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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 HTMLEditRules_h
#define HTMLEditRules_h
#include "TypeInState.h"
#include "mozilla/SelectionState.h"
#include "mozilla/TextEditRules.h"
#include "nsCOMPtr.h"
#include "nsIEditActionListener.h"
#include "nsIEditor.h"
#include "nsIHTMLEditor.h"
#include "nsISupportsImpl.h"
#include "nsTArray.h"
#include "nscore.h"
class nsIAtom;
class nsIDOMCharacterData;
class nsIDOMDocument;
class nsIDOMElement;
class nsIDOMNode;
class nsIEditor;
class nsINode;
class nsRange;
namespace mozilla {
class HTMLEditor;
class RulesInfo;
class TextEditor;
struct EditorDOMPoint;
namespace dom {
class Element;
class Selection;
} // namespace dom
struct StyleCache final : 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 HTMLEditRules : public TextEditRules
, public nsIEditActionListener
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLEditRules, TextEditRules)
HTMLEditRules();
// nsIEditRules methods
NS_IMETHOD Init(TextEditor* aTextEditor) override;
NS_IMETHOD DetachEditor() override;
NS_IMETHOD BeforeEdit(EditAction action,
nsIEditor::EDirection aDirection) override;
NS_IMETHOD AfterEdit(EditAction action,
nsIEditor::EDirection aDirection) override;
NS_IMETHOD WillDoAction(Selection* aSelection, RulesInfo* aInfo,
bool* aCancel, bool* aHandled) override;
NS_IMETHOD DidDoAction(Selection* aSelection, RulesInfo* aInfo,
nsresult aResult) override;
NS_IMETHOD DocumentModified() override;
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) override;
NS_IMETHOD DidCreateNode(const nsAString& aTag, nsIDOMNode* aNode,
nsIDOMNode* aParent, int32_t aPosition,
nsresult aResult) override;
NS_IMETHOD WillInsertNode(nsIDOMNode* aNode, nsIDOMNode* aParent,
int32_t aPosition) override;
NS_IMETHOD DidInsertNode(nsIDOMNode* aNode, nsIDOMNode* aParent,
int32_t aPosition, nsresult aResult) override;
NS_IMETHOD WillDeleteNode(nsIDOMNode* aChild) override;
NS_IMETHOD DidDeleteNode(nsIDOMNode* aChild, nsresult aResult) override;
NS_IMETHOD WillSplitNode(nsIDOMNode* aExistingRightNode,
int32_t aOffset) override;
NS_IMETHOD DidSplitNode(nsIDOMNode* aExistingRightNode, int32_t aOffset,
nsIDOMNode* aNewLeftNode, nsresult aResult) override;
NS_IMETHOD WillJoinNodes(nsIDOMNode* aLeftNode, nsIDOMNode* aRightNode,
nsIDOMNode* aParent) override;
NS_IMETHOD DidJoinNodes(nsIDOMNode* aLeftNode, nsIDOMNode* aRightNode,
nsIDOMNode* aParent, nsresult aResult) override;
NS_IMETHOD WillInsertText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
const nsAString &aString) override;
NS_IMETHOD DidInsertText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
const nsAString &aString, nsresult aResult) override;
NS_IMETHOD WillDeleteText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
int32_t aLength) override;
NS_IMETHOD DidDeleteText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
int32_t aLength, nsresult aResult) override;
NS_IMETHOD WillDeleteSelection(nsISelection* aSelection) override;
NS_IMETHOD DidDeleteSelection(nsISelection* aSelection) override;
void DeleteNodeIfCollapsedText(nsINode& aNode);
protected:
virtual ~HTMLEditRules();
enum RulesEndpoint
{
kStart,
kEnd
};
void InitFields();
void WillInsert(Selection& aSelection, bool* aCancel);
nsresult WillInsertText(EditAction aAction,
Selection* aSelection,
bool* aCancel,
bool* aHandled,
const nsAString* inString,
nsAString* outString,
int32_t aMaxLength);
nsresult WillLoadHTML(Selection* aSelection, bool* aCancel);
nsresult WillInsertBreak(Selection& aSelection, bool* aCancel,
bool* aHandled);
nsresult StandardBreakImpl(nsINode& aNode, int32_t aOffset,
Selection& aSelection);
nsresult DidInsertBreak(Selection* aSelection, nsresult aResult);
nsresult SplitMailCites(Selection* aSelection, bool* aHandled);
nsresult WillDeleteSelection(Selection* aSelection,
nsIEditor::EDirection aAction,
nsIEditor::EStripWrappers aStripWrappers,
bool* aCancel, bool* aHandled);
nsresult DidDeleteSelection(Selection* aSelection,
nsIEditor::EDirection aDir,
nsresult aResult);
nsresult InsertBRIfNeeded(Selection* aSelection);
mozilla::EditorDOMPoint GetGoodSelPointForNode(nsINode& aNode,
nsIEditor::EDirection aAction);
nsresult JoinBlocks(nsIContent& aLeftNode, nsIContent& aRightNode,
bool* aCanceled);
nsresult MoveBlock(Element& aLeftBlock, Element& aRightBlock,
int32_t aLeftOffset, int32_t aRightOffset);
nsresult MoveNodeSmart(nsIContent& aNode, Element& aDestElement,
int32_t* aOffset);
nsresult MoveContents(Element& aElement, Element& aDestElement,
int32_t* aOffset);
nsresult DeleteNonTableElements(nsINode* aNode);
nsresult WillMakeList(Selection* aSelection,
const nsAString* aListType,
bool aEntireList,
const nsAString* aBulletType,
bool* aCancel, bool* aHandled,
const nsAString* aItemType = nullptr);
nsresult WillRemoveList(Selection* aSelection, bool aOrdered, bool* aCancel,
bool* aHandled);
nsresult WillIndent(Selection* aSelection, bool* aCancel, bool* aHandled);
nsresult WillCSSIndent(Selection* aSelection, bool* aCancel, bool* aHandled);
nsresult WillHTMLIndent(Selection* aSelection, bool* aCancel,
bool* aHandled);
nsresult WillOutdent(Selection& aSelection, bool* aCancel, bool* aHandled);
nsresult WillAlign(Selection& aSelection, const nsAString& aAlignType,
bool* aCancel, bool* aHandled);
nsresult WillAbsolutePosition(Selection& aSelection, bool* aCancel,
bool* aHandled);
nsresult WillRemoveAbsolutePosition(Selection* aSelection, bool* aCancel,
bool* aHandled);
nsresult WillRelativeChangeZIndex(Selection* aSelection, int32_t aChange,
bool* aCancel, bool* aHandled);
nsresult WillMakeDefListItem(Selection* aSelection,
const nsAString* aBlockType, bool aEntireList,
bool* aCancel, bool* aHandled);
nsresult WillMakeBasicBlock(Selection& aSelection,
const nsAString& aBlockType,
bool* aCancel, bool* aHandled);
nsresult DidMakeBasicBlock(Selection* aSelection, RulesInfo* aInfo,
nsresult aResult);
nsresult DidAbsolutePosition();
nsresult AlignInnerBlocks(nsINode& aNode, const nsAString* alignType);
nsresult AlignBlockContents(nsIDOMNode* aNode, const nsAString* alignType);
nsresult AppendInnerFormatNodes(nsTArray<OwningNonNull<nsINode>>& aArray,
nsINode* aNode);
nsresult GetFormatString(nsIDOMNode* aNode, nsAString &outFormat);
enum class Lists { no, yes };
enum class Tables { no, yes };
void GetInnerContent(nsINode& aNode,
nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
int32_t* aIndex, Lists aLists = Lists::yes,
Tables aTables = Tables::yes);
Element* IsInListItem(nsINode* aNode);
nsresult ReturnInHeader(Selection& aSelection, Element& aHeader,
nsINode& aNode, int32_t aOffset);
nsresult ReturnInParagraph(Selection* aSelection, nsIDOMNode* aHeader,
nsIDOMNode* aTextNode, int32_t aOffset,
bool* aCancel, bool* aHandled);
nsresult SplitParagraph(nsIDOMNode* aPara,
nsIContent* aBRNode,
Selection* aSelection,
nsCOMPtr<nsIDOMNode>* aSelNode,
int32_t* aOffset);
nsresult ReturnInListItem(Selection& aSelection, Element& aHeader,
nsINode& aNode, int32_t aOffset);
nsresult AfterEditInner(EditAction action,
nsIEditor::EDirection aDirection);
nsresult RemovePartOfBlock(Element& aBlock, nsIContent& aStartChild,
nsIContent& aEndChild);
void SplitBlock(Element& aBlock,
nsIContent& aStartChild,
nsIContent& aEndChild,
nsIContent** aOutLeftNode = nullptr,
nsIContent** aOutRightNode = nullptr,
nsIContent** aOutMiddleNode = nullptr);
nsresult OutdentPartOfBlock(Element& aBlock,
nsIContent& aStartChild,
nsIContent& aEndChild,
bool aIsBlockIndentedWithCSS,
nsIContent** aOutLeftNode,
nsIContent** aOutRightNode);
nsresult ConvertListType(Element* aList, Element** aOutList,
nsIAtom* aListType, nsIAtom* aItemType);
nsresult CreateStyleForInsertText(Selection& aSelection, nsIDocument& aDoc);
enum class MozBRCounts { yes, no };
nsresult IsEmptyBlock(Element& aNode, bool* aOutIsEmptyBlock,
MozBRCounts aMozBRCounts = MozBRCounts::yes);
nsresult CheckForEmptyBlock(nsINode* aStartNode, Element* aBodyNode,
Selection* aSelection,
nsIEditor::EDirection aAction, bool* aHandled);
enum class BRLocation { beforeBlock, blockEnd };
Element* CheckForInvisibleBR(Element& aBlock, BRLocation aWhere,
int32_t aOffset = 0);
nsresult ExpandSelectionForDeletion(Selection& aSelection);
bool IsFirstNode(nsIDOMNode* aNode);
bool IsLastNode(nsIDOMNode* aNode);
nsresult NormalizeSelection(Selection* aSelection);
void GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode* aNode,
int32_t aOffset, EditAction actionID,
nsCOMPtr<nsIDOMNode>* outNode, int32_t* outOffset);
void GetPromotedRanges(Selection& aSelection,
nsTArray<RefPtr<nsRange>>& outArrayOfRanges,
EditAction inOperationType);
void PromoteRange(nsRange& aRange, EditAction inOperationType);
enum class TouchContent { no, yes };
nsresult GetNodesForOperation(
nsTArray<RefPtr<nsRange>>& aArrayOfRanges,
nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
EditAction aOperationType,
TouchContent aTouchContent = TouchContent::yes);
void GetChildNodesForOperation(
nsINode& aNode,
nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes);
nsresult GetNodesFromPoint(EditorDOMPoint aPoint,
EditAction aOperation,
nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes,
TouchContent aTouchContent);
nsresult GetNodesFromSelection(
Selection& aSelection,
EditAction aOperation,
nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes,
TouchContent aTouchContent = TouchContent::yes);
enum class EntireList { no, yes };
nsresult GetListActionNodes(
nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
EntireList aEntireList,
TouchContent aTouchContent = TouchContent::yes);
void GetDefinitionListItemTypes(Element* aElement, bool* aDT, bool* aDD);
nsresult GetParagraphFormatNodes(
nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes,
TouchContent aTouchContent = TouchContent::yes);
void LookInsideDivBQandList(nsTArray<OwningNonNull<nsINode>>& aNodeArray);
nsresult BustUpInlinesAtRangeEndpoints(RangeItem& inRange);
nsresult BustUpInlinesAtBRs(
nsIContent& aNode,
nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes);
nsIContent* GetHighestInlineParent(nsINode& aNode);
void MakeTransitionList(nsTArray<OwningNonNull<nsINode>>& aNodeArray,
nsTArray<bool>& aTransitionArray);
nsresult RemoveBlockStyle(nsTArray<OwningNonNull<nsINode>>& aNodeArray);
nsresult ApplyBlockStyle(nsTArray<OwningNonNull<nsINode>>& aNodeArray,
nsIAtom& aBlockTag);
nsresult MakeBlockquote(nsTArray<OwningNonNull<nsINode>>& aNodeArray);
nsresult SplitAsNeeded(nsIAtom& aTag, OwningNonNull<nsINode>& inOutParent,
int32_t& inOutOffset);
nsresult SplitAsNeeded(nsIAtom& aTag, nsCOMPtr<nsINode>& inOutParent,
int32_t& inOutOffset);
nsresult AddTerminatingBR(nsIDOMNode *aBlock);
EditorDOMPoint JoinNodesSmart(nsIContent& aNodeLeft,
nsIContent& aNodeRight);
Element* GetTopEnclosingMailCite(nsINode& aNode);
nsresult PopListItem(nsIDOMNode* aListItem, bool* aOutOfList);
nsresult RemoveListStructure(Element& aList);
nsresult CacheInlineStyles(nsIDOMNode* aNode);
nsresult ReapplyCachedStyles();
void ClearCachedStyles();
void AdjustSpecialBreaks();
nsresult AdjustWhitespace(Selection* aSelection);
nsresult PinSelectionToNewBlock(Selection* aSelection);
void CheckInterlinePosition(Selection& aSelection);
nsresult AdjustSelection(Selection* 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(nsRange* aRange);
nsresult ConfirmSelectionInBody();
nsresult InsertMozBRIfNeeded(nsINode& aNode);
bool IsEmptyInline(nsINode& aNode);
bool ListIsEmptyLine(nsTArray<OwningNonNull<nsINode>>& arrayOfNodes);
nsresult RemoveAlignment(nsIDOMNode* aNode, const nsAString& aAlignType,
bool aChildrenOnly);
nsresult MakeSureElemStartsOrEndsOnCR(nsIDOMNode* aNode, bool aStarts);
enum class ContentsOnly { no, yes };
nsresult AlignBlock(Element& aElement,
const nsAString& aAlignType, ContentsOnly aContentsOnly);
enum class Change { minus, plus };
nsresult ChangeIndentation(Element& aElement, Change aChange);
void DocumentModifiedWorker();
protected:
HTMLEditor* mHTMLEditor;
RefPtr<nsRange> mDocChangeRange;
bool mListenerEnabled;
bool mReturnInEmptyLIKillsList;
bool mDidDeleteSelection;
bool mDidRangedDelete;
bool mRestoreContentEditableCount;
RefPtr<nsRange> mUtilRange;
// Need to remember an int across willJoin/didJoin...
uint32_t mJoinOffset;
nsCOMPtr<Element> mNewBlock;
RefPtr<RangeItem> mRangeItem;
StyleCache mCachedStyles[SIZE_STYLE_TABLE];
};
} // namespace mozilla
#endif // #ifndef HTMLEditRules_h
|
