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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "ash/host/ash_window_tree_host.h"
- #include <memory>
- #include "ash/constants/ash_switches.h"
- #include "ash/host/ash_window_tree_host_init_params.h"
- #include "ash/host/ash_window_tree_host_mirroring_unified.h"
- #include "ash/host/ash_window_tree_host_platform.h"
- #include "ash/host/ash_window_tree_host_unified.h"
- #include "base/command_line.h"
- #include "base/system/sys_info.h"
- #include "ui/aura/client/screen_position_client.h"
- #include "ui/aura/env.h"
- #include "ui/aura/window_tree_host.h"
- #include "ui/events/event.h"
- #include "ui/gfx/geometry/insets.h"
- #include "ui/gfx/geometry/rect.h"
- #include "ui/platform_window/platform_window_init_properties.h"
- namespace ash {
- namespace {
- bool GetAllowConfineCursor() {
- return base::SysInfo::IsRunningOnChromeOS() ||
- base::CommandLine::ForCurrentProcess()->HasSwitch(
- switches::kAshConstrainPointerToRoot);
- }
- } // namespace
- AshWindowTreeHost::AshWindowTreeHost()
- : allow_confine_cursor_(GetAllowConfineCursor()) {}
- AshWindowTreeHost::~AshWindowTreeHost() = default;
- void AshWindowTreeHost::TranslateLocatedEvent(ui::LocatedEvent* event) {
- if (event->IsTouchEvent())
- return;
- aura::WindowTreeHost* wth = AsWindowTreeHost();
- aura::Window* root_window = wth->window();
- aura::client::ScreenPositionClient* screen_position_client =
- aura::client::GetScreenPositionClient(root_window);
- gfx::Rect local(wth->GetBoundsInPixels().size());
- local.Inset(GetHostInsets());
- if (screen_position_client && !local.Contains(event->location())) {
- gfx::Point location(event->location());
- // In order to get the correct point in screen coordinates
- // during passive grab, we first need to find on which host window
- // the mouse is on, and find out the screen coordinates on that
- // host window, then convert it back to this host window's coordinate.
- screen_position_client->ConvertHostPointToScreen(root_window, &location);
- screen_position_client->ConvertPointFromScreen(root_window, &location);
- wth->ConvertDIPToPixels(&location);
- event->set_location(location);
- event->set_root_location(location);
- }
- }
- // static
- std::unique_ptr<AshWindowTreeHost> AshWindowTreeHost::Create(
- const AshWindowTreeHostInitParams& init_params) {
- if (init_params.mirroring_unified) {
- return std::make_unique<AshWindowTreeHostMirroringUnified>(
- init_params.initial_bounds, init_params.display_id,
- init_params.delegate);
- }
- if (init_params.offscreen) {
- return std::make_unique<AshWindowTreeHostUnified>(
- init_params.initial_bounds, init_params.delegate,
- init_params.compositor_memory_limit_mb);
- }
- ui::PlatformWindowInitProperties properties{init_params.initial_bounds};
- properties.enable_compositing_based_throttling = true;
- properties.compositor_memory_limit_mb =
- init_params.compositor_memory_limit_mb;
- return std::make_unique<AshWindowTreeHostPlatform>(std::move(properties),
- init_params.delegate);
- }
- } // namespace ash
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