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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/system/progress_indicator/progress_indicator_animation_registry.h"
#include <set>
namespace ash {
namespace {
// Type aliases ----------------------------------------------------------------
template <typename AnimationType>
using KeyedAnimationMap =
std::map<ProgressIndicatorAnimationRegistry::AnimationKey,
std::unique_ptr<AnimationType>>;
template <typename CallbackListType>
using KeyedAnimationChangedCallbackListMap =
std::map<ProgressIndicatorAnimationRegistry::AnimationKey,
CallbackListType>;
// Helpers ---------------------------------------------------------------------
// Notifies any animation changed callbacks registered for the specified `key`
// that the associated animation has changed.
template <typename AnimationType, typename CallbackListType>
void NotifyAnimationChangedForKey(
KeyedAnimationMap<AnimationType>* animations_by_key,
KeyedAnimationChangedCallbackListMap<CallbackListType>*
animation_changed_callback_lists_by_key,
ProgressIndicatorAnimationRegistry::AnimationKey key) {
auto callback_lists_it = animation_changed_callback_lists_by_key->find(key);
if (callback_lists_it == animation_changed_callback_lists_by_key->end())
return;
auto animations_it = animations_by_key->find(key);
callback_lists_it->second.Notify(animations_it != animations_by_key->end()
? animations_it->second.get()
: nullptr);
}
// Implements:
// * `AddProgressIconAnimationChangedCallbackForKey()`
// * `AddProgressRingAnimationChangedCallbackForKey()`
template <typename CallbackListType>
base::CallbackListSubscription AddAnimationChangedCallbackForKey(
KeyedAnimationChangedCallbackListMap<CallbackListType>*
animation_changed_callback_lists_by_key,
ProgressIndicatorAnimationRegistry::AnimationKey key,
typename CallbackListType::CallbackType callback) {
auto it = animation_changed_callback_lists_by_key->find(key);
// If this is the first time that an animation changed callback is being
// registered for the specified `key`, set a callback to destroy the created
// callback list when it becomes empty.
if (it == animation_changed_callback_lists_by_key->end()) {
it = animation_changed_callback_lists_by_key
->emplace(std::piecewise_construct, std::forward_as_tuple(key),
std::forward_as_tuple())
.first;
it->second.set_removal_callback(base::BindRepeating(
[](KeyedAnimationChangedCallbackListMap<CallbackListType>*
animation_changed_callback_lists_by_key,
ProgressIndicatorAnimationRegistry::AnimationKey key) {
auto it = animation_changed_callback_lists_by_key->find(key);
if (it != animation_changed_callback_lists_by_key->end() &&
it->second.empty()) {
animation_changed_callback_lists_by_key->erase(it);
}
},
// `base::Unretained()` is safe because this object owns the callback.
base::Unretained(animation_changed_callback_lists_by_key), key));
}
return it->second.Add(std::move(callback));
}
// Implements:
// * `GetProgressIconAnimationForKey()`
// * `GetProgressRingAnimationForKey()`
template <typename AnimationType>
AnimationType* GetAnimationForKey(
KeyedAnimationMap<AnimationType>* animations_by_key,
ProgressIndicatorAnimationRegistry::AnimationKey key) {
auto it = animations_by_key->find(key);
return it != animations_by_key->end() ? it->second.get() : nullptr;
}
// Implements:
// * `SetProgressIconAnimationForKey()`
// * `SetProgressRingAnimationForKey()`
template <typename AnimationType, typename CallbackListType>
AnimationType* SetAnimationForKey(
KeyedAnimationMap<AnimationType>* animations_by_key,
KeyedAnimationChangedCallbackListMap<CallbackListType>*
animation_changed_callback_lists_by_key,
ProgressIndicatorAnimationRegistry::AnimationKey key,
std::unique_ptr<AnimationType> animation) {
AnimationType* animation_ptr = animation.get();
if (animation) {
(*animations_by_key)[key] = std::move(animation);
NotifyAnimationChangedForKey(animations_by_key,
animation_changed_callback_lists_by_key, key);
} else {
auto it = animations_by_key->find(key);
if (it != animations_by_key->end()) {
animations_by_key->erase(it);
NotifyAnimationChangedForKey(
animations_by_key, animation_changed_callback_lists_by_key, key);
}
}
return animation_ptr;
}
} // namespace
// ProgressIndicatorAnimationRegistry ------------------------------------------
ProgressIndicatorAnimationRegistry::ProgressIndicatorAnimationRegistry() =
default;
ProgressIndicatorAnimationRegistry::~ProgressIndicatorAnimationRegistry() =
default;
// static
ProgressIndicatorAnimationRegistry::AnimationKey
ProgressIndicatorAnimationRegistry::AsAnimationKey(const void* ptr) {
return reinterpret_cast<intptr_t>(ptr);
}
base::CallbackListSubscription ProgressIndicatorAnimationRegistry::
AddProgressIconAnimationChangedCallbackForKey(
AnimationKey key,
ProgressIconAnimationChangedCallbackList::CallbackType callback) {
return AddAnimationChangedCallbackForKey(
&icon_animation_changed_callback_lists_by_key_, key, std::move(callback));
}
base::CallbackListSubscription ProgressIndicatorAnimationRegistry::
AddProgressRingAnimationChangedCallbackForKey(
AnimationKey key,
ProgressRingAnimationChangedCallbackList::CallbackType callback) {
return AddAnimationChangedCallbackForKey(
&ring_animation_changed_callback_lists_by_key_, key, std::move(callback));
}
ProgressIconAnimation*
ProgressIndicatorAnimationRegistry::GetProgressIconAnimationForKey(
AnimationKey key) {
return GetAnimationForKey(&icon_animations_by_key_, key);
}
ProgressRingAnimation*
ProgressIndicatorAnimationRegistry::GetProgressRingAnimationForKey(
AnimationKey key) {
return GetAnimationForKey(&ring_animations_by_key_, key);
}
ProgressIconAnimation*
ProgressIndicatorAnimationRegistry::SetProgressIconAnimationForKey(
AnimationKey key,
std::unique_ptr<ProgressIconAnimation> animation) {
return SetAnimationForKey(&icon_animations_by_key_,
&icon_animation_changed_callback_lists_by_key_, key,
std::move(animation));
}
ProgressRingAnimation*
ProgressIndicatorAnimationRegistry::SetProgressRingAnimationForKey(
AnimationKey key,
std::unique_ptr<ProgressRingAnimation> animation) {
return SetAnimationForKey(&ring_animations_by_key_,
&ring_animation_changed_callback_lists_by_key_, key,
std::move(animation));
}
void ProgressIndicatorAnimationRegistry::EraseAllAnimations() {
EraseAllAnimationsForKeyIf([](AnimationKey key) { return true; });
}
void ProgressIndicatorAnimationRegistry::EraseAllAnimationsForKey(
AnimationKey key) {
SetProgressIconAnimationForKey(key, nullptr);
SetProgressRingAnimationForKey(key, nullptr);
}
void ProgressIndicatorAnimationRegistry::EraseAllAnimationsForKeyIf(
base::FunctionRef<bool(AnimationKey key)> predicate) {
std::set<AnimationKey> keys_to_erase;
for (const auto& [key, _] : icon_animations_by_key_) {
if (predicate(key)) {
keys_to_erase.insert(key);
}
}
for (const auto& [key, _] : ring_animations_by_key_) {
if (predicate(key)) {
keys_to_erase.insert(key);
}
}
for (AnimationKey key : keys_to_erase) {
EraseAllAnimationsForKey(key);
}
}
} // namespace ash
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