diff -r f3521a11d878 -r 918767a9c8d3 Wikipedia/WRTKit/UI/UIElement.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Wikipedia/WRTKit/UI/UIElement.js	Tue Mar 09 10:34:58 2010 +0000
@@ -0,0 +1,114 @@
+/*
+© Copyright 2008 Nokia Corporation. All rights reserved.
+
+IMPORTANT:  The Nokia software ("WRTKit and Example Widget files") is supplied to you by Nokia
+Corporation (“Nokia”) in consideration of your agreement to the following terms. Your use, installation
+and/or redistribution of the WRTKit and Example Widget files constitutes acceptance of these terms. If
+you do not agree with these terms, please do not use, install, or redistribute the WRTKit and Example
+Widget files.
+
+In consideration of your agreement to abide by the following terms, and subject to these terms, Nokia
+grants you a personal, non-exclusive license, under Nokia’s copyrights in the WRTKit and Example
+Widget files, to use, reproduce, and redistribute the WRTKit and Example files, in text form (for HTML,
+CSS, or JavaScript files) or binary form (for associated images), for the sole purpose of creating S60
+Widgets.
+
+If you redistribute the WRTKit and Example files, you must retain this entire notice in all such
+redistributions of the WRTKit and Example files.
+
+You may not use the name, trademarks, service marks or logos of Nokia to endorse or promote products
+that include the WRTKit and Example files without the prior written explicit agreement with Nokia.
+Except as expressly stated in this notice, no other rights or licenses, express or implied, are granted by
+Nokia herein, including but not limited to any patent rights that may be infringed by your products that
+incorporate the WRTKit and Example files or by other works in which the WRTKit and Example files
+may be incorporated.
+
+The WRTKit and Example files are provided on an "AS IS" basis.  NOKIA MAKES NO
+WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
+WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE, REGARDING THE EXAMPLES OR ITS USE AND OPERATION
+ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+
+IN NO EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, AND/OR
+DISTRIBUTION OF THE EXAMPLES, HOWEVER CAUSED AND WHETHER UNDER THEORY
+OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE,
+EVEN IF NOKIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+///////////////////////////////////////////////////////////////////////////////
+// The UIElement class is the base class for all user interface elements.
+
+// Constructor.
+function UIElement(id) {
+    if (id != UI_NO_INIT_ID) {
+        this.init(id);
+    }
+}
+
+// UI element identifier.
+UIElement.prototype.id = null;
+
+// Root HTML element in the UI element.
+UIElement.prototype.rootElement = null;
+
+// Initializer for UIElement.
+UIElement.prototype.init = function(id) {
+    uiLogger.debug("UIElement.init(" + id + ")");
+    
+    // copy identifier
+    this.id = id;
+    
+    // init event listener array
+    this.eventListeners = [];
+    
+    // create the root element
+    this.rootElement = document.createElement("div");
+    if (id != null) {
+        this.rootElement.id = id;
+    }
+}
+
+// Returns an array containing the current event listeners.
+UIElement.prototype.getEventListeners = function() {
+    return this.eventListeners;
+}
+
+// Adds an event listener.
+UIElement.prototype.addEventListener = function(eventType, listener) {
+    var listenerDef = { type: eventType, listener: listener };
+    this.eventListeners.push(listenerDef);
+}
+
+// Removes an event listener.
+UIElement.prototype.removeEventListener = function(eventType, listener) {
+    // iterate through current listeners and remove the specified
+    // listener when its found
+    for (var i = 0; i < this.eventListeners.length; i++) {
+        var listenerDef = this.eventListeners[i];
+        if ((listenerDef.type == eventType) &&
+                (listenerDef.listener == listener)) {
+            this.eventListeners.splice(i, 1);
+            return;
+        }
+    }
+}
+
+// Factory method for an event object where this object is the source object.
+UIElement.prototype.createEvent = function(type, value) {
+    return { source: this, type: type, value: value };
+}
+
+// Fires an event to all listeners.
+UIElement.prototype.fireEvent = function(event) {
+    // iterate through all event listeners and notify them of the event
+    for (var i = 0; i < this.eventListeners.length; i++) {
+        var listenerDef = this.eventListeners[i];
+        if (listenerDef.type == null || listenerDef.type == event.type) {
+            listenerDef.listener.call(this, event);
+        }
+    }
+}