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-<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
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-<body onload="prettyPrint();">\r
- <pre class="prettyprint lang-js"><div id="cls-Ext.KeyNav"></div>/**
- * @class Ext.KeyNav
- * <p>Provides a convenient wrapper for normalized keyboard navigation. KeyNav allows you to bind
- * navigation keys to function calls that will get called when the keys are pressed, providing an easy
- * way to implement custom navigation schemes for any UI component.</p>
- * <p>The following are all of the possible keys that can be implemented: enter, left, right, up, down, tab, esc,
- * pageUp, pageDown, del, home, end. Usage:</p>
- <pre><code>
-var nav = new Ext.KeyNav("my-element", {
- "left" : function(e){
- this.moveLeft(e.ctrlKey);
- },
- "right" : function(e){
- this.moveRight(e.ctrlKey);
- },
- "enter" : function(e){
- this.save();
- },
- scope : this
-});
-</code></pre>
- * @constructor
- * @param {Mixed} el The element to bind to
- * @param {Object} config The config
- */
-Ext.KeyNav = function(el, config){
- this.el = Ext.get(el);
- Ext.apply(this, config);
- if(!this.disabled){
- this.disabled = true;
- this.enable();
- }
-};
-
-Ext.KeyNav.prototype = {
- <div id="cfg-Ext.KeyNav-disabled"></div>/**
- * @cfg {Boolean} disabled
- * True to disable this KeyNav instance (defaults to false)
- */
- disabled : false,
- <div id="cfg-Ext.KeyNav-defaultEventAction"></div>/**
- * @cfg {String} defaultEventAction
- * The method to call on the {@link Ext.EventObject} after this KeyNav intercepts a key. Valid values are
- * {@link Ext.EventObject#stopEvent}, {@link Ext.EventObject#preventDefault} and
- * {@link Ext.EventObject#stopPropagation} (defaults to 'stopEvent')
- */
- defaultEventAction: "stopEvent",
- <div id="cfg-Ext.KeyNav-forceKeyDown"></div>/**
- * @cfg {Boolean} forceKeyDown
- * Handle the keydown event instead of keypress (defaults to false). KeyNav automatically does this for IE since
- * IE does not propagate special keys on keypress, but setting this to true will force other browsers to also
- * handle keydown instead of keypress.
- */
- forceKeyDown : false,
-
- // private
- prepareEvent : function(e){
- var k = e.getKey();
- var h = this.keyToHandler[k];
- if(Ext.isSafari2 && h && k >= 37 && k <= 40){
- e.stopEvent();
- }
- },
-
- // private
- relay : function(e){
- var k = e.getKey();
- var h = this.keyToHandler[k];
- if(h && this[h]){
- if(this.doRelay(e, this[h], h) !== true){
- e[this.defaultEventAction]();
- }
- }
- },
-
- // private
- doRelay : function(e, h, hname){
- return h.call(this.scope || this, e);
- },
-
- // possible handlers
- enter : false,
- left : false,
- right : false,
- up : false,
- down : false,
- tab : false,
- esc : false,
- pageUp : false,
- pageDown : false,
- del : false,
- home : false,
- end : false,
-
- // quick lookup hash
- keyToHandler : {
- 37 : "left",
- 39 : "right",
- 38 : "up",
- 40 : "down",
- 33 : "pageUp",
- 34 : "pageDown",
- 46 : "del",
- 36 : "home",
- 35 : "end",
- 13 : "enter",
- 27 : "esc",
- 9 : "tab"
- },
-
- <div id="method-Ext.KeyNav-enable"></div>/**
- * Enable this KeyNav
- */
- enable: function(){
- if(this.disabled){
- // ie won't do special keys on keypress, no one else will repeat keys with keydown
- // the EventObject will normalize Safari automatically
- if(this.isKeydown()){
- this.el.on("keydown", this.relay, this);
- }else{
- this.el.on("keydown", this.prepareEvent, this);
- this.el.on("keypress", this.relay, this);
- }
- this.disabled = false;
- }
- },
-
- <div id="method-Ext.KeyNav-disable"></div>/**
- * Disable this KeyNav
- */
- disable: function(){
- if(!this.disabled){
- if(this.isKeydown()){
- this.el.un("keydown", this.relay, this);
- }else{
- this.el.un("keydown", this.prepareEvent, this);
- this.el.un("keypress", this.relay, this);
- }
- this.disabled = true;
- }
- },
-
- <div id="method-Ext.KeyNav-setDisabled"></div>/**
- * Convenience function for setting disabled/enabled by boolean.
- * @param {Boolean} disabled
- */
- setDisabled : function(disabled){
- this[disabled ? "disable" : "enable"]();
- },
-
- // private
- isKeydown: function(){
- return this.forceKeyDown || Ext.EventManager.useKeydown;
- }
-};
-</pre> \r
-</body>\r
-</html>
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