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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 "extensions/shell/browser/shell_screen.h"
#include <stdint.h>
#include <vector>
#include "base/logging.h"
#include "ui/aura/env.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_widget_types.h"
namespace extensions {
namespace {
const int64_t kDisplayId = 0;
} // namespace
ShellScreen::ShellScreen(const gfx::Size& size) : host_(nullptr) {
DCHECK(!size.IsEmpty());
// Screen is positioned at (0,0).
display::Display display(kDisplayId);
gfx::Rect bounds(size);
display.SetScaleAndBounds(1.0f, bounds);
ProcessDisplayChanged(display, true /* is_primary */);
}
ShellScreen::~ShellScreen() {
DCHECK(!host_) << "Window not closed before destroying ShellScreen";
}
aura::WindowTreeHost* ShellScreen::CreateHostForPrimaryDisplay() {
DCHECK(!host_);
host_ = aura::WindowTreeHost::Create(
gfx::Rect(GetPrimaryDisplay().GetSizeInPixel()));
host_->window()->AddObserver(this);
host_->InitHost();
host_->window()->Show();
return host_;
}
// aura::WindowObserver overrides:
void ShellScreen::OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) {
DCHECK_EQ(host_->window(), window);
display::Display display(GetPrimaryDisplay());
display.SetSize(new_bounds.size());
display_list().UpdateDisplay(display);
}
void ShellScreen::OnWindowDestroying(aura::Window* window) {
DCHECK_EQ(host_->window(), window);
host_->window()->RemoveObserver(this);
host_ = nullptr;
}
// display::Screen overrides:
gfx::Point ShellScreen::GetCursorScreenPoint() {
return aura::Env::GetInstance()->last_mouse_location();
}
bool ShellScreen::IsWindowUnderCursor(gfx::NativeWindow window) {
return GetWindowAtScreenPoint(GetCursorScreenPoint()) == window;
}
gfx::NativeWindow ShellScreen::GetWindowAtScreenPoint(const gfx::Point& point) {
return host_->window()->GetTopWindowContainingPoint(point);
}
display::Display ShellScreen::GetDisplayNearestWindow(
gfx::NativeWindow window) const {
return GetPrimaryDisplay();
}
} // namespace extensions
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