Subversion Repositories Applications.papyrus

if(!dojo._hasResource["dijit._editor.selection"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.

dojo._hasResource["dijit._editor.selection"] = true;

dojo.provide("dijit._editor.selection");

// FIXME:

//		all of these methods branch internally for IE. This is probably

//		sub-optimal in terms of runtime performance. We should investigate the

//		size difference for differentiating at definition time.

dojo.mixin(dijit._editor.selection, {

	getType: function(){

		// summary: Get the selection type (like document.select.type in IE).

		if(dojo.doc["selection"]){ //IE

			return dojo.doc.selection.type.toLowerCase();

		}else{

			var stype = "text";

			// Check if the actual selection is a CONTROL (IMG, TABLE, HR, etc...).

			var oSel;

			try{

				oSel = dojo.global.getSelection();

			}catch(e){ /*squelch*/ }

			if(oSel && oSel.rangeCount==1){

				var oRange = oSel.getRangeAt(0);

				if(	(oRange.startContainer == oRange.endContainer) &&

					((oRange.endOffset - oRange.startOffset) == 1) &&

					(oRange.startContainer.nodeType != 3 /* text node*/)

				){

					stype = "control";

				}

			}

			return stype;

		}

	},

	getSelectedText: function(){

		// summary:

		//		Return the text (no html tags) included in the current selection or null if no text is selected

		if(dojo.doc["selection"]){ //IE

			if(dijit._editor.selection.getType() == 'control'){

				return null;

			}

			return dojo.doc.selection.createRange().text;

		}else{

			var selection = dojo.global.getSelection();

			if(selection){

				return selection.toString();

			}

		}

	},

	getSelectedHtml: function(){

		// summary:

		//		Return the html of the current selection or null if unavailable

		if(dojo.doc["selection"]){ //IE

			if(dijit._editor.selection.getType() == 'control'){

				return null;

			}

			return dojo.doc.selection.createRange().htmlText;

		}else{

			var selection = dojo.global.getSelection();

			if(selection && selection.rangeCount){

				var frag = selection.getRangeAt(0).cloneContents();

				var div = document.createElement("div");

				div.appendChild(frag);

				return div.innerHTML;

			}

			return null;

		}

	},

	getSelectedElement: function(){

		// summary:

		//		Retrieves the selected element (if any), just in the case that

		//		a single element (object like and image or a table) is

		//		selected.

		if(this.getType() == "control"){

			if(dojo.doc["selection"]){ //IE

				var range = dojo.doc.selection.createRange();

				if(range && range.item){

					return dojo.doc.selection.createRange().item(0);

				}

			}else{

				var selection = dojo.global.getSelection();

				return selection.anchorNode.childNodes[ selection.anchorOffset ];

			}

		}

	},

	getParentElement: function(){

		// summary:

		//		Get the parent element of the current selection

		if(this.getType() == "control"){

			var p = this.getSelectedElement();

			if(p){ return p.parentNode; }

		}else{

			if(dojo.doc["selection"]){ //IE

				return dojo.doc.selection.createRange().parentElement();

			}else{

				var selection = dojo.global.getSelection();

				if(selection){

					var node = selection.anchorNode;

					while(node && (node.nodeType != 1)){ // not an element

						node = node.parentNode;

					}

					return node;

				}

			}

		}

	},

	hasAncestorElement: function(/*String*/tagName /* ... */){

		// summary:

		// 		Check whether current selection has a  parent element which is

		// 		of type tagName (or one of the other specified tagName)

		return (this.getAncestorElement.apply(this, arguments) != null);

	},

	getAncestorElement: function(/*String*/tagName /* ... */){

		// summary:

		//		Return the parent element of the current selection which is of

		//		type tagName (or one of the other specified tagName)

		var node = this.getSelectedElement() || this.getParentElement();

		return this.getParentOfType(node, arguments);

	},

	isTag: function(/*DomNode*/node, /*Array*/tags){

		if(node && node.tagName){

			var _nlc = node.tagName.toLowerCase();

			for(var i=0; i<tags.length; i++){

				var _tlc = String(tags[i]).toLowerCase();

				if(_nlc == _tlc){

					return _tlc;

				}

			}

		}

		return "";

	},

	getParentOfType: function(/*DomNode*/node, /*Array*/tags){

		while(node){

			if(this.isTag(node, tags).length){

				return node;

			}

			node = node.parentNode;

		}

		return null;

	},

	remove: function(){

		// summary: delete current selection

		var _s = dojo.doc.selection;

		if(_s){ //IE

			if(_s.type.toLowerCase() != "none"){

				_s.clear();

			}

			return _s;

		}else{

			_s = dojo.global.getSelection();

			_s.deleteFromDocument();

			return _s;

		}

	},

	selectElementChildren: function(/*DomNode*/element,/*Boolean?*/nochangefocus){

		// summary:

		//		clear previous selection and select the content of the node

		//		(excluding the node itself)

		var _window = dojo.global;

		var _document = dojo.doc;

		element = dojo.byId(element);

		if(_document.selection && dojo.body().createTextRange){ // IE

			var range = element.ownerDocument.body.createTextRange();

			range.moveToElementText(element);

			if(!nochangefocus){

				range.select();

			}

		}else if(_window["getSelection"]){

			var selection = _window.getSelection();

			if(selection["setBaseAndExtent"]){ // Safari

				selection.setBaseAndExtent(element, 0, element, element.innerText.length - 1);

			}else if(selection["selectAllChildren"]){ // Mozilla

				selection.selectAllChildren(element);

			}

		}

	},

	selectElement: function(/*DomNode*/element,/*Boolean?*/nochangefocus){

		// summary:

		//		clear previous selection and select element (including all its children)

		var _document = dojo.doc;

		element = dojo.byId(element);

		if(_document.selection && dojo.body().createTextRange){ // IE

			try{

				var range = dojo.body().createControlRange();

				range.addElement(element);

				if(!nochangefocus){

					range.select();

				}

			}catch(e){

				this.selectElementChildren(element,nochangefocus);

			}

		}else if(dojo.global["getSelection"]){

			var selection = dojo.global.getSelection();

			// FIXME: does this work on Safari?

			if(selection["removeAllRanges"]){ // Mozilla

				var range = _document.createRange() ;

				range.selectNode(element) ;

				selection.removeAllRanges() ;

				selection.addRange(range) ;

			}

		}

	}

});

}