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-rw-r--r--examples/webenginewidgets/markdowneditor/mainwindow.cpp189
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diff --git a/examples/webenginewidgets/markdowneditor/mainwindow.cpp b/examples/webenginewidgets/markdowneditor/mainwindow.cpp
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--- a/examples/webenginewidgets/markdowneditor/mainwindow.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
-** 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 "mainwindow.h"
-#include "previewpage.h"
-#include "ui_mainwindow.h"
-
-#include <QFile>
-#include <QFileDialog>
-#include <QFontDatabase>
-#include <QMessageBox>
-#include <QTextStream>
-#include <QWebChannel>
-
-MainWindow::MainWindow(QWidget *parent) :
- QMainWindow(parent),
- ui(new Ui::MainWindow)
-{
- ui->setupUi(this);
- ui->editor->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
- ui->preview->setContextMenuPolicy(Qt::NoContextMenu);
-
- PreviewPage *page = new PreviewPage(this);
- ui->preview->setPage(page);
-
- connect(ui->editor, &QPlainTextEdit::textChanged,
- [this]() { m_content.setText(ui->editor->toPlainText()); });
-
- QWebChannel *channel = new QWebChannel(this);
- channel->registerObject(QStringLiteral("content"), &m_content);
- page->setWebChannel(channel);
-
- ui->preview->setUrl(QUrl("qrc:/index.html"));
-
- connect(ui->actionNew, &QAction::triggered, this, &MainWindow::onFileNew);
- connect(ui->actionOpen, &QAction::triggered, this, &MainWindow::onFileOpen);
- connect(ui->actionSave, &QAction::triggered, this, &MainWindow::onFileSave);
- connect(ui->actionSaveAs, &QAction::triggered, this, &MainWindow::onFileSaveAs);
- connect(ui->actionExit, &QAction::triggered, this, &MainWindow::onExit);
-
- connect(ui->editor->document(), &QTextDocument::modificationChanged,
- ui->actionSave, &QAction::setEnabled);
-
- QFile defaultTextFile(":/default.md");
- defaultTextFile.open(QIODevice::ReadOnly);
- ui->editor->setPlainText(defaultTextFile.readAll());
-}
-
-MainWindow::~MainWindow()
-{
- delete ui;
-}
-
-void MainWindow::openFile(const QString &path)
-{
- QFile f(path);
- if (!f.open(QIODevice::ReadOnly)) {
- QMessageBox::warning(this, windowTitle(),
- tr("Could not open file %1: %2").arg(
- QDir::toNativeSeparators(path), f.errorString()));
- return;
- }
- m_filePath = path;
- ui->editor->setPlainText(f.readAll());
-}
-
-bool MainWindow::isModified() const
-{
- return ui->editor->document()->isModified();
-}
-
-void MainWindow::onFileNew()
-{
- if (isModified()) {
- QMessageBox::StandardButton button = QMessageBox::question(this, windowTitle(),
- tr("You have unsaved changes. Do you want to create a new document anyway?"));
- if (button != QMessageBox::Yes)
- return;
- }
-
- m_filePath.clear();
- ui->editor->setPlainText(tr("## New document"));
- ui->editor->document()->setModified(false);
-}
-
-void MainWindow::onFileOpen()
-{
- if (isModified()) {
- QMessageBox::StandardButton button = QMessageBox::question(this, windowTitle(),
- tr("You have unsaved changes. Do you want to open a new document anyway?"));
- if (button != QMessageBox::Yes)
- return;
- }
-
- QString path = QFileDialog::getOpenFileName(this,
- tr("Open MarkDown File"), "", tr("MarkDown File (*.md)"));
- if (path.isEmpty())
- return;
-
- openFile(path);
-}
-
-void MainWindow::onFileSave()
-{
- if (m_filePath.isEmpty()) {
- onFileSaveAs();
- return;
- }
-
- QFile f(m_filePath);
- if (!f.open(QIODevice::WriteOnly | QIODevice::Text)) {
- QMessageBox::warning(this, windowTitle(),
- tr("Could not write to file %1: %2").arg(
- QDir::toNativeSeparators(m_filePath), f.errorString()));
- return;
- }
- QTextStream str(&f);
- str << ui->editor->toPlainText();
-
- ui->editor->document()->setModified(false);
-}
-
-void MainWindow::onFileSaveAs()
-{
- QString path = QFileDialog::getSaveFileName(this,
- tr("Save MarkDown File"), "", tr("MarkDown File (*.md, *.markdown)"));
- if (path.isEmpty())
- return;
- m_filePath = path;
- onFileSave();
-}
-
-void MainWindow::onExit()
-{
- if (isModified()) {
- QMessageBox::StandardButton button = QMessageBox::question(this, windowTitle(),
- tr("You have unsaved changes. Do you want to exit anyway?"));
- if (button != QMessageBox::Yes)
- return;
- }
- close();
-}
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