1 /**************************************************************************
2 * Otter Browser: Web browser controlled by the user, not vice-versa.
3 * Copyright (C) 2013 - 2018 Michal Dutkiewicz aka Emdek <michal@emdek.pl>
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 **************************************************************************/
19
20 #include "TextLabelWidget.h"
21 #include "../core/ThemesManager.h"
22
23 #include <QtGui/QClipboard>
24 #include <QtGui/QDesktopServices>
25 #include <QtGui/QMouseEvent>
26 #include <QtWidgets/QApplication>
27 #include <QtWidgets/QMenu>
28 #include <QtWidgets/QStyle>
29 #include <QtWidgets/QStyleOptionFrame>
30
31 namespace Otter
32 {
33
TextLabelWidget(QWidget * parent)34 TextLabelWidget::TextLabelWidget(QWidget *parent) : QLineEdit(parent),
35 m_isEmpty(true)
36 {
37 updateStyle();
38 setFrame(false);
39 setReadOnly(true);
40 setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
41 setStyleSheet(QLatin1String("QLineEdit {background:transparent;}"));
42 QLineEdit::setText(tr("<empty>"));
43 }
44
mousePressEvent(QMouseEvent * event)45 void TextLabelWidget::mousePressEvent(QMouseEvent *event)
46 {
47 QLineEdit::mousePressEvent(event);
48
49 m_dragStartPosition = event->pos();
50 }
51
mouseReleaseEvent(QMouseEvent * event)52 void TextLabelWidget::mouseReleaseEvent(QMouseEvent *event)
53 {
54 QLineEdit::mouseReleaseEvent(event);
55
56 if (m_url.isValid() && (event->pos() - m_dragStartPosition).manhattanLength() < QApplication::startDragDistance())
57 {
58 QDesktopServices::openUrl(m_url);
59 }
60 }
61
contextMenuEvent(QContextMenuEvent * event)62 void TextLabelWidget::contextMenuEvent(QContextMenuEvent *event)
63 {
64 if (m_isEmpty)
65 {
66 return;
67 }
68
69 QMenu menu(this);
70 menu.addAction(ThemesManager::createIcon(QLatin1String("edit-copy")), tr("Copy"), this, &TextLabelWidget::copy, QKeySequence(QKeySequence::Copy))->setEnabled(hasSelectedText());
71
72 if (m_url.isValid())
73 {
74 menu.addAction(tr("Copy Link Location"), this, &TextLabelWidget::copyUrl);
75 }
76
77 menu.addSeparator();
78 menu.addAction(ThemesManager::createIcon(QLatin1String("edit-select-all")), tr("Select All"), this, &TextLabelWidget::selectAll, QKeySequence(QKeySequence::SelectAll))->setEnabled(!text().isEmpty());
79 menu.exec(event->globalPos());
80 }
81
copyUrl()82 void TextLabelWidget::copyUrl()
83 {
84 QGuiApplication::clipboard()->setText(m_url.toString(QUrl::EncodeReserved | QUrl::EncodeSpaces));
85 }
86
clear()87 void TextLabelWidget::clear()
88 {
89 QLineEdit::setText(tr("<empty>"));
90
91 m_url.clear();
92 m_isEmpty = true;
93
94 updateStyle();
95 }
96
updateStyle()97 void TextLabelWidget::updateStyle()
98 {
99 QFont font(this->font());
100 font.setUnderline(m_url.isValid() && style()->styleHint(QStyle::SH_UnderlineShortcut) > 0);
101
102 QPalette palette(this->palette());
103
104 if (m_isEmpty)
105 {
106 palette.setColor(QPalette::Text, QGuiApplication::palette().color(QPalette::Disabled, QPalette::WindowText));
107 }
108 else
109 {
110 palette.setColor(QPalette::Text, QGuiApplication::palette().color(m_url.isValid() ? QPalette::Link : QPalette::WindowText));
111 }
112
113 setCursor(m_url.isValid() ? Qt::PointingHandCursor : Qt::ArrowCursor);
114 setFont(font);
115 setPalette(palette);
116 }
117
setText(const QString & text)118 void TextLabelWidget::setText(const QString &text)
119 {
120 if (text != this->text())
121 {
122 if (text.isEmpty() != m_isEmpty)
123 {
124 m_isEmpty = text.isEmpty();
125
126 updateStyle();
127 }
128
129 QLineEdit::setText(m_isEmpty ? tr("<empty>") : text);
130 setCursorPosition(0);
131 updateGeometry();
132 }
133
134 setReadOnly(true);
135 }
136
setUrl(const QUrl & url)137 void TextLabelWidget::setUrl(const QUrl &url)
138 {
139 m_url = url;
140 m_isEmpty = url.isEmpty();
141
142 updateStyle();
143 }
144
sizeHint() const145 QSize TextLabelWidget::sizeHint() const
146 {
147 const QMargins margins(textMargins());
148 QSize size(fontMetrics().size(Qt::TextSingleLine, text()));
149 size.setWidth(size.width() + margins.left() + margins.right() + 6);
150 size.setHeight(size.height() + margins.top() + margins.bottom());
151
152 QStyleOptionFrame option;
153
154 initStyleOption(&option);
155
156 return style()->sizeFromContents(QStyle::CT_LineEdit, &option, size, this);
157 }
158
event(QEvent * event)159 bool TextLabelWidget::event(QEvent *event)
160 {
161 const bool result(QLineEdit::event(event));
162
163 switch (event->type())
164 {
165 case QEvent::ApplicationPaletteChange:
166 case QEvent::StyleChange:
167 updateStyle();
168
169 break;
170 case QEvent::LanguageChange:
171 if (m_isEmpty)
172 {
173 QLineEdit::setText(tr("<empty>"));
174 }
175
176 break;
177 default:
178 break;
179 }
180
181 return result;
182 }
183
184 }
185