Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/ui/panels/display_settings_provider.cc

-// Copyright (c) 2012 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 "chrome/browser/ui/panels/display_settings_provider.h"
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "build/build_config.h"
-#include "chrome/browser/fullscreen.h"
-#include "ui/display/display.h"
-#include "ui/display/screen.h"
-
-namespace {
-// The polling interval to check any display settings change, like full-screen
-// mode changes.
-const int kFullScreenModeCheckIntervalMs = 1000;
-}  // namespace
-
-DisplaySettingsProvider::DisplaySettingsProvider()
-    : is_full_screen_(false) {
-}
-
-DisplaySettingsProvider::~DisplaySettingsProvider() {
-}
-
-void DisplaySettingsProvider::AddDisplayObserver(DisplayObserver* observer) {
-  display_observers_.AddObserver(observer);
-}
-
-void DisplaySettingsProvider::RemoveDisplayObserver(DisplayObserver* observer) {
-  display_observers_.RemoveObserver(observer);
-}
-
-void DisplaySettingsProvider::AddDesktopBarObserver(
-    DesktopBarObserver* observer) {
-  desktop_bar_observers_.AddObserver(observer);
-}
-
-void DisplaySettingsProvider::RemoveDesktopBarObserver(
-    DesktopBarObserver* observer) {
-  desktop_bar_observers_.RemoveObserver(observer);
-}
-
-void DisplaySettingsProvider::AddFullScreenObserver(
-    FullScreenObserver* observer) {
-  is_full_screen_ = IsFullScreen();
-  bool already_started = full_screen_observers_.might_have_observers();
-  full_screen_observers_.AddObserver(observer);
-
-  if (!already_started && NeedsPeriodicFullScreenCheck()) {
-    full_screen_mode_timer_.Start(FROM_HERE,
-        base::TimeDelta::FromMilliseconds(kFullScreenModeCheckIntervalMs),
-        base::Bind(&DisplaySettingsProvider::CheckFullScreenMode,
-                   base::Unretained(this),
-                   PERFORM_FULLSCREEN_CHECK));
-  }
-}
-
-void DisplaySettingsProvider::RemoveFullScreenObserver(
-    FullScreenObserver* observer) {
-  full_screen_observers_.RemoveObserver(observer);
-
-  if (!full_screen_observers_.might_have_observers())
-    full_screen_mode_timer_.Stop();
-}
-
-// TODO(scottmg): This should be moved to ui/.
-gfx::Rect DisplaySettingsProvider::GetPrimaryDisplayArea() const {
-  return display::Screen::GetScreen()->GetPrimaryDisplay().bounds();
-}
-
-gfx::Rect DisplaySettingsProvider::GetPrimaryWorkArea() const {
-#if defined(OS_MACOSX)
-  // On OSX, panels should be dropped all the way to the bottom edge of the
-  // screen (and overlap Dock). And we also want to exclude the system menu
-  // area. Note that the rect returned from display::Screen util functions is in
-  // platform-independent screen coordinates with (0, 0) as the top-left corner.
-  display::Display display = display::Screen::GetScreen()->GetPrimaryDisplay();
-  gfx::Rect display_area = display.bounds();
-  gfx::Rect work_area = display.work_area();
-  int system_menu_height = work_area.y() - display_area.y();
-  if (system_menu_height > 0) {
-    display_area.set_y(display_area.y() + system_menu_height);
-    display_area.set_height(display_area.height() - system_menu_height);
-  }
-  return display_area;
-#else
-  return display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
-#endif
-}
-
-gfx::Rect DisplaySettingsProvider::GetDisplayAreaMatching(
-    const gfx::Rect& bounds) const {
-  return display::Screen::GetScreen()->GetDisplayMatching(bounds).bounds();
-}
-
-gfx::Rect DisplaySettingsProvider::GetWorkAreaMatching(
-    const gfx::Rect& bounds) const {
-  display::Screen* screen = display::Screen::GetScreen();
-  display::Display display = screen->GetDisplayMatching(bounds);
-  if (display.bounds() == screen->GetPrimaryDisplay().bounds())
-    return GetPrimaryWorkArea();
-  return display.work_area();
-}
-
-void DisplaySettingsProvider::OnDisplaySettingsChanged() {
-  FOR_EACH_OBSERVER(DisplayObserver, display_observers_, OnDisplayChanged());
-}
-
-bool DisplaySettingsProvider::IsAutoHidingDesktopBarEnabled(
-    DesktopBarAlignment alignment) {
-  return false;
-}
-
-int DisplaySettingsProvider::GetDesktopBarThickness(
-    DesktopBarAlignment alignment) const {
-  return 0;
-}
-
-DisplaySettingsProvider::DesktopBarVisibility
-DisplaySettingsProvider::GetDesktopBarVisibility(
-    DesktopBarAlignment alignment) const {
-  return DESKTOP_BAR_VISIBLE;
-}
-
-bool DisplaySettingsProvider::NeedsPeriodicFullScreenCheck() const {
-  return true;
-}
-
-void DisplaySettingsProvider::CheckFullScreenMode(
-    FullScreenCheckMode check_mode) {
-  bool is_full_screen = false;
-  switch (check_mode) {
-    case ASSUME_FULLSCREEN_ON:
-      is_full_screen = true;
-      break;
-    case ASSUME_FULLSCREEN_OFF:
-      is_full_screen = false;
-      break;
-    case PERFORM_FULLSCREEN_CHECK:
-      is_full_screen = IsFullScreen();
-      break;
-    default:
-      NOTREACHED();
-      break;
-  }
-  if (is_full_screen == is_full_screen_)
-    return;
-  is_full_screen_ = is_full_screen;
-
-  FOR_EACH_OBSERVER(FullScreenObserver,
-                    full_screen_observers_,
-                    OnFullScreenModeChanged(is_full_screen_));
-}
-
-bool DisplaySettingsProvider::IsFullScreen() {
-  return IsFullScreenMode();
-}
-
-#if defined(USE_AURA)
-// static
-DisplaySettingsProvider* DisplaySettingsProvider::Create() {
-  return new DisplaySettingsProvider();
-}
-#endif