df2a4adcd2
This patch adds an IPC call for debugging requests. It's stringly typed and very simple, and allows us to easily implement all the features in the Browser's Debug menu.
307 lines
11 KiB
C++
307 lines
11 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "OutOfProcessWebView.h"
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#include "WebContentClient.h"
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#include <AK/String.h>
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#include <AK/URLParser.h>
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#include <LibGUI/MessageBox.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/Palette.h>
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#include <LibGfx/SystemTheme.h>
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REGISTER_WIDGET(Web, OutOfProcessWebView)
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namespace Web {
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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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create_client();
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}
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OutOfProcessWebView::~OutOfProcessWebView()
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{
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}
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void OutOfProcessWebView::create_client()
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{
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m_client_state = {};
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m_client_state.client = WebContentClient::construct(*this);
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m_client_state.client->on_web_content_process_crash = [this] {
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create_client();
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ASSERT(m_client_state.client);
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handle_resize();
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StringBuilder builder;
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builder.append("<html><head><title>Crashed: ");
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builder.append(escape_html_entities(m_url.to_string()));
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builder.append("</title></head><body>");
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builder.append("<h1>Web page crashed");
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if (!m_url.host().is_empty()) {
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builder.appendff(" on {}", escape_html_entities(m_url.host()));
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}
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builder.append("</h1>");
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builder.appendff("The web page <a href='{}'>{}</a> has crashed.<br><br>You can reload the page to try again.", AK::urlencode(m_url.to_string()), escape_html_entities(m_url.to_string()));
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builder.append("</body></html>");
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load_html(builder.to_string(), m_url);
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};
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client().post_message(Messages::WebContentServer::UpdateSystemTheme(Gfx::current_system_theme_buffer()));
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}
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void OutOfProcessWebView::load(const URL& url)
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{
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m_url = url;
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client().post_message(Messages::WebContentServer::LoadURL(url));
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}
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void OutOfProcessWebView::load_html(const StringView& html, const URL& url)
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{
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m_url = url;
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client().post_message(Messages::WebContentServer::LoadHTML(html, url));
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}
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void OutOfProcessWebView::load_empty_document()
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{
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m_url = {};
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client().post_message(Messages::WebContentServer::LoadHTML("", {}));
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}
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void OutOfProcessWebView::paint_event(GUI::PaintEvent& event)
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{
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GUI::ScrollableWidget::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 (!m_client_state.has_usable_bitmap) {
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painter.fill_rect(frame_inner_rect(), palette().base());
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return;
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}
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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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ASSERT(m_client_state.front_bitmap);
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painter.blit({ 0, 0 }, *m_client_state.front_bitmap, m_client_state.front_bitmap->rect());
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}
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void OutOfProcessWebView::resize_event(GUI::ResizeEvent& event)
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{
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GUI::ScrollableWidget::resize_event(event);
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handle_resize();
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}
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void OutOfProcessWebView::handle_resize()
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{
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client().post_message(Messages::WebContentServer::SetViewportRect(Gfx::IntRect({ horizontal_scrollbar().value(), vertical_scrollbar().value() }, available_size())));
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if (m_client_state.front_bitmap) {
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m_client_state.front_bitmap = nullptr;
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client().post_message(Messages::WebContentServer::RemoveBackingStore(m_client_state.front_bitmap_id));
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}
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if (m_client_state.back_bitmap) {
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m_client_state.back_bitmap = nullptr;
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client().post_message(Messages::WebContentServer::RemoveBackingStore(m_client_state.back_bitmap_id));
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}
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m_client_state.front_bitmap_id = -1;
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m_client_state.back_bitmap_id = -1;
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m_client_state.has_usable_bitmap = false;
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if (available_size().is_empty())
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return;
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if (auto new_bitmap = Gfx::Bitmap::create_shareable(Gfx::BitmapFormat::RGB32, available_size())) {
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m_client_state.front_bitmap = move(new_bitmap);
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m_client_state.front_bitmap_id = m_client_state.next_bitmap_id++;
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client().post_message(Messages::WebContentServer::AddBackingStore(m_client_state.front_bitmap_id, m_client_state.front_bitmap->to_shareable_bitmap()));
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}
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if (auto new_bitmap = Gfx::Bitmap::create_shareable(Gfx::BitmapFormat::RGB32, available_size())) {
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m_client_state.back_bitmap = move(new_bitmap);
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m_client_state.back_bitmap_id = m_client_state.next_bitmap_id++;
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client().post_message(Messages::WebContentServer::AddBackingStore(m_client_state.back_bitmap_id, m_client_state.back_bitmap->to_shareable_bitmap()));
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}
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request_repaint();
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}
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void OutOfProcessWebView::keydown_event(GUI::KeyEvent& event)
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{
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client().post_message(Messages::WebContentServer::KeyDown(event.key(), event.modifiers(), event.code_point()));
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}
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void OutOfProcessWebView::mousedown_event(GUI::MouseEvent& event)
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{
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client().post_message(Messages::WebContentServer::MouseDown(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers()));
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}
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void OutOfProcessWebView::mouseup_event(GUI::MouseEvent& event)
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{
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client().post_message(Messages::WebContentServer::MouseUp(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers()));
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}
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void OutOfProcessWebView::mousemove_event(GUI::MouseEvent& event)
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{
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client().post_message(Messages::WebContentServer::MouseMove(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers()));
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}
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void OutOfProcessWebView::theme_change_event(GUI::ThemeChangeEvent& event)
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{
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GUI::ScrollableWidget::theme_change_event(event);
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client().post_message(Messages::WebContentServer::UpdateSystemTheme(Gfx::current_system_theme_buffer()));
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request_repaint();
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}
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void OutOfProcessWebView::notify_server_did_paint(Badge<WebContentClient>, i32 bitmap_id)
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{
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if (m_client_state.back_bitmap_id == bitmap_id) {
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m_client_state.has_usable_bitmap = true;
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swap(m_client_state.back_bitmap, m_client_state.front_bitmap);
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swap(m_client_state.back_bitmap_id, m_client_state.front_bitmap_id);
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update();
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}
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}
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void OutOfProcessWebView::notify_server_did_invalidate_content_rect(Badge<WebContentClient>, [[maybe_unused]] const Gfx::IntRect& content_rect)
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{
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request_repaint();
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}
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void OutOfProcessWebView::notify_server_did_change_selection(Badge<WebContentClient>)
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{
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request_repaint();
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}
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void OutOfProcessWebView::notify_server_did_layout(Badge<WebContentClient>, const Gfx::IntSize& content_size)
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{
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set_content_size(content_size);
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}
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void OutOfProcessWebView::notify_server_did_change_title(Badge<WebContentClient>, const String& title)
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{
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if (on_title_change)
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on_title_change(title);
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}
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void OutOfProcessWebView::notify_server_did_request_scroll_into_view(Badge<WebContentClient>, const Gfx::IntRect& rect)
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{
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scroll_into_view(rect, true, true);
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}
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void OutOfProcessWebView::notify_server_did_hover_link(Badge<WebContentClient>, const URL& url)
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{
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set_override_cursor(Gfx::StandardCursor::Hand);
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if (on_link_hover)
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on_link_hover(url);
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}
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void OutOfProcessWebView::notify_server_did_unhover_link(Badge<WebContentClient>)
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{
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set_override_cursor(Gfx::StandardCursor::None);
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if (on_link_hover)
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on_link_hover({});
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}
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void OutOfProcessWebView::notify_server_did_click_link(Badge<WebContentClient>, const URL& url, const String& target, unsigned int modifiers)
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{
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if (on_link_click)
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on_link_click(url, target, modifiers);
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}
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void OutOfProcessWebView::notify_server_did_middle_click_link(Badge<WebContentClient>, const URL& url, const String& target, unsigned int modifiers)
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{
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if (on_link_middle_click)
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on_link_middle_click(url, target, modifiers);
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}
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void OutOfProcessWebView::notify_server_did_start_loading(Badge<WebContentClient>, const URL& url)
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{
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if (on_load_start)
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on_load_start(url);
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}
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void OutOfProcessWebView::notify_server_did_finish_loading(Badge<WebContentClient>, const URL& url)
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{
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if (on_load_finish)
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on_load_finish(url);
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}
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void OutOfProcessWebView::notify_server_did_request_context_menu(Badge<WebContentClient>, const Gfx::IntPoint& content_position)
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{
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if (on_context_menu_request)
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on_context_menu_request(screen_relative_rect().location().translated(to_widget_position(content_position)));
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}
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void OutOfProcessWebView::notify_server_did_request_link_context_menu(Badge<WebContentClient>, const Gfx::IntPoint& content_position, const URL& url, const String&, unsigned)
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{
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if (on_link_context_menu_request)
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on_link_context_menu_request(url, screen_relative_rect().location().translated(to_widget_position(content_position)));
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}
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void OutOfProcessWebView::notify_server_did_request_alert(Badge<WebContentClient>, const String& message)
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{
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GUI::MessageBox::show(window(), message, "Alert", GUI::MessageBox::Type::Information);
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}
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void OutOfProcessWebView::did_scroll()
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{
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client().post_message(Messages::WebContentServer::SetViewportRect(visible_content_rect()));
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request_repaint();
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}
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void OutOfProcessWebView::request_repaint()
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{
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// If this widget was instantiated but not yet added to a window,
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// it won't have a back bitmap yet, so we can just skip repaint requests.
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if (!m_client_state.back_bitmap)
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return;
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client().post_message(Messages::WebContentServer::Paint(m_client_state.back_bitmap->rect().translated(horizontal_scrollbar().value(), vertical_scrollbar().value()), m_client_state.back_bitmap_id));
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}
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WebContentClient& OutOfProcessWebView::client()
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{
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ASSERT(m_client_state.client);
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return *m_client_state.client;
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}
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void OutOfProcessWebView::debug_request(const String& request, const String& argument)
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{
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client().post_message(Messages::WebContentServer::DebugRequest(request, argument));
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}
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}
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