1/*
2 * Copyright (C) 2012 Intel Corporation. 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 WorkQueueManager_h
27#define WorkQueueManager_h
28
29#include <wtf/Deque.h>
30#include <wtf/text/WTFString.h>
31
32namespace WTR {
33
34class WorkQueueManager {
35 WTF_MAKE_NONCOPYABLE(WorkQueueManager);
36public:
37 WorkQueueManager();
38 ~WorkQueueManager();
39
40 bool isWorkQueueEmpty() const { return m_workQueue.isEmpty(); }
41 void clearWorkQueue();
42 bool processWorkQueue(); // Returns 'true' if queue is processed (no new loading is started), returns 'false' otherwise.
43
44 void queueLoad(const String& url, const String& target, bool shouldOpenExternalURLs);
45 void queueLoadHTMLString(const String& content, const String& baseURL, const String& unreachableURL);
46 void queueBackNavigation(unsigned howFarBackward);
47 void queueForwardNavigation(unsigned howFarForward);
48 void queueReload();
49 void queueLoadingScript(const String& script);
50 void queueNonLoadingScript(const String& script);
51
52private:
53 typedef Deque<std::unique_ptr<class WorkQueueItem>> WorkQueue;
54
55 void enqueue(WorkQueueItem*); // Adopts pointer.
56
57 WorkQueue m_workQueue;
58 bool m_processing;
59};
60
61} // namespace WTR
62
63#endif // WorkQueueManager_h
64