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Diffstat (limited to 'examples/webenginewidgets/browser/tabwidget.cpp')
| -rw-r--r-- | examples/webenginewidgets/browser/tabwidget.cpp | 839 |
1 files changed, 839 insertions, 0 deletions
diff --git a/examples/webenginewidgets/browser/tabwidget.cpp b/examples/webenginewidgets/browser/tabwidget.cpp new file mode 100644 index 000000000..3c71b2d53 --- /dev/null +++ b/examples/webenginewidgets/browser/tabwidget.cpp @@ -0,0 +1,839 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "tabwidget.h" + +#include "browserapplication.h" +#include "browsermainwindow.h" +#include "history.h" +#include "urllineedit.h" +#include "webview.h" + +#include <QtCore/QMimeData> +#include <QtGui/QClipboard> +#include <QtWidgets/QCompleter> +#include <QtWidgets/QListView> +#include <QtWidgets/QMenu> +#include <QtWidgets/QMessageBox> +#include <QtGui/QDrag> +#include <QtGui/QMouseEvent> +#include <QtWidgets/QStackedWidget> +#include <QtWidgets/QStyle> +#include <QtWidgets/QToolButton> + +#include <QtCore/QDebug> + +TabBar::TabBar(QWidget *parent) + : QTabBar(parent) +{ + setContextMenuPolicy(Qt::CustomContextMenu); + setAcceptDrops(true); + connect(this, SIGNAL(customContextMenuRequested(QPoint)), + this, SLOT(contextMenuRequested(QPoint))); + + QString ctrl = QLatin1String("Ctrl+%1"); + for (int i = 1; i <= 10; ++i) { + int key = i; + if (key == 10) + key = 0; + QShortcut *shortCut = new QShortcut(ctrl.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, QWebEnginePage::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(QString)), + this, SIGNAL(showStatusBarMessage(QString))); + disconnect(oldWebView->page(), SIGNAL(linkHovered(QString,QString,QString)), + this, SIGNAL(linkHovered(QString))); + disconnect(oldWebView, SIGNAL(loadProgress(int)), + this, SIGNAL(loadProgress(int))); + } + + connect(webView, SIGNAL(statusBarMessage(QString)), + this, SIGNAL(showStatusBarMessage(QString))); + connect(webView->page(), SIGNAL(linkHovered(QString,QString,QString)), + this, SIGNAL(linkHovered(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(QString)), + this, SLOT(webViewTitleChanged(QString))); + connect(webView, SIGNAL(urlChanged(QUrl)), + this, SLOT(webViewUrlChanged(QUrl))); + connect(webView->page(), SIGNAL(windowCloseRequested()), + this, SLOT(windowCloseRequested())); + connect(webView->page(), SIGNAL(geometryChangeRequested(QRect)), + this, SIGNAL(geometryChangeRequested(QRect))); + connect(webView->page(), SIGNAL(printRequested(QWebEngineFrame*)), + this, SIGNAL(printRequested(QWebEngineFrame*))); + 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 defined(QWEBENGINEPAGE_ISMODIFIED) + 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; + } +#endif + hasFocus = tab->hasFocus(); + +#if defined(QWEBENGINESETTINGS) + QWebEngineSettings *globalSettings = QWebEngineSettings::globalSettings(); + if (!globalSettings->testAttribute(QWebEngineSettings::PrivateBrowsingEnabled)) +#endif + { + 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, QWebEnginePage::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())); +} + +QWebEnginePage::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(QWebEnginePage *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())); +} |