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Implement new choosing of shown pinned message.

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This commit is contained in:
John Preston 2020-10-26 13:22:14 +03:00
parent 77fa29f8ce
commit 08f7069370
2 changed files with 44 additions and 10 deletions
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50
Telegram/SourceFiles/history/history_widget.cpp
View file

@ -1608,6 +1608,8 @@ void HistoryWidget::showHistory(
const PeerId &peerId, const PeerId &peerId,
MsgId showAtMsgId, MsgId showAtMsgId,
bool reload) { bool reload) {
_pinnedClickedId = FullMsgId();
MsgId wasMsgId = _showAtMsgId; MsgId wasMsgId = _showAtMsgId;
History *wasHistory = _history; History *wasHistory = _history;
@ -2747,6 +2749,14 @@ void HistoryWidget::onScroll() {
if (!_synteticScrollEvent) { if (!_synteticScrollEvent) {
_lastUserScrolled = crl::now(); _lastUserScrolled = crl::now();
} }
const auto scrollTop = _scroll->scrollTop();
if (scrollTop != _lastScrollTop) {
if (!_synteticScrollEvent) {
checkLastPinnedClickedIdReset(_lastScrollTop, scrollTop);
}
_lastScrolled = crl::now();
_lastScrollTop = scrollTop;
}
} }
bool HistoryWidget::isItemCompletelyHidden(HistoryItem *item) const { bool HistoryWidget::isItemCompletelyHidden(HistoryItem *item) const {
@ -2789,12 +2799,6 @@ void HistoryWidget::preloadHistoryIfNeeded() {
preloadHistoryByScroll(); preloadHistoryByScroll();
checkReplyReturns(); checkReplyReturns();
} }
auto scrollTop = _scroll->scrollTop();
if (scrollTop != _lastScrollTop) {
_lastScrolled = crl::now();
_lastScrollTop = scrollTop;
}
} }
void HistoryWidget::preloadHistoryByScroll() { void HistoryWidget::preloadHistoryByScroll() {
@ -5176,15 +5180,39 @@ void HistoryWidget::updatePinnedViewer() {
|| !_historyInited) { || !_historyInited) {
return; return;
} }
const auto visibleTop = _scroll->scrollTop(); const auto visibleBottom = _scroll->scrollTop() + _scroll->height();
const auto add = (st::historyReplyHeight - _pinnedBarHeight); auto [view, offset] = _list->findViewForPinnedTracking(visibleBottom);
auto [view, offset] = _list->findViewForPinnedTracking(visibleTop + add);
const auto lessThanId = !view const auto lessThanId = !view
? (ServerMaxMsgId - 1) ? (ServerMaxMsgId - 1)
: (view->data()->history() != _history) : (view->data()->history() != _history)
? (view->data()->id + (offset > 0 ? 1 : 0) - ServerMaxMsgId) ? (view->data()->id + (offset > 0 ? 1 : 0) - ServerMaxMsgId)
: (view->data()->id + (offset > 0 ? 1 : 0)); : (view->data()->id + (offset > 0 ? 1 : 0));
_pinnedTracker->trackAround(lessThanId); const auto lastClickedId = !_pinnedClickedId
? (ServerMaxMsgId - 1)
: (!_migrated || _pinnedClickedId.channel)
? _pinnedClickedId.msg
: (_pinnedClickedId.msg - ServerMaxMsgId);
if (_pinnedClickedId && lessThanId <= lastClickedId) {
_pinnedClickedId = FullMsgId();
}
_pinnedTracker->trackAround(std::min(lessThanId, lastClickedId));
}
void HistoryWidget::checkLastPinnedClickedIdReset(
int wasScrollTop,
int nowScrollTop) {
if (_firstLoadRequest
|| _delayedShowAtRequest
|| _scroll->isHidden()
|| !_history
|| !_historyInited) {
return;
}
if (wasScrollTop < nowScrollTop && _pinnedClickedId) {
// User scrolled down.
_pinnedClickedId = FullMsgId();
updatePinnedViewer();
}
} }
void HistoryWidget::setupPinnedTracker() { void HistoryWidget::setupPinnedTracker() {
@ -5268,6 +5296,8 @@ void HistoryWidget::checkPinnedBarState() {
const auto id = _pinnedTracker->currentMessageId(); const auto id = _pinnedTracker->currentMessageId();
if (const auto item = session().data().message(id.message)) { if (const auto item = session().data().message(id.message)) {
Ui::showPeerHistory(item->history()->peer, item->id); Ui::showPeerHistory(item->history()->peer, item->id);
_pinnedClickedId = id.message;
updatePinnedViewer();
} }
}, _pinnedBar->lifetime()); }, _pinnedBar->lifetime());

4
Telegram/SourceFiles/history/history_widget.h
View file

@ -480,6 +480,9 @@ private:
void setupPinnedTracker(); void setupPinnedTracker();
void checkPinnedBarState(); void checkPinnedBarState();
void refreshPinnedBarButton(bool many); void refreshPinnedBarButton(bool many);
void checkLastPinnedClickedIdReset(
int wasScrollTop,
int nowScrollTop);
void sendInlineResult( void sendInlineResult(
not_null<InlineBots::Result*> result, not_null<InlineBots::Result*> result,
@ -596,6 +599,7 @@ private:
std::unique_ptr<HistoryView::PinnedTracker> _pinnedTracker; std::unique_ptr<HistoryView::PinnedTracker> _pinnedTracker;
std::unique_ptr<Ui::PinnedBar> _pinnedBar; std::unique_ptr<Ui::PinnedBar> _pinnedBar;
int _pinnedBarHeight = 0; int _pinnedBarHeight = 0;
FullMsgId _pinnedClickedId;
mtpRequestId _saveEditMsgRequestId = 0; mtpRequestId _saveEditMsgRequestId = 0;