Fullscreen/immersive mode is allowed in touch view mode, the shelf gets hidden and an edge swipe br…

ash/wm/window_state_util.cc

+// 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/wm/window_state_util.h"
+
+#include "ash/wm/window_state.h"
+#include "ash/wm/window_state_delegate.h"
+#include "ui/aura/client/aura_constants.h"
+
+namespace ash {
+namespace wm {
+
+void ToggleFullScreen(wm::WindowState* window_state,
+                      WindowStateDelegate* delegate) {
+  // Window which cannot be maximized should not be full screen'ed.
+  // It can, however, be restored if it was full screen'ed.
+  bool is_fullscreen = window_state->IsFullscreen();
+  if (!is_fullscreen && !window_state->CanMaximize())
+    return;
+
+  if (delegate && delegate->ToggleFullscreen(window_state))
+    return;
+
+  if (is_fullscreen) {
+    window_state->Restore();
+  } else {
+    // Set the property to activate full screen.
+    window_state->window()->SetProperty(aura::client::kShowStateKey,
+                                        ui::SHOW_STATE_FULLSCREEN);
+  }
+}
+
+}  // namespace wm
+}  // namespace ash