Upgrade to ExtJS 4.0.0 - Released 04/26/2011

[extjs.git] / src / button / Split.js

diff --git a/src/button/Split.js b/src/button/Split.js
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+/**
+ * @class Ext.button.Split
+ * @extends Ext.button.Button
+ * A split button that provides a built-in dropdown arrow that can fire an event separately from the default
+ * click event of the button.  Typically this would be used to display a dropdown menu that provides additional
+ * options to the primary button action, but any custom handler can provide the arrowclick implementation.  
+ * {@img Ext.button.Split/Ext.button.Split.png Ext.button.Split component}
+ * Example usage:
+ * <pre><code>
+// display a dropdown menu:
+    Ext.create('Ext.button.Split', {
+        renderTo: 'button-ct', // the container id
+        text: 'Options',
+        handler: optionsHandler, // handle a click on the button itself
+        menu: new Ext.menu.Menu({
+        items: [
+                // these items will render as dropdown menu items when the arrow is clicked:
+                {text: 'Item 1', handler: item1Handler},
+                {text: 'Item 2', handler: item2Handler}
+        ]
+        })
+    });
+
+// Instead of showing a menu, you provide any type of custom
+// functionality you want when the dropdown arrow is clicked:
+    Ext.create('Ext.button.Split', {
+        renderTo: 'button-ct',
+        text: 'Options',
+        handler: optionsHandler,
+        arrowHandler: myCustomHandler
+    });
+</code></pre>
+ * @cfg {Function} arrowHandler A function called when the arrow button is clicked (can be used instead of click event)
+ * @cfg {String} arrowTooltip The title attribute of the arrow
+ * @constructor
+ * Create a new menu button
+ * @param {Object} config The config object
+ * @xtype splitbutton
+ */
+
+Ext.define('Ext.button.Split', {
+
+    /* Begin Definitions */
+
+    alias: 'widget.splitbutton',
+
+    extend: 'Ext.button.Button',
+    alternateClassName: 'Ext.SplitButton',
+
+    // private
+    arrowCls      : 'split',
+    split         : true,
+
+    // private
+    initComponent : function(){
+        this.callParent();
+        /**
+         * @event arrowclick
+         * Fires when this button's arrow is clicked
+         * @param {MenuButton} this
+         * @param {EventObject} e The click event
+         */
+        this.addEvents("arrowclick");
+    },
+
+     /**
+     * Sets this button's arrow click handler.
+     * @param {Function} handler The function to call when the arrow is clicked
+     * @param {Object} scope (optional) Scope for the function passed above
+     */
+    setArrowHandler : function(handler, scope){
+        this.arrowHandler = handler;
+        this.scope = scope;
+    },
+
+    // private
+    onClick : function(e, t) {
+        var me = this;
+        
+        e.preventDefault();
+        if (!me.disabled) {
+            if (me.overMenuTrigger) {
+                if (me.menu && !me.menu.isVisible() && !me.ignoreNextClick) {
+                    me.showMenu();
+                }
+                me.fireEvent("arrowclick", me, e);
+                if (me.arrowHandler) {
+                    me.arrowHandler.call(me.scope || me, me, e);
+                }
+            } else {
+                if (me.enableToggle) {
+                    me.toggle();
+                }
+                me.fireEvent("click", me, e);
+                if (me.handler) {
+                    me.handler.call(me.scope || me, me, e);
+                }
+                me.onBlur();
+            }
+        }
+    }
+});
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