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ladybird/Ladybird/WebContentView.cpp
MacDue 7b7ba38655 Ladybird: Fix scroll step size 
The Qt docs are not that clear, but to get the number of steps the
wheel was scrolled you divide by 120 (which when multiplied by
wheelScrollLines() gives the scroll offset).
2023-08-05 19:50:17 +02:00

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/*
* Copyright (c) 2022-2023, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2023, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "WebContentView.h"
#include "HelperProcess.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 <Kernel/API/KeyCode.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/EventLoop.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 <LibMain/Main.h>
#include <LibWeb/Crypto/Crypto.h>
#include <LibWeb/Loader/ContentFilter.h>
#include <LibWebView/WebContentClient.h>
#include <QApplication>
#include <QCursor>
#include <QGuiApplication>
#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>
namespace Ladybird {
bool is_using_dark_system_theme(QWidget&);
WebContentView::WebContentView(StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling enable_callgrind_profiling, WebView::UseJavaScriptBytecode use_javascript_bytecode, UseLagomNetworking use_lagom_networking)
: WebView::ViewImplementation(use_javascript_bytecode)
, m_use_lagom_networking(use_lagom_networking)
, 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() = default;
unsigned get_button_from_qt_event(QSinglePointEvent 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(QSinglePointEvent 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(QSinglePointEvent 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;
if (event.modifiers().testFlag(Qt::KeypadModifier))
modifiers |= KeyModifier::Mod_Keypad;
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;
};
// https://doc.qt.io/qt-6/qt.html#Key-enum
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_Enter, Key_Return },
{ Qt::Key_Escape, Key_Escape },
{ Qt::Key_Exclam, Key_ExclamationPoint },
{ 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_Meta, Key_Super },
{ Qt::Key_Minus, Key_Minus },
{ Qt::Key_N, Key_N },
{ Qt::Key_NumberSign, Key_Hashtag },
{ 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_QuoteLeft, Key_Backtick },
{ 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_Super_R, 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::wheelEvent(QWheelEvent* event)
{
if (!event->modifiers().testFlag(Qt::ControlModifier)) {
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);
auto buttons = get_buttons_from_qt_event(*event);
auto modifiers = get_modifiers_from_qt_mouse_event(*event);
auto num_degrees = -event->angleDelta();
float delta_x = -num_degrees.x() / 120;
float delta_y = num_degrees.y() / 120;
// Note: This does not use the QScrollBar's step size as LibWeb multiples this by a step size internally.
auto step_x = delta_x * QApplication::wheelScrollLines() * devicePixelRatio();
auto step_y = delta_y * QApplication::wheelScrollLines() * devicePixelRatio();
client().async_mouse_wheel(to_content_position(position), button, buttons, modifiers, step_x, step_y);
event->accept();
return;
}
event->ignore();
}
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(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(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) {
if (on_back_button)
on_back_button();
} else if (event->button() & Qt::MouseButton::ForwardButton) {
if (on_forward_button)
on_forward_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(position), button, buttons, modifiers);
}
void WebContentView::mouseDoubleClickEvent(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_doubleclick(to_content_position(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();
auto point = text.isEmpty() ? 0u : 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();
auto point = text.isEmpty() ? 0u : 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);
}
void WebContentView::paintEvent(QPaintEvent*)
{
QPainter painter(viewport());
painter.scale(m_inverse_pixel_scaling_ratio, m_inverse_pixel_scaling_ratio);
Gfx::Bitmap const* bitmap = nullptr;
Gfx::IntSize bitmap_size;
if (m_client_state.has_usable_bitmap) {
bitmap = m_client_state.front_bitmap.bitmap.ptr();
bitmap_size = m_client_state.front_bitmap.last_painted_size;
} else {
bitmap = m_backup_bitmap.ptr();
bitmap_size = m_backup_bitmap_size;
}
if (bitmap) {
QImage q_image(bitmap->scanline_u8(0), bitmap->width(), bitmap->height(), QImage::Format_RGB32);
painter.drawImage(QPoint(0, 0), q_image, QRect(0, 0, bitmap_size.width(), bitmap_size.height()));
if (bitmap_size.width() < width()) {
painter.fillRect(bitmap_size.width(), 0, width() - bitmap_size.width(), bitmap->height(), palette().base());
}
if (bitmap_size.height() < height()) {
painter.fillRect(0, bitmap_size.height(), width(), height() - bitmap_size.height(), palette().base());
}
return;
}
painter.fillRect(rect(), palette().base());
}
void WebContentView::resizeEvent(QResizeEvent* event)
{
QAbstractScrollArea::resizeEvent(event);
update_viewport_rect();
handle_resize();
}
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(max(0, horizontalScrollBar()->value()), max(0, verticalScrollBar()->value()), scaled_width, scaled_height);
set_viewport_rect(rect);
request_repaint();
}
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(*this, candidate_web_content_paths, enable_callgrind_profiling, WebView::IsLayoutTestMode::No, use_javascript_bytecode(), m_use_lagom_networking).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());
auto screens = QGuiApplication::screens();
if (!screens.empty()) {
Vector<Gfx::IntRect> screen_rects;
for (auto const& screen : screens) {
auto geometry = screen->geometry();
screen_rects.append(Gfx::IntRect(geometry.x(), geometry.y(), geometry.width(), geometry.height()));
}
// FIXME: Update the screens again when QGuiApplication::screenAdded/Removed signals are emitted
// NOTE: The first item in QGuiApplication::screens is always the primary screen.
// This is not specified in the documentation but QGuiApplication::primaryScreen
// always returns the first item in the list if it isn't empty.
client().async_update_screen_rects(screen_rects, 0);
}
if (!m_webdriver_content_ipc_path.is_empty())
client().async_connect_to_webdriver(m_webdriver_content_ipc_path);
}
void WebContentView::notify_server_did_paint(Badge<WebContentClient>, i32 bitmap_id, Gfx::IntSize size)
{
if (m_client_state.back_bitmap.id == bitmap_id) {
m_client_state.has_usable_bitmap = true;
m_client_state.back_bitmap.pending_paints--;
m_client_state.back_bitmap.last_painted_size = size;
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_request_scroll(Badge<WebContentClient>, i32 x_delta, i32 y_delta)
{
horizontalScrollBar()->setValue(max(0, horizontalScrollBar()->value() + x_delta));
verticalScrollBar()->setValue(max(0, 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());
}
void WebContentView::notify_server_did_enter_tooltip_area(Badge<WebContentClient>, Gfx::IntPoint content_position, DeprecatedString const& tooltip)
{
auto widget_position = to_widget_position(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_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_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);
}
Gfx::IntRect WebContentView::viewport_rect() const
{
return m_viewport_rect;
}
Gfx::IntPoint WebContentView::to_content_position(Gfx::IntPoint widget_position) const
{
return widget_position.translated(max(0, horizontalScrollBar()->value()), max(0, verticalScrollBar()->value()));
}
Gfx::IntPoint WebContentView::to_widget_position(Gfx::IntPoint content_position) const
{
return content_position.translated(-(max(0, horizontalScrollBar()->value())), -(max(0, verticalScrollBar()->value())));
}
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;
}
ErrorOr<String> WebContentView::dump_layout_tree()
{
return String::from_deprecated_string(client().dump_layout_tree());
}
}
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