mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-21 02:08:12 +03:00
5e1d678bae
Now that LibIPC is using SCM_RIGHTS properly, we can go back to only having one socket laying around when needing to transfer fds to peers.
371 lines
13 KiB
C++
371 lines
13 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "OutOfProcessWebView.h"
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#include "WebContentClient.h"
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#include <AK/ByteString.h>
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#include <LibFileSystemAccessClient/Client.h>
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#include <LibGUI/Application.h>
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#include <LibGUI/Desktop.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Scrollbar.h>
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#include <LibGUI/Window.h>
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#include <LibGfx/Font/FontDatabase.h>
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#include <LibGfx/Palette.h>
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#include <LibGfx/SystemTheme.h>
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#include <LibWeb/Crypto/Crypto.h>
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#include <LibWeb/Worker/WebWorkerClient.h>
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REGISTER_WIDGET(WebView, OutOfProcessWebView)
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namespace WebView {
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OutOfProcessWebView::OutOfProcessWebView()
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{
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set_should_hide_unnecessary_scrollbars(true);
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set_focus_policy(GUI::FocusPolicy::StrongFocus);
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initialize_client(CreateNewClient::Yes);
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on_did_layout = [this](auto content_size) {
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set_content_size(content_size);
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};
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on_ready_to_paint = [this]() {
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update();
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};
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on_request_file = [this](auto const& path, auto request_id) {
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auto file = FileSystemAccessClient::Client::the().request_file_read_only_approved(window(), path);
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if (file.is_error())
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client().async_handle_file_return(m_client_state.page_index, file.error().code(), {}, request_id);
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else
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client().async_handle_file_return(m_client_state.page_index, 0, IPC::File::adopt_file(file.release_value().release_stream()), request_id);
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};
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on_scroll_by_delta = [this](auto x_delta, auto y_delta) {
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horizontal_scrollbar().increase_slider_by(x_delta);
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vertical_scrollbar().increase_slider_by(y_delta);
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};
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on_scroll_to_point = [this](auto position) {
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horizontal_scrollbar().set_value(position.x());
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vertical_scrollbar().set_value(position.y());
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};
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on_cursor_change = [this](auto cursor) {
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set_override_cursor(cursor);
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};
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on_enter_tooltip_area = [](auto, auto tooltip) {
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GUI::Application::the()->show_tooltip(MUST(String::from_byte_string(tooltip)), nullptr);
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};
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on_leave_tooltip_area = []() {
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GUI::Application::the()->hide_tooltip();
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};
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on_finish_handling_key_event = [this](auto const& event) {
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finish_handling_key_event(event);
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};
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on_request_worker_agent = []() {
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auto worker_client = MUST(Web::HTML::WebWorkerClient::try_create());
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return worker_client->dup_socket();
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};
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}
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OutOfProcessWebView::~OutOfProcessWebView() = default;
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void OutOfProcessWebView::initialize_client(WebView::ViewImplementation::CreateNewClient)
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{
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// FIXME: Don't create a new process when CreateNewClient is false
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// We should create a new tab/window in the UI instead, and re-use the existing WebContentClient object.
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m_client_state = {};
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m_client_state.client = WebContentClient::try_create(*this).release_value_but_fixme_should_propagate_errors();
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m_client_state.client->on_web_content_process_crash = [this] {
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deferred_invoke([this] {
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handle_web_content_process_crash();
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});
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};
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m_client_state.client_handle = Web::Crypto::generate_random_uuid().release_value_but_fixme_should_propagate_errors();
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client().async_set_window_handle(m_client_state.page_index, m_client_state.client_handle);
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client().async_update_system_theme(m_client_state.page_index, Gfx::current_system_theme_buffer());
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client().async_update_system_fonts(m_client_state.page_index, Gfx::FontDatabase::default_font_query(), Gfx::FontDatabase::fixed_width_font_query(), Gfx::FontDatabase::window_title_font_query());
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Vector<Web::DevicePixelRect> screen_rects;
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for (auto const& screen_rect : GUI::Desktop::the().rects()) {
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screen_rects.append(screen_rect.to_type<Web::DevicePixels>());
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}
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client().async_update_screen_rects(m_client_state.page_index, screen_rects, GUI::Desktop::the().main_screen_index());
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}
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void OutOfProcessWebView::paint_event(GUI::PaintEvent& event)
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{
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Super::paint_event(event);
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// If the available size is empty, we don't have a front or back bitmap to draw.
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if (available_size().is_empty())
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return;
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GUI::Painter painter(*this);
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painter.add_clip_rect(event.rect());
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if (auto* bitmap = m_client_state.has_usable_bitmap ? m_client_state.front_bitmap.bitmap.ptr() : m_backup_bitmap.ptr()) {
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painter.add_clip_rect(frame_inner_rect());
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painter.translate(frame_thickness(), frame_thickness());
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if (m_content_scales_to_viewport) {
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auto bitmap_rect = Gfx::IntRect {
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{},
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m_client_state.has_usable_bitmap
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? m_client_state.front_bitmap.last_painted_size
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: m_backup_bitmap_size
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};
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painter.draw_scaled_bitmap(rect(), *bitmap, bitmap_rect);
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} else {
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painter.blit({ 0, 0 }, *bitmap, bitmap->rect());
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}
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return;
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}
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painter.fill_rect(frame_inner_rect(), palette().base());
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}
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void OutOfProcessWebView::resize_event(GUI::ResizeEvent& event)
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{
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Super::resize_event(event);
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client().async_set_viewport_rect(m_client_state.page_index, Web::DevicePixelRect({ horizontal_scrollbar().value(), vertical_scrollbar().value() }, available_size()));
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handle_resize();
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}
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Web::DevicePixelRect OutOfProcessWebView::viewport_rect() const
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{
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return visible_content_rect().to_type<Web::DevicePixels>();
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}
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Gfx::IntPoint OutOfProcessWebView::to_content_position(Gfx::IntPoint widget_position) const
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{
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return GUI::AbstractScrollableWidget::to_content_position(widget_position);
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}
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Gfx::IntPoint OutOfProcessWebView::to_widget_position(Gfx::IntPoint content_position) const
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{
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return GUI::AbstractScrollableWidget::to_widget_position(content_position);
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}
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void OutOfProcessWebView::update_zoom()
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{
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client().async_set_device_pixels_per_css_pixel(m_client_state.page_index, m_device_pixel_ratio * m_zoom_level);
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// FIXME: Refactor this into separate update_viewport_rect() + request_repaint() like in Ladybird
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handle_resize();
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}
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void OutOfProcessWebView::keydown_event(GUI::KeyEvent& event)
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{
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enqueue_native_event(Web::KeyEvent::Type::KeyDown, event);
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}
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void OutOfProcessWebView::keyup_event(GUI::KeyEvent& event)
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{
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enqueue_native_event(Web::KeyEvent::Type::KeyUp, event);
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}
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void OutOfProcessWebView::mousedown_event(GUI::MouseEvent& event)
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{
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enqueue_native_event(Web::MouseEvent::Type::MouseDown, event);
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}
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void OutOfProcessWebView::mouseup_event(GUI::MouseEvent& event)
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{
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enqueue_native_event(Web::MouseEvent::Type::MouseUp, event);
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if (event.button() == GUI::MouseButton::Backward) {
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if (on_navigate_back)
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on_navigate_back();
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} else if (event.button() == GUI::MouseButton::Forward) {
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if (on_navigate_forward)
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on_navigate_forward();
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}
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}
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void OutOfProcessWebView::mousemove_event(GUI::MouseEvent& event)
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{
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enqueue_native_event(Web::MouseEvent::Type::MouseMove, event);
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}
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void OutOfProcessWebView::mousewheel_event(GUI::MouseEvent& event)
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{
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enqueue_native_event(Web::MouseEvent::Type::MouseWheel, event);
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}
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void OutOfProcessWebView::doubleclick_event(GUI::MouseEvent& event)
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{
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enqueue_native_event(Web::MouseEvent::Type::DoubleClick, event);
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}
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void OutOfProcessWebView::theme_change_event(GUI::ThemeChangeEvent& event)
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{
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Super::theme_change_event(event);
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client().async_update_system_theme(m_client_state.page_index, Gfx::current_system_theme_buffer());
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}
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void OutOfProcessWebView::screen_rects_change_event(GUI::ScreenRectsChangeEvent& event)
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{
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Vector<Web::DevicePixelRect> screen_rects;
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for (auto const& screen_rect : event.rects()) {
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screen_rects.append(screen_rect.to_type<Web::DevicePixels>());
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}
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client().async_update_screen_rects(m_client_state.page_index, screen_rects, event.main_screen_index());
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}
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void OutOfProcessWebView::did_scroll()
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{
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client().async_set_viewport_rect(m_client_state.page_index, visible_content_rect().to_type<Web::DevicePixels>());
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}
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ByteString OutOfProcessWebView::dump_layout_tree()
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{
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return client().dump_layout_tree(m_client_state.page_index);
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}
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OrderedHashMap<String, String> OutOfProcessWebView::get_local_storage_entries()
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{
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return client().get_local_storage_entries(m_client_state.page_index);
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}
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OrderedHashMap<String, String> OutOfProcessWebView::get_session_storage_entries()
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{
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return client().get_session_storage_entries(m_client_state.page_index);
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}
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void OutOfProcessWebView::set_content_filters(Vector<String> filters)
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{
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client().async_set_content_filters(m_client_state.page_index, move(filters));
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}
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void OutOfProcessWebView::set_autoplay_allowed_on_all_websites()
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{
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client().async_set_autoplay_allowed_on_all_websites(m_client_state.page_index);
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}
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void OutOfProcessWebView::set_autoplay_allowlist(Vector<String> allowlist)
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{
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client().async_set_autoplay_allowlist(m_client_state.page_index, move(allowlist));
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}
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void OutOfProcessWebView::set_proxy_mappings(Vector<ByteString> proxies, HashMap<ByteString, size_t> mappings)
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{
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client().async_set_proxy_mappings(m_client_state.page_index, move(proxies), move(mappings));
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}
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void OutOfProcessWebView::connect_to_webdriver(ByteString const& webdriver_ipc_path)
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{
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client().async_connect_to_webdriver(m_client_state.page_index, webdriver_ipc_path);
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}
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void OutOfProcessWebView::set_window_position(Gfx::IntPoint position)
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{
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client().async_set_window_position(m_client_state.page_index, position.to_type<Web::DevicePixels>());
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}
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void OutOfProcessWebView::set_window_size(Gfx::IntSize size)
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{
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client().async_set_window_size(m_client_state.page_index, size.to_type<Web::DevicePixels>());
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}
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void OutOfProcessWebView::focusin_event(GUI::FocusEvent&)
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{
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client().async_set_has_focus(m_client_state.page_index, true);
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}
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void OutOfProcessWebView::focusout_event(GUI::FocusEvent&)
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{
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client().async_set_has_focus(m_client_state.page_index, false);
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}
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void OutOfProcessWebView::set_system_visibility_state(bool visible)
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{
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client().async_set_system_visibility_state(m_client_state.page_index, visible);
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}
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void OutOfProcessWebView::show_event(GUI::ShowEvent&)
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{
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set_system_visibility_state(true);
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}
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void OutOfProcessWebView::hide_event(GUI::HideEvent&)
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{
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set_system_visibility_state(false);
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}
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void OutOfProcessWebView::enqueue_native_event(Web::MouseEvent::Type type, GUI::MouseEvent const& event)
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{
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auto position = to_content_position(event.position()).to_type<Web::DevicePixels>();
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auto screen_position = (event.position() + (window()->position() + relative_position())).to_type<Web::DevicePixels>();
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// FIXME: This wheel delta step size multiplier is used to remain the old scroll behaviour, in future use system step size.
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static constexpr int SCROLL_STEP_SIZE = 24;
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auto wheel_delta_x = event.wheel_delta_x() * SCROLL_STEP_SIZE;
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auto wheel_delta_y = event.wheel_delta_y() * SCROLL_STEP_SIZE;
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enqueue_input_event(Web::MouseEvent { type, position, screen_position, event.button(), static_cast<GUI::MouseButton>(event.buttons()), static_cast<KeyModifier>(event.modifiers()), wheel_delta_x, wheel_delta_y, nullptr });
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}
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struct KeyData : Web::ChromeInputData {
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explicit KeyData(GUI::KeyEvent const& event)
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: event(make<GUI::KeyEvent>(event))
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{
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}
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NonnullOwnPtr<GUI::KeyEvent> event;
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};
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void OutOfProcessWebView::enqueue_native_event(Web::KeyEvent::Type type, GUI::KeyEvent const& event)
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{
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enqueue_input_event(Web::KeyEvent { type, event.key(), static_cast<KeyModifier>(event.modifiers()), event.code_point(), make<KeyData>(event) });
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}
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void OutOfProcessWebView::finish_handling_key_event(Web::KeyEvent const& key_event)
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{
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// First, we give our superclass a chance to handle the event.
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//
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// If it does not, we dispatch the event to our parent widget, but limited such that it will never bubble up to the
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// Window. (Otherwise, it would then dispatch the event to us since we are the focused widget, and it would go around
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// indefinitely.)
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//
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// Finally, any unhandled KeyDown events are propagated to trigger any shortcut Actions.
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auto& chrome_data = verify_cast<KeyData>(*key_event.chrome_data);
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auto& event = *chrome_data.event;
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switch (key_event.type) {
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case Web::KeyEvent::Type::KeyDown:
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Super::keydown_event(event);
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break;
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case Web::KeyEvent::Type::KeyUp:
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Super::keyup_event(event);
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break;
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}
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if (!event.is_accepted()) {
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parent_widget()->dispatch_event(event, window());
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// NOTE: If other events can ever trigger shortcuts, propagate those here.
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if (!event.is_accepted() && event.type() == GUI::Event::Type::KeyDown)
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window()->propagate_shortcuts(static_cast<GUI::KeyEvent&>(event), this);
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}
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}
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void OutOfProcessWebView::set_content_scales_to_viewport(bool b)
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{
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m_content_scales_to_viewport = b;
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}
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}
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