279 lines
7.9 KiB
C++
279 lines
7.9 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "history/view/history_view_emoji_interactions.h"
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#include "history/view/history_view_element.h"
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#include "history/view/media/history_view_sticker.h"
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#include "history/history.h"
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#include "chat_helpers/emoji_interactions.h"
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#include "chat_helpers/stickers_lottie.h"
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#include "main/main_session.h"
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#include "data/data_session.h"
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#include "data/data_document.h"
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#include "data/data_document_media.h"
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#include "lottie/lottie_common.h"
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#include "lottie/lottie_single_player.h"
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#include "base/random.h"
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#include "styles/style_chat.h"
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namespace HistoryView {
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namespace {
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constexpr auto kSizeMultiplier = 3;
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constexpr auto kCachesCount = 4;
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constexpr auto kMaxPlays = 5;
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constexpr auto kMaxPlaysWithSmallDelay = 3;
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constexpr auto kSmallDelay = crl::time(200);
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constexpr auto kDropDelayedAfterDelay = crl::time(2000);
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[[nodiscard]] QPoint GenerateRandomShift(QSize emoji) {
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// Random shift in [-0.08 ... 0.08] of animated emoji size.
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const auto maxShift = emoji * 2 / 25;
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return {
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base::RandomIndex(maxShift.width() * 2 + 1) - maxShift.width(),
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base::RandomIndex(maxShift.height() * 2 + 1) - maxShift.height(),
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};
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}
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} // namespace
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EmojiInteractions::EmojiInteractions(not_null<Main::Session*> session)
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: _session(session) {
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_session->data().viewRemoved(
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) | rpl::filter([=] {
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return !_plays.empty() || !_delayed.empty();
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}) | rpl::start_with_next([=](not_null<const Element*> view) {
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_plays.erase(ranges::remove(_plays, view, &Play::view), end(_plays));
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_delayed.erase(
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ranges::remove(_delayed, view, &Delayed::view),
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end(_delayed));
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}, _lifetime);
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_emojiSize = Sticker::EmojiSize();
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}
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EmojiInteractions::~EmojiInteractions() = default;
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void EmojiInteractions::play(
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ChatHelpers::EmojiInteractionPlayRequest request,
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not_null<Element*> view) {
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if (!view->media()) {
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// Large emoji may be disabled.
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return;
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} else if (_plays.empty()) {
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play(
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std::move(request.emoticon),
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view,
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std::move(request.media),
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request.incoming);
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} else {
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const auto now = crl::now();
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_delayed.push_back({
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request.emoticon,
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view,
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std::move(request.media),
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now,
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request.incoming,
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});
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checkDelayed();
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}
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}
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void EmojiInteractions::play(
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QString emoticon,
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not_null<Element*> view,
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std::shared_ptr<Data::DocumentMedia> media,
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bool incoming) {
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const auto top = view->block()->y() + view->y();
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const auto bottom = top + view->height();
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if (_visibleTop >= bottom
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|| _visibleBottom <= top
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|| _visibleTop == _visibleBottom) {
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return;
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}
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auto lottie = preparePlayer(media.get());
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const auto shift = GenerateRandomShift(_emojiSize);
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lottie->updates(
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) | rpl::start_with_next([=](Lottie::Update update) {
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v::match(update.data, [&](const Lottie::Information &information) {
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}, [&](const Lottie::DisplayFrameRequest &request) {
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const auto rect = computeRect(view).translated(shift);
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if (rect.y() + rect.height() >= _visibleTop
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&& rect.y() <= _visibleBottom) {
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_updateRequests.fire_copy(rect);
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}
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});
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}, lottie->lifetime());
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_plays.push_back({
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.view = view,
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.lottie = std::move(lottie),
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.shift = shift,
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});
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if (incoming) {
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_playStarted.fire(std::move(emoticon));
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}
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if (const auto media = view->media()) {
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media->stickerClearLoopPlayed();
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}
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}
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std::unique_ptr<Lottie::SinglePlayer> EmojiInteractions::preparePlayer(
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not_null<Data::DocumentMedia*> media) {
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// Shortened copy from stickers_lottie module.
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const auto document = media->owner();
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const auto baseKey = document->bigFileBaseCacheKey();
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const auto tag = uint8(0);
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const auto keyShift = ((tag << 4) & 0xF0)
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| (uint8(ChatHelpers::StickerLottieSize::EmojiInteraction) & 0x0F);
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const auto key = Storage::Cache::Key{
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baseKey.high,
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baseKey.low + keyShift
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};
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const auto get = [=](int i, FnMut<void(QByteArray &&cached)> handler) {
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document->owner().cacheBigFile().get(
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{ key.high, key.low + i },
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std::move(handler));
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};
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const auto weak = base::make_weak(&document->session());
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const auto put = [=](int i, QByteArray &&cached) {
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crl::on_main(weak, [=, data = std::move(cached)]() mutable {
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weak->data().cacheBigFile().put(
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{ key.high, key.low + i },
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std::move(data));
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});
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};
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const auto data = media->bytes();
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const auto filepath = document->filepath();
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const auto request = Lottie::FrameRequest{
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_emojiSize * kSizeMultiplier * style::DevicePixelRatio(),
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};
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auto &weakProvider = _sharedProviders[document];
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auto shared = [&] {
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if (const auto result = weakProvider.lock()) {
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return result;
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}
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const auto result = Lottie::SinglePlayer::SharedProvider(
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kCachesCount,
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get,
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put,
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Lottie::ReadContent(data, filepath),
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request,
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Lottie::Quality::High);
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weakProvider = result;
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return result;
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}();
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return std::make_unique<Lottie::SinglePlayer>(std::move(shared), request);
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}
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void EmojiInteractions::visibleAreaUpdated(
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int visibleTop,
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int visibleBottom) {
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_visibleTop = visibleTop;
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_visibleBottom = visibleBottom;
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}
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QRect EmojiInteractions::computeRect(not_null<Element*> view) const {
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const auto fullWidth = view->width();
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const auto shift = (_emojiSize.width() * kSizeMultiplier) / 40;
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const auto skip = (view->hasFromPhoto() ? st::msgPhotoSkip : 0)
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+ st::msgMargin.left();
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const auto rightAligned = view->hasOutLayout()
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&& !view->delegate()->elementIsChatWide();
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const auto left = rightAligned
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? (fullWidth - skip + shift - _emojiSize.width() * kSizeMultiplier)
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: (skip - shift);
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const auto viewTop = view->block()->y() + view->y() + view->marginTop();
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const auto top = viewTop - _emojiSize.height();
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return QRect(QPoint(left, top), _emojiSize * kSizeMultiplier);
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}
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void EmojiInteractions::paint(QPainter &p) {
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const auto factor = style::DevicePixelRatio();
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for (auto &play : _plays) {
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if (!play.lottie->ready()) {
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continue;
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}
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auto request = Lottie::FrameRequest();
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request.box = _emojiSize * kSizeMultiplier * factor;
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const auto rightAligned = play.view->hasOutLayout()
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&& !play.view->delegate()->elementIsChatWide();
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if (!rightAligned) {
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request.mirrorHorizontal = true;
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}
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const auto frame = play.lottie->frameInfo(request);
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play.frame = frame.index;
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if (!play.framesCount) {
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const auto &information = play.lottie->information();
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play.framesCount = information.framesCount;
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play.frameRate = information.frameRate;
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}
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if (play.frame + 1 == play.framesCount) {
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play.finished = true;
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}
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const auto rect = computeRect(play.view);
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p.drawImage(
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QRect(rect.topLeft() + play.shift, frame.image.size() / factor),
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frame.image);
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play.lottie->markFrameShown();
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}
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_plays.erase(ranges::remove(_plays, true, &Play::finished), end(_plays));
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checkDelayed();
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}
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void EmojiInteractions::checkDelayed() {
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if (_delayed.empty() || _plays.size() >= kMaxPlays) {
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return;
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}
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auto withTooLittleDelay = false;
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auto withHalfPlayed = false;
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for (const auto &play : _plays) {
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if (!play.framesCount
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|| !play.frameRate
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|| !play.frame
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|| (play.frame * crl::time(1000)
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< kSmallDelay * play.frameRate)) {
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withTooLittleDelay = true;
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break;
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} else if (play.frame * 2 > play.framesCount) {
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withHalfPlayed = true;
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}
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}
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if (withTooLittleDelay) {
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return;
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} else if (_plays.size() >= kMaxPlaysWithSmallDelay && !withHalfPlayed) {
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return;
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}
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const auto now = crl::now();
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const auto i = ranges::find_if(_delayed, [&](const Delayed &delayed) {
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return (delayed.shouldHaveStartedAt + kDropDelayedAfterDelay > now);
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});
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if (i == end(_delayed)) {
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_delayed.clear();
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return;
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}
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auto good = std::move(*i);
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_delayed.erase(begin(_delayed), i + 1);
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play(
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std::move(good.emoticon),
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good.view,
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std::move(good.media),
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good.incoming);
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}
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rpl::producer<QRect> EmojiInteractions::updateRequests() const {
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return _updateRequests.events();
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}
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rpl::producer<QString> EmojiInteractions::playStarted() const {
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return _playStarted.events();
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}
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} // namespace HistoryView
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