ladybird/Ladybird/WebContentView.h
Andreas Kling 195cdb33de Ladybird/WebContentView: Make Tab and Shift+Tab work
These didn't work, for two reasons:

1. Qt swallows all Tab key presses by default. We have to override
   the event() function in order to receive them.

2. Qt transforms Shift+Tab into a fake "Backtab" key. We have to
   undo this transformation and send Shift+Tab to WebContent.
2022-12-25 07:58:58 -07:00

191 lines
8.7 KiB
C++

/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#define AK_DONT_REPLACE_STD
#include <AK/Function.h>
#include <AK/HashMap.h>
#include <AK/OwnPtr.h>
#include <AK/String.h>
#include <AK/URL.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Rect.h>
#include <LibGfx/StandardCursor.h>
#include <LibWebView/ViewImplementation.h>
#include <LibWeb/Forward.h>
#include <QAbstractScrollArea>
#include <QPointer>
class QTextEdit;
class QLineEdit;
namespace Ladybird {
class ConsoleWidget;
}
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:
WebContentView();
virtual ~WebContentView() override;
void load(AK::URL const&);
void load_html(StringView html, AK::URL const&);
void reload();
Function<void(Gfx::IntPoint const& screen_position)> on_context_menu_request;
Function<void(const AK::URL&, String const& target, unsigned modifiers)> on_link_click;
Function<void(const AK::URL&, Gfx::IntPoint const& screen_position)> on_link_context_menu_request;
Function<void(const AK::URL&, Gfx::IntPoint const& screen_position, Gfx::ShareableBitmap const&)> on_image_context_menu_request;
Function<void(const AK::URL&, String const& target, unsigned modifiers)> on_link_middle_click;
Function<void(const AK::URL&)> on_link_hover;
Function<void(String 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&, String const&)> on_get_source;
Function<void(String const&)> on_get_dom_tree;
Function<void(i32 node_id, String const& specified_style, String const& computed_style, String const& custom_properties, String 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<String> const& message_types, Vector<String> const& messages)> on_get_js_console_messages;
Function<String(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(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(String const& request, String const& argument);
void get_source();
void run_javascript(String const& js_source);
void did_output_js_console_message(i32 message_index);
void did_get_js_console_messages(i32 start_index, Vector<String> message_types, Vector<String> 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 const& 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>, String 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 const&) 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 const&, String 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&, String const& target, unsigned modifiers) override;
virtual void notify_server_did_middle_click_link(Badge<WebContentClient>, const AK::URL&, String const& target, unsigned modifiers) override;
virtual void notify_server_did_start_loading(Badge<WebContentClient>, const AK::URL&) override;
virtual void notify_server_did_finish_loading(Badge<WebContentClient>, const AK::URL&) override;
virtual void notify_server_did_request_context_menu(Badge<WebContentClient>, Gfx::IntPoint const&) override;
virtual void notify_server_did_request_link_context_menu(Badge<WebContentClient>, Gfx::IntPoint const&, const AK::URL&, String const& target, unsigned modifiers) override;
virtual void notify_server_did_request_image_context_menu(Badge<WebContentClient>, Gfx::IntPoint const&, const AK::URL&, String const& target, unsigned modifiers, Gfx::ShareableBitmap const&) override;
virtual void notify_server_did_request_alert(Badge<WebContentClient>, String const& message) override;
virtual bool notify_server_did_request_confirm(Badge<WebContentClient>, String const& message) override;
virtual String notify_server_did_request_prompt(Badge<WebContentClient>, String const& message, String const& default_) override;
virtual void notify_server_did_get_source(const AK::URL& url, String const& source) override;
virtual void notify_server_did_get_dom_tree(String const& dom_tree) override;
virtual void notify_server_did_get_dom_node_properties(i32 node_id, String const& specified_style, String const& computed_style, String const& custom_properties, String const& node_box_sizing) 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<String> const& message_types, Vector<String> const& messages) override;
virtual void notify_server_did_change_favicon(Gfx::Bitmap const& favicon) override;
virtual String 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_resource_count(i32 count_waiting) override;
virtual void notify_server_did_request_file(Badge<WebContentClient>, String const& path, i32) override;
signals:
void link_hovered(QString, int timeout = 0);
void link_unhovered();
void load_started(const URL&);
void title_changed(QString);
void favicon_changed(QIcon);
void got_source(URL, QString);
private:
void request_repaint();
void update_viewport_rect();
void handle_resize();
void ensure_js_console_widget();
void ensure_inspector_widget();
qreal m_inverse_pixel_scaling_ratio { 1.0 };
bool m_should_show_line_box_borders { false };
QPointer<QWidget> m_inspector_widget;
Ladybird::ConsoleWidget* m_console_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;
};