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// Copyright 2014 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/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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