New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
author: mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f> 2008-11-13 09:49:11 +0000
committer: mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f> 2008-11-13 09:49:11 +0000
commit: e44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree: 95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dijit/form/Textarea.js
parent: a62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
download: semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.bz2
1 files changed, 261 insertions, 0 deletions
diff --git a/includes/js/dijit/form/Textarea.js b/includes/js/dijit/form/Textarea.js
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+if(!dojo._hasResource["dijit.form.Textarea"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dijit.form.Textarea"] = true;
+dojo.provide("dijit.form.Textarea");
+
+dojo.require("dijit.form._FormWidget");
+dojo.require("dojo.i18n");
+dojo.requireLocalization("dijit.form", "Textarea", null, "zh,pt,da,tr,ru,de,ROOT,sv,ja,he,fi,nb,el,ar,pt-pt,cs,fr,es,ko,nl,zh-tw,pl,it,hu");
+
+dojo.declare(
+	"dijit.form.Textarea",
+	dijit.form._FormValueWidget,
+	{
+	// summary: A resizing textarea widget
+	//
+	// description:
+	//	A textarea that resizes vertically to contain the data.
+	//	Takes nearly all the parameters (name, value, etc.) that a vanilla textarea takes.
+	//	Cols is not supported and the width should be specified with style width.
+	//	Rows is not supported since this widget adjusts the height.
+	//
+	// example:
+	// |	<textarea dojoType="dijit.form.TextArea">...</textarea>
+	//
+
+	attributeMap: dojo.mixin(dojo.clone(dijit.form._FormValueWidget.prototype.attributeMap),
+		{style:"styleNode", 'class':"styleNode"}),
+
+	templateString: (dojo.isIE || dojo.isSafari || dojo.isFF) ?
+				((dojo.isIE || dojo.isSafari || dojo.isFF >= 3) ? '<fieldset id="${id}" class="dijitInline dijitInputField dijitTextArea" dojoAttachPoint="styleNode" waiRole="presentation"><div dojoAttachPoint="editNode,focusNode,eventNode" dojoAttachEvent="onpaste:_changing,oncut:_changing" waiRole="textarea" style="text-decoration:none;display:block;overflow:auto;" contentEditable="true"></div>'
+					: '<span id="${id}" class="dijitReset">'+
+					'<iframe src="javascript:<html><head><title>${_iframeEditTitle}</title></head><body><script>var _postCreate=window.frameElement?window.frameElement.postCreate:null;if(_postCreate)_postCreate();</script></body></html>"'+
+							' dojoAttachPoint="iframe,styleNode" dojoAttachEvent="onblur:_onIframeBlur" class="dijitInline dijitInputField dijitTextArea"></iframe>')
+				+ '<textarea name="${name}" value="${value}" dojoAttachPoint="formValueNode" style="display:none;"></textarea>'
+				+ ((dojo.isIE || dojo.isSafari || dojo.isFF >= 3) ? '</fieldset>':'</span>')
+			: '<textarea id="${id}" name="${name}" value="${value}" dojoAttachPoint="formValueNode,editNode,focusNode,styleNode" class="dijitInputField dijitTextArea">'+dojo.isFF+'</textarea>',
+
+	setAttribute: function(/*String*/ attr, /*anything*/ value){
+		this.inherited(arguments);
+		switch(attr){
+			case "disabled":
+				this.formValueNode.disabled = this.disabled;
+			case "readOnly":
+				if(dojo.isIE || dojo.isSafari || dojo.isFF >= 3){
+					this.editNode.contentEditable = (!this.disabled && !this.readOnly);
+				}else if(dojo.isFF){
+					this.iframe.contentDocument.designMode = (this.disabled || this.readOnly)? "off" : "on";
+				}
+		}
+	},
+
+	focus: function(){
+		// summary: Received focus, needed for the InlineEditBox widget
+		if(!this.disabled && !this.readOnly){
+			this._changing(); // set initial height
+		}
+		dijit.focus(this.iframe || this.focusNode);
+	},
+
+	setValue: function(/*String*/ value, /*Boolean, optional*/ priorityChange){
+		var editNode = this.editNode;
+		if(typeof value == "string"){
+			editNode.innerHTML = ""; // wipe out old nodes
+			if(value.split){
+				var _this=this;
+				var isFirst = true;
+				dojo.forEach(value.split("\n"), function(line){
+					if(isFirst){ isFirst = false; }
+					else{
+						editNode.appendChild(dojo.doc.createElement("BR")); // preserve line breaks
+					}
+					if(line){
+						editNode.appendChild(dojo.doc.createTextNode(line)); // use text nodes so that imbedded tags can be edited
+					}
+				});
+			}else if(value){
+				editNode.appendChild(dojo.doc.createTextNode(value));
+			}
+			if(!dojo.isIE){
+				editNode.appendChild(dojo.doc.createElement("BR")); // so that you see a cursor
+			}
+		}else{
+			// blah<BR>blah --> blah\nblah
+			// <P>blah</P><P>blah</P> --> blah\nblah
+			// <DIV>blah</DIV><DIV>blah</DIV> --> blah\nblah
+			// &amp;&lt;&gt; -->&< >
+			value = editNode.innerHTML;
+			if(this.iframe){ // strip sizeNode
+				value = value.replace(/<div><\/div>\r?\n?$/i,"");
+			}
+			value = value.replace(/\s*\r?\n|^\s+|\s+$|&nbsp;/g,"").replace(/>\s+</g,"><").replace(/<\/(p|div)>$|^<(p|div)[^>]*>/gi,"").replace(/([^>])<div>/g,"$1\n").replace(/<\/p>\s*<p[^>]*>|<br[^>]*>|<\/div>\s*<div[^>]*>/gi,"\n").replace(/<[^>]*>/g,"").replace(/&amp;/gi,"\&").replace(/&lt;/gi,"<").replace(/&gt;/gi,">");
+			if(!dojo.isIE){
+				value = value.replace(/\n$/,""); // remove added <br>
+			}
+		}
+		this.value = this.formValueNode.value = value;
+		if(this.iframe){
+			var sizeNode = dojo.doc.createElement('div');
+			editNode.appendChild(sizeNode);
+			var newHeight = sizeNode.offsetTop;
+			if(editNode.scrollWidth > editNode.clientWidth){ newHeight+=16; } // scrollbar space needed?
+			if(this.lastHeight != newHeight){ // cache size so that we don't get a resize event because of a resize event
+				if(newHeight == 0){ newHeight = 16; } // height = 0 causes the browser to not set scrollHeight
+				dojo.contentBox(this.iframe, {h: newHeight});
+				this.lastHeight = newHeight;
+			}
+			editNode.removeChild(sizeNode);
+		}
+		dijit.form.Textarea.superclass.setValue.call(this, this.getValue(), priorityChange);
+	},
+
+	getValue: function(){
+		return this.value.replace(/\r/g,"");
+	},
+
+	postMixInProperties: function(){
+		this.inherited(arguments);
+		// don't let the source text be converted to a DOM structure since we just want raw text
+		if(this.srcNodeRef && this.srcNodeRef.innerHTML != ""){
+			this.value = this.srcNodeRef.innerHTML;
+			this.srcNodeRef.innerHTML = "";
+		}
+		if((!this.value || this.value == "") && this.srcNodeRef && this.srcNodeRef.value){
+			this.value = this.srcNodeRef.value;
+		}
+		if(!this.value){ this.value = ""; }
+		this.value = this.value.replace(/\r\n/g,"\n").replace(/&gt;/g,">").replace(/&lt;/g,"<").replace(/&amp;/g,"&");
+		if(dojo.isFF == 2){
+			// In the case of Firefox an iframe is used and when the text gets focus,
+			// focus is fired from the document object.  There isn't a way to put a
+			// waiRole on the document object and as a result screen readers don't
+			// announce the role.  As a result screen reader users are lost.
+			//
+			// An additional problem is that the browser gives the document object a
+			// very cryptic accessible name, e.g.
+			// wysiwyg://13/http://archive.dojotoolkit.org/nightly/dojotoolkit/dijit/tests/form/test_InlineEditBox.html
+			// When focus is fired from the document object, the screen reader speaks
+			// the accessible name.  The cyptic accessile name is confusing.
+			//
+			// A workaround for both of these problems is to give the iframe's
+			// document a title, the name of which is similar to a role name, i.e.
+			// "edit area".  This will be used as the accessible name which will replace
+			// the cryptic name and will also convey the role information to the user.
+			// Because it is read directly to the user, the string must be localized.
+			// In addition, since a <label> element can not be associated with an iframe, if 
+			// this control has a label, insert the label text into the title as well.
+			var _nlsResources = dojo.i18n.getLocalization("dijit.form", "Textarea");
+			this._iframeEditTitle = _nlsResources.iframeEditTitle;
+			this._iframeFocusTitle = _nlsResources.iframeFocusTitle;
+			var label=dojo.query('label[for="'+this.id+'"]');
+			if(label.length){
+				this._iframeEditTitle = label[0].innerHTML + " " + this._iframeEditTitle;
+			}
+			var body = this.focusNode = this.editNode = dojo.doc.createElement('BODY');
+			body.style.margin="0px";
+			body.style.padding="0px";
+			body.style.border="0px";
+		}
+	},
+
+	postCreate: function(){
+		if(dojo.isIE || dojo.isSafari || dojo.isFF >= 3){
+			this.domNode.style.overflowY = 'hidden';
+		}else if(dojo.isFF){
+			var w = this.iframe.contentWindow;
+			var title = '';
+			try { // #4715: peeking at the title can throw a security exception during iframe setup
+				title = this.iframe.contentDocument.title;
+			} catch(e) {}
+			if(!w || !title){
+				this.iframe.postCreate = dojo.hitch(this, this.postCreate);
+				return;
+			}
+			var d = w.document;
+			d.getElementsByTagName('HTML')[0].replaceChild(this.editNode, d.getElementsByTagName('BODY')[0]);
+			if(!this.isLeftToRight()){
+				d.getElementsByTagName('HTML')[0].dir = "rtl";
+			}			
+			this.iframe.style.overflowY = 'hidden';
+			this.eventNode = d;
+			// this.connect won't destroy this handler cleanly since its on the iframe's window object
+			// resize is a method of window, not document
+			w.addEventListener("resize", dojo.hitch(this, this._changed), false); // resize is only on the window object
+		}else{
+			this.focusNode = this.domNode;
+		}
+		if(this.eventNode){
+			this.connect(this.eventNode, "keypress", this._onKeyPress);
+			this.connect(this.eventNode, "mousemove", this._changed);
+			this.connect(this.eventNode, "focus", this._focused);
+			this.connect(this.eventNode, "blur", this._blurred);
+		}
+		if(this.editNode){
+			this.connect(this.editNode, "change", this._changed); // needed for mouse paste events per #3479
+		}
+		this.inherited('postCreate', arguments);
+	},
+
+	// event handlers, you can over-ride these in your own subclasses
+	_focused: function(e){
+		dojo.addClass(this.iframe||this.domNode, "dijitInputFieldFocused");
+		this._changed(e);
+	},
+
+	_blurred: function(e){
+		dojo.removeClass(this.iframe||this.domNode, "dijitInputFieldFocused");
+		this._changed(e, true);
+	},
+
+	_onIframeBlur: function(){
+		// Reset the title back to "edit area".
+		this.iframe.contentDocument.title = this._iframeEditTitle;
+	},
+
+	_onKeyPress: function(e){
+		if(e.keyCode == dojo.keys.TAB && !e.shiftKey && !e.ctrlKey && !e.altKey && this.iframe){
+			// Pressing the tab key in the iframe (with designMode on) will cause the
+			// entry of a tab character so we have to trap that here.  Since we don't
+			// know the next focusable object we put focus on the iframe and then the
+			// user has to press tab again (which then does the expected thing).
+			// A problem with that is that the screen reader user hears "edit area"
+			// announced twice which causes confusion.  By setting the
+			// contentDocument's title to "edit area frame" the confusion should be
+			// eliminated.
+			this.iframe.contentDocument.title = this._iframeFocusTitle;
+			// Place focus on the iframe. A subsequent tab or shift tab will put focus
+			// on the correct control.
+			// Note: Can't use this.focus() because that results in a call to
+			// dijit.focus and if that receives an iframe target it will set focus
+			// on the iframe's contentWindow.
+			this.iframe.focus();  // this.focus(); won't work
+			dojo.stopEvent(e);
+		}else if(e.keyCode == dojo.keys.ENTER){
+			e.stopPropagation();
+		}else if(this.inherited("_onKeyPress", arguments) && this.iframe){
+			// #3752:
+			// The key press will not make it past the iframe.
+			// If a widget is listening outside of the iframe, (like InlineEditBox)
+			// it will not hear anything.
+			// Create an equivalent event so everyone else knows what is going on.
+			var te = dojo.doc.createEvent("KeyEvents");
+			te.initKeyEvent("keypress", true, true, null, e.ctrlKey, e.altKey, e.shiftKey, e.metaKey, e.keyCode, e.charCode);
+			this.iframe.dispatchEvent(te);
+		}
+		this._changing();
+	},
+
+	_changing: function(e){
+		// summary: event handler for when a change is imminent
+		setTimeout(dojo.hitch(this, "_changed", e, false), 1);
+	},
+
+	_changed: function(e, priorityChange){
+		// summary: event handler for when a change has already happened
+		if(this.iframe && this.iframe.contentDocument.designMode != "on" && !this.disabled && !this.readOnly){
+			this.iframe.contentDocument.designMode="on"; // in case this failed on init due to being hidden
+		}
+		this.setValue(null, priorityChange || false);
+	}
+});
+
+}
author	mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>	2008-11-13 09:49:11 +0000
committer	mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>	2008-11-13 09:49:11 +0000
commit	e44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree	95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dijit/form/Textarea.js
parent	a62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
download	semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.bz2