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// 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 "third_party/blink/renderer/core/page/page_animator.h"
#include "base/auto_reset.h"
#include "cc/animation/animation_host.h"
#include "third_party/blink/renderer/core/animation/document_animations.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/page/chrome_client.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/core/page/validation_message_client.h"
#include "third_party/blink/renderer/core/paint/paint_layer_scrollable_area.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"
namespace blink {
namespace {
typedef HeapVector<Member<Document>, 32> DocumentsVector;
enum OnlyThrottledOrNot { OnlyNonThrottled, AllDocuments };
// We walk through all the frames in DOM tree order and get all the documents
DocumentsVector GetAllDocuments(Frame* main_frame,
OnlyThrottledOrNot which_documents) {
DocumentsVector documents;
for (Frame* frame = main_frame; frame; frame = frame->Tree().TraverseNext()) {
if (auto* local_frame = DynamicTo<LocalFrame>(frame)) {
Document* document = local_frame->GetDocument();
if (which_documents == AllDocuments || !document->View() ||
!document->View()->CanThrottleRendering())
documents.push_back(document);
}
}
return documents;
}
} // namespace
PageAnimator::PageAnimator(Page& page)
: page_(page),
servicing_animations_(false),
updating_layout_and_style_for_painting_(false) {}
void PageAnimator::Trace(Visitor* visitor) const {
visitor->Trace(page_);
}
void PageAnimator::ServiceScriptedAnimations(
base::TimeTicks monotonic_animation_start_time) {
base::AutoReset<bool> servicing(&servicing_animations_, true);
// Once we are inside a frame's lifecycle, the AnimationClock should hold its
// time value until the end of the frame.
Clock().SetAllowedToDynamicallyUpdateTime(false);
Clock().UpdateTime(monotonic_animation_start_time);
DocumentsVector documents = GetAllDocuments(page_->MainFrame(), AllDocuments);
for (auto& document : documents) {
absl::optional<ScopedFrameBlamer> frame_blamer;
// TODO(szager): The following logic evolved piecemeal, and this conditional
// is suspect.
if (!document->View() || !document->View()->CanThrottleRendering()) {
frame_blamer.emplace(document->GetFrame());
TRACE_EVENT0("blink,rail", "PageAnimator::serviceScriptedAnimations");
}
if (!document->View()) {
document->GetDocumentAnimations()
.UpdateAnimationTimingForAnimationFrame();
continue;
}
document->View()->ServiceScriptedAnimations(monotonic_animation_start_time);
}
page_->GetValidationMessageClient().LayoutOverlay();
}
void PageAnimator::PostAnimate() {
// If we don't have an imminently incoming frame, we need to let the
// AnimationClock update its own time to properly service out-of-lifecycle
// events such as setInterval (see https://crbug.com/995806). This isn't a
// perfect heuristic, but at the very least we know that if there is a pending
// RAF we will be getting a new frame and thus don't need to unlock the clock.
if (!next_frame_has_pending_raf_)
Clock().SetAllowedToDynamicallyUpdateTime(true);
next_frame_has_pending_raf_ = false;
}
void PageAnimator::SetHasCanvasInvalidation() {
has_canvas_invalidation_ = true;
}
void PageAnimator::ReportFrameAnimations(cc::AnimationHost* animation_host) {
if (animation_host) {
animation_host->SetHasCanvasInvalidation(has_canvas_invalidation_);
animation_host->SetHasInlineStyleMutation(has_inline_style_mutation_);
animation_host->SetHasSmilAnimation(has_smil_animation_);
animation_host->SetCurrentFrameHadRaf(current_frame_had_raf_);
animation_host->SetNextFrameHasPendingRaf(next_frame_has_pending_raf_);
}
has_canvas_invalidation_ = false;
has_inline_style_mutation_ = false;
has_smil_animation_ = false;
current_frame_had_raf_ = false;
// next_frame_has_pending_raf_ is reset at PostAnimate().
}
void PageAnimator::SetSuppressFrameRequestsWorkaroundFor704763Only(
bool suppress_frame_requests) {
// If we are enabling the suppression and it was already enabled then we must
// have missed disabling it at the end of a previous frame.
DCHECK(!suppress_frame_requests_workaround_for704763_only_ ||
!suppress_frame_requests);
suppress_frame_requests_workaround_for704763_only_ = suppress_frame_requests;
}
void PageAnimator::SetHasInlineStyleMutation() {
has_inline_style_mutation_ = true;
}
void PageAnimator::SetHasSmilAnimation() {
has_smil_animation_ = true;
}
void PageAnimator::SetCurrentFrameHadRaf() {
current_frame_had_raf_ = true;
}
void PageAnimator::SetNextFrameHasPendingRaf() {
next_frame_has_pending_raf_ = true;
}
DISABLE_CFI_PERF
void PageAnimator::ScheduleVisualUpdate(LocalFrame* frame) {
if (servicing_animations_ || updating_layout_and_style_for_painting_ ||
suppress_frame_requests_workaround_for704763_only_) {
return;
}
page_->GetChromeClient().ScheduleAnimation(frame->View());
}
void PageAnimator::UpdateAllLifecyclePhases(LocalFrame& root_frame,
DocumentUpdateReason reason) {
LocalFrameView* view = root_frame.View();
base::AutoReset<bool> servicing(&updating_layout_and_style_for_painting_,
true);
view->UpdateAllLifecyclePhases(reason);
}
void PageAnimator::UpdateLifecycleToPrePaintClean(LocalFrame& root_frame,
DocumentUpdateReason reason) {
LocalFrameView* view = root_frame.View();
base::AutoReset<bool> servicing(&updating_layout_and_style_for_painting_,
true);
view->UpdateLifecycleToPrePaintClean(reason);
}
void PageAnimator::UpdateLifecycleToLayoutClean(LocalFrame& root_frame,
DocumentUpdateReason reason) {
LocalFrameView* view = root_frame.View();
base::AutoReset<bool> servicing(&updating_layout_and_style_for_painting_,
true);
view->UpdateLifecycleToLayoutClean(reason);
}
HeapVector<Member<Animation>> PageAnimator::GetAnimations(
const TreeScope& tree_scope) {
HeapVector<Member<Animation>> animations;
DocumentsVector documents = GetAllDocuments(page_->MainFrame(), AllDocuments);
for (auto& document : documents) {
document->GetDocumentAnimations().GetAnimationsTargetingTreeScope(
animations, tree_scope);
}
return animations;
}
} // namespace blink
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