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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mainwindow.h"
#include "stylesheetdialog.h"
#include "ui_mainwindow.h"
static QMap<QString, QString> defaultStyleSheets = {
{"Upside down", "body { -webkit-transform: rotate(180deg); }"}
};
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();
if (styleSheets.empty()) {
// Add back default style sheets if the user cleared them out
loadDefaultStyleSheets();
} else {
for (auto name : qAsConst(styleSheets)) {
StyleSheet styleSheet = settings.value(name).value<StyleSheet>();
if (styleSheet.second)
insertStyleSheet(name, styleSheet.first, 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);
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");
auto it = defaultStyleSheets.constBegin();
while (it != defaultStyleSheets.constEnd()) {
settings.setValue(it.key(), QVariant::fromValue(qMakePair(it.value(), true)));
insertStyleSheet(it.key(), it.value(), false);
++it;
}
settings.endGroup();
}
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();
}
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