aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/help/helpviewer.h
blob: 0b713752418e43d238fb334949507193d9585184 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#ifndef HELPVIEWER_H
#define HELPVIEWER_H

#include <find/ifindsupport.h>

#include <qglobal.h>
#include <QString>
#include <QUrl>
#include <QVariant>

#include <QAction>
#include <QFont>

#if defined(QT_NO_WEBKIT)
#include <QTextBrowser>
#else
#include <QWebPage>
#include <QWebView>
#endif

namespace Help {
namespace Internal {

#if !defined(QT_NO_WEBKIT)
class HelpViewer : public QWebView
#else
class HelpViewer : public QTextBrowser
#endif
{
    Q_OBJECT
    class HelpViewerPrivate;

public:
    explicit HelpViewer(qreal zoom, QWidget *parent = 0);
    ~HelpViewer();

    QFont viewerFont() const;
    void setViewerFont(const QFont &font);

    void scaleUp();
    void scaleDown();

    void resetScale();
    qreal scale() const;

    QString title() const;
    void setTitle(const QString &title);

    QUrl source() const;
    void setSource(const QUrl &url);

    QString selectedText() const;
    bool isForwardAvailable() const;
    bool isBackwardAvailable() const;

    bool findText(const QString &text, Find::FindFlags flags,
        bool incremental, bool fromSearch, bool *wrapped = 0);

    static const QString NsNokia;
    static const QString NsTrolltech;
    static const QString AboutBlankPage;
    static const QString PageNotFoundMessage;

    static bool isLocalUrl(const QUrl &url);
    static bool canOpenPage(const QString &url);
    static QString mimeFromUrl(const QUrl &url);
    static bool launchWithExternalApp(const QUrl &url);

public slots:
    void copy();
    void home();
    void stop();

    void forward();
    void backward();

signals:
    void titleChanged();
    void printRequested();
    void openFindToolBar();

#if !defined(QT_NO_WEBKIT)
    void sourceChanged(const QUrl &);
    void forwardAvailable(bool enabled);
    void backwardAvailable(bool enabled);
#else
    void loadFinished(bool finished);
#endif

protected:
    void keyPressEvent(QKeyEvent *e);
    void wheelEvent(QWheelEvent *event);
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);

private slots:
    void actionChanged();
    void slotLoadStarted();
    void slotLoadFinished(bool ok);
#if !defined(QT_NO_WEBKIT)
    void slotNetworkReplyFinished(QNetworkReply *reply);
#endif

private:
    bool eventFilter(QObject *obj, QEvent *event);
    void contextMenuEvent(QContextMenuEvent *event);
    QVariant loadResource(int type, const QUrl &name);
    bool handleForwardBackwardMouseButtons(QMouseEvent *e);

private:
    HelpViewerPrivate *d;
};

#ifndef QT_NO_WEBKIT
class HelpPage : public QWebPage
{
    Q_OBJECT
public:
    HelpPage(QObject *parent);

protected:
    virtual QWebPage *createWindow(QWebPage::WebWindowType);
    virtual void triggerAction(WebAction action, bool checked = false);

    virtual bool acceptNavigationRequest(QWebFrame *frame,
        const QNetworkRequest &request, NavigationType type);

private slots:
    void onHandleUnsupportedContent(QNetworkReply *reply);

private:
    QUrl m_loadingUrl;
    bool closeNewTabIfNeeded;

    friend class Help::Internal::HelpViewer;
    Qt::MouseButtons m_pressedButtons;
    Qt::KeyboardModifiers m_keyboardModifiers;
};
#endif // QT_NO_WEBKIT

}   // namespace Internal
}   // namespace Help

#endif  // HELPVIEWER_H