diff options
Diffstat (limited to '')
| -rw-r--r-- | js/dojo-1.6/dojox/mdnd/AutoScroll.js | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/js/dojo-1.6/dojox/mdnd/AutoScroll.js b/js/dojo-1.6/dojox/mdnd/AutoScroll.js new file mode 100644 index 0000000..da53714 --- /dev/null +++ b/js/dojo-1.6/dojox/mdnd/AutoScroll.js @@ -0,0 +1,206 @@ +/*
+ Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
+ Available via Academic Free License >= 2.1 OR the modified BSD license.
+ see: http://dojotoolkit.org/license for details
+*/
+
+
+if(!dojo._hasResource["dojox.mdnd.AutoScroll"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.mdnd.AutoScroll"] = true;
+dojo.provide("dojox.mdnd.AutoScroll");
+
+dojo.declare(
+ "dojox.mdnd.AutoScroll",
+ null,
+{
+ // summary:
+ // Activate scrolling while dragging a widget.
+
+ // interval: Integer
+ // default mouse move offset
+ interval: 3,
+
+ // recursiveTimer: Integer
+ recursiveTimer: 10,
+
+ // marginMouse: Integer
+ // Default mouse margin
+ marginMouse: 50,
+
+ constructor: function(){
+ //console.log("dojox.mdnd.AutoScroll ::: constructor ");
+ this.resizeHandler = dojo.connect(dojo.global,"onresize", this, function(){
+ this.getViewport();
+ });
+ dojo.ready(dojo.hitch(this, "init"));
+ },
+
+ init: function(){
+ //console.log("dojox.mdnd.AutoScroll ::: init ");
+ this._html = (dojo.isWebKit) ? dojo.body() : dojo.body().parentNode;
+ this.getViewport();
+ },
+
+ getViewport:function(){
+ // summary:
+ // Set the visible part of the window. Varies accordion to Navigator.
+
+ //console.log("dojox.mdnd.AutoScroll ::: getViewport ");
+ var d = dojo.doc, dd = d.documentElement, w = window, b = dojo.body();
+ if(dojo.isMozilla){
+ this._v = { 'w': dd.clientWidth, 'h': w.innerHeight }; // Object
+ }
+ else if(!dojo.isOpera && w.innerWidth){
+ this._v = { 'w': w.innerWidth, 'h': w.innerHeight }; // Object
+ }
+ else if(!dojo.isOpera && dd && dd.clientWidth){
+ this._v = { 'w': dd.clientWidth, 'h': dd.clientHeight }; // Object
+ }
+ else if(b.clientWidth){
+ this._v = { 'w': b.clientWidth, 'h': b.clientHeight }; // Object
+ }
+ },
+
+ setAutoScrollNode: function(/*Node*/node){
+ // summary:
+ // set the node which is dragged
+ // node:
+ // node to scroll
+
+ //console.log("dojox.mdnd.AutoScroll ::: setAutoScrollNode ");
+ this._node = node;
+ },
+
+ setAutoScrollMaxPage: function(){
+ // summary:
+ // Set the hightest heigh and width authorized scroll.
+
+ //console.log("dojox.mdnd.AutoScroll ::: setAutoScrollMaxPage ");
+ this._yMax = this._html.scrollHeight;
+ this._xMax = this._html.scrollWidth;
+ },
+
+ checkAutoScroll: function(/*Event*/e){
+ // summary:
+ // Check if an autoScroll have to be launched.
+
+ //console.log("dojox.mdnd.AutoScroll ::: checkAutoScroll");
+ if(this._autoScrollActive){
+ this.stopAutoScroll();
+ }
+ this._y = e.pageY;
+ this._x = e.pageX;
+ if(e.clientX < this.marginMouse){
+ this._autoScrollActive = true;
+ this._autoScrollLeft(e);
+ }
+ else if(e.clientX > this._v.w - this.marginMouse){
+ this._autoScrollActive = true;
+ this._autoScrollRight(e);
+ }
+ if(e.clientY < this.marginMouse){
+ this._autoScrollActive = true;
+ this._autoScrollUp(e);
+
+ }
+ else if(e.clientY > this._v.h - this.marginMouse){
+ this._autoScrollActive = true;
+ this._autoScrollDown();
+ }
+ },
+
+ _autoScrollDown: function(){
+ // summary:
+ // Manage the down autoscroll.
+ // tags:
+ // protected
+
+ //console.log("dojox.mdnd.AutoScroll ::: _autoScrollDown ");
+ if(this._timer){
+ clearTimeout(this._timer);
+ }
+ if(this._autoScrollActive && this._y + this.marginMouse < this._yMax){
+ this._html.scrollTop += this.interval;
+ this._node.style.top = (parseInt(this._node.style.top) + this.interval) + "px";
+ this._y += this.interval;
+ this._timer = setTimeout(dojo.hitch(this, "_autoScrollDown"), this.recursiveTimer);
+ }
+ },
+
+ _autoScrollUp: function(){
+ // summary:
+ // Manage the up autoscroll.
+ // tags:
+ // protected
+
+ //console.log("dojox.mdnd.AutoScroll ::: _autoScrollUp ");
+ if(this._timer){
+ clearTimeout(this._timer);
+ }
+ if(this._autoScrollActive && this._y - this.marginMouse > 0){
+ this._html.scrollTop -= this.interval;
+ this._node.style.top = (parseInt(this._node.style.top) - this.interval) + "px";
+ this._y -= this.interval;
+ this._timer = setTimeout(dojo.hitch(this, "_autoScrollUp"),this.recursiveTimer);
+ }
+ },
+
+ _autoScrollRight: function(){
+ // summary:
+ // Manage the right autoscroll.
+ // tags:
+ // protected
+
+ //console.log("dojox.mdnd.AutoScroll ::: _autoScrollRight ");
+ if(this._timer){
+ clearTimeout(this._timer);
+ }
+ if(this._autoScrollActive && this._x + this.marginMouse < this._xMax){
+ this._html.scrollLeft += this.interval;
+ this._node.style.left = (parseInt(this._node.style.left) + this.interval) + "px";
+ this._x += this.interval;
+ this._timer = setTimeout(dojo.hitch(this, "_autoScrollRight"), this.recursiveTimer);
+ }
+ },
+
+ _autoScrollLeft: function(/*Event*/e){
+ // summary:
+ // Manage the left autoscroll.
+ // tags:
+ // protected
+
+ //console.log("dojox.mdnd.AutoScroll ::: _autoScrollLeft ");
+ if(this._timer){
+ clearTimeout(this._timer);
+ }
+ if(this._autoScrollActive && this._x - this.marginMouse > 0){
+ this._html.scrollLeft -= this.interval;
+ this._node.style.left = (parseInt(this._node.style.left) - this.interval) + "px";
+ this._x -= this.interval;
+ this._timer = setTimeout(dojo.hitch(this, "_autoScrollLeft"),this.recursiveTimer);
+ }
+ },
+
+ stopAutoScroll: function(){
+ // summary:
+ // Stop the autoscroll.
+
+ //console.log("dojox.mdnd.AutoScroll ::: stopAutoScroll ");
+ if(this._timer){
+ clearTimeout(this._timer);
+ }
+ this._autoScrollActive = false;
+ },
+
+ destroy: function(){
+ //console.log("dojox.mdnd.AutoScroll ::: destroy ");
+ dojo.disconnect(this.resizeHandler);
+ }
+});
+
+dojox.mdnd.autoScroll = null;
+(function(){
+ dojox.mdnd.autoScroll = new dojox.mdnd.AutoScroll();
+}());
+
+}
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