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content / browser / navigation_transitions / back_forward_transition_animation_manager_android.cc [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/navigation_transitions/back_forward_transition_animation_manager_android.h"
#include "content/browser/navigation_transitions/back_forward_transition_animator.h"
#include "content/browser/renderer_host/navigation_controller_impl.h"
#include "content/browser/renderer_host/navigation_transitions/navigation_entry_screenshot.h"
#include "content/browser/renderer_host/navigation_transitions/navigation_transition_config.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/browser/web_contents/web_contents_view_android.h"
#include "content/public/browser/back_forward_transition_animation_manager.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/web_contents_delegate.h"
namespace content {
namespace {
// TODO(crbug/353766658): Move these shorthands to a proper header file.
using NavigationDirection =
BackForwardTransitionAnimationManager::NavigationDirection;
using AnimationStage = BackForwardTransitionAnimationManager::AnimationStage;
using SwipeEdge = ui::BackGestureEventSwipeEdge;
using AnimationAbortReason =
BackForwardTransitionAnimator::AnimationAbortReason;
} // namespace
BackForwardTransitionAnimationManagerAndroid::
BackForwardTransitionAnimationManagerAndroid(
WebContentsViewAndroid* web_contents_view_android,
NavigationControllerImpl* navigation_controller)
: web_contents_view_android_(web_contents_view_android),
navigation_controller_(navigation_controller),
animator_factory_(
std::make_unique<BackForwardTransitionAnimator::Factory>()) {}
BackForwardTransitionAnimationManagerAndroid::
~BackForwardTransitionAnimationManagerAndroid() {
if (animator_) {
animator_->AbortAnimation(AnimationAbortReason::kAnimationManagerDestroyed);
DestroyAnimator();
}
}
void BackForwardTransitionAnimationManagerAndroid::OnGestureStarted(
const ui::BackGestureEvent& gesture,
SwipeEdge edge,
NavigationDirection navigation_direction) {
std::optional<int> index =
navigation_direction == NavigationDirection::kForward
? navigation_controller_->GetIndexForGoForward()
: navigation_controller_->GetIndexForGoBack();
CHECK(index.has_value());
auto* destination_entry = navigation_controller_->GetEntryAtIndex(*index);
CHECK(destination_entry)
<< "The embedder should only delegate the history navigation task "
"to this manager if there is a destination entry.";
// Each previous gesture should finished with `OnGestureCancelled()` or
// `OnGestureInvoked()`. In both cases we reset `destination_entry_index_` to
// -1.
CHECK_EQ(destination_entry_index_, -1);
destination_entry_index_ = *index;
if (animator_) {
// It's possible for a user to start a second gesture when the first gesture
// animation is still on-going (aka "chained back"). For now, abort the
// previous animation (impl's dtor will reset the layer's position and
// reclaim all the resources).
//
// TODO(crbug.com/40261105): We need a proper UX to support this.
animator_->AbortAnimation(AnimationAbortReason::kChainedBack);
DestroyAnimator();
}
// Handle the case where the screenshot's dimension does not match the
// physical viewport:
// - TODO(https://crbug.com/346979589): Screenshot is captured in a landscape
// / portrait mode but used for transition in the different mode.
if (!ShouldAnimateNavigationTransition(navigation_direction, edge)) {
TRACE_EVENT(
"browser,navigation",
"BackForwardTransitionAnimationManagerAndroid::OnGestureStarted");
return;
}
CHECK(animator_factory_);
animator_ = animator_factory_->Create(
web_contents_view_android_.get(), navigation_controller_.get(), gesture,
navigation_direction, edge, destination_entry,
MaybeCopyContentAreaAsBitmapSync(), this);
// Become a WCO as soon as this class is created, because we want to
// observe all navigations while this class is controlling the UI. This
// allows us to ensure the visuals displayed align with the active page
// and URL in the URL bar.
WebContentsObserver::Observe(
this->web_contents_view_android()->web_contents());
auto* window = web_contents_view_android()->GetTopLevelNativeWindow();
CHECK(window);
window->AddObserver(this);
web_contents_view_android()->GetNativeView()->AddObserver(this);
OnAnimationStageChanged();
}
void BackForwardTransitionAnimationManagerAndroid::OnGestureProgressed(
const ui::BackGestureEvent& gesture) {
if (animator_) {
animator_->OnGestureProgressed(gesture);
}
}
void BackForwardTransitionAnimationManagerAndroid::OnGestureCancelled() {
CHECK_NE(destination_entry_index_, -1);
if (animator_) {
animator_->OnGestureCancelled();
MaybeDestroyAnimator();
}
destination_entry_index_ = -1;
}
void BackForwardTransitionAnimationManagerAndroid::OnGestureInvoked() {
CHECK_NE(destination_entry_index_, -1);
if (animator_) {
animator_->OnGestureInvoked();
MaybeDestroyAnimator();
} else {
navigation_controller_->GoToIndex(destination_entry_index_);
}
destination_entry_index_ = -1;
}
void BackForwardTransitionAnimationManagerAndroid::
OnContentForNavigationEntryShown() {
if (animator_) {
animator_->OnContentForNavigationEntryShown();
MaybeDestroyAnimator();
}
}
AnimationStage
BackForwardTransitionAnimationManagerAndroid::GetCurrentAnimationStage() {
return animator_ ? animator_->GetCurrentAnimationStage()
: AnimationStage::kNone;
}
void BackForwardTransitionAnimationManagerAndroid::SetFavicon(
const SkBitmap& favicon) {
CHECK(NavigationTransitionConfig::AreBackForwardTransitionsEnabled());
auto* entry = web_contents_view_android_->web_contents()
->GetController()
.GetLastCommittedEntry();
CHECK(entry);
entry->navigation_transition_data().set_favicon(favicon);
}
void BackForwardTransitionAnimationManagerAndroid::OnDetachedFromWindow() {
// The WebContentsViewAndroid's native view is detached from the top level
// window. We must abort the transition.
CHECK(animator_);
animator_->AbortAnimation(AnimationAbortReason::kDetachedFromWindow);
DestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::
OnRootWindowVisibilityChanged(bool visible) {
CHECK(animator_);
if (!visible) {
animator_->AbortAnimation(
AnimationAbortReason::kRootWindowVisibilityChanged);
DestroyAnimator();
}
}
void BackForwardTransitionAnimationManagerAndroid::OnDetachCompositor() {
CHECK(animator_);
animator_->AbortAnimation(AnimationAbortReason::kCompositorDetached);
DestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::OnAnimate(
base::TimeTicks frame_begin_time) {
animator_->OnAnimate(frame_begin_time);
MaybeDestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::RenderWidgetHostDestroyed(
RenderWidgetHost* widget_host) {
animator_->OnRenderWidgetHostDestroyed(widget_host);
MaybeDestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::
OnRenderFrameMetadataChangedAfterActivation(
base::TimeTicks activation_time) {
animator_->OnRenderFrameMetadataChangedAfterActivation(activation_time);
MaybeDestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::DidStartNavigation(
NavigationHandle* navigation_handle) {
animator_->DidStartNavigation(navigation_handle);
MaybeDestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::ReadyToCommitNavigation(
NavigationHandle* navigation_handle) {
animator_->ReadyToCommitNavigation(navigation_handle);
MaybeDestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::DidFinishNavigation(
NavigationHandle* navigation_handle) {
animator_->DidFinishNavigation(navigation_handle);
MaybeDestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::
OnDidNavigatePrimaryMainFramePreCommit(
NavigationRequest* navigation_request,
RenderFrameHostImpl* old_host,
RenderFrameHostImpl* new_host) {
if (animator_) {
animator_->OnDidNavigatePrimaryMainFramePreCommit(navigation_request,
old_host, new_host);
MaybeDestroyAnimator();
}
}
void BackForwardTransitionAnimationManagerAndroid::
OnNavigationCancelledBeforeStart(NavigationHandle* navigation_handle) {
if (animator_) {
animator_->OnNavigationCancelledBeforeStart(navigation_handle);
MaybeDestroyAnimator();
}
}
void BackForwardTransitionAnimationManagerAndroid::OnAnimationStageChanged() {
if (auto* delegate =
web_contents_view_android()->web_contents()->GetDelegate()) {
delegate->DidBackForwardTransitionAnimationChange();
}
}
void BackForwardTransitionAnimationManagerAndroid::
OnPostNavigationFirstFrameTimeout() {
CHECK(animator_);
CHECK(animator_->IsTerminalState());
DestroyAnimator();
}
void BackForwardTransitionAnimationManagerAndroid::
OnPhysicalBackingSizeChanged() {
if (!animator_) {
return;
}
animator_->AbortAnimation(AnimationAbortReason::kPhysicalSizeChanged);
DestroyAnimator();
}
SkBitmap BackForwardTransitionAnimationManagerAndroid::
MaybeCopyContentAreaAsBitmapSync() {
return web_contents_view_android()
->web_contents()
->GetDelegate()
->MaybeCopyContentAreaAsBitmapSync();
}
void BackForwardTransitionAnimationManagerAndroid::MaybeRecordIgnoredInput(
const blink::WebInputEvent& event) {
if (animator_) {
animator_->MaybeRecordIgnoredInput(event);
}
}
void BackForwardTransitionAnimationManagerAndroid::MaybeDestroyAnimator() {
CHECK(animator_);
if (animator_->IsTerminalState()) {
DestroyAnimator();
}
}
void BackForwardTransitionAnimationManagerAndroid::DestroyAnimator() {
CHECK(animator_);
WebContentsObserver::Observe(nullptr);
auto* window = web_contents_view_android()->GetTopLevelNativeWindow();
CHECK(window);
window->RemoveObserver(this);
web_contents_view_android()->GetNativeView()->RemoveObserver(this);
animator_.reset();
OnAnimationStageChanged();
}
} // namespace content