| // Copyright 2017 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 THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_CONTROLS_MEDIA_CONTROLS_ROTATE_TO_FULLSCREEN_DELEGATE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_CONTROLS_MEDIA_CONTROLS_ROTATE_TO_FULLSCREEN_DELEGATE_H_ |
| |
| #include "base/optional.h" |
| #include "third_party/blink/renderer/core/dom/events/native_event_listener.h" |
| #include "third_party/blink/renderer/modules/modules_export.h" |
| |
| namespace blink { |
| |
| class DeviceOrientationEvent; |
| class HTMLVideoElement; |
| class IntersectionObserver; |
| class IntersectionObserverEntry; |
| |
| // MediaControlsRotateToFullscreenDelegate automatically enters and exits |
| // fullscreen when the device is rotated whilst watching a <video>. It is meant |
| // to be created by `MediaControlsImpl` when the feature applies. Once created, |
| // it will listen for events. |
| class MediaControlsRotateToFullscreenDelegate final |
| : public NativeEventListener { |
| public: |
| explicit MediaControlsRotateToFullscreenDelegate(HTMLVideoElement&); |
| |
| // Called by MediaControlsImpl when the HTMLMediaElement is added to a |
| // document. All event listeners should be added. |
| void Attach(); |
| |
| // Called by MediaControlsImpl when the HTMLMediaElement is no longer in the |
| // document. All event listeners should be removed in order to prepare the |
| // object to be garbage collected. |
| void Detach(); |
| |
| // EventListener implementation. |
| void Invoke(ExecutionContext*, Event*) override; |
| |
| void Trace(blink::Visitor*) override; |
| |
| private: |
| friend class MediaControlsRotateToFullscreenDelegateTest; |
| |
| // Represents either screen orientation or video aspect ratio. |
| enum class SimpleOrientation { kPortrait, kLandscape, kUnknown }; |
| |
| void OnStateChange(); |
| void OnIntersectionChange( |
| const HeapVector<Member<IntersectionObserverEntry>>& entries); |
| void OnDeviceOrientationAvailable(DeviceOrientationEvent*); |
| void OnScreenOrientationChange(); |
| |
| MODULES_EXPORT SimpleOrientation ComputeVideoOrientation() const; |
| SimpleOrientation ComputeScreenOrientation() const; |
| |
| base::Optional<bool> device_orientation_supported_; |
| |
| SimpleOrientation current_screen_orientation_ = SimpleOrientation::kUnknown; |
| |
| // Only valid when intersection_observer_ is active and the first |
| // OnIntersectionChanged has been received; otherwise assume video is hidden. |
| bool is_visible_ = false; |
| |
| // This is null whenever we're not listening. |
| Member<IntersectionObserver> intersection_observer_ = nullptr; |
| |
| // `video_element_` owns MediaControlsImpl that owns |this|. |
| Member<HTMLVideoElement> video_element_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_CONTROLS_MEDIA_CONTROLS_ROTATE_TO_FULLSCREEN_DELEGATE_H_ |