1 /*

     2  * Copyright (C) 2010 Apple 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 INC. AND ITS CONTRIBUTORS ``AS IS''

    14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

    17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

    23  * THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    25 

    26 #ifndef WebView_h

    27 #define WebView_h

    28 

    29 #include "PageClient.h"

    30 #include "WebPageProxy.h"

    31 #include <WebCore/WindowMessageListener.h>

    32 #include <wtf/PassRefPtr.h>

    33 #include <wtf/RefCounted.h>

    34 #include <wtf/RefPtr.h>

    35 

    36 namespace WebCore {

    37     class String;

    38 }

    39 

    40 namespace WebKit {

    41 

    42 class DrawingAreaProxy;

    43 class WebPageNamespace;

    44 

    45 class WebView : public RefCounted<WebView>, public PageClient, WebCore::WindowMessageListener {

    46 public:

    47     static PassRefPtr<WebView> create(RECT rect, WebPageNamespace* pageNamespace, HWND hostWindow)

    48     {

    49         return adoptRef(new WebView(rect, pageNamespace, hostWindow));

    50     }

    51     ~WebView();

    52 

    53     RECT rect() const { return m_rect; }

    54 

    55     HWND window() const { return m_window; }

    56     HWND hostWindow() const { return m_hostWindow; }

    57     void setHostWindow(HWND);

    58     void windowAncestryDidChange();

    59 

    60     WebPageProxy* page() const { return m_page.get(); }

    61 

    62 private:

    63     WebView(RECT, WebPageNamespace*, HWND hostWindow);

    64 

    65     static bool registerWebViewWindowClass();

    66     static LRESULT CALLBACK WebViewWndProc(HWND, UINT, WPARAM, LPARAM);

    67     LRESULT wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

    68 

    69     LRESULT onMouseEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    70     LRESULT onWheelEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    71     LRESULT onKeyEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    72     LRESULT onPaintEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    73     LRESULT onSizeEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    74     LRESULT onWindowPositionChangedEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    75     LRESULT onSetFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    76     LRESULT onKillFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    77     LRESULT onTimerEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    78     LRESULT onShowWindowEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    79     LRESULT onSetCursor(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    80 

    81     bool isActive();

    82     void updateActiveState();

    83     void updateActiveStateSoon();

    84 

    85     void initializeToolTipWindow();

    86 

    87     void startTrackingMouseLeave();

    88     void stopTrackingMouseLeave();

    89 

    90     void close();

    91 

    92     // PageClient

    93     virtual void processDidExit();

    94     virtual void processDidRevive();

    95     virtual void takeFocus(bool direction);

    96     virtual void toolTipChanged(const WebCore::String&, const WebCore::String&);

    97     virtual void setCursor(const WebCore::Cursor&);

    98 #if USE(ACCELERATED_COMPOSITING)

    99     virtual void pageDidEnterAcceleratedCompositing();

   100     virtual void pageDidLeaveAcceleratedCompositing();

   101 #endif

   102 

   103     // WebCore::WindowMessageListener

   104     virtual void windowReceivedMessage(HWND, UINT message, WPARAM, LPARAM);

   105 

   106     RECT m_rect;

   107     HWND m_window;

   108     HWND m_hostWindow;

   109     HWND m_topLevelParentWindow;

   110     HWND m_toolTipWindow;

   111 

   112     HCURSOR m_lastCursorSet;

   113 

   114     bool m_trackingMouseLeave;

   115     bool m_isBeingDestroyed;

   116 

   117     RefPtr<WebPageProxy> m_page;

   118 };

   119 

   120 } // namespace WebKit

   121 

   122 #endif // WebView_h