third_party/WebKit/Source/core/events/WindowEventContext.cpp

   1 /*
   2  * Copyright (C) 2010 Google Inc. All Rights Reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  */
  26
  27 #include "config.h"
  28 #include "core/events/WindowEventContext.h"
  29
  30 #include "core/dom/Document.h"
  31 #include "core/dom/Node.h"
  32 #include "core/events/Event.h"
  33 #include "core/events/NodeEventContext.h"
  34 #include "core/frame/LocalDOMWindow.h"
  35
  36 namespace blink {
  37
  38 WindowEventContext::WindowEventContext(Event& event, const NodeEventContext& topNodeEventContext)
  39 {
  40     // We don't dispatch load events to the window. This quirk was originally
  41     // added because Mozilla doesn't propagate load events to the window object.
  42     if (event.type() == EventTypeNames::load)
  43         return;
  44     if (!topNodeEventContext.node()->isDocumentNode())
  45         return;
  46     m_window = toDocument(topNodeEventContext.node())->domWindow();
  47     m_target = topNodeEventContext.target();
  48 }
  49
  50 bool WindowEventContext::handleLocalEvents(Event& event)
  51 {
  52     if (!m_window)
  53         return false;
  54
  55     event.setTarget(target());
  56     event.setCurrentTarget(window());
  57     m_window->fireEventListeners(&event);
  58     return true;
  59 }
  60
  61 DEFINE_TRACE(WindowEventContext)
  62 {
  63     visitor->trace(m_window);
  64     visitor->trace(m_target);
  65 }
  66
  67 }