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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mainwindow.h"
#include "stylesheetdialog.h"
#include "ui_mainwindow.h"
#include <QWebChannel>
static QMap<QString, QString> defaultStyleSheets = {
{ "Upside down", "body { -webkit-transform: rotate(180deg); }" },
{ "Darkmode",
"body { color: #FFF; background-color: #000 }"
"h1, h2, h3, h4, h5 { color: #FFF }" }
};
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent), ui(new Ui::MainWindow), m_isEditMode(false)
{
ui->setupUi(this);
ui->textEdit->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
ui->textEdit->hide();
ui->webEngineView->setContextMenuPolicy(Qt::NoContextMenu);
connect(ui->stylesheetsButton, &QPushButton::clicked, this, &MainWindow::showStyleSheetsDialog);
connect(ui->editViewButton, &QPushButton::clicked, this, &MainWindow::toggleEditView);
ui->recipes->insertItem(0, "Burger");
ui->recipes->insertItem(1, "Cupcakes");
ui->recipes->insertItem(2, "Pasta");
ui->recipes->insertItem(3, "Pizza");
ui->recipes->insertItem(4, "Skewers");
ui->recipes->insertItem(5, "Soup");
ui->recipes->insertItem(6, "Steak");
connect(ui->recipes, &QListWidget::currentItemChanged, this,
[this](QListWidgetItem *current, QListWidgetItem * /* previous */) {
const QString page = current->text().toLower();
const QString url = QStringLiteral("qrc:/pages/") + page + QStringLiteral(".html");
ui->webEngineView->setUrl(QUrl(url));
m_content.setCurrentPage(page);
});
m_content.setTextEdit(ui->textEdit);
connect(ui->textEdit, &QPlainTextEdit::textChanged, this,
[this]() { m_content.setText(ui->textEdit->toPlainText()); });
QWebChannel *channel = new QWebChannel(this);
channel->registerObject(QStringLiteral("content"), &m_content);
ui->webEngineView->page()->setWebChannel(channel);
QSettings settings;
settings.beginGroup("styleSheets");
QStringList styleSheets = settings.allKeys();
if (styleSheets.empty()) {
// Add back default style sheets if the user cleared them out
loadDefaultStyleSheets();
} else {
for (const auto &name : std::as_const(styleSheets)) {
StyleSheet styleSheet = settings.value(name).value<StyleSheet>();
if (styleSheet.second)
insertStyleSheet(name, styleSheet.first, false);
}
}
settings.endGroup();
ui->recipes->setCurrentItem(ui->recipes->item(0));
}
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, 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);
const QList<QWebEngineScript> scripts = ui->webEngineView->page()->scripts().find(name);
if (!scripts.isEmpty())
ui->webEngineView->page()->scripts().remove(scripts.first());
}
bool MainWindow::hasStyleSheet(const QString &name)
{
const QList<QWebEngineScript> scripts = ui->webEngineView->page()->scripts().find(name);
return !scripts.isEmpty();
}
void MainWindow::loadDefaultStyleSheets()
{
QSettings settings;
settings.beginGroup("styleSheets");
for (auto it = defaultStyleSheets.constBegin(); it != defaultStyleSheets.constEnd(); ++it) {
settings.setValue(it.key(), QVariant::fromValue(qMakePair(it.value(), false)));
}
settings.endGroup();
}
void MainWindow::showStyleSheetsDialog()
{
StylesheetDialog *dialog = new StylesheetDialog(this);
dialog->show();
}
void MainWindow::toggleEditView()
{
m_isEditMode = !m_isEditMode;
if (m_isEditMode) {
ui->webEngineView->hide();
ui->textEdit->show();
ui->editViewButton->setText(QStringLiteral("View"));
ui->editViewButton->setIcon(QIcon(":/icons/view.svg"));
} else {
ui->textEdit->hide();
ui->webEngineView->show();
ui->editViewButton->setText(QStringLiteral("Edit"));
ui->editViewButton->setIcon(QIcon(":/icons/edit.svg"));
}
}
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