gecko-dev/editor/base/nsEditorEventListeners.cpp

1452 строки
37 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsEditorEventListeners.h"
#include "nsEditor.h"
#include "nsIDOMDocument.h"
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsIDOMElement.h"
#include "nsIDOMSelection.h"
#include "nsIDOMCharacterData.h"
#include "nsIEditProperty.h"
#include "nsISupportsArray.h"
#include "nsVoidArray.h"
#include "nsString.h"
#include "nsIStringStream.h"
#include "nsIDOMUIEvent.h"
#include "nsIDOMNSUIEvent.h"
// for testing only
#include "nsIHTMLEditor.h"
// end for testing only
// Drag & Drop, Clipboard
#include "nsIServiceManager.h"
#include "nsWidgetsCID.h"
#include "nsIClipboard.h"
#include "nsIDragService.h"
#include "nsIDragSession.h"
#include "nsITransferable.h"
#include "nsIFormatConverter.h"
// Drag & Drop, Clipboard Support
static NS_DEFINE_CID(kCDragServiceCID, NS_DRAGSERVICE_CID);
static NS_DEFINE_CID(kCTransferableCID, NS_TRANSFERABLE_CID);
static NS_DEFINE_IID(kCDataFlavorCID, NS_DATAFLAVOR_CID);
static NS_DEFINE_IID(kCXIFFormatConverterCID, NS_XIFFORMATCONVERTER_CID);
/*
* nsTextEditorKeyListener implementation
*/
NS_IMPL_ADDREF(nsTextEditorKeyListener)
NS_IMPL_RELEASE(nsTextEditorKeyListener)
nsTextEditorKeyListener::nsTextEditorKeyListener()
{
NS_INIT_REFCNT();
}
nsTextEditorKeyListener::~nsTextEditorKeyListener()
{
}
nsresult
nsTextEditorKeyListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMEventListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMKeyListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMKeyListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsTextEditorKeyListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
// individual key handlers return NS_OK to indicate NOT consumed
// by default, an error is returned indicating event is consumed
// joki is fixing this interface.
nsresult
nsTextEditorKeyListener::KeyDown(nsIDOMEvent* aKeyEvent)
{
PRUint32 keyCode;
PRBool isShift;
PRBool ctrlKey;
nsCOMPtr<nsIDOMUIEvent>uiEvent;
uiEvent = do_QueryInterface(aKeyEvent);
if (!uiEvent) {
//non-key event passed to keydown. bad things.
return NS_OK;
}
if (NS_SUCCEEDED(uiEvent->GetKeyCode(&keyCode)) &&
NS_SUCCEEDED(uiEvent->GetShiftKey(&isShift)) &&
NS_SUCCEEDED(uiEvent->GetCtrlKey(&ctrlKey))
) {
PRBool keyProcessed;
ProcessShortCutKeys(aKeyEvent, keyProcessed);
if (PR_FALSE==keyProcessed)
{
switch(keyCode) {
// case nsIDOMUIEvent::VK_BACK:
// mEditor->DeleteSelection(nsIEditor::eDeleteLeft);
// break;
case nsIDOMUIEvent::VK_DELETE:
mEditor->DeleteSelection(nsIEditor::eDeleteRight);
break;
// case nsIDOMUIEvent::VK_RETURN:
//case nsIDOMUIEvent::VK_ENTER: // why does this not exist?
// Need to implement creation of either <P> or <BR> nodes.
// mEditor->InsertBreak();
// break;
case nsIDOMUIEvent::VK_LEFT:
case nsIDOMUIEvent::VK_RIGHT:
case nsIDOMUIEvent::VK_UP:
case nsIDOMUIEvent::VK_DOWN:
// these have already been handled in nsRangeList. Why are we getting them
// again here (Mac)? In switch to avoid putting in bogus chars.
//return NS_OK to allow page scrolling.
return NS_OK;
break;
case nsIDOMUIEvent::VK_HOME:
case nsIDOMUIEvent::VK_END:
// who handles these?
#if DEBUG
printf("Key not handled\n");
#endif
return NS_OK;
break;
case nsIDOMUIEvent::VK_PAGE_UP:
case nsIDOMUIEvent::VK_PAGE_DOWN:
//return NS_OK to allow page scrolling.
return NS_OK;
break;
default:
return NS_OK; // this indicates that we have not handled the keyDown event in any way.
}
}
}
return NS_ERROR_BASE;
}
nsresult
nsTextEditorKeyListener::KeyUp(nsIDOMEvent* aKeyEvent)
{
return NS_OK;
}
nsresult
nsTextEditorKeyListener::KeyPress(nsIDOMEvent* aKeyEvent)
{
nsAutoString key;
PRUint32 character;
PRUint32 keyCode;
nsCOMPtr<nsIDOMUIEvent>uiEvent;
uiEvent = do_QueryInterface(aKeyEvent);
if (!uiEvent) {
//non-key event passed to keydown. bad things.
return NS_OK;
}
//
// look at the keyCode if it is return or backspace, process it
// we handle these two special characters here because it makes windows integration
// eaiser
//
PRBool ctrlKey, altKey, metaKey;
uiEvent->GetCtrlKey(&ctrlKey);
uiEvent->GetAltKey(&altKey);
uiEvent->GetMetaKey(&metaKey);
if (metaKey)
return NS_OK; // don't consume
if (NS_SUCCEEDED(uiEvent->GetKeyCode(&keyCode)))
{
if (nsIDOMUIEvent::VK_BACK==keyCode) {
mEditor->DeleteSelection(nsIEditor::eDeleteLeft);
return NS_ERROR_BASE; // consumed
}
if (nsIDOMUIEvent::VK_RETURN==keyCode) {
mEditor->InsertBreak();
return NS_ERROR_BASE; // consumed
}
}
if ((PR_FALSE==altKey) && (PR_FALSE==ctrlKey) &&
(NS_SUCCEEDED(uiEvent->GetCharCode(&character))))
{
key += character;
mEditor->InsertText(key);
}
return NS_ERROR_BASE; // consumed
}
/* these includes are for debug only. this module should never instantiate it's own transactions */
#include "SplitElementTxn.h"
#include "TransactionFactory.h"
nsresult
nsTextEditorKeyListener::ProcessShortCutKeys(nsIDOMEvent* aKeyEvent, PRBool& aProcessed)
{
aProcessed=PR_FALSE;
PRUint32 keyCode;
PRBool isShift;
PRBool ctrlKey;
PRBool altKey;
nsCOMPtr<nsIDOMUIEvent>uiEvent;
uiEvent = do_QueryInterface(aKeyEvent);
if (!uiEvent) {
//non-key event passed in. bad things.
return NS_OK;
}
if (NS_SUCCEEDED(uiEvent->GetKeyCode(&keyCode)) &&
NS_SUCCEEDED(uiEvent->GetShiftKey(&isShift)) &&
NS_SUCCEEDED(uiEvent->GetCtrlKey(&ctrlKey)) &&
NS_SUCCEEDED(uiEvent->GetAltKey(&altKey))
)
{
if (PR_TRUE==ctrlKey) {
aProcessed = PR_TRUE;
}
// swallow all control keys
// XXX: please please please get these mappings from an external source!
switch (keyCode)
{
// XXX: hard-coded select all
case nsIDOMUIEvent::VK_A:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
mEditor->SelectAll();
}
break;
// XXX: hard-coded cut
case nsIDOMUIEvent::VK_X:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
mEditor->Cut();
}
else if (PR_TRUE==altKey)
{
printf("alt X\n");
aProcessed=PR_TRUE;
nsString output;
nsresult res = NS_ERROR_FAILURE;
nsString format;
if (isShift)
format = "text/plain";
else
format = "text/html";
res = mEditor->OutputToString(output, format,
nsEditor::EditorOutputFormatted);
#if 0
nsCOMPtr<nsIHTMLEditor> htmlEditor (do_QueryInterface(mEditor));
if (htmlEditor)
{
if (isShift)
res = htmlEditor->OutputTextToString(output, PR_TRUE, PR_FALSE);
else
res = htmlEditor->OutputHTMLToString(output, PR_FALSE);
}
else
{
nsCOMPtr<nsITextEditor> textEditor (do_QueryInterface(mEditor));
if (textEditor)
{
if (isShift)
res = textEditor->OutputTextToString(output, PR_TRUE, PR_FALSE);
else
res = textEditor->OutputHTMLToString(output, PR_FALSE);
}
}
#endif
if (NS_SUCCEEDED(res))
{
char* buf = output.ToNewCString();
if (buf)
{
puts(buf);
delete[] buf;
}
}
}
break;
// XXX: hard-coded copy
case nsIDOMUIEvent::VK_C:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
mEditor->Copy();
}
else if (PR_TRUE==altKey)
{
printf("Getting number of columns\n");
aProcessed=PR_TRUE;
PRInt32 wrap;
if (NS_SUCCEEDED(mEditor->GetBodyWrapWidth(&wrap)))
printf("Currently wrapping to %d\n", wrap);
else
printf("GetBodyWrapWidth returned an error\n");
}
break;
case nsIDOMUIEvent::VK_OPEN_BRACKET:
// hard coded "Decrease wrap size"
if (PR_TRUE==altKey)
{
aProcessed=PR_TRUE;
PRInt32 wrap;
if (!NS_SUCCEEDED(mEditor->GetBodyWrapWidth(&wrap)))
{
printf("GetBodyWrapWidth returned an error\n");
break;
}
mEditor->SetBodyWrapWidth(wrap - 5);
if (!NS_SUCCEEDED(mEditor->GetBodyWrapWidth(&wrap)))
{
printf("Second GetBodyWrapWidth returned an error\n");
break;
}
else printf("Now wrapping to %d\n", wrap);
}
break;
case nsIDOMUIEvent::VK_CLOSE_BRACKET:
// hard coded "Increase wrap size"
if (PR_TRUE==altKey)
{
aProcessed=PR_TRUE;
PRInt32 wrap;
if (!NS_SUCCEEDED(mEditor->GetBodyWrapWidth(&wrap)))
{
printf("GetBodyWrapWidth returned an error\n");
break;
}
mEditor->SetBodyWrapWidth(wrap + 5);
if (!NS_SUCCEEDED(mEditor->GetBodyWrapWidth(&wrap)))
{
printf("Second GetBodyWrapWidth returned an error\n");
break;
}
else printf("Now wrapping to %d\n", wrap);
}
break;
// XXX: hard-coded paste
case nsIDOMUIEvent::VK_V:
if (PR_TRUE==ctrlKey)
{
printf("control-v\n");
if (mEditor)
{
if (altKey)
mEditor->PasteAsQuotation();
else
mEditor->Paste();
}
}
break;
// XXX: hard-coded undo
case nsIDOMUIEvent::VK_Z:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
mEditor->Undo(1);
}
break;
// XXX: hard-coded redo
case nsIDOMUIEvent::VK_Y:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
mEditor->Redo(1);
}
break;
// hard-coded ChangeTextAttributes test -- italics
case nsIDOMUIEvent::VK_I:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
PRBool any = PR_FALSE;
PRBool all = PR_FALSE;
PRBool first = PR_FALSE;
mEditor->GetTextProperty(nsIEditProperty::i, nsnull, nsnull, first, any, all);
if (PR_FALSE==first) {
mEditor->SetTextProperty(nsIEditProperty::i, nsnull, nsnull);
}
else {
mEditor->RemoveTextProperty(nsIEditProperty::i, nsnull);
}
}
}
// Hardcoded Insert Arbitrary HTML
else if (PR_TRUE==altKey)
{
aProcessed=PR_TRUE;
nsCOMPtr<nsIHTMLEditor> htmlEditor (do_QueryInterface(mEditor));
if (htmlEditor)
{
nsString nsstr ("This is <b>bold <em>and emphasized</em></b> text");
htmlEditor->InsertHTML(nsstr);
}
}
break;
// hard-coded ChangeTextAttributes test -- bold
case nsIDOMUIEvent::VK_B:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
PRBool any = PR_FALSE;
PRBool all = PR_FALSE;
PRBool first = PR_FALSE;
mEditor->GetTextProperty(nsIEditProperty::b, nsnull, nsnull, first, any, all);
if (PR_FALSE==first) {
mEditor->SetTextProperty(nsIEditProperty::b, nsnull, nsnull);
}
else {
mEditor->RemoveTextProperty(nsIEditProperty::b, nsnull);
}
}
}
break;
// hard-coded ChangeTextAttributes test -- underline
case nsIDOMUIEvent::VK_U:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
PRBool any = PR_FALSE;
PRBool all = PR_FALSE;
PRBool first = PR_FALSE;
mEditor->GetTextProperty(nsIEditProperty::u, nsnull, nsnull, first, any, all);
if (PR_FALSE==first) {
mEditor->SetTextProperty(nsIEditProperty::u, nsnull, nsnull);
}
else {
mEditor->RemoveTextProperty(nsIEditProperty::u, nsnull);
}
}
}
break;
// hard-coded ChangeTextAttributes test -- font color red
case nsIDOMUIEvent::VK_1:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
PRBool any = PR_FALSE;
PRBool all = PR_FALSE;
PRBool first = PR_FALSE;
nsAutoString color = "COLOR";
nsAutoString value = "red";
mEditor->GetTextProperty(nsIEditProperty::font, &color, &value, first, any, all);
if (!all) {
mEditor->SetTextProperty(nsIEditProperty::font, &color, &value);
}
else {
printf("NOOP: all selected text is already red\n");
}
}
}
break;
// hard-coded ChangeTextAttributes test -- remove font color
case nsIDOMUIEvent::VK_2:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
PRBool any = PR_FALSE;
PRBool all = PR_FALSE;
PRBool first = PR_FALSE;
nsAutoString color = "COLOR";
mEditor->GetTextProperty(nsIEditProperty::font, &color, nsnull, first, any, all);
if (any) {
mEditor->RemoveTextProperty(nsIEditProperty::font, &color);
}
else {
printf("NOOP: no color set\n");
}
}
}
break;
// hard-coded ChangeTextAttributes test -- font size +2
case nsIDOMUIEvent::VK_3:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
//PRBool any = PR_FALSE;
//PRBool all = PR_FALSE;
//PRBool first = PR_FALSE;
nsAutoString prop = "SIZE";
nsAutoString value = "+2";
mEditor->SetTextProperty(nsIEditProperty::font, &prop, &value);
}
}
break;
// hard-coded ChangeTextAttributes test -- font size -2
case nsIDOMUIEvent::VK_4:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
//PRBool any = PR_FALSE;
//PRBool all = PR_FALSE;
//PRBool first = PR_FALSE;
nsAutoString prop = "SIZE";
nsAutoString value = "-2";
mEditor->SetTextProperty(nsIEditProperty::font, &prop, &value);
}
}
break;
// hard-coded ChangeTextAttributes test -- font face helvetica
case nsIDOMUIEvent::VK_5:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
//PRBool any = PR_FALSE;
//PRBool all = PR_FALSE;
//PRBool first = PR_FALSE;
nsAutoString prop = "FACE";
nsAutoString value = "helvetica";
mEditor->SetTextProperty(nsIEditProperty::font, &prop, &value);
}
}
break;
// hard-coded ChangeTextAttributes test -- font face times
case nsIDOMUIEvent::VK_6:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
// XXX: move this logic down into texteditor rules delegate
// should just call mEditor->ChangeTextProperty(prop)
//PRBool any = PR_FALSE;
//PRBool all = PR_FALSE;
//PRBool first = PR_FALSE;
nsAutoString prop = "FACE";
nsAutoString value = "times";
mEditor->SetTextProperty(nsIEditProperty::font, &prop, &value);
}
}
break;
// hard-coded change structure test -- transform block H1
case nsIDOMUIEvent::VK_7:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
nsCOMPtr<nsIHTMLEditor>htmlEditor;
htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor)
{
nsAutoString tag;
nsIEditProperty::h1->ToString(tag);
htmlEditor->ReplaceBlockParent(tag);
}
}
}
break;
// hard-coded change structure test -- transform block H2
case nsIDOMUIEvent::VK_8:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
nsCOMPtr<nsIHTMLEditor>htmlEditor;
htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor)
{
nsAutoString tag;
nsIEditProperty::h2->ToString(tag);
htmlEditor->ReplaceBlockParent(tag);
}
}
}
break;
// hard-coded change structure test -- normal
case nsIDOMUIEvent::VK_9:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
nsCOMPtr<nsIHTMLEditor>htmlEditor;
htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor) {
htmlEditor->RemoveParagraphStyle();
}
}
}
break;
// hard-coded change structure test -- GetParagraphStyle
case nsIDOMUIEvent::VK_0:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
nsCOMPtr<nsIHTMLEditor>htmlEditor;
htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor)
{
printf("testing GetParagraphStyle\n");
nsStringArray styles;
nsresult result = htmlEditor->GetParagraphStyle(&styles);
if (NS_SUCCEEDED(result))
{
PRInt32 count = styles.Count();
PRInt32 i;
for (i=0; i<count; i++)
{
nsString *tag = styles.StringAt(i);
char *tagCString = tag->ToNewCString();
printf("%s ", tagCString);
delete [] tagCString;
}
printf("\n");
}
}
}
}
break;
// hard-coded change structure test -- block blockquote (indent)
case nsIDOMUIEvent::VK_COMMA:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
nsCOMPtr<nsIHTMLEditor>htmlEditor;
htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor)
{
nsAutoString tag;
nsIEditProperty::blockquote->ToString(tag);
htmlEditor->AddBlockParent(tag);
}
}
}
break;
// hard-coded change structure test -- un-BlockQuote
case nsIDOMUIEvent::VK_PERIOD:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
nsCOMPtr<nsIHTMLEditor>htmlEditor;
htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor)
{
nsAutoString tag;
nsIEditProperty::blockquote->ToString(tag);
htmlEditor->RemoveParent(tag);
}
}
}
break;
#ifdef NS_DEBUG
// hard-coded Text Editor Unit Test
case nsIDOMUIEvent::VK_T:
if (PR_TRUE==ctrlKey)
{
if (mEditor)
{
PRInt32 numTests, numFailed;
// the unit tests are only exposed through nsIEditor
nsCOMPtr<nsIEditor> editor = do_QueryInterface(mEditor);
if (editor)
editor->DebugUnitTests(&numTests, &numFailed);
}
}
break;
#endif
}
}
return NS_OK;
}
/*
* nsTextEditorMouseListener implementation
*/
NS_IMPL_ADDREF(nsTextEditorMouseListener)
NS_IMPL_RELEASE(nsTextEditorMouseListener)
nsTextEditorMouseListener::nsTextEditorMouseListener()
{
NS_INIT_REFCNT();
}
nsTextEditorMouseListener::~nsTextEditorMouseListener()
{
}
nsresult
nsTextEditorMouseListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMEventListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMMouseListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMMouseListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsTextEditorMouseListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
nsresult
nsTextEditorMouseListener::MouseDown(nsIDOMEvent* aMouseEvent)
{
if (!aMouseEvent)
return NS_OK; // NS_OK means "we didn't process the event". Go figure.
nsCOMPtr<nsIDOMUIEvent>uiEvent;
uiEvent = do_QueryInterface(aMouseEvent);
if (!uiEvent) {
//non-ui event passed in. bad things.
return NS_OK;
}
// We only do anything special for middle-mouse click (paste);
// ignore all other events.
PRUint16 button = 0;
uiEvent->GetButton(&button);
if (button != 2)
return NS_OK;
nsCOMPtr<nsIEditor> editor (do_QueryInterface(mEditor));
if (!editor)
return NS_ERROR_FAILURE;
// Set the selection to the point under the mouse cursor:
nsCOMPtr<nsIDOMNSUIEvent> mouseEvent (do_QueryInterface(aMouseEvent));
if (!mouseEvent)
return NS_ERROR_BASE; // NS_ERROR_BASE means "We did process the event".
nsCOMPtr<nsIDOMNode> parent;
if (!NS_SUCCEEDED(mouseEvent->GetRangeParent(getter_AddRefs(parent))))
return NS_ERROR_BASE; // NS_ERROR_BASE means "We did process the event".
PRInt32 offset = 0;
if (!NS_SUCCEEDED(mouseEvent->GetRangeOffset(&offset)))
return NS_ERROR_BASE; // NS_ERROR_BASE means "We did process the event".
nsCOMPtr<nsIDOMSelection> selection;
if (NS_SUCCEEDED(editor->GetSelection(getter_AddRefs(selection))))
(void)selection->Collapse(parent, offset);
// If the ctrl key is pressed, we'll do paste as quotation.
// Would've used the alt key, but the kde wmgr treats alt-middle specially.
PRBool ctrlKey = PR_FALSE;
uiEvent->GetCtrlKey(&ctrlKey);
if (ctrlKey)
return editor->PasteAsQuotation();
return editor->Paste();
}
nsresult
nsTextEditorMouseListener::MouseUp(nsIDOMEvent* aMouseEvent)
{
return NS_OK;
}
nsresult
nsTextEditorMouseListener::MouseClick(nsIDOMEvent* aMouseEvent)
{
return NS_OK;
}
nsresult
nsTextEditorMouseListener::MouseDblClick(nsIDOMEvent* aMouseEvent)
{
if (mEditor)
{
nsIHTMLEditor * HTMLEditor;
if (NS_SUCCEEDED(mEditor->QueryInterface(nsIHTMLEditor::GetIID(), (void**)&HTMLEditor)))
{
nsCOMPtr<nsIDOMElement> selectedElement;
if (NS_SUCCEEDED(HTMLEditor->GetSelectedElement("", getter_AddRefs(selectedElement))) && selectedElement)
{
nsAutoString TagName;
selectedElement->GetTagName(TagName);
TagName.ToLowerCase();
#if DEBUG_cmanske
char szTagName[64];
TagName.ToCString(szTagName, 64);
printf("Single Selected element found: %s\n", szTagName);
#endif
}
}
}
return NS_OK;
}
nsresult
nsTextEditorMouseListener::MouseOver(nsIDOMEvent* aMouseEvent)
{
return NS_OK;
}
nsresult
nsTextEditorMouseListener::MouseOut(nsIDOMEvent* aMouseEvent)
{
return NS_OK;
}
/*
* nsTextEditorMouseListener implementation
*/
NS_IMPL_ADDREF(nsTextEditorTextListener)
NS_IMPL_RELEASE(nsTextEditorTextListener)
nsTextEditorTextListener::nsTextEditorTextListener()
: mCommitText(PR_FALSE),
mInTransaction(PR_FALSE)
{
NS_INIT_REFCNT();
}
nsTextEditorTextListener::~nsTextEditorTextListener()
{
}
nsresult
nsTextEditorTextListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMEventListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMTextListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMTextListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsTextEditorTextListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
nsresult
nsTextEditorTextListener::HandleText(nsIDOMEvent* aTextEvent)
{
nsString composedText;
nsresult result;
nsCOMPtr<nsIDOMUIEvent>uiEvent;
nsIDOMTextRangeList *textRangeList;
uiEvent = do_QueryInterface(aTextEvent);
if (!uiEvent) {
//non-ui event passed in. bad things.
return NS_OK;
}
uiEvent->GetText(composedText);
uiEvent->GetInputRange(&textRangeList);
textRangeList->AddRef();
result = mEditor->SetCompositionString(composedText,textRangeList);
return result;
}
/*
* nsTextEditorDragListener implementation
*/
NS_IMPL_ADDREF(nsTextEditorDragListener)
NS_IMPL_RELEASE(nsTextEditorDragListener)
nsTextEditorDragListener::nsTextEditorDragListener()
{
NS_INIT_REFCNT();
}
nsTextEditorDragListener::~nsTextEditorDragListener()
{
}
nsresult
nsTextEditorDragListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMEventListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMDragListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMDragListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsTextEditorDragListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
nsresult
nsTextEditorDragListener::DragEnter(nsIDOMEvent* aDragEvent)
{
nsIDragService* dragService;
nsresult rv = nsServiceManager::GetService(kCDragServiceCID,
nsIDragService::GetIID(),
(nsISupports **)&dragService);
if (NS_OK == rv) {
nsCOMPtr<nsIDragSession> dragSession(do_QueryInterface(dragService));
nsAutoString textFlavor(kTextMime);
if (dragSession &&
(NS_OK == dragSession->IsDataFlavorSupported(&textFlavor))) {
dragSession->SetCanDrop(PR_TRUE);
}
nsServiceManager::ReleaseService(kCDragServiceCID, dragService);
}
return NS_OK;
}
nsresult
nsTextEditorDragListener::DragOver(nsIDOMEvent* aDragEvent)
{
nsIDragService* dragService;
nsresult rv = nsServiceManager::GetService(kCDragServiceCID,
nsIDragService::GetIID(),
(nsISupports **)&dragService);
if (NS_OK == rv) {
nsCOMPtr<nsIDragSession> dragSession(do_QueryInterface(dragService));
nsAutoString textFlavor(kTextMime);
if (dragSession && NS_OK == dragSession->IsDataFlavorSupported(&textFlavor)) {
dragSession->SetCanDrop(PR_TRUE);
}
nsServiceManager::ReleaseService(kCDragServiceCID, dragService);
}
return NS_OK;
}
nsresult
nsTextEditorDragListener::DragExit(nsIDOMEvent* aDragEvent)
{
return NS_OK;
}
nsresult
nsTextEditorDragListener::DragDrop(nsIDOMEvent* aMouseEvent)
{
// String for doing paste
nsString stuffToPaste;
// Create drag service for getting state of drag
nsIDragService* dragService;
nsresult rv = nsServiceManager::GetService(kCDragServiceCID,
nsIDragService::GetIID(),
(nsISupports **)&dragService);
if (NS_OK == rv) {
nsCOMPtr<nsIDragSession> dragSession(do_QueryInterface(dragService));
if (dragSession) {
// Create transferable for getting the drag data
nsCOMPtr<nsITransferable> trans;
rv = nsComponentManager::CreateInstance(kCTransferableCID, nsnull,
nsITransferable::GetIID(),
(void**) getter_AddRefs(trans));
if ( NS_SUCCEEDED(rv) && trans ) {
// Add the text Flavor to the transferable,
// because that is the only type of data we are
// looking for at the moment.
nsAutoString textMime (kTextMime);
trans->AddDataFlavor(&textMime);
//trans->AddDataFlavor(mImageDataFlavor);
// Fill the transferable with data for each drag item in succession
PRUint32 numItems = 0;
if (NS_SUCCEEDED(dragSession->GetNumDropItems(&numItems))) {
printf("Num Drop Items %d\n", numItems);
PRUint32 i;
for (i=0;i<numItems;++i) {
if (NS_SUCCEEDED(dragSession->GetData(trans, i))) {
// Get the string data out of the transferable
// Note: the transferable owns the pointer to the data
char *str = 0;
PRUint32 len;
trans->GetAnyTransferData(&textMime, (void **)&str, &len);
// If the string was not empty then paste it in
if (str) {
stuffToPaste.SetString(str, len);
mEditor->InsertText(stuffToPaste);
dragSession->SetCanDrop(PR_TRUE);
}
// XXX This is where image support might go
//void * data;
//trans->GetTransferData(mImageDataFlavor, (void **)&data, &len);
}
} // foreach drag item
}
} // if valid transferable
} // if valid drag session
nsServiceManager::ReleaseService(kCDragServiceCID, dragService);
} // if valid drag service
return NS_OK;
}
nsTextEditorCompositionListener::nsTextEditorCompositionListener()
{
NS_INIT_REFCNT();
}
nsTextEditorCompositionListener::~nsTextEditorCompositionListener()
{
}
nsresult
nsTextEditorCompositionListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMEventListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(nsIDOMCompositionListener::GetIID())) {
*aInstancePtr = (void*)(nsIDOMCompositionListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMPL_ADDREF(nsTextEditorCompositionListener)
NS_IMPL_RELEASE(nsTextEditorCompositionListener)
nsresult
nsTextEditorCompositionListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
nsresult
nsTextEditorCompositionListener::HandleStartComposition(nsIDOMEvent* aCompositionEvent)
{
return mEditor->BeginComposition();
}
nsresult
nsTextEditorCompositionListener::HandleEndComposition(nsIDOMEvent* aCompositionEvent)
{
return mEditor->EndComposition();
}
/*
* Factory functions
*/
nsresult
NS_NewEditorKeyListener(nsIDOMEventListener ** aInstancePtrResult,
nsITextEditor *aEditor)
{
nsTextEditorKeyListener* it = new nsTextEditorKeyListener();
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetEditor(aEditor);
return it->QueryInterface(nsIDOMEventListener::GetIID(), (void **) aInstancePtrResult);
}
nsresult
NS_NewEditorMouseListener(nsIDOMEventListener ** aInstancePtrResult,
nsITextEditor *aEditor)
{
nsTextEditorMouseListener* it = new nsTextEditorMouseListener();
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetEditor(aEditor);
return it->QueryInterface(nsIDOMEventListener::GetIID(), (void **) aInstancePtrResult);
}
nsresult
NS_NewEditorTextListener(nsIDOMEventListener** aInstancePtrResult, nsITextEditor* aEditor)
{
nsTextEditorTextListener* it = new nsTextEditorTextListener();
if (nsnull==it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetEditor(aEditor);
return it->QueryInterface(nsIDOMEventListener::GetIID(), (void **) aInstancePtrResult);
}
nsresult
NS_NewEditorDragListener(nsIDOMEventListener ** aInstancePtrResult,
nsITextEditor *aEditor)
{
nsTextEditorDragListener* it = new nsTextEditorDragListener();
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetEditor(aEditor);
return it->QueryInterface(nsIDOMEventListener::GetIID(), (void **) aInstancePtrResult);
}
nsresult
NS_NewEditorCompositionListener(nsIDOMEventListener** aInstancePtrResult, nsITextEditor* aEditor)
{
nsTextEditorCompositionListener* it = new nsTextEditorCompositionListener();
if (nsnull==it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetEditor(aEditor);
return it->QueryInterface(nsIDOMEventListener::GetIID(), (void **) aInstancePtrResult);
}
nsresult
NS_NewEditorFocusListener(nsIDOMEventListener ** aInstancePtrResult,
nsITextEditor *aEditor)
{
nsTextEditorFocusListener* it = new nsTextEditorFocusListener();
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetEditor(aEditor);
return it->QueryInterface(nsIDOMEventListener::GetIID(), (void **) aInstancePtrResult);
}
/*
* nsTextEditorFocusListener implementation
*/
NS_IMPL_ADDREF(nsTextEditorFocusListener)
NS_IMPL_RELEASE(nsTextEditorFocusListener)
nsTextEditorFocusListener::nsTextEditorFocusListener()
{
NS_INIT_REFCNT();
}
nsTextEditorFocusListener::~nsTextEditorFocusListener()
{
}
nsresult
nsTextEditorFocusListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
static NS_DEFINE_IID(kIDOMFocusListenerIID, NS_IDOMFOCUSLISTENER_IID);
static NS_DEFINE_IID(kIDOMEventListenerIID, NS_IDOMEVENTLISTENER_IID);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
if (aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*)(nsISupports*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIDOMEventListenerIID)) {
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIDOMFocusListenerIID)) {
*aInstancePtr = (void*)(nsIDOMFocusListener*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsTextEditorFocusListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
nsresult
nsTextEditorFocusListener::Focus(nsIDOMEvent* aDragEvent)
{
// turn on selection and caret
if (mEditor)
{
nsCOMPtr<nsIEditor>editor = do_QueryInterface(mEditor);
if (editor)
{
nsCOMPtr<nsIPresShell>ps;
editor->GetPresShell(getter_AddRefs(ps));
if (ps)
{
ps->SetCaretEnabled(PR_TRUE);
}
nsCOMPtr<nsIDOMDocument>domDoc;
editor->GetDocument(getter_AddRefs(domDoc));
if (domDoc)
{
nsCOMPtr<nsIDocument>doc = do_QueryInterface(domDoc);
if (doc)
{
doc->SetDisplaySelection(PR_TRUE);
}
}
}
}
return NS_OK;
}
nsresult
nsTextEditorFocusListener::Blur(nsIDOMEvent* aDragEvent)
{
// turn off selection and caret
if (mEditor)
{
nsCOMPtr<nsIEditor>editor = do_QueryInterface(mEditor);
if (editor)
{
nsCOMPtr<nsIPresShell>ps;
editor->GetPresShell(getter_AddRefs(ps));
if (ps)
{
ps->SetCaretEnabled(PR_FALSE);
}
nsCOMPtr<nsIDOMDocument>domDoc;
editor->GetDocument(getter_AddRefs(domDoc));
if (domDoc)
{
nsCOMPtr<nsIDocument>doc = do_QueryInterface(domDoc);
if (doc)
{
doc->SetDisplaySelection(PR_FALSE);
}
}
}
}
return NS_OK;
}