e44a7e37b6
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
416 lines
14 KiB
JavaScript
416 lines
14 KiB
JavaScript
if(!dojo._hasResource["dijit._editor.plugins.EnterKeyHandling"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dijit._editor.plugins.EnterKeyHandling"] = true;
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dojo.provide("dijit._editor.plugins.EnterKeyHandling");
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dojo.declare("dijit._editor.plugins.EnterKeyHandling", dijit._editor._Plugin, {
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// summary: this plugin tries to handle enter key events to make all
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// browsers have identical behaviors.
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// blockNodeForEnter: String
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// this property decides the behavior of Enter key. It can be either P,
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// DIV, BR, or empty (which means disable this feature). Anything else
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// will trigger errors.
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blockNodeForEnter: 'P',
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constructor: function(args){
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if(args){
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dojo.mixin(this,args);
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}
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},
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setEditor: function(editor){
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this.editor = editor;
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if(this.blockNodeForEnter == 'BR'){
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if(dojo.isIE){
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editor.contentDomPreFilters.push(dojo.hitch(this, "regularPsToSingleLinePs"));
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editor.contentDomPostFilters.push(dojo.hitch(this, "singleLinePsToRegularPs"));
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editor.onLoadDeferred.addCallback(dojo.hitch(this, "_fixNewLineBehaviorForIE"));
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}else{
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editor.onLoadDeferred.addCallback(dojo.hitch(this,function(d){
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try{
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this.editor.document.execCommand("insertBrOnReturn", false, true);
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}catch(e){}
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return d;
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}));
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}
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}else if(this.blockNodeForEnter){
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//add enter key handler
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// FIXME: need to port to the new event code!!
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dojo['require']('dijit._editor.range');
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var h = dojo.hitch(this,this.handleEnterKey);
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editor.addKeyHandler(13, 0, h); //enter
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editor.addKeyHandler(13, 2, h); //shift+enter
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this.connect(this.editor,'onKeyPressed','onKeyPressed');
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}
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},
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connect: function(o,f,tf){
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if(!this._connects){
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this._connects=[];
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}
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this._connects.push(dojo.connect(o,f,this,tf));
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},
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destroy: function(){
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dojo.forEach(this._connects,dojo.disconnect);
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this._connects=[];
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},
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onKeyPressed: function(e){
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if(this._checkListLater){
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if(dojo.withGlobal(this.editor.window, 'isCollapsed', dijit)){
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if(!dojo.withGlobal(this.editor.window, 'hasAncestorElement', dijit._editor.selection, ['LI'])){
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//circulate the undo detection code by calling RichText::execCommand directly
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dijit._editor.RichText.prototype.execCommand.apply(this.editor, ['formatblock',this.blockNodeForEnter]);
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//set the innerHTML of the new block node
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var block = dojo.withGlobal(this.editor.window, 'getAncestorElement', dijit._editor.selection, [this.blockNodeForEnter]);
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if(block){
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block.innerHTML=this.bogusHtmlContent;
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if(dojo.isIE){
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//the following won't work, it will move the caret to the last list item in the previous list
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// var newrange = dijit.range.create();
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// newrange.setStart(block.firstChild,0);
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// var selection = dijit.range.getSelection(this.editor.window)
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// selection.removeAllRanges();
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// selection.addRange(newrange);
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//move to the start by move backward one char
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var r = this.editor.document.selection.createRange();
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r.move('character',-1);
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r.select();
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}
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}else{
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alert('onKeyPressed: Can not find the new block node'); //FIXME
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}
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}
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}
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this._checkListLater = false;
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}else if(this._pressedEnterInBlock){
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//the new created is the original current P, so we have previousSibling below
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this.removeTrailingBr(this._pressedEnterInBlock.previousSibling);
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delete this._pressedEnterInBlock;
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}
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},
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bogusHtmlContent: ' ',
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blockNodes: /^(?:H1|H2|H3|H4|H5|H6|LI)$/,
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handleEnterKey: function(e){
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// summary: manually handle enter key event to make the behavior consistant across
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// all supported browsers. See property blockNodeForEnter for available options
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if(!this.blockNodeForEnter){ return true; } //let browser handle this
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var selection, range, newrange;
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if(e.shiftKey //shift+enter always generates <br>
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|| this.blockNodeForEnter=='BR'){
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var parent = dojo.withGlobal(this.editor.window, "getParentElement", dijit._editor.selection);
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var header = dijit.range.getAncestor(parent,this.editor.blockNodes);
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if(header){
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if(header.tagName=='LI'){
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return true; //let brower handle
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}
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selection = dijit.range.getSelection(this.editor.window);
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range = selection.getRangeAt(0);
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if(!range.collapsed){
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range.deleteContents();
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}
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if(dijit.range.atBeginningOfContainer(header, range.startContainer, range.startOffset)){
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dojo.place(this.editor.document.createElement('br'), header, "before");
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}else if(dijit.range.atEndOfContainer(header, range.startContainer, range.startOffset)){
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dojo.place(this.editor.document.createElement('br'), header, "after");
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newrange = dijit.range.create();
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newrange.setStartAfter(header);
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selection.removeAllRanges();
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selection.addRange(newrange);
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}else{
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return true; //let brower handle
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}
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}else{
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//don't change this: do not call this.execCommand, as that may have other logic in subclass
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// FIXME
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dijit._editor.RichText.prototype.execCommand.call(this.editor, 'inserthtml', '<br>');
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}
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return false;
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}
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var _letBrowserHandle = true;
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//blockNodeForEnter is either P or DIV
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//first remove selection
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selection = dijit.range.getSelection(this.editor.window);
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range = selection.getRangeAt(0);
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if(!range.collapsed){
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range.deleteContents();
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}
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var block = dijit.range.getBlockAncestor(range.endContainer, null, this.editor.editNode);
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if((this._checkListLater = (block.blockNode && block.blockNode.tagName == 'LI'))){
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return true;
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}
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//text node directly under body, let's wrap them in a node
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if(!block.blockNode){
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this.editor.document.execCommand('formatblock', false, this.blockNodeForEnter);
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//get the newly created block node
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// FIXME
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block = {blockNode:dojo.withGlobal(this.editor.window, "getAncestorElement", dijit._editor.selection, [this.blockNodeForEnter]),
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blockContainer: this.editor.editNode};
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if(block.blockNode){
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if(!(block.blockNode.textContent || block.blockNode.innerHTML).replace(/^\s+|\s+$/g, "").length){
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this.removeTrailingBr(block.blockNode);
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return false;
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}
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}else{
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block.blockNode = this.editor.editNode;
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}
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selection = dijit.range.getSelection(this.editor.window);
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range = selection.getRangeAt(0);
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}
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var newblock = this.editor.document.createElement(this.blockNodeForEnter);
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newblock.innerHTML=this.bogusHtmlContent;
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this.removeTrailingBr(block.blockNode);
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if(dijit.range.atEndOfContainer(block.blockNode, range.endContainer, range.endOffset)){
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if(block.blockNode === block.blockContainer){
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block.blockNode.appendChild(newblock);
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}else{
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dojo.place(newblock, block.blockNode, "after");
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}
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_letBrowserHandle = false;
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//lets move caret to the newly created block
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newrange = dijit.range.create();
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newrange.setStart(newblock,0);
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selection.removeAllRanges();
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selection.addRange(newrange);
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if(this.editor.height){
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newblock.scrollIntoView(false);
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}
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}else if(dijit.range.atBeginningOfContainer(block.blockNode,
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range.startContainer, range.startOffset)){
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dojo.place(newblock, block.blockNode, block.blockNode === block.blockContainer ? "first" : "before");
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if(newblock.nextSibling && this.editor.height){
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//browser does not scroll the caret position into view, do it manually
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newblock.nextSibling.scrollIntoView(false);
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}
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_letBrowserHandle = false;
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}else{ //press enter in the middle of P
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if(dojo.isMoz){
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//press enter in middle of P may leave a trailing <br/>, let's remove it later
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this._pressedEnterInBlock = block.blockNode;
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}
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}
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return _letBrowserHandle;
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},
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removeTrailingBr: function(container){
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var para = /P|DIV|LI/i.test(container.tagName) ?
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container : dijit._editor.selection.getParentOfType(container,['P','DIV','LI']);
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if(!para){ return; }
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if(para.lastChild){
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if((para.childNodes.length > 1 && para.lastChild.nodeType == 3 && /^[\s\xAD]*$/.test(para.lastChild.nodeValue)) ||
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(para.lastChild && para.lastChild.tagName=='BR')){
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dojo._destroyElement(para.lastChild);
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}
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}
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if(!para.childNodes.length){
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para.innerHTML=this.bogusHtmlContent;
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}
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},
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_fixNewLineBehaviorForIE: function(d){
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if(this.editor.document.__INSERTED_EDITIOR_NEWLINE_CSS === undefined){
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var lineFixingStyles = "p{margin:0 !important;}";
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var insertCssText = function(
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/*String*/ cssStr,
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/*Document*/ doc,
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/*String*/ URI)
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{
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// summary:
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// Attempt to insert CSS rules into the document through inserting a
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// style element
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// DomNode Style = insertCssText(String ".dojoMenu {color: green;}"[, DomDoc document, dojo.uri.Uri Url ])
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if(!cssStr){
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return null; // HTMLStyleElement
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}
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if(!doc){ doc = document; }
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// if(URI){// fix paths in cssStr
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// cssStr = dojo.html.fixPathsInCssText(cssStr, URI);
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// }
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var style = doc.createElement("style");
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style.setAttribute("type", "text/css");
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// IE is b0rken enough to require that we add the element to the doc
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// before changing it's properties
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var head = doc.getElementsByTagName("head")[0];
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if(!head){ // must have a head tag
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console.debug("No head tag in document, aborting styles");
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return null; // HTMLStyleElement
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}else{
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head.appendChild(style);
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}
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if(style.styleSheet){// IE
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var setFunc = function(){
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try{
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style.styleSheet.cssText = cssStr;
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}catch(e){ console.debug(e); }
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};
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if(style.styleSheet.disabled){
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setTimeout(setFunc, 10);
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}else{
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setFunc();
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}
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}else{ // w3c
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var cssText = doc.createTextNode(cssStr);
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style.appendChild(cssText);
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}
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return style; // HTMLStyleElement
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}
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insertCssText(lineFixingStyles, this.editor.document);
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this.editor.document.__INSERTED_EDITIOR_NEWLINE_CSS = true;
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// this.regularPsToSingleLinePs(this.editNode);
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return d;
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}
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return null;
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},
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regularPsToSingleLinePs: function(element, noWhiteSpaceInEmptyP){
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function wrapLinesInPs(el){
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// move "lines" of top-level text nodes into ps
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function wrapNodes(nodes){
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// nodes are assumed to all be siblings
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var newP = nodes[0].ownerDocument.createElement('p'); // FIXME: not very idiomatic
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nodes[0].parentNode.insertBefore(newP, nodes[0]);
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dojo.forEach(nodes, function(node){
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newP.appendChild(node);
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});
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}
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var currentNodeIndex = 0;
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var nodesInLine = [];
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var currentNode;
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while(currentNodeIndex < el.childNodes.length){
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currentNode = el.childNodes[currentNodeIndex];
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if( (currentNode.nodeName!='BR') &&
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(currentNode.nodeType==1) &&
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(dojo.style(currentNode, "display")!="block")
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){
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nodesInLine.push(currentNode);
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}else{
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// hit line delimiter; process nodesInLine if there are any
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var nextCurrentNode = currentNode.nextSibling;
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if(nodesInLine.length){
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wrapNodes(nodesInLine);
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currentNodeIndex = (currentNodeIndex+1)-nodesInLine.length;
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if(currentNode.nodeName=="BR"){
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dojo._destroyElement(currentNode);
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}
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}
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nodesInLine = [];
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}
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currentNodeIndex++;
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}
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if(nodesInLine.length){ wrapNodes(nodesInLine); }
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}
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function splitP(el){
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// split a paragraph into seperate paragraphs at BRs
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var currentNode = null;
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var trailingNodes = [];
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var lastNodeIndex = el.childNodes.length-1;
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for(var i=lastNodeIndex; i>=0; i--){
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currentNode = el.childNodes[i];
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if(currentNode.nodeName=="BR"){
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var newP = currentNode.ownerDocument.createElement('p');
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dojo.place(newP, el, "after");
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if (trailingNodes.length==0 && i != lastNodeIndex) {
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newP.innerHTML = " "
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}
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dojo.forEach(trailingNodes, function(node){
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newP.appendChild(node);
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});
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dojo._destroyElement(currentNode);
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trailingNodes = [];
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}else{
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trailingNodes.unshift(currentNode);
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}
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}
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}
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var pList = [];
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var ps = element.getElementsByTagName('p');
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dojo.forEach(ps, function(p){ pList.push(p); });
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dojo.forEach(pList, function(p){
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if( (p.previousSibling) &&
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(p.previousSibling.nodeName == 'P' || dojo.style(p.previousSibling, 'display') != 'block')
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){
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var newP = p.parentNode.insertBefore(this.document.createElement('p'), p);
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// this is essential to prevent IE from losing the P.
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// if it's going to be innerHTML'd later we need
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// to add the to _really_ force the issue
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newP.innerHTML = noWhiteSpaceInEmptyP ? "" : " ";
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}
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splitP(p);
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},this.editor);
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wrapLinesInPs(element);
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return element;
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},
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singleLinePsToRegularPs: function(element){
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function getParagraphParents(node){
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var ps = node.getElementsByTagName('p');
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var parents = [];
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for(var i=0; i<ps.length; i++){
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var p = ps[i];
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var knownParent = false;
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for(var k=0; k < parents.length; k++){
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if(parents[k] === p.parentNode){
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knownParent = true;
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break;
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}
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}
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if(!knownParent){
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parents.push(p.parentNode);
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}
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}
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return parents;
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}
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function isParagraphDelimiter(node){
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if(node.nodeType != 1 || node.tagName != 'P'){
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return dojo.style(node, 'display') == 'block';
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}else{
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if(!node.childNodes.length || node.innerHTML==" "){ return true; }
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//return node.innerHTML.match(/^(<br\ ?\/?>| |\ \;)$/i);
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}
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return false;
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}
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var paragraphContainers = getParagraphParents(element);
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for(var i=0; i<paragraphContainers.length; i++){
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var container = paragraphContainers[i];
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var firstPInBlock = null;
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var node = container.firstChild;
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var deleteNode = null;
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while(node){
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if(node.nodeType != "1" || node.tagName != 'P'){
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firstPInBlock = null;
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}else if (isParagraphDelimiter(node)){
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deleteNode = node;
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firstPInBlock = null;
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}else{
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if(firstPInBlock == null){
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firstPInBlock = node;
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}else{
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if( (!firstPInBlock.lastChild || firstPInBlock.lastChild.nodeName != 'BR') &&
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(node.firstChild) &&
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(node.firstChild.nodeName != 'BR')
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){
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firstPInBlock.appendChild(this.editor.document.createElement('br'));
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}
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while(node.firstChild){
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firstPInBlock.appendChild(node.firstChild);
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}
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deleteNode = node;
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}
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}
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node = node.nextSibling;
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if(deleteNode){
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dojo._destroyElement(deleteNode);
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deleteNode = null;
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}
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}
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}
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return element;
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}
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});
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}
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