode), outIsEmptyNode, aSafeToAskFrames); } // if it's not a text node (handled above) and it's not a container, // then we don't call it empty (it's an
, or
, etc). // Also, if it's an anchor then don't treat it as empty - even though // anchors are containers, named anchors are "empty" but we don't // want to treat them as such. Also, don't call ListItems or table // cells empty if caller desires. Form Widgets not empty. if (!IsContainer(aNode) || (aNode->IsElement() && (nsHTMLEditUtils::IsNamedAnchor(aNode->AsElement()) || nsHTMLEditUtils::IsFormWidget(aNode->AsElement()) || (aListOrCellNotEmpty && (nsHTMLEditUtils::IsListItem(aNode->AsElement()) || nsHTMLEditUtils::IsTableCell(aNode->AsElement())))))) { *outIsEmptyNode = false; return NS_OK; } // need this for later bool isListItemOrCell = aNode->IsElement() && (nsHTMLEditUtils::IsListItem(aNode->AsElement()) || nsHTMLEditUtils::IsTableCell(aNode->AsElement())); // loop over children of node. if no children, or all children are either // empty text nodes or non-editable, then node qualifies as empty for (nsCOMPtr child = aNode->GetFirstChild(); child; child = child->GetNextSibling()) { // Is the child editable and non-empty? if so, return false if (nsEditor::IsEditable(child)) { if (child->NodeType() == nsIDOMNode::TEXT_NODE) { nsresult rv = IsVisTextNode(child, outIsEmptyNode, aSafeToAskFrames); NS_ENSURE_SUCCESS(rv, rv); // break out if we find we aren't emtpy if (!*outIsEmptyNode) { return NS_OK; } } else { // An editable, non-text node. We need to check its content. // Is it the node we are iterating over? if (child == aNode) { break; } if (aSingleBRDoesntCount && !*aSeenBR && child->IsHTML(nsGkAtoms::br)) { // the first br in a block doesn't count if the caller so indicated *aSeenBR = true; } else { // is it an empty node of some sort? // note: list items or table cells are not considered empty // if they contain other lists or tables if (child->IsElement()) { if (isListItemOrCell) { if (nsHTMLEditUtils::IsList(child->AsElement()) || child->IsHTML(nsGkAtoms::table)) { // break out if we find we aren't empty *outIsEmptyNode = false; return NS_OK; } } else if (nsHTMLEditUtils::IsFormWidget(child->AsElement())) { // is it a form widget? // break out if we find we aren't empty *outIsEmptyNode = false; return NS_OK; } } bool isEmptyNode = true; nsresult rv = IsEmptyNodeImpl(child, &isEmptyNode, aSingleBRDoesntCount, aListOrCellNotEmpty, aSafeToAskFrames, aSeenBR); NS_ENSURE_SUCCESS(rv, rv); if (!isEmptyNode) { // otherwise it ain't empty *outIsEmptyNode = false; return NS_OK; } } } } } return NS_OK; } // add to aElement the CSS inline styles corresponding to the HTML attribute // aAttribute with its value aValue nsresult nsHTMLEditor::SetAttributeOrEquivalent(nsIDOMElement * aElement, const nsAString & aAttribute, const nsAString & aValue, bool aSuppressTransaction) { nsresult res = NS_OK; if (IsCSSEnabled() && mHTMLCSSUtils) { PRInt32 count; res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(aElement, nsnull, &aAttribute, &aValue, &count, aSuppressTransaction); NS_ENSURE_SUCCESS(res, res); if (count) { // we found an equivalence ; let's remove the HTML attribute itself if it is set nsAutoString existingValue; bool wasSet = false; res = GetAttributeValue(aElement, aAttribute, existingValue, &wasSet); NS_ENSURE_SUCCESS(res, res); if (wasSet) { if (aSuppressTransaction) res = aElement->RemoveAttribute(aAttribute); else res = RemoveAttribute(aElement, aAttribute); } } else { // count is an integer that represents the number of CSS declarations applied to the // element. If it is zero, we found no equivalence in this implementation for the // attribute if (aAttribute.EqualsLiteral("style")) { // if it is the style attribute, just add the new value to the existing style // attribute's value nsAutoString existingValue; bool wasSet = false; res = GetAttributeValue(aElement, NS_LITERAL_STRING("style"), existingValue, &wasSet); NS_ENSURE_SUCCESS(res, res); existingValue.AppendLiteral(" "); existingValue.Append(aValue); if (aSuppressTransaction) res = aElement->SetAttribute(aAttribute, existingValue); else res = SetAttribute(aElement, aAttribute, existingValue); } else { // we have no CSS equivalence for this attribute and it is not the style // attribute; let's set it the good'n'old HTML way if (aSuppressTransaction) res = aElement->SetAttribute(aAttribute, aValue); else res = SetAttribute(aElement, aAttribute, aValue); } } } else { // we are not in an HTML+CSS editor; let's set the attribute the HTML way if (aSuppressTransaction) res = aElement->SetAttribute(aAttribute, aValue); else res = SetAttribute(aElement, aAttribute, aValue); } return res; } nsresult nsHTMLEditor::RemoveAttributeOrEquivalent(nsIDOMElement * aElement, const nsAString & aAttribute, bool aSuppressTransaction) { nsresult res = NS_OK; if (IsCSSEnabled() && mHTMLCSSUtils) { res = mHTMLCSSUtils->RemoveCSSEquivalentToHTMLStyle(aElement, nsnull, &aAttribute, nsnull, aSuppressTransaction); NS_ENSURE_SUCCESS(res, res); } nsAutoString existingValue; bool wasSet = false; res = GetAttributeValue(aElement, aAttribute, existingValue, &wasSet); NS_ENSURE_SUCCESS(res, res); if (wasSet) { if (aSuppressTransaction) res = aElement->RemoveAttribute(aAttribute); else res = RemoveAttribute(aElement, aAttribute); } return res; } nsresult nsHTMLEditor::SetIsCSSEnabled(bool aIsCSSPrefChecked) { if (!mHTMLCSSUtils) { return NS_ERROR_NOT_INITIALIZED; } nsresult rv = mHTMLCSSUtils->SetCSSEnabled(aIsCSSPrefChecked); NS_ENSURE_SUCCESS(rv, rv); // Disable the eEditorNoCSSMask flag if we're enabling StyleWithCSS. PRUint32 flags = mFlags; if (aIsCSSPrefChecked) { // Turn off NoCSS as we're enabling CSS flags &= ~eEditorNoCSSMask; } else { // Turn on NoCSS, as we're disabling CSS. flags |= eEditorNoCSSMask; } return SetFlags(flags); } // Set the block background color NS_IMETHODIMP nsHTMLEditor::SetCSSBackgroundColor(const nsAString& aColor) { if (!mRules) { return NS_ERROR_NOT_INITIALIZED; } ForceCompositionEnd(); // Protect the edit rules object from dying nsCOMPtr kungFuDeathGrip(mRules); nsresult res; nsCOMPtrselection; res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER); nsCOMPtr selPriv(do_QueryInterface(selection)); bool isCollapsed; selection->GetIsCollapsed(&isCollapsed); nsAutoEditBatch batchIt(this); nsAutoRules beginRulesSniffing(this, kOpInsertElement, nsIEditor::eNext); nsAutoSelectionReset selectionResetter(selection, this); nsAutoTxnsConserveSelection dontSpazMySelection(this); bool cancel, handled; nsTextRulesInfo ruleInfo(kOpSetTextProperty); res = mRules->WillDoAction(selection, &ruleInfo, &cancel, &handled); NS_ENSURE_SUCCESS(res, res); if (!cancel && !handled) { // get selection range enumerator nsCOMPtr enumerator; res = selPriv->GetEnumerator(getter_AddRefs(enumerator)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(enumerator, NS_ERROR_FAILURE); // loop thru the ranges in the selection enumerator->First(); nsCOMPtr currentItem; nsAutoString bgcolor; bgcolor.AssignLiteral("bgcolor"); nsCOMPtr cachedBlockParent = nsnull; while ((NS_ENUMERATOR_FALSE == enumerator->IsDone())) { res = enumerator->CurrentItem(getter_AddRefs(currentItem)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(currentItem, NS_ERROR_FAILURE); nsCOMPtr range( do_QueryInterface(currentItem) ); // check for easy case: both range endpoints in same text node nsCOMPtr startNode, endNode; PRInt32 startOffset, endOffset; res = range->GetStartContainer(getter_AddRefs(startNode)); NS_ENSURE_SUCCESS(res, res); res = range->GetEndContainer(getter_AddRefs(endNode)); NS_ENSURE_SUCCESS(res, res); res = range->GetStartOffset(&startOffset); NS_ENSURE_SUCCESS(res, res); res = range->GetEndOffset(&endOffset); NS_ENSURE_SUCCESS(res, res); if ((startNode == endNode) && IsTextNode(startNode)) { // let's find the block container of the text node nsCOMPtr blockParent; blockParent = GetBlockNodeParent(startNode); // and apply the background color to that block container if (cachedBlockParent != blockParent) { cachedBlockParent = blockParent; nsCOMPtr element = do_QueryInterface(blockParent); PRInt32 count; res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(element, nsnull, &bgcolor, &aColor, &count, false); NS_ENSURE_SUCCESS(res, res); } } else if ((startNode == endNode) && nsTextEditUtils::IsBody(startNode) && isCollapsed) { // we have no block in the document, let's apply the background to the body nsCOMPtr element = do_QueryInterface(startNode); PRInt32 count; res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(element, nsnull, &bgcolor, &aColor, &count, false); NS_ENSURE_SUCCESS(res, res); } else if ((startNode == endNode) && (((endOffset-startOffset) == 1) || (!startOffset && !endOffset))) { // a unique node is selected, let's also apply the background color // to the containing block, possibly the node itself nsCOMPtr selectedNode = GetChildAt(startNode, startOffset); bool isBlock =false; res = NodeIsBlockStatic(selectedNode, &isBlock); NS_ENSURE_SUCCESS(res, res); nsCOMPtr blockParent = selectedNode; if (!isBlock) { blockParent = GetBlockNodeParent(selectedNode); } if (cachedBlockParent != blockParent) { cachedBlockParent = blockParent; nsCOMPtr element = do_QueryInterface(blockParent); PRInt32 count; res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(element, nsnull, &bgcolor, &aColor, &count, false); NS_ENSURE_SUCCESS(res, res); } } else { // not the easy case. range not contained in single text node. // there are up to three phases here. There are all the nodes // reported by the subtree iterator to be processed. And there // are potentially a starting textnode and an ending textnode // which are only partially contained by the range. // lets handle the nodes reported by the iterator. These nodes // are entirely contained in the selection range. We build up // a list of them (since doing operations on the document during // iteration would perturb the iterator). nsCOMPtr iter = do_CreateInstance("@mozilla.org/content/subtree-content-iterator;1", &res); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(iter, NS_ERROR_FAILURE); nsCOMArray arrayOfNodes; nsCOMPtr node; // iterate range and build up array res = iter->Init(range); // init returns an error if no nodes in range. // this can easily happen with the subtree // iterator if the selection doesn't contain // any *whole* nodes. if (NS_SUCCEEDED(res)) { while (!iter->IsDone()) { node = do_QueryInterface(iter->GetCurrentNode()); NS_ENSURE_TRUE(node, NS_ERROR_FAILURE); if (IsEditable(node)) { arrayOfNodes.AppendObject(node); } iter->Next(); } } // first check the start parent of the range to see if it needs to // be separately handled (it does if it's a text node, due to how the // subtree iterator works - it will not have reported it). if (IsTextNode(startNode) && IsEditable(startNode)) { nsCOMPtr blockParent; blockParent = GetBlockNodeParent(startNode); if (cachedBlockParent != blockParent) { cachedBlockParent = blockParent; nsCOMPtr element = do_QueryInterface(blockParent); PRInt32 count; res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(element, nsnull, &bgcolor, &aColor, &count, false); NS_ENSURE_SUCCESS(res, res); } } // then loop through the list, set the property on each node PRInt32 listCount = arrayOfNodes.Count(); PRInt32 j; for (j = 0; j < listCount; j++) { node = arrayOfNodes[j]; // do we have a block here ? bool isBlock =false; res = NodeIsBlockStatic(node, &isBlock); NS_ENSURE_SUCCESS(res, res); nsCOMPtr blockParent = node; if (!isBlock) { // no we don't, let's find the block ancestor blockParent = GetBlockNodeParent(node); } if (cachedBlockParent != blockParent) { cachedBlockParent = blockParent; nsCOMPtr element = do_QueryInterface(blockParent); PRInt32 count; // and set the property on it res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(element, nsnull, &bgcolor, &aColor, &count, false); NS_ENSURE_SUCCESS(res, res); } } arrayOfNodes.Clear(); // last check the end parent of the range to see if it needs to // be separately handled (it does if it's a text node, due to how the // subtree iterator works - it will not have reported it). if (IsTextNode(endNode) && IsEditable(endNode)) { nsCOMPtr blockParent; blockParent = GetBlockNodeParent(endNode); if (cachedBlockParent != blockParent) { cachedBlockParent = blockParent; nsCOMPtr element = do_QueryInterface(blockParent); PRInt32 count; res = mHTMLCSSUtils->SetCSSEquivalentToHTMLStyle(element, nsnull, &bgcolor, &aColor, &count, false); NS_ENSURE_SUCCESS(res, res); } } } enumerator->Next(); } } if (!cancel) { // post-process res = mRules->DidDoAction(selection, &ruleInfo, res); } return res; } NS_IMETHODIMP nsHTMLEditor::SetBackgroundColor(const nsAString& aColor) { nsresult res; if (IsCSSEnabled()) { // if we are in CSS mode, we have to apply the background color to the // containing block (or the body if we have no block-level element in // the document) res = SetCSSBackgroundColor(aColor); } else { // but in HTML mode, we can only set the document's background color res = SetHTMLBackgroundColor(aColor); } return res; } /////////////////////////////////////////////////////////////////////////// // NodesSameType: do these nodes have the same tag? // bool nsHTMLEditor::NodesSameType(nsIDOMNode *aNode1, nsIDOMNode *aNode2) { if (!aNode1 || !aNode2) { NS_NOTREACHED("null node passed to nsEditor::NodesSameType()"); return false; } nsIAtom *tag1 = GetTag(aNode1); if (tag1 == GetTag(aNode2)) { if (IsCSSEnabled() && tag1 == nsEditProperty::span) { if (mHTMLCSSUtils->ElementsSameStyle(aNode1, aNode2)) { return true; } } else { return true; } } return false; } NS_IMETHODIMP nsHTMLEditor::CopyLastEditableChildStyles(nsIDOMNode * aPreviousBlock, nsIDOMNode * aNewBlock, nsIDOMNode **aOutBrNode) { *aOutBrNode = nsnull; nsCOMPtr child, tmp; nsresult res; // first, clear out aNewBlock. Contract is that we want only the styles from previousBlock. res = aNewBlock->GetFirstChild(getter_AddRefs(child)); while (NS_SUCCEEDED(res) && child) { res = DeleteNode(child); NS_ENSURE_SUCCESS(res, res); res = aNewBlock->GetFirstChild(getter_AddRefs(child)); } // now find and clone the styles child = aPreviousBlock; tmp = aPreviousBlock; while (tmp) { child = tmp; res = GetLastEditableChild(child, address_of(tmp)); NS_ENSURE_SUCCESS(res, res); } while (child && nsTextEditUtils::IsBreak(child)) { nsCOMPtr priorNode; res = GetPriorHTMLNode(child, address_of(priorNode)); NS_ENSURE_SUCCESS(res, res); child = priorNode; } nsCOMPtr newStyles = nsnull, deepestStyle = nsnull; while (child && (child != aPreviousBlock)) { if (nsHTMLEditUtils::IsInlineStyle(child) || nsEditor::NodeIsType(child, nsEditProperty::span)) { nsAutoString domTagName; child->GetNodeName(domTagName); ToLowerCase(domTagName); if (newStyles) { nsCOMPtr newContainer; res = InsertContainerAbove(newStyles, address_of(newContainer), domTagName); NS_ENSURE_SUCCESS(res, res); newStyles = newContainer; } else { res = CreateNode(domTagName, aNewBlock, 0, getter_AddRefs(newStyles)); NS_ENSURE_SUCCESS(res, res); deepestStyle = newStyles; } res = CloneAttributes(newStyles, child); NS_ENSURE_SUCCESS(res, res); } nsCOMPtr tmp; res = child->GetParentNode(getter_AddRefs(tmp)); NS_ENSURE_SUCCESS(res, res); child = tmp; } if (deepestStyle) { nsCOMPtr outBRNode; res = CreateBR(deepestStyle, 0, address_of(outBRNode)); NS_ENSURE_SUCCESS(res, res); // Getters must addref outBRNode.forget(aOutBrNode); } return NS_OK; } nsresult nsHTMLEditor::GetElementOrigin(nsIDOMElement * aElement, PRInt32 & aX, PRInt32 & aY) { aX = 0; aY = 0; NS_ENSURE_TRUE(mDocWeak, NS_ERROR_NOT_INITIALIZED); nsCOMPtr ps = GetPresShell(); NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED); nsCOMPtr content = do_QueryInterface(aElement); nsIFrame *frame = content->GetPrimaryFrame(); NS_ENSURE_TRUE(frame, NS_OK); nsIFrame *container = ps->GetAbsoluteContainingBlock(frame); NS_ENSURE_TRUE(container, NS_OK); nsPoint off = frame->GetOffsetTo(container); aX = nsPresContext::AppUnitsToIntCSSPixels(off.x); aY = nsPresContext::AppUnitsToIntCSSPixels(off.y); return NS_OK; } nsresult nsHTMLEditor::EndUpdateViewBatch() { nsresult res = nsEditor::EndUpdateViewBatch(); NS_ENSURE_SUCCESS(res, res); // We may need to show resizing handles or update existing ones after // all transactions are done. This way of doing is preferred to DOM // mutation events listeners because all the changes the user can apply // to a document may result in multiple events, some of them quite hard // to listen too (in particular when an ancestor of the selection is // changed but the selection itself is not changed). if (mUpdateCount == 0) { nsCOMPtr selection; res = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(selection, NS_ERROR_NOT_INITIALIZED); res = CheckSelectionStateForAnonymousButtons(selection); } return res; } NS_IMETHODIMP nsHTMLEditor::GetSelectionContainer(nsIDOMElement ** aReturn) { nsCOMPtrselection; nsresult res = GetSelection(getter_AddRefs(selection)); // if we don't get the selection, just skip this if (NS_FAILED(res) || !selection) return res; bool bCollapsed; res = selection->GetIsCollapsed(&bCollapsed); NS_ENSURE_SUCCESS(res, res); nsCOMPtr focusNode; if (bCollapsed) { res = selection->GetFocusNode(getter_AddRefs(focusNode)); NS_ENSURE_SUCCESS(res, res); } else { PRInt32 rangeCount; res = selection->GetRangeCount(&rangeCount); NS_ENSURE_SUCCESS(res, res); if (rangeCount == 1) { nsCOMPtr range; res = selection->GetRangeAt(0, getter_AddRefs(range)); NS_ENSURE_SUCCESS(res, res); NS_ENSURE_TRUE(range, NS_ERROR_NULL_POINTER); nsCOMPtr startContainer, endContainer; res = range->GetStartContainer(getter_AddRefs(startContainer)); NS_ENSURE_SUCCESS(res, res); res = range->GetEndContainer(getter_AddRefs(endContainer)); NS_ENSURE_SUCCESS(res, res); PRInt32 startOffset, endOffset; res = range->GetStartOffset(&startOffset); NS_ENSURE_SUCCESS(res, res); res = range->GetEndOffset(&endOffset); NS_ENSURE_SUCCESS(res, res); nsCOMPtr focusElement; if (startContainer == endContainer && startOffset + 1 == endOffset) { res = GetSelectedElement(EmptyString(), getter_AddRefs(focusElement)); NS_ENSURE_SUCCESS(res, res); if (focusElement) focusNode = do_QueryInterface(focusElement); } if (!focusNode) { res = range->GetCommonAncestorContainer(getter_AddRefs(focusNode)); NS_ENSURE_SUCCESS(res, res); } } else { PRInt32 i; nsCOMPtr range; for (i = 0; i < rangeCount; i++) { res = selection->GetRangeAt(i, getter_AddRefs(range)); NS_ENSURE_SUCCESS(res, res); nsCOMPtr startContainer; res = range->GetStartContainer(getter_AddRefs(startContainer)); if (NS_FAILED(res)) continue; if (!focusNode) focusNode = startContainer; else if (focusNode != startContainer) { res = startContainer->GetParentNode(getter_AddRefs(focusNode)); NS_ENSURE_SUCCESS(res, res); break; } } } } if (focusNode) { PRUint16 nodeType; focusNode->GetNodeType(&nodeType); if (nsIDOMNode::TEXT_NODE == nodeType) { nsCOMPtr parent; res = focusNode->GetParentNode(getter_AddRefs(parent)); NS_ENSURE_SUCCESS(res, res); focusNode = parent; } } nsCOMPtr focusElement = do_QueryInterface(focusNode); focusElement.forget(aReturn); return NS_OK; } NS_IMETHODIMP nsHTMLEditor::IsAnonymousElement(nsIDOMElement * aElement, bool * aReturn) { NS_ENSURE_TRUE(aElement, NS_ERROR_NULL_POINTER); nsCOMPtr content = do_QueryInterface(aElement); *aReturn = content->IsRootOfNativeAnonymousSubtree(); return NS_OK; } nsresult nsHTMLEditor::SetReturnInParagraphCreatesNewParagraph(bool aCreatesNewParagraph) { mCRInParagraphCreatesParagraph = aCreatesNewParagraph; return NS_OK; } nsresult nsHTMLEditor::GetReturnInParagraphCreatesNewParagraph(bool *aCreatesNewParagraph) { *aCreatesNewParagraph = mCRInParagraphCreatesParagraph; return NS_OK; } already_AddRefed nsHTMLEditor::GetFocusedContent() { NS_ENSURE_TRUE(mDocWeak, nsnull); nsFocusManager* fm = nsFocusManager::GetFocusManager(); NS_ENSURE_TRUE(fm, nsnull); nsCOMPtr focusedContent = fm->GetFocusedContent(); nsCOMPtr doc = do_QueryReferent(mDocWeak); bool inDesignMode = doc->HasFlag(NODE_IS_EDITABLE); if (!focusedContent) { // in designMode, nobody gets focus in most cases. if (inDesignMode && OurWindowHasFocus()) { nsCOMPtr docRoot = doc->GetRootElement(); return docRoot.forget(); } return nsnull; } if (inDesignMode) { return OurWindowHasFocus() && nsContentUtils::ContentIsDescendantOf(focusedContent, doc) ? focusedContent.forget() : nsnull; } // We're HTML editor for contenteditable // If the focused content isn't editable, or it has independent selection, // we don't have focus. if (!focusedContent->HasFlag(NODE_IS_EDITABLE) || focusedContent->HasIndependentSelection()) { return nsnull; } // If our window is focused, we're focused. return OurWindowHasFocus() ? focusedContent.forget() : nsnull; } bool nsHTMLEditor::IsActiveInDOMWindow() { NS_ENSURE_TRUE(mDocWeak, false); nsFocusManager* fm = nsFocusManager::GetFocusManager(); NS_ENSURE_TRUE(fm, false); nsCOMPtr doc = do_QueryReferent(mDocWeak); bool inDesignMode = doc->HasFlag(NODE_IS_EDITABLE); // If we're in designMode, we're always active in the DOM window. if (inDesignMode) { return true; } nsPIDOMWindow* ourWindow = doc->GetWindow(); nsCOMPtr win; nsIContent* content = nsFocusManager::GetFocusedDescendant(ourWindow, false, getter_AddRefs(win)); if (!content) { return false; } // We're HTML editor for contenteditable // If the active content isn't editable, or it has independent selection, // we're not active). if (!content->HasFlag(NODE_IS_EDITABLE) || content->HasIndependentSelection()) { return false; } return true; } dom::Element* nsHTMLEditor::GetActiveEditingHost() { NS_ENSURE_TRUE(mDocWeak, nsnull); nsCOMPtr doc = do_QueryReferent(mDocWeak); NS_ENSURE_TRUE(doc, nsnull); if (doc->HasFlag(NODE_IS_EDITABLE)) { return doc->GetBodyElement(); } // We're HTML editor for contenteditable nsCOMPtr selection; nsresult rv = GetSelection(getter_AddRefs(selection)); NS_ENSURE_SUCCESS(rv, nsnull); nsCOMPtr focusNode; rv = selection->GetFocusNode(getter_AddRefs(focusNode)); NS_ENSURE_SUCCESS(rv, nsnull); nsCOMPtr content = do_QueryInterface(focusNode); if (!content) { return nsnull; } // If the active content isn't editable, or it has independent selection, // we're not active. if (!content->HasFlag(NODE_IS_EDITABLE) || content->HasIndependentSelection()) { return nsnull; } return content->GetEditingHost(); } already_AddRefed nsHTMLEditor::GetDOMEventTarget() { // Don't use getDocument here, because we have no way of knowing // whether Init() was ever called. So we need to get the document // ourselves, if it exists. NS_PRECONDITION(mDocWeak, "This editor has not been initialized yet"); nsCOMPtr target = do_QueryReferent(mDocWeak.get()); return target.forget(); } bool nsHTMLEditor::ShouldReplaceRootElement() { if (!mRootElement) { // If we don't know what is our root element, we should find our root. return true; } // If we temporary set document root element to mRootElement, but there is // body element now, we should replace the root element by the body element. nsCOMPtr docBody; GetBodyElement(getter_AddRefs(docBody)); return !SameCOMIdentity(docBody, mRootElement); } void nsHTMLEditor::ResetRootElementAndEventTarget() { nsCOMPtr kungFuDeathGrip(this); // Need to remove the event listeners first because BeginningOfDocument // could set a new root (and event target is set by InstallEventListeners()) // and we won't be able to remove them from the old event target then. RemoveEventListeners(); mRootElement = nsnull; nsresult rv = InstallEventListeners(); if (NS_FAILED(rv)) { return; } // We must have mRootElement now. nsCOMPtr root; rv = GetRootElement(getter_AddRefs(root)); if (NS_FAILED(rv) || !mRootElement) { return; } rv = BeginningOfDocument(); if (NS_FAILED(rv)) { return; } // When this editor has focus, we need to reset the selection limiter to // new root. Otherwise, that is going to be done when this gets focus. nsCOMPtr node = GetFocusedNode(); nsCOMPtr target = do_QueryInterface(node); if (target) { InitializeSelection(target); } SyncRealTimeSpell(); } nsresult nsHTMLEditor::GetBodyElement(nsIDOMHTMLElement** aBody) { NS_PRECONDITION(mDocWeak, "bad state, null mDocWeak"); nsCOMPtr htmlDoc = do_QueryReferent(mDocWeak); if (!htmlDoc) { return NS_ERROR_NOT_INITIALIZED; } return htmlDoc->GetBody(aBody); } already_AddRefed nsHTMLEditor::GetFocusedNode() { nsCOMPtr focusedContent = GetFocusedContent(); if (!focusedContent) { return nsnull; } nsIFocusManager* fm = nsFocusManager::GetFocusManager(); NS_ASSERTION(fm, "Focus manager is null"); nsCOMPtr focusedElement; fm->GetFocusedElement(getter_AddRefs(focusedElement)); if (focusedElement) { nsCOMPtr node = do_QueryInterface(focusedElement); return node.forget(); } nsCOMPtr doc = do_QueryReferent(mDocWeak); return doc.forget(); } bool nsHTMLEditor::OurWindowHasFocus() { NS_ENSURE_TRUE(mDocWeak, false); nsIFocusManager* fm = nsFocusManager::GetFocusManager(); NS_ENSURE_TRUE(fm, false); nsCOMPtr focusedWindow; fm->GetFocusedWindow(getter_AddRefs(focusedWindow)); if (!focusedWindow) { return false; } nsCOMPtr doc = do_QueryReferent(mDocWeak); nsCOMPtr ourWindow = do_QueryInterface(doc->GetWindow()); return ourWindow == focusedWindow; } bool nsHTMLEditor::IsAcceptableInputEvent(nsIDOMEvent* aEvent) { if (!nsEditor::IsAcceptableInputEvent(aEvent)) { return false; } NS_ENSURE_TRUE(mDocWeak, false); nsCOMPtr target; aEvent->GetTarget(getter_AddRefs(target)); NS_ENSURE_TRUE(target, false); nsCOMPtr document = do_QueryReferent(mDocWeak); if (document->HasFlag(NODE_IS_EDITABLE)) { // If this editor is in designMode and the event target is the document, // the event is for this editor. nsCOMPtr targetDocument = do_QueryInterface(target); if (targetDocument) { return targetDocument == document; } // Otherwise, check whether the event target is in this document or not. nsCOMPtr targetContent = do_QueryInterface(target); NS_ENSURE_TRUE(targetContent, false); return document == targetContent->GetCurrentDoc(); } // This HTML editor is for contenteditable. We need to check the validity of // the target. nsCOMPtr targetContent = do_QueryInterface(target); NS_ENSURE_TRUE(targetContent, false); // If the event is a mouse event, we need to check if the target content is // the focused editing host or its descendant. nsCOMPtr mouseEvent = do_QueryInterface(aEvent); if (mouseEvent) { nsIContent* editingHost = GetActiveEditingHost(); // If there is no active editing host, we cannot handle the mouse event // correctly. if (!editingHost) { return false; } // If clicked on non-editable root element but the body element is the // active editing host, we should assume that the click event is targetted. if (targetContent == document->GetRootElement() && !targetContent->HasFlag(NODE_IS_EDITABLE) && editingHost == document->GetBodyElement()) { targetContent = editingHost; } // If the target element is neither the active editing host nor a descendant // of it, we may not be able to handle the event. if (!nsContentUtils::ContentIsDescendantOf(targetContent, editingHost)) { return false; } // If the clicked element has an independent selection, we shouldn't // handle this click event. if (targetContent->HasIndependentSelection()) { return false; } // If the target content is editable, we should handle this event. return targetContent->HasFlag(NODE_IS_EDITABLE); } // If the target of the other events which target focused element isn't // editable or has an independent selection, this editor shouldn't handle the // event. if (!targetContent->HasFlag(NODE_IS_EDITABLE) || targetContent->HasIndependentSelection()) { return false; } // Finally, check whether we're actually focused or not. When we're not // focused, we should ignore the dispatched event by script (or something) // because content editable element needs selection in itself for editing. // However, when we're not focused, it's not guaranteed. return IsActiveInDOMWindow(); } NS_IMETHODIMP nsHTMLEditor::GetPreferredIMEState(IMEState *aState) { // HTML editor don't prefer the CSS ime-mode because IE didn't do so too. aState->mOpen = IMEState::DONT_CHANGE_OPEN_STATE; if (IsReadonly() || IsDisabled()) { aState->mEnabled = IMEState::DISABLED; } else { aState->mEnabled = IMEState::ENABLED; } return NS_OK; } already_AddRefed nsHTMLEditor::GetInputEventTargetContent() { nsCOMPtr target = GetActiveEditingHost(); return target.forget(); } bool nsHTMLEditor::IsEditable(nsIContent* aNode) { if (!nsPlaintextEditor::IsEditable(aNode)) { return false; } if (aNode->IsElement()) { // If we're dealing with an element, then ask it whether it's editable. return aNode->IsEditable(); } // We might be dealing with a text node for example, which we always consider // to be editable. return true; } // virtual MOZ_OVERRIDE dom::Element* nsHTMLEditor::GetEditorRoot() { return GetActiveEditingHost(); }