--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/browser/tabwidget.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,833 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "tabwidget.h"
+
+#include "browserapplication.h"
+#include "browsermainwindow.h"
+#include "history.h"
+#include "urllineedit.h"
+#include "webview.h"
+
+#include <QtGui/QClipboard>
+#include <QtGui/QCompleter>
+#include <QtGui/QListView>
+#include <QtGui/QMenu>
+#include <QtGui/QMessageBox>
+#include <QtGui/QMouseEvent>
+#include <QtGui/QStackedWidget>
+#include <QtGui/QStyle>
+#include <QtGui/QToolButton>
+
+#include <QtCore/QDebug>
+
+TabBar::TabBar(QWidget *parent)
+ : QTabBar(parent)
+{
+ setContextMenuPolicy(Qt::CustomContextMenu);
+ setAcceptDrops(true);
+ connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
+ this, SLOT(contextMenuRequested(const QPoint &)));
+
+ QString alt = QLatin1String("Alt+%1");
+ for (int i = 1; i <= 10; ++i) {
+ int key = i;
+ if (key == 10)
+ key = 0;
+ QShortcut *shortCut = new QShortcut(alt.arg(key), this);
+ m_tabShortcuts.append(shortCut);
+ connect(shortCut, SIGNAL(activated()), this, SLOT(selectTabAction()));
+ }
+ setTabsClosable(true);
+ connect(this, SIGNAL(tabCloseRequested(int)),
+ this, SIGNAL(closeTab(int)));
+ setSelectionBehaviorOnRemove(QTabBar::SelectPreviousTab);
+ setMovable(true);
+}
+
+void TabBar::selectTabAction()
+{
+ if (QShortcut *shortCut = qobject_cast<QShortcut*>(sender())) {
+ int index = m_tabShortcuts.indexOf(shortCut);
+ if (index == 0)
+ index = 10;
+ setCurrentIndex(index);
+ }
+}
+
+void TabBar::contextMenuRequested(const QPoint &position)
+{
+ QMenu menu;
+ menu.addAction(tr("New &Tab"), this, SIGNAL(newTab()), QKeySequence::AddTab);
+ int index = tabAt(position);
+ if (-1 != index) {
+ QAction *action = menu.addAction(tr("Clone Tab"),
+ this, SLOT(cloneTab()));
+ action->setData(index);
+
+ menu.addSeparator();
+
+ action = menu.addAction(tr("&Close Tab"),
+ this, SLOT(closeTab()), QKeySequence::Close);
+ action->setData(index);
+
+ action = menu.addAction(tr("Close &Other Tabs"),
+ this, SLOT(closeOtherTabs()));
+ action->setData(index);
+
+ menu.addSeparator();
+
+ action = menu.addAction(tr("Reload Tab"),
+ this, SLOT(reloadTab()), QKeySequence::Refresh);
+ action->setData(index);
+ } else {
+ menu.addSeparator();
+ }
+ menu.addAction(tr("Reload All Tabs"), this, SIGNAL(reloadAllTabs()));
+ menu.exec(QCursor::pos());
+}
+
+void TabBar::cloneTab()
+{
+ if (QAction *action = qobject_cast<QAction*>(sender())) {
+ int index = action->data().toInt();
+ emit cloneTab(index);
+ }
+}
+
+void TabBar::closeTab()
+{
+ if (QAction *action = qobject_cast<QAction*>(sender())) {
+ int index = action->data().toInt();
+ emit closeTab(index);
+ }
+}
+
+void TabBar::closeOtherTabs()
+{
+ if (QAction *action = qobject_cast<QAction*>(sender())) {
+ int index = action->data().toInt();
+ emit closeOtherTabs(index);
+ }
+}
+
+void TabBar::mousePressEvent(QMouseEvent *event)
+{
+ if (event->button() == Qt::LeftButton)
+ m_dragStartPos = event->pos();
+ QTabBar::mousePressEvent(event);
+}
+
+void TabBar::mouseMoveEvent(QMouseEvent *event)
+{
+ if (event->buttons() == Qt::LeftButton) {
+ int diffX = event->pos().x() - m_dragStartPos.x();
+ int diffY = event->pos().y() - m_dragStartPos.y();
+ if ((event->pos() - m_dragStartPos).manhattanLength() > QApplication::startDragDistance()
+ && diffX < 3 && diffX > -3
+ && diffY < -10) {
+ QDrag *drag = new QDrag(this);
+ QMimeData *mimeData = new QMimeData;
+ QList<QUrl> urls;
+ int index = tabAt(event->pos());
+ QUrl url = tabData(index).toUrl();
+ urls.append(url);
+ mimeData->setUrls(urls);
+ mimeData->setText(tabText(index));
+ mimeData->setData(QLatin1String("action"), "tab-reordering");
+ drag->setMimeData(mimeData);
+ drag->exec();
+ }
+ }
+ QTabBar::mouseMoveEvent(event);
+}
+
+// When index is -1 index chooses the current tab
+void TabWidget::reloadTab(int index)
+{
+ if (index < 0)
+ index = currentIndex();
+ if (index < 0 || index >= count())
+ return;
+
+ QWidget *widget = this->widget(index);
+ if (WebView *tab = qobject_cast<WebView*>(widget))
+ tab->reload();
+}
+
+void TabBar::reloadTab()
+{
+ if (QAction *action = qobject_cast<QAction*>(sender())) {
+ int index = action->data().toInt();
+ emit reloadTab(index);
+ }
+}
+
+TabWidget::TabWidget(QWidget *parent)
+ : QTabWidget(parent)
+ , m_recentlyClosedTabsAction(0)
+ , m_newTabAction(0)
+ , m_closeTabAction(0)
+ , m_nextTabAction(0)
+ , m_previousTabAction(0)
+ , m_recentlyClosedTabsMenu(0)
+ , m_lineEditCompleter(0)
+ , m_lineEdits(0)
+ , m_tabBar(new TabBar(this))
+{
+ setElideMode(Qt::ElideRight);
+
+ connect(m_tabBar, SIGNAL(newTab()), this, SLOT(newTab()));
+ connect(m_tabBar, SIGNAL(closeTab(int)), this, SLOT(closeTab(int)));
+ connect(m_tabBar, SIGNAL(cloneTab(int)), this, SLOT(cloneTab(int)));
+ connect(m_tabBar, SIGNAL(closeOtherTabs(int)), this, SLOT(closeOtherTabs(int)));
+ connect(m_tabBar, SIGNAL(reloadTab(int)), this, SLOT(reloadTab(int)));
+ connect(m_tabBar, SIGNAL(reloadAllTabs()), this, SLOT(reloadAllTabs()));
+ connect(m_tabBar, SIGNAL(tabMoved(int, int)), this, SLOT(moveTab(int, int)));
+ setTabBar(m_tabBar);
+ setDocumentMode(true);
+
+ // Actions
+ m_newTabAction = new QAction(QIcon(QLatin1String(":addtab.png")), tr("New &Tab"), this);
+ m_newTabAction->setShortcuts(QKeySequence::AddTab);
+ m_newTabAction->setIconVisibleInMenu(false);
+ connect(m_newTabAction, SIGNAL(triggered()), this, SLOT(newTab()));
+
+ m_closeTabAction = new QAction(QIcon(QLatin1String(":closetab.png")), tr("&Close Tab"), this);
+ m_closeTabAction->setShortcuts(QKeySequence::Close);
+ m_closeTabAction->setIconVisibleInMenu(false);
+ connect(m_closeTabAction, SIGNAL(triggered()), this, SLOT(closeTab()));
+
+ m_nextTabAction = new QAction(tr("Show Next Tab"), this);
+ QList<QKeySequence> shortcuts;
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_BraceRight));
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_PageDown));
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_BracketRight));
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_Less));
+ m_nextTabAction->setShortcuts(shortcuts);
+ connect(m_nextTabAction, SIGNAL(triggered()), this, SLOT(nextTab()));
+
+ m_previousTabAction = new QAction(tr("Show Previous Tab"), this);
+ shortcuts.clear();
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_BraceLeft));
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_PageUp));
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_BracketLeft));
+ shortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_Greater));
+ m_previousTabAction->setShortcuts(shortcuts);
+ connect(m_previousTabAction, SIGNAL(triggered()), this, SLOT(previousTab()));
+
+ m_recentlyClosedTabsMenu = new QMenu(this);
+ connect(m_recentlyClosedTabsMenu, SIGNAL(aboutToShow()),
+ this, SLOT(aboutToShowRecentTabsMenu()));
+ connect(m_recentlyClosedTabsMenu, SIGNAL(triggered(QAction *)),
+ this, SLOT(aboutToShowRecentTriggeredAction(QAction *)));
+ m_recentlyClosedTabsAction = new QAction(tr("Recently Closed Tabs"), this);
+ m_recentlyClosedTabsAction->setMenu(m_recentlyClosedTabsMenu);
+ m_recentlyClosedTabsAction->setEnabled(false);
+
+ connect(this, SIGNAL(currentChanged(int)),
+ this, SLOT(currentChanged(int)));
+
+ m_lineEdits = new QStackedWidget(this);
+}
+
+void TabWidget::clear()
+{
+ // clear the recently closed tabs
+ m_recentlyClosedTabs.clear();
+ // clear the line edit history
+ for (int i = 0; i < m_lineEdits->count(); ++i) {
+ QLineEdit *qLineEdit = lineEdit(i);
+ qLineEdit->setText(qLineEdit->text());
+ }
+}
+
+void TabWidget::moveTab(int fromIndex, int toIndex)
+{
+ QWidget *lineEdit = m_lineEdits->widget(fromIndex);
+ m_lineEdits->removeWidget(lineEdit);
+ m_lineEdits->insertWidget(toIndex, lineEdit);
+}
+
+void TabWidget::addWebAction(QAction *action, QWebPage::WebAction webAction)
+{
+ if (!action)
+ return;
+ m_actions.append(new WebActionMapper(action, webAction, this));
+}
+
+void TabWidget::currentChanged(int index)
+{
+ WebView *webView = this->webView(index);
+ if (!webView)
+ return;
+
+ Q_ASSERT(m_lineEdits->count() == count());
+
+ WebView *oldWebView = this->webView(m_lineEdits->currentIndex());
+ if (oldWebView) {
+ disconnect(oldWebView, SIGNAL(statusBarMessage(const QString&)),
+ this, SIGNAL(showStatusBarMessage(const QString&)));
+ disconnect(oldWebView->page(), SIGNAL(linkHovered(const QString&, const QString&, const QString&)),
+ this, SIGNAL(linkHovered(const QString&)));
+ disconnect(oldWebView, SIGNAL(loadProgress(int)),
+ this, SIGNAL(loadProgress(int)));
+ }
+
+ connect(webView, SIGNAL(statusBarMessage(const QString&)),
+ this, SIGNAL(showStatusBarMessage(const QString&)));
+ connect(webView->page(), SIGNAL(linkHovered(const QString&, const QString&, const QString&)),
+ this, SIGNAL(linkHovered(const QString&)));
+ connect(webView, SIGNAL(loadProgress(int)),
+ this, SIGNAL(loadProgress(int)));
+
+ for (int i = 0; i < m_actions.count(); ++i) {
+ WebActionMapper *mapper = m_actions[i];
+ mapper->updateCurrent(webView->page());
+ }
+ emit setCurrentTitle(webView->title());
+ m_lineEdits->setCurrentIndex(index);
+ emit loadProgress(webView->progress());
+ emit showStatusBarMessage(webView->lastStatusBarText());
+ if (webView->url().isEmpty())
+ m_lineEdits->currentWidget()->setFocus();
+ else
+ webView->setFocus();
+}
+
+QAction *TabWidget::newTabAction() const
+{
+ return m_newTabAction;
+}
+
+QAction *TabWidget::closeTabAction() const
+{
+ return m_closeTabAction;
+}
+
+QAction *TabWidget::recentlyClosedTabsAction() const
+{
+ return m_recentlyClosedTabsAction;
+}
+
+QAction *TabWidget::nextTabAction() const
+{
+ return m_nextTabAction;
+}
+
+QAction *TabWidget::previousTabAction() const
+{
+ return m_previousTabAction;
+}
+
+QWidget *TabWidget::lineEditStack() const
+{
+ return m_lineEdits;
+}
+
+QLineEdit *TabWidget::currentLineEdit() const
+{
+ return lineEdit(m_lineEdits->currentIndex());
+}
+
+WebView *TabWidget::currentWebView() const
+{
+ return webView(currentIndex());
+}
+
+QLineEdit *TabWidget::lineEdit(int index) const
+{
+ UrlLineEdit *urlLineEdit = qobject_cast<UrlLineEdit*>(m_lineEdits->widget(index));
+ if (urlLineEdit)
+ return urlLineEdit->lineEdit();
+ return 0;
+}
+
+WebView *TabWidget::webView(int index) const
+{
+ QWidget *widget = this->widget(index);
+ if (WebView *webView = qobject_cast<WebView*>(widget)) {
+ return webView;
+ } else {
+ // optimization to delay creating the first webview
+ if (count() == 1) {
+ TabWidget *that = const_cast<TabWidget*>(this);
+ that->setUpdatesEnabled(false);
+ that->newTab();
+ that->closeTab(0);
+ that->setUpdatesEnabled(true);
+ return currentWebView();
+ }
+ }
+ return 0;
+}
+
+int TabWidget::webViewIndex(WebView *webView) const
+{
+ int index = indexOf(webView);
+ return index;
+}
+
+WebView *TabWidget::newTab(bool makeCurrent)
+{
+ // line edit
+ UrlLineEdit *urlLineEdit = new UrlLineEdit;
+ QLineEdit *lineEdit = urlLineEdit->lineEdit();
+ if (!m_lineEditCompleter && count() > 0) {
+ HistoryCompletionModel *completionModel = new HistoryCompletionModel(this);
+ completionModel->setSourceModel(BrowserApplication::historyManager()->historyFilterModel());
+ m_lineEditCompleter = new QCompleter(completionModel, this);
+ // Should this be in Qt by default?
+ QAbstractItemView *popup = m_lineEditCompleter->popup();
+ QListView *listView = qobject_cast<QListView*>(popup);
+ if (listView)
+ listView->setUniformItemSizes(true);
+ }
+ lineEdit->setCompleter(m_lineEditCompleter);
+ connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(lineEditReturnPressed()));
+ m_lineEdits->addWidget(urlLineEdit);
+ m_lineEdits->setSizePolicy(lineEdit->sizePolicy());
+
+ // optimization to delay creating the more expensive WebView, history, etc
+ if (count() == 0) {
+ QWidget *emptyWidget = new QWidget;
+ QPalette p = emptyWidget->palette();
+ p.setColor(QPalette::Window, palette().color(QPalette::Base));
+ emptyWidget->setPalette(p);
+ emptyWidget->setAutoFillBackground(true);
+ disconnect(this, SIGNAL(currentChanged(int)),
+ this, SLOT(currentChanged(int)));
+ addTab(emptyWidget, tr("(Untitled)"));
+ connect(this, SIGNAL(currentChanged(int)),
+ this, SLOT(currentChanged(int)));
+ return 0;
+ }
+
+ // webview
+ WebView *webView = new WebView;
+ urlLineEdit->setWebView(webView);
+ connect(webView, SIGNAL(loadStarted()),
+ this, SLOT(webViewLoadStarted()));
+ connect(webView, SIGNAL(loadFinished(bool)),
+ this, SLOT(webViewIconChanged()));
+ connect(webView, SIGNAL(iconChanged()),
+ this, SLOT(webViewIconChanged()));
+ connect(webView, SIGNAL(titleChanged(const QString &)),
+ this, SLOT(webViewTitleChanged(const QString &)));
+ connect(webView, SIGNAL(urlChanged(const QUrl &)),
+ this, SLOT(webViewUrlChanged(const QUrl &)));
+ connect(webView->page(), SIGNAL(windowCloseRequested()),
+ this, SLOT(windowCloseRequested()));
+ connect(webView->page(), SIGNAL(geometryChangeRequested(const QRect &)),
+ this, SIGNAL(geometryChangeRequested(const QRect &)));
+ connect(webView->page(), SIGNAL(printRequested(QWebFrame *)),
+ this, SIGNAL(printRequested(QWebFrame *)));
+ connect(webView->page(), SIGNAL(menuBarVisibilityChangeRequested(bool)),
+ this, SIGNAL(menuBarVisibilityChangeRequested(bool)));
+ connect(webView->page(), SIGNAL(statusBarVisibilityChangeRequested(bool)),
+ this, SIGNAL(statusBarVisibilityChangeRequested(bool)));
+ connect(webView->page(), SIGNAL(toolBarVisibilityChangeRequested(bool)),
+ this, SIGNAL(toolBarVisibilityChangeRequested(bool)));
+ addTab(webView, tr("(Untitled)"));
+ if (makeCurrent)
+ setCurrentWidget(webView);
+
+ // webview actions
+ for (int i = 0; i < m_actions.count(); ++i) {
+ WebActionMapper *mapper = m_actions[i];
+ mapper->addChild(webView->page()->action(mapper->webAction()));
+ }
+
+ if (count() == 1)
+ currentChanged(currentIndex());
+ emit tabsChanged();
+ return webView;
+}
+
+void TabWidget::reloadAllTabs()
+{
+ for (int i = 0; i < count(); ++i) {
+ QWidget *tabWidget = widget(i);
+ if (WebView *tab = qobject_cast<WebView*>(tabWidget)) {
+ tab->reload();
+ }
+ }
+}
+
+void TabWidget::lineEditReturnPressed()
+{
+ if (QLineEdit *lineEdit = qobject_cast<QLineEdit*>(sender())) {
+ emit loadPage(lineEdit->text());
+ if (m_lineEdits->currentWidget() == lineEdit)
+ currentWebView()->setFocus();
+ }
+}
+
+void TabWidget::windowCloseRequested()
+{
+ WebPage *webPage = qobject_cast<WebPage*>(sender());
+ WebView *webView = qobject_cast<WebView*>(webPage->view());
+ int index = webViewIndex(webView);
+ if (index >= 0) {
+ if (count() == 1)
+ webView->webPage()->mainWindow()->close();
+ else
+ closeTab(index);
+ }
+}
+
+void TabWidget::closeOtherTabs(int index)
+{
+ if (-1 == index)
+ return;
+ for (int i = count() - 1; i > index; --i)
+ closeTab(i);
+ for (int i = index - 1; i >= 0; --i)
+ closeTab(i);
+}
+
+// When index is -1 index chooses the current tab
+void TabWidget::cloneTab(int index)
+{
+ if (index < 0)
+ index = currentIndex();
+ if (index < 0 || index >= count())
+ return;
+ WebView *tab = newTab(false);
+ tab->setUrl(webView(index)->url());
+}
+
+// When index is -1 index chooses the current tab
+void TabWidget::closeTab(int index)
+{
+ if (index < 0)
+ index = currentIndex();
+ if (index < 0 || index >= count())
+ return;
+
+ bool hasFocus = false;
+ if (WebView *tab = webView(index)) {
+ if (tab->isModified()) {
+ QMessageBox closeConfirmation(tab);
+ closeConfirmation.setWindowFlags(Qt::Sheet);
+ closeConfirmation.setWindowTitle(tr("Do you really want to close this page?"));
+ closeConfirmation.setInformativeText(tr("You have modified this page and when closing it you would lose the modification.\n"
+ "Do you really want to close this page?\n"));
+ closeConfirmation.setIcon(QMessageBox::Question);
+ closeConfirmation.addButton(QMessageBox::Yes);
+ closeConfirmation.addButton(QMessageBox::No);
+ closeConfirmation.setEscapeButton(QMessageBox::No);
+ if (closeConfirmation.exec() == QMessageBox::No)
+ return;
+ }
+ hasFocus = tab->hasFocus();
+
+ QWebSettings *globalSettings = QWebSettings::globalSettings();
+ if (!globalSettings->testAttribute(QWebSettings::PrivateBrowsingEnabled)) {
+ m_recentlyClosedTabsAction->setEnabled(true);
+ m_recentlyClosedTabs.prepend(tab->url());
+ if (m_recentlyClosedTabs.size() >= TabWidget::m_recentlyClosedTabsSize)
+ m_recentlyClosedTabs.removeLast();
+ }
+ }
+ QWidget *lineEdit = m_lineEdits->widget(index);
+ m_lineEdits->removeWidget(lineEdit);
+ lineEdit->deleteLater();
+ QWidget *webView = widget(index);
+ removeTab(index);
+ webView->deleteLater();
+ emit tabsChanged();
+ if (hasFocus && count() > 0)
+ currentWebView()->setFocus();
+ if (count() == 0)
+ emit lastTabClosed();
+}
+
+void TabWidget::webViewLoadStarted()
+{
+ WebView *webView = qobject_cast<WebView*>(sender());
+ int index = webViewIndex(webView);
+ if (-1 != index) {
+ QIcon icon(QLatin1String(":loading.gif"));
+ setTabIcon(index, icon);
+ }
+}
+
+void TabWidget::webViewIconChanged()
+{
+ WebView *webView = qobject_cast<WebView*>(sender());
+ int index = webViewIndex(webView);
+ if (-1 != index) {
+ QIcon icon = BrowserApplication::instance()->icon(webView->url());
+ setTabIcon(index, icon);
+ }
+}
+
+void TabWidget::webViewTitleChanged(const QString &title)
+{
+ WebView *webView = qobject_cast<WebView*>(sender());
+ int index = webViewIndex(webView);
+ if (-1 != index) {
+ setTabText(index, title);
+ }
+ if (currentIndex() == index)
+ emit setCurrentTitle(title);
+ BrowserApplication::historyManager()->updateHistoryItem(webView->url(), title);
+}
+
+void TabWidget::webViewUrlChanged(const QUrl &url)
+{
+ WebView *webView = qobject_cast<WebView*>(sender());
+ int index = webViewIndex(webView);
+ if (-1 != index) {
+ m_tabBar->setTabData(index, url);
+ }
+ emit tabsChanged();
+}
+
+void TabWidget::aboutToShowRecentTabsMenu()
+{
+ m_recentlyClosedTabsMenu->clear();
+ for (int i = 0; i < m_recentlyClosedTabs.count(); ++i) {
+ QAction *action = new QAction(m_recentlyClosedTabsMenu);
+ action->setData(m_recentlyClosedTabs.at(i));
+ QIcon icon = BrowserApplication::instance()->icon(m_recentlyClosedTabs.at(i));
+ action->setIcon(icon);
+ action->setText(m_recentlyClosedTabs.at(i).toString());
+ m_recentlyClosedTabsMenu->addAction(action);
+ }
+}
+
+void TabWidget::aboutToShowRecentTriggeredAction(QAction *action)
+{
+ QUrl url = action->data().toUrl();
+ loadUrlInCurrentTab(url);
+}
+
+void TabWidget::mouseDoubleClickEvent(QMouseEvent *event)
+{
+ if (!childAt(event->pos())
+ // Remove the line below when QTabWidget does not have a one pixel frame
+ && event->pos().y() < (tabBar()->y() + tabBar()->height())) {
+ newTab();
+ return;
+ }
+ QTabWidget::mouseDoubleClickEvent(event);
+}
+
+void TabWidget::contextMenuEvent(QContextMenuEvent *event)
+{
+ if (!childAt(event->pos())) {
+ m_tabBar->contextMenuRequested(event->pos());
+ return;
+ }
+ QTabWidget::contextMenuEvent(event);
+}
+
+void TabWidget::mouseReleaseEvent(QMouseEvent *event)
+{
+ if (event->button() == Qt::MidButton && !childAt(event->pos())
+ // Remove the line below when QTabWidget does not have a one pixel frame
+ && event->pos().y() < (tabBar()->y() + tabBar()->height())) {
+ QUrl url(QApplication::clipboard()->text(QClipboard::Selection));
+ if (!url.isEmpty() && url.isValid() && !url.scheme().isEmpty()) {
+ WebView *webView = newTab();
+ webView->setUrl(url);
+ }
+ }
+}
+
+void TabWidget::loadUrlInCurrentTab(const QUrl &url)
+{
+ WebView *webView = currentWebView();
+ if (webView) {
+ webView->loadUrl(url);
+ webView->setFocus();
+ }
+}
+
+void TabWidget::nextTab()
+{
+ int next = currentIndex() + 1;
+ if (next == count())
+ next = 0;
+ setCurrentIndex(next);
+}
+
+void TabWidget::previousTab()
+{
+ int next = currentIndex() - 1;
+ if (next < 0)
+ next = count() - 1;
+ setCurrentIndex(next);
+}
+
+static const qint32 TabWidgetMagic = 0xaa;
+
+QByteArray TabWidget::saveState() const
+{
+ int version = 1;
+ QByteArray data;
+ QDataStream stream(&data, QIODevice::WriteOnly);
+
+ stream << qint32(TabWidgetMagic);
+ stream << qint32(version);
+
+ QStringList tabs;
+ for (int i = 0; i < count(); ++i) {
+ if (WebView *tab = qobject_cast<WebView*>(widget(i))) {
+ tabs.append(tab->url().toString());
+ } else {
+ tabs.append(QString::null);
+ }
+ }
+ stream << tabs;
+ stream << currentIndex();
+ return data;
+}
+
+bool TabWidget::restoreState(const QByteArray &state)
+{
+ int version = 1;
+ QByteArray sd = state;
+ QDataStream stream(&sd, QIODevice::ReadOnly);
+ if (stream.atEnd())
+ return false;
+
+ qint32 marker;
+ qint32 v;
+ stream >> marker;
+ stream >> v;
+ if (marker != TabWidgetMagic || v != version)
+ return false;
+
+ QStringList openTabs;
+ stream >> openTabs;
+
+ for (int i = 0; i < openTabs.count(); ++i) {
+ if (i != 0)
+ newTab();
+ loadPage(openTabs.at(i));
+ }
+
+ int currentTab;
+ stream >> currentTab;
+ setCurrentIndex(currentTab);
+
+ return true;
+}
+
+WebActionMapper::WebActionMapper(QAction *root, QWebPage::WebAction webAction, QObject *parent)
+ : QObject(parent)
+ , m_currentParent(0)
+ , m_root(root)
+ , m_webAction(webAction)
+{
+ if (!m_root)
+ return;
+ connect(m_root, SIGNAL(triggered()), this, SLOT(rootTriggered()));
+ connect(root, SIGNAL(destroyed(QObject *)), this, SLOT(rootDestroyed()));
+ root->setEnabled(false);
+}
+
+void WebActionMapper::rootDestroyed()
+{
+ m_root = 0;
+}
+
+void WebActionMapper::currentDestroyed()
+{
+ updateCurrent(0);
+}
+
+void WebActionMapper::addChild(QAction *action)
+{
+ if (!action)
+ return;
+ connect(action, SIGNAL(changed()), this, SLOT(childChanged()));
+}
+
+QWebPage::WebAction WebActionMapper::webAction() const
+{
+ return m_webAction;
+}
+
+void WebActionMapper::rootTriggered()
+{
+ if (m_currentParent) {
+ QAction *gotoAction = m_currentParent->action(m_webAction);
+ gotoAction->trigger();
+ }
+}
+
+void WebActionMapper::childChanged()
+{
+ if (QAction *source = qobject_cast<QAction*>(sender())) {
+ if (m_root
+ && m_currentParent
+ && source->parent() == m_currentParent) {
+ m_root->setChecked(source->isChecked());
+ m_root->setEnabled(source->isEnabled());
+ }
+ }
+}
+
+void WebActionMapper::updateCurrent(QWebPage *currentParent)
+{
+ if (m_currentParent)
+ disconnect(m_currentParent, SIGNAL(destroyed(QObject *)),
+ this, SLOT(currentDestroyed()));
+
+ m_currentParent = currentParent;
+ if (!m_root)
+ return;
+ if (!m_currentParent) {
+ m_root->setEnabled(false);
+ m_root->setChecked(false);
+ return;
+ }
+ QAction *source = m_currentParent->action(m_webAction);
+ m_root->setChecked(source->isChecked());
+ m_root->setEnabled(source->isEnabled());
+ connect(m_currentParent, SIGNAL(destroyed(QObject *)),
+ this, SLOT(currentDestroyed()));
+}
+