Only support left/right maximizing at 50% width when the --ash-enable-alternate-caption-button

ash/ash_switches.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 "ash/ash_switches.h"
 
 #include "base/command_line.h"
 
 namespace ash {
 namespace switches {
@@ skipping 26 matching lines @@
 // non-user-writable JPEG files).
 const char kAshDefaultGuestWallpaperLarge[] =
     "ash-default-guest-wallpaper-large";
 const char kAshDefaultGuestWallpaperSmall[] =
     "ash-default-guest-wallpaper-small";
 
 // Default wallpaper to use (as paths to trusted, non-user-writable JPEG files).
 const char kAshDefaultWallpaperLarge[] = "ash-default-wallpaper-large";
 const char kAshDefaultWallpaperSmall[] = "ash-default-wallpaper-small";
 
+// Use the normal visual style for the caption buttons (minimize, maximize,
+// restore, close).
+const char kAshDisableAlternateFrameCaptionButtonStyle[] =
+    "ash-disable-alternate-caption-button";
+
 // Disable the alternate shelf layout.
 const char kAshDisableAlternateShelfLayout[] =
     "ash-disable-alternate-shelf-layout";
 
 #if defined(OS_CHROMEOS)
 // Disable the status tray volume menu for allowing the user to choose an audio
 // input and output device.
 const char kAshDisableAudioDeviceMenu[] =
     "ash-disable-audio-device-menu";
 #endif
@@ skipping 23 matching lines @@
 
 // TODO(jamescook): Remove this unused flag. It exists only to allow the
 // "Enable audio device menu" about:flags item to have the tri-state
 // default/enabled/disabled UI.
 const char kAshEnableAudioDeviceMenu[] = "ash-enable-audio-device-menu";
 #endif  // defined(OS_CHROMEOS)
 
 // Enable advanced gestures (e.g. for window management).
 const char kAshEnableAdvancedGestures[] = "ash-enable-advanced-gestures";
 
+// Use alternate visual style for the caption buttons (minimize, maximize,
+// restore, close). The alternate style:
+// - Adds a dedicated button for minimize.
+// - Increases the height of the maximized header.
+// - Removes the maximize button's help bubble.
+// - Switches snapping a window left/right to be always 50%.
+const char kAshEnableAlternateFrameCaptionButtonStyle[] =
+    "ash-enable-alternate-caption-button";
+
 // Always enable brightness control. Used by machines that don't report their
 // main monitor as internal.
 const char kAshEnableBrightnessControl[] = "ash-enable-brightness-control";
 
 // Enable the dock area on a desktop.
 const char kAshEnableDockedWindows[] = "ash-enable-docked-windows";
 
 // Disable dragging items off the shelf to unpin them.
 const char kAshDisableDragOffShelf[] = "ash-disable-drag-off-shelf";
 
@@ skipping 76 matching lines @@
 #endif
 
 // Disallow items to be dragged from the app launcher list into the launcher.
 const char kAshDisableDragAndDropAppListToLauncher[] =
     "ash-disable-drag-and-drop-applist-to-launcher";
 
 // Enables a mode which enforces all browser & application windows to be created
 // in maximized mode.
 const char kForcedMaximizeMode[] = "forced-maximize-mode";
 
+bool UseAlternateFrameCaptionButtonStyle() {
+  return CommandLine::ForCurrentProcess()->
+      HasSwitch(kAshEnableAlternateFrameCaptionButtonStyle);
+}
+
 bool UseAlternateShelfLayout() {
   return !CommandLine::ForCurrentProcess()->
-      HasSwitch(ash::switches::kAshDisableAlternateShelfLayout);
+      HasSwitch(kAshDisableAlternateShelfLayout);
 }
 
 bool UseDragOffShelf() {
   return !CommandLine::ForCurrentProcess()->
-      HasSwitch(ash::switches::kAshDisableDragOffShelf);
+      HasSwitch(kAshDisableDragOffShelf);
 }
 
 bool ShowShelfAlignmentMenu() {
   return !CommandLine::ForCurrentProcess()->
-      HasSwitch(switches::kHideShelfAlignmentMenu);
+      HasSwitch(kHideShelfAlignmentMenu);
 }
 
 #if defined(OS_CHROMEOS)
 bool ShowAudioDeviceMenu() {
   return !CommandLine::ForCurrentProcess()->
-      HasSwitch(ash::switches::kAshDisableAudioDeviceMenu);
+      HasSwitch(kAshDisableAudioDeviceMenu);
 }
 
 bool UseUsbChargerNotification() {
   return !CommandLine::ForCurrentProcess()->
-      HasSwitch(ash::switches::kAshDisableUsbChargerNotification);
+      HasSwitch(kAshDisableUsbChargerNotification);
 }
 #endif
 
 }  // namespace switches
 }  // namespace ash