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Code Issues Releases Wiki Activity

Add an animated scroll to current media message.

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This commit is contained in:
John Preston
2017-05-21 20:08:59 +03:00
parent 6bde8cdce4
commit 0bfff65306
4 changed files with 117 additions and 24 deletions
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106
Telegram/SourceFiles/historywidget.cpp
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@@ -59,6 +59,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
#include "storage/file_upload.h"
#include "media/media_audio.h"
#include "media/media_audio_capture.h"
#include "media/player/media_player_instance.h"
#include "storage/localstorage.h"
#include "apiwrap.h"
#include "window/top_bar_widget.h"
@@ -81,6 +82,8 @@ constexpr auto kMessagesPerPage = 50;
constexpr auto kPreloadHeightsCount = 3; // when 3 screens to scroll left make a preload request
constexpr auto kTabbedSelectorToggleTooltipTimeoutMs = 3000;
constexpr auto kTabbedSelectorToggleTooltipCount = 3;
constexpr auto kScrollToVoiceAfterScrolledMs = 1000;
constexpr auto kSkipRepaintWhileScrollMs = 100;
ApiWrap::RequestMessageDataCallback replyEditMessageDataCallback() {
return [](ChannelData *channel, MsgId msgId) {
@@ -633,10 +636,68 @@ HistoryWidget::HistoryWidget(QWidget *parent, gsl::not_null<Window::Controller*>
updateControlsVisibility();
}
});
subscribe(Media::Player::instance()->switchToNextNotifier(), [this](const Media::Player::Instance::Switch &pair) {
if (pair.from.type() == AudioMsgId::Type::Voice) {
scrollToCurrentVoiceMessage(pair.from.contextId(), pair.to);
}
});
orderWidgets();
}
void HistoryWidget::scrollToCurrentVoiceMessage(FullMsgId fromId, FullMsgId toId) {
if (getms() <= _lastUserScrolled + kScrollToVoiceAfterScrolledMs) {
return;
}
if (!_list) {
return;
}
auto from = App::histItemById(fromId);
auto to = App::histItemById(toId);
if (!from || !to) {
return;
}
// If history has pending resize items, the scrollTopItem won't be updated.
// And the scrollTop will be reset back to scrollTopItem + scrollTopOffset.
notify_handlePendingHistoryUpdate();
auto fromTop = _list->itemTop(from);
auto toTop = _list->itemTop(to);
if (fromTop < 0 || toTop < 0) {
return;
}
auto scrollTop = _scroll->scrollTop();
auto scrollBottom = scrollTop + _scroll->height();
auto fromBottom = fromTop + from->height();
if (fromTop < scrollBottom && fromBottom > scrollTop) {
auto toBottom = toTop + to->height();
if ((toTop < scrollTop && toBottom < scrollBottom) || (toTop > scrollTop && toBottom > scrollBottom)) {
auto scrollTo = snap(itemTopForHighlight(to), 0, _scroll->scrollTopMax());
_scrollToMediaMessageAnimation.finish();
_scrollToMediaMessageAnimation.start([this, toId] {
auto toTop = _list->itemTop(App::histItemById(toId));
if (toTop < 0) {
_scrollToMediaMessageAnimation.finish();
} else {
synteticScrollToY(qRound(_scrollToMediaMessageAnimation.current()) + toTop);
}
}, scrollTop - toTop, scrollTo - toTop, 200, anim::sineInOut);
}
}
}
int HistoryWidget::itemTopForHighlight(HistoryItem *item) const {
auto itemTop = _list->itemTop(item);
auto heightLeft = (_scroll->height() - item->height());
if (heightLeft <= 0) {
return itemTop;
}
return qMax(itemTop - (heightLeft / 2), 0);
}
void HistoryWidget::start() {
connect(App::main(), SIGNAL(stickersUpdated()), this, SLOT(onStickersUpdated()));
updateRecentStickers();
@@ -2235,7 +2296,7 @@ void HistoryWidget::historyToDown(History *history) {
migrated->forgetScrollState();
}
if (history == _history) {
_scroll->scrollToY(_scroll->scrollTopMax());
synteticScrollToY(_scroll->scrollTopMax());
}
}
@@ -2571,6 +2632,9 @@ void HistoryWidget::onScroll() {
App::checkImageCacheSize();
preloadHistoryIfNeeded();
visibleAreaUpdated();
if (!_synteticScrollEvent) {
_lastUserScrolled = getms();
}
}
void HistoryWidget::visibleAreaUpdated() {
@@ -2613,9 +2677,9 @@ void HistoryWidget::preloadHistoryIfNeeded() {
}
}
if (st != _lastScroll) {
if (st != _lastScrollTop) {
_lastScrolled = getms();
_lastScroll = st;
_lastScrollTop = st;
}
}
@@ -4531,10 +4595,10 @@ bool HistoryWidget::isItemVisible(HistoryItem *item) {
void HistoryWidget::ui_repaintHistoryItem(const HistoryItem *item) {
if (_peer && _list && (item->history() == _history || (_migrated && item->history() == _migrated))) {
auto ms = getms();
if (_lastScrolled + 100 <= ms) {
if (_lastScrolled + kSkipRepaintWhileScrollMs <= ms) {
_list->repaintItem(item);
} else {
_updateHistoryItems.start(_lastScrolled + 100 - ms);
_updateHistoryItems.start(_lastScrolled + kSkipRepaintWhileScrollMs - ms);
}
}
}
@@ -4543,10 +4607,10 @@ void HistoryWidget::onUpdateHistoryItems() {
if (!_list) return;
auto ms = getms();
if (_lastScrolled + 100 <= ms) {
if (_lastScrolled + kSkipRepaintWhileScrollMs <= ms) {
_list->update();
} else {
_updateHistoryItems.start(_lastScrolled + 100 - ms);
_updateHistoryItems.start(_lastScrolled + kSkipRepaintWhileScrollMs - ms);
}
}
@@ -4732,7 +4796,7 @@ void HistoryWidget::updateListSize(bool initial, bool loadedDown, const ScrollCh
if (_scroll->scrollTop() == toY) {
visibleAreaUpdated();
} else {
_scroll->scrollToY(toY);
synteticScrollToY(toY);
}
return;
}
@@ -4745,27 +4809,27 @@ void HistoryWidget::updateListSize(bool initial, bool loadedDown, const ScrollCh
if (initial && (_history->scrollTopItem || (_migrated && _migrated->scrollTopItem))) {
toY = _list->historyScrollTop();
} else if (initial && _migrated && _showAtMsgId < 0 && -_showAtMsgId < ServerMaxMsgId) {
HistoryItem *item = App::histItemById(0, -_showAtMsgId);
int32 iy = _list->itemTop(item);
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 = (_scroll->height() > item->height()) ? qMax(iy - (_scroll->height() - item->height()) / 2, 0) : iy;
toY = itemTopForHighlight(item);
_animActiveStart = getms();
_animActiveTimer.start(AnimationTimerDelta);
_activeAnimMsgId = _showAtMsgId;
}
} else if (initial && _showAtMsgId > 0) {
HistoryItem *item = App::histItemById(_channel, _showAtMsgId);
int32 iy = _list->itemTop(item);
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 = (_scroll->height() > item->height()) ? qMax(iy - (_scroll->height() - item->height()) / 2, 0) : iy;
toY = itemTopForHighlight(item);
_animActiveStart = getms();
_animActiveTimer.start(AnimationTimerDelta);
_activeAnimMsgId = _showAtMsgId;
@@ -4806,7 +4870,7 @@ void HistoryWidget::updateListSize(bool initial, bool loadedDown, const ScrollCh
if (_scroll->scrollTop() == toY) {
visibleAreaUpdated();
} else {
_scroll->scrollToY(toY);
synteticScrollToY(toY);
}
}
@@ -5187,7 +5251,7 @@ bool HistoryWidget::pinnedMsgVisibilityUpdated() {
result = true;
if (_scroll->scrollTop() != unreadBarTop()) {
_scroll->scrollToY(_scroll->scrollTop() + st::historyReplyHeight);
synteticScrollToY(_scroll->scrollTop() + st::historyReplyHeight);
}
} else if (_pinnedBar->msgId != pinnedMsgId) {
_pinnedBar->msgId = pinnedMsgId;
@@ -5202,7 +5266,7 @@ bool HistoryWidget::pinnedMsgVisibilityUpdated() {
destroyPinnedBar();
result = true;
if (_scroll->scrollTop() != unreadBarTop()) {
_scroll->scrollToY(_scroll->scrollTop() - st::historyReplyHeight);
synteticScrollToY(_scroll->scrollTop() - st::historyReplyHeight);
}
updateControlsGeometry();
}
@@ -6390,7 +6454,7 @@ QPoint HistoryWidget::clampMousePosition(QPoint point) {
}
void HistoryWidget::onScrollTimer() {
int32 d = (_scrollDelta > 0) ? qMin(_scrollDelta * 3 / 20 + 1, int32(MaxScrollSpeed)) : qMax(_scrollDelta * 3 / 20 - 1, -int32(MaxScrollSpeed));
auto d = (_scrollDelta > 0) ? qMin(_scrollDelta * 3 / 20 + 1, int32(MaxScrollSpeed)) : qMax(_scrollDelta * 3 / 20 - 1, -int32(MaxScrollSpeed));
_scroll->scrollToY(_scroll->scrollTop() + d);
}
@@ -6421,4 +6485,10 @@ bool HistoryWidget::touchScroll(const QPoint &delta) {
return true;
}
void HistoryWidget::synteticScrollToY(int y) {
_synteticScrollEvent = true;
_scroll->scrollToY(y);
_synteticScrollEvent = false;
}
HistoryWidget::~HistoryWidget() = default;