1 files changed, 127 insertions, 0 deletions
diff --git a/examples/webenginewidgets/stylesheetbrowser/mainwindow.cpp b/examples/webenginewidgets/stylesheetbrowser/mainwindow.cpp
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+++ b/examples/webenginewidgets/stylesheetbrowser/mainwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the demonstration applications 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/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.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company 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 "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include "stylesheetdialog.h"
+
+MainWindow::MainWindow(const QUrl &url) :
+    QMainWindow(),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    connect(ui->urlBar, &QLineEdit::returnPressed, this, &MainWindow::urlEntered);
+    connect(ui->webEngineView, &QWebEngineView::urlChanged, this, &MainWindow::urlChanged);
+    connect(ui->settingsButton, &QPushButton::clicked, this, &MainWindow::showStyleSheetsDialog);
+    connect(ui->reloadButton, &QPushButton::clicked, this, &MainWindow::reloadRequested);
+
+    QSettings settings;
+    settings.beginGroup("styleSheets");
+    QStringList styleSheets = settings.allKeys();
+    for (auto name : qAsConst(styleSheets))
+        insertStyleSheet(name, settings.value(name, QString()).toString(), false);
+    settings.endGroup();
+
+    ui->webEngineView->setUrl(url);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::insertStyleSheet(const QString &name, const QString &source, bool immediately)
+{
+    QWebEngineScript script;
+    QString s = QString::fromLatin1("(function() {"\
+                                    "    css = document.createElement('style');"\
+                                    "    css.type = 'text/css';"\
+                                    "    css.id = '%1';"\
+                                    "    document.head.appendChild(css);"\
+                                    "    css.innerText = '%2';"\
+                                    "})()").arg(name).arg(source.simplified());
+    if (immediately)
+        ui->webEngineView->page()->runJavaScript(s, QWebEngineScript::ApplicationWorld);
+
+    script.setName(name);
+    script.setSourceCode(s);
+    script.setInjectionPoint(QWebEngineScript::DocumentReady);
+    script.setRunsOnSubFrames(true);
+    script.setWorldId(QWebEngineScript::ApplicationWorld);
+    ui->webEngineView->page()->scripts().insert(script);
+}
+
+void MainWindow::removeStyleSheet(const QString &name, bool immediately)
+{
+    QString s = QString::fromLatin1("(function() {"\
+                                    "    var element = document.getElementById('%1');"\
+                                    "    element.outerHTML = '';"\
+                                    "    delete element;"\
+                                    "})()").arg(name);
+    if (immediately)
+        ui->webEngineView->page()->runJavaScript(s, QWebEngineScript::ApplicationWorld);
+
+    QWebEngineScript script = ui->webEngineView->page()->scripts().findScript(name);
+    ui->webEngineView->page()->scripts().remove(script);
+}
+
+void MainWindow::urlEntered()
+{
+    ui->webEngineView->setUrl(QUrl::fromUserInput(ui->urlBar->text()));
+}
+
+void MainWindow::urlChanged(const QUrl &url)
+{
+    ui->urlBar->setText(url.toString());
+}
+
+void MainWindow::showStyleSheetsDialog()
+{
+    StylesheetDialog *dialog = new StylesheetDialog(this);
+    dialog->show();
+}
+
+void MainWindow::reloadRequested()
+{
+    ui->webEngineView->reload();
+}