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LibWeb: Make handle_mousewheel wheel delta use pixels

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Bastiaan van der Plaat 2023-08-14 09:44:31 +02:00 committed by Andrew Kaster
parent 7d588db6c8
commit 0facfd3257
Notes: sideshowbarker 2024-07-17 08:43:11 +09:00 
Author: https://github.com/bplaat
Commit: https://github.com/SerenityOS/serenity/commit/0facfd3257
Pull-request: https://github.com/SerenityOS/serenity/pull/20460
Reviewed-by: https://github.com/MacDue
Reviewed-by: https://github.com/kalenikaliaksandr
3 changed files with 9 additions and 8 deletions
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4
Ladybird/Qt/WebContentView.cpp
View file

@ -285,10 +285,10 @@ void WebContentView::wheelEvent(QWheelEvent* 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);
constexpr int scroll_step_size = 24;
client().async_mouse_wheel(to_content_position(position), button, buttons, modifiers, step_x * scroll_step_size, step_y * scroll_step_size);
event->accept();
return;
}

6
Userland/Libraries/LibWeb/Page/EventHandler.cpp
View file

@ -146,8 +146,6 @@ Painting::PaintableBox const* EventHandler::paint_root() const
bool EventHandler::handle_mousewheel(CSSPixelPoint position, unsigned button, unsigned buttons, unsigned int modifiers, int wheel_delta_x, int wheel_delta_y)
{
constexpr int scroll_step_size = 24;
if (m_browsing_context->active_document())
m_browsing_context->active_document()->update_layout();
@ -167,7 +165,7 @@ bool EventHandler::handle_mousewheel(CSSPixelPoint position, unsigned button, un
auto* containing_block = paintable->containing_block();
while (containing_block) {
if (containing_block->is_user_scrollable()) {
const_cast<Painting::PaintableBox*>(containing_block->paintable_box())->handle_mousewheel({}, position, buttons, modifiers, wheel_delta_x * scroll_step_size, wheel_delta_y * scroll_step_size);
const_cast<Painting::PaintableBox*>(containing_block->paintable_box())->handle_mousewheel({}, position, buttons, modifiers, wheel_delta_x, wheel_delta_y);
break;
}
containing_block = containing_block->containing_block();
@ -192,7 +190,7 @@ bool EventHandler::handle_mousewheel(CSSPixelPoint position, unsigned button, un
if (node->dispatch_event(UIEvents::WheelEvent::create_from_platform_event(node->realm(), UIEvents::EventNames::wheel, offset.x(), offset.y(), position.x(), position.y(), wheel_delta_x, wheel_delta_y, buttons, button).release_value_but_fixme_should_propagate_errors())) {
if (auto* page = m_browsing_context->page()) {
if (m_browsing_context == &page->top_level_browsing_context())
page->client().page_did_request_scroll(wheel_delta_x * scroll_step_size, wheel_delta_y * scroll_step_size);
page->client().page_did_request_scroll(wheel_delta_x, wheel_delta_y);
}
}

7
Userland/Libraries/LibWebView/OutOfProcessWebView.cpp
View file

@ -423,9 +423,12 @@ void OutOfProcessWebView::process_next_input_event()
case GUI::Event::Type::MouseMove:
client().async_mouse_move(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers());
break;
case GUI::Event::Type::MouseWheel:
client().async_mouse_wheel(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y());
case GUI::Event::Type::MouseWheel: {
// FIXME: This wheel delta step size multiplier is used to remain the old scroll behaviour, in future use system step size.
constexpr int scroll_step_size = 24;
client().async_mouse_wheel(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x() * scroll_step_size, event.wheel_delta_y() * scroll_step_size);
break;
}
case GUI::Event::Type::MouseDoubleClick:
client().async_doubleclick(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers());
break;