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ladybird/Ladybird/SimpleWebView.cpp
Andrew Kaster 2ff37d7e13 Ladybird/Everywhere: Ensure that Qt objects are created with parents 
This prevents memory leaks detected by both Valgrind and ASAN/LSAN.

Valgrind is still suspicious of the leaked JS::VM from
Web::Bindings::main_thread_vm() but there's other issues with leak
checking all the GC'd objects.

Co-Authored-By: Diego Iastrubni <diegoiast@gmail.com>
2022-12-25 07:58:58 -07:00

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/*
* Copyright (c) 2022, Dex♪ <dexes.ttp@gmail.com>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#define AK_DONT_REPLACE_STD
#include "SimpleWebView.h"
#include "ConsoleClient.h"
#include "CookieJar.h"
#include "EventLoopPluginQt.h"
#include "FontPluginQt.h"
#include "ImageCodecPluginLadybird.h"
#include "ModelTranslator.h"
#include "PageClientLadybird.h"
#include "RequestManagerQt.h"
#include "Utilities.h"
#include "WebSocketClientManagerLadybird.h"
#include <AK/Assertions.h>
#include <AK/ByteBuffer.h>
#include <AK/Format.h>
#include <AK/HashTable.h>
#include <AK/LexicalPath.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/StringBuilder.h>
#include <AK/Types.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/EventLoop.h>
#include <LibCore/File.h>
#include <LibCore/IODevice.h>
#include <LibCore/MemoryStream.h>
#include <LibCore/Stream.h>
#include <LibCore/System.h>
#include <LibCore/Timer.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Font/FontDatabase.h>
#include <LibGfx/PNGWriter.h>
#include <LibGfx/Rect.h>
#include <LibJS/Runtime/ConsoleObject.h>
#include <LibMain/Main.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Cookie/ParsedCookie.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/Dump.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/Scripting/ClassicScript.h>
#include <LibWeb/HTML/Storage.h>
#include <LibWeb/HTML/Window.h>
#include <LibWeb/Layout/InitialContainingBlock.h>
#include <LibWeb/Loader/ContentFilter.h>
#include <LibWeb/Loader/ResourceLoader.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/Painting/PaintableBox.h>
#include <LibWeb/Painting/StackingContext.h>
#include <LibWeb/Platform/EventLoopPlugin.h>
#include <LibWebView/DOMTreeModel.h>
#include <QApplication>
#include <QCursor>
#include <QIcon>
#include <QLineEdit>
#include <QMessageBox>
#include <QMouseEvent>
#include <QPaintEvent>
#include <QPainter>
#include <QScrollBar>
#include <QTextEdit>
#include <QToolTip>
#include <QTreeView>
#include <QVBoxLayout>
String s_serenity_resource_root;
SimpleWebView::SimpleWebView()
{
setMouseTracking(true);
m_page_client = Ladybird::PageClientLadybird::create(*this);
m_page_client->setup_palette(Gfx::load_system_theme(String::formatted("{}/res/themes/Default.ini", s_serenity_resource_root)));
// FIXME: Allow passing these values as arguments
m_page_client->set_viewport_rect({ 0, 0, 800, 600 });
m_inverse_pixel_scaling_ratio = 1.0 / devicePixelRatio();
verticalScrollBar()->setSingleStep(24);
horizontalScrollBar()->setSingleStep(24);
QObject::connect(verticalScrollBar(), &QScrollBar::valueChanged, [this](int) {
update_viewport_rect();
});
QObject::connect(horizontalScrollBar(), &QScrollBar::valueChanged, [this](int) {
update_viewport_rect();
});
}
SimpleWebView::~SimpleWebView()
{
}
void SimpleWebView::reload()
{
auto url = m_page_client->page().top_level_browsing_context().active_document()->url();
m_page_client->load(url);
}
void SimpleWebView::load(String const& url)
{
m_page_client->load(AK::URL(url));
}
unsigned get_button_from_qt_event(QMouseEvent const& event)
{
if (event.button() == Qt::MouseButton::LeftButton)
return 1;
if (event.button() == Qt::MouseButton::RightButton)
return 2;
if (event.button() == Qt::MouseButton::MiddleButton)
return 4;
if (event.button() == Qt::MouseButton::BackButton)
return 8;
if (event.buttons() == Qt::MouseButton::ForwardButton)
return 16;
return 0;
}
unsigned get_buttons_from_qt_event(QMouseEvent const& event)
{
unsigned buttons = 0;
if (event.buttons() & Qt::MouseButton::LeftButton)
buttons |= 1;
if (event.buttons() & Qt::MouseButton::RightButton)
buttons |= 2;
if (event.buttons() & Qt::MouseButton::MiddleButton)
buttons |= 4;
if (event.buttons() & Qt::MouseButton::BackButton)
buttons |= 8;
if (event.buttons() & Qt::MouseButton::ForwardButton)
buttons |= 16;
return buttons;
}
unsigned get_modifiers_from_qt_mouse_event(QMouseEvent const& event)
{
unsigned modifiers = 0;
if (event.modifiers() & Qt::Modifier::ALT)
modifiers |= 1;
if (event.modifiers() & Qt::Modifier::CTRL)
modifiers |= 2;
if (event.modifiers() & Qt::Modifier::SHIFT)
modifiers |= 4;
return modifiers;
}
unsigned get_modifiers_from_qt_keyboard_event(QKeyEvent const& event)
{
auto modifiers = 0;
if (event.modifiers().testFlag(Qt::AltModifier))
modifiers |= KeyModifier::Mod_Alt;
if (event.modifiers().testFlag(Qt::ControlModifier))
modifiers |= KeyModifier::Mod_Ctrl;
if (event.modifiers().testFlag(Qt::MetaModifier))
modifiers |= KeyModifier::Mod_Super;
if (event.modifiers().testFlag(Qt::ShiftModifier))
modifiers |= KeyModifier::Mod_Shift;
if (event.modifiers().testFlag(Qt::AltModifier))
modifiers |= KeyModifier::Mod_AltGr;
return modifiers;
}
KeyCode get_keycode_from_qt_keyboard_event(QKeyEvent const& event)
{
struct Mapping {
constexpr Mapping(Qt::Key q, KeyCode s)
: qt_key(q)
, serenity_key(s)
{
}
Qt::Key qt_key;
KeyCode serenity_key;
};
constexpr Mapping mappings[] = {
{ Qt::Key_0, Key_0 },
{ Qt::Key_1, Key_1 },
{ Qt::Key_2, Key_2 },
{ Qt::Key_3, Key_3 },
{ Qt::Key_4, Key_4 },
{ Qt::Key_5, Key_5 },
{ Qt::Key_6, Key_6 },
{ Qt::Key_7, Key_7 },
{ Qt::Key_8, Key_8 },
{ Qt::Key_9, Key_9 },
{ Qt::Key_A, Key_A },
{ Qt::Key_Alt, Key_Alt },
{ Qt::Key_Ampersand, Key_Ampersand },
{ Qt::Key_Apostrophe, Key_Apostrophe },
{ Qt::Key_AsciiCircum, Key_Circumflex },
{ Qt::Key_AsciiTilde, Key_Tilde },
{ Qt::Key_Asterisk, Key_Asterisk },
{ Qt::Key_At, Key_AtSign },
{ Qt::Key_B, Key_B },
{ Qt::Key_Backslash, Key_Backslash },
{ Qt::Key_Backspace, Key_Backspace },
{ Qt::Key_Bar, Key_Pipe },
{ Qt::Key_BraceLeft, Key_LeftBrace },
{ Qt::Key_BraceRight, Key_RightBrace },
{ Qt::Key_BracketLeft, Key_LeftBracket },
{ Qt::Key_BracketRight, Key_RightBracket },
{ Qt::Key_C, Key_C },
{ Qt::Key_CapsLock, Key_CapsLock },
{ Qt::Key_Colon, Key_Colon },
{ Qt::Key_Comma, Key_Comma },
{ Qt::Key_Control, Key_Control },
{ Qt::Key_D, Key_D },
{ Qt::Key_Delete, Key_Delete },
{ Qt::Key_Dollar, Key_Dollar },
{ Qt::Key_Down, Key_Down },
{ Qt::Key_E, Key_E },
{ Qt::Key_End, Key_End },
{ Qt::Key_Equal, Key_Equal },
{ Qt::Key_Escape, Key_Escape },
{ Qt::Key_exclamdown, Key_ExclamationPoint },
{ Qt::Key_F, Key_F },
{ Qt::Key_F1, Key_F1 },
{ Qt::Key_F10, Key_F10 },
{ Qt::Key_F11, Key_F11 },
{ Qt::Key_F12, Key_F12 },
{ Qt::Key_F2, Key_F2 },
{ Qt::Key_F3, Key_F3 },
{ Qt::Key_F4, Key_F4 },
{ Qt::Key_F5, Key_F5 },
{ Qt::Key_F6, Key_F6 },
{ Qt::Key_F7, Key_F7 },
{ Qt::Key_F8, Key_F8 },
{ Qt::Key_F9, Key_F9 },
{ Qt::Key_G, Key_G },
{ Qt::Key_Greater, Key_GreaterThan },
{ Qt::Key_H, Key_H },
{ Qt::Key_Home, Key_Home },
{ Qt::Key_I, Key_I },
{ Qt::Key_Insert, Key_Insert },
{ Qt::Key_J, Key_J },
{ Qt::Key_K, Key_K },
{ Qt::Key_L, Key_L },
{ Qt::Key_Left, Key_Left },
{ Qt::Key_Less, Key_LessThan },
{ Qt::Key_M, Key_M },
{ Qt::Key_Menu, Key_Menu },
{ Qt::Key_Minus, Key_Minus },
{ Qt::Key_N, Key_N },
{ Qt::Key_NumLock, Key_NumLock },
{ Qt::Key_O, Key_O },
{ Qt::Key_P, Key_P },
{ Qt::Key_PageDown, Key_PageDown },
{ Qt::Key_PageUp, Key_PageUp },
{ Qt::Key_ParenLeft, Key_LeftParen },
{ Qt::Key_ParenRight, Key_RightParen },
{ Qt::Key_Percent, Key_Percent },
{ Qt::Key_Period, Key_Period },
{ Qt::Key_Plus, Key_Plus },
{ Qt::Key_Print, Key_PrintScreen },
{ Qt::Key_Q, Key_Q },
{ Qt::Key_Question, Key_QuestionMark },
{ Qt::Key_QuoteDbl, Key_DoubleQuote },
{ Qt::Key_R, Key_R },
{ Qt::Key_Return, Key_Return },
{ Qt::Key_Right, Key_Right },
{ Qt::Key_S, Key_S },
{ Qt::Key_ScrollLock, Key_ScrollLock },
{ Qt::Key_Semicolon, Key_Semicolon },
{ Qt::Key_Shift, Key_LeftShift },
{ Qt::Key_Slash, Key_Slash },
{ Qt::Key_Space, Key_Space },
{ Qt::Key_Super_L, Key_Super },
{ Qt::Key_SysReq, Key_SysRq },
{ Qt::Key_T, Key_T },
{ Qt::Key_Tab, Key_Tab },
{ Qt::Key_U, Key_U },
{ Qt::Key_Underscore, Key_Underscore },
{ Qt::Key_Up, Key_Up },
{ Qt::Key_V, Key_V },
{ Qt::Key_W, Key_W },
{ Qt::Key_X, Key_X },
{ Qt::Key_Y, Key_Y },
{ Qt::Key_Z, Key_Z },
};
for (auto const& mapping : mappings) {
if (event.key() == mapping.qt_key)
return mapping.serenity_key;
}
return Key_Invalid;
}
void SimpleWebView::mouseMoveEvent(QMouseEvent* event)
{
Gfx::IntPoint position(event->position().x() / m_inverse_pixel_scaling_ratio, event->position().y() / m_inverse_pixel_scaling_ratio);
auto buttons = get_buttons_from_qt_event(*event);
auto modifiers = get_modifiers_from_qt_mouse_event(*event);
m_page_client->page().handle_mousemove(to_content(position), buttons, modifiers);
}
void SimpleWebView::mousePressEvent(QMouseEvent* event)
{
Gfx::IntPoint position(event->position().x() / m_inverse_pixel_scaling_ratio, event->position().y() / m_inverse_pixel_scaling_ratio);
auto button = get_button_from_qt_event(*event);
if (button == 0) {
// We could not convert Qt buttons to something that Lagom can
// recognize - don't even bother propagating this to the web engine
// as it will not handle it anyway, and it will (currently) assert
return;
}
auto modifiers = get_modifiers_from_qt_mouse_event(*event);
m_page_client->page().handle_mousedown(to_content(position), button, modifiers);
}
void SimpleWebView::mouseReleaseEvent(QMouseEvent* event)
{
Gfx::IntPoint position(event->position().x() / m_inverse_pixel_scaling_ratio, event->position().y() / m_inverse_pixel_scaling_ratio);
auto button = get_button_from_qt_event(*event);
if (button == 0) {
// We could not convert Qt buttons to something that Lagom can
// recognize - don't even bother propagating this to the web engine
// as it will not handle it anyway, and it will (currently) assert
return;
}
auto modifiers = get_modifiers_from_qt_mouse_event(*event);
m_page_client->page().handle_mouseup(to_content(position), button, modifiers);
}
void SimpleWebView::keyPressEvent(QKeyEvent* event)
{
switch (event->key()) {
case Qt::Key_Left:
case Qt::Key_Right:
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_PageUp:
case Qt::Key_PageDown:
QAbstractScrollArea::keyPressEvent(event);
break;
default:
break;
}
auto text = event->text();
if (text.isEmpty()) {
return;
}
auto point = event->text()[0].unicode();
auto keycode = get_keycode_from_qt_keyboard_event(*event);
auto modifiers = get_modifiers_from_qt_keyboard_event(*event);
m_page_client->page().handle_keydown(keycode, modifiers, point);
}
void SimpleWebView::keyReleaseEvent(QKeyEvent* event)
{
auto text = event->text();
if (text.isEmpty()) {
return;
}
auto point = event->text()[0].unicode();
auto keycode = get_keycode_from_qt_keyboard_event(*event);
auto modifiers = get_modifiers_from_qt_keyboard_event(*event);
m_page_client->page().handle_keyup(keycode, modifiers, point);
}
Gfx::IntPoint SimpleWebView::to_content(Gfx::IntPoint viewport_position) const
{
return viewport_position.translated(horizontalScrollBar()->value(), verticalScrollBar()->value());
}
Gfx::IntPoint SimpleWebView::to_widget(Gfx::IntPoint content_position) const
{
return content_position.translated(-horizontalScrollBar()->value(), -verticalScrollBar()->value());
}
void SimpleWebView::paintEvent(QPaintEvent* event)
{
QPainter painter(viewport());
painter.setClipRect(event->rect());
painter.scale(m_inverse_pixel_scaling_ratio, m_inverse_pixel_scaling_ratio);
auto output_rect = m_page_client->viewport_rect();
output_rect.set_x(horizontalScrollBar()->value());
output_rect.set_y(verticalScrollBar()->value());
auto output_bitmap = MUST(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, output_rect.size()));
m_page_client->paint(output_rect, output_bitmap);
QImage q_image(output_bitmap->scanline_u8(0), output_bitmap->width(), output_bitmap->height(), QImage::Format_RGB32);
painter.drawImage(QPoint(0, 0), q_image);
}
void SimpleWebView::resizeEvent(QResizeEvent* event)
{
QAbstractScrollArea::resizeEvent(event);
update_viewport_rect();
}
void SimpleWebView::update_viewport_rect()
{
auto scaled_width = int(size().width() / m_inverse_pixel_scaling_ratio);
auto scaled_height = int(size().height() / m_inverse_pixel_scaling_ratio);
Gfx::IntRect rect(horizontalScrollBar()->value(), verticalScrollBar()->value(), scaled_width, scaled_height);
m_page_client->set_viewport_rect(rect);
}
static void platform_init()
{
#ifdef AK_OS_ANDROID
extern void android_platform_init();
android_platform_init();
#else
s_serenity_resource_root = [] {
auto const* source_dir = getenv("SERENITY_SOURCE_DIR");
if (source_dir) {
return String::formatted("{}/Base", source_dir);
}
auto* home = getenv("XDG_CONFIG_HOME") ?: getenv("HOME");
VERIFY(home);
auto home_lagom = String::formatted("{}/.lagom", home);
if (Core::File::is_directory(home_lagom))
return home_lagom;
auto app_dir = akstring_from_qstring(QApplication::applicationDirPath());
return LexicalPath(app_dir).parent().append("share"sv).string();
}();
#endif
}
static ErrorOr<void> load_content_filters()
{
auto file = TRY(Core::Stream::File::open(String::formatted("{}/home/anon/.config/BrowserContentFilters.txt", s_serenity_resource_root), Core::Stream::OpenMode::Read));
auto ad_filter_list = TRY(Core::Stream::BufferedFile::create(move(file)));
auto buffer = TRY(ByteBuffer::create_uninitialized(4096));
while (TRY(ad_filter_list->can_read_line())) {
auto line = TRY(ad_filter_list->read_line(buffer));
if (!line.is_empty())
Web::ContentFilter::the().add_pattern(line);
}
return {};
}
void initialize_web_engine()
{
platform_init();
Web::Platform::EventLoopPlugin::install(*new Ladybird::EventLoopPluginQt);
Web::Platform::ImageCodecPlugin::install(*new Ladybird::ImageCodecPluginLadybird);
Web::ResourceLoader::initialize(RequestManagerQt::create());
Web::WebSockets::WebSocketClientManager::initialize(Ladybird::WebSocketClientManagerLadybird::create());
Web::FrameLoader::set_default_favicon_path(String::formatted("{}/res/icons/16x16/app-browser.png", s_serenity_resource_root));
Web::Platform::FontPlugin::install(*new Ladybird::FontPluginQt);
Web::FrameLoader::set_error_page_url(String::formatted("file://{}/res/html/error.html", s_serenity_resource_root));
auto maybe_content_filter_error = load_content_filters();
if (maybe_content_filter_error.is_error())
dbgln("Failed to load content filters: {}", maybe_content_filter_error.error());
}
void SimpleWebView::debug_request(String const& request, String const& argument)
{
auto& page = m_page_client->page();
if (request == "dump-dom-tree") {
if (auto* doc = page.top_level_browsing_context().active_document())
Web::dump_tree(*doc);
}
if (request == "dump-layout-tree") {
if (auto* doc = page.top_level_browsing_context().active_document()) {
if (auto* icb = doc->layout_node())
Web::dump_tree(*icb);
}
}
if (request == "dump-stacking-context-tree") {
if (auto* doc = page.top_level_browsing_context().active_document()) {
if (auto* icb = doc->layout_node()) {
if (auto* stacking_context = icb->paint_box()->stacking_context())
stacking_context->dump();
}
}
}
if (request == "dump-style-sheets") {
if (auto* doc = page.top_level_browsing_context().active_document()) {
for (auto& sheet : doc->style_sheets().sheets()) {
Web::dump_sheet(sheet);
}
}
}
if (request == "collect-garbage") {
Web::Bindings::main_thread_vm().heap().collect_garbage(JS::Heap::CollectionType::CollectGarbage, true);
}
if (request == "set-line-box-borders") {
bool state = argument == "on";
m_page_client->set_should_show_line_box_borders(state);
page.top_level_browsing_context().set_needs_display(page.top_level_browsing_context().viewport_rect());
}
if (request == "clear-cache") {
Web::ResourceLoader::the().clear_cache();
}
if (request == "spoof-user-agent") {
Web::ResourceLoader::the().set_user_agent(argument);
}
if (request == "same-origin-policy") {
page.set_same_origin_policy_enabled(argument == "on");
}
if (request == "scripting") {
page.set_is_scripting_enabled(argument == "on");
}
if (request == "dump-local-storage") {
if (auto* doc = page.top_level_browsing_context().active_document())
doc->window().local_storage()->dump();
}
if (request == "dump-cookies"sv)
m_page_client->dump_cookies();
}
String SimpleWebView::source() const
{
auto* document = m_page_client->page().top_level_browsing_context().active_document();
if (!document)
return String::empty();
return document->source();
}
void SimpleWebView::run_javascript(String const& js_source) const
{
auto* active_document = const_cast<Web::DOM::Document*>(m_page_client->page().top_level_browsing_context().active_document());
if (!active_document)
return;
// This is partially based on "execute a javascript: URL request" https://html.spec.whatwg.org/multipage/browsing-the-web.html#javascript-protocol
// Let settings be browsingContext's active document's relevant settings object.
auto& settings = active_document->relevant_settings_object();
// Let baseURL be settings's API base URL.
auto base_url = settings.api_base_url();
// Let script be the result of creating a classic script given scriptSource, settings, baseURL, and the default classic script fetch options.
// FIXME: This doesn't pass in "default classic script fetch options"
// FIXME: What should the filename be here?
auto script = Web::HTML::ClassicScript::create("(client connection run_javascript)", js_source, settings, base_url);
// Let evaluationStatus be the result of running the classic script script.
auto evaluation_status = script->run();
if (evaluation_status.is_error())
dbgln("Exception :(");
}
void SimpleWebView::did_output_js_console_message(i32 message_index)
{
m_page_client->m_console_client->send_messages(message_index);
}
void SimpleWebView::did_get_js_console_messages(i32, Vector<String>, Vector<String> messages)
{
ensure_js_console_widget();
for (auto& message : messages) {
m_js_console_output_edit->append(qstring_from_akstring(message).trimmed());
}
}
void SimpleWebView::ensure_js_console_widget()
{
if (!m_js_console_widget) {
m_js_console_widget = new QWidget(this);
m_js_console_widget->setWindowTitle("JS Console");
auto* layout = new QVBoxLayout(m_js_console_widget);
m_js_console_widget->setLayout(layout);
m_js_console_output_edit = new QTextEdit(this);
m_js_console_output_edit->setReadOnly(true);
m_js_console_input_edit = new QLineEdit(this);
layout->addWidget(m_js_console_output_edit);
layout->addWidget(m_js_console_input_edit);
m_js_console_widget->resize(640, 480);
QObject::connect(m_js_console_input_edit, &QLineEdit::returnPressed, [this] {
auto code = m_js_console_input_edit->text().trimmed();
m_js_console_input_edit->clear();
m_js_console_output_edit->append(QString("> %1").arg(code));
m_page_client->initialize_js_console();
m_page_client->m_console_client->handle_input(akstring_from_qstring(code));
});
}
}
void SimpleWebView::show_js_console()
{
ensure_js_console_widget();
m_js_console_widget->show();
m_js_console_input_edit->setFocus();
}
void SimpleWebView::ensure_inspector_widget()
{
if (m_inspector_widget)
return;
m_inspector_widget = new QWidget;
m_inspector_widget->setWindowTitle("Inspector");
auto* layout = new QVBoxLayout;
m_inspector_widget->setLayout(layout);
auto* tree_view = new QTreeView;
layout->addWidget(tree_view);
auto dom_tree = m_page_client->page().top_level_browsing_context().active_document()->dump_dom_tree_as_json();
auto dom_tree_model = ::WebView::DOMTreeModel::create(dom_tree);
auto* model = new Ladybird::ModelTranslator(dom_tree_model);
tree_view->setModel(model);
tree_view->setHeaderHidden(true);
tree_view->expandToDepth(3);
m_inspector_widget->resize(640, 480);
QObject::connect(tree_view->selectionModel(), &QItemSelectionModel::currentChanged, [this](QModelIndex const& index, QModelIndex const&) {
auto const* json = (JsonObject const*)index.internalPointer();
m_page_client->page().top_level_browsing_context().active_document()->set_inspected_node(Web::DOM::Node::from_id(json->get("id"sv).to_i32()));
});
}
void SimpleWebView::show_inspector()
{
ensure_inspector_widget();
m_inspector_widget->show();
}
void SimpleWebView::set_color_scheme(ColorScheme color_scheme)
{
switch (color_scheme) {
case ColorScheme::Auto:
m_page_client->m_preferred_color_scheme = Web::CSS::PreferredColorScheme::Auto;
break;
case ColorScheme::Light:
m_page_client->m_preferred_color_scheme = Web::CSS::PreferredColorScheme::Light;
break;
case ColorScheme::Dark:
m_page_client->m_preferred_color_scheme = Web::CSS::PreferredColorScheme::Dark;
break;
}
if (auto* document = m_page_client->page().top_level_browsing_context().active_document())
document->invalidate_style();
}
void SimpleWebView::showEvent(QShowEvent* event)
{
QAbstractScrollArea::showEvent(event);
m_page_client->page().top_level_browsing_context().set_system_visibility_state(Web::HTML::VisibilityState::Visible);
}
void SimpleWebView::hideEvent(QHideEvent* event)
{
QAbstractScrollArea::hideEvent(event);
m_page_client->page().top_level_browsing_context().set_system_visibility_state(Web::HTML::VisibilityState::Hidden);
}
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