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First version of reading-while-scrolling.

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This commit is contained in:
John Preston
2020-02-11 15:23:51 +04:00
parent db2aa7000a
commit 70408f0e22
12 changed files with 238 additions and 113 deletions
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76
Telegram/SourceFiles/history/history_widget.cpp
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@@ -2265,16 +2265,18 @@ void HistoryWidget::unreadMessageAdded(not_null<HistoryItem*> item) {
// - on second we get wrong doWeReadServerHistory() and read both.
session().data().sendHistoryChangeNotifications();
if (_scroll->scrollTop() + 1 > _scroll->scrollTopMax()) {
destroyUnreadBar();
const auto atBottom = (_scroll->scrollTop() >= _scroll->scrollTopMax());
if (!atBottom) {
return;
}
if (!App::wnd()->doWeReadServerHistory()) {
destroyUnreadBar();
if (!doWeReadServerHistory()) {
return;
}
if (item->isUnreadMention() && !item->isUnreadMedia()) {
session().api().markMediaRead(item);
}
session().api().readServerHistoryForce(_history);
_history->readInboxTill(item);
// Also clear possible scheduled messages notifications.
session().notifications().clearFromHistory(_history);
@@ -2403,7 +2405,9 @@ void HistoryWidget::messagesReceived(PeerData *peer, const MTPmessages_Messages
addMessagesToBack(peer, *histList);
_preloadDownRequest = 0;
preloadHistoryIfNeeded();
if (_history->loadedAtBottom() && App::wnd()) App::wnd()->checkHistoryActivation();
if (_history->loadedAtBottom()) {
App::wnd()->checkHistoryActivation();
}
} else if (_firstLoadRequest == requestId) {
if (toMigrated) {
_history->clear(History::ClearType::Unload);
@@ -2472,30 +2476,21 @@ void HistoryWidget::windowShown() {
}
bool HistoryWidget::doWeReadServerHistory() const {
if (!_history || !_list) return true;
if (_firstLoadRequest || _a_show.animating()) return false;
if (_history->loadedAtBottom()) {
int scrollTop = _scroll->scrollTop();
if (scrollTop + 1 > _scroll->scrollTopMax()) return true;
if (const auto unread = firstUnreadMessage()) {
const auto scrollBottom = scrollTop + _scroll->height();
if (scrollBottom > _list->itemTop(unread)) {
return true;
}
}
}
if (_history->hasNotFreezedUnreadBar()
|| (_migrated && _migrated->hasNotFreezedUnreadBar())) {
return true;
}
return false;
return doWeReadMentions() && !session().supportMode();
}
bool HistoryWidget::doWeReadMentions() const {
if (!_history || !_list) return true;
if (_firstLoadRequest || _a_show.animating()) return false;
return true;
return _history
&& _list
&& !_firstLoadRequest
&& !_a_show.animating()
&& App::wnd()->doWeMarkAsRead();
}
void HistoryWidget::checkHistoryActivation() {
if (_list) {
_list->checkHistoryActivation();
}
}
void HistoryWidget::firstLoadMessages() {
@@ -2714,24 +2709,6 @@ void HistoryWidget::visibleAreaUpdated() {
const auto scrollBottom = scrollTop + _scroll->height();
_list->visibleAreaUpdated(scrollTop, scrollBottom);
controller()->floatPlayerAreaUpdated().notify(true);
const auto atBottom = (scrollTop >= _scroll->scrollTopMax());
if (_history->loadedAtBottom()
&& atBottom
&& App::wnd()->doWeReadServerHistory()) {
// Clear possible scheduled messages notifications.
session().api().readServerHistory(_history);
session().notifications().clearFromHistory(_history);
} else if (_history->loadedAtBottom()
&& (_history->unreadCount() > 0
|| (_migrated && _migrated->unreadCount() > 0))) {
const auto unread = firstUnreadMessage();
const auto unreadVisible = unread
&& (scrollBottom > _list->itemTop(unread));
if (unreadVisible && App::wnd()->doWeReadServerHistory()) {
session().api().readServerHistory(_history);
}
}
}
}
@@ -2820,9 +2797,8 @@ void HistoryWidget::historyDownClicked() {
} else if (_replyReturn && _replyReturn->history() == _migrated) {
showHistory(_peer->id, -_replyReturn->id);
} else if (_peer) {
showHistory(
_peer->id,
session().supportMode() ? ShowAtTheEndMsgId : ShowAtUnreadMsgId);
showHistory(_peer->id, ShowAtTheEndMsgId); // #TODO reading
// session().supportMode() ? ShowAtTheEndMsgId : ShowAtUnreadMsgId);
}
}
@@ -3178,10 +3154,8 @@ void HistoryWidget::doneShow() {
handlePendingHistoryUpdate();
}
preloadHistoryIfNeeded();
if (App::wnd()) {
App::wnd()->checkHistoryActivation();
App::wnd()->setInnerFocus();
}
App::wnd()->checkHistoryActivation();
App::wnd()->setInnerFocus();
}
void HistoryWidget::finishAnimating() {