| // 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. |
| |
| #ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_ |
| #define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_ |
| |
| #include "base/callback.h" |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/optional.h" |
| #include "content/common/content_export.h" |
| #include "content/public/browser/web_contents_binding_set.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "services/device/public/mojom/screen_orientation.mojom.h" |
| #include "services/device/public/mojom/screen_orientation_lock_types.mojom.h" |
| #include "third_party/blink/public/common/screen_orientation/web_screen_orientation_lock_type.h" |
| |
| namespace content { |
| |
| class ScreenOrientationDelegate; |
| class WebContents; |
| |
| // Handles screen orientation lock/unlock. Platforms which wish to provide |
| // custom implementations can provide a factory for ScreenOrientationDelegate. |
| class CONTENT_EXPORT ScreenOrientationProvider |
| : public device::mojom::ScreenOrientation, |
| public WebContentsObserver { |
| public: |
| ScreenOrientationProvider(WebContents* web_contents); |
| |
| ~ScreenOrientationProvider() override; |
| |
| // device::mojom::ScreenOrientation: |
| void LockOrientation(blink::WebScreenOrientationLockType orientation, |
| LockOrientationCallback callback) override; |
| void UnlockOrientation() override; |
| |
| // Inform about a screen orientation update. It is called to let the provider |
| // know if a lock has been resolved. |
| void OnOrientationChange(); |
| |
| // Provide a delegate which creates delegates for platform implementations. |
| // The delegate is not owned by ScreenOrientationProvider. |
| static void SetDelegate(ScreenOrientationDelegate* delegate); |
| static ScreenOrientationDelegate* GetDelegateForTesting(); |
| |
| // WebContentsObserver |
| void DidToggleFullscreenModeForTab(bool entered_fullscreen, |
| bool will_cause_resize) override; |
| void DidFinishNavigation(NavigationHandle* navigation_handle) override; |
| |
| private: |
| // Calls on |on_result_callback_| with |result|, followed by resetting |
| // |on_result_callback_| and |pending_lock_orientation_|. |
| void NotifyLockResult(device::mojom::ScreenOrientationLockResult result); |
| |
| // Returns the lock type that should be associated with 'natural' lock. |
| // Returns WebScreenOrientationLockDefault if the natural lock type can't be |
| // found. |
| blink::WebScreenOrientationLockType GetNaturalLockType() const; |
| |
| // Whether the passed |lock| matches the current orientation. In other words, |
| // whether the orientation will need to change to match the |lock|. |
| bool LockMatchesCurrentOrientation(blink::WebScreenOrientationLockType lock); |
| |
| // Not owned, responsible for platform implementations. |
| static ScreenOrientationDelegate* delegate_; |
| |
| // Whether the ScreenOrientationProvider currently has a lock applied. |
| bool lock_applied_; |
| |
| // Lock that require orientation changes are not completed until |
| // OnOrientationChange. |
| base::Optional<blink::WebScreenOrientationLockType> pending_lock_orientation_; |
| |
| LockOrientationCallback pending_callback_; |
| |
| WebContentsFrameBindingSet<device::mojom::ScreenOrientation> bindings_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScreenOrientationProvider); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_ |