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<pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
+ * Ext JS Library 3.3.1
+ * Copyright(c) 2006-2010 Sencha Inc.
+ * licensing@sencha.com
+ * http://www.sencha.com/license
*/
-<div id="cls-Ext.dd.ScrollManager"></div>/**\r
- * @class Ext.dd.ScrollManager\r
- * <p>Provides automatic scrolling of overflow regions in the page during drag operations.</p>\r
- * <p>The ScrollManager configs will be used as the defaults for any scroll container registered with it,\r
- * but you can also override most of the configs per scroll container by adding a \r
- * <tt>ddScrollConfig</tt> object to the target element that contains these properties: {@link #hthresh},\r
- * {@link #vthresh}, {@link #increment} and {@link #frequency}. Example usage:\r
- * <pre><code>\r
-var el = Ext.get('scroll-ct');\r
-el.ddScrollConfig = {\r
- vthresh: 50,\r
- hthresh: -1,\r
- frequency: 100,\r
- increment: 200\r
-};\r
-Ext.dd.ScrollManager.register(el);\r
-</code></pre>\r
- * <b>Note: This class uses "Point Mode" and is untested in "Intersect Mode".</b>\r
- * @singleton\r
- */\r
-Ext.dd.ScrollManager = function(){\r
- var ddm = Ext.dd.DragDropMgr;\r
- var els = {};\r
- var dragEl = null;\r
- var proc = {};\r
- \r
- var onStop = function(e){\r
- dragEl = null;\r
- clearProc();\r
- };\r
- \r
- var triggerRefresh = function(){\r
- if(ddm.dragCurrent){\r
- ddm.refreshCache(ddm.dragCurrent.groups);\r
- }\r
- };\r
- \r
- var doScroll = function(){\r
- if(ddm.dragCurrent){\r
- var dds = Ext.dd.ScrollManager;\r
- var inc = proc.el.ddScrollConfig ?\r
- proc.el.ddScrollConfig.increment : dds.increment;\r
- if(!dds.animate){\r
- if(proc.el.scroll(proc.dir, inc)){\r
- triggerRefresh();\r
- }\r
- }else{\r
- proc.el.scroll(proc.dir, inc, true, dds.animDuration, triggerRefresh);\r
- }\r
- }\r
- };\r
- \r
- var clearProc = function(){\r
- if(proc.id){\r
- clearInterval(proc.id);\r
- }\r
- proc.id = 0;\r
- proc.el = null;\r
- proc.dir = "";\r
- };\r
- \r
- var startProc = function(el, dir){\r
- clearProc();\r
- proc.el = el;\r
- proc.dir = dir;\r
- var freq = (el.ddScrollConfig && el.ddScrollConfig.frequency) ? \r
- el.ddScrollConfig.frequency : Ext.dd.ScrollManager.frequency;\r
- proc.id = setInterval(doScroll, freq);\r
- };\r
- \r
- var onFire = function(e, isDrop){\r
- if(isDrop || !ddm.dragCurrent){ return; }\r
- var dds = Ext.dd.ScrollManager;\r
- if(!dragEl || dragEl != ddm.dragCurrent){\r
- dragEl = ddm.dragCurrent;\r
- // refresh regions on drag start\r
- dds.refreshCache();\r
- }\r
- \r
- var xy = Ext.lib.Event.getXY(e);\r
- var pt = new Ext.lib.Point(xy[0], xy[1]);\r
- for(var id in els){\r
- var el = els[id], r = el._region;\r
- var c = el.ddScrollConfig ? el.ddScrollConfig : dds;\r
- if(r && r.contains(pt) && el.isScrollable()){\r
- if(r.bottom - pt.y <= c.vthresh){\r
- if(proc.el != el){\r
- startProc(el, "down");\r
- }\r
- return;\r
- }else if(r.right - pt.x <= c.hthresh){\r
- if(proc.el != el){\r
- startProc(el, "left");\r
- }\r
- return;\r
- }else if(pt.y - r.top <= c.vthresh){\r
- if(proc.el != el){\r
- startProc(el, "up");\r
- }\r
- return;\r
- }else if(pt.x - r.left <= c.hthresh){\r
- if(proc.el != el){\r
- startProc(el, "right");\r
- }\r
- return;\r
- }\r
- }\r
- }\r
- clearProc();\r
- };\r
- \r
- ddm.fireEvents = ddm.fireEvents.createSequence(onFire, ddm);\r
- ddm.stopDrag = ddm.stopDrag.createSequence(onStop, ddm);\r
- \r
- return {\r
- <div id="method-Ext.dd.ScrollManager-register"></div>/**\r
- * Registers new overflow element(s) to auto scroll\r
- * @param {Mixed/Array} el The id of or the element to be scrolled or an array of either\r
- */\r
- register : function(el){\r
- if(Ext.isArray(el)){\r
- for(var i = 0, len = el.length; i < len; i++) {\r
- this.register(el[i]);\r
- }\r
- }else{\r
- el = Ext.get(el);\r
- els[el.id] = el;\r
- }\r
- },\r
- \r
- <div id="method-Ext.dd.ScrollManager-unregister"></div>/**\r
- * Unregisters overflow element(s) so they are no longer scrolled\r
- * @param {Mixed/Array} el The id of or the element to be removed or an array of either\r
- */\r
- unregister : function(el){\r
- if(Ext.isArray(el)){\r
- for(var i = 0, len = el.length; i < len; i++) {\r
- this.unregister(el[i]);\r
- }\r
- }else{\r
- el = Ext.get(el);\r
- delete els[el.id];\r
- }\r
- },\r
- \r
- <div id="prop-Ext.dd.ScrollManager-vthresh"></div>/**\r
- * The number of pixels from the top or bottom edge of a container the pointer needs to be to\r
- * trigger scrolling (defaults to 25)\r
- * @type Number\r
- */\r
- vthresh : 25,\r
- <div id="prop-Ext.dd.ScrollManager-hthresh"></div>/**\r
- * The number of pixels from the right or left edge of a container the pointer needs to be to\r
- * trigger scrolling (defaults to 25)\r
- * @type Number\r
- */\r
- hthresh : 25,\r
-\r
- <div id="prop-Ext.dd.ScrollManager-increment"></div>/**\r
- * The number of pixels to scroll in each scroll increment (defaults to 50)\r
- * @type Number\r
- */\r
- increment : 100,\r
- \r
- <div id="prop-Ext.dd.ScrollManager-frequency"></div>/**\r
- * The frequency of scrolls in milliseconds (defaults to 500)\r
- * @type Number\r
- */\r
- frequency : 500,\r
- \r
- <div id="prop-Ext.dd.ScrollManager-animate"></div>/**\r
- * True to animate the scroll (defaults to true)\r
- * @type Boolean\r
- */\r
- animate: true,\r
- \r
- <div id="prop-Ext.dd.ScrollManager-animDuration"></div>/**\r
- * The animation duration in seconds - \r
- * MUST BE less than Ext.dd.ScrollManager.frequency! (defaults to .4)\r
- * @type Number\r
- */\r
- animDuration: .4,\r
- \r
- <div id="method-Ext.dd.ScrollManager-refreshCache"></div>/**\r
- * Manually trigger a cache refresh.\r
- */\r
- refreshCache : function(){\r
- for(var id in els){\r
- if(typeof els[id] == 'object'){ // for people extending the object prototype\r
- els[id]._region = els[id].getRegion();\r
- }\r
- }\r
- }\r
- };\r
-}();</pre>
+<div id="cls-Ext.dd.ScrollManager"></div>/**
+ * @class Ext.dd.ScrollManager
+ * <p>Provides automatic scrolling of overflow regions in the page during drag operations.</p>
+ * <p>The ScrollManager configs will be used as the defaults for any scroll container registered with it,
+ * but you can also override most of the configs per scroll container by adding a
+ * <tt>ddScrollConfig</tt> object to the target element that contains these properties: {@link #hthresh},
+ * {@link #vthresh}, {@link #increment} and {@link #frequency}. Example usage:
+ * <pre><code>
+var el = Ext.get('scroll-ct');
+el.ddScrollConfig = {
+ vthresh: 50,
+ hthresh: -1,
+ frequency: 100,
+ increment: 200
+};
+Ext.dd.ScrollManager.register(el);
+</code></pre>
+ * <b>Note: This class uses "Point Mode" and is untested in "Intersect Mode".</b>
+ * @singleton
+ */
+Ext.dd.ScrollManager = function(){
+ var ddm = Ext.dd.DragDropMgr;
+ var els = {};
+ var dragEl = null;
+ var proc = {};
+
+ var onStop = function(e){
+ dragEl = null;
+ clearProc();
+ };
+
+ var triggerRefresh = function(){
+ if(ddm.dragCurrent){
+ ddm.refreshCache(ddm.dragCurrent.groups);
+ }
+ };
+
+ var doScroll = function(){
+ if(ddm.dragCurrent){
+ var dds = Ext.dd.ScrollManager;
+ var inc = proc.el.ddScrollConfig ?
+ proc.el.ddScrollConfig.increment : dds.increment;
+ if(!dds.animate){
+ if(proc.el.scroll(proc.dir, inc)){
+ triggerRefresh();
+ }
+ }else{
+ proc.el.scroll(proc.dir, inc, true, dds.animDuration, triggerRefresh);
+ }
+ }
+ };
+
+ var clearProc = function(){
+ if(proc.id){
+ clearInterval(proc.id);
+ }
+ proc.id = 0;
+ proc.el = null;
+ proc.dir = "";
+ };
+
+ var startProc = function(el, dir){
+ clearProc();
+ proc.el = el;
+ proc.dir = dir;
+ var group = el.ddScrollConfig ? el.ddScrollConfig.ddGroup : undefined,
+ freq = (el.ddScrollConfig && el.ddScrollConfig.frequency)
+ ? el.ddScrollConfig.frequency
+ : Ext.dd.ScrollManager.frequency;
+
+ if (group === undefined || ddm.dragCurrent.ddGroup == group) {
+ proc.id = setInterval(doScroll, freq);
+ }
+ };
+
+ var onFire = function(e, isDrop){
+ if(isDrop || !ddm.dragCurrent){ return; }
+ var dds = Ext.dd.ScrollManager;
+ if(!dragEl || dragEl != ddm.dragCurrent){
+ dragEl = ddm.dragCurrent;
+ // refresh regions on drag start
+ dds.refreshCache();
+ }
+
+ var xy = Ext.lib.Event.getXY(e);
+ var pt = new Ext.lib.Point(xy[0], xy[1]);
+ for(var id in els){
+ var el = els[id], r = el._region;
+ var c = el.ddScrollConfig ? el.ddScrollConfig : dds;
+ if(r && r.contains(pt) && el.isScrollable()){
+ if(r.bottom - pt.y <= c.vthresh){
+ if(proc.el != el){
+ startProc(el, "down");
+ }
+ return;
+ }else if(r.right - pt.x <= c.hthresh){
+ if(proc.el != el){
+ startProc(el, "left");
+ }
+ return;
+ }else if(pt.y - r.top <= c.vthresh){
+ if(proc.el != el){
+ startProc(el, "up");
+ }
+ return;
+ }else if(pt.x - r.left <= c.hthresh){
+ if(proc.el != el){
+ startProc(el, "right");
+ }
+ return;
+ }
+ }
+ }
+ clearProc();
+ };
+
+ ddm.fireEvents = ddm.fireEvents.createSequence(onFire, ddm);
+ ddm.stopDrag = ddm.stopDrag.createSequence(onStop, ddm);
+
+ return {
+ <div id="method-Ext.dd.ScrollManager-register"></div>/**
+ * Registers new overflow element(s) to auto scroll
+ * @param {Mixed/Array} el The id of or the element to be scrolled or an array of either
+ */
+ register : function(el){
+ if(Ext.isArray(el)){
+ for(var i = 0, len = el.length; i < len; i++) {
+ this.register(el[i]);
+ }
+ }else{
+ el = Ext.get(el);
+ els[el.id] = el;
+ }
+ },
+
+ <div id="method-Ext.dd.ScrollManager-unregister"></div>/**
+ * Unregisters overflow element(s) so they are no longer scrolled
+ * @param {Mixed/Array} el The id of or the element to be removed or an array of either
+ */
+ unregister : function(el){
+ if(Ext.isArray(el)){
+ for(var i = 0, len = el.length; i < len; i++) {
+ this.unregister(el[i]);
+ }
+ }else{
+ el = Ext.get(el);
+ delete els[el.id];
+ }
+ },
+
+ <div id="prop-Ext.dd.ScrollManager-vthresh"></div>/**
+ * The number of pixels from the top or bottom edge of a container the pointer needs to be to
+ * trigger scrolling (defaults to 25)
+ * @type Number
+ */
+ vthresh : 25,
+ <div id="prop-Ext.dd.ScrollManager-hthresh"></div>/**
+ * The number of pixels from the right or left edge of a container the pointer needs to be to
+ * trigger scrolling (defaults to 25)
+ * @type Number
+ */
+ hthresh : 25,
+
+ <div id="prop-Ext.dd.ScrollManager-increment"></div>/**
+ * The number of pixels to scroll in each scroll increment (defaults to 100)
+ * @type Number
+ */
+ increment : 100,
+
+ <div id="prop-Ext.dd.ScrollManager-frequency"></div>/**
+ * The frequency of scrolls in milliseconds (defaults to 500)
+ * @type Number
+ */
+ frequency : 500,
+
+ <div id="prop-Ext.dd.ScrollManager-animate"></div>/**
+ * True to animate the scroll (defaults to true)
+ * @type Boolean
+ */
+ animate: true,
+
+ <div id="prop-Ext.dd.ScrollManager-animDuration"></div>/**
+ * The animation duration in seconds -
+ * MUST BE less than Ext.dd.ScrollManager.frequency! (defaults to .4)
+ * @type Number
+ */
+ animDuration: .4,
+
+ <div id="prop-Ext.dd.ScrollManager-ddGroup"></div>/**
+ * The named drag drop {@link Ext.dd.DragSource#ddGroup group} to which this container belongs (defaults to undefined).
+ * If a ddGroup is specified, then container scrolling will only occur when a dragged object is in the same ddGroup.
+ * @type String
+ */
+ ddGroup: undefined,
+
+ <div id="method-Ext.dd.ScrollManager-refreshCache"></div>/**
+ * Manually trigger a cache refresh.
+ */
+ refreshCache : function(){
+ for(var id in els){
+ if(typeof els[id] == 'object'){ // for people extending the object prototype
+ els[id]._region = els[id].getRegion();
+ }
+ }
+ }
+ };
+}();</pre>
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