| /* |
| * Copyright (C) 2011 Google Inc. All Rights Reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_SCRIPTED_ANIMATION_CONTROLLER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_SCRIPTED_ANIMATION_CONTROLLER_H_ |
| |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/core/dom/frame_request_callback_collection.h" |
| #include "third_party/blink/renderer/platform/bindings/name_client.h" |
| #include "third_party/blink/renderer/platform/bindings/trace_wrapper_member.h" |
| #include "third_party/blink/renderer/platform/heap/handle.h" |
| #include "third_party/blink/renderer/platform/wtf/text/atomic_string.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_impl.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class Document; |
| class Event; |
| class EventTarget; |
| class MediaQueryListListener; |
| |
| class CORE_EXPORT ScriptedAnimationController |
| : public GarbageCollectedFinalized<ScriptedAnimationController>, |
| public NameClient { |
| public: |
| static ScriptedAnimationController* Create(Document* document) { |
| return new ScriptedAnimationController(document); |
| } |
| virtual ~ScriptedAnimationController() = default; |
| |
| void Trace(blink::Visitor*); |
| const char* NameInHeapSnapshot() const override { |
| return "ScriptedAnimationController"; |
| } |
| void ClearDocumentPointer() { document_ = nullptr; } |
| |
| // Animation frame callbacks are used for requestAnimationFrame(). |
| typedef int CallbackId; |
| CallbackId RegisterCallback(FrameRequestCallbackCollection::FrameCallback*); |
| void CancelCallback(CallbackId); |
| // Returns true if any callback is currently registered. |
| bool HasCallback() const; |
| |
| // Animation frame events are used for resize events, scroll events, etc. |
| void EnqueueEvent(Event*); |
| void EnqueuePerFrameEvent(Event*); |
| |
| // Animation frame tasks are used for Fullscreen. |
| void EnqueueTask(base::OnceClosure); |
| |
| // Used for the MediaQueryList change event. |
| void EnqueueMediaQueryChangeListeners( |
| HeapVector<Member<MediaQueryListListener>>&); |
| |
| // Invokes callbacks, dispatches events, etc. The order is defined by HTML: |
| // https://html.spec.whatwg.org/multipage/webappapis.html#event-loop-processing-model |
| void ServiceScriptedAnimations(base::TimeTicks monotonic_time_now); |
| |
| void Pause(); |
| void Unpause(); |
| |
| void DispatchEventsAndCallbacksForPrinting(); |
| |
| bool CurrentFrameHadRAF() const { return current_frame_had_raf_; } |
| bool NextFrameHasPendingRAF() const { return next_frame_has_pending_raf_; } |
| |
| private: |
| explicit ScriptedAnimationController(Document*); |
| |
| void ScheduleAnimationIfNeeded(); |
| |
| void RunTasks(); |
| void DispatchEvents( |
| const AtomicString& event_interface_filter = AtomicString()); |
| void ExecuteCallbacks(base::TimeTicks monotonic_time_now); |
| void CallMediaQueryListListeners(); |
| |
| bool HasScheduledItems() const; |
| |
| Member<Document> document_; |
| FrameRequestCallbackCollection callback_collection_; |
| int suspend_count_; |
| Vector<base::OnceClosure> task_queue_; |
| HeapVector<Member<Event>> event_queue_; |
| HeapListHashSet<std::pair<Member<const EventTarget>, const StringImpl*>> |
| per_frame_events_; |
| using MediaQueryListListeners = |
| HeapListHashSet<Member<MediaQueryListListener>>; |
| MediaQueryListListeners media_query_list_listeners_; |
| |
| // Used for animation metrics; see cc::CompositorTimingHistory::DidDraw. |
| bool current_frame_had_raf_; |
| bool next_frame_has_pending_raf_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_SCRIPTED_ANIMATION_CONTROLLER_H_ |