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ash / game_dashboard / game_dashboard_main_menu_cursor_handler.cc [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/game_dashboard/game_dashboard_main_menu_cursor_handler.h"
#include "ash/game_dashboard/game_dashboard_context.h"
#include "ash/shell.h"
#include "chromeos/ui/frame/frame_header.h"
#include "ui/wm/core/cursor_manager.h"
namespace ash {
GameDashboardMainMenuCursorHandler::GameDashboardMainMenuCursorHandler(
GameDashboardContext* context)
: context_(context), cursor_manager_(Shell::Get()->cursor_manager()) {
CHECK(context_);
CHECK(cursor_manager_);
// Save current state.
cursor_visibility_to_restore_ = cursor_manager_->IsCursorVisible();
cursor_to_restore_ = cursor_manager_->GetCursor();
// Set desired state.
cursor_manager_->ShowCursor();
cursor_manager_->SetCursor(ui::mojom::CursorType::kPointer);
cursor_manager_->LockCursor();
}
GameDashboardMainMenuCursorHandler::~GameDashboardMainMenuCursorHandler() {
cursor_manager_->UnlockCursor();
// Restore state.
cursor_visibility_to_restore_ ? cursor_manager_->ShowCursor()
: cursor_manager_->HideCursor();
cursor_manager_->SetCursor(cursor_to_restore_);
}
void GameDashboardMainMenuCursorHandler::OnMouseEvent(ui::MouseEvent* event) {
// Propagate the `event` if it's inside the window's
// `FrameCaptionButtonContainerView`.
if (!IsEventInWindowFrameHeader(*event)) {
event->StopPropagation();
event->SetHandled();
}
}
bool GameDashboardMainMenuCursorHandler::IsEventInWindowFrameHeader(
const ui::LocatedEvent& event) {
// TODO(b/324268128): Update the logic to handle a LaCrOS window's
// FrameHeader.
if (auto* frame_header = chromeos::FrameHeader::Get(
views::Widget::GetWidgetForNativeWindow(context_->game_window()))) {
const auto* frame_header_view = frame_header->view();
// For apps that use pointer lock, `event.target()` always returns the
// window that has acquired the pointer lock. This pretarget handler cannot
// reliably figure out whether the mouse cursor is located over the game
// window's frame header or not. As a workaround, the logic is using the
// event's screen location to determine whether the mouse event is within
// the painted region of the frame header.
const auto frame_header_painted_region =
gfx::Rect(frame_header_view->GetBoundsInScreen().origin(),
gfx::Size(frame_header_view->width(),
frame_header->GetHeaderHeightForPainting()));
return frame_header_painted_region.Contains(
event.target()->GetScreenLocation(event));
}
return false;
}
} // namespace ash