LCOV - code coverage report
Current view: directory - objdir/dist/include - nsAsyncDOMEvent.h (source / functions) Found Hit Coverage
Test: app.info Lines: 12 4 33.3 %
Date: 2012-06-02 Functions: 5 3 60.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Aaron Leventhal (aaronleventhal@moonset.net)
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2005
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #ifndef nsAsyncDOMEvent_h___
      39                 : #define nsAsyncDOMEvent_h___
      40                 : 
      41                 : #include "nsCOMPtr.h"
      42                 : #include "nsThreadUtils.h"
      43                 : #include "nsINode.h"
      44                 : #include "nsIDOMEvent.h"
      45                 : #include "nsString.h"
      46                 : #include "nsIDocument.h"
      47                 : 
      48                 : /**
      49                 :  * Use nsAsyncDOMEvent to fire a DOM event that requires safe a stable DOM.
      50                 :  * For example, you may need to fire an event from within layout, but
      51                 :  * want to ensure that the event handler doesn't mutate the DOM at
      52                 :  * the wrong time, in order to avoid resulting instability.
      53                 :  */
      54                 :  
      55           17476 : class nsAsyncDOMEvent : public nsRunnable {
      56                 : public:
      57            4325 :   nsAsyncDOMEvent(nsINode *aEventNode, const nsAString& aEventType,
      58                 :                   bool aBubbles, bool aDispatchChromeOnly)
      59                 :     : mEventNode(aEventNode), mEventType(aEventType),
      60                 :       mBubbles(aBubbles),
      61            4325 :       mDispatchChromeOnly(aDispatchChromeOnly)
      62            4325 :   { }
      63                 : 
      64               0 :   nsAsyncDOMEvent(nsINode *aEventNode, nsIDOMEvent *aEvent)
      65               0 :     : mEventNode(aEventNode), mEvent(aEvent), mDispatchChromeOnly(false)
      66               0 :   { }
      67                 : 
      68                 :   nsAsyncDOMEvent(nsINode *aEventNode, nsEvent &aEvent);
      69                 : 
      70                 :   NS_IMETHOD Run();
      71                 :   nsresult PostDOMEvent();
      72                 :   void RunDOMEventWhenSafe();
      73                 : 
      74                 :   nsCOMPtr<nsINode>     mEventNode;
      75                 :   nsCOMPtr<nsIDOMEvent> mEvent;
      76                 :   nsString              mEventType;
      77                 :   bool                  mBubbles;
      78                 :   bool                  mDispatchChromeOnly;
      79                 : };
      80                 : 
      81                 : class nsLoadBlockingAsyncDOMEvent : public nsAsyncDOMEvent {
      82                 : public:
      83               0 :   nsLoadBlockingAsyncDOMEvent(nsINode *aEventNode, const nsAString& aEventType,
      84                 :                               bool aBubbles, bool aDispatchChromeOnly)
      85                 :     : nsAsyncDOMEvent(aEventNode, aEventType, aBubbles, aDispatchChromeOnly),
      86               0 :       mBlockedDoc(aEventNode->OwnerDoc())
      87                 :   {
      88               0 :     if (mBlockedDoc) {
      89               0 :       mBlockedDoc->BlockOnload();
      90                 :     }
      91               0 :   }
      92                 : 
      93                 :   nsLoadBlockingAsyncDOMEvent(nsINode *aEventNode, nsIDOMEvent *aEvent)
      94                 :     : nsAsyncDOMEvent(aEventNode, aEvent),
      95                 :       mBlockedDoc(aEventNode->OwnerDoc())
      96                 :   {
      97                 :     if (mBlockedDoc) {
      98                 :       mBlockedDoc->BlockOnload();
      99                 :     }
     100                 :   }
     101                 :   
     102                 :   ~nsLoadBlockingAsyncDOMEvent();
     103                 : 
     104                 :   nsCOMPtr<nsIDocument> mBlockedDoc;
     105                 : };
     106                 : 
     107                 : #endif

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