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      1 /*
      2  * Copyright (C) 2007 Kevin Ollivier <kevino (at) theolliviers.com>
      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 #include "config.h"
     27 
     28 #include "SharedTimer.h"
     29 #include "Widget.h"
     30 
     31 #include <wtf/Assertions.h>
     32 #include <wtf/CurrentTime.h>
     33 #include <stdio.h>
     34 
     35 #include "wx/defs.h"
     36 #include "wx/timer.h"
     37 
     38 namespace WebCore {
     39 
     40 static void (*sharedTimerFiredFunction)();
     41 
     42 class WebKitTimer: public wxTimer
     43 {
     44     public:
     45         WebKitTimer();
     46         ~WebKitTimer();
     47         virtual void Notify();
     48 };
     49 
     50 WebKitTimer::WebKitTimer()
     51 {
     52     wxTimer::wxTimer();
     53 }
     54 
     55 WebKitTimer::~WebKitTimer()
     56 {
     57 }
     58 
     59 void WebKitTimer::Notify()
     60 {
     61     sharedTimerFiredFunction();
     62 }
     63 
     64 static WebKitTimer* wkTimer;
     65 
     66 void setSharedTimerFiredFunction(void (*f)())
     67 {
     68     sharedTimerFiredFunction = f;
     69 }
     70 
     71 void setSharedTimerFireTime(double fireTime)
     72 {
     73     ASSERT(sharedTimerFiredFunction);
     74 
     75     double interval = fireTime - currentTime();
     76 
     77     if (!wkTimer)
     78         wkTimer = new WebKitTimer();
     79 
     80     int intervalInMS = interval * 1000;
     81 
     82     // sanity check
     83     if (intervalInMS < 1)
     84         intervalInMS = 1;
     85 
     86     wkTimer->Start(intervalInMS, wxTIMER_ONE_SHOT);
     87 }
     88 
     89 void stopSharedTimer()
     90 {
     91     if (wkTimer)
     92         wkTimer->Stop();
     93 }
     94 
     95 }
     96