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ladybird/Ladybird/WebContentView.h
Jonah 367b1634fd LibWebView+WebContent: Expose the Accessibility Tree to Other Processes 
This patch also stubs out notify_server_did_get_accessiblity_tree in
ladybird since ViewImplementation now has it. However, this feature
is still immature, so just stubbing out in ladybird for now. Once we
have more robust support in Serenity (namely ARIA properties/state
and accessible names and descriptions) we can port this
functionality over.
2023-01-07 10:51:53 +00:00

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/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#define AK_DONT_REPLACE_STD
#include <AK/DeprecatedString.h>
#include <AK/Function.h>
#include <AK/HashMap.h>
#include <AK/OwnPtr.h>
#include <AK/URL.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Rect.h>
#include <LibGfx/StandardCursor.h>
#include <LibWeb/CSS/Selector.h>
#include <LibWebView/ViewImplementation.h>
#include <LibWeb/Forward.h>
#include <QAbstractScrollArea>
#include <QPointer>
#include "DOMNodeProperties.h"
class QTextEdit;
class QLineEdit;
namespace Ladybird {
class ConsoleWidget;
class InspectorWidget;
}
namespace WebView {
class WebContentClient;
}
using WebView::WebContentClient;
enum class ColorScheme {
Auto,
Light,
Dark,
};
class Tab;
class WebContentView final
: public QAbstractScrollArea
, public WebView::ViewImplementation {
Q_OBJECT
public:
explicit WebContentView(StringView webdriver_content_ipc_path);
virtual ~WebContentView() override;
void load(AK::URL const&);
void load_html(StringView html, AK::URL const&);
Function<void(Gfx::IntPoint screen_position)> on_context_menu_request;
Function<void(const AK::URL&, DeprecatedString const& target, unsigned modifiers)> on_link_click;
Function<void(const AK::URL&, Gfx::IntPoint screen_position)> on_link_context_menu_request;
Function<void(const AK::URL&, Gfx::IntPoint screen_position, Gfx::ShareableBitmap const&)> on_image_context_menu_request;
Function<void(const AK::URL&, DeprecatedString const& target, unsigned modifiers)> on_link_middle_click;
Function<void(const AK::URL&)> on_link_hover;
Function<void(DeprecatedString const&)> on_title_change;
Function<void(const AK::URL&)> on_load_start;
Function<void(const AK::URL&)> on_load_finish;
Function<void(Gfx::Bitmap const&)> on_favicon_change;
Function<void(const AK::URL&)> on_url_drop;
Function<void(Web::DOM::Document*)> on_set_document;
Function<void(const AK::URL&, DeprecatedString const&)> on_get_source;
Function<void(DeprecatedString const&)> on_get_dom_tree;
Function<void(i32 node_id, DeprecatedString const& specified_style, DeprecatedString const& computed_style, DeprecatedString const& custom_properties, DeprecatedString const& node_box_sizing)> on_get_dom_node_properties;
Function<void(i32 message_id)> on_js_console_new_message;
Function<void(i32 start_index, Vector<DeprecatedString> const& message_types, Vector<DeprecatedString> const& messages)> on_get_js_console_messages;
Function<Vector<Web::Cookie::Cookie>(AK::URL const& url)> on_get_all_cookies;
Function<Optional<Web::Cookie::Cookie>(AK::URL const& url, DeprecatedString const& name)> on_get_named_cookie;
Function<DeprecatedString(const AK::URL& url, Web::Cookie::Source source)> on_get_cookie;
Function<void(const AK::URL& url, Web::Cookie::ParsedCookie const& cookie, Web::Cookie::Source source)> on_set_cookie;
Function<void(Web::Cookie::Cookie const& cookie)> on_update_cookie;
Function<void(i32 count_waiting)> on_resource_status_change;
virtual void paintEvent(QPaintEvent*) override;
virtual void resizeEvent(QResizeEvent*) override;
virtual void mouseMoveEvent(QMouseEvent*) override;
virtual void mousePressEvent(QMouseEvent*) override;
virtual void mouseReleaseEvent(QMouseEvent*) override;
virtual void keyPressEvent(QKeyEvent* event) override;
virtual void keyReleaseEvent(QKeyEvent* event) override;
virtual void showEvent(QShowEvent*) override;
virtual void hideEvent(QHideEvent*) override;
virtual void focusInEvent(QFocusEvent*) override;
virtual void focusOutEvent(QFocusEvent*) override;
virtual bool event(QEvent*) override;
void debug_request(DeprecatedString const& request, DeprecatedString const& argument);
void get_source();
void run_javascript(DeprecatedString const& js_source);
void did_output_js_console_message(i32 message_index);
void did_get_js_console_messages(i32 start_index, Vector<DeprecatedString> message_types, Vector<DeprecatedString> messages);
void show_js_console();
void show_inspector();
Gfx::IntPoint to_content(Gfx::IntPoint) const;
Gfx::IntPoint to_widget(Gfx::IntPoint) const;
void set_color_scheme(ColorScheme);
virtual void notify_server_did_layout(Badge<WebContentClient>, Gfx::IntSize content_size) override;
virtual void notify_server_did_paint(Badge<WebContentClient>, i32 bitmap_id) override;
virtual void notify_server_did_invalidate_content_rect(Badge<WebContentClient>, Gfx::IntRect const&) override;
virtual void notify_server_did_change_selection(Badge<WebContentClient>) override;
virtual void notify_server_did_request_cursor_change(Badge<WebContentClient>, Gfx::StandardCursor cursor) override;
virtual void notify_server_did_change_title(Badge<WebContentClient>, DeprecatedString const&) override;
virtual void notify_server_did_request_scroll(Badge<WebContentClient>, i32, i32) override;
virtual void notify_server_did_request_scroll_to(Badge<WebContentClient>, Gfx::IntPoint) override;
virtual void notify_server_did_request_scroll_into_view(Badge<WebContentClient>, Gfx::IntRect const&) override;
virtual void notify_server_did_enter_tooltip_area(Badge<WebContentClient>, Gfx::IntPoint, DeprecatedString const&) override;
virtual void notify_server_did_leave_tooltip_area(Badge<WebContentClient>) override;
virtual void notify_server_did_hover_link(Badge<WebContentClient>, const AK::URL&) override;
virtual void notify_server_did_unhover_link(Badge<WebContentClient>) override;
virtual void notify_server_did_click_link(Badge<WebContentClient>, const AK::URL&, DeprecatedString const& target, unsigned modifiers) override;
virtual void notify_server_did_middle_click_link(Badge<WebContentClient>, const AK::URL&, DeprecatedString const& target, unsigned modifiers) override;
virtual void notify_server_did_start_loading(Badge<WebContentClient>, const AK::URL&, bool) override;
virtual void notify_server_did_finish_loading(Badge<WebContentClient>, const AK::URL&) override;
virtual void notify_server_did_request_navigate_back(Badge<WebContentClient>) override;
virtual void notify_server_did_request_navigate_forward(Badge<WebContentClient>) override;
virtual void notify_server_did_request_refresh(Badge<WebContentClient>) override;
virtual void notify_server_did_request_context_menu(Badge<WebContentClient>, Gfx::IntPoint) override;
virtual void notify_server_did_request_link_context_menu(Badge<WebContentClient>, Gfx::IntPoint, const AK::URL&, DeprecatedString const& target, unsigned modifiers) override;
virtual void notify_server_did_request_image_context_menu(Badge<WebContentClient>, Gfx::IntPoint, const AK::URL&, DeprecatedString const& target, unsigned modifiers, Gfx::ShareableBitmap const&) override;
virtual void notify_server_did_request_alert(Badge<WebContentClient>, DeprecatedString const& message) override;
virtual void notify_server_did_request_confirm(Badge<WebContentClient>, DeprecatedString const& message) override;
virtual void notify_server_did_request_prompt(Badge<WebContentClient>, DeprecatedString const& message, DeprecatedString const& default_) override;
virtual void notify_server_did_request_set_prompt_text(Badge<WebContentClient>, DeprecatedString const& message) override;
virtual void notify_server_did_request_accept_dialog(Badge<WebContentClient>) override;
virtual void notify_server_did_request_dismiss_dialog(Badge<WebContentClient>) override;
virtual void notify_server_did_get_source(const AK::URL& url, DeprecatedString const& source) override;
virtual void notify_server_did_get_dom_tree(DeprecatedString const& dom_tree) override;
virtual void notify_server_did_get_dom_node_properties(i32 node_id, DeprecatedString const& specified_style, DeprecatedString const& computed_style, DeprecatedString const& custom_properties, DeprecatedString const& node_box_sizing) override;
virtual void notify_server_did_get_accessibility_tree(DeprecatedString const& accessibility_tree) override;
virtual void notify_server_did_output_js_console_message(i32 message_index) override;
virtual void notify_server_did_get_js_console_messages(i32 start_index, Vector<DeprecatedString> const& message_types, Vector<DeprecatedString> const& messages) override;
virtual void notify_server_did_change_favicon(Gfx::Bitmap const& favicon) override;
virtual Vector<Web::Cookie::Cookie> notify_server_did_request_all_cookies(Badge<WebContentClient>, AK::URL const& url) override;
virtual Optional<Web::Cookie::Cookie> notify_server_did_request_named_cookie(Badge<WebContentClient>, AK::URL const& url, DeprecatedString const& name) override;
virtual DeprecatedString notify_server_did_request_cookie(Badge<WebContentClient>, const AK::URL& url, Web::Cookie::Source source) override;
virtual void notify_server_did_set_cookie(Badge<WebContentClient>, const AK::URL& url, Web::Cookie::ParsedCookie const& cookie, Web::Cookie::Source source) override;
virtual void notify_server_did_update_cookie(Badge<WebContentClient>, Web::Cookie::Cookie const& cookie) override;
virtual void notify_server_did_update_resource_count(i32 count_waiting) override;
virtual void notify_server_did_request_restore_window() override;
virtual Gfx::IntPoint notify_server_did_request_reposition_window(Gfx::IntPoint) override;
virtual Gfx::IntSize notify_server_did_request_resize_window(Gfx::IntSize) override;
virtual Gfx::IntRect notify_server_did_request_maximize_window() override;
virtual Gfx::IntRect notify_server_did_request_minimize_window() override;
virtual Gfx::IntRect notify_server_did_request_fullscreen_window() override;
virtual void notify_server_did_request_file(Badge<WebContentClient>, DeprecatedString const& path, i32) override;
virtual void notify_server_did_finish_handling_input_event(bool event_was_accepted) override;
signals:
void link_hovered(QString, int timeout = 0);
void link_unhovered();
void back_mouse_button();
void forward_mouse_button();
void load_started(const URL&, bool);
void title_changed(QString);
void favicon_changed(QIcon);
void got_source(URL, QString);
void navigate_back();
void navigate_forward();
void refresh();
void restore_window();
Gfx::IntPoint reposition_window(Gfx::IntPoint);
Gfx::IntSize resize_window(Gfx::IntSize);
Gfx::IntRect maximize_window();
Gfx::IntRect minimize_window();
Gfx::IntRect fullscreen_window();
private:
void request_repaint();
void update_viewport_rect();
void handle_resize();
void ensure_js_console_widget();
void ensure_inspector_widget();
bool is_inspector_open() const;
void inspect_dom_tree();
void clear_inspected_dom_node();
void close_sub_widgets();
ErrorOr<Ladybird::DOMNodeProperties> inspect_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> pseudo_element);
qreal m_inverse_pixel_scaling_ratio { 1.0 };
bool m_should_show_line_box_borders { false };
QPointer<QDialog> m_dialog;
Ladybird::ConsoleWidget* m_console_widget { nullptr };
Ladybird::InspectorWidget* m_inspector_widget { nullptr };
Gfx::IntRect m_viewport_rect;
void create_client();
WebContentClient& client();
void handle_web_content_process_crash();
AK::URL m_url;
struct SharedBitmap {
i32 id { -1 };
i32 pending_paints { 0 };
RefPtr<Gfx::Bitmap> bitmap;
};
struct ClientState {
RefPtr<WebContentClient> client;
SharedBitmap front_bitmap;
SharedBitmap back_bitmap;
i32 next_bitmap_id { 0 };
bool has_usable_bitmap { false };
bool got_repaint_requests_while_painting { false };
} m_client_state;
RefPtr<Gfx::Bitmap> m_backup_bitmap;
StringView m_webdriver_content_ipc_path;
};
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