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      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 #include "config.h"
     27 #include "MediaPlayerPrivateFullscreenWindow.h"
     28 
     29 #include "IntRect.h"
     30 #include "WebCoreInstanceHandle.h"
     31 #include <windows.h>
     32 
     33 #if USE(CG)
     34 #include <CoreGraphics/CGColor.h>
     35 #endif
     36 
     37 #if USE(ACCELERATED_COMPOSITING)
     38 #include "CACFLayerTreeHost.h"
     39 #include "PlatformCALayer.h"
     40 #endif
     41 
     42 namespace WebCore {
     43 
     44 MediaPlayerPrivateFullscreenWindow::MediaPlayerPrivateFullscreenWindow(MediaPlayerPrivateFullscreenClient* client)
     45     : m_client(client)
     46     , m_hwnd(0)
     47 #if USE(ACCELERATED_COMPOSITING)
     48     , m_layerTreeHost(CACFLayerTreeHost::create())
     49 #endif
     50 {
     51 }
     52 
     53 MediaPlayerPrivateFullscreenWindow::~MediaPlayerPrivateFullscreenWindow()
     54 {
     55     if (!m_hwnd)
     56         return;
     57 
     58     ::DestroyWindow(m_hwnd);
     59     ASSERT(!m_hwnd);
     60 }
     61 
     62 void MediaPlayerPrivateFullscreenWindow::createWindow(HWND parentHwnd)
     63 {
     64     static ATOM windowAtom;
     65     static LPCWSTR windowClassName = L"MediaPlayerPrivateFullscreenWindowClass";
     66     if (!windowAtom) {
     67         WNDCLASSEX wcex = {0};
     68         wcex.cbSize = sizeof(WNDCLASSEX);
     69         wcex.style = CS_HREDRAW | CS_VREDRAW;
     70         wcex.lpfnWndProc = staticWndProc;
     71         wcex.hInstance = instanceHandle();
     72         wcex.lpszClassName = windowClassName;
     73         windowAtom = ::RegisterClassEx(&wcex);
     74     }
     75 
     76     ASSERT(!m_hwnd);
     77 
     78     MONITORINFO mi = {0};
     79     mi.cbSize = sizeof(MONITORINFO);
     80     if (!GetMonitorInfo(MonitorFromWindow(parentHwnd, MONITOR_DEFAULTTONEAREST), &mi))
     81         return;
     82 
     83     IntRect monitorRect = mi.rcMonitor;
     84 
     85     ::CreateWindowExW(WS_EX_TOOLWINDOW, windowClassName, L"", WS_POPUP | WS_VISIBLE,
     86         monitorRect.x(), monitorRect.y(), monitorRect.width(), monitorRect.height(),
     87         parentHwnd, 0, WebCore::instanceHandle(), this);
     88     ASSERT(IsWindow(m_hwnd));
     89 
     90 #if USE(ACCELERATED_COMPOSITING)
     91     m_layerTreeHost->setWindow(m_hwnd);
     92 #endif
     93 
     94     ::SetFocus(m_hwnd);
     95 }
     96 
     97 #if USE(ACCELERATED_COMPOSITING)
     98 void MediaPlayerPrivateFullscreenWindow::setRootChildLayer(PassRefPtr<PlatformCALayer> rootChild)
     99 {
    100     if (m_rootChild == rootChild)
    101         return;
    102 
    103     if (m_rootChild)
    104         m_rootChild->removeFromSuperlayer();
    105 
    106     m_rootChild = rootChild;
    107 
    108     if (!m_rootChild)
    109         return;
    110 
    111     m_layerTreeHost->setRootChildLayer(m_rootChild.get());
    112     PlatformCALayer* rootLayer = m_rootChild->rootLayer();
    113     CGRect rootBounds = m_rootChild->rootLayer()->bounds();
    114     m_rootChild->setFrame(rootBounds);
    115     m_rootChild->setBackgroundColor(CGColorGetConstantColor(kCGColorBlack));
    116 #ifndef NDEBUG
    117     RetainPtr<CGColorRef> redColor(AdoptCF, CGColorCreateGenericRGB(1, 0, 0, 1));
    118     rootLayer->setBackgroundColor(redColor.get());
    119 #else
    120     rootLayer->setBackgroundColor(CGColorGetConstantColor(kCGColorBlack));
    121 #endif
    122 }
    123 #endif
    124 
    125 LRESULT MediaPlayerPrivateFullscreenWindow::staticWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
    126 {
    127     LONG_PTR longPtr = GetWindowLongPtr(hWnd, GWLP_USERDATA);
    128 
    129     if (!longPtr && message == WM_CREATE) {
    130         LPCREATESTRUCT lpcs = reinterpret_cast<LPCREATESTRUCT>(lParam);
    131         longPtr = reinterpret_cast<LONG_PTR>(lpcs->lpCreateParams);
    132         ::SetWindowLongPtr(hWnd, GWLP_USERDATA, longPtr);
    133     }
    134 
    135     if (MediaPlayerPrivateFullscreenWindow* window = reinterpret_cast<MediaPlayerPrivateFullscreenWindow*>(longPtr))
    136         return window->wndProc(hWnd, message, wParam, lParam);
    137 
    138     return ::DefWindowProc(hWnd, message, wParam, lParam);
    139 }
    140 
    141 LRESULT MediaPlayerPrivateFullscreenWindow::wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
    142 {
    143     LRESULT lResult = 0;
    144     switch (message) {
    145     case WM_CREATE:
    146         m_hwnd = hWnd;
    147         break;
    148     case WM_DESTROY:
    149         m_hwnd = 0;
    150 #if USE(ACCELERATED_COMPOSITING)
    151         m_layerTreeHost->setWindow(0);
    152 #endif
    153         break;
    154     case WM_WINDOWPOSCHANGED:
    155         {
    156             LPWINDOWPOS wp = reinterpret_cast<LPWINDOWPOS>(lParam);
    157             if (wp->flags & SWP_NOSIZE)
    158                 break;
    159 #if USE(ACCELERATED_COMPOSITING)
    160             m_layerTreeHost->resize();
    161             PlatformCALayer* rootLayer = m_rootChild->rootLayer();
    162             CGRect rootBounds = m_rootChild->rootLayer()->bounds();
    163             m_rootChild->setFrame(rootBounds);
    164             m_rootChild->setNeedsLayout();
    165 #endif
    166         }
    167         break;
    168     case WM_PAINT:
    169 #if USE(ACCELERATED_COMPOSITING)
    170         m_layerTreeHost->paint();
    171         ::ValidateRect(m_hwnd, 0);
    172 #endif
    173         break;
    174     }
    175 
    176     if (m_client)
    177         lResult = m_client->fullscreenClientWndProc(hWnd, message, wParam, lParam);
    178 
    179     return lResult;
    180 }
    181 
    182 }
    183