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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_animation_controller.h"
#include "base/functional/bind.h"
#import "chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_controller.h"
#include "content/public/browser/web_contents.h"
namespace {
// If the fullscreen toolbar is hidden, it is difficult for the user to see
// changes in the tabstrip. As a result, if a tab is inserted or the current
// tab switched to a new one, the toolbar must animate in and out to display
// the tabstrip changes to the user. The animation drops down the toolbar and
// then wait for 0.75 seconds before it hides the toolbar.
const NSTimeInterval kTabStripChangesDelay = 750;
} // end namespace
//////////////////////////////////////////////////////////////////
// FullscreenToolbarAnimationController, public:
FullscreenToolbarAnimationController::FullscreenToolbarAnimationController(
FullscreenToolbarController* owner)
: WebContentsObserver(nullptr),
owner_(owner),
animation_(this),
hide_toolbar_timer_(
FROM_HERE,
base::Milliseconds(kTabStripChangesDelay),
base::BindRepeating(&FullscreenToolbarAnimationController::
AnimateToolbarOutIfPossible,
base::Unretained(this))),
animation_start_value_(0),
should_hide_toolbar_after_delay_(false) {
animation_.SetSlideDuration(base::Milliseconds(200));
animation_.SetTweenType(gfx::Tween::EASE_OUT);
}
FullscreenToolbarAnimationController::~FullscreenToolbarAnimationController() =
default;
void FullscreenToolbarAnimationController::ToolbarDidUpdate() {
animation_start_value_ = [owner_ toolbarFraction];
}
void FullscreenToolbarAnimationController::StopAnimationAndTimer() {
animation_.Stop();
hide_toolbar_timer_.Stop();
}
void FullscreenToolbarAnimationController::AnimateToolbarForTabstripChanges(
content::WebContents* contents,
bool in_foreground) {
// Don't kickstart the animation if the toolbar is already displayed.
if ([owner_ mustShowFullscreenToolbar]) {
return;
}
if (animation_.IsShowing()) {
hide_toolbar_timer_.Reset();
Observe(nullptr);
return;
}
should_hide_toolbar_after_delay_ = true;
if (in_foreground && contents &&
!contents->CompletedFirstVisuallyNonEmptyPaint()) {
Observe(contents);
}
AnimateToolbarIn();
}
void FullscreenToolbarAnimationController::AnimateToolbarIn() {
if (![owner_ isInFullscreen]) {
return;
}
animation_.Reset(animation_start_value_);
animation_.Show();
}
void FullscreenToolbarAnimationController::AnimateToolbarOutIfPossible() {
if (![owner_ isInFullscreen] || [owner_ mustShowFullscreenToolbar]) {
return;
}
if (animation_.IsClosing()) {
return;
}
animation_.Stop();
animation_.Hide();
}
CGFloat FullscreenToolbarAnimationController::GetToolbarFractionFromProgress()
const {
return animation_.GetCurrentValue();
}
bool FullscreenToolbarAnimationController::IsAnimationRunning() const {
return animation_.is_animating();
}
//////////////////////////////////////////////////////////////////
// FullscreenToolbarAnimationController::WebContentsObserver:
void FullscreenToolbarAnimationController::DidFirstVisuallyNonEmptyPaint() {
StartHideTimerIfPossible();
Observe(nullptr);
}
//////////////////////////////////////////////////////////////////
// FullscreenToolbarAnimationController::AnimationDelegate:
void FullscreenToolbarAnimationController::AnimationProgressed(
const gfx::Animation* animation) {
[owner_ layoutToolbar];
}
void FullscreenToolbarAnimationController::AnimationEnded(
const gfx::Animation* animation) {
if (!web_contents() && animation_.IsShowing()) {
StartHideTimerIfPossible();
}
}
//////////////////////////////////////////////////////////////////
// FullscreenToolbarAnimationController, private:
void FullscreenToolbarAnimationController::StartHideTimerIfPossible() {
DCHECK(animation_.IsShowing());
if (should_hide_toolbar_after_delay_) {
hide_toolbar_timer_.Reset();
should_hide_toolbar_after_delay_ = false;
}
}
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