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Bug 589337 - Set css viewport to zero when tab is hidden. [r=stechz, a=b3+]
authorWes Johnston <wjohnston@mozilla.com>
Wed, 17 Nov 2010 15:01:00 -0500
changeset 67043 e204983d95a2c202beb11970af055c077996d277
parent 67042 15e816bc9b3133b5952ae61488aca7cbcc1b32ff
child 67044 261747d02e38e77d5d94c4b3b49d15990ba6dc99
push id1
push userroot
push dateTue, 26 Apr 2011 22:38:44 +0000
treeherdermozilla-beta@bfdb6e623a36 [default view] [failures only]
perfherder[talos] [build metrics] [platform microbench] (compared to previous push)
reviewersstechz, b3
bugs589337
Bug 589337 - Set css viewport to zero when tab is hidden. [r=stechz, a=b3+]
mobile/chrome/content/bindings/browser.js file | annotate | diff | comparison | revisions
mobile/chrome/content/bindings/browser.xml file | annotate | diff | comparison | revisions
mobile/chrome/content/browser.js file | annotate | diff | comparison | revisions
mobile/chrome/content/content.js file | annotate | diff | comparison | revisions 
--- a/mobile/chrome/content/bindings/browser.js
+++ b/mobile/chrome/content/bindings/browser.js
@@ -364,8 +364,33 @@ let ContentScroll =  {
         break;
       }
     }
   }
 };
 
 ContentScroll.init();
 
+let ContentActive =  {
+  init: function() {
+    addMessageListener("Content:Activate", this);
+    addMessageListener("Content:Deactivate", this);
+  },
+
+  receiveMessage: function(aMessage) {
+    let json = aMessage.json;
+    switch (aMessage.name) {
+      case "Content:Activate":
+        let focusManager = Cc["@mozilla.org/focus-manager;1"].getService(Ci.nsIFocusManager);
+        focusManager.clearFocus(content);
+        docShell.isActive = false;
+        let utils = Util.getWindowUtils(content);
+        utils.setDisplayPort(0,0,0,0);
+        break;
+
+      case "Content:Deactivate":
+        docShell.isActive = true;
+        break;
+    }
+  }
+};
+
+ContentActive.init();
--- a/mobile/chrome/content/bindings/browser.xml
+++ b/mobile/chrome/content/bindings/browser.xml
@@ -584,16 +584,27 @@
          <body><![CDATA[
             if (this.contentWindowId != aNewId) {
                this.contentWindowId = aNewId;
                return true;
             }
             return false;
          ]]></body>
       </method>
+
+      <field name="_active">false</field>
+      <property name="active" onget="return this._active;">
+         <setter>
+            this._active = val;
+            this.messageManager.sendAsyncMessage((val ? "Content:Activate" : "Content:Deactivate"), {});
+            if (val)
+               this._updateCacheViewport();
+         </setter>
+      </property>
+
     </implementation>
   </binding>
 
   <binding id="remote-browser" extends="#local-browser">
     <implementation type="application/javascript" implements="nsIAccessibleProvider, nsIObserver, nsIDOMEventListener, nsIFrameMessageListener">
       <property name="accessibleType" readonly="true">
         <getter>
           <![CDATA[
--- a/mobile/chrome/content/browser.js
+++ b/mobile/chrome/content/browser.js
@@ -2677,17 +2677,17 @@ Tab.prototype = {
     return browser;
   },
 
   _destroyBrowser: function _destroyBrowser() {
     if (this._browser) {
       let notification = this._notification;
       let browser = this._browser;
       browser.removeProgressListener(this._listener);
-      browser.messageManager.sendAsyncMessage("Browser:Blur", {});
+      browser.active = false;
 
       this._notification = null;
       this._browser = null;
       this._listener = null;
       this._loading = false;
 
       Elements.browsers.removeChild(notification);
     }
@@ -2783,22 +2783,22 @@ Tab.prototype = {
       return;
 
     let notification = this._notification;
     let browser = this._browser;
 
     if (aActive) {
       browser.setAttribute("type", "content-primary");
       Elements.browsers.selectedPanel = notification;
-      browser.messageManager.sendAsyncMessage("Browser:Focus", {});
+      browser.active = true;
       document.getElementById("tabs").selectedTab = this._chromeTab;
     }
     else {
       browser.setAttribute("type", "content");
-      browser.messageManager.sendAsyncMessage("Browser:Blur", {});
+      browser.active = false;
     }
   },
 
   get active() {
     if (!this._browser)
       return false;
     return this._browser.getAttribute("type") == "content-primary";
   },
--- a/mobile/chrome/content/content.js
+++ b/mobile/chrome/content/content.js
@@ -281,18 +281,16 @@ ProgressController.prototype = {
       .getInterface(Ci.nsIWebProgress);
     webProgress.removeProgressListener(this);
   }
 };
 
 
 /** Can't think of a good description of this class.  It probably does too much? */
 function Content() {
-  addMessageListener("Browser:Blur", this);
-  addMessageListener("Browser:Focus", this);
   addMessageListener("Browser:KeyEvent", this);
   addMessageListener("Browser:MouseDown", this);
   addMessageListener("Browser:MouseUp", this);
   addMessageListener("Browser:SaveAs", this);
   addMessageListener("Browser:ZoomToPoint", this);
   addMessageListener("Browser:MozApplicationCache:Fetch", this);
 
   if (Util.isParentProcess())
@@ -363,27 +361,16 @@ Content.prototype = {
 
   receiveMessage: function receiveMessage(aMessage) {
     let json = aMessage.json;
     let x = json.x;
     let y = json.y;
     let modifiers = json.modifiers;
 
     switch (aMessage.name) {
-      case "Browser:Blur": {
-        gFocusManager.clearFocus(content);
-        docShell.isActive = false;
-        this._selected = false;
-        break;
-      }
-      case "Browser:Focus":
-        docShell.isActive = true;
-        this._selected = true;
-        break;
-
       case "Browser:KeyEvent":
         let utils = Util.getWindowUtils(content);
         let defaultAction;
         if (!Util.isParentProcess())
           defaultAction = utils.sendKeyEvent(json.type, json.keyCode, json.charCode, modifiers);
         if (defaultAction && json.type == "keypress") {
           const masks = Ci.nsIDOMNSEvent;
           sendAsyncMessage("Browser:KeyPress", {
@@ -530,20 +517,16 @@ Content.prototype = {
 
   startLoading: function startLoading() {
     this._loading = true;
   },
 
   stopLoading: function stopLoading() {
     this._loading = false;
   },
-
-  isSelected: function isSelected() {
-    return this._selected;
-  }
 };
 
 let contentObject = new Content();
 
 let ViewportHandler = {
   metadata: null,
 
   init: function init() {
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