take example of simplebrowser

956087ea · Коул Милена Ричардовна · 97d450bb · 956087ea · 956087ea
--- a/webEngineWidgets/webview.cpp
+++ b/webEngineWidgets/webview.cpp
+/****************************************************************************
+**
+** 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
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** 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.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "browser.h"
+#include "browserwindow.h"
+#include "tabwidget.h"
+#include "webpage.h"
+#include "webpopupwindow.h"
+#include "webview.h"
+#include <QContextMenuEvent>
+#include <QDebug>
+#include <QMenu>
+#include <QMessageBox>
+#include <QTimer>
+
+WebView::WebView(QWidget *parent)
+    : QWebEngineView(parent)
+    , m_loadProgress(100)
+{
+    connect(this, &QWebEngineView::loadStarted, [this]() {
+        m_loadProgress = 0;
+        emit favIconChanged(favIcon());
+    });
+    connect(this, &QWebEngineView::loadProgress, [this](int progress) {
+        m_loadProgress = progress;
+    });
+    connect(this, &QWebEngineView::loadFinished, [this](bool success) {
+        m_loadProgress = success ? 100 : -1;
+        emit favIconChanged(favIcon());
+    });
+    connect(this, &QWebEngineView::iconChanged, [this](const QIcon &) {
+        emit favIconChanged(favIcon());
+    });
+
+    connect(this, &QWebEngineView::renderProcessTerminated,
+            [this](QWebEnginePage::RenderProcessTerminationStatus termStatus, int statusCode) {
+        QString status;
+        switch (termStatus) {
+        case QWebEnginePage::NormalTerminationStatus:
+            status = tr("Render process normal exit");
+            break;
+        case QWebEnginePage::AbnormalTerminationStatus:
+            status = tr("Render process abnormal exit");
+            break;
+        case QWebEnginePage::CrashedTerminationStatus:
+            status = tr("Render process crashed");
+            break;
+        case QWebEnginePage::KilledTerminationStatus:
+            status = tr("Render process killed");
+            break;
+        }
+        QMessageBox::StandardButton btn = QMessageBox::question(window(), status,
+                                                   tr("Render process exited with code: %1\n"
+                                                      "Do you want to reload the page ?").arg(statusCode));
+        if (btn == QMessageBox::Yes)
+            QTimer::singleShot(0, [this] { reload(); });
+    });
+}
+
+void WebView::setPage(WebPage *page)
+{
+    createWebActionTrigger(page,QWebEnginePage::Forward);
+    createWebActionTrigger(page,QWebEnginePage::Back);
+    createWebActionTrigger(page,QWebEnginePage::Reload);
+    createWebActionTrigger(page,QWebEnginePage::Stop);
+    QWebEngineView::setPage(page);
+}
+
+int WebView::loadProgress() const
+{
+    return m_loadProgress;
+}
+
+void WebView::createWebActionTrigger(QWebEnginePage *page, QWebEnginePage::WebAction webAction)
+{
+    QAction *action = page->action(webAction);
+    connect(action, &QAction::changed, [this, action, webAction]{
+        emit webActionEnabledChanged(webAction, action->isEnabled());
+    });
+}
+
+bool WebView::isWebActionEnabled(QWebEnginePage::WebAction webAction) const
+{
+    return page()->action(webAction)->isEnabled();
+}
+
+QIcon WebView::favIcon() const
+{
+    QIcon favIcon = icon();
+    if (!favIcon.isNull())
+        return favIcon;
+
+    if (m_loadProgress < 0) {
+        static QIcon errorIcon(QStringLiteral(":dialog-error.png"));
+        return errorIcon;
+    } else if (m_loadProgress < 100) {
+        static QIcon loadingIcon(QStringLiteral(":view-refresh.png"));
+        return loadingIcon;
+    } else {
+        static QIcon defaultIcon(QStringLiteral(":text-html.png"));
+        return defaultIcon;
+    }
+}
+
+QWebEngineView *WebView::createWindow(QWebEnginePage::WebWindowType type)
+{
+    BrowserWindow *mainWindow = qobject_cast<BrowserWindow*>(window());
+    if (!mainWindow)
+        return nullptr;
+
+    switch (type) {
+    case QWebEnginePage::WebBrowserTab: {
+        return mainWindow->tabWidget()->createTab();
+    }
+    case QWebEnginePage::WebBrowserBackgroundTab: {
+        return mainWindow->tabWidget()->createBackgroundTab();
+    }
+    case QWebEnginePage::WebBrowserWindow: {
+        return mainWindow->browser()->createWindow()->currentTab();
+    }
+    case QWebEnginePage::WebDialog: {
+        WebPopupWindow *popup = new WebPopupWindow(page()->profile());
+        connect(popup->view(), &WebView::devToolsRequested, this, &WebView::devToolsRequested);
+        return popup->view();
+    }
+    }
+    return nullptr;
+}
+
+void WebView::contextMenuEvent(QContextMenuEvent *event)
+{
+    QMenu *menu = page()->createStandardContextMenu();
+    const QList<QAction *> actions = menu->actions();
+    auto inspectElement = std::find(actions.cbegin(), actions.cend(), page()->action(QWebEnginePage::InspectElement));
+    if (inspectElement == actions.cend()) {
+        auto viewSource = std::find(actions.cbegin(), actions.cend(), page()->action(QWebEnginePage::ViewSource));
+        if (viewSource == actions.cend())
+            menu->addSeparator();
+
+        QAction *action = new QAction(menu);
+        action->setText("Open inspector in new window");
+        connect(action, &QAction::triggered, [this]() { emit devToolsRequested(page()); });
+
+        QAction *before(inspectElement == actions.cend() ? nullptr : *inspectElement);
+        menu->insertAction(before, action);
+    } else {
+        (*inspectElement)->setText(tr("Inspect element"));
+    }
+    menu->popup(event->globalPos());
+}
+
--- a/webEngineWidgets/webview.h
+++ b/webEngineWidgets/webview.h
+/****************************************************************************
+**
+** 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
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** 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.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WEBVIEW_H
+#define WEBVIEW_H
+
+#include <QIcon>
+#include <QWebEngineView>
+
+class WebPage;
+
+class WebView : public QWebEngineView
+{
+    Q_OBJECT
+
+public:
+    WebView(QWidget *parent = nullptr);
+    void setPage(WebPage *page);
+
+    int loadProgress() const;
+    bool isWebActionEnabled(QWebEnginePage::WebAction webAction) const;
+    QIcon favIcon() const;
+
+protected:
+    void contextMenuEvent(QContextMenuEvent *event) override;
+    QWebEngineView *createWindow(QWebEnginePage::WebWindowType type) override;
+
+signals:
+    void webActionEnabledChanged(QWebEnginePage::WebAction webAction, bool enabled);
+    void favIconChanged(const QIcon &icon);
+    void devToolsRequested(QWebEnginePage *source);
+
+private:
+    void createWebActionTrigger(QWebEnginePage *page, QWebEnginePage::WebAction);
+
+private:
+    int m_loadProgress;
+};
+
+#endif