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ladybird/Ladybird/WebContentView.cpp
MacDue 09773048b6 Ladybird: Allow right clicking and inspecting elements 
This adds "Inspect Element" (currently the only entry) to the context
menu for the page, which will do what you expect (most of the time),
and bring up the Inspector with hovered element selected.
2023-05-09 06:16:58 +02:00

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/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2023, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "WebContentView.h"
#include "ConsoleWidget.h"
#include "HelperProcess.h"
#include "InspectorWidget.h"
#include "Utilities.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 <Browser/CookieJar.h>
#include <Kernel/API/KeyCode.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/EventLoop.h>
#include <LibCore/IODevice.h>
#include <LibCore/System.h>
#include <LibCore/Timer.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Font/FontDatabase.h>
#include <LibGfx/ImageFormats/PNGWriter.h>
#include <LibGfx/Painter.h>
#include <LibGfx/Palette.h>
#include <LibGfx/Rect.h>
#include <LibGfx/SystemTheme.h>
#include <LibJS/Runtime/ConsoleObject.h>
#include <LibMain/Main.h>
#include <LibWeb/Crypto/Crypto.h>
#include <LibWeb/Loader/ContentFilter.h>
#include <LibWebView/WebContentClient.h>
#include <QApplication>
#include <QCursor>
#include <QIcon>
#include <QInputDialog>
#include <QLineEdit>
#include <QMessageBox>
#include <QMimeData>
#include <QMouseEvent>
#include <QPaintEvent>
#include <QPainter>
#include <QPalette>
#include <QScrollBar>
#include <QTextEdit>
#include <QTimer>
#include <QToolTip>
bool is_using_dark_system_theme(QWidget&);
WebContentView::WebContentView(StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling enable_callgrind_profiling)
: m_webdriver_content_ipc_path(webdriver_content_ipc_path)
{
setMouseTracking(true);
setAcceptDrops(true);
setFocusPolicy(Qt::FocusPolicy::StrongFocus);
m_device_pixel_ratio = devicePixelRatio();
m_inverse_pixel_scaling_ratio = 1.0 / m_device_pixel_ratio;
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();
});
create_client(enable_callgrind_profiling);
}
WebContentView::~WebContentView()
{
close_sub_widgets();
}
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 WebContentView::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);
client().async_mouse_move(to_content(position), 0, buttons, modifiers);
}
void WebContentView::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);
auto buttons = get_buttons_from_qt_event(*event);
client().async_mouse_down(to_content(position), button, buttons, modifiers);
}
void WebContentView::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 (event->button() & Qt::MouseButton::BackButton) {
emit back_mouse_button();
} else if (event->button() & Qt::MouseButton::ForwardButton) {
emit forward_mouse_button();
}
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);
auto buttons = get_buttons_from_qt_event(*event);
client().async_mouse_up(to_content(position), button, buttons, modifiers);
}
void WebContentView::dragEnterEvent(QDragEnterEvent* event)
{
if (event->mimeData()->hasUrls())
event->acceptProposedAction();
}
void WebContentView::dropEvent(QDropEvent* event)
{
VERIFY(event->mimeData()->hasUrls());
emit urls_dropped(event->mimeData()->urls());
event->acceptProposedAction();
}
void WebContentView::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;
}
if (event->key() == Qt::Key_Backtab) {
// NOTE: Qt transforms Shift+Tab into a "Backtab", so we undo that transformation here.
client().async_key_down(KeyCode::Key_Tab, Mod_Shift, '\t');
return;
}
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);
client().async_key_down(keycode, modifiers, point);
}
void WebContentView::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);
client().async_key_up(keycode, modifiers, point);
}
void WebContentView::focusInEvent(QFocusEvent*)
{
client().async_set_has_focus(true);
}
void WebContentView::focusOutEvent(QFocusEvent*)
{
client().async_set_has_focus(false);
}
Gfx::IntPoint WebContentView::to_content(Gfx::IntPoint viewport_position) const
{
return viewport_position.translated(horizontalScrollBar()->value(), verticalScrollBar()->value());
}
Gfx::IntPoint WebContentView::to_widget(Gfx::IntPoint content_position) const
{
return content_position.translated(-horizontalScrollBar()->value(), -verticalScrollBar()->value());
}
void WebContentView::paintEvent(QPaintEvent*)
{
QPainter painter(viewport());
painter.scale(m_inverse_pixel_scaling_ratio, m_inverse_pixel_scaling_ratio);
if (auto* bitmap = m_client_state.has_usable_bitmap ? m_client_state.front_bitmap.bitmap.ptr() : m_backup_bitmap.ptr()) {
QImage q_image(bitmap->scanline_u8(0), bitmap->width(), bitmap->height(), QImage::Format_RGB32);
painter.drawImage(QPoint(0, 0), q_image);
return;
}
painter.fillRect(rect(), palette().base());
}
void WebContentView::resizeEvent(QResizeEvent* event)
{
QAbstractScrollArea::resizeEvent(event);
handle_resize();
}
void WebContentView::handle_resize()
{
update_viewport_rect();
if (m_client_state.has_usable_bitmap) {
// NOTE: We keep the outgoing front bitmap as a backup so we have something to paint until we get a new one.
m_backup_bitmap = m_client_state.front_bitmap.bitmap;
}
if (m_client_state.front_bitmap.bitmap)
client().async_remove_backing_store(m_client_state.front_bitmap.id);
if (m_client_state.back_bitmap.bitmap)
client().async_remove_backing_store(m_client_state.back_bitmap.id);
m_client_state.front_bitmap = {};
m_client_state.back_bitmap = {};
m_client_state.has_usable_bitmap = false;
auto available_size = m_viewport_rect.size();
if (available_size.is_empty())
return;
if (auto new_bitmap_or_error = Gfx::Bitmap::create_shareable(Gfx::BitmapFormat::BGRx8888, available_size); !new_bitmap_or_error.is_error()) {
m_client_state.front_bitmap.bitmap = new_bitmap_or_error.release_value();
m_client_state.front_bitmap.id = m_client_state.next_bitmap_id++;
client().async_add_backing_store(m_client_state.front_bitmap.id, m_client_state.front_bitmap.bitmap->to_shareable_bitmap());
}
if (auto new_bitmap_or_error = Gfx::Bitmap::create_shareable(Gfx::BitmapFormat::BGRx8888, available_size); !new_bitmap_or_error.is_error()) {
m_client_state.back_bitmap.bitmap = new_bitmap_or_error.release_value();
m_client_state.back_bitmap.id = m_client_state.next_bitmap_id++;
client().async_add_backing_store(m_client_state.back_bitmap.id, m_client_state.back_bitmap.bitmap->to_shareable_bitmap());
}
request_repaint();
}
void WebContentView::set_viewport_rect(Gfx::IntRect rect)
{
m_viewport_rect = rect;
client().async_set_viewport_rect(rect);
}
void WebContentView::set_window_size(Gfx::IntSize size)
{
client().async_set_window_size(size);
}
void WebContentView::set_window_position(Gfx::IntPoint position)
{
client().async_set_window_position(position);
}
void WebContentView::update_viewport_rect()
{
auto scaled_width = int(viewport()->width() / m_inverse_pixel_scaling_ratio);
auto scaled_height = int(viewport()->height() / m_inverse_pixel_scaling_ratio);
Gfx::IntRect rect(horizontalScrollBar()->value(), verticalScrollBar()->value(), scaled_width, scaled_height);
set_viewport_rect(rect);
request_repaint();
}
void WebContentView::did_output_js_console_message(i32 message_index)
{
if (m_console_widget)
m_console_widget->notify_about_new_console_message(message_index);
}
void WebContentView::did_get_js_console_messages(i32 start_index, Vector<DeprecatedString> message_types, Vector<DeprecatedString> messages)
{
if (m_console_widget)
m_console_widget->handle_console_messages(start_index, message_types, messages);
}
void WebContentView::ensure_js_console_widget()
{
if (!m_console_widget) {
m_console_widget = new Ladybird::ConsoleWidget;
m_console_widget->setWindowTitle("JS Console");
m_console_widget->resize(640, 480);
m_console_widget->on_js_input = [this](auto js_source) {
client().async_js_console_input(js_source);
};
m_console_widget->on_request_messages = [this](i32 start_index) {
client().async_js_console_request_messages(start_index);
};
}
}
void WebContentView::show_js_console()
{
ensure_js_console_widget();
m_console_widget->show();
}
void WebContentView::ensure_inspector_widget()
{
if (m_inspector_widget)
return;
m_inspector_widget = new Ladybird::InspectorWidget;
m_inspector_widget->setWindowTitle("Inspector");
m_inspector_widget->resize(640, 480);
m_inspector_widget->on_close = [this] {
clear_inspected_dom_node();
};
m_inspector_widget->on_dom_node_inspected = [&](auto id, auto pseudo_element) {
return inspect_dom_node(id, pseudo_element);
};
}
void WebContentView::close_sub_widgets()
{
auto close_widget_window = [](auto* widget) {
if (widget)
widget->close();
};
close_widget_window(m_console_widget);
close_widget_window(m_inspector_widget);
}
bool WebContentView::is_inspector_open() const
{
return m_inspector_widget && m_inspector_widget->isVisible();
}
void WebContentView::show_inspector(InspectorTarget inspector_target)
{
bool inspector_previously_loaded = m_inspector_widget;
ensure_inspector_widget();
if (!inspector_previously_loaded || !m_inspector_widget->dom_loaded()) {
inspect_dom_tree();
inspect_accessibility_tree();
}
m_inspector_widget->show();
if (inspector_target == InspectorTarget::HoveredElement) {
auto hovered_node = get_hovered_node_id();
m_inspector_widget->set_selection({ hovered_node });
} else {
m_inspector_widget->select_default_node();
}
}
void WebContentView::update_zoom()
{
client().async_set_device_pixels_per_css_pixel(m_device_pixel_ratio * m_zoom_level);
update_viewport_rect();
request_repaint();
}
void WebContentView::showEvent(QShowEvent* event)
{
QAbstractScrollArea::showEvent(event);
client().async_set_system_visibility_state(true);
}
void WebContentView::hideEvent(QHideEvent* event)
{
QAbstractScrollArea::hideEvent(event);
client().async_set_system_visibility_state(false);
}
static Core::AnonymousBuffer make_system_theme_from_qt_palette(QWidget& widget, WebContentView::PaletteMode mode)
{
auto qt_palette = widget.palette();
auto theme_file = mode == WebContentView::PaletteMode::Default ? "Default"sv : "Dark"sv;
auto theme = Gfx::load_system_theme(DeprecatedString::formatted("{}/res/themes/{}.ini", s_serenity_resource_root, theme_file)).release_value_but_fixme_should_propagate_errors();
auto palette_impl = Gfx::PaletteImpl::create_with_anonymous_buffer(theme);
auto palette = Gfx::Palette(move(palette_impl));
auto translate = [&](Gfx::ColorRole gfx_color_role, QPalette::ColorRole qt_color_role) {
auto new_color = Gfx::Color::from_argb(qt_palette.color(qt_color_role).rgba());
palette.set_color(gfx_color_role, new_color);
};
translate(Gfx::ColorRole::ThreedHighlight, QPalette::ColorRole::Light);
translate(Gfx::ColorRole::ThreedShadow1, QPalette::ColorRole::Mid);
translate(Gfx::ColorRole::ThreedShadow2, QPalette::ColorRole::Dark);
translate(Gfx::ColorRole::HoverHighlight, QPalette::ColorRole::Light);
translate(Gfx::ColorRole::Link, QPalette::ColorRole::Link);
translate(Gfx::ColorRole::VisitedLink, QPalette::ColorRole::LinkVisited);
translate(Gfx::ColorRole::Button, QPalette::ColorRole::Button);
translate(Gfx::ColorRole::ButtonText, QPalette::ColorRole::ButtonText);
translate(Gfx::ColorRole::Selection, QPalette::ColorRole::Highlight);
translate(Gfx::ColorRole::SelectionText, QPalette::ColorRole::HighlightedText);
palette.set_flag(Gfx::FlagRole::IsDark, is_using_dark_system_theme(widget));
return theme;
}
void WebContentView::update_palette(PaletteMode mode)
{
client().async_update_system_theme(make_system_theme_from_qt_palette(*this, mode));
}
void WebContentView::create_client(WebView::EnableCallgrindProfiling enable_callgrind_profiling)
{
m_client_state = {};
auto candidate_web_content_paths = get_paths_for_helper_process("WebContent"sv).release_value_but_fixme_should_propagate_errors();
auto new_client = launch_web_content_process(candidate_web_content_paths, enable_callgrind_profiling).release_value_but_fixme_should_propagate_errors();
m_client_state.client = new_client;
m_client_state.client->on_web_content_process_crash = [this] {
Core::deferred_invoke([this] {
handle_web_content_process_crash();
});
};
m_client_state.client_handle = Web::Crypto::generate_random_uuid().release_value_but_fixme_should_propagate_errors();
client().async_set_window_handle(m_client_state.client_handle);
client().async_set_device_pixels_per_css_pixel(m_device_pixel_ratio);
update_palette();
client().async_update_system_fonts(Gfx::FontDatabase::default_font_query(), Gfx::FontDatabase::fixed_width_font_query(), Gfx::FontDatabase::window_title_font_query());
// FIXME: Get the screen rect.
// client().async_update_screen_rects(GUI::Desktop::the().rects(), GUI::Desktop::the().main_screen_index());
if (!m_webdriver_content_ipc_path.is_empty())
client().async_connect_to_webdriver(m_webdriver_content_ipc_path);
}
void WebContentView::handle_web_content_process_crash()
{
dbgln("WebContent process crashed!");
create_client();
VERIFY(m_client_state.client);
// Don't keep a stale backup bitmap around.
m_backup_bitmap = nullptr;
handle_resize();
StringBuilder builder;
builder.append("<html><head><title>Crashed: "sv);
builder.append(escape_html_entities(m_url.to_deprecated_string()));
builder.append("</title></head><body>"sv);
builder.append("<h1>Web page crashed"sv);
if (!m_url.host().is_empty()) {
builder.appendff(" on {}", escape_html_entities(m_url.host()));
}
builder.append("</h1>"sv);
auto escaped_url = escape_html_entities(m_url.to_deprecated_string());
builder.appendff("The web page <a href=\"{}\">{}</a> has crashed.<br><br>You can reload the page to try again.", escaped_url, escaped_url);
builder.append("</body></html>"sv);
load_html(builder.to_deprecated_string(), m_url);
}
void WebContentView::notify_server_did_paint(Badge<WebContentClient>, i32 bitmap_id)
{
if (m_client_state.back_bitmap.id == bitmap_id) {
m_client_state.has_usable_bitmap = true;
m_client_state.back_bitmap.pending_paints--;
swap(m_client_state.back_bitmap, m_client_state.front_bitmap);
// We don't need the backup bitmap anymore, so drop it.
m_backup_bitmap = nullptr;
viewport()->update();
if (m_client_state.got_repaint_requests_while_painting) {
m_client_state.got_repaint_requests_while_painting = false;
request_repaint();
}
}
}
void WebContentView::notify_server_did_invalidate_content_rect(Badge<WebContentClient>, [[maybe_unused]] Gfx::IntRect const& content_rect)
{
request_repaint();
}
void WebContentView::notify_server_did_change_selection(Badge<WebContentClient>)
{
request_repaint();
}
void WebContentView::notify_server_did_request_cursor_change(Badge<WebContentClient>, Gfx::StandardCursor cursor)
{
switch (cursor) {
case Gfx::StandardCursor::Hidden:
setCursor(Qt::BlankCursor);
break;
case Gfx::StandardCursor::Arrow:
setCursor(Qt::ArrowCursor);
break;
case Gfx::StandardCursor::Crosshair:
setCursor(Qt::CrossCursor);
break;
case Gfx::StandardCursor::IBeam:
setCursor(Qt::IBeamCursor);
break;
case Gfx::StandardCursor::ResizeHorizontal:
setCursor(Qt::SizeHorCursor);
break;
case Gfx::StandardCursor::ResizeVertical:
setCursor(Qt::SizeVerCursor);
break;
case Gfx::StandardCursor::ResizeDiagonalTLBR:
setCursor(Qt::SizeFDiagCursor);
break;
case Gfx::StandardCursor::ResizeDiagonalBLTR:
setCursor(Qt::SizeBDiagCursor);
break;
case Gfx::StandardCursor::ResizeColumn:
setCursor(Qt::SplitHCursor);
break;
case Gfx::StandardCursor::ResizeRow:
setCursor(Qt::SplitVCursor);
break;
case Gfx::StandardCursor::Hand:
setCursor(Qt::PointingHandCursor);
break;
case Gfx::StandardCursor::Help:
setCursor(Qt::WhatsThisCursor);
break;
case Gfx::StandardCursor::Drag:
setCursor(Qt::ClosedHandCursor);
break;
case Gfx::StandardCursor::DragCopy:
setCursor(Qt::DragCopyCursor);
break;
case Gfx::StandardCursor::Move:
setCursor(Qt::DragMoveCursor);
break;
case Gfx::StandardCursor::Wait:
setCursor(Qt::BusyCursor);
break;
case Gfx::StandardCursor::Disallowed:
setCursor(Qt::ForbiddenCursor);
break;
case Gfx::StandardCursor::Eyedropper:
case Gfx::StandardCursor::Zoom:
// FIXME: No corresponding Qt cursors, default to Arrow
default:
setCursor(Qt::ArrowCursor);
break;
}
}
void WebContentView::notify_server_did_layout(Badge<WebContentClient>, Gfx::IntSize content_size)
{
verticalScrollBar()->setMinimum(0);
verticalScrollBar()->setMaximum(content_size.height() - m_viewport_rect.height());
verticalScrollBar()->setPageStep(m_viewport_rect.height());
horizontalScrollBar()->setMinimum(0);
horizontalScrollBar()->setMaximum(content_size.width() - m_viewport_rect.width());
horizontalScrollBar()->setPageStep(m_viewport_rect.width());
}
void WebContentView::notify_server_did_change_title(Badge<WebContentClient>, DeprecatedString const& title)
{
emit title_changed(qstring_from_ak_deprecated_string(title));
}
void WebContentView::notify_server_did_request_scroll(Badge<WebContentClient>, i32 x_delta, i32 y_delta)
{
horizontalScrollBar()->setValue(horizontalScrollBar()->value() + x_delta);
verticalScrollBar()->setValue(verticalScrollBar()->value() + y_delta);
}
void WebContentView::notify_server_did_request_scroll_to(Badge<WebContentClient>, Gfx::IntPoint scroll_position)
{
horizontalScrollBar()->setValue(scroll_position.x());
verticalScrollBar()->setValue(scroll_position.y());
}
void WebContentView::notify_server_did_request_scroll_into_view(Badge<WebContentClient>, Gfx::IntRect const& rect)
{
if (m_viewport_rect.contains(rect))
return;
if (rect.top() < m_viewport_rect.top()) {
verticalScrollBar()->setValue(rect.top());
} else if (rect.top() > m_viewport_rect.top() && rect.bottom() > m_viewport_rect.bottom()) {
verticalScrollBar()->setValue(rect.bottom() - m_viewport_rect.height() + 1);
}
}
void WebContentView::notify_server_did_enter_tooltip_area(Badge<WebContentClient>, Gfx::IntPoint content_position, DeprecatedString const& tooltip)
{
auto widget_position = to_widget(content_position);
QToolTip::showText(
mapToGlobal(QPoint(widget_position.x(), widget_position.y())),
qstring_from_ak_deprecated_string(tooltip),
this);
}
void WebContentView::notify_server_did_leave_tooltip_area(Badge<WebContentClient>)
{
QToolTip::hideText();
}
void WebContentView::notify_server_did_hover_link(Badge<WebContentClient>, AK::URL const& url)
{
emit link_hovered(qstring_from_ak_deprecated_string(url.to_deprecated_string()));
}
void WebContentView::notify_server_did_unhover_link(Badge<WebContentClient>)
{
emit link_unhovered();
}
void WebContentView::notify_server_did_click_link(Badge<WebContentClient>, AK::URL const& url, DeprecatedString const& target, unsigned int modifiers)
{
if (on_link_click) {
on_link_click(url, target, modifiers);
}
}
void WebContentView::notify_server_did_middle_click_link(Badge<WebContentClient>, AK::URL const& url, DeprecatedString const& target, unsigned int modifiers)
{
if (on_link_middle_click) {
on_link_middle_click(url, target, modifiers);
}
}
void WebContentView::notify_server_did_start_loading(Badge<WebContentClient>, AK::URL const& url, bool is_redirect)
{
m_url = url;
emit load_started(url, is_redirect);
if (m_inspector_widget)
m_inspector_widget->clear_dom_json();
}
void WebContentView::notify_server_did_finish_loading(Badge<WebContentClient>, AK::URL const& url)
{
m_url = url;
if (is_inspector_open()) {
inspect_dom_tree();
inspect_accessibility_tree();
}
if (on_load_finish)
on_load_finish(url);
}
void WebContentView::notify_server_did_request_navigate_back(Badge<WebContentClient>)
{
emit navigate_back();
}
void WebContentView::notify_server_did_request_navigate_forward(Badge<WebContentClient>)
{
emit navigate_forward();
}
void WebContentView::notify_server_did_request_refresh(Badge<WebContentClient>)
{
emit refresh();
}
void WebContentView::notify_server_did_request_context_menu(Badge<WebContentClient>, Gfx::IntPoint content_position)
{
// FIXME
(void)content_position;
}
void WebContentView::notify_server_did_request_link_context_menu(Badge<WebContentClient>, Gfx::IntPoint content_position, AK::URL const& url, DeprecatedString const&, unsigned)
{
// FIXME
(void)content_position;
(void)url;
}
void WebContentView::notify_server_did_request_image_context_menu(Badge<WebContentClient>, Gfx::IntPoint content_position, AK::URL const& url, DeprecatedString const&, unsigned, Gfx::ShareableBitmap const& bitmap)
{
// FIXME
(void)content_position;
(void)url;
(void)bitmap;
}
void WebContentView::notify_server_did_request_alert(Badge<WebContentClient>, String const& message)
{
m_dialog = new QMessageBox(QMessageBox::Icon::Warning, "Ladybird", qstring_from_ak_string(message), QMessageBox::StandardButton::Ok, this);
m_dialog->exec();
client().async_alert_closed();
m_dialog = nullptr;
}
void WebContentView::notify_server_did_request_confirm(Badge<WebContentClient>, String const& message)
{
m_dialog = new QMessageBox(QMessageBox::Icon::Question, "Ladybird", qstring_from_ak_string(message), QMessageBox::StandardButton::Ok | QMessageBox::StandardButton::Cancel, this);
auto result = m_dialog->exec();
client().async_confirm_closed(result == QMessageBox::StandardButton::Ok || result == QDialog::Accepted);
m_dialog = nullptr;
}
void WebContentView::notify_server_did_request_prompt(Badge<WebContentClient>, String const& message, String const& default_)
{
m_dialog = new QInputDialog(this);
auto& dialog = static_cast<QInputDialog&>(*m_dialog);
dialog.setWindowTitle("Ladybird");
dialog.setLabelText(qstring_from_ak_string(message));
dialog.setTextValue(qstring_from_ak_string(default_));
if (dialog.exec() == QDialog::Accepted)
client().async_prompt_closed(ak_string_from_qstring(dialog.textValue()).release_value_but_fixme_should_propagate_errors());
else
client().async_prompt_closed({});
m_dialog = nullptr;
}
void WebContentView::notify_server_did_request_set_prompt_text(Badge<WebContentClient>, String const& message)
{
if (m_dialog && is<QInputDialog>(*m_dialog))
static_cast<QInputDialog&>(*m_dialog).setTextValue(qstring_from_ak_string(message));
}
void WebContentView::notify_server_did_request_accept_dialog(Badge<WebContentClient>)
{
if (m_dialog)
m_dialog->accept();
}
void WebContentView::notify_server_did_request_dismiss_dialog(Badge<WebContentClient>)
{
if (m_dialog)
m_dialog->reject();
}
void WebContentView::notify_server_did_get_source(AK::URL const& url, DeprecatedString const& source)
{
emit got_source(url, qstring_from_ak_deprecated_string(source));
}
void WebContentView::notify_server_did_get_dom_tree(DeprecatedString const& dom_tree)
{
if (on_get_dom_tree)
on_get_dom_tree(dom_tree);
if (m_inspector_widget)
m_inspector_widget->set_dom_json(dom_tree);
}
void WebContentView::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)
{
if (on_get_dom_node_properties)
on_get_dom_node_properties(node_id, specified_style, computed_style, custom_properties, node_box_sizing);
}
void WebContentView::notify_server_did_output_js_console_message(i32 message_index)
{
if (m_console_widget)
m_console_widget->notify_about_new_console_message(message_index);
}
void WebContentView::notify_server_did_get_js_console_messages(i32 start_index, Vector<DeprecatedString> const& message_types, Vector<DeprecatedString> const& messages)
{
if (m_console_widget)
m_console_widget->handle_console_messages(start_index, message_types, messages);
}
void WebContentView::notify_server_did_change_favicon(Gfx::Bitmap const& bitmap)
{
auto qimage = QImage(bitmap.scanline_u8(0), bitmap.width(), bitmap.height(), QImage::Format_ARGB32);
if (qimage.isNull())
return;
auto qpixmap = QPixmap::fromImage(qimage);
if (qpixmap.isNull())
return;
emit favicon_changed(QIcon(qpixmap));
}
Vector<Web::Cookie::Cookie> WebContentView::notify_server_did_request_all_cookies(Badge<WebContentClient>, AK::URL const& url)
{
if (on_get_all_cookies)
return on_get_all_cookies(url);
return {};
}
Optional<Web::Cookie::Cookie> WebContentView::notify_server_did_request_named_cookie(Badge<WebContentClient>, AK::URL const& url, DeprecatedString const& name)
{
if (on_get_named_cookie)
return on_get_named_cookie(url, name);
return {};
}
DeprecatedString WebContentView::notify_server_did_request_cookie(Badge<WebContentClient>, AK::URL const& url, Web::Cookie::Source source)
{
if (on_get_cookie)
return on_get_cookie(url, source);
return {};
}
void WebContentView::notify_server_did_set_cookie(Badge<WebContentClient>, AK::URL const& url, Web::Cookie::ParsedCookie const& cookie, Web::Cookie::Source source)
{
if (on_set_cookie)
on_set_cookie(url, cookie, source);
}
void WebContentView::notify_server_did_update_cookie(Badge<WebContentClient>, Web::Cookie::Cookie const& cookie)
{
if (on_update_cookie)
on_update_cookie(cookie);
}
void WebContentView::notify_server_did_close_browsing_context(Badge<WebContentClient>)
{
emit close();
}
String WebContentView::notify_server_did_request_new_tab(Badge<WebContentClient>, Web::HTML::ActivateTab activate_tab)
{
if (on_new_tab)
return on_new_tab(activate_tab);
return {};
}
void WebContentView::notify_server_did_request_activate_tab(Badge<WebContentClient>)
{
emit activate_tab();
}
void WebContentView::notify_server_did_update_resource_count(i32 count_waiting)
{
// FIXME
(void)count_waiting;
}
void WebContentView::notify_server_did_request_restore_window()
{
emit restore_window();
}
Gfx::IntPoint WebContentView::notify_server_did_request_reposition_window(Gfx::IntPoint position)
{
return emit reposition_window(position);
}
Gfx::IntSize WebContentView::notify_server_did_request_resize_window(Gfx::IntSize size)
{
return emit resize_window(size);
}
Gfx::IntRect WebContentView::notify_server_did_request_maximize_window()
{
return emit maximize_window();
}
Gfx::IntRect WebContentView::notify_server_did_request_minimize_window()
{
return emit minimize_window();
}
Gfx::IntRect WebContentView::notify_server_did_request_fullscreen_window()
{
return emit fullscreen_window();
}
void WebContentView::notify_server_did_request_file(Badge<WebContentClient>, DeprecatedString const& path, i32 request_id)
{
auto file = Core::File::open(path, Core::File::OpenMode::Read);
if (file.is_error())
client().async_handle_file_return(file.error().code(), {}, request_id);
else
client().async_handle_file_return(0, IPC::File(*file.value()), request_id);
}
void WebContentView::request_repaint()
{
// If this widget was instantiated but not yet added to a window,
// it won't have a back bitmap yet, so we can just skip repaint requests.
if (!m_client_state.back_bitmap.bitmap)
return;
// Don't request a repaint until pending paint requests have finished.
if (m_client_state.back_bitmap.pending_paints) {
m_client_state.got_repaint_requests_while_painting = true;
return;
}
m_client_state.back_bitmap.pending_paints++;
client().async_paint(m_client_state.back_bitmap.bitmap->rect().translated(horizontalScrollBar()->value(), verticalScrollBar()->value()), m_client_state.back_bitmap.id);
}
bool WebContentView::event(QEvent* event)
{
// NOTE: We have to implement event() manually as Qt's focus navigation mechanism
// eats all the Tab key presses by default.
if (event->type() == QEvent::KeyPress) {
keyPressEvent(static_cast<QKeyEvent*>(event));
return true;
}
if (event->type() == QEvent::KeyRelease) {
keyReleaseEvent(static_cast<QKeyEvent*>(event));
return true;
}
if (event->type() == QEvent::PaletteChange) {
update_palette();
request_repaint();
return QAbstractScrollArea::event(event);
}
return QAbstractScrollArea::event(event);
}
void WebContentView::notify_server_did_finish_handling_input_event(bool event_was_accepted)
{
// FIXME: Currently Ladybird handles the keyboard shortcuts before passing the event to web content, so
// we don't need to do anything here. But we'll need to once we start asking web content first.
(void)event_was_accepted;
}
void WebContentView::notify_server_did_get_accessibility_tree(DeprecatedString const& accessibility_json)
{
if (m_inspector_widget)
m_inspector_widget->set_accessibility_json(accessibility_json);
}
ErrorOr<String> WebContentView::dump_layout_tree()
{
return String::from_deprecated_string(client().dump_layout_tree());
}
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