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350 lines
17 KiB
C++
350 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsHTMLEditRules_h__
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#define nsHTMLEditRules_h__
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#include "TypeInState.h"
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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsEditor.h"
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#include "nsIEditActionListener.h"
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#include "nsIEditor.h"
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#include "nsIHTMLEditor.h"
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#include "nsISupportsImpl.h"
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#include "nsSelectionState.h"
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#include "nsTArray.h"
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#include "nsTextEditRules.h"
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#include "nsTraceRefcnt.h"
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#include "nscore.h"
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class nsHTMLEditor;
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class nsIAtom;
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class nsIDOMCharacterData;
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class nsIDOMDocument;
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class nsIDOMElement;
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class nsIDOMNode;
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class nsIDOMRange;
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class nsIEditor;
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class nsINode;
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class nsISelection;
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class nsPlaintextEditor;
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class nsRange;
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class nsRulesInfo;
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namespace mozilla {
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class Selection;
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namespace dom {
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class Element;
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} // namespace dom
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} // namespace mozilla
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struct DOMPoint;
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template <class E> class nsCOMArray;
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struct StyleCache : public PropItem
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{
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bool mPresent;
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StyleCache() : PropItem(), mPresent(false) {
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MOZ_COUNT_CTOR(StyleCache);
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}
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StyleCache(nsIAtom *aTag, const nsAString &aAttr, const nsAString &aValue) :
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PropItem(aTag, aAttr, aValue), mPresent(false) {
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MOZ_COUNT_CTOR(StyleCache);
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}
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~StyleCache() {
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MOZ_COUNT_DTOR(StyleCache);
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}
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};
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#define SIZE_STYLE_TABLE 19
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class nsHTMLEditRules : public nsTextEditRules, public nsIEditActionListener
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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nsHTMLEditRules();
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virtual ~nsHTMLEditRules();
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// nsIEditRules methods
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NS_IMETHOD Init(nsPlaintextEditor *aEditor);
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NS_IMETHOD DetachEditor();
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NS_IMETHOD BeforeEdit(EditAction action,
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nsIEditor::EDirection aDirection);
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NS_IMETHOD AfterEdit(EditAction action,
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nsIEditor::EDirection aDirection);
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NS_IMETHOD WillDoAction(mozilla::Selection* aSelection, nsRulesInfo* aInfo,
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bool* aCancel, bool* aHandled);
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NS_IMETHOD DidDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
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NS_IMETHOD DocumentModified();
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nsresult GetListState(bool *aMixed, bool *aOL, bool *aUL, bool *aDL);
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nsresult GetListItemState(bool *aMixed, bool *aLI, bool *aDT, bool *aDD);
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nsresult GetIndentState(bool *aCanIndent, bool *aCanOutdent);
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nsresult GetAlignment(bool *aMixed, nsIHTMLEditor::EAlignment *aAlign);
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nsresult GetParagraphState(bool *aMixed, nsAString &outFormat);
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nsresult MakeSureElemStartsOrEndsOnCR(nsIDOMNode *aNode);
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// nsIEditActionListener methods
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NS_IMETHOD WillCreateNode(const nsAString& aTag, nsIDOMNode *aParent, int32_t aPosition);
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NS_IMETHOD DidCreateNode(const nsAString& aTag, nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition, nsresult aResult);
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NS_IMETHOD WillInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition);
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NS_IMETHOD DidInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition, nsresult aResult);
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NS_IMETHOD WillDeleteNode(nsIDOMNode *aChild);
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NS_IMETHOD DidDeleteNode(nsIDOMNode *aChild, nsresult aResult);
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NS_IMETHOD WillSplitNode(nsIDOMNode *aExistingRightNode, int32_t aOffset);
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NS_IMETHOD DidSplitNode(nsIDOMNode *aExistingRightNode, int32_t aOffset, nsIDOMNode *aNewLeftNode, nsresult aResult);
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NS_IMETHOD WillJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent);
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NS_IMETHOD DidJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent, nsresult aResult);
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NS_IMETHOD WillInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString);
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NS_IMETHOD DidInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString, nsresult aResult);
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NS_IMETHOD WillDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength);
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NS_IMETHOD DidDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength, nsresult aResult);
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NS_IMETHOD WillDeleteSelection(nsISelection *aSelection);
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NS_IMETHOD DidDeleteSelection(nsISelection *aSelection);
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protected:
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enum RulesEndpoint
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{
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kStart,
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kEnd
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};
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enum BRLocation
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{
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kBeforeBlock,
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kBlockEnd
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};
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// nsHTMLEditRules implementation methods
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nsresult WillInsert(nsISelection *aSelection, bool *aCancel);
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nsresult WillInsertText( EditAction aAction,
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mozilla::Selection* aSelection,
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bool *aCancel,
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bool *aHandled,
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const nsAString *inString,
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nsAString *outString,
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int32_t aMaxLength);
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nsresult WillLoadHTML(nsISelection *aSelection, bool *aCancel);
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nsresult WillInsertBreak(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult StandardBreakImpl(nsIDOMNode *aNode, int32_t aOffset, nsISelection *aSelection);
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nsresult DidInsertBreak(nsISelection *aSelection, nsresult aResult);
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nsresult SplitMailCites(nsISelection *aSelection, bool aPlaintext, bool *aHandled);
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nsresult WillDeleteSelection(mozilla::Selection* aSelection,
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nsIEditor::EDirection aAction,
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nsIEditor::EStripWrappers aStripWrappers,
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bool* aCancel, bool* aHandled);
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nsresult DidDeleteSelection(nsISelection *aSelection,
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nsIEditor::EDirection aDir,
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nsresult aResult);
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nsresult InsertBRIfNeeded(nsISelection *aSelection);
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nsresult GetGoodSelPointForNode(nsIDOMNode *aNode, nsIEditor::EDirection aAction,
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nsCOMPtr<nsIDOMNode> *outSelNode, int32_t *outSelOffset);
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nsresult JoinBlocks(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, bool *aCanceled);
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nsresult MoveBlock(nsIDOMNode *aLeft, nsIDOMNode *aRight, int32_t aLeftOffset, int32_t aRightOffset);
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nsresult MoveNodeSmart(nsIDOMNode *aSource, nsIDOMNode *aDest, int32_t *aOffset);
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nsresult MoveContents(nsIDOMNode *aSource, nsIDOMNode *aDest, int32_t *aOffset);
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nsresult DeleteNonTableElements(nsINode* aNode);
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nsresult WillMakeList(mozilla::Selection* aSelection,
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const nsAString* aListType,
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bool aEntireList,
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const nsAString* aBulletType,
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bool* aCancel, bool* aHandled,
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const nsAString* aItemType = nullptr);
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nsresult WillRemoveList(mozilla::Selection* aSelection,
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bool aOrdered, bool* aCancel, bool* aHandled);
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nsresult WillIndent(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult WillCSSIndent(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult WillHTMLIndent(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult WillOutdent(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult WillAlign(mozilla::Selection* aSelection,
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const nsAString* alignType,
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bool* aCancel, bool* aHandled);
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nsresult WillAbsolutePosition(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult WillRemoveAbsolutePosition(mozilla::Selection* aSelection,
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bool* aCancel, bool* aHandled);
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nsresult WillRelativeChangeZIndex(mozilla::Selection* aSelection,
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int32_t aChange,
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bool* aCancel, bool* aHandled);
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nsresult WillMakeDefListItem(mozilla::Selection* aSelection,
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const nsAString* aBlockType, bool aEntireList,
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bool* aCancel, bool* aHandled);
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nsresult WillMakeBasicBlock(mozilla::Selection* aSelection,
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const nsAString* aBlockType,
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bool* aCancel, bool* aHandled);
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nsresult DidMakeBasicBlock(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
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nsresult DidAbsolutePosition();
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nsresult AlignInnerBlocks(nsIDOMNode *aNode, const nsAString *alignType);
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nsresult AlignBlockContents(nsIDOMNode *aNode, const nsAString *alignType);
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nsresult AppendInnerFormatNodes(nsCOMArray<nsIDOMNode>& aArray,
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nsINode* aNode);
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nsresult AppendInnerFormatNodes(nsCOMArray<nsIDOMNode>& aArray,
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nsIDOMNode *aNode);
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nsresult GetFormatString(nsIDOMNode *aNode, nsAString &outFormat);
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nsresult GetInnerContent(nsIDOMNode *aNode, nsCOMArray<nsIDOMNode>& outArrayOfNodes, int32_t *aIndex, bool aList = true, bool aTble = true);
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already_AddRefed<nsIDOMNode> IsInListItem(nsIDOMNode* aNode);
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nsINode* IsInListItem(nsINode* aNode);
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nsresult ReturnInHeader(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, int32_t aOffset);
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nsresult ReturnInParagraph(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, int32_t aOffset, bool *aCancel, bool *aHandled);
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nsresult SplitParagraph(nsIDOMNode *aPara,
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nsIDOMNode *aBRNode,
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nsISelection *aSelection,
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nsCOMPtr<nsIDOMNode> *aSelNode,
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int32_t *aOffset);
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nsresult ReturnInListItem(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, int32_t aOffset);
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nsresult AfterEditInner(EditAction action,
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nsIEditor::EDirection aDirection);
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nsresult RemovePartOfBlock(nsIDOMNode *aBlock,
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nsIDOMNode *aStartChild,
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nsIDOMNode *aEndChild,
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nsCOMPtr<nsIDOMNode> *aLeftNode = 0,
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nsCOMPtr<nsIDOMNode> *aRightNode = 0);
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nsresult SplitBlock(nsIDOMNode *aBlock,
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nsIDOMNode *aStartChild,
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nsIDOMNode *aEndChild,
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nsCOMPtr<nsIDOMNode> *aLeftNode = 0,
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nsCOMPtr<nsIDOMNode> *aRightNode = 0,
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nsCOMPtr<nsIDOMNode> *aMiddleNode = 0);
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nsresult OutdentPartOfBlock(nsIDOMNode *aBlock,
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nsIDOMNode *aStartChild,
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nsIDOMNode *aEndChild,
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bool aIsBlockIndentedWithCSS,
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nsCOMPtr<nsIDOMNode> *aLeftNode = 0,
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nsCOMPtr<nsIDOMNode> *aRightNode = 0);
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nsresult ConvertListType(nsIDOMNode* aList,
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nsCOMPtr<nsIDOMNode>* outList,
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nsIAtom* aListType,
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nsIAtom* aItemType);
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nsresult ConvertListType(nsINode* aList,
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mozilla::dom::Element** aOutList,
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nsIAtom* aListType,
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nsIAtom* aItemType);
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nsresult CreateStyleForInsertText(nsISelection *aSelection, nsIDOMDocument *aDoc);
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nsresult IsEmptyBlock(nsIDOMNode *aNode,
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bool *outIsEmptyBlock,
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bool aMozBRDoesntCount = false,
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bool aListItemsNotEmpty = false);
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nsresult CheckForEmptyBlock(nsIDOMNode *aStartNode,
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nsIDOMNode *aBodyNode,
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nsISelection *aSelection,
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bool *aHandled);
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nsresult CheckForInvisibleBR(nsIDOMNode *aBlock, nsHTMLEditRules::BRLocation aWhere,
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nsCOMPtr<nsIDOMNode> *outBRNode, int32_t aOffset=0);
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nsresult ExpandSelectionForDeletion(nsISelection *aSelection);
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bool IsFirstNode(nsIDOMNode *aNode);
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bool IsLastNode(nsIDOMNode *aNode);
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nsresult NormalizeSelection(nsISelection *inSelection);
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void GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode* aNode,
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int32_t aOffset, EditAction actionID,
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nsCOMPtr<nsIDOMNode>* outNode, int32_t* outOffset);
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nsresult GetPromotedRanges(nsISelection *inSelection,
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nsCOMArray<nsIDOMRange> &outArrayOfRanges,
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EditAction inOperationType);
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nsresult PromoteRange(nsIDOMRange *inRange,
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EditAction inOperationType);
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nsresult GetNodesForOperation(nsCOMArray<nsIDOMRange>& inArrayOfRanges,
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nsCOMArray<nsIDOMNode>& outArrayOfNodes,
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EditAction inOperationType,
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bool aDontTouchContent=false);
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nsresult GetChildNodesForOperation(nsIDOMNode *inNode,
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nsCOMArray<nsIDOMNode>& outArrayOfNodes);
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nsresult GetNodesFromPoint(DOMPoint point,
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EditAction operation,
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nsCOMArray<nsIDOMNode>& arrayOfNodes,
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bool dontTouchContent);
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nsresult GetNodesFromSelection(nsISelection *selection,
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EditAction operation,
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nsCOMArray<nsIDOMNode>& arrayOfNodes,
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bool aDontTouchContent=false);
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nsresult GetListActionNodes(nsCOMArray<nsIDOMNode> &outArrayOfNodes, bool aEntireList, bool aDontTouchContent=false);
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void GetDefinitionListItemTypes(mozilla::dom::Element* aElement, bool* aDT, bool* aDD);
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nsresult GetParagraphFormatNodes(nsCOMArray<nsIDOMNode>& outArrayOfNodes, bool aDontTouchContent=false);
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nsresult LookInsideDivBQandList(nsCOMArray<nsIDOMNode>& aNodeArray);
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nsresult BustUpInlinesAtRangeEndpoints(nsRangeStore &inRange);
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nsresult BustUpInlinesAtBRs(nsIDOMNode *inNode,
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nsCOMArray<nsIDOMNode>& outArrayOfNodes);
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nsCOMPtr<nsIDOMNode> GetHighestInlineParent(nsIDOMNode* aNode);
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nsresult MakeTransitionList(nsCOMArray<nsIDOMNode>& inArrayOfNodes,
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nsTArray<bool> &inTransitionArray);
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nsresult RemoveBlockStyle(nsCOMArray<nsIDOMNode>& arrayOfNodes);
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nsresult ApplyBlockStyle(nsCOMArray<nsIDOMNode>& arrayOfNodes, const nsAString *aBlockTag);
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nsresult MakeBlockquote(nsCOMArray<nsIDOMNode>& arrayOfNodes);
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nsresult SplitAsNeeded(const nsAString *aTag, nsCOMPtr<nsIDOMNode> *inOutParent, int32_t *inOutOffset);
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nsresult AddTerminatingBR(nsIDOMNode *aBlock);
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nsresult JoinNodesSmart( nsIDOMNode *aNodeLeft,
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nsIDOMNode *aNodeRight,
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nsCOMPtr<nsIDOMNode> *aOutMergeParent,
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int32_t *aOutMergeOffset);
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nsresult GetTopEnclosingMailCite(nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutCiteNode, bool aPlaintext);
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nsresult PopListItem(nsIDOMNode *aListItem, bool *aOutOfList);
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nsresult RemoveListStructure(nsIDOMNode *aList);
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nsresult CacheInlineStyles(nsIDOMNode *aNode);
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nsresult ReapplyCachedStyles();
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void ClearCachedStyles();
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nsresult AdjustSpecialBreaks(bool aSafeToAskFrames = false);
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nsresult AdjustWhitespace(nsISelection *aSelection);
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nsresult PinSelectionToNewBlock(nsISelection *aSelection);
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nsresult CheckInterlinePosition(nsISelection *aSelection);
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nsresult AdjustSelection(nsISelection *aSelection, nsIEditor::EDirection aAction);
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nsresult FindNearSelectableNode(nsIDOMNode *aSelNode,
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int32_t aSelOffset,
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nsIEditor::EDirection &aDirection,
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nsCOMPtr<nsIDOMNode> *outSelectableNode);
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/**
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* Returns true if aNode1 or aNode2 or both is the descendant of some type of
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* table element, but their nearest table element ancestors differ. "Table
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* element" here includes not just <table> but also <td>, <tbody>, <tr>, etc.
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* The nodes count as being their own descendants for this purpose, so a
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* table element is its own nearest table element ancestor.
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*/
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bool InDifferentTableElements(nsIDOMNode* aNode1, nsIDOMNode* aNode2);
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bool InDifferentTableElements(nsINode* aNode1, nsINode* aNode2);
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nsresult RemoveEmptyNodes();
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nsresult SelectionEndpointInNode(nsINode *aNode, bool *aResult);
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nsresult UpdateDocChangeRange(nsIDOMRange *aRange);
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nsresult ConfirmSelectionInBody();
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nsresult InsertMozBRIfNeeded(nsIDOMNode *aNode);
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bool IsEmptyInline(nsIDOMNode *aNode);
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bool ListIsEmptyLine(nsCOMArray<nsIDOMNode> &arrayOfNodes);
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nsresult RemoveAlignment(nsIDOMNode * aNode, const nsAString & aAlignType, bool aChildrenOnly);
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nsresult MakeSureElemStartsOrEndsOnCR(nsIDOMNode *aNode, bool aStarts);
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nsresult AlignBlock(nsIDOMElement * aElement, const nsAString * aAlignType, bool aContentsOnly);
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nsresult RelativeChangeIndentationOfElementNode(nsIDOMNode *aNode, int8_t aRelativeChange);
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void DocumentModifiedWorker();
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// data members
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protected:
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nsHTMLEditor *mHTMLEditor;
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nsRefPtr<nsRange> mDocChangeRange;
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bool mListenerEnabled;
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bool mReturnInEmptyLIKillsList;
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bool mDidDeleteSelection;
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bool mDidRangedDelete;
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bool mRestoreContentEditableCount;
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nsRefPtr<nsRange> mUtilRange;
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uint32_t mJoinOffset; // need to remember an int across willJoin/didJoin...
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nsCOMPtr<nsIDOMNode> mNewBlock;
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nsRefPtr<nsRangeStore> mRangeItem;
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StyleCache mCachedStyles[SIZE_STYLE_TABLE];
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};
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#endif //nsHTMLEditRules_h__
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