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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
commite44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojox/widget/Loader.js
parenta62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
downloadsemanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
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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
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+if(!dojo._hasResource["dojox.widget.Loader"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.widget.Loader"] = true;
+dojo.provide("dojox.widget.Loader");
+dojo.experimental("dojox.widget.Loader");
+
+dojo.require("dijit._Widget");
+dojo.require("dijit._Templated");
+
+dojo.declare("dojox.widget.Loader", [dijit._Widget,dijit._Templated], {
+ // summary: a configurable global xhr-listener to display
+ // a loading message during running xhr's or to simply provide
+ // base-level topic to subscribe to for custom loading messages
+
+ // loadIcon: String
+ // location to the icon used.
+ loadIcon: dojo.moduleUrl("dojox.widget.Loader","icons/loading.gif"),
+
+ // loadMessage: String
+ // string to use for progress loading
+ loadMessage: 'Loading ...',
+
+ // hasVisuals: Boolean
+ // true to display a fixed loading message in TR cornder, false to unly provide
+ // "Loader" topic to subscribe to for your own custom loading message.
+ hasVisuals: true,
+
+ // attachToPointer
+ // true to use visual indicator where cursor is
+ attachToPointer: true,
+
+ // duration: Integer
+ // time in ms to toggle in/out the visual load indicator
+ duration: 125,
+
+ // _offset: Integer
+ // distance in px from the mouse pointer to show attachToPointer avatar
+ _offset: 16,
+
+ // holder for mousemove connection
+ _pointerConnect: null,
+ _xhrStart: null,
+ _xhrEnd: null,
+
+ templateString: '<div dojoAttachPoint="loadNode" class="dojoxLoader">'
+ +'<img src="${loadIcon}" class="dojoxLoaderIcon"> <span dojoAttachPoint="loadMessageNode" class="dojoxLoaderMessage"></span>'
+ +'</div>',
+
+ postCreate: function(){
+ // summary: setup the loader
+
+ if(!this.hasVisuals){
+ this.loadNode.style.display = "none"; // _destroy()?
+ }else{
+ if(this.attachToPointer){
+ dojo.removeClass(this.loadNode,"dojoxLoader");
+ dojo.addClass(this.loadNode,"dojoxLoaderPointer");
+ }
+ this._hide();
+ }
+ this._setMessage(this.loadMessage);
+
+ // FIXME: create our connections. would be easier, and this might be redundant
+ // if Deferred published something
+ this._xhrStart = dojo.connect(dojo,"_ioSetArgs",this,"_show");
+ this._xhrEnd = dojo.connect(dojo.Deferred.prototype,"_fire",this,"_hide");
+
+ },
+
+ _setMessage: function(/* String */ message){
+ // summary: set's the message in the loader
+ this.loadMessageNode.innerHTML = message;
+ },
+
+ _putLoader: function(/* Event */ e){
+ // summary: place the floating loading element based on mousemove connection position
+ dijit.placeOnScreen(this.loadNode,{ x: e.clientX+this._offset, y:e.clientY+this._offset }, ["TL","BR"]);
+ },
+
+ _show: function(){
+ // summary: publish and show progress indicator
+ dojo.publish("Loader",[{ message: 'started' }]);
+ if(this.hasVisuals){
+ if(this.attachToPointer){
+ this._pointerConnect = dojo.connect(document,"onmousemove",this,"_putLoader");
+ }
+ dojo.fadeIn({ node: this.loadNode, duration:this.duration }).play();
+ }
+ },
+
+ _hide: function(){
+ // summary: publish "xhr ended" and hide progress indicator
+ dojo.publish("Loader",[{ message: 'ended' }]);
+ if(this.hasVisuals){
+ if(this.attachToPointer){
+ dojo.disconnect(this._pointerConnect);
+ }
+ dojo.fadeOut({ node: this.loadNode, duration:this.duration }).play();
+ }
+ }
+
+});
+
+}