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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/wince/SharedTimerWinCE.cpp | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/wince/SharedTimerWinCE.cpp')
-rw-r--r-- | Source/WebCore/platform/wince/SharedTimerWinCE.cpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/Source/WebCore/platform/wince/SharedTimerWinCE.cpp b/Source/WebCore/platform/wince/SharedTimerWinCE.cpp new file mode 100644 index 0000000..829d95e --- /dev/null +++ b/Source/WebCore/platform/wince/SharedTimerWinCE.cpp @@ -0,0 +1,122 @@ +/* + * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. + * Copyright (C) 2007-2008 Torch Mobile, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "SharedTimer.h" + +#include "Page.h" +#include "SystemTime.h" +#include "WebCoreInstanceHandle.h" +#include "Widget.h" +#include <wtf/Assertions.h> +#include <wtf/CurrentTime.h> +#include <windows.h> + +namespace WebCore { + +enum { + TimerIdNone = 0, + TimerIdAuto, + TimerIdManual, +}; +static UINT timerID = TimerIdNone; + +static void (*sharedTimerFiredFunction)(); + +static HWND timerWindowHandle = 0; +const LPCWSTR kTimerWindowClassName = L"TimerWindowClass"; + +LRESULT CALLBACK TimerWindowWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) +{ + if (message == WM_TIMER) { + if (timerID != TimerIdNone) + sharedTimerFiredFunction(); + } else if (message == WM_USER) { + if (timerID = TimerIdManual) { + sharedTimerFiredFunction(); + PostMessage(hWnd, WM_USER, 0, 0); + } + } else + return DefWindowProc(hWnd, message, wParam, lParam); + + return 0; +} + +static void initializeOffScreenTimerWindow() +{ + if (timerWindowHandle) + return; + + WNDCLASS wcex = {0}; + wcex.lpfnWndProc = TimerWindowWndProc; + wcex.hInstance = WebCore::instanceHandle(); + wcex.lpszClassName = kTimerWindowClassName; + RegisterClass(&wcex); + + timerWindowHandle = CreateWindow(kTimerWindowClassName, 0, 0, + CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, 0, 0, WebCore::instanceHandle(), 0); +} + +void setSharedTimerFiredFunction(void (*f)()) +{ + sharedTimerFiredFunction = f; +} + +#define USER_TIMER_MAXIMUM 0x7FFFFFFF +#define USER_TIMER_MINIMUM 0x0000000A + +void setSharedTimerFireTime(double fireTime) +{ + ASSERT(sharedTimerFiredFunction); + + double interval = (fireTime - currentTime()) * 1000.; + unsigned intervalInMS = interval < USER_TIMER_MINIMUM + ? USER_TIMER_MINIMUM + : interval > USER_TIMER_MAXIMUM + ? USER_TIMER_MAXIMUM + : static_cast<unsigned>(interval); + + if (timerID == TimerIdAuto) { + KillTimer(timerWindowHandle, TimerIdAuto); + timerID = TimerIdNone; + } + + initializeOffScreenTimerWindow(); + if (SetTimer(timerWindowHandle, TimerIdAuto, intervalInMS, 0)) + timerID = TimerIdAuto; + else if (timerID != TimerIdManual) + PostMessage(timerWindowHandle, WM_USER, 0, 0); +} + +void stopSharedTimer() +{ + if (timerID == TimerIdAuto) + KillTimer(timerWindowHandle, TimerIdAuto); + + timerID = TimerIdNone; +} + +} // namespace WebCore |