gecko-dev/xpfe/components/permissions/content/imageContextOverlay.xul

<?xml version="1.0"?>

<!--
   The contents of this file are subject to the Netscape Public
   License Version 1.1 (the "License"); you may not use this file
   except in compliance with the License. You may obtain a copy of
   the License at http://www.mozilla.org/NPL/
    
   Software distributed under the License is distributed on an "AS
   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
   implied. See the License for the specific language governing
   rights and limitations under the License.
    
   The Original Code is Mozilla Communicator client code, released
   March 31, 1998.
   
   The Initial Developer of the Original Code is Netscape
   Communications Corporation. Portions created by Netscape are
   Copyright (C) 1998-1999 Netscape Communications Corporation. All
   Rights Reserved.
   
   Contributor(s): 
  -->

<!DOCTYPE overlay SYSTEM "chrome://cookie/locale/cookieContextOverlay.dtd">

<overlay id="cookieContextOverlay"
         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <script type="application/x-javascript" src="chrome://cookie/content/cookieOverlay.js"/>

  <script type="application/x-javascript">
  <![CDATA[

    // Code from nsContextMenu.js. Note that we extend the prototype here, rather 
    // than making these methods on a new object, as some methods require access
    // to data maintained by nsContextMenu.  

    var cookieContextMenu = {

      // Determine if "Block Image" is to appear in the menu.
      // Return true if "imageBlocker.enabled" pref is set and image is not already blocked.
      isBlockingImages : function () {
        /* determine if image is already being blocked */
        var permissionmanager =
          Components.classes["@mozilla.org/permissionmanager;1"]
            .getService(Components.interfaces.nsIPermissionManager);
        if(!permissionmanager) {
          return true;
        }
        return !permissionmanager.testForBlocking(gContextMenu.imageURL, IMAGEPERMISSION);
      },

      // Determine if "imageBlocker.enabled" pref is set
      isPrefSet: function () {
        var pref = gContextMenu.getService('@mozilla.org/preferences-service;1', 'nsIPrefBranch');
        var result = false;
        try {
          result = pref.getBoolPref( "imageblocker.enabled" );
        } catch(e) {
        }
        return result;
      },

      // Block image from loading in the future.
      blockImage : function () {
        var permissionmanager =
          Components.classes["@mozilla.org/permissionmanager;1"]
            .getService(Components.interfaces.nsIPermissionManager);
        if (!permissionmanager) {
          return;
        }
        permissionmanager.add(gContextMenu.imageURL, false, IMAGEPERMISSION);
      },

      // Unblock image from loading in the future.
      unblockImage : function () {
        var permissionmanager =
          Components.classes["@mozilla.org/permissionmanager;1"]
            .getService().QueryInterface(Components.interfaces.nsIPermissionManager);
        if (!permissionmanager) {
          return;
        }
        permissionmanager.add(gContextMenu.imageURL, true, IMAGEPERMISSION);
      },

      initImageBlocking : function () {
        try {
        // Block image depends on whether an image was clicked on, and,
        // whether the user pref is enabled.

        gContextMenu.showItem
          ("context-blockimage",
           gContextMenu.onImage && cookieContextMenu.isPrefSet() &&
           cookieContextMenu.isBlockingImages());

        gContextMenu.showItem
          ("context-unblockimage",
           gContextMenu.onImage && cookieContextMenu.isPrefSet() &&
           !cookieContextMenu.isBlockingImages());
        } catch (e) {}
      },

      addContextMenuItemListeners : function (aEvent) {
        var contextPopup = document.getElementById("contentAreaContextSet");
        if (contextPopup)
          contextPopup.addEventListener("popupshowing", cookieContextMenu.initImageBlocking, false);

        var mailContextPopup = document.getElementById("messagePaneContext");
        if (mailContextPopup)
          mailContextPopup.addEventListener("popupshowing", cookieContextMenu.initImageBlocking, false);
      }
    }
    window.addEventListener("load", cookieContextMenu.addContextMenuItemListeners, false);

   ]]>
  </script>         

  <!-- context menu -->
  <popup id="contentAreaContextMenu">
    <menuitem id="context-blockimage"
              label="&blockImageCmd.label;"
              accesskey=""
              oncommand="cookieContextMenu.blockImage();"
              insertafter="context-viewimage"/>
    <menuitem id="context-unblockimage"
              label="&unblockImageCmd.label;"
              accesskey=""
              oncommand="cookieContextMenu.unblockImage();"
              insertafter="context-viewimage"/>
  </popup>

  <!-- Mail Message Pane context menu -->
  <popup id="messagePaneContext">
    <menuitem id="context-blockimage"
              label="&blockImageCmd.label;"
              accesskey=""
              oncommand="cookieContextMenu.blockImage();"
              insertafter="context-viewimage"/>
    <menuitem id="context-unblockimage"
              label="&unblockImageCmd.label;"
              accesskey=""
              oncommand="cookieContextMenu.unblockImage();"
              insertafter="context-viewimage"/>
  </popup>
  
</overlay>