1/*
2 * Copyright (C) 2007 Apple Inc.  All rights reserved.
3 * Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
15 *     its contributors may be used to endorse or promote products derived
16 *     from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef WorkQueueItemQt_h
31#define WorkQueueItemQt_h
32
33#include <QPointer>
34#include <QString>
35#include <qwebframe.h>
36#include <qwebpage.h>
37
38class WorkQueueItem {
39public:
40    WorkQueueItem(QWebPage *page) : m_webPage(page) {}
41    virtual ~WorkQueueItem() { }
42    virtual bool invoke() const = 0;
43
44protected:
45    QPointer<QWebPage> m_webPage;
46};
47
48class LoadItem : public WorkQueueItem {
49public:
50    LoadItem(const QString &url, const QString &target, QWebPage *page)
51        : WorkQueueItem(page)
52        , m_url(url)
53        , m_target(target)
54    {
55    }
56
57    QString url() const { return m_url; }
58    QString target() const { return m_target; }
59
60    virtual bool invoke() const;
61
62private:
63    QString m_url;
64    QString m_target;
65};
66
67class ReloadItem : public WorkQueueItem {
68public:
69    ReloadItem(QWebPage *page)
70        : WorkQueueItem(page)
71    {
72    }
73    virtual bool invoke() const;
74};
75
76class ScriptItem : public WorkQueueItem {
77public:
78    ScriptItem(const QString &script, QWebPage *page)
79        : WorkQueueItem(page)
80        , m_script(script)
81    {
82    }
83
84    QString script() const { return m_script; }
85
86    virtual bool invoke() const;
87
88private:
89    QString m_script;
90};
91
92class LoadingScriptItem : public ScriptItem {
93public:
94    LoadingScriptItem(const QString& script, QWebPage* page)
95        : ScriptItem(script, page)
96    {
97    }
98
99    virtual bool invoke() const { return ScriptItem::invoke(); }
100};
101
102class NonLoadingScriptItem : public ScriptItem {
103public:
104    NonLoadingScriptItem(const QString& script, QWebPage* page)
105        : ScriptItem(script, page)
106    {
107    }
108
109    virtual bool invoke() const { ScriptItem::invoke(); return false; }
110};
111
112
113class BackForwardItem : public WorkQueueItem {
114public:
115    virtual bool invoke() const;
116
117protected:
118    BackForwardItem(int howFar, QWebPage *page)
119        : WorkQueueItem(page)
120        , m_howFar(howFar)
121    {
122    }
123
124    int m_howFar;
125};
126
127class BackItem : public BackForwardItem {
128public:
129    BackItem(unsigned howFar, QWebPage *page)
130        : BackForwardItem(-howFar, page)
131    {
132    }
133};
134
135class ForwardItem : public BackForwardItem {
136public:
137    ForwardItem(unsigned howFar, QWebPage *page)
138        : BackForwardItem(howFar, page)
139    {
140    }
141};
142
143#endif // !defined(WorkQueueItemQt_h)
144