testing-repository/Qt5/simplebrowser/tabwidget.cpp

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
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****************************************************************************/
#include "tabwidget.h"
#include "webpage.h"
#include "webview.h"
#include <QLabel>
#include <QMenu>
#include <QTabBar>
#include <QWebEngineProfile>
TabWidget::TabWidget(QWebEngineProfile *profile, QWidget *parent)
: QTabWidget(parent)
, m_profile(profile)
{
QTabBar *tabBar = this->tabBar();
tabBar->setTabsClosable(true);
tabBar->setSelectionBehaviorOnRemove(QTabBar::SelectPreviousTab);
tabBar->setMovable(true);
tabBar->setContextMenuPolicy(Qt::CustomContextMenu);
connect(tabBar, &QTabBar::customContextMenuRequested, this, &TabWidget::handleContextMenuRequested);
connect(tabBar, &QTabBar::tabCloseRequested, this, &TabWidget::closeTab);
connect(tabBar, &QTabBar::tabBarDoubleClicked, [this](int index) {
if (index == -1)
createTab();
});
setDocumentMode(true);
setElideMode(Qt::ElideRight);
connect(this, &QTabWidget::currentChanged, this, &TabWidget::handleCurrentChanged);
if (profile->isOffTheRecord()) {
QLabel *icon = new QLabel(this);
QPixmap pixmap(QStringLiteral(":ninja.png"));
icon->setPixmap(pixmap.scaledToHeight(tabBar->height()));
setStyleSheet(QStringLiteral("QTabWidget::tab-bar { left: %1px; }").
arg(icon->pixmap()->width()));
}
}
void TabWidget::handleCurrentChanged(int index)
{
if (index != -1) {
WebView *view = webView(index);
if (!view->url().isEmpty())
view->setFocus();
emit titleChanged(view->title());
emit loadProgress(view->loadProgress());
emit urlChanged(view->url());
emit favIconChanged(view->favIcon());
emit webActionEnabledChanged(QWebEnginePage::Back, view->isWebActionEnabled(QWebEnginePage::Back));
emit webActionEnabledChanged(QWebEnginePage::Forward, view->isWebActionEnabled(QWebEnginePage::Forward));
emit webActionEnabledChanged(QWebEnginePage::Stop, view->isWebActionEnabled(QWebEnginePage::Stop));
emit webActionEnabledChanged(QWebEnginePage::Reload,view->isWebActionEnabled(QWebEnginePage::Reload));
} else {
emit titleChanged(QString());
emit loadProgress(0);
emit urlChanged(QUrl());
emit favIconChanged(QIcon());
emit webActionEnabledChanged(QWebEnginePage::Back, false);
emit webActionEnabledChanged(QWebEnginePage::Forward, false);
emit webActionEnabledChanged(QWebEnginePage::Stop, false);
emit webActionEnabledChanged(QWebEnginePage::Reload, true);
}
}
void TabWidget::handleContextMenuRequested(const QPoint &pos)
{
QMenu menu;
menu.addAction(tr("New &Tab"), this, &TabWidget::createTab, QKeySequence::AddTab);
int index = tabBar()->tabAt(pos);
if (index != -1) {
QAction *action = menu.addAction(tr("Clone Tab"));
connect(action, &QAction::triggered, this, [this,index]() {
cloneTab(index);
});
menu.addSeparator();
action = menu.addAction(tr("&Close Tab"));
action->setShortcut(QKeySequence::Close);
connect(action, &QAction::triggered, this, [this,index]() {
closeTab(index);
});
action = menu.addAction(tr("Close &Other Tabs"));
connect(action, &QAction::triggered, this, [this,index]() {
closeOtherTabs(index);
});
menu.addSeparator();
action = menu.addAction(tr("Reload Tab"));
action->setShortcut(QKeySequence::Refresh);
connect(action, &QAction::triggered, this, [this,index]() {
reloadTab(index);
});
} else {
menu.addSeparator();
}
menu.addAction(tr("Reload All Tabs"), this, &TabWidget::reloadAllTabs);
menu.exec(QCursor::pos());
}
WebView *TabWidget::currentWebView() const
{
return webView(currentIndex());
}
WebView *TabWidget::webView(int index) const
{
return qobject_cast<WebView*>(widget(index));
}
void TabWidget::setupView(WebView *webView)
{
QWebEnginePage *webPage = webView->page();
connect(webView, &QWebEngineView::titleChanged, [this, webView](const QString &title) {
int index = indexOf(webView);
if (index != -1) {
setTabText(index, title);
setTabToolTip(index, title);
}
if (currentIndex() == index)
emit titleChanged(title);
});
connect(webView, &QWebEngineView::urlChanged, [this, webView](const QUrl &url) {
int index = indexOf(webView);
if (index != -1)
tabBar()->setTabData(index, url);
if (currentIndex() == index)
emit urlChanged(url);
});
connect(webView, &QWebEngineView::loadProgress, [this, webView](int progress) {
if (currentIndex() == indexOf(webView))
emit loadProgress(progress);
});
connect(webPage, &QWebEnginePage::linkHovered, [this, webView](const QString &url) {
if (currentIndex() == indexOf(webView))
emit linkHovered(url);
});
connect(webView, &WebView::favIconChanged, [this, webView](const QIcon &icon) {
int index = indexOf(webView);
if (index != -1)
setTabIcon(index, icon);
if (currentIndex() == index)
emit favIconChanged(icon);
});
connect(webView, &WebView::webActionEnabledChanged, [this, webView](QWebEnginePage::WebAction action, bool enabled) {
if (currentIndex() == indexOf(webView))
emit webActionEnabledChanged(action,enabled);
});
connect(webPage, &QWebEnginePage::windowCloseRequested, [this, webView]() {
int index = indexOf(webView);
if (webView->page()->inspectedPage())
window()->close();
else if (index >= 0)
closeTab(index);
});
connect(webView, &WebView::devToolsRequested, this, &TabWidget::devToolsRequested);
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
connect(webPage, &QWebEnginePage::findTextFinished, [this, webView](const QWebEngineFindTextResult &result) {
if (currentIndex() == indexOf(webView))
emit findTextFinished(result);
});
#endif
}
WebView *TabWidget::createTab()
{
WebView *webView = createBackgroundTab();
setCurrentWidget(webView);
return webView;
}
WebView *TabWidget::createBackgroundTab()
{
WebView *webView = new WebView;
WebPage *webPage = new WebPage(m_profile, webView);
webView->setPage(webPage);
setupView(webView);
int index = addTab(webView, tr("(Untitled)"));
setTabIcon(index, webView->favIcon());
// Workaround for QTBUG-61770
webView->resize(currentWidget()->size());
webView->show();
return webView;
}
void TabWidget::reloadAllTabs()
{
for (int i = 0; i < count(); ++i)
webView(i)->reload();
}
void TabWidget::closeOtherTabs(int index)
{
for (int i = count() - 1; i > index; --i)
closeTab(i);
for (int i = index - 1; i >= 0; --i)
closeTab(i);
}
void TabWidget::closeTab(int index)
{
if (WebView *view = webView(index)) {
bool hasFocus = view->hasFocus();
removeTab(index);
if (hasFocus && count() > 0)
currentWebView()->setFocus();
if (count() == 0)
createTab();
view->deleteLater();
}
}
void TabWidget::cloneTab(int index)
{
if (WebView *view = webView(index)) {
WebView *tab = createTab();
tab->setUrl(view->url());
}
}
void TabWidget::setUrl(const QUrl &url)
{
if (WebView *view = currentWebView()) {
view->setUrl(url);
view->setFocus();
}
}
void TabWidget::triggerWebPageAction(QWebEnginePage::WebAction action)
{
if (WebView *webView = currentWebView()) {
webView->triggerPageAction(action);
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);
}
void TabWidget::reloadTab(int index)
{
if (WebView *view = webView(index))
view->reload();
}