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      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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "Task.h"
     33 
     34 #include "WebKit.h"
     35 #include "WebKitClient.h"
     36 
     37 WebTask::WebTask(TaskList* list): m_taskList(list) { m_taskList->registerTask(this); }
     38 WebTask::~WebTask()
     39 {
     40     if (m_taskList)
     41         m_taskList->unregisterTask(this);
     42 }
     43 
     44 void TaskList::unregisterTask(WebTask* task)
     45 {
     46     size_t index = m_tasks.find(task);
     47     if (index != notFound)
     48         m_tasks.remove(index);
     49 }
     50 
     51 void TaskList::revokeAll()
     52 {
     53     while (!m_tasks.isEmpty())
     54         m_tasks[0]->cancel();
     55 }
     56 
     57 static void invokeTask(void* context)
     58 {
     59     WebTask* task = static_cast<WebTask*>(context);
     60     task->run();
     61     delete task;
     62 }
     63 
     64 void postTask(WebTask* task)
     65 {
     66     WebKit::webKitClient()->callOnMainThread(invokeTask, static_cast<void*>(task));
     67 }
     68 
     69 void postDelayedTask(WebTask* task, int64_t ms)
     70 {
     71     webkit_support::PostDelayedTask(task, ms);
     72 }
     73 
     74 
     75