rssguard/src/librssguard/gui/webengine/webengineviewer.cpp
2022-03-29 13:34:19 +02:00

332 lines
11 KiB
C++

// For license of this file, see <project-root-folder>/LICENSE.md.
#include "gui/webengine/webengineviewer.h"
#include "definitions/definitions.h"
#include "gui/dialogs/formmain.h"
#include "gui/tabwidget.h"
#include "gui/webbrowser.h"
#include "miscellaneous/application.h"
#include "miscellaneous/externaltool.h"
#include "miscellaneous/skinfactory.h"
#include "network-web/adblock/adblockicon.h"
#include "network-web/adblock/adblockmanager.h"
#include "network-web/networkfactory.h"
#include "network-web/webengine/webenginepage.h"
#include "network-web/webfactory.h"
#include <QFileIconProvider>
#include <QTimer>
#include <QToolTip>
#if QT_VERSION_MAJOR == 6
#include <QWebEngineContextMenuRequest>
#else
#include <QOpenGLWidget>
#include <QWebEngineContextMenuData>
#endif
#include <QWebEngineProfile>
#include <QWheelEvent>
WebEngineViewer::WebEngineViewer(QWidget* parent) : QWebEngineView(parent), m_browser(nullptr), m_root(nullptr) {
WebEnginePage* page = new WebEnginePage(this);
setPage(page);
}
bool WebEngineViewer::event(QEvent* event) {
if (event->type() == QEvent::Type::ChildAdded) {
QChildEvent* child_ev = static_cast<QChildEvent*>(event);
QWidget* w = qobject_cast<QWidget*>(child_ev->child());
if (w != nullptr && m_browser != nullptr) {
w->installEventFilter(m_browser);
}
}
return QWebEngineView::event(event);
}
WebEnginePage* WebEngineViewer::page() const {
return qobject_cast<WebEnginePage*>(QWebEngineView::page());
}
void WebEngineViewer::loadMessages(const QList<Message>& messages, RootItem* root) {
Skin skin = qApp->skins()->currentSkin();
QString messages_layout;
QString single_message_layout = skin.m_layoutMarkup;
for (const Message& message : messages) {
QString enclosures;
QString enclosure_images;
for (const Enclosure& enclosure : message.m_enclosures) {
QString enc_url;
if (!enclosure.m_url.contains(QRegularExpression(QSL("^(http|ftp|\\/)")))) {
enc_url = QSL(INTERNAL_URL_PASSATTACHMENT) + QL1S("/?") + enclosure.m_url;
}
else {
enc_url = enclosure.m_url;
}
enc_url = QUrl::fromPercentEncoding(enc_url.toUtf8());
enclosures += skin.m_enclosureMarkup.arg(enc_url,
QSL("&#129527;"),
enclosure.m_mimeType);
if (enclosure.m_mimeType.startsWith(QSL("image/")) &&
qApp->settings()->value(GROUP(Messages), SETTING(Messages::DisplayEnclosuresInMessage)).toBool()) {
// Add thumbnail image.
enclosure_images += skin.m_enclosureImageMarkup.arg(
enclosure.m_url,
enclosure.m_mimeType,
qApp->settings()->value(GROUP(Messages), SETTING(Messages::MessageHeadImageHeight)).toString());
}
}
QString msg_date = qApp->settings()->value(GROUP(Messages), SETTING(Messages::UseCustomDate)).toBool()
? message.m_created.toLocalTime().toString(qApp->settings()->value(GROUP(Messages),
SETTING(Messages::CustomDateFormat)).toString())
: qApp->localization()->loadedLocale().toString(message.m_created.toLocalTime(),
QLocale::FormatType::ShortFormat);
messages_layout.append(single_message_layout
.arg(message.m_title,
tr("Written by ") + (message.m_author.isEmpty() ?
tr("unknown author") :
message.m_author),
message.m_url,
message.m_contents,
msg_date,
enclosures,
enclosure_images,
QString::number(message.m_id)));
}
m_messageContents = skin.m_layoutMarkupWrapper.arg(messages.size() == 1
? messages.at(0).m_title
: tr("Newspaper view"),
messages_layout);
m_root = root;
auto* feed = root->getParentServiceRoot()->getItemFromSubTree([messages](const RootItem* it) {
return it->kind() == RootItem::Kind::Feed && it->customId() == messages.at(0).m_feedId;
})->toFeed();
m_messageBaseUrl = QString();
if (feed != nullptr) {
QUrl url(NetworkFactory::sanitizeUrl(feed->source()));
if (url.isValid()) {
m_messageBaseUrl = url.scheme() + QSL("://") + url.host();
}
}
bool previously_enabled = isEnabled();
setEnabled(false);
setHtml(m_messageContents, m_messageBaseUrl /*, QUrl::fromUserInput(INTERNAL_URL_MESSAGE)*/);
setEnabled(previously_enabled);
page()->runJavaScript(QSL("window.scrollTo(0, 0);"));
}
void WebEngineViewer::clear() {
bool previously_enabled = isEnabled();
setEnabled(false);
setHtml(QSL("<!DOCTYPE html><html><body</body></html>"), QUrl(QSL(INTERNAL_URL_BLANK)));
setEnabled(previously_enabled);
}
void WebEngineViewer::contextMenuEvent(QContextMenuEvent* event) {
event->accept();
#if QT_VERSION_MAJOR == 6
QMenu* menu = createStandardContextMenu();
auto* menu_pointer = lastContextMenuRequest();
QWebEngineContextMenuRequest& menu_data = *menu_pointer;
#else
QMenu* menu = page()->createStandardContextMenu();
QWebEngineContextMenuData menu_data = page()->contextMenuData();
#endif
if (menu_data.linkUrl().isValid()) {
QString link_url = menu_data.linkUrl().toString();
// Add option to open link in external viewe
menu->addAction(qApp->icons()->fromTheme(QSL("document-open")), tr("Open link in external browser"), [link_url]() {
qApp->web()->openUrlInExternalBrowser(link_url);
if (qApp->settings()->value(GROUP(Messages), SETTING(Messages::BringAppToFrontAfterMessageOpenedExternally)).toBool()) {
QTimer::singleShot(1000, qApp, []() {
qApp->mainForm()->display();
});
}
});
}
if (menu_data.mediaUrl().isValid() || menu_data.linkUrl().isValid()) {
QString media_link = menu_data.mediaUrl().isValid() ? menu_data.mediaUrl().toString() : menu_data.linkUrl().toString();
QFileIconProvider icon_provider;
QMenu* menu_ext_tools = new QMenu(tr("Open with external tool"), menu);
auto tools = ExternalTool::toolsFromSettings();
menu_ext_tools->setIcon(qApp->icons()->fromTheme(QSL("document-open")));
for (const ExternalTool& tool : qAsConst(tools)) {
QAction* act_tool = new QAction(QFileInfo(tool.executable()).fileName(), menu_ext_tools);
act_tool->setIcon(icon_provider.icon(QFileInfo(tool.executable())));
act_tool->setToolTip(tool.executable());
act_tool->setData(QVariant::fromValue(tool));
menu_ext_tools->addAction(act_tool);
connect(act_tool, &QAction::triggered, this, [this, act_tool, media_link]() {
openUrlWithExternalTool(act_tool->data().value<ExternalTool>(), media_link);
});
}
if (menu_ext_tools->actions().isEmpty()) {
QAction* act_not_tools = new QAction(tr("No external tools activated"));
act_not_tools->setEnabled(false);
menu_ext_tools->addAction(act_not_tools);
}
menu->addMenu(menu_ext_tools);
}
menu->addAction(qApp->web()->adBlock()->adBlockIcon());
menu->addAction(qApp->web()->engineSettingsAction());
const QPoint pos = event->globalPos();
QPoint p(pos.x(), pos.y() + 1);
menu->popup(p);
}
QWebEngineView* WebEngineViewer::createWindow(QWebEnginePage::WebWindowType type) {
auto* viewer = new WebEngineViewer(this);
emit newWindowRequested(viewer);
return viewer;
}
void WebEngineViewer::openUrlWithExternalTool(ExternalTool tool, const QString& target_url) {
tool.run(target_url);
}
RootItem* WebEngineViewer::root() const {
return m_root;
}
void WebEngineViewer::bindToBrowser(WebBrowser* browser) {
m_browser = browser;
browser->m_actionBack = pageAction(QWebEnginePage::WebAction::Back);
browser->m_actionForward = pageAction(QWebEnginePage::WebAction::Forward);
browser->m_actionReload = pageAction(QWebEnginePage::WebAction::Reload);
browser->m_actionStop = pageAction(QWebEnginePage::WebAction::Stop);
connect(this, &WebEngineViewer::loadStarted, browser, &WebBrowser::onLoadingStarted);
connect(this, &WebEngineViewer::loadProgress, browser, &WebBrowser::onLoadingProgress);
connect(this, &WebEngineViewer::loadFinished, browser, &WebBrowser::onLoadingFinished);
connect(this, &WebEngineViewer::titleChanged, browser, &WebBrowser::onTitleChanged);
connect(this, &WebEngineViewer::iconChanged, browser, &WebBrowser::onIconChanged);
connect(this, &WebEngineViewer::urlChanged, browser, &WebBrowser::updateUrl);
connect(this, &WebEngineViewer::newWindowRequested, browser, &WebBrowser::newWindowRequested);
connect(page(), &WebEnginePage::windowCloseRequested, browser, &WebBrowser::windowCloseRequested);
connect(page(), &WebEnginePage::linkHovered, browser, &WebBrowser::onLinkHovered);
}
void WebEngineViewer::findText(const QString& text, bool backwards) {
if (backwards) {
QWebEngineView::findText(text, QWebEnginePage::FindFlag::FindBackward);
}
else {
QWebEngineView::findText(text);
}
}
void WebEngineViewer::setUrl(const QUrl& url) {
QWebEngineView::setUrl(url);
}
void WebEngineViewer::setHtml(const QString& html, const QUrl& base_url) {
QWebEngineView::setHtml(html, base_url);
}
double WebEngineViewer::verticalScrollBarPosition() const {
double position;
QEventLoop loop;
page()->runJavaScript(QSL("window.pageYOffset;"), [&position, &loop](const QVariant& val) {
position = val.toDouble();
loop.exit();
});
loop.exec();
return position;
}
void WebEngineViewer::setVerticalScrollBarPosition(double pos) {
page()->runJavaScript(QSL("window.scrollTo(0, %1);").arg(pos));
}
void WebEngineViewer::applyFont(const QFont& fon) {
auto pixel_size = QFontMetrics(fon).ascent();
QWebEngineProfile::defaultProfile()->settings()->setFontFamily(QWebEngineSettings::FontFamily::StandardFont, fon.family());
QWebEngineProfile::defaultProfile()->settings()->setFontFamily(QWebEngineSettings::FontFamily::SerifFont, fon.family());
QWebEngineProfile::defaultProfile()->settings()->setFontFamily(QWebEngineSettings::FontFamily::SansSerifFont, fon.family());
QWebEngineProfile::defaultProfile()->settings()->setFontSize(QWebEngineSettings::DefaultFontSize, pixel_size);
}
bool WebEngineViewer::canZoomIn() const {
return zoomFactor() <= double(MAX_ZOOM_FACTOR) - double(ZOOM_FACTOR_STEP);
}
bool WebEngineViewer::canZoomOut() const {
return zoomFactor() >= double(MIN_ZOOM_FACTOR) + double(ZOOM_FACTOR_STEP);
}
qreal WebEngineViewer::zoomFactor() const {
return QWebEngineView::zoomFactor();
}
void WebEngineViewer::zoomIn() {
setZoomFactor(zoomFactor() + double(ZOOM_FACTOR_STEP));
}
void WebEngineViewer::zoomOut() {
setZoomFactor(zoomFactor() - double(ZOOM_FACTOR_STEP));
}
void WebEngineViewer::setZoomFactor(qreal zoom_factor) {
QWebEngineView::setZoomFactor(zoom_factor);
}
QString WebEngineViewer::html() const {
QEventLoop loop;
QString htmll;
page()->toHtml([&](const QString& htm) {
htmll = htm;
loop.exit();
});
loop.exec();
return htmll;
}
QUrl WebEngineViewer::url() const {
return QWebEngineView::url();
}