Upgrade to ExtJS 4.0.7 - Released 10/19/2011
[extjs.git] / docs / source / Slider.html
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-<html>\r
-<head>\r
-  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />    \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.Slider"></div>/**\r
- * @class Ext.Slider\r
- * @extends Ext.BoxComponent\r
- * Slider which supports vertical or horizontal orientation, keyboard adjustments,\r
- * configurable snapping, axis clicking and animation. Can be added as an item to\r
- * any container. Example usage:\r
-<pre><code>\r
-new Ext.Slider({\r
-    renderTo: Ext.getBody(),\r
-    width: 200,\r
-    value: 50,\r
-    increment: 10,\r
-    minValue: 0,\r
-    maxValue: 100\r
-});\r
-</code></pre>\r
- */\r
-Ext.Slider = Ext.extend(Ext.BoxComponent, {\r
-       <div id="cfg-Ext.Slider-value"></div>/**\r
-        * @cfg {Number} value The value to initialize the slider with. Defaults to minValue.\r
-        */\r
-       <div id="cfg-Ext.Slider-vertical"></div>/**\r
-        * @cfg {Boolean} vertical Orient the Slider vertically rather than horizontally, defaults to false.\r
-        */\r
-    vertical: false,\r
-       <div id="cfg-Ext.Slider-minValue"></div>/**\r
-        * @cfg {Number} minValue The minimum value for the Slider. Defaults to 0.\r
-        */\r
-    minValue: 0,\r
-       <div id="cfg-Ext.Slider-maxValue"></div>/**\r
-        * @cfg {Number} maxValue The maximum value for the Slider. Defaults to 100.\r
-        */\r
-    maxValue: 100,\r
-    <div id="cfg-Ext.Slider-decimalPrecision."></div>/**\r
-     * @cfg {Number/Boolean} decimalPrecision.\r
-     * <p>The number of decimal places to which to round the Slider's value. Defaults to 0.</p>\r
-     * <p>To disable rounding, configure as <tt><b>false</b></tt>.</p>\r
-     */\r
-    decimalPrecision: 0,\r
-       <div id="cfg-Ext.Slider-keyIncrement"></div>/**\r
-        * @cfg {Number} keyIncrement How many units to change the Slider when adjusting with keyboard navigation. Defaults to 1. If the increment config is larger, it will be used instead.\r
-        */\r
-    keyIncrement: 1,\r
-       <div id="cfg-Ext.Slider-increment"></div>/**\r
-        * @cfg {Number} increment How many units to change the slider when adjusting by drag and drop. Use this option to enable 'snapping'.\r
-        */\r
-    increment: 0,\r
-       // private\r
-    clickRange: [5,15],\r
-       <div id="cfg-Ext.Slider-clickToChange"></div>/**\r
-        * @cfg {Boolean} clickToChange Determines whether or not clicking on the Slider axis will change the slider. Defaults to true\r
-        */\r
-    clickToChange : true,\r
-       <div id="cfg-Ext.Slider-animate"></div>/**\r
-        * @cfg {Boolean} animate Turn on or off animation. Defaults to true\r
-        */\r
-    animate: true,\r
-\r
-    <div id="prop-Ext.Slider-dragging"></div>/**\r
-     * True while the thumb is in a drag operation\r
-     * @type boolean\r
-     */\r
-    dragging: false,\r
-\r
-    // private override\r
-    initComponent : function(){\r
-        if(!Ext.isDefined(this.value)){\r
-            this.value = this.minValue;\r
-        }\r
-        Ext.Slider.superclass.initComponent.call(this);\r
-        this.keyIncrement = Math.max(this.increment, this.keyIncrement);\r
-        this.addEvents(\r
-            <div id="event-Ext.Slider-beforechange"></div>/**\r
-             * @event beforechange\r
-             * Fires before the slider value is changed. By returning false from an event handler,\r
-             * you can cancel the event and prevent the slider from changing.\r
-                        * @param {Ext.Slider} slider The slider\r
-                        * @param {Number} newValue The new value which the slider is being changed to.\r
-                        * @param {Number} oldValue The old value which the slider was previously.\r
-             */\r
-                       'beforechange',\r
-                       <div id="event-Ext.Slider-change"></div>/**\r
-                        * @event change\r
-                        * Fires when the slider value is changed.\r
-                        * @param {Ext.Slider} slider The slider\r
-                        * @param {Number} newValue The new value which the slider has been changed to.\r
-                        */\r
-                       'change',\r
-                       <div id="event-Ext.Slider-changecomplete"></div>/**\r
-                        * @event changecomplete\r
-                        * Fires when the slider value is changed by the user and any drag operations have completed.\r
-                        * @param {Ext.Slider} slider The slider\r
-                        * @param {Number} newValue The new value which the slider has been changed to.\r
-                        */\r
-                       'changecomplete',\r
-                       <div id="event-Ext.Slider-dragstart"></div>/**\r
-                        * @event dragstart\r
-             * Fires after a drag operation has started.\r
-                        * @param {Ext.Slider} slider The slider\r
-                        * @param {Ext.EventObject} e The event fired from Ext.dd.DragTracker\r
-                        */\r
-                       'dragstart',\r
-                       <div id="event-Ext.Slider-drag"></div>/**\r
-                        * @event drag\r
-             * Fires continuously during the drag operation while the mouse is moving.\r
-                        * @param {Ext.Slider} slider The slider\r
-                        * @param {Ext.EventObject} e The event fired from Ext.dd.DragTracker\r
-                        */\r
-                       'drag',\r
-                       <div id="event-Ext.Slider-dragend"></div>/**\r
-                        * @event dragend\r
-             * Fires after the drag operation has completed.\r
-                        * @param {Ext.Slider} slider The slider\r
-                        * @param {Ext.EventObject} e The event fired from Ext.dd.DragTracker\r
-                        */\r
-                       'dragend'\r
-               );\r
-\r
-        if(this.vertical){\r
-            Ext.apply(this, Ext.Slider.Vertical);\r
-        }\r
-    },\r
-\r
-       // private override\r
-    onRender : function(){\r
-        this.autoEl = {\r
-            cls: 'x-slider ' + (this.vertical ? 'x-slider-vert' : 'x-slider-horz'),\r
-            cn:{cls:'x-slider-end',cn:{cls:'x-slider-inner',cn:[{cls:'x-slider-thumb'},{tag:'a', cls:'x-slider-focus', href:"#", tabIndex: '-1', hidefocus:'on'}]}}\r
-        };\r
-        Ext.Slider.superclass.onRender.apply(this, arguments);\r
-        this.endEl = this.el.first();\r
-        this.innerEl = this.endEl.first();\r
-        this.thumb = this.innerEl.first();\r
-        this.halfThumb = (this.vertical ? this.thumb.getHeight() : this.thumb.getWidth())/2;\r
-        this.focusEl = this.thumb.next();\r
-        this.initEvents();\r
-    },\r
-\r
-       // private override\r
-    initEvents : function(){\r
-        this.thumb.addClassOnOver('x-slider-thumb-over');\r
-        this.mon(this.el, {\r
-            scope: this,\r
-            mousedown: this.onMouseDown,\r
-            keydown: this.onKeyDown\r
-        });\r
-\r
-        this.focusEl.swallowEvent("click", true);\r
-\r
-        this.tracker = new Ext.dd.DragTracker({\r
-            onBeforeStart: this.onBeforeDragStart.createDelegate(this),\r
-            onStart: this.onDragStart.createDelegate(this),\r
-            onDrag: this.onDrag.createDelegate(this),\r
-            onEnd: this.onDragEnd.createDelegate(this),\r
-            tolerance: 3,\r
-            autoStart: 300\r
-        });\r
-        this.tracker.initEl(this.thumb);\r
-    },\r
-\r
-       // private override\r
-    onMouseDown : function(e){\r
-        if(this.disabled){\r
-            return;\r
-        }\r
-        if(this.clickToChange && e.target != this.thumb.dom){\r
-            var local = this.innerEl.translatePoints(e.getXY());\r
-            this.onClickChange(local);\r
-        }\r
-        this.focus();\r
-    },\r
-\r
-       // private\r
-    onClickChange : function(local){\r
-        if(local.top > this.clickRange[0] && local.top < this.clickRange[1]){\r
-            this.setValue(Ext.util.Format.round(this.reverseValue(local.left), this.decimalPrecision), undefined, true);\r
-        }\r
-    },\r
-\r
-       // private\r
-    onKeyDown : function(e){\r
-        if(this.disabled){e.preventDefault();return;}\r
-        var k = e.getKey();\r
-        switch(k){\r
-            case e.UP:\r
-            case e.RIGHT:\r
-                e.stopEvent();\r
-                if(e.ctrlKey){\r
-                    this.setValue(this.maxValue, undefined, true);\r
-                }else{\r
-                    this.setValue(this.value+this.keyIncrement, undefined, true);\r
-                }\r
-            break;\r
-            case e.DOWN:\r
-            case e.LEFT:\r
-                e.stopEvent();\r
-                if(e.ctrlKey){\r
-                    this.setValue(this.minValue, undefined, true);\r
-                }else{\r
-                    this.setValue(this.value-this.keyIncrement, undefined, true);\r
-                }\r
-            break;\r
-            default:\r
-                e.preventDefault();\r
-        }\r
-    },\r
-\r
-       // private\r
-    doSnap : function(value){\r
-        if(!(this.increment && value)){\r
-            return value;\r
-        }\r
-        var newValue = value, \r
-            inc = this.increment,\r
-            m = value % inc;\r
-        if(m != 0){\r
-            newValue -= m;\r
-            if(m * 2 > inc){\r
-                newValue += inc;\r
-            }else if(m * 2 < -inc){\r
-                newValue -= inc;\r
-            }\r
-        }\r
-        return newValue.constrain(this.minValue,  this.maxValue);\r
-    },\r
-\r
-       // private\r
-    afterRender : function(){\r
-        Ext.Slider.superclass.afterRender.apply(this, arguments);\r
-        if(this.value !== undefined){\r
-            var v = this.normalizeValue(this.value);\r
-            if(v !== this.value){\r
-                delete this.value;\r
-                this.setValue(v, false);\r
-            }else{\r
-                this.moveThumb(this.translateValue(v), false);\r
-            }\r
-        }\r
-    },\r
-\r
-       // private\r
-    getRatio : function(){\r
-        var w = this.innerEl.getWidth(),\r
-            v = this.maxValue - this.minValue;\r
-        return v == 0 ? w : (w/v);\r
-    },\r
-\r
-       // private\r
-    normalizeValue : function(v){\r
-        v = this.doSnap(v);\r
-        v = Ext.util.Format.round(v, this.decimalPrecision);\r
-        v = v.constrain(this.minValue, this.maxValue);\r
-        return v;\r
-    },\r
-\r
-       <div id="method-Ext.Slider-setValue"></div>/**\r
-        * Programmatically sets the value of the Slider. Ensures that the value is constrained within\r
-        * the minValue and maxValue.\r
-        * @param {Number} value The value to set the slider to. (This will be constrained within minValue and maxValue)\r
-        * @param {Boolean} animate Turn on or off animation, defaults to true\r
-        */\r
-    setValue : function(v, animate, changeComplete){\r
-        v = this.normalizeValue(v);\r
-        if(v !== this.value && this.fireEvent('beforechange', this, v, this.value) !== false){\r
-            this.value = v;\r
-            this.moveThumb(this.translateValue(v), animate !== false);\r
-            this.fireEvent('change', this, v);\r
-            if(changeComplete){\r
-                this.fireEvent('changecomplete', this, v);\r
-            }\r
-        }\r
-    },\r
-\r
-       // private\r
-    translateValue : function(v){\r
-        var ratio = this.getRatio();\r
-        return (v * ratio) - (this.minValue * ratio) - this.halfThumb;\r
-    },\r
-\r
-       reverseValue : function(pos){\r
-        var ratio = this.getRatio();\r
-        return (pos + this.halfThumb + (this.minValue * ratio)) / ratio;\r
-    },\r
-\r
-       // private\r
-    moveThumb: function(v, animate){\r
-        if(!animate || this.animate === false){\r
-            this.thumb.setLeft(v);\r
-        }else{\r
-            this.thumb.shift({left: v, stopFx: true, duration:.35});\r
-        }\r
-    },\r
-\r
-       // private\r
-    focus : function(){\r
-        this.focusEl.focus(10);\r
-    },\r
-\r
-       // private\r
-    onBeforeDragStart : function(e){\r
-        return !this.disabled;\r
-    },\r
-\r
-       // private\r
-    onDragStart: function(e){\r
-        this.thumb.addClass('x-slider-thumb-drag');\r
-        this.dragging = true;\r
-        this.dragStartValue = this.value;\r
-        this.fireEvent('dragstart', this, e);\r
-    },\r
-\r
-       // private\r
-    onDrag: function(e){\r
-        var pos = this.innerEl.translatePoints(this.tracker.getXY());\r
-        this.setValue(Ext.util.Format.round(this.reverseValue(pos.left), this.decimalPrecision), false);\r
-        this.fireEvent('drag', this, e);\r
-    },\r
-\r
-       // private\r
-    onDragEnd: function(e){\r
-        this.thumb.removeClass('x-slider-thumb-drag');\r
-        this.dragging = false;\r
-        this.fireEvent('dragend', this, e);\r
-        if(this.dragStartValue != this.value){\r
-            this.fireEvent('changecomplete', this, this.value);\r
-        }\r
-    },\r
-\r
-       // private\r
-    onResize : function(w, h){\r
-        this.innerEl.setWidth(w - (this.el.getPadding('l') + this.endEl.getPadding('r')));\r
-        this.syncThumb();\r
-    },\r
-    \r
-    //private\r
-    onDisable: function(){\r
-        Ext.Slider.superclass.onDisable.call(this);\r
-        this.thumb.addClass(this.disabledClass);\r
-        if(Ext.isIE){\r
-            //IE breaks when using overflow visible and opacity other than 1.\r
-            //Create a place holder for the thumb and display it.\r
-            var xy = this.thumb.getXY();\r
-            this.thumb.hide();\r
-            this.innerEl.addClass(this.disabledClass).dom.disabled = true;\r
-            if (!this.thumbHolder){\r
-                this.thumbHolder = this.endEl.createChild({cls: 'x-slider-thumb ' + this.disabledClass});    \r
-            }\r
-            this.thumbHolder.show().setXY(xy);\r
-        }\r
-    },\r
-    \r
-    //private\r
-    onEnable: function(){\r
-        Ext.Slider.superclass.onEnable.call(this);\r
-        this.thumb.removeClass(this.disabledClass);\r
-        if(Ext.isIE){\r
-            this.innerEl.removeClass(this.disabledClass).dom.disabled = false;\r
-            if(this.thumbHolder){\r
-                this.thumbHolder.hide();\r
-            }\r
-            this.thumb.show();\r
-            this.syncThumb();\r
-        }\r
-    },\r
-    \r
-    <div id="method-Ext.Slider-syncThumb"></div>/**\r
-     * Synchronizes the thumb position to the proper proportion of the total component width based\r
-     * on the current slider {@link #value}.  This will be called automatically when the Slider\r
-     * is resized by a layout, but if it is rendered auto width, this method can be called from\r
-     * another resize handler to sync the Slider if necessary.\r
-     */\r
-    syncThumb : function(){\r
-        if(this.rendered){\r
-            this.moveThumb(this.translateValue(this.value));\r
-        }\r
-    },\r
-\r
-       <div id="method-Ext.Slider-getValue"></div>/**\r
-        * Returns the current value of the slider\r
-        * @return {Number} The current value of the slider\r
-        */\r
-    getValue : function(){\r
-        return this.value;\r
-    },\r
-    \r
-    // private\r
-    beforeDestroy : function(){\r
-        Ext.destroyMembers(this, 'endEl', 'innerEl', 'thumb', 'halfThumb', 'focusEl', 'tracker', 'thumbHolder');\r
-        Ext.Slider.superclass.beforeDestroy.call(this);\r
-    }\r
-});\r
-Ext.reg('slider', Ext.Slider);\r
-\r
-// private class to support vertical sliders\r
-Ext.Slider.Vertical = {\r
-    onResize : function(w, h){\r
-        this.innerEl.setHeight(h - (this.el.getPadding('t') + this.endEl.getPadding('b')));\r
-        this.syncThumb();\r
-    },\r
-\r
-    getRatio : function(){\r
-        var h = this.innerEl.getHeight(),\r
-            v = this.maxValue - this.minValue;\r
-        return h/v;\r
-    },\r
-\r
-    moveThumb: function(v, animate){\r
-        if(!animate || this.animate === false){\r
-            this.thumb.setBottom(v);\r
-        }else{\r
-            this.thumb.shift({bottom: v, stopFx: true, duration:.35});\r
-        }\r
-    },\r
-\r
-    onDrag: function(e){\r
-        var pos = this.innerEl.translatePoints(this.tracker.getXY()),\r
-            bottom = this.innerEl.getHeight()-pos.top;\r
-        this.setValue(this.minValue + Ext.util.Format.round(bottom/this.getRatio(), this.decimalPrecision), false);\r
-        this.fireEvent('drag', this, e);\r
-    },\r
-\r
-    onClickChange : function(local){\r
-        if(local.left > this.clickRange[0] && local.left < this.clickRange[1]){\r
-            var bottom = this.innerEl.getHeight() - local.top;\r
-            this.setValue(this.minValue + Ext.util.Format.round(bottom/this.getRatio(), this.decimalPrecision), undefined, true);\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>
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+</head>
+<body onload="prettyPrint(); highlight();">
+  <pre class="prettyprint lang-js"><span id='Ext-layout-component-field-Slider'>/**
+</span> * @class Ext.layout.component.field.Slider
+ * @extends Ext.layout.component.field.Field
+ * @private
+ */
+
+Ext.define('Ext.layout.component.field.Slider', {
+
+    /* Begin Definitions */
+
+    alias: ['layout.sliderfield'],
+
+    extend: 'Ext.layout.component.field.Field',
+
+    /* End Definitions */
+
+    type: 'sliderfield',
+
+    sizeBodyContents: function(width, height) {
+        var owner = this.owner,
+            thumbs = owner.thumbs,
+            length = thumbs.length,
+            inputEl = owner.inputEl,
+            innerEl = owner.innerEl,
+            endEl = owner.endEl,
+            i = 0;
+
+        /*
+         * If we happen to be animating during a resize, the position of the thumb will likely be off
+         * when the animation stops. As such, just stop any animations before syncing the thumbs.
+         */
+        for(; i &lt; length; ++i) {
+            thumbs[i].el.stopAnimation();
+        }
+        
+        if (owner.vertical) {
+            inputEl.setHeight(height);
+            innerEl.setHeight(Ext.isNumber(height) ? height - inputEl.getPadding('t') - endEl.getPadding('b') : height);
+        }
+        else {
+            inputEl.setWidth(width);
+            innerEl.setWidth(Ext.isNumber(width) ? width - inputEl.getPadding('l') - endEl.getPadding('r') : width);
+        }
+        owner.syncThumbs();
+    }
+});
+</pre>
+</body>
+</html>