[mms] Added standardized/normalized mousewheelY javascript event hand…

…ling to HordeCore. Naturally, can't use it in the one place I was thinking - viewport.js - since that library doesn't require HordeCore. But will probably be useful in the future.
horde · Nov 7, 2013 · 880b5db · 880b5db
1 parent 0d123dc
commit 880b5db
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Showing 2 changed files with 50 additions and 6 deletions.
diff --git a/framework/Core/js/hordecore.js b/framework/Core/js/hordecore.js
@@ -542,14 +542,31 @@ var HordeCore = {
 
     initHandler: function(type)
     {
+        var h, t;
+
         if (!this.handlers[type]) {
             switch (type) {
             case 'click':
             case 'dblclick':
-                this.handlers[type] = this.clickHandler.bindAsEventListener(this);
-                document.observe(type, this.handlers[type]);
+                h = this.clickHandler;
+                t = [ type ];
+                break;
+
+            case 'mousewheelY':
+                h = this.mousewheelYHandler;
+                t = ('onwheel' in document || (document.documentMode >= 9))
+                    ? [ 'wheel' ]
+                    : [ 'mousewheel', 'DomMouseScroll' ];
                 break;
+
+            default:
+                return;
             }
+
+            this.handlers[type] = h.bindAsEventListener(this);
+            t.each(function(e) {
+                document.observe(e, this.handlers[type]);
+            }, this);
         }
     },
 
@@ -575,6 +592,33 @@ var HordeCore = {
         }
     },
 
+    // 'HordeCore:mousewheelY' is fired on a vertical mouse wheel scroll event
+    // for every element up to the document root. The memo attribute is
+    // an integer: either -1 or 1.
+    //
+    // @since 2.11.0
+    mousewheelYHandler: function(e)
+    {
+        var delta = 0;
+
+        if (e.wheelDelta) {
+            delta = e.wheelDelta;
+        }
+        if (e.detail) {
+            delta = e.detail * -1;
+        }
+        if (e.deltaY) {
+            delta = e.deltaY * -1;
+        }
+        if (!Object.isUndefined(e.wheelDeltaY)) {
+            delta = e.wheelDeltaY;
+        }
+
+        if (delta) {
+            e.element().fire('HordeCore:mousewheelY', (delta > 0) ? 1 : -1);
+        }
+    },
+
     tasksHandler: function(e)
     {
         var t = e.tasks || {};

diff --git a/framework/Core/package.xml b/framework/Core/package.xml
@@ -28,7 +28,7 @@
   <email>mrubinsk@horde.org</email>
   <active>yes</active>
  </developer>
- <date>2013-10-29</date>
+ <date>2013-11-06</date>
  <version>
   <release>2.11.0</release>
   <api>2.11.0</api>
@@ -39,6 +39,7 @@
  </stability>
  <license uri="http://www.horde.org/licenses/lgpl21">LGPL-2.1</license>
  <notes>
+* [mms] Added standardized/normalized mousewheelY javascript event handling to HordeCore.
 * [mms] Add nonce generation/checking to Horde_Session.
 * [mms] Application hook methods moved from Horde:: to Horde_Core_Hooks::.
 * [mms] Add &apos;fallback&apos; option for the Horde_Registry#appInit() &apos;authentication&apos; parameter.
@@ -50,7 +51,6 @@
     <dir name="Horde">
      <dir name="Core">
       <file name="COPYING" role="doc" />
-      <file name="UPGRADING" role="doc" />
      </dir> <!-- /doc/Horde/Core -->
     </dir> <!-- /doc/Horde -->
    </dir> <!-- /doc -->
@@ -1442,7 +1442,6 @@
  <phprelease>
   <filelist>
    <install as="COPYING" name="doc/Horde/Core/COPYING" />
-   <install as="UPGRADING" name="doc/Horde/Core/UPGRADING" />
    <install as="js/accesskeys.js" name="js/accesskeys.js" />
    <install as="js/addressbooksprefs.js" name="js/addressbooksprefs.js" />
    <install as="js/alarmprefs.js" name="js/alarmprefs.js" />
@@ -3224,9 +3223,10 @@
    <stability>
     <release>stable</release>
     <api>stable</api></stability>
-   <date>2013-10-29</date>
+   <date>2013-11-06</date>
    <license uri="http://www.horde.org/licenses/lgpl21">LGPL-2.1</license>
    <notes>
+* [mms] Added standardized/normalized mousewheelY javascript event handling to HordeCore.
 * [mms] Add nonce generation/checking to Horde_Session.
 * [mms] Application hook methods moved from Horde:: to Horde_Core_Hooks::.
 * [mms] Add &apos;fallback&apos; option for the Horde_Registry#appInit() &apos;authentication&apos; parameter.