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nsIEditor 编辑

editor/nsIEditor.idlScriptable Provides methods and attributes used when editing page content. 66 Introduced Gecko 1.0 Inherits from: nsISupports Last changed in Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15)

Method overview

[noscript] void init(in nsIDOMDocument doc, in nsIContent aRoot, in nsISelectionController aSelCon, in unsigned long aFlags);

void setAttributeOrEquivalent(in nsIDOMElement element, in AString sourceAttrName, in AString sourceAttrValue, in boolean aSuppressTransaction);

void removeAttributeOrEquivalent(in nsIDOMElement element, in DOMString sourceAttrName, in boolean aSuppressTransaction);

void postCreate();

void preDestroy(in boolean aDestroyingFrames);

Selected Content Removal

void deleteSelection(in short action,in short stripWrappers);

Document Info and File Methods

void resetModificationCount();

long getModificationCount();

void incrementModificationCount(in long aModCount);

Transaction Methods

void doTransaction(in nsITransaction txn);

void enableUndo(in boolean enable);

void undo(in unsigned long count);

void canUndo(out boolean isEnabled, out boolean canUndo);

void redo(in unsigned long count);

void canRedo(out boolean isEnabled, out boolean canRedo);

void beginTransaction();

void endTransaction();

void beginPlaceHolderTransaction(in nsIAtom name);

void endPlaceHolderTransaction();

boolean shouldTxnSetSelection();

void setShouldTxnSetSelection(in boolean should);

Inline Spellchecking Methods

nsIInlineSpellChecker getInlineSpellChecker(in boolean autoCreate);

void syncRealTimeSpell();

void setSpellcheckUserOverride(in boolean enable);

Clipboard Methods

void cut();

boolean canCut();

void copy();

boolean canCopy();

void paste(in long aSelectionType);

boolean canPaste(in long aSelectionType);

Selection Methods

void selectAll();

void beginningOfDocument();

void endOfDocument();

Drag/Drop Methods

boolean canDrag(in nsIDOMEvent aEvent);

void doDrag(in nsIDOMEvent aEvent);

void insertFromDrop(in nsIDOMEvent aEvent);

Node Manipulation Methods

void setAttribute(in nsIDOMElement aElement, in AString attributestr,in AString attvalue);

boolean getAttributeValue(in nsIDOMElement aElement, in AString attributestr, out AString resultValue);

void removeAttribute(in nsIDOMElement aElement, in AString aAttribute);

void cloneAttribute(in AString aAttribute, in nsIDOMNode aSourceNode);

void cloneAttributes(in nsIDOMNode destNode, in nsIDOMNode sourceNode);

nsIDOMNode createNode(in AString tag, in nsIDOMNode parent, in long position);

void insertNode(in nsIDOMNode node, in nsIDOMNode parent, in long aPosition);

void splitNode(in nsIDOMNode existingRightNode, in long offset, out nsIDOMNode newLeftNode);

void joinNodes(in nsIDOMNode leftNode, in nsIDOMNode rightNode, in nsIDOMNode parent);

void deleteNode(in nsIDOMNode child);

void markNodeDirty(in nsIDOMNode node);

Direction Controller

void switchTextDirection();

Output Methods

AString outputToString(in AString formatType, in unsigned long flags);

Example:
// flags are declared in base/public/nsIDocumentEncoder.idl
// OutputSelectionOnly = 1,         OutputFormatted = 2,
// OutputRaw = 4,                   OutputBodyOnly = 8,
// OutputPreformatted = 16,         OutputWrap = 32,
// OutputFormatFlowed = 64,         OutputAbsoluteLinks = 258,
// OutputEncodeW3CEntities = 256,   OutputCRLineBreak = 512,
// OutputLFLineBreak = 1024,        OutputNoScriptContent = 2048,
// OutputNoFramesContent = 4096,    OutputNoFormattingInPre = 8192,
// OutputEncodeBasicEntities=16384, OutputEncodeLatin1Entities=32768,
// OutputEncodeHTMLEntities=65536,  OutputPersistNBSP=131072

editorAPI.outputToString('text/html', 2);
editorAPI.outputToString('text/plain', 4);

// output the body tag, body children and the html end tag (</html>).
// tag name are in lower case  with <br>.
editorAPI.outputToString('text/html', 8);

// XML: all in xml with _moz_dirty="" in new tags, HTML tags are in upper case
// application/xhtml+xml format do the same
editorAPI.outputToString('text/xml', 2); // the body is not recognized, everything is printed

void outputToStream(in nsIOutputStream aStream, in AString formatType, in ACString charsetOverride, in unsigned long flags);

Listener Methods

void addEditorObserver(in nsIEditorObserver observer);Obsolete since Gecko 18

void setEditorObserver(in EditActionListener observer);

void removeEditorObserver(in nsIEditorObserver observer Obsolete since Gecko 18);

void addEditActionListener(in nsIEditActionListener listener);

void removeEditActionListener(in nsIEditActionListener listener);

void addDocumentStateListener(in nsIDocumentStateListener listener);

void removeDocumentStateListener(in nsIDocumentStateListener listener);

Debug Methods

void dumpContentTree();

void debugDumpContent() ;

void debugUnitTests(out long outNumTests, out long outNumTestsFailed);

[notxpcom] boolean isModifiableNode(in nsIDOMNode aNode);

Constants

Load Flags

Constant	Value	Description
`eNone`	0
`eNext`	1
`ePrevious`	2
`eNextWord`	3
`ePreviousWord`	4
`eToBeginningOfLine`	5
`eToEndOfLine`	6

Attributes

Attribute	Type	Description
`contentsMIMEType`	`string`	The MIME type of the document.
`document`	`Document`	Read only. The DOM Document this editor is associated with.
`documentCharacterSet`	`ACString`	Sets the current 'Save' document character set.
`documentIsEmpty`	`boolean`	Read only. Returns `true` if the document has no meaningful content.
`documentModified`	`boolean`	Read only. Returns `true` if the document is modifed and needs saving.
`flags`	`unsigned long`	Edit flags for this editor. May be set at any time.
`isDocumentEditable`	`PRBool`	Read only. Returns `true` if we have a document that is not marked read-only.
`isSelectionEditable`	`boolean`	Read only. `true` if the current selection anchor is editable; otherwise `false`. This helps to support cases where only parts of the document are editable, by letting you see if the current selection is in an editable section.
`rootElement`	`nsIDOMElement`	Read only. The root editable element, which for a document is its body.
`selection`	`nsISelection`	Read only. The selection/caret for this editor. In the case of a design mode document, this is the same as the window's selection.
`selectionController`	`nsISelectionController`	Read only. The selection controller for the current presentation.

Methods

Native code only!

init

Initializes the editor's services.

[noscript] void init(
  in nsIDOMDocument doc,
  in nsIPresShellPtr shell, Obsolete since Gecko 5
  in nsIContent aRoot,
  in nsISelectionController aSelCon,
  in unsigned long aFlags
);

Parameters

doc: The document to observe.
shell Obsolete since Gecko 5.0: The nsIPresShellPtr representing the presentation shell displaying the document. This parameter was removed in Gecko 5.0 (Firefox 5.0 / Thunderbird 5.0 / SeaMonkey 2.2).
aRoot: The root of the editable section of this document; if it's null, the editor gets its root from document.body.
aSelCon: The nsISelectionController object used to get selection location information. This should be null for HTML editors.
aFlags: A bit mask of flags controlling the editor's behavior. Need to document what the possible values are.