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gecko-dev/editor/libeditor/HTMLEditor.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_HTMLEditor_h
#define mozilla_HTMLEditor_h
#include "mozilla/Attributes.h"
#include "mozilla/ComposerCommandsUpdater.h"
#include "mozilla/CSSEditUtils.h"
#include "mozilla/ManualNAC.h"
#include "mozilla/StyleSheet.h"
#include "mozilla/TextEditor.h"
#include "mozilla/TextEditRules.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/File.h"
#include "nsAttrName.h"
#include "nsCOMPtr.h"
#include "nsICSSLoaderObserver.h"
#include "nsIDocumentObserver.h"
#include "nsIDOMEventListener.h"
#include "nsIEditorMailSupport.h"
#include "nsIEditorStyleSheets.h"
#include "nsIEditorUtils.h"
#include "nsIHTMLAbsPosEditor.h"
#include "nsIHTMLEditor.h"
#include "nsIHTMLInlineTableEditor.h"
#include "nsIHTMLObjectResizer.h"
#include "nsITableEditor.h"
#include "nsPoint.h"
#include "nsStubMutationObserver.h"
#include "nsTArray.h"
class nsDocumentFragment;
class nsHTMLDocument;
class nsITransferable;
class nsIClipboard;
class nsIDOMDocument;
class nsILinkHandler;
class nsTableWrapperFrame;
class nsIDOMRange;
class nsRange;
namespace mozilla {
class AutoSelectionSetterAfterTableEdit;
class HTMLEditorEventListener;
class HTMLEditRules;
class ResizerSelectionListener;
class TypeInState;
class WSRunObject;
enum class EditAction : int32_t;
struct PropItem;
template<class T> class OwningNonNull;
namespace dom {
class DocumentFragment;
class Event;
class MouseEvent;
} // namespace dom
namespace widget {
struct IMEState;
} // namespace widget
enum class ParagraphSeparator { div, p, br };
/**
* The HTML editor implementation.<br>
* Use to edit HTML document represented as a DOM tree.
*/
class HTMLEditor final : public TextEditor
, public nsIHTMLEditor
, public nsIHTMLObjectResizer
, public nsIHTMLAbsPosEditor
, public nsITableEditor
, public nsIHTMLInlineTableEditor
, public nsIEditorStyleSheets
, public nsICSSLoaderObserver
, public nsStubMutationObserver
{
private:
enum BlockTransformationType
{
eNoOp,
eReplaceParent = 1,
eInsertParent = 2
};
const char16_t kNBSP = 160;
public:
enum ResizingRequestID
{
kX = 0,
kY = 1,
kWidth = 2,
kHeight = 3
};
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLEditor, TextEditor)
HTMLEditor();
bool GetReturnInParagraphCreatesNewParagraph();
Element* GetSelectionContainer();
// nsISelectionListener overrides
NS_DECL_NSISELECTIONLISTENER
// TextEditor overrides
virtual nsresult Init(nsIDocument& aDoc, Element* aRoot,
nsISelectionController* aSelCon, uint32_t aFlags,
const nsAString& aValue) override;
NS_IMETHOD BeginningOfDocument() override;
virtual nsresult HandleKeyPressEvent(
WidgetKeyboardEvent* aKeyboardEvent) override;
virtual nsIContent* GetFocusedContent() override;
virtual already_AddRefed<nsIContent> GetFocusedContentForIME() override;
virtual bool IsActiveInDOMWindow() override;
virtual dom::EventTarget* GetDOMEventTarget() override;
virtual Element* GetEditorRoot() override;
virtual already_AddRefed<nsIContent> FindSelectionRoot(
nsINode *aNode) override;
virtual bool IsAcceptableInputEvent(WidgetGUIEvent* aGUIEvent) override;
virtual already_AddRefed<nsIContent> GetInputEventTargetContent() override;
using EditorBase::IsEditable;
virtual nsresult RemoveAttributeOrEquivalent(
Element* aElement,
nsAtom* aAttribute,
bool aSuppressTransaction) override;
virtual nsresult SetAttributeOrEquivalent(Element* aElement,
nsAtom* aAttribute,
const nsAString& aValue,
bool aSuppressTransaction) override;
using EditorBase::RemoveAttributeOrEquivalent;
using EditorBase::SetAttributeOrEquivalent;
// nsStubMutationObserver overrides
NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
// nsIHTMLEditor methods
NS_DECL_NSIHTMLEDITOR
// nsIHTMLObjectResizer methods (implemented in HTMLObjectResizer.cpp)
NS_DECL_NSIHTMLOBJECTRESIZER
// nsIHTMLAbsPosEditor methods (implemented in HTMLAbsPositionEditor.cpp)
NS_DECL_NSIHTMLABSPOSEDITOR
// nsIHTMLInlineTableEditor methods (implemented in HTMLInlineTableEditor.cpp)
NS_DECL_NSIHTMLINLINETABLEEDITOR
// XXX Following methods are not overriding but defined here...
nsresult LoadHTML(const nsAString& aInputString);
nsresult GetCSSBackgroundColorState(bool* aMixed, nsAString& aOutColor,
bool aBlockLevel);
nsresult GetHTMLBackgroundColorState(bool* aMixed, nsAString& outColor);
// nsIEditorStyleSheets methods
NS_DECL_NSIEDITORSTYLESHEETS
// nsIEditorMailSupport methods
NS_DECL_NSIEDITORMAILSUPPORT
// nsITableEditor methods
NS_DECL_NSITABLEEDITOR
nsresult GetLastCellInRow(nsINode* aRowNode,
nsINode** aCellNode);
nsresult GetCellFromRange(nsRange* aRange, Element** aCell);
// Miscellaneous
/**
* This sets background on the appropriate container element (table, cell,)
* or calls into nsTextEditor to set the page background.
*/
nsresult SetCSSBackgroundColorWithTransaction(const nsAString& aColor);
nsresult SetHTMLBackgroundColorWithTransaction(const nsAString& aColor);
/**
* GetBlockNodeParent() returns parent or nearest ancestor of aNode if
* there is a block parent. If aAncestorLimiter is not nullptr,
* this stops looking for the result.
*/
static Element* GetBlockNodeParent(nsINode* aNode,
nsINode* aAncestorLimiter = nullptr);
/**
* GetBlock() returns aNode itself, or parent or nearest ancestor of aNode
* if there is a block parent. If aAncestorLimiter is not nullptr,
* this stops looking for the result.
*/
static Element* GetBlock(nsINode& aNode,
nsINode* aAncestorLimiter = nullptr);
void IsNextCharInNodeWhitespace(nsIContent* aContent,
int32_t aOffset,
bool* outIsSpace,
bool* outIsNBSP,
nsIContent** outNode = nullptr,
int32_t* outOffset = 0);
void IsPrevCharInNodeWhitespace(nsIContent* aContent,
int32_t aOffset,
bool* outIsSpace,
bool* outIsNBSP,
nsIContent** outNode = nullptr,
int32_t* outOffset = 0);
// Overrides of EditorBase interface methods
virtual nsresult EndUpdateViewBatch() override;
NS_IMETHOD PreDestroy(bool aDestroyingFrames) override;
virtual nsresult GetPreferredIMEState(widget::IMEState* aState) override;
/**
* @param aElement Must not be null.
*/
static bool NodeIsBlockStatic(const nsINode* aElement);
// non-virtual methods of interface methods
bool AbsolutePositioningEnabled() const
{
return mIsAbsolutelyPositioningEnabled;
}
/**
* returns the deepest absolutely positioned container of the selection
* if it exists or null.
*/
already_AddRefed<Element> GetAbsolutelyPositionedSelectionContainer();
Element* GetPositionedElement() const
{
return mAbsolutelyPositionedObject;
}
/**
* extracts the selection from the normal flow of the document and
* positions it.
* @param aEnabled [IN] true to absolutely position the selection,
* false to put it back in the normal flow
*/
nsresult SetSelectionToAbsoluteOrStatic(bool aEnabled);
/**
* extracts an element from the normal flow of the document and
* positions it, and puts it back in the normal flow.
* @param aElement [IN] the element
* @param aEnabled [IN] true to absolutely position the element,
* false to put it back in the normal flow
*/
nsresult SetPositionToAbsoluteOrStatic(Element& aElement,
bool aEnabled);
/**
* returns the absolute z-index of a positioned element. Never returns 'auto'
* @return the z-index of the element
* @param aElement [IN] the element.
*/
int32_t GetZIndex(Element& aElement);
/**
* adds aChange to the z-index of the currently positioned element.
* @param aChange [IN] relative change to apply to current z-index
*/
nsresult AddZIndex(int32_t aChange);
/**
* adds aChange to the z-index of an arbitrary element.
* @param aElement [IN] the element
* @param aChange [IN] relative change to apply to current z-index of
* the element
* @param aReturn [OUT] the new z-index of the element
*/
nsresult RelativeChangeElementZIndex(Element& aElement, int32_t aChange,
int32_t* aReturn);
nsresult SetInlineProperty(nsAtom* aProperty,
nsAtom* aAttribute,
const nsAString& aValue);
nsresult GetInlineProperty(nsAtom* aProperty,
nsAtom* aAttribute,
const nsAString& aValue,
bool* aFirst,
bool* aAny,
bool* aAll);
nsresult GetInlinePropertyWithAttrValue(nsAtom* aProperty,
nsAtom* aAttr,
const nsAString& aValue,
bool* aFirst,
bool* aAny,
bool* aAll,
nsAString& outValue);
nsresult RemoveInlineProperty(nsAtom* aProperty,
nsAtom* aAttribute);
/**
* SetComposerCommandsUpdater() sets or unsets mComposerCommandsUpdater.
* This will crash in debug build if the editor already has an instance
* but called with another instance.
*/
void SetComposerCommandsUpdater(
ComposerCommandsUpdater* aComposerCommandsUpdater)
{
MOZ_ASSERT(!aComposerCommandsUpdater || !mComposerCommandsUpdater ||
aComposerCommandsUpdater == mComposerCommandsUpdater);
mComposerCommandsUpdater = aComposerCommandsUpdater;
}
protected:
virtual ~HTMLEditor();
using EditorBase::IsBlockNode;
virtual bool IsBlockNode(nsINode *aNode) override;
virtual void
InitializeSelectionAncestorLimit(Selection& aSelection,
nsIContent& aAncestorLimit) override;
public:
// XXX Why don't we move following methods above for grouping by the origins?
NS_IMETHOD SetFlags(uint32_t aFlags) override;
NS_IMETHOD Paste(int32_t aSelectionType) override;
NS_IMETHOD CanPaste(int32_t aSelectionType, bool* aCanPaste) override;
NS_IMETHOD PasteTransferable(nsITransferable* aTransferable) override;
NS_IMETHOD CanPasteTransferable(nsITransferable* aTransferable,
bool* aCanPaste) override;
NS_IMETHOD DebugUnitTests(int32_t* outNumTests,
int32_t* outNumTestsFailed) override;
/**
* All editor operations which alter the doc should be prefaced
* with a call to StartOperation, naming the action and direction.
*/
virtual nsresult StartOperation(EditAction opID,
nsIEditor::EDirection aDirection) override;
/**
* All editor operations which alter the doc should be followed
* with a call to EndOperation.
*/
virtual nsresult EndOperation() override;
/**
* returns true if aParentTag can contain a child of type aChildTag.
*/
virtual bool TagCanContainTag(nsAtom& aParentTag,
nsAtom& aChildTag) const override;
/**
* Returns true if aNode is a container.
*/
virtual bool IsContainer(nsINode* aNode) override;
/**
* Make the given selection span the entire document.
*/
virtual nsresult SelectEntireDocument(Selection* aSelection) override;
/**
* Join together any adjacent editable text nodes in the range.
*/
nsresult CollapseAdjacentTextNodes(nsRange* aRange);
virtual bool AreNodesSameType(nsIContent* aNode1,
nsIContent* aNode2) override;
/**
* DeleteSelectionWithTransaction() removes selected content or content
* around caret with transactions.
*
* @param aDirection How much range should be removed.
* @param aStripWrappers Whether the parent blocks should be removed
* when they become empty.
*/
virtual nsresult
DeleteSelectionWithTransaction(EDirection aAction,
EStripWrappers aStripWrappers) override;
/**
* DeleteNodeWithTransaction() removes aNode from the DOM tree if it's
* modifiable. Note that this is not an override of same method of
* EditorBase.
*
* @param aNode The node to be removed from the DOM tree.
*/
nsresult DeleteNodeWithTransaction(nsINode& aNode);
NS_IMETHOD DeleteNode(nsIDOMNode* aNode) override;
/**
* DeleteTextWithTransaction() removes text in the range from aCharData if
* it's modifiable. Note that this not an override of same method of
* EditorBase.
*
* @param aCharData The data node which should be modified.
* @param aOffset Start offset of removing text in aCharData.
* @param aLength Length of removing text.
*/
nsresult DeleteTextWithTransaction(dom::CharacterData& aTextNode,
uint32_t aOffset, uint32_t aLength);
/**
* InsertTextWithTransaction() inserts aStringToInsert at aPointToInsert.
*/
virtual nsresult
InsertTextWithTransaction(nsIDocument& aDocument,
const nsAString& aStringToInsert,
const EditorRawDOMPoint& aPointToInsert,
EditorRawDOMPoint* aPointAfterInsertedString =
nullptr) override;
virtual bool IsModifiableNode(nsINode* aNode) override;
NS_IMETHOD SelectAll() override;
// nsICSSLoaderObserver
NS_IMETHOD StyleSheetLoaded(StyleSheet* aSheet,
bool aWasAlternate, nsresult aStatus) override;
/**
* OnInputLineBreak() is called when user inputs a line break with
* Shift + Enter or something.
*/
nsresult OnInputLineBreak();
/**
* InsertNodeIntoProperAncestorWithTransaction() attempts to insert aNode
* into the document, at aPointToInsert. Checks with strict dtd to see if
* containment is allowed. If not allowed, will attempt to find a parent
* in the parent hierarchy of aPointToInsert.GetContainer() that will accept
* aNode as a child. If such a parent is found, will split the document
* tree from aPointToInsert up to parent, and then insert aNode.
* aPointToInsert is then adjusted to point to the actual location that
* aNode was inserted at. aSplitAtEdges specifies if the splitting process
* is allowed to result in empty nodes.
*
* @param aNode Node to insert.
* @param aPointToInsert Insertion point.
* @param aSplitAtEdges Splitting can result in empty nodes?
* @return Returns inserted point if succeeded.
* Otherwise, the result is not set.
*/
template<typename PT, typename CT>
EditorDOMPoint
InsertNodeIntoProperAncestorWithTransaction(
nsIContent& aNode,
const EditorDOMPointBase<PT, CT>& aPointToInsert,
SplitAtEdges aSplitAtEdges);
/**
* CopyLastEditableChildStyles() clones inline container elements into
* aPreviousBlock to aNewBlock to keep using same style in it.
*
* @param aPreviousBlock The previous block element. All inline
* elements which are last sibling of each level
* are cloned to aNewBlock.
* @param aNewBlock New block container element.
* @param aNewBrElement If this method creates a new <br> element for
* placeholder, this is set to the new <br>
* element.
*/
nsresult
CopyLastEditableChildStylesWithTransaction(Element& aPreviousBlock,
Element& aNewBlock,
RefPtr<Element>* aNewBrElement);
/**
* Use this to assure that selection is set after attribute nodes when
* trying to collapse selection at begining of a block node
* e.g., when setting at beginning of a table cell
* This will stop at a table, however, since we don't want to
* "drill down" into nested tables.
* @param aSelection Optional. If null, we get current selection.
*/
void CollapseSelectionToDeepestNonTableFirstChild(Selection* aSelection,
nsINode* aNode);
/**
* IsInVisibleTextFrames() returns true if all text in aText is in visible
* text frames. Callers have to guarantee that there is no pending reflow.
*/
bool IsInVisibleTextFrames(dom::Text& aText);
/**
* IsVisibleTextNode() returns true if aText has visible text. If it has
* only whitespaces and they are collapsed, returns false.
*/
bool IsVisibleTextNode(Text& aText);
/**
* aNode must be a non-null text node.
* outIsEmptyNode must be non-null.
*/
nsresult IsEmptyNode(nsINode* aNode, bool* outIsEmptyBlock,
bool aMozBRDoesntCount = false,
bool aListOrCellNotEmpty = false,
bool aSafeToAskFrames = false);
nsresult IsEmptyNodeImpl(nsINode* aNode,
bool* outIsEmptyBlock,
bool aMozBRDoesntCount,
bool aListOrCellNotEmpty,
bool aSafeToAskFrames,
bool* aSeenBR);
/**
* Returns TRUE if sheet was loaded, false if it wasn't.
*/
bool EnableExistingStyleSheet(const nsAString& aURL);
/**
* Dealing with the internal style sheet lists.
*/
StyleSheet* GetStyleSheetForURL(const nsAString& aURL);
void GetURLForStyleSheet(StyleSheet* aStyleSheet,
nsAString& aURL);
/**
* Add a url + known style sheet to the internal lists.
*/
nsresult AddNewStyleSheetToList(const nsAString &aURL,
StyleSheet* aStyleSheet);
nsresult RemoveStyleSheetFromList(const nsAString &aURL);
bool IsCSSEnabled() const
{
// TODO: removal of mCSSAware and use only the presence of mCSSEditUtils
return mCSSAware && mCSSEditUtils && mCSSEditUtils->IsCSSPrefChecked();
}
static bool HasAttributes(Element* aElement)
{
MOZ_ASSERT(aElement);
uint32_t attrCount = aElement->GetAttrCount();
return attrCount > 1 ||
(1 == attrCount &&
!aElement->GetAttrNameAt(0)->Equals(nsGkAtoms::mozdirty));
}
ParagraphSeparator GetDefaultParagraphSeparator() const
{
return mDefaultParagraphSeparator;
}
void SetDefaultParagraphSeparator(ParagraphSeparator aSep)
{
mDefaultParagraphSeparator = aSep;
}
/**
* event callback when a mouse button is pressed
* @param aX [IN] horizontal position of the pointer
* @param aY [IN] vertical position of the pointer
* @param aTarget [IN] the element triggering the event
* @param aMouseEvent [IN] the event
*/
nsresult OnMouseDown(int32_t aX, int32_t aY, Element* aTarget,
dom::Event* aMouseEvent);
/**
* event callback when a mouse button is released
* @param aX [IN] horizontal position of the pointer
* @param aY [IN] vertical position of the pointer
* @param aTarget [IN] the element triggering the event
*/
nsresult OnMouseUp(int32_t aX, int32_t aY, Element* aTarget);
/**
* event callback when the mouse pointer is moved
* @param aMouseEvent [IN] the event
*/
nsresult OnMouseMove(dom::MouseEvent* aMouseEvent);
/**
* Modifies the table containing the selection according to the
* activation of an inline table editing UI element
* @param aUIAnonymousElement [IN] the inline table editing UI element
*/
nsresult DoInlineTableEditingAction(const Element& aUIAnonymousElement);
/**
* MaybeCollapseSelectionAtFirstEditableNode() may collapse selection at
* proper position to staring to edit. If there is a non-editable node
* before any editable text nodes or inline elements which can have text
* nodes as their children, collapse selection at start of the editing
* host. If there is an editable text node which is not collapsed, collapses
* selection at the start of the text node. If there is an editable inline
* element which cannot have text nodes as its child, collapses selection at
* before the element node. Otherwise, collapses selection at start of the
* editing host.
*
* @param aIgnoreIfSelectionInEditingHost
* This method does nothing if selection is in the
* editing host except if it's collapsed at start of
* the editing host.
* Note that if selection ranges were outside of
* current selection limiter, selection was collapsed
* at the start of the editing host therefore, if
* you call this with setting this to true, you can
* keep selection ranges if user has already been
* changed.
*/
nsresult
MaybeCollapseSelectionAtFirstEditableNode(
bool aIgnoreIfSelectionInEditingHost);
nsHTMLDocument* GetHTMLDocument() const;
protected:
class BlobReader final : public nsIEditorBlobListener
{
public:
BlobReader(dom::BlobImpl* aBlob, HTMLEditor* aHTMLEditor,
bool aIsSafe, nsIDocument* aSourceDoc,
nsINode* aDestinationNode, int32_t aDestOffset,
bool aDoDeleteSelection);
NS_DECL_ISUPPORTS
NS_DECL_NSIEDITORBLOBLISTENER
private:
~BlobReader()
{
}
RefPtr<dom::BlobImpl> mBlob;
RefPtr<HTMLEditor> mHTMLEditor;
bool mIsSafe;
nsCOMPtr<nsIDocument> mSourceDoc;
nsCOMPtr<nsINode> mDestinationNode;
int32_t mDestOffset;
bool mDoDeleteSelection;
};
NS_IMETHOD InitRules() override;
virtual void CreateEventListeners() override;
virtual nsresult InstallEventListeners() override;
virtual void RemoveEventListeners() override;
bool ShouldReplaceRootElement();
void NotifyRootChanged();
Element* GetBodyElement();
/**
* Get the focused node of this editor.
* @return If the editor has focus, this returns the focused node.
* Otherwise, returns null.
*/
already_AddRefed<nsINode> GetFocusedNode();
/**
* Return TRUE if aElement is a table-related elemet and caret was set.
*/
bool SetCaretInTableCell(dom::Element* aElement);
nsresult TabInTable(bool inIsShift, bool* outHandled);
/**
* InsertBrElementAtSelectionWithTransaction() inserts a new <br> element at
* selection. If there is non-collapsed selection ranges, the selected
* ranges is deleted first.
*/
nsresult InsertBrElementAtSelectionWithTransaction();
// Table Editing (implemented in nsTableEditor.cpp)
/**
* Insert a new cell after or before supplied aCell.
* Optional: If aNewCell supplied, returns the newly-created cell (addref'd,
* of course)
* This doesn't change or use the current selection.
*/
nsresult InsertCell(Element* aCell, int32_t aRowSpan,
int32_t aColSpan, bool aAfter, bool aIsHeader,
Element** aNewCell);
/**
* Helpers that don't touch the selection or do batch transactions.
*/
nsresult DeleteRow(Element* aTable, int32_t aRowIndex);
nsresult DeleteColumn(Element* aTable, int32_t aColIndex);
nsresult DeleteCellContents(Element* aCell);
/**
* Move all contents from aCellToMerge into aTargetCell (append at end).
*/
nsresult MergeCells(RefPtr<Element> aTargetCell,
RefPtr<Element> aCellToMerge,
bool aDeleteCellToMerge);
nsresult DeleteTable2(Element* aTable, Selection* aSelection);
nsresult SetColSpan(Element* aCell, int32_t aColSpan);
nsresult SetRowSpan(Element* aCell, int32_t aRowSpan);
/**
* Helper used to get nsTableWrapperFrame for a table.
*/
nsTableWrapperFrame* GetTableFrame(Element* aTable);
/**
* Needed to do appropriate deleting when last cell or row is about to be
* deleted. This doesn't count cells that don't start in the given row (are
* spanning from row above).
*/
int32_t GetNumberOfCellsInRow(Element* aTable, int32_t rowIndex);
/**
* Test if all cells in row or column at given index are selected.
*/
bool AllCellsInRowSelected(Element* aTable, int32_t aRowIndex,
int32_t aNumberOfColumns);
bool AllCellsInColumnSelected(Element* aTable, int32_t aColIndex,
int32_t aNumberOfRows);
bool IsEmptyCell(Element* aCell);
/**
* Most insert methods need to get the same basic context data.
* Any of the pointers may be null if you don't need that datum (for more
* efficiency).
* Input: *aCell is a known cell,
* if null, cell is obtained from the anchor node of the selection.
* Returns NS_EDITOR_ELEMENT_NOT_FOUND if cell is not found even if aCell is
* null.
*/
nsresult GetCellContext(Selection** aSelection, Element** aTable,
Element** aCell, nsINode** aCellParent,
int32_t* aCellOffset, int32_t* aRowIndex,
int32_t* aColIndex);
nsresult GetCellSpansAt(Element* aTable, int32_t aRowIndex,
int32_t aColIndex, int32_t& aActualRowSpan,
int32_t& aActualColSpan);
nsresult SplitCellIntoColumns(Element* aTable, int32_t aRowIndex,
int32_t aColIndex, int32_t aColSpanLeft,
int32_t aColSpanRight,
Element** aNewCell);
nsresult SplitCellIntoRows(Element* aTable, int32_t aRowIndex,
int32_t aColIndex, int32_t aRowSpanAbove,
int32_t aRowSpanBelow, Element** aNewCell);
nsresult CopyCellBackgroundColor(Element* aDestCell,
Element* aSourceCell);
/**
* Reduce rowspan/colspan when cells span into nonexistent rows/columns.
*/
nsresult FixBadRowSpan(Element* aTable, int32_t aRowIndex,
int32_t& aNewRowCount);
nsresult FixBadColSpan(Element* aTable, int32_t aColIndex,
int32_t& aNewColCount);
/**
* Fallback method: Call this after using ClearSelection() and you
* failed to set selection to some other content in the document.
*/
nsresult SetSelectionAtDocumentStart(Selection* aSelection);
// End of Table Editing utilities
static Element* GetEnclosingTable(nsINode* aNode);
static nsIDOMNode* GetEnclosingTable(nsIDOMNode* aNode);
/**
* Content-based query returns true if <aProperty aAttribute=aValue> effects
* aNode. If <aProperty aAttribute=aValue> contains aNode, but
* <aProperty aAttribute=SomeOtherValue> also contains aNode and the second is
* more deeply nested than the first, then the first does not effect aNode.
*
* @param aNode The target of the query
* @param aProperty The property that we are querying for
* @param aAttribute The attribute of aProperty, example: color in
* <FONT color="blue"> May be null.
* @param aValue The value of aAttribute, example: blue in
* <FONT color="blue"> May be null. Ignored if aAttribute
* is null.
* @param outValue [OUT] the value of the attribute, if aIsSet is true
* @return true if <aProperty aAttribute=aValue> effects
* aNode.
*
* The nsIContent variant returns aIsSet instead of using an out parameter.
*/
bool IsTextPropertySetByContent(nsINode* aNode,
nsAtom* aProperty,
nsAtom* aAttribute,
const nsAString* aValue,
nsAString* outValue = nullptr);
// Methods for handling plaintext quotations
nsresult PasteAsPlaintextQuotation(int32_t aSelectionType);
/**
* Insert a string as quoted text, replacing the selected text (if any).
* @param aQuotedText The string to insert.
* @param aAddCites Whether to prepend extra ">" to each line
* (usually true, unless those characters
* have already been added.)
* @return aNodeInserted The node spanning the insertion, if applicable.
* If aAddCites is false, this will be null.
*/
nsresult InsertAsPlaintextQuotation(const nsAString& aQuotedText,
bool aAddCites,
nsIDOMNode** aNodeInserted);
nsresult InsertObject(const nsACString& aType, nsISupports* aObject,
bool aIsSafe,
nsIDocument* aSourceDoc,
nsINode* aDestinationNode,
int32_t aDestOffset,
bool aDoDeleteSelection);
// factored methods for handling insertion of data from transferables
// (drag&drop or clipboard)
NS_IMETHOD PrepareTransferable(nsITransferable** transferable) override;
nsresult PrepareHTMLTransferable(nsITransferable** transferable);
nsresult InsertFromTransferable(nsITransferable* transferable,
nsIDocument* aSourceDoc,
const nsAString& aContextStr,
const nsAString& aInfoStr,
bool havePrivateHTMLFlavor,
bool aDoDeleteSelection);
virtual nsresult InsertFromDataTransfer(dom::DataTransfer* aDataTransfer,
int32_t aIndex,
nsIDocument* aSourceDoc,
nsINode* aDestinationNode,
int32_t aDestOffset,
bool aDoDeleteSelection) override;
bool HavePrivateHTMLFlavor(nsIClipboard* clipboard );
nsresult ParseCFHTML(nsCString& aCfhtml, char16_t** aStuffToPaste,
char16_t** aCfcontext);
bool IsInLink(nsINode* aNode, nsCOMPtr<nsINode>* outLink = nullptr);
nsresult StripFormattingNodes(nsIContent& aNode, bool aOnlyList = false);
nsresult CreateDOMFragmentFromPaste(const nsAString& aInputString,
const nsAString& aContextStr,
const nsAString& aInfoStr,
nsCOMPtr<nsINode>* outFragNode,
nsCOMPtr<nsINode>* outStartNode,
nsCOMPtr<nsINode>* outEndNode,
int32_t* outStartOffset,
int32_t* outEndOffset,
bool aTrustedInput);
nsresult ParseFragment(const nsAString& aStr, nsAtom* aContextLocalName,
nsIDocument* aTargetDoc,
dom::DocumentFragment** aFragment, bool aTrustedInput);
void CreateListOfNodesToPaste(dom::DocumentFragment& aFragment,
nsTArray<OwningNonNull<nsINode>>& outNodeList,
nsINode* aStartContainer,
int32_t aStartOffset,
nsINode* aEndContainer,
int32_t aEndOffset);
nsresult CreateTagStack(nsTArray<nsString>& aTagStack,
nsIDOMNode* aNode);
enum class StartOrEnd { start, end };
void GetListAndTableParents(StartOrEnd aStartOrEnd,
nsTArray<OwningNonNull<nsINode>>& aNodeList,
nsTArray<OwningNonNull<Element>>& outArray);
int32_t DiscoverPartialListsAndTables(
nsTArray<OwningNonNull<nsINode>>& aPasteNodes,
nsTArray<OwningNonNull<Element>>& aListsAndTables);
nsINode* ScanForListAndTableStructure(
StartOrEnd aStartOrEnd,
nsTArray<OwningNonNull<nsINode>>& aNodes,
Element& aListOrTable);
void ReplaceOrphanedStructure(
StartOrEnd aStartOrEnd,
nsTArray<OwningNonNull<nsINode>>& aNodeArray,
nsTArray<OwningNonNull<Element>>& aListAndTableArray,
int32_t aHighWaterMark);
/**
* Small utility routine to test if a break node is visible to user.
*/
bool IsVisibleBRElement(nsINode* aNode);
/**
* GetBetterInsertionPointFor() returns better insertion point to insert
* aNodeToInsert.
*
* @param aNodeToInsert The node to insert.
* @param aPointToInsert A candidate point to insert the node.
* @return Better insertion point if next visible node
* is a <br> element and previous visible node
* is neither none, another <br> element nor
* different block level element.
*/
EditorRawDOMPoint
GetBetterInsertionPointFor(nsINode& aNodeToInsert,
const EditorRawDOMPoint& aPointToInsert);
/**
* MakeDefinitionListItemWithTransaction() replaces parent list of current
* selection with <dl> or create new <dl> element and creates a definition
* list item whose name is aTagName.
*
* @param aTagName Must be nsGkAtoms::dt or nsGkAtoms::dd.
*/
nsresult MakeDefinitionListItemWithTransaction(nsAtom& aTagName);
/**
* InsertBasicBlockWithTransaction() inserts a block element whose name
* is aTagName at selection.
*
* @param aTagName A block level element name. Must NOT be
* nsGkAtoms::dt nor nsGkAtoms::dd.
*/
nsresult InsertBasicBlockWithTransaction(nsAtom& aTagName);
/**
* Increase/decrease the font size of selection.
*/
enum class FontSize { incr, decr };
nsresult RelativeFontChange(FontSize aDir);
/**
* Helper routines for font size changing.
*/
nsresult RelativeFontChangeOnTextNode(FontSize aDir,
Text& aTextNode,
int32_t aStartOffset,
int32_t aEndOffset);
nsresult RelativeFontChangeOnNode(int32_t aSizeChange, nsIContent* aNode);
nsresult RelativeFontChangeHelper(int32_t aSizeChange, nsINode* aNode);
/**
* Helper routines for inline style.
*/
nsresult SetInlinePropertyOnTextNode(Text& aData,
int32_t aStartOffset,
int32_t aEndOffset,
nsAtom& aProperty,
nsAtom* aAttribute,
const nsAString& aValue);
nsresult SetInlinePropertyOnNode(nsIContent& aNode,
nsAtom& aProperty,
nsAtom* aAttribute,
const nsAString& aValue);
nsresult PromoteInlineRange(nsRange& aRange);
nsresult PromoteRangeIfStartsOrEndsInNamedAnchor(nsRange& aRange);
nsresult SplitStyleAboveRange(nsRange* aRange,
nsAtom* aProperty,
nsAtom* aAttribute);
nsresult SplitStyleAbovePoint(nsCOMPtr<nsINode>* aNode, int32_t* aOffset,
nsAtom* aProperty,
nsAtom* aAttribute,
nsIContent** aOutLeftNode = nullptr,
nsIContent** aOutRightNode = nullptr);
nsresult RemoveStyleInside(nsIContent& aNode,
nsAtom* aProperty,
nsAtom* aAttribute,
const bool aChildrenOnly = false);
bool NodeIsProperty(nsINode& aNode);
bool IsAtFrontOfNode(nsINode& aNode, int32_t aOffset);
bool IsAtEndOfNode(nsINode& aNode, int32_t aOffset);
bool IsOnlyAttribute(const Element* aElement, nsAtom* aAttribute);
/**
* RemoveBlockContainerWithTransaction() removes aElement from the DOM tree
* but moves its all children to its parent node and if its parent needs <br>
* element to have at least one line-height, this inserts <br> element
* automatically.
*
* @param aElement Block element to be removed.
*/
nsresult RemoveBlockContainerWithTransaction(Element& aElement);
nsIContent* GetPriorHTMLSibling(nsINode* aNode);
nsIContent* GetNextHTMLSibling(nsINode* aNode);
/**
* GetPreviousHTMLElementOrText*() methods are similar to
* EditorBase::GetPreviousElementOrText*() but this won't return nodes
* outside active editing host.
*/
nsIContent* GetPreviousHTMLElementOrText(nsINode& aNode)
{
return GetPreviousHTMLElementOrTextInternal(aNode, false);
}
nsIContent* GetPreviousHTMLElementOrTextInBlock(nsINode& aNode)
{
return GetPreviousHTMLElementOrTextInternal(aNode, true);
}
template<typename PT, typename CT>
nsIContent*
GetPreviousHTMLElementOrText(const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetPreviousHTMLElementOrTextInternal(aPoint, false);
}
template<typename PT, typename CT>
nsIContent*
GetPreviousHTMLElementOrTextInBlock(const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetPreviousHTMLElementOrTextInternal(aPoint, true);
}
/**
* GetPreviousHTMLElementOrTextInternal() methods are common implementation
* of above methods. Please don't use this method directly.
*/
nsIContent* GetPreviousHTMLElementOrTextInternal(nsINode& aNode,
bool aNoBlockCrossing);
template<typename PT, typename CT>
nsIContent*
GetPreviousHTMLElementOrTextInternal(const EditorDOMPointBase<PT, CT>& aPoint,
bool aNoBlockCrossing);
/**
* GetPreviousEditableHTMLNode*() methods are similar to
* EditorBase::GetPreviousEditableNode() but this won't return nodes outside
* active editing host.
*/
nsIContent* GetPreviousEditableHTMLNode(nsINode& aNode)
{
return GetPreviousEditableHTMLNodeInternal(aNode, false);
}
nsIContent* GetPreviousEditableHTMLNodeInBlock(nsINode& aNode)
{
return GetPreviousEditableHTMLNodeInternal(aNode, true);
}
template<typename PT, typename CT>
nsIContent*
GetPreviousEditableHTMLNode(const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetPreviousEditableHTMLNodeInternal(aPoint, false);
}
template<typename PT, typename CT>
nsIContent* GetPreviousEditableHTMLNodeInBlock(
const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetPreviousEditableHTMLNodeInternal(aPoint, true);
}
/**
* GetPreviousEditableHTMLNodeInternal() methods are common implementation
* of above methods. Please don't use this method directly.
*/
nsIContent* GetPreviousEditableHTMLNodeInternal(nsINode& aNode,
bool aNoBlockCrossing);
template<typename PT, typename CT>
nsIContent* GetPreviousEditableHTMLNodeInternal(
const EditorDOMPointBase<PT, CT>& aPoint,
bool aNoBlockCrossing);
/**
* GetNextHTMLElementOrText*() methods are similar to
* EditorBase::GetNextElementOrText*() but this won't return nodes outside
* active editing host.
*
* Note that same as EditorBase::GetTextEditableNode(), methods which take
* |const EditorRawDOMPoint&| start to search from the node pointed by it.
* On the other hand, methods which take |nsINode&| start to search from
* next node of aNode.
*/
nsIContent* GetNextHTMLElementOrText(nsINode& aNode)
{
return GetNextHTMLElementOrTextInternal(aNode, false);
}
nsIContent* GetNextHTMLElementOrTextInBlock(nsINode& aNode)
{
return GetNextHTMLElementOrTextInternal(aNode, true);
}
template<typename PT, typename CT>
nsIContent*
GetNextHTMLElementOrText(const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetNextHTMLElementOrTextInternal(aPoint, false);
}
template<typename PT, typename CT>
nsIContent*
GetNextHTMLElementOrTextInBlock(const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetNextHTMLElementOrTextInternal(aPoint, true);
}
/**
* GetNextHTMLNodeInternal() methods are common implementation
* of above methods. Please don't use this method directly.
*/
nsIContent* GetNextHTMLElementOrTextInternal(nsINode& aNode,
bool aNoBlockCrossing);
template<typename PT, typename CT>
nsIContent*
GetNextHTMLElementOrTextInternal(const EditorDOMPointBase<PT, CT>& aPoint,
bool aNoBlockCrossing);
/**
* GetNextEditableHTMLNode*() methods are similar to
* EditorBase::GetNextEditableNode() but this won't return nodes outside
* active editing host.
*
* Note that same as EditorBase::GetTextEditableNode(), methods which take
* |const EditorRawDOMPoint&| start to search from the node pointed by it.
* On the other hand, methods which take |nsINode&| start to search from
* next node of aNode.
*/
nsIContent* GetNextEditableHTMLNode(nsINode& aNode)
{
return GetNextEditableHTMLNodeInternal(aNode, false);
}
nsIContent* GetNextEditableHTMLNodeInBlock(nsINode& aNode)
{
return GetNextEditableHTMLNodeInternal(aNode, true);
}
template<typename PT, typename CT>
nsIContent* GetNextEditableHTMLNode(const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetNextEditableHTMLNodeInternal(aPoint, false);
}
template<typename PT, typename CT>
nsIContent* GetNextEditableHTMLNodeInBlock(
const EditorDOMPointBase<PT, CT>& aPoint)
{
return GetNextEditableHTMLNodeInternal(aPoint, true);
}
/**
* GetNextEditableHTMLNodeInternal() methods are common implementation
* of above methods. Please don't use this method directly.
*/
nsIContent* GetNextEditableHTMLNodeInternal(nsINode& aNode,
bool aNoBlockCrossing);
template<typename PT, typename CT>
nsIContent* GetNextEditableHTMLNodeInternal(
const EditorDOMPointBase<PT, CT>& aPoint,
bool aNoBlockCrossing);
bool IsFirstEditableChild(nsINode* aNode);
bool IsLastEditableChild(nsINode* aNode);
nsIContent* GetFirstEditableChild(nsINode& aNode);
nsIContent* GetLastEditableChild(nsINode& aNode);
nsIContent* GetFirstEditableLeaf(nsINode& aNode);
nsIContent* GetLastEditableLeaf(nsINode& aNode);
nsresult GetInlinePropertyBase(nsAtom& aProperty,
nsAtom* aAttribute,
const nsAString* aValue,
bool* aFirst,
bool* aAny,
bool* aAll,
nsAString* outValue);
bool HasStyleOrIdOrClass(Element* aElement);
nsresult RemoveElementIfNoStyleOrIdOrClass(Element& aElement);
/**
* Whether the outer window of the DOM event target has focus or not.
*/
bool OurWindowHasFocus();
/**
* This function is used to insert a string of HTML input optionally with some
* context information into the editable field. The HTML input either comes
* from a transferable object created as part of a drop/paste operation, or
* from the InsertHTML method. We may want the HTML input to be sanitized
* (for example, if it's coming from a transferable object), in which case
* aTrustedInput should be set to false, otherwise, the caller should set it
* to true, which means that the HTML will be inserted in the DOM verbatim.
*
* aClearStyle should be set to false if you want the paste to be affected by
* local style (e.g., for the insertHTML command).
*/
nsresult DoInsertHTMLWithContext(const nsAString& aInputString,
const nsAString& aContextStr,
const nsAString& aInfoStr,
const nsAString& aFlavor,
nsIDocument* aSourceDoc,
nsINode* aDestNode,
int32_t aDestOffset,
bool aDeleteSelection,
bool aTrustedInput,
bool aClearStyle = true);
nsresult ClearStyle(nsCOMPtr<nsINode>* aNode, int32_t* aOffset,
nsAtom* aProperty, nsAtom* aAttribute);
/**
* sets the position of an element; warning it does NOT check if the
* element is already positioned or not and that's on purpose.
* @param aElement [IN] the element
* @param aX [IN] the x position in pixels.
* @param aY [IN] the y position in pixels.
*/
void SetTopAndLeft(Element& aElement, int32_t aX, int32_t aY);
/**
* Reset a selected cell or collapsed selection (the caret) after table
* editing.
*
* @param aTable A table in the document.
* @param aRow The row ...
* @param aCol ... and column defining the cell where we will try to
* place the caret.
* @param aSelected If true, we select the whole cell instead of setting
* caret.
* @param aDirection If cell at (aCol, aRow) is not found, search for
* previous cell in the same column (aPreviousColumn) or
* row (ePreviousRow) or don't search for another cell
* (aNoSearch). If no cell is found, caret is place just
* before table; and if that fails, at beginning of
* document. Thus we generally don't worry about the
* return value and can use the
* AutoSelectionSetterAfterTableEdit stack-based object to
* insure we reset the caret in a table-editing method.
*/
void SetSelectionAfterTableEdit(Element* aTable,
int32_t aRow, int32_t aCol,
int32_t aDirection, bool aSelected);
/**
* A more C++-friendly version of nsIHTMLEditor::GetSelectedElement
* that just returns null on errors.
*/
already_AddRefed<dom::Element> GetSelectedElement(const nsAString& aTagName);
/**
* RemoveStyleSheetWithTransaction() removes the given URL stylesheet
* from mStyleSheets and mStyleSheetURLs.
*/
nsresult RemoveStyleSheetWithTransaction(const nsAString& aURL);
protected:
RefPtr<TypeInState> mTypeInState;
RefPtr<ComposerCommandsUpdater> mComposerCommandsUpdater;
bool mCRInParagraphCreatesParagraph;
bool mCSSAware;
UniquePtr<CSSEditUtils> mCSSEditUtils;
// Used by GetFirstSelectedCell and GetNextSelectedCell
int32_t mSelectedCellIndex;
nsString mLastStyleSheetURL;
nsString mLastOverrideStyleSheetURL;
// Maintain a list of associated style sheets and their urls.
nsTArray<nsString> mStyleSheetURLs;
nsTArray<RefPtr<StyleSheet>> mStyleSheets;
protected:
// ANONYMOUS UTILS
void RemoveListenerAndDeleteRef(const nsAString& aEvent,
nsIDOMEventListener* aListener,
bool aUseCapture,
ManualNACPtr aElement,
nsIPresShell* aShell);
void DeleteRefToAnonymousNode(ManualNACPtr aContent,
nsIPresShell* aShell);
nsresult ShowResizersInner(Element& aResizedElement);
/**
* Returns the offset of an element's frame to its absolute containing block.
*/
nsresult GetElementOrigin(Element& aElement,
int32_t& aX, int32_t& aY);
nsresult GetPositionAndDimensions(Element& aElement,
int32_t& aX, int32_t& aY,
int32_t& aW, int32_t& aH,
int32_t& aBorderLeft,
int32_t& aBorderTop,
int32_t& aMarginLeft,
int32_t& aMarginTop);
bool IsInObservedSubtree(nsIContent* aChild);
void UpdateRootElement();
// resizing
// If the instance has shown resizers at least once, mHasShownResizers is
// set to true.
bool mHasShownResizers;
bool mIsObjectResizingEnabled;
bool mIsResizing;
bool mPreserveRatio;
bool mResizedObjectIsAnImage;
// absolute positioning
bool mIsAbsolutelyPositioningEnabled;
bool mResizedObjectIsAbsolutelyPositioned;
// If the instance has shown grabber at least once, mHasShownGrabber is
// set to true.
bool mHasShownGrabber;
bool mGrabberClicked;
bool mIsMoving;
bool mSnapToGridEnabled;
// inline table editing
// If the instance has shown inline table editor at least once,
// mHasShownInlineTableEditor is set to true.
bool mHasShownInlineTableEditor;
bool mIsInlineTableEditingEnabled;
// resizing
ManualNACPtr mTopLeftHandle;
ManualNACPtr mTopHandle;
ManualNACPtr mTopRightHandle;
ManualNACPtr mLeftHandle;
ManualNACPtr mRightHandle;
ManualNACPtr mBottomLeftHandle;
ManualNACPtr mBottomHandle;
ManualNACPtr mBottomRightHandle;
nsCOMPtr<Element> mActivatedHandle;
ManualNACPtr mResizingShadow;
ManualNACPtr mResizingInfo;
RefPtr<Element> mResizedObject;
nsCOMPtr<nsIDOMEventListener> mMouseMotionListenerP;
nsCOMPtr<nsIDOMEventListener> mResizeEventListenerP;
int32_t mOriginalX;
int32_t mOriginalY;
int32_t mResizedObjectX;
int32_t mResizedObjectY;
int32_t mResizedObjectWidth;
int32_t mResizedObjectHeight;
int32_t mResizedObjectMarginLeft;
int32_t mResizedObjectMarginTop;
int32_t mResizedObjectBorderLeft;
int32_t mResizedObjectBorderTop;
int32_t mXIncrementFactor;
int32_t mYIncrementFactor;
int32_t mWidthIncrementFactor;
int32_t mHeightIncrementFactor;
// When resizers, grabber and/or inline table editor are operated by user
// actually, the following counters are increased.
uint32_t mResizerUsedCount;
uint32_t mGrabberUsedCount;
uint32_t mInlineTableEditorUsedCount;
int8_t mInfoXIncrement;
int8_t mInfoYIncrement;
nsresult SetAllResizersPosition();
/**
* Shows active resizers around an element's frame
* @param aResizedElement [IN] a DOM Element
*/
nsresult ShowResizers(Element& aResizedElement);
ManualNACPtr CreateResizer(int16_t aLocation, nsIContent& aParentContent);
void SetAnonymousElementPosition(int32_t aX, int32_t aY,
Element* aResizer);
ManualNACPtr CreateShadow(nsIContent& aParentContent,
Element& aOriginalObject);
nsresult SetShadowPosition(Element* aShadow, Element* aOriginalObject,
int32_t aOriginalObjectX,
int32_t aOriginalObjectY);
ManualNACPtr CreateResizingInfo(nsIContent& aParentContent);
nsresult SetResizingInfoPosition(int32_t aX, int32_t aY,
int32_t aW, int32_t aH);
int32_t GetNewResizingIncrement(int32_t aX, int32_t aY, int32_t aID);
nsresult StartResizing(Element* aHandle);
int32_t GetNewResizingX(int32_t aX, int32_t aY);
int32_t GetNewResizingY(int32_t aX, int32_t aY);
int32_t GetNewResizingWidth(int32_t aX, int32_t aY);
int32_t GetNewResizingHeight(int32_t aX, int32_t aY);
void HideShadowAndInfo();
void SetFinalSize(int32_t aX, int32_t aY);
void SetResizeIncrements(int32_t aX, int32_t aY, int32_t aW, int32_t aH,
bool aPreserveRatio);
void HideAnonymousEditingUIs();
// absolute positioning
int32_t mPositionedObjectX;
int32_t mPositionedObjectY;
int32_t mPositionedObjectWidth;
int32_t mPositionedObjectHeight;
int32_t mPositionedObjectMarginLeft;
int32_t mPositionedObjectMarginTop;
int32_t mPositionedObjectBorderLeft;
int32_t mPositionedObjectBorderTop;
nsCOMPtr<Element> mAbsolutelyPositionedObject;
ManualNACPtr mGrabber;
ManualNACPtr mPositioningShadow;
int32_t mGridSize;
nsresult SetPositionToAbsolute(Element& aElement);
nsresult SetPositionToStatic(Element& aElement);
/**
* sets the z-index of an element.
* @param aElement [IN] the element
* @param aZorder [IN] the z-index
*/
void SetZIndex(Element& aElement, int32_t aZorder);
/**
* shows a grabber attached to an arbitrary element. The grabber is an image
* positioned on the left hand side of the top border of the element. Draggin
* and dropping it allows to change the element's absolute position in the
* document. See chrome://editor/content/images/grabber.gif
* @param aElement [IN] the element
*/
nsresult ShowGrabber(Element& aElement);
/**
* hide the grabber if it shown.
*/
void HideGrabber();
ManualNACPtr CreateGrabber(nsIContent& aParentContent);
nsresult StartMoving();
nsresult SetFinalPosition(int32_t aX, int32_t aY);
void AddPositioningOffset(int32_t& aX, int32_t& aY);
void SnapToGrid(int32_t& newX, int32_t& newY);
nsresult GrabberClicked();
nsresult EndMoving();
nsresult GetTemporaryStyleForFocusedPositionedElement(Element& aElement,
nsAString& aReturn);
// inline table editing
RefPtr<Element> mInlineEditedCell;
ManualNACPtr mAddColumnBeforeButton;
ManualNACPtr mRemoveColumnButton;
ManualNACPtr mAddColumnAfterButton;
ManualNACPtr mAddRowBeforeButton;
ManualNACPtr mRemoveRowButton;
ManualNACPtr mAddRowAfterButton;
/**
* Shows inline table editing UI around a table cell
* @param aCell [IN] a DOM Element being a table cell, td or th
*/
nsresult ShowInlineTableEditingUI(Element* aCell);
/**
* Hide all inline table editing UI
*/
nsresult HideInlineTableEditingUI();
void AddMouseClickListener(Element* aElement);
void RemoveMouseClickListener(Element* aElement);
nsCOMPtr<nsILinkHandler> mLinkHandler;
ParagraphSeparator mDefaultParagraphSeparator;
public:
friend class AutoSelectionSetterAfterTableEdit;
friend class HTMLEditorEventListener;
friend class HTMLEditRules;
friend class TextEditRules;
friend class WSRunObject;
private:
bool IsSimpleModifiableNode(nsIContent* aContent,
nsAtom* aProperty,
nsAtom* aAttribute,
const nsAString* aValue);
nsresult SetInlinePropertyOnNodeImpl(nsIContent& aNode,
nsAtom& aProperty,
nsAtom* aAttribute,
const nsAString& aValue);
typedef enum { eInserted, eAppended } InsertedOrAppended;
void DoContentInserted(nsIContent* aChild, InsertedOrAppended);
already_AddRefed<Element> GetElementOrParentByTagName(
const nsAString& aTagName, nsINode* aNode);
already_AddRefed<Element> CreateElementWithDefaults(
const nsAString& aTagName);
/**
* Returns an anonymous Element of type aTag,
* child of aParentContent. If aIsCreatedHidden is true, the class
* "hidden" is added to the created element. If aAnonClass is not
* the empty string, it becomes the value of the attribute "_moz_anonclass"
* @return a Element
* @param aTag [IN] desired type of the element to create
* @param aParentContent [IN] the parent node of the created anonymous
* element
* @param aAnonClass [IN] contents of the _moz_anonclass attribute
* @param aIsCreatedHidden [IN] a boolean specifying if the class "hidden"
* is to be added to the created anonymous
* element
*/
ManualNACPtr CreateAnonymousElement(nsAtom* aTag,
nsIContent& aParentContent,
const nsAString& aAnonClass,
bool aIsCreatedHidden);
};
} // namespace mozilla
mozilla::HTMLEditor*
nsIEditor::AsHTMLEditor()
{
return static_cast<mozilla::EditorBase*>(this)->mIsHTMLEditorClass ?
static_cast<mozilla::HTMLEditor*>(this) : nullptr;
}
const mozilla::HTMLEditor*
nsIEditor::AsHTMLEditor() const
{
return static_cast<const mozilla::EditorBase*>(this)->mIsHTMLEditorClass ?
static_cast<const mozilla::HTMLEditor*>(this) : nullptr;
}
#endif // #ifndef mozilla_HTMLEditor_h
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