[Laszlo-checkins] r14167 - in openlaszlo/trunk: WEB-INF/lps/lfc/kernel/dhtml test/accessibility

[hqm@openlaszlo.org]

Author: hqm
Date: 2009-06-16 21:45:19 -0700 (Tue, 16 Jun 2009)
New Revision: 14167

Added:
   openlaszlo/trunk/test/accessibility/test-labels.lzx
Modified:
   openlaszlo/trunk/WEB-INF/lps/lfc/kernel/dhtml/LzSprite.js
Log:
Change 20090615-hqm-y by hqm at badtzmaru.home on 2009-06-15 15:21:30 EDT
    in /Users/hqm/openlaszlo/trunk6
    for http://svn.openlaszlo.org/openlaszlo/trunk

Summary: add preliminary <label> implementation to support DHTML accessibility 

New Features:

Bugs Fixed: LPP-8248

Technical Reviewer: max
QA Reviewer: (pending)
Doc Reviewer: (pending)

Documentation:

Release Notes:

Details:

+ Implements LzSprite.setAADescription on DHTML sprite, by
adding a <LABEL> child element to the __LZdiv. 

Tests:

test-labels.lzx manually check the DOM to verify that the innerHTML content of the <label> elements is correct



Modified: openlaszlo/trunk/WEB-INF/lps/lfc/kernel/dhtml/LzSprite.js
===================================================================
--- openlaszlo/trunk/WEB-INF/lps/lfc/kernel/dhtml/LzSprite.js	2009-06-17 01:27:34 UTC (rev 14166)
+++ openlaszlo/trunk/WEB-INF/lps/lfc/kernel/dhtml/LzSprite.js	2009-06-17 04:45:19 UTC (rev 14167)
@@ -17,6 +17,7 @@
     this.constructor = arguments.callee;
     this.owner = owner;
     this.uid = LzSprite.prototype.uid++;
+    this.aadescriptionDiv = null;
 
     if (isroot) {
         this.isroot = true;
@@ -522,7 +523,7 @@
     ,opacity: true
     ,colortransform: false
     ,audio: false
-    ,accessibility: false
+    ,accessibility: true
     ,htmlinputtext: false
     ,advancedfonts: false
     ,bitmapcaching: false
@@ -2385,3 +2386,47 @@
         return null;
     }
 }
+
+/**
+  * Set accessibility description
+  * @param string s: Sets the accessibility name for this view
+  */
+LzSprite.prototype.setAADescription = function( s ) {
+    var aadiv = this.aadescriptionDiv;
+    if (aadiv == null) {
+        // If not already created, create a <label> element, nested in
+        // a <div style='display:none'> to make it invisible
+        this.aadescriptionDiv = aadiv = document.createElement('LABEL');
+        aadiv.style.display = "none";
+        // Safari reader only speaks labels which have a 'for' attribute
+        aadiv.setAttribute('for', this.__LZdiv.id);
+        this.__LZdiv.appendChild(aadiv);
+    }
+    aadiv.innerHTML = s;
+}
+
+
+/** Turns accessibility on/off if accessible == true and a screen reader is active 
+  * @param Boolean accessible
+  */
+LzSprite.prototype.setAccessible = function(accessible) {
+    // Not yet implemented
+}
+
+
+/**
+ * Activate/inactivate children for accessibility
+ * @param Boolean s: If true, activate the current view and all of its children
+ */
+LzSprite.prototype.setAAActive = function( s ){
+    // Not yet implemented
+}
+
+/**
+  * Set accessibility silencing/unsilencing
+  * @param string s: If true, this view is made silent to the screen reader.  
+  * If false, it is active to the screen reader.
+  */
+LzSprite.prototype.setAASilent = function( s ){
+    // Not yet implemented
+}

Added: openlaszlo/trunk/test/accessibility/test-labels.lzx


Property changes on: openlaszlo/trunk/test/accessibility/test-labels.lzx
___________________________________________________________________
Name: svn:mime-type
   + text/plain
Name: svn:eol-style
   + native