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LibWeb: Redirect wheel events to iframe if needed in EventHandler

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This commit is contained in:
Aliaksandr Kalenik 2024-02-03 11:01:31 +01:00 • committed by Andreas Kling
parent bf14de4118
commit 0c92c80544
1 changed files with 4 additions and 3 deletions
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7
Userland/Libraries/LibWeb/Page/EventHandler.cpp
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@ -183,6 +183,9 @@ bool EventHandler::handle_mousewheel(CSSPixelPoint position, CSSPixelPoint scree
if (node) {
// FIXME: Support wheel events in nested browsing contexts.
if (is<HTML::HTMLIFrameElement>(*node)) {
auto& iframe = static_cast<HTML::HTMLIFrameElement&>(*node);
auto position_in_iframe = position.translated(compute_mouse_event_offset({}, paintable->layout_node()));
iframe.nested_browsing_context()->event_handler().handle_mousewheel(position_in_iframe, screen_position, button, buttons, modifiers, wheel_delta_x, wheel_delta_y);
return false;
}
@ -195,9 +198,7 @@ bool EventHandler::handle_mousewheel(CSSPixelPoint position, CSSPixelPoint scree
auto client_offset = compute_mouse_event_client_offset(position);
auto page_offset = compute_mouse_event_page_offset(client_offset);
if (node->dispatch_event(UIEvents::WheelEvent::create_from_platform_event(node->realm(), UIEvents::EventNames::wheel, screen_position, page_offset, client_offset, offset, wheel_delta_x, wheel_delta_y, button, buttons, modifiers).release_value_but_fixme_should_propagate_errors())) {
auto& page = m_browsing_context->page();
if (m_browsing_context == &page.top_level_browsing_context())
page.client().page_did_request_scroll(wheel_delta_x, wheel_delta_y);
m_browsing_context->active_window()->scroll_by(wheel_delta_x, wheel_delta_y);
}
handled_event = true;