286 lines
8.6 KiB
C++
286 lines
8.6 KiB
C++
// For license of this file, see <project-root-folder>/LICENSE.md.
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#include "gui/webbrowser.h"
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#include "database/databasequeries.h"
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#include "gui/messagebox.h"
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#include "gui/reusable/discoverfeedsbutton.h"
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#include "gui/reusable/locationlineedit.h"
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#include "gui/reusable/searchtextwidget.h"
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#include "gui/webviewer.h"
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#include "miscellaneous/application.h"
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#include "miscellaneous/iconfactory.h"
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#include "network-web/networkfactory.h"
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#include "network-web/webfactory.h"
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#include "services/abstract/serviceroot.h"
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#include <QKeyEvent>
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#include <QScrollBar>
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#include <QTimer>
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#include <QToolBar>
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#include <QToolTip>
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#include <QWebEngineSettings>
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#include <QWidgetAction>
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WebBrowser::WebBrowser(QWidget* parent) : TabContent(parent),
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m_layout(new QVBoxLayout(this)),
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m_toolBar(new QToolBar(tr("Navigation panel"), this)),
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m_webView(new WebViewer(this)),
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m_searchWidget(new SearchTextWidget(this)),
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m_txtLocation(new LocationLineEdit(this)),
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m_btnDiscoverFeeds(new DiscoverFeedsButton(this)),
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m_actionBack(m_webView->pageAction(QWebEnginePage::WebAction::Back)),
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m_actionForward(m_webView->pageAction(QWebEnginePage::WebAction::Forward)),
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m_actionReload(m_webView->pageAction(QWebEnginePage::WebAction::Reload)),
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m_actionStop(m_webView->pageAction(QWebEnginePage::WebAction::Stop)),
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m_actionOpenInSystemBrowser(new QAction(qApp->icons()->fromTheme(QSL("document-open")),
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tr("Open this website in system web browser"),
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this)) {
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// Initialize the components and layout.
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initializeLayout();
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setFocusProxy(m_txtLocation);
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setTabOrder(m_txtLocation, m_toolBar);
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setTabOrder(m_toolBar, m_webView);
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createConnections();
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reloadFontSettings();
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}
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void WebBrowser::createConnections() {
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installEventFilter(this);
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connect(m_searchWidget, &SearchTextWidget::searchCancelled, this, [this]() {
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m_webView->findText(QString());
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});
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connect(m_searchWidget, &SearchTextWidget::searchForText, this, [this](const QString& text, bool backwards) {
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if (backwards) {
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m_webView->findText(text, QWebEnginePage::FindFlag::FindBackward);
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}
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else {
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m_webView->findText(text);
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}
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m_searchWidget->setFocus();
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});
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connect(m_actionOpenInSystemBrowser, &QAction::triggered, this, &WebBrowser::openCurrentSiteInSystemBrowser);
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connect(m_txtLocation, &LocationLineEdit::submitted,
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this, static_cast<void (WebBrowser::*)(const QString&)>(&WebBrowser::loadUrl));
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connect(m_webView, &WebViewer::urlChanged, this, &WebBrowser::updateUrl);
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// Change location textbox status according to webpage status.
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connect(m_webView, &WebViewer::loadStarted, this, &WebBrowser::onLoadingStarted);
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connect(m_webView, &WebViewer::loadProgress, this, &WebBrowser::onLoadingProgress);
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connect(m_webView, &WebViewer::loadFinished, this, &WebBrowser::onLoadingFinished);
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// Forward title/icon changes.
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connect(m_webView, &WebViewer::titleChanged, this, &WebBrowser::onTitleChanged);
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connect(m_webView, &WebViewer::iconChanged, this, &WebBrowser::onIconChanged);
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connect(m_webView->page(), &WebPage::windowCloseRequested, this, &WebBrowser::closeRequested);
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}
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void WebBrowser::updateUrl(const QUrl& url) {
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m_txtLocation->setText(url.toString());
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}
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void WebBrowser::loadUrl(const QUrl& url) {
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if (url.isValid()) {
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m_webView->load(url);
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}
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}
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WebBrowser::~WebBrowser() {
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// Delete members. Do not use scoped pointers here.
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delete m_layout;
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}
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double WebBrowser::verticalScrollBarPosition() const {
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double position;
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QEventLoop loop;
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viewer()->page()->runJavaScript(QSL("window.pageYOffset;"), [&position, &loop](const QVariant& val) {
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position = val.toDouble();
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loop.exit();
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});
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loop.exec();
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return position;
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}
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void WebBrowser::setVerticalScrollBarPosition(double pos) {
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viewer()->page()->runJavaScript(QSL("window.scrollTo(0, %1);").arg(pos));
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}
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void WebBrowser::reloadFontSettings() {
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QFont fon;
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fon.fromString(qApp->settings()->value(GROUP(Messages),
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SETTING(Messages::PreviewerFontStandard)).toString());
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QWebEngineSettings::defaultSettings()->setFontFamily(QWebEngineSettings::FontFamily::StandardFont, fon.family());
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QWebEngineSettings::defaultSettings()->setFontFamily(QWebEngineSettings::FontFamily::SerifFont, fon.family());
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QWebEngineSettings::defaultSettings()->setFontFamily(QWebEngineSettings::FontFamily::SansSerifFont, fon.family());
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QWebEngineSettings::defaultSettings()->setFontSize(QWebEngineSettings::DefaultFontSize, fon.pointSize());
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}
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void WebBrowser::increaseZoom() {
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m_webView->increaseWebPageZoom();
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}
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void WebBrowser::decreaseZoom() {
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m_webView->decreaseWebPageZoom();
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}
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void WebBrowser::resetZoom() {
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m_webView->resetWebPageZoom();
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}
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void WebBrowser::clear() {
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m_webView->clear();
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m_messages.clear();
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hide();
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}
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void WebBrowser::loadUrl(const QString& url) {
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return loadUrl(QUrl::fromUserInput(url));
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}
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void WebBrowser::loadMessages(const QList<Message>& messages, RootItem* root) {
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m_messages = messages;
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m_root = root;
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if (!m_root.isNull()) {
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m_searchWidget->hide();
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m_webView->loadMessages(messages, root);
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show();
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}
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}
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void WebBrowser::loadMessage(const Message& message, RootItem* root) {
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loadMessages(QList<Message>() << message, root);
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}
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bool WebBrowser::eventFilter(QObject* watched, QEvent* event) {
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Q_UNUSED(watched)
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if (event->type() == QEvent::KeyPress) {
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QKeyEvent* key_event = static_cast<QKeyEvent*>(event);
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if (key_event->matches(QKeySequence::StandardKey::Find)) {
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m_searchWidget->clear();
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m_searchWidget->show();
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m_searchWidget->setFocus();
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return true;
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}
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}
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return false;
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}
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void WebBrowser::openCurrentSiteInSystemBrowser() {
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auto url = m_webView->url();
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if (!url.isValid() || url.host().contains(APP_LOW_NAME)) {
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return;
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}
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qApp->web()->openUrlInExternalBrowser(url.toString());
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}
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void WebBrowser::onTitleChanged(const QString& new_title) {
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if (new_title.isEmpty()) {
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//: Webbrowser tab title when no title is available.
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emit titleChanged(m_index, tr("No title"));
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}
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else {
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emit titleChanged(m_index, new_title);
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}
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}
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void WebBrowser::onIconChanged(const QIcon& icon) {
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emit iconChanged(m_index, icon);
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}
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void WebBrowser::initializeLayout() {
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m_toolBar->setFloatable(false);
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m_toolBar->setMovable(false);
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m_toolBar->setAllowedAreas(Qt::ToolBarArea::TopToolBarArea);
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// Modify action texts.
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m_actionBack->setText(tr("Back"));
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m_actionForward->setText(tr("Forward"));
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m_actionReload->setText(tr("Reload"));
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m_actionStop->setText(tr("Stop"));
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QWidgetAction* act_discover = new QWidgetAction(this);
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m_actionOpenInSystemBrowser->setEnabled(false);
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act_discover->setDefaultWidget(m_btnDiscoverFeeds);
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// Add needed actions into toolbar.
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m_toolBar->addAction(m_actionBack);
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m_toolBar->addAction(m_actionForward);
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m_toolBar->addAction(m_actionReload);
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m_toolBar->addAction(m_actionStop);
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m_toolBar->addAction(m_actionOpenInSystemBrowser);
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m_toolBar->addAction(act_discover);
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m_toolBar->addWidget(m_txtLocation);
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m_loadingProgress = new QProgressBar(this);
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m_loadingProgress->setFixedHeight(5);
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m_loadingProgress->setMinimum(0);
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m_loadingProgress->setTextVisible(false);
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m_loadingProgress->setMaximum(100);
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m_loadingProgress->setAttribute(Qt::WidgetAttribute::WA_TranslucentBackground);
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// Setup layout.
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m_layout->addWidget(m_toolBar);
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m_layout->addWidget(m_webView);
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m_layout->addWidget(m_loadingProgress);
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m_layout->addWidget(m_searchWidget);
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m_layout->setMargin(0);
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m_layout->setSpacing(0);
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m_searchWidget->hide();
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}
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void WebBrowser::onLoadingStarted() {
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m_btnDiscoverFeeds->clearFeedAddresses();
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m_loadingProgress->show();
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m_actionOpenInSystemBrowser->setEnabled(false);
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}
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void WebBrowser::onLoadingProgress(int progress) {
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m_loadingProgress->setValue(progress);
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}
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void WebBrowser::onLoadingFinished(bool success) {
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if (success) {
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auto url = m_webView->url();
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if (url.isValid() && !url.host().contains(APP_LOW_NAME)) {
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m_actionOpenInSystemBrowser->setEnabled(true);
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}
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// Let's check if there are any feeds defined on the web and eventually
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// display "Add feeds" button.
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m_webView->page()->toHtml([this](const QString& result) {
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this->m_btnDiscoverFeeds->setFeedAddresses(NetworkFactory::extractFeedLinksFromHtmlPage(m_webView->url(), result));
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});
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}
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else {
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m_btnDiscoverFeeds->clearFeedAddresses();
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}
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m_loadingProgress->hide();
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m_loadingProgress->setValue(0);
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}
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Message* WebBrowser::findMessage(int id) {
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for (int i = 0; i < m_messages.size(); i++) {
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if (m_messages.at(i).m_id == id) {
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return &m_messages[i];
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}
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}
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return nullptr;
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}
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