--- /dev/null
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+<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
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+<body onload="prettyPrint();">\r
+ <pre class="prettyprint lang-js"><div id="cls-Ext.util.ClickRepeater"></div>/**
+ @class Ext.util.ClickRepeater
+ @extends Ext.util.Observable
+
+ A wrapper class which can be applied to any element. Fires a "click" event while the
+ mouse is pressed. The interval between firings may be specified in the config but
+ defaults to 20 milliseconds.
+
+ Optionally, a CSS class may be applied to the element during the time it is pressed.
+
+ @cfg {Mixed} el The element to act as a button.
+ @cfg {Number} delay The initial delay before the repeating event begins firing.
+ Similar to an autorepeat key delay.
+ @cfg {Number} interval The interval between firings of the "click" event. Default 20 ms.
+ @cfg {String} pressClass A CSS class name to be applied to the element while pressed.
+ @cfg {Boolean} accelerate True if autorepeating should start slowly and accelerate.
+ "interval" and "delay" are ignored.
+ @cfg {Boolean} preventDefault True to prevent the default click event
+ @cfg {Boolean} stopDefault True to stop the default click event
+
+ @history
+ 2007-02-02 jvs Original code contributed by Nige "Animal" White
+ 2007-02-02 jvs Renamed to ClickRepeater
+ 2007-02-03 jvs Modifications for FF Mac and Safari
+
+ @constructor
+ @param {Mixed} el The element to listen on
+ @param {Object} config
+ */
+Ext.util.ClickRepeater = function(el, config)
+{
+ this.el = Ext.get(el);
+ this.el.unselectable();
+
+ Ext.apply(this, config);
+
+ this.addEvents(
+ /**
+ * @event mousedown
+ * Fires when the mouse button is depressed.
+ * @param {Ext.util.ClickRepeater} this
+ */
+ "mousedown",
+ /**
+ * @event click
+ * Fires on a specified interval during the time the element is pressed.
+ * @param {Ext.util.ClickRepeater} this
+ */
+ "click",
+ /**
+ * @event mouseup
+ * Fires when the mouse key is released.
+ * @param {Ext.util.ClickRepeater} this
+ */
+ "mouseup"
+ );
+
+ if(!this.disabled){
+ this.disabled = true;
+ this.enable();
+ }
+
+ // allow inline handler
+ if(this.handler){
+ this.on("click", this.handler, this.scope || this);
+ }
+
+ Ext.util.ClickRepeater.superclass.constructor.call(this);
+};
+
+Ext.extend(Ext.util.ClickRepeater, Ext.util.Observable, {
+ interval : 20,
+ delay: 250,
+ preventDefault : true,
+ stopDefault : false,
+ timer : 0,
+
+ /**
+ * Enables the repeater and allows events to fire.
+ */
+ enable: function(){
+ if(this.disabled){
+ this.el.on('mousedown', this.handleMouseDown, this);
+ if(this.preventDefault || this.stopDefault){
+ this.el.on('click', this.eventOptions, this);
+ }
+ }
+ this.disabled = false;
+ },
+
+ /**
+ * Disables the repeater and stops events from firing.
+ */
+ disable: function(/* private */ force){
+ if(force || !this.disabled){
+ clearTimeout(this.timer);
+ if(this.pressClass){
+ this.el.removeClass(this.pressClass);
+ }
+ Ext.getDoc().un('mouseup', this.handleMouseUp, this);
+ this.el.removeAllListeners();
+ }
+ this.disabled = true;
+ },
+
+ /**
+ * Convenience function for setting disabled/enabled by boolean.
+ * @param {Boolean} disabled
+ */
+ setDisabled: function(disabled){
+ this[disabled ? 'disable' : 'enable']();
+ },
+
+ eventOptions: function(e){
+ if(this.preventDefault){
+ e.preventDefault();
+ }
+ if(this.stopDefault){
+ e.stopEvent();
+ }
+ },
+
+ // private
+ destroy : function() {
+ this.disable(true);
+ Ext.destroy(this.el);
+ this.purgeListeners();
+ },
+
+ // private
+ handleMouseDown : function(){
+ clearTimeout(this.timer);
+ this.el.blur();
+ if(this.pressClass){
+ this.el.addClass(this.pressClass);
+ }
+ this.mousedownTime = new Date();
+
+ Ext.getDoc().on("mouseup", this.handleMouseUp, this);
+ this.el.on("mouseout", this.handleMouseOut, this);
+
+ this.fireEvent("mousedown", this);
+ this.fireEvent("click", this);
+
+// Do not honor delay or interval if acceleration wanted.
+ if (this.accelerate) {
+ this.delay = 400;
+ }
+ this.timer = this.click.defer(this.delay || this.interval, this);
+ },
+
+ // private
+ click : function(){
+ this.fireEvent("click", this);
+ this.timer = this.click.defer(this.accelerate ?
+ this.easeOutExpo(this.mousedownTime.getElapsed(),
+ 400,
+ -390,
+ 12000) :
+ this.interval, this);
+ },
+
+ easeOutExpo : function (t, b, c, d) {
+ return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
+ },
+
+ // private
+ handleMouseOut : function(){
+ clearTimeout(this.timer);
+ if(this.pressClass){
+ this.el.removeClass(this.pressClass);
+ }
+ this.el.on("mouseover", this.handleMouseReturn, this);
+ },
+
+ // private
+ handleMouseReturn : function(){
+ this.el.un("mouseover", this.handleMouseReturn, this);
+ if(this.pressClass){
+ this.el.addClass(this.pressClass);
+ }
+ this.click();
+ },
+
+ // private
+ handleMouseUp : function(){
+ clearTimeout(this.timer);
+ this.el.un("mouseover", this.handleMouseReturn, this);
+ this.el.un("mouseout", this.handleMouseOut, this);
+ Ext.getDoc().un("mouseup", this.handleMouseUp, this);
+ this.el.removeClass(this.pressClass);
+ this.fireEvent("mouseup", this);
+ }
+});</pre> \r
+</body>\r
+</html>
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