-<html>\r
-<head>\r
- <title>The source code</title>\r
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
-</head>\r
-<body onload="prettyPrint();">\r
- <pre class="prettyprint lang-js"><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> \r
-</body>\r
-</html>
\ No newline at end of file
+<!DOCTYPE html>
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>The source code</title>
+ <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
+ <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
+ <style type="text/css">
+ .highlight { display: block; background-color: #ddd; }
+ </style>
+ <script type="text/javascript">
+ function highlight() {
+ document.getElementById(location.hash.replace(/#/, "")).className = "highlight";
+ }
+ </script>
+</head>
+<body onload="prettyPrint(); highlight();">
+ <pre class="prettyprint lang-js"><span id='Ext-dd-ScrollManager'>/**
+</span> * @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>
+ * Note: This class is designed to be used in "Point Mode
+ * @singleton
+ */
+Ext.define('Ext.dd.ScrollManager', {
+ singleton: true,
+ requires: [
+ 'Ext.dd.DragDropManager'
+ ],
+
+ constructor: function() {
+ var ddm = Ext.dd.DragDropManager;
+ ddm.fireEvents = Ext.Function.createSequence(ddm.fireEvents, this.onFire, this);
+ ddm.stopDrag = Ext.Function.createSequence(ddm.stopDrag, this.onStop, this);
+ this.doScroll = Ext.Function.bind(this.doScroll, this);
+ this.ddmInstance = ddm;
+ this.els = {};
+ this.dragEl = null;
+ this.proc = {};
+ },
+
+ onStop: function(e){
+ var sm = Ext.dd.ScrollManager;
+ sm.dragEl = null;
+ sm.clearProc();
+ },
+
+ triggerRefresh: function() {
+ if (this.ddmInstance.dragCurrent) {
+ this.ddmInstance.refreshCache(this.ddmInstance.dragCurrent.groups);
+ }
+ },
+
+ doScroll: function() {
+ if (this.ddmInstance.dragCurrent) {
+ var proc = this.proc,
+ procEl = proc.el,
+ ddScrollConfig = proc.el.ddScrollConfig,
+ inc = ddScrollConfig ? ddScrollConfig.increment : this.increment;
+
+ if (!this.animate) {
+ if (procEl.scroll(proc.dir, inc)) {
+ this.triggerRefresh();
+ }
+ } else {
+ procEl.scroll(proc.dir, inc, true, this.animDuration, this.triggerRefresh);
+ }
+ }
+ },
+
+ clearProc: function() {
+ var proc = this.proc;
+ if (proc.id) {
+ clearInterval(proc.id);
+ }
+ proc.id = 0;
+ proc.el = null;
+ proc.dir = "";
+ },
+
+ startProc: function(el, dir) {
+ this.clearProc();
+ this.proc.el = el;
+ this.proc.dir = dir;
+ var group = el.ddScrollConfig ? el.ddScrollConfig.ddGroup : undefined,
+ freq = (el.ddScrollConfig && el.ddScrollConfig.frequency)
+ ? el.ddScrollConfig.frequency
+ : this.frequency;
+
+ if (group === undefined || this.ddmInstance.dragCurrent.ddGroup == group) {
+ this.proc.id = setInterval(this.doScroll, freq);
+ }
+ },
+
+ onFire: function(e, isDrop) {
+ if (isDrop || !this.ddmInstance.dragCurrent) {
+ return;
+ }
+ if (!this.dragEl || this.dragEl != this.ddmInstance.dragCurrent) {
+ this.dragEl = this.ddmInstance.dragCurrent;
+ // refresh regions on drag start
+ this.refreshCache();
+ }
+
+ var xy = e.getXY(),
+ pt = e.getPoint(),
+ proc = this.proc,
+ els = this.els;
+
+ for (var id in els) {
+ var el = els[id], r = el._region;
+ var c = el.ddScrollConfig ? el.ddScrollConfig : this;
+ if (r && r.contains(pt) && el.isScrollable()) {
+ if (r.bottom - pt.y <= c.vthresh) {
+ if(proc.el != el){
+ this.startProc(el, "down");
+ }
+ return;
+ }else if (r.right - pt.x <= c.hthresh) {
+ if (proc.el != el) {
+ this.startProc(el, "left");
+ }
+ return;
+ } else if(pt.y - r.top <= c.vthresh) {
+ if (proc.el != el) {
+ this.startProc(el, "up");
+ }
+ return;
+ } else if(pt.x - r.left <= c.hthresh) {
+ if (proc.el != el) {
+ this.startProc(el, "right");
+ }
+ return;
+ }
+ }
+ }
+ this.clearProc();
+ },
+
+<span id='Ext-dd-ScrollManager-method-register'> /**
+</span> * Registers new overflow element(s) to auto scroll
+ * @param {String/HTMLElement/Ext.Element/String[]/HTMLElement[]/Ext.Element[]} 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);
+ this.els[el.id] = el;
+ }
+ },
+
+<span id='Ext-dd-ScrollManager-method-unregister'> /**
+</span> * Unregisters overflow element(s) so they are no longer scrolled
+ * @param {String/HTMLElement/Ext.Element/String[]/HTMLElement[]/Ext.Element[]} 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 this.els[el.id];
+ }
+ },
+
+<span id='Ext-dd-ScrollManager-property-vthresh'> /**
+</span> * The number of pixels from the top or bottom edge of a container the pointer needs to be to
+ * trigger scrolling
+ * @type Number
+ */
+ vthresh : 25,
+<span id='Ext-dd-ScrollManager-property-hthresh'> /**
+</span> * The number of pixels from the right or left edge of a container the pointer needs to be to
+ * trigger scrolling
+ * @type Number
+ */
+ hthresh : 25,
+
+<span id='Ext-dd-ScrollManager-property-increment'> /**
+</span> * The number of pixels to scroll in each scroll increment
+ * @type Number
+ */
+ increment : 100,
+
+<span id='Ext-dd-ScrollManager-property-frequency'> /**
+</span> * The frequency of scrolls in milliseconds
+ * @type Number
+ */
+ frequency : 500,
+
+<span id='Ext-dd-ScrollManager-property-animate'> /**
+</span> * True to animate the scroll
+ * @type Boolean
+ */
+ animate: true,
+
+<span id='Ext-dd-ScrollManager-property-animDuration'> /**
+</span> * The animation duration in seconds - MUST BE less than Ext.dd.ScrollManager.frequency!
+ * @type Number
+ */
+ animDuration: 0.4,
+
+<span id='Ext-dd-ScrollManager-property-ddGroup'> /**
+</span> * The named drag drop {@link Ext.dd.DragSource#ddGroup group} to which this container belongs.
+ * If a ddGroup is specified, then container scrolling will only occur when a dragged object is in the same ddGroup.
+ * @type String
+ */
+ ddGroup: undefined,
+
+<span id='Ext-dd-ScrollManager-method-refreshCache'> /**
+</span> * Manually trigger a cache refresh.
+ */
+ refreshCache : function(){
+ var els = this.els,
+ id;
+ for (id in els) {
+ if(typeof els[id] == 'object'){ // for people extending the object prototype
+ els[id]._region = els[id].getRegion();
+ }
+ }
+ }
+});
+</pre>
+</body>
+</html>
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