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Fix crash and improve animated scrolling. 

Also fix reply returns traversing after animated scrolling.
This commit is contained in:
John Preston 2017-05-24 22:21:58 +03:00
parent e0978f86d1
commit 9665d5cb45
2 changed files with 214 additions and 156 deletions
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353
Telegram/SourceFiles/historywidget.cpp
View File

@ -676,54 +676,56 @@ void HistoryWidget::scrollToCurrentVoiceMessage(FullMsgId fromId, FullMsgId toId
void HistoryWidget::animatedScrollToItem(MsgId msgId) {
Expects(_history != nullptr);
auto animatedScrollAttachedToItem = [this](HistoryItem *item, int scrollTo) {
auto itemTop = _list->itemTop(item);
if (itemTop < 0) {
return false;
}
auto to = App::histItemById(_channel, msgId);
if (_list->itemTop(to) < 0) {
return;
}
auto maxAnimatedDelta = _scroll->height();
auto transition = anim::sineInOut;
auto scrollTop = _scroll->scrollTop();
if (scrollTo > scrollTop + maxAnimatedDelta) {
scrollTop = scrollTo - maxAnimatedDelta;
synteticScrollToY(scrollTop);
transition = anim::easeOutCubic;
} else if (scrollTo + maxAnimatedDelta < scrollTop) {
scrollTop = scrollTo + maxAnimatedDelta;
synteticScrollToY(scrollTop);
transition = anim::easeOutCubic;
}
_scrollToMediaMessageAnimation.finish();
_scrollToMediaMessageAnimation.start([this, itemId = item->fullId()] {
auto itemTop = _list->itemTop(App::histItemById(itemId));
if (itemTop < 0) {
_scrollToMediaMessageAnimation.finish();
} else {
synteticScrollToY(qRound(_scrollToMediaMessageAnimation.current()) + itemTop);
}
}, scrollTop - itemTop, scrollTo - itemTop, st::slideDuration, anim::sineInOut);
return true;
};
auto scrollTo = snap(itemTopForHighlight(to), 0, _scroll->scrollTopMax());
animatedScrollToY(scrollTo, to);
}
if (msgId == ShowAtUnreadMsgId) {
// Special case "scroll to bottom".
auto scrollTo = _scroll->scrollTopMax();
void HistoryWidget::animatedScrollToY(int scrollTo, HistoryItem *attachTo) {
Expects(_history != nullptr);
// Attach our scroll animation to some item.
auto item = _history->isEmpty() ? nullptr : _history->blocks.back()->items.back();
if (animatedScrollAttachedToItem(item, scrollTo)) {
return;
}
// If something went wrong we just scroll without animation.
// Attach our scroll animation to some item.
auto itemTop = _list->itemTop(attachTo);
if (itemTop < 0 && !_history->isEmpty()) {
attachTo = _history->blocks.back()->items.back();
itemTop = _list->itemTop(attachTo);
}
if (itemTop < 0) {
synteticScrollToY(scrollTo);
return;
}
auto to = App::histItemById(_channel, msgId);
auto scrollTo = snap(itemTopForHighlight(to), 0, _scroll->scrollTopMax());
animatedScrollAttachedToItem(to, scrollTo);
_scrollToAnimation.finish();
auto maxAnimatedDelta = _scroll->height();
auto transition = anim::sineInOut;
auto scrollTop = _scroll->scrollTop();
if (scrollTo > scrollTop + maxAnimatedDelta) {
scrollTop = scrollTo - maxAnimatedDelta;
synteticScrollToY(scrollTop);
transition = anim::easeOutCubic;
} else if (scrollTo + maxAnimatedDelta < scrollTop) {
scrollTop = scrollTo + maxAnimatedDelta;
synteticScrollToY(scrollTop);
transition = anim::easeOutCubic;
}
_scrollToAnimation.start([this, itemId = attachTo->fullId()] { scrollToAnimationCallback(itemId); }, scrollTop - itemTop, scrollTo - itemTop, st::slideDuration, anim::sineInOut);
}
void HistoryWidget::scrollToAnimationCallback(FullMsgId attachToId) {
auto itemTop = _list->itemTop(App::histItemById(attachToId));
if (itemTop < 0) {
_scrollToAnimation.finish();
} else {
synteticScrollToY(qRound(_scrollToAnimation.current()) + itemTop);
}
if (!_scrollToAnimation.animating()) {
preloadHistoryByScroll();
checkReplyReturns();
}
}
void HistoryWidget::highlightMessage(HistoryItem *context) {
@ -744,8 +746,10 @@ void HistoryWidget::highlightMessage(HistoryItem *context) {
}
}
int HistoryWidget::itemTopForHighlight(HistoryItem *item) const {
int HistoryWidget::itemTopForHighlight(gsl::not_null<HistoryItem*> item) const {
auto itemTop = _list->itemTop(item);
t_assert(itemTop >= 0);
auto heightLeft = (_scroll->height() - item->height());
if (heightLeft <= 0) {
return itemTop;
@ -1095,10 +1099,10 @@ void HistoryWidget::sendActionDone(const MTPBool &result, mtpRequestId req) {
void HistoryWidget::activate() {
if (_history) {
if (!_histInited) {
updateListSize(true);
if (!_historyInited) {
updateHistoryGeometry(true);
} else if (hasPendingResizedItems()) {
updateListSize();
updateHistoryGeometry();
}
}
if (App::wnd()) App::wnd()->setInnerFocus();
@ -1249,7 +1253,7 @@ void HistoryWidget::notify_migrateUpdated(PeerData *peer) {
} else {
_migrated = migrated;
_list->notifyMigrateUpdated();
updateListSize();
updateHistoryGeometry();
}
}
} else if (_migrated && _migrated->peer == peer && peer->migrateTo() != _peer) {
@ -1697,7 +1701,7 @@ void HistoryWidget::fastShowAtEnd(History *h) {
clearAllLoadRequests();
setMsgId(ShowAtUnreadMsgId);
_histInited = false;
_historyInited = false;
if (h->isReadyFor(_showAtMsgId)) {
historyLoaded();
@ -1788,9 +1792,10 @@ void HistoryWidget::showHistory(const PeerId &peerId, MsgId showAtMsgId, bool re
}
setMsgId(showAtMsgId);
if (_histInited) {
animatedScrollToItem(_showAtMsgId);
highlightMessage(App::histItemById(_channel, _showAtMsgId));
if (_historyInited) {
auto item = getItemFromHistoryOrMigrated(_showAtMsgId);
animatedScrollToY(countInitialScrollTop(), item);
highlightMessage(item);
} else {
historyLoaded();
}
@ -1829,6 +1834,7 @@ void HistoryWidget::showHistory(const PeerId &peerId, MsgId showAtMsgId, bool re
destroyUnreadBar();
destroyPinnedBar();
_scrollToAnimation.finish();
_history = _migrated = nullptr;
_peer = nullptr;
_channel = NoChannel;
@ -1853,7 +1859,7 @@ void HistoryWidget::showHistory(const PeerId &peerId, MsgId showAtMsgId, bool re
clearInlineBot();
_showAtMsgId = showAtMsgId;
_histInited = false;
_historyInited = false;
if (peerId) {
_peer = App::peer(peerId);
@ -2517,7 +2523,7 @@ void HistoryWidget::messagesReceived(PeerData *peer, const MTPmessages_Messages
setMsgId(_delayedShowAtMsgId);
_histInited = false;
_historyInited = false;
historyLoaded();
}
}
@ -2723,35 +2729,63 @@ void HistoryWidget::visibleAreaUpdated() {
}
void HistoryWidget::preloadHistoryIfNeeded() {
if (_firstLoadRequest || _scroll->isHidden() || !_peer) return;
if (_firstLoadRequest || _scroll->isHidden() || !_peer) {
return;
}
updateHistoryDownVisibility();
if (!_scrollToAnimation.animating()) {
preloadHistoryByScroll();
checkReplyReturns();
}
int st = _scroll->scrollTop(), stm = _scroll->scrollTopMax(), sh = _scroll->height();
if (st + kPreloadHeightsCount * sh >= stm) {
auto scrollTop = _scroll->scrollTop();
if (scrollTop != _lastScrollTop) {
_lastScrolled = getms();
_lastScrollTop = scrollTop;
}
}
void HistoryWidget::preloadHistoryByScroll() {
if (_firstLoadRequest || _scroll->isHidden() || !_peer) {
return;
}
auto scrollTop = _scroll->scrollTop();
auto scrollTopMax = _scroll->scrollTopMax();
auto scrollHeight = _scroll->height();
if (scrollTop + kPreloadHeightsCount * scrollHeight >= scrollTopMax) {
loadMessagesDown();
}
if (st <= kPreloadHeightsCount * sh) {
if (scrollTop <= kPreloadHeightsCount * scrollHeight) {
loadMessages();
}
}
void HistoryWidget::checkReplyReturns() {
if (_firstLoadRequest || _scroll->isHidden() || !_peer) {
return;
}
auto scrollTop = _scroll->scrollTop();
auto scrollTopMax = _scroll->scrollTopMax();
auto scrollHeight = _scroll->height();
while (_replyReturn) {
bool below = (_replyReturn->detached() && _replyReturn->history() == _history && !_history->isEmpty() && _replyReturn->id < _history->blocks.back()->items.back()->id);
if (!below) below = (_replyReturn->detached() && _replyReturn->history() == _migrated && !_history->isEmpty());
if (!below) below = (_replyReturn->detached() && _migrated && _replyReturn->history() == _migrated && !_migrated->isEmpty() && _replyReturn->id < _migrated->blocks.back()->items.back()->id);
if (!below && !_replyReturn->detached()) below = (st >= stm) || (_list->itemTop(_replyReturn) < st + sh / 2);
auto below = (_replyReturn->detached() && _replyReturn->history() == _history && !_history->isEmpty() && _replyReturn->id < _history->blocks.back()->items.back()->id);
if (!below) {
below = (_replyReturn->detached() && _replyReturn->history() == _migrated && !_history->isEmpty());
}
if (!below) {
below = (_replyReturn->detached() && _migrated && _replyReturn->history() == _migrated && !_migrated->isEmpty() && _replyReturn->id < _migrated->blocks.back()->items.back()->id);
}
if (!below && !_replyReturn->detached()) {
below = (scrollTop >= scrollTopMax) || (_list->itemTop(_replyReturn) < scrollTop + scrollHeight / 2);
}
if (below) {
calcNextReplyReturn();
} else {
break;
}
}
if (st != _lastScrollTop) {
_lastScrolled = getms();
_lastScrollTop = st;
}
}
void HistoryWidget::onInlineBotCancel() {
@ -3113,10 +3147,10 @@ void HistoryWidget::doneShow() {
updateReportSpamStatus();
updateBotKeyboard();
updateControlsVisibility();
if (!_histInited) {
updateListSize(true);
if (!_historyInited) {
updateHistoryGeometry(true);
} else if (hasPendingResizedItems()) {
updateListSize();
updateHistoryGeometry();
}
preloadHistoryIfNeeded();
if (App::wnd()) {
@ -4150,7 +4184,7 @@ void HistoryWidget::inlineBotChanged() {
void HistoryWidget::onFieldResize() {
moveFieldControls();
updateListSize();
updateHistoryGeometry();
updateField();
}
@ -4637,7 +4671,7 @@ void HistoryWidget::onReportSpamClear() {
void HistoryWidget::peerMessagesUpdated(PeerId peer) {
if (_peer && _list && peer == _peer->id) {
updateListSize();
updateHistoryGeometry();
updateBotKeyboard();
if (!_scroll->isHidden()) {
bool unblock = isBlocked(), botStart = isBotStart(), joinChannel = isJoinChannel(), muteUnmute = isMuteUnmute();
@ -4712,8 +4746,8 @@ void HistoryWidget::notify_historyItemLayoutChanged(const HistoryItem *item) {
}
void HistoryWidget::notify_handlePendingHistoryUpdate() {
if (hasPendingResizedItems()) {
updateListSize();
if (hasPendingResizedItems() || _updateHistoryGeometryRequired) {
updateHistoryGeometry();
_list->update();
}
}
@ -4746,7 +4780,7 @@ void HistoryWidget::updateControlsGeometry() {
_reportSpamPanel->setGeometryToLeft(0, _scroll->y(), _chatWidth, _reportSpamPanel->height());
}
updateListSize(false, false, { ScrollChangeAdd, App::main() ? App::main()->contentScrollAddToY() : 0 });
updateHistoryGeometry(false, false, { ScrollChangeAdd, App::main() ? App::main()->contentScrollAddToY() : 0 });
updateFieldSize();
@ -4818,8 +4852,64 @@ MsgId HistoryWidget::replyToId() const {
return _replyToId ? _replyToId : (_kbReplyTo ? _kbReplyTo->id : 0);
}
void HistoryWidget::updateListSize(bool initial, bool loadedDown, const ScrollChange &change) {
if (!_history || (initial && _histInited) || (!initial && !_histInited)) return;
int HistoryWidget::countInitialScrollTop() {
auto result = ScrollMax;
if (_history->scrollTopItem || (_migrated && _migrated->scrollTopItem)) {
result = _list->historyScrollTop();
} else if (_showAtMsgId && (_showAtMsgId > 0 && -_showAtMsgId < ServerMaxMsgId)) {
auto item = getItemFromHistoryOrMigrated(_showAtMsgId);
auto itemTop = _list->itemTop(item);
if (itemTop < 0) {
setMsgId(0);
return countInitialScrollTop();
} else {
result = itemTopForHighlight(item);
highlightMessage(item);
}
} else if (_history->unreadBar || (_migrated && _migrated->unreadBar)) {
result = unreadBarTop();
} else {
return countAutomaticScrollTop();
}
return qMin(result, _scroll->scrollTopMax());
}
int HistoryWidget::countAutomaticScrollTop() {
auto result = ScrollMax;
if (_migrated && _migrated->showFrom) {
result = _list->itemTop(_migrated->showFrom);
if (result < _scroll->scrollTopMax() + HistoryMessageUnreadBar::height() - HistoryMessageUnreadBar::marginTop()) {
_migrated->addUnreadBar();
if (hasPendingResizedItems()) {
updateListSize();
}
if (_migrated->unreadBar) {
setMsgId(ShowAtUnreadMsgId);
result = countInitialScrollTop();
App::wnd()->checkHistoryActivation();
return result;
}
}
} else if (_history->showFrom) {
result = _list->itemTop(_history->showFrom);
if (result < _scroll->scrollTopMax() + HistoryMessageUnreadBar::height() - HistoryMessageUnreadBar::marginTop()) {
_history->addUnreadBar();
if (hasPendingResizedItems()) {
updateListSize();
}
if (_history->unreadBar) {
setMsgId(ShowAtUnreadMsgId);
result = countInitialScrollTop();
App::wnd()->checkHistoryActivation();
return result;
}
}
}
return qMin(result, _scroll->scrollTopMax());
}
void HistoryWidget::updateHistoryGeometry(bool initial, bool loadedDown, const ScrollChange &change) {
if (!_history || (initial && _historyInited) || (!initial && !_historyInited)) return;
if (_firstLoadRequest || _a_show.animating()) {
return; // scrollTopMax etc are not working after recountHeight()
}
@ -4858,16 +4948,8 @@ void HistoryWidget::updateListSize(bool initial, bool loadedDown, const ScrollCh
controller()->floatPlayerAreaUpdated().notify(true);
}
_list->recountHeight();
bool washidden = _scroll->isHidden();
if (washidden) {
_scroll->show();
}
_list->updateSize();
if (washidden) {
_scroll->hide();
}
updateListSize();
_updateHistoryGeometryRequired = false;
if ((!initial && !wasAtBottom) || (loadedDown && (!_history->showFrom || _history->unreadBar || _history->loadedAtBottom()) && (!_migrated || !_migrated->showFrom || _migrated->unreadBar || _history->loadedAtBottom()))) {
int toY = _list->historyScrollTop();
@ -4891,71 +4973,29 @@ void HistoryWidget::updateListSize(bool initial, bool loadedDown, const ScrollCh
}
if (initial) {
_histInited = true;
_historyInited = true;
}
int32 toY = ScrollMax;
if (initial && (_history->scrollTopItem || (_migrated && _migrated->scrollTopItem))) {
toY = _list->historyScrollTop();
} else if (initial && _migrated && _showAtMsgId < 0 && -_showAtMsgId < ServerMaxMsgId) {
auto item = App::histItemById(0, -_showAtMsgId);
auto iy = _list->itemTop(item);
if (iy < 0) {
setMsgId(0);
_histInited = false;
return updateListSize(initial, false, change);
} else {
toY = itemTopForHighlight(item);
highlightMessage(item);
}
} else if (initial && _showAtMsgId > 0) {
auto item = App::histItemById(_channel, _showAtMsgId);
auto iy = _list->itemTop(item);
if (iy < 0) {
setMsgId(0);
_histInited = false;
return updateListSize(initial, false, change);
} else {
toY = itemTopForHighlight(item);
highlightMessage(item);
}
} else if (initial && (_history->unreadBar || (_migrated && _migrated->unreadBar))) {
toY = unreadBarTop();
} else if (_migrated && _migrated->showFrom) {
toY = _list->itemTop(_migrated->showFrom);
if (toY < _scroll->scrollTopMax() + HistoryMessageUnreadBar::height() - HistoryMessageUnreadBar::marginTop()) {
_migrated->addUnreadBar();
if (_migrated->unreadBar) {
setMsgId(ShowAtUnreadMsgId);
_histInited = false;
updateListSize(true);
App::wnd()->checkHistoryActivation();
return;
}
}
} else if (_history->showFrom) {
toY = _list->itemTop(_history->showFrom);
if (toY < _scroll->scrollTopMax() + st::historyUnreadBarHeight) {
_history->addUnreadBar();
if (_history->unreadBar) {
setMsgId(ShowAtUnreadMsgId);
_histInited = false;
updateListSize(true);
App::wnd()->checkHistoryActivation();
return;
}
}
} else {
}
auto scrollMax = _scroll->scrollTopMax();
accumulate_min(toY, scrollMax);
if (_scroll->scrollTop() == toY) {
auto newScrollTop = initial ? countInitialScrollTop() : countAutomaticScrollTop();
if (_scroll->scrollTop() == newScrollTop) {
visibleAreaUpdated();
} else {
synteticScrollToY(toY);
synteticScrollToY(newScrollTop);
}
}
void HistoryWidget::updateListSize() {
_list->recountHeight();
auto washidden = _scroll->isHidden();
if (washidden) {
_scroll->show();
}
_list->updateSize();
if (washidden) {
_scroll->hide();
}
_updateHistoryGeometryRequired = true;
}
int HistoryWidget::unreadBarTop() const {
auto getUnreadBar = [this]() -> HistoryItem* {
if (_migrated && _migrated->unreadBar) {
@ -4979,9 +5019,9 @@ int HistoryWidget::unreadBarTop() const {
void HistoryWidget::addMessagesToFront(PeerData *peer, const QVector<MTPMessage> &messages) {
_list->messagesReceived(peer, messages);
if (!_firstLoadRequest) {
updateListSize();
updateHistoryGeometry();
if (_animActiveTimer.isActive() && _activeAnimMsgId > 0 && _migrated && !_migrated->isEmpty() && _migrated->loadedAtBottom() && _migrated->blocks.back()->items.back()->isGroupMigrate() && _list->historyTop() != _list->historyDrawTop() && _history) {
HistoryItem *animActiveItem = App::histItemById(_history->channelId(), _activeAnimMsgId);
auto animActiveItem = App::histItemById(_history->channelId(), _activeAnimMsgId);
if (animActiveItem && animActiveItem->isGroupMigrate()) {
_activeAnimMsgId = -_migrated->blocks.back()->items.back()->id;
}
@ -4993,7 +5033,7 @@ void HistoryWidget::addMessagesToFront(PeerData *peer, const QVector<MTPMessage>
void HistoryWidget::addMessagesToBack(PeerData *peer, const QVector<MTPMessage> &messages) {
_list->messagesReceivedDown(peer, messages);
if (!_firstLoadRequest) {
updateListSize(false, true, { ScrollChangeNoJumpToBottom, 0 });
updateHistoryGeometry(false, true, { ScrollChangeNoJumpToBottom, 0 });
}
}
@ -5976,7 +6016,7 @@ void HistoryWidget::peerUpdated(PeerData *data) {
if (pinnedMsgVisibilityUpdated()) {
resize = true;
}
updateListSize();
updateHistoryGeometry();
if (_peer->isChannel()) updateReportSpamStatus();
if (App::api()) {
if (data->isChat() && data->asChat()->noParticipantInfo()) {
@ -6102,13 +6142,22 @@ void HistoryWidget::onClearSelected() {
if (_list) _list->clearSelectedItems();
}
HistoryItem *HistoryWidget::getItemFromHistoryOrMigrated(MsgId genericMsgId) const {
if (genericMsgId < 0 && -genericMsgId < ServerMaxMsgId && _migrated) {
return App::histItemById(_migrated->channelId(), -genericMsgId);
}
return App::histItemById(_channel, genericMsgId);
}
void HistoryWidget::onAnimActiveStep() {
if (!_history || !_activeAnimMsgId || (_activeAnimMsgId < 0 && (!_migrated || -_activeAnimMsgId >= ServerMaxMsgId))) {
return _animActiveTimer.stop();
}
HistoryItem *item = (_activeAnimMsgId < 0 && -_activeAnimMsgId < ServerMaxMsgId && _migrated) ? App::histItemById(_migrated->channelId(), -_activeAnimMsgId) : App::histItemById(_channel, _activeAnimMsgId);
if (!item || item->detached()) return _animActiveTimer.stop();
auto item = getItemFromHistoryOrMigrated(_activeAnimMsgId);
if (!item || item->detached()) {
return _animActiveTimer.stop();
}
if (getms() - _animActiveStart > st::activeFadeInDuration + st::activeFadeOutDuration) {
stopAnimActive();
@ -6144,7 +6193,7 @@ void HistoryWidget::updateTopBarSelection() {
_nonEmptySelection = (selectedState.count > 0) || selectedState.textSelected;
_topBar->showSelected(selectedState);
updateControlsVisibility();
updateListSize();
updateHistoryGeometry();
if (!Ui::isLayerShown() && !App::passcoded()) {
if (_nonEmptySelection || (_list && _list->wasSelectedText()) || _recording || isBotStart() || isBlocked() || !_canSendMessages) {
_list->setFocus();

17
Telegram/SourceFiles/historywidget.h
View File

@ -636,7 +636,8 @@ private:
ScrollChangeType type;
int value;
};
void updateListSize(bool initial = false, bool loadedDown = false, const ScrollChange &change = { ScrollChangeNone, 0 });
void updateHistoryGeometry(bool initial = false, bool loadedDown = false, const ScrollChange &change = { ScrollChangeNone, 0 });
void updateListSize();
// Does any of the shown histories has this flag set.
bool hasPendingResizedItems() const {
@ -646,7 +647,7 @@ private:
// Counts scrollTop for placing the scroll right at the unread
// messages bar, choosing from _history and _migrated unreadBar.
int unreadBarTop() const;
int itemTopForHighlight(HistoryItem *item) const;
int itemTopForHighlight(gsl::not_null<HistoryItem*> item) const;
void scrollToCurrentVoiceMessage(FullMsgId fromId, FullMsgId toId);
// Scroll to current y without updating the _lastUserScrolled time.
@ -698,13 +699,20 @@ private:
setFieldText(TextWithTags(), events, undoHistoryAction);
}
HistoryItem *getItemFromHistoryOrMigrated(MsgId genericMsgId) const;
void animatedScrollToItem(MsgId msgId);
void animatedScrollToY(int scrollTo, HistoryItem *attachTo = nullptr);
void highlightMessage(HistoryItem *context);
void updateDragAreas();
// when scroll position or scroll area size changed this method
// updates the boundings of the visible area in HistoryInner
void visibleAreaUpdated();
int countInitialScrollTop();
int countAutomaticScrollTop();
void preloadHistoryByScroll();
void checkReplyReturns();
void scrollToAnimationCallback(FullMsgId attachToId);
bool readyToForward() const;
bool hasSilentToggle() const;
@ -730,7 +738,8 @@ private:
QPointer<HistoryInner> _list;
History *_migrated = nullptr;
History *_history = nullptr;
bool _histInited = false; // initial updateListSize() called
bool _historyInited = false; // Initial updateHistoryGeometry() was called.
bool _updateHistoryGeometryRequired = false; // If updateListSize() was called without updateHistoryGeometry().
int _addToScroll = 0;
int _lastScrollTop = 0; // gifs optimization
@ -739,7 +748,7 @@ private:
TimeMs _lastUserScrolled = 0;
bool _synteticScrollEvent = false;
Animation _scrollToMediaMessageAnimation;
Animation _scrollToAnimation;
Animation _historyDownShown;
bool _historyDownIsShown = false;