gecko/editor/libeditor/nsHTMLEditRules.h

351 lines
17 KiB
C++

/* -*- 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 nsHTMLEditRules_h__
#define nsHTMLEditRules_h__
#include "TypeInState.h"
#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "nsEditor.h"
#include "nsIEditActionListener.h"
#include "nsIEditor.h"
#include "nsIHTMLEditor.h"
#include "nsISupportsImpl.h"
#include "nsSelectionState.h"
#include "nsTArray.h"
#include "nsTextEditRules.h"
#include "nscore.h"
class nsHTMLEditor;
class nsIAtom;
class nsIDOMCharacterData;
class nsIDOMDocument;
class nsIDOMElement;
class nsIDOMNode;
class nsIDOMRange;
class nsIEditor;
class nsINode;
class nsISelection;
class nsPlaintextEditor;
class nsRange;
class nsRulesInfo;
namespace mozilla {
namespace dom {
class Element;
class Selection;
} // namespace dom
} // namespace mozilla
struct DOMPoint;
template <class E> class nsCOMArray;
struct StyleCache : public PropItem
{
bool mPresent;
StyleCache() : PropItem(), mPresent(false) {
MOZ_COUNT_CTOR(StyleCache);
}
StyleCache(nsIAtom *aTag, const nsAString &aAttr, const nsAString &aValue) :
PropItem(aTag, aAttr, aValue), mPresent(false) {
MOZ_COUNT_CTOR(StyleCache);
}
~StyleCache() {
MOZ_COUNT_DTOR(StyleCache);
}
};
#define SIZE_STYLE_TABLE 19
class nsHTMLEditRules : public nsTextEditRules, public nsIEditActionListener
{
public:
NS_DECL_ISUPPORTS_INHERITED
nsHTMLEditRules();
// nsIEditRules methods
NS_IMETHOD Init(nsPlaintextEditor *aEditor);
NS_IMETHOD DetachEditor();
NS_IMETHOD BeforeEdit(EditAction action,
nsIEditor::EDirection aDirection);
NS_IMETHOD AfterEdit(EditAction action,
nsIEditor::EDirection aDirection);
NS_IMETHOD WillDoAction(mozilla::dom::Selection* aSelection, nsRulesInfo* aInfo,
bool* aCancel, bool* aHandled);
NS_IMETHOD DidDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
NS_IMETHOD DocumentModified();
nsresult GetListState(bool *aMixed, bool *aOL, bool *aUL, bool *aDL);
nsresult GetListItemState(bool *aMixed, bool *aLI, bool *aDT, bool *aDD);
nsresult GetIndentState(bool *aCanIndent, bool *aCanOutdent);
nsresult GetAlignment(bool *aMixed, nsIHTMLEditor::EAlignment *aAlign);
nsresult GetParagraphState(bool *aMixed, nsAString &outFormat);
nsresult MakeSureElemStartsOrEndsOnCR(nsIDOMNode *aNode);
// nsIEditActionListener methods
NS_IMETHOD WillCreateNode(const nsAString& aTag, nsIDOMNode *aParent, int32_t aPosition);
NS_IMETHOD DidCreateNode(const nsAString& aTag, nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition, nsresult aResult);
NS_IMETHOD WillInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition);
NS_IMETHOD DidInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition, nsresult aResult);
NS_IMETHOD WillDeleteNode(nsIDOMNode *aChild);
NS_IMETHOD DidDeleteNode(nsIDOMNode *aChild, nsresult aResult);
NS_IMETHOD WillSplitNode(nsIDOMNode *aExistingRightNode, int32_t aOffset);
NS_IMETHOD DidSplitNode(nsIDOMNode *aExistingRightNode, int32_t aOffset, nsIDOMNode *aNewLeftNode, nsresult aResult);
NS_IMETHOD WillJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent);
NS_IMETHOD DidJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent, nsresult aResult);
NS_IMETHOD WillInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString);
NS_IMETHOD DidInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString, nsresult aResult);
NS_IMETHOD WillDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength);
NS_IMETHOD DidDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength, nsresult aResult);
NS_IMETHOD WillDeleteSelection(nsISelection *aSelection);
NS_IMETHOD DidDeleteSelection(nsISelection *aSelection);
protected:
virtual ~nsHTMLEditRules();
enum RulesEndpoint
{
kStart,
kEnd
};
enum BRLocation
{
kBeforeBlock,
kBlockEnd
};
void InitFields();
// nsHTMLEditRules implementation methods
nsresult WillInsert(nsISelection *aSelection, bool *aCancel);
nsresult WillInsertText( EditAction aAction,
mozilla::dom::Selection* aSelection,
bool *aCancel,
bool *aHandled,
const nsAString *inString,
nsAString *outString,
int32_t aMaxLength);
nsresult WillLoadHTML(nsISelection *aSelection, bool *aCancel);
nsresult WillInsertBreak(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult StandardBreakImpl(nsIDOMNode *aNode, int32_t aOffset, nsISelection *aSelection);
nsresult DidInsertBreak(nsISelection *aSelection, nsresult aResult);
nsresult SplitMailCites(nsISelection *aSelection, bool aPlaintext, bool *aHandled);
nsresult WillDeleteSelection(mozilla::dom::Selection* aSelection,
nsIEditor::EDirection aAction,
nsIEditor::EStripWrappers aStripWrappers,
bool* aCancel, bool* aHandled);
nsresult DidDeleteSelection(nsISelection *aSelection,
nsIEditor::EDirection aDir,
nsresult aResult);
nsresult InsertBRIfNeeded(nsISelection *aSelection);
nsresult GetGoodSelPointForNode(nsIDOMNode *aNode, nsIEditor::EDirection aAction,
nsCOMPtr<nsIDOMNode> *outSelNode, int32_t *outSelOffset);
nsresult JoinBlocks(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, bool *aCanceled);
nsresult MoveBlock(nsIDOMNode *aLeft, nsIDOMNode *aRight, int32_t aLeftOffset, int32_t aRightOffset);
nsresult MoveNodeSmart(nsIDOMNode *aSource, nsIDOMNode *aDest, int32_t *aOffset);
nsresult MoveContents(nsIDOMNode *aSource, nsIDOMNode *aDest, int32_t *aOffset);
nsresult DeleteNonTableElements(nsINode* aNode);
nsresult WillMakeList(mozilla::dom::Selection* aSelection,
const nsAString* aListType,
bool aEntireList,
const nsAString* aBulletType,
bool* aCancel, bool* aHandled,
const nsAString* aItemType = nullptr);
nsresult WillRemoveList(mozilla::dom::Selection* aSelection,
bool aOrdered, bool* aCancel, bool* aHandled);
nsresult WillIndent(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult WillCSSIndent(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult WillHTMLIndent(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult WillOutdent(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult WillAlign(mozilla::dom::Selection* aSelection,
const nsAString* alignType,
bool* aCancel, bool* aHandled);
nsresult WillAbsolutePosition(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult WillRemoveAbsolutePosition(mozilla::dom::Selection* aSelection,
bool* aCancel, bool* aHandled);
nsresult WillRelativeChangeZIndex(mozilla::dom::Selection* aSelection,
int32_t aChange,
bool* aCancel, bool* aHandled);
nsresult WillMakeDefListItem(mozilla::dom::Selection* aSelection,
const nsAString* aBlockType, bool aEntireList,
bool* aCancel, bool* aHandled);
nsresult WillMakeBasicBlock(mozilla::dom::Selection* aSelection,
const nsAString* aBlockType,
bool* aCancel, bool* aHandled);
nsresult DidMakeBasicBlock(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
nsresult DidAbsolutePosition();
nsresult AlignInnerBlocks(nsIDOMNode *aNode, const nsAString *alignType);
nsresult AlignBlockContents(nsIDOMNode *aNode, const nsAString *alignType);
nsresult AppendInnerFormatNodes(nsCOMArray<nsIDOMNode>& aArray,
nsINode* aNode);
nsresult AppendInnerFormatNodes(nsCOMArray<nsIDOMNode>& aArray,
nsIDOMNode *aNode);
nsresult GetFormatString(nsIDOMNode *aNode, nsAString &outFormat);
nsresult GetInnerContent(nsIDOMNode *aNode, nsCOMArray<nsIDOMNode>& outArrayOfNodes, int32_t *aIndex, bool aList = true, bool aTble = true);
already_AddRefed<nsIDOMNode> IsInListItem(nsIDOMNode* aNode);
mozilla::dom::Element* IsInListItem(nsINode* aNode);
nsresult ReturnInHeader(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, int32_t aOffset);
nsresult ReturnInParagraph(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, int32_t aOffset, bool *aCancel, bool *aHandled);
nsresult SplitParagraph(nsIDOMNode *aPara,
nsIDOMNode *aBRNode,
nsISelection *aSelection,
nsCOMPtr<nsIDOMNode> *aSelNode,
int32_t *aOffset);
nsresult ReturnInListItem(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, int32_t aOffset);
nsresult AfterEditInner(EditAction action,
nsIEditor::EDirection aDirection);
nsresult RemovePartOfBlock(nsIDOMNode *aBlock,
nsIDOMNode *aStartChild,
nsIDOMNode *aEndChild,
nsCOMPtr<nsIDOMNode> *aLeftNode = 0,
nsCOMPtr<nsIDOMNode> *aRightNode = 0);
nsresult SplitBlock(nsIDOMNode *aBlock,
nsIDOMNode *aStartChild,
nsIDOMNode *aEndChild,
nsCOMPtr<nsIDOMNode> *aLeftNode = 0,
nsCOMPtr<nsIDOMNode> *aRightNode = 0,
nsCOMPtr<nsIDOMNode> *aMiddleNode = 0);
nsresult OutdentPartOfBlock(nsIDOMNode *aBlock,
nsIDOMNode *aStartChild,
nsIDOMNode *aEndChild,
bool aIsBlockIndentedWithCSS,
nsCOMPtr<nsIDOMNode> *aLeftNode = 0,
nsCOMPtr<nsIDOMNode> *aRightNode = 0);
nsresult ConvertListType(nsIDOMNode* aList,
nsCOMPtr<nsIDOMNode>* outList,
nsIAtom* aListType,
nsIAtom* aItemType);
nsresult ConvertListType(mozilla::dom::Element* aList,
mozilla::dom::Element** aOutList,
nsIAtom* aListType,
nsIAtom* aItemType);
nsresult CreateStyleForInsertText(nsISelection *aSelection, nsIDOMDocument *aDoc);
nsresult IsEmptyBlock(nsIDOMNode *aNode,
bool *outIsEmptyBlock,
bool aMozBRDoesntCount = false,
bool aListItemsNotEmpty = false);
nsresult CheckForEmptyBlock(nsIDOMNode *aStartNode,
nsIDOMNode *aBodyNode,
nsISelection *aSelection,
bool *aHandled);
nsresult CheckForInvisibleBR(nsIDOMNode *aBlock, nsHTMLEditRules::BRLocation aWhere,
nsCOMPtr<nsIDOMNode> *outBRNode, int32_t aOffset=0);
nsresult ExpandSelectionForDeletion(nsISelection *aSelection);
bool IsFirstNode(nsIDOMNode *aNode);
bool IsLastNode(nsIDOMNode *aNode);
nsresult NormalizeSelection(nsISelection *inSelection);
void GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode* aNode,
int32_t aOffset, EditAction actionID,
nsCOMPtr<nsIDOMNode>* outNode, int32_t* outOffset);
nsresult GetPromotedRanges(nsISelection *inSelection,
nsCOMArray<nsIDOMRange> &outArrayOfRanges,
EditAction inOperationType);
nsresult PromoteRange(nsIDOMRange *inRange,
EditAction inOperationType);
nsresult GetNodesForOperation(nsCOMArray<nsIDOMRange>& inArrayOfRanges,
nsCOMArray<nsIDOMNode>& outArrayOfNodes,
EditAction inOperationType,
bool aDontTouchContent=false);
nsresult GetChildNodesForOperation(nsIDOMNode *inNode,
nsCOMArray<nsIDOMNode>& outArrayOfNodes);
nsresult GetNodesFromPoint(::DOMPoint point,
EditAction operation,
nsCOMArray<nsIDOMNode>& arrayOfNodes,
bool dontTouchContent);
nsresult GetNodesFromSelection(nsISelection *selection,
EditAction operation,
nsCOMArray<nsIDOMNode>& arrayOfNodes,
bool aDontTouchContent=false);
nsresult GetListActionNodes(nsCOMArray<nsIDOMNode> &outArrayOfNodes, bool aEntireList, bool aDontTouchContent=false);
void GetDefinitionListItemTypes(mozilla::dom::Element* aElement, bool* aDT, bool* aDD);
nsresult GetParagraphFormatNodes(nsCOMArray<nsIDOMNode>& outArrayOfNodes, bool aDontTouchContent=false);
nsresult LookInsideDivBQandList(nsCOMArray<nsIDOMNode>& aNodeArray);
nsresult BustUpInlinesAtRangeEndpoints(nsRangeStore &inRange);
nsresult BustUpInlinesAtBRs(nsIDOMNode *inNode,
nsCOMArray<nsIDOMNode>& outArrayOfNodes);
nsCOMPtr<nsIDOMNode> GetHighestInlineParent(nsIDOMNode* aNode);
nsresult MakeTransitionList(nsCOMArray<nsIDOMNode>& inArrayOfNodes,
nsTArray<bool> &inTransitionArray);
nsresult RemoveBlockStyle(nsCOMArray<nsIDOMNode>& arrayOfNodes);
nsresult ApplyBlockStyle(nsCOMArray<nsIDOMNode>& arrayOfNodes, const nsAString *aBlockTag);
nsresult MakeBlockquote(nsCOMArray<nsIDOMNode>& arrayOfNodes);
nsresult SplitAsNeeded(nsIAtom& aTag, nsCOMPtr<nsINode>& inOutParent,
int32_t& inOutOffset);
nsresult AddTerminatingBR(nsIDOMNode *aBlock);
nsresult JoinNodesSmart( nsIDOMNode *aNodeLeft,
nsIDOMNode *aNodeRight,
nsCOMPtr<nsIDOMNode> *aOutMergeParent,
int32_t *aOutMergeOffset);
nsresult GetTopEnclosingMailCite(nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutCiteNode, bool aPlaintext);
nsresult PopListItem(nsIDOMNode *aListItem, bool *aOutOfList);
nsresult RemoveListStructure(nsIDOMNode *aList);
nsresult CacheInlineStyles(nsIDOMNode *aNode);
nsresult ReapplyCachedStyles();
void ClearCachedStyles();
nsresult AdjustSpecialBreaks(bool aSafeToAskFrames = false);
nsresult AdjustWhitespace(nsISelection *aSelection);
nsresult PinSelectionToNewBlock(nsISelection *aSelection);
nsresult CheckInterlinePosition(nsISelection *aSelection);
nsresult AdjustSelection(nsISelection *aSelection, nsIEditor::EDirection aAction);
nsresult FindNearSelectableNode(nsIDOMNode *aSelNode,
int32_t aSelOffset,
nsIEditor::EDirection &aDirection,
nsCOMPtr<nsIDOMNode> *outSelectableNode);
/**
* Returns true if aNode1 or aNode2 or both is the descendant of some type of
* table element, but their nearest table element ancestors differ. "Table
* element" here includes not just <table> but also <td>, <tbody>, <tr>, etc.
* The nodes count as being their own descendants for this purpose, so a
* table element is its own nearest table element ancestor.
*/
bool InDifferentTableElements(nsIDOMNode* aNode1, nsIDOMNode* aNode2);
bool InDifferentTableElements(nsINode* aNode1, nsINode* aNode2);
nsresult RemoveEmptyNodes();
nsresult SelectionEndpointInNode(nsINode *aNode, bool *aResult);
nsresult UpdateDocChangeRange(nsIDOMRange *aRange);
nsresult ConfirmSelectionInBody();
nsresult InsertMozBRIfNeeded(nsIDOMNode *aNode);
bool IsEmptyInline(nsIDOMNode *aNode);
bool ListIsEmptyLine(nsCOMArray<nsIDOMNode> &arrayOfNodes);
nsresult RemoveAlignment(nsIDOMNode * aNode, const nsAString & aAlignType, bool aChildrenOnly);
nsresult MakeSureElemStartsOrEndsOnCR(nsIDOMNode *aNode, bool aStarts);
nsresult AlignBlock(nsIDOMElement * aElement, const nsAString * aAlignType, bool aContentsOnly);
nsresult RelativeChangeIndentationOfElementNode(nsIDOMNode *aNode, int8_t aRelativeChange);
void DocumentModifiedWorker();
// data members
protected:
nsHTMLEditor *mHTMLEditor;
nsRefPtr<nsRange> mDocChangeRange;
bool mListenerEnabled;
bool mReturnInEmptyLIKillsList;
bool mDidDeleteSelection;
bool mDidRangedDelete;
bool mRestoreContentEditableCount;
nsRefPtr<nsRange> mUtilRange;
uint32_t mJoinOffset; // need to remember an int across willJoin/didJoin...
nsCOMPtr<nsIDOMNode> mNewBlock;
nsRefPtr<nsRangeStore> mRangeItem;
StyleCache mCachedStyles[SIZE_STYLE_TABLE];
};
#endif //nsHTMLEditRules_h__