WorkQueueItemQt.h revision f05b935882198ccf7d81675736e3aeb089c5113a 
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 LoadHTMLStringItem : public WorkQueueItem {
68public:
69    LoadHTMLStringItem(const QString& content, const QString &baseURL, QWebPage *page)
70        : WorkQueueItem(page)
71        , m_content(content)
72        , m_baseURL(baseURL)
73    {
74    }
75
76private:
77    virtual bool invoke() const;
78
79    QString m_content;
80    QString m_baseURL;
81};
82
83class ReloadItem : public WorkQueueItem {
84public:
85    ReloadItem(QWebPage *page)
86        : WorkQueueItem(page)
87    {
88    }
89    virtual bool invoke() const;
90};
91
92class ScriptItem : public WorkQueueItem {
93public:
94    ScriptItem(const QString &script, QWebPage *page)
95        : WorkQueueItem(page)
96        , m_script(script)
97    {
98    }
99
100    QString script() const { return m_script; }
101
102    virtual bool invoke() const;
103
104private:
105    QString m_script;
106};
107
108class LoadingScriptItem : public ScriptItem {
109public:
110    LoadingScriptItem(const QString& script, QWebPage* page)
111        : ScriptItem(script, page)
112    {
113    }
114
115    virtual bool invoke() const { return ScriptItem::invoke(); }
116};
117
118class NonLoadingScriptItem : public ScriptItem {
119public:
120    NonLoadingScriptItem(const QString& script, QWebPage* page)
121        : ScriptItem(script, page)
122    {
123    }
124
125    virtual bool invoke() const { ScriptItem::invoke(); return false; }
126};
127
128
129class BackForwardItem : public WorkQueueItem {
130public:
131    virtual bool invoke() const;
132
133protected:
134    BackForwardItem(int howFar, QWebPage *page)
135        : WorkQueueItem(page)
136        , m_howFar(howFar)
137    {
138    }
139
140    int m_howFar;
141};
142
143class BackItem : public BackForwardItem {
144public:
145    BackItem(unsigned howFar, QWebPage *page)
146        : BackForwardItem(-howFar, page)
147    {
148    }
149};
150
151class ForwardItem : public BackForwardItem {
152public:
153    ForwardItem(unsigned howFar, QWebPage *page)
154        : BackForwardItem(howFar, page)
155    {
156    }
157};
158
159#endif // !defined(WorkQueueItemQt_h)
160