Merge remote-tracking branch 'origin/master'

include/MatrixClient.h

@@ -44,7 +44,7 @@ public:
 	void fetchUserAvatar(const QString &userId, const QUrl &avatarUrl);
 	void fetchOwnAvatar(const QUrl &avatar_url);
 	void downloadImage(const QString &event_id, const QUrl &url);
-	void messages(const QString &room_id, const QString &from_token) noexcept;
+	void messages(const QString &room_id, const QString &from_token, int limit = 20) noexcept;
 
 	inline QUrl getHomeServer();
 	inline int transactionId();

include/RoomInfoListItem.h

@@ -104,4 +104,5 @@ inline RoomState RoomInfoListItem::state() const
 inline void RoomInfoListItem::setAvatar(const QImage &img)
 {
 	roomAvatar_ = QPixmap::fromImage(img.scaled(IconSize, IconSize, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+	update();
 }

include/TimelineView.h

@@ -111,12 +111,16 @@ private:
 	bool isInitialized = false;
 	bool isTimelineFinished = false;
 	bool isInitialSync = true;
+	bool isPaginationScrollPending_ = false;
 
-	const int SCROLL_BAR_GAP = 300;
+	const int SCROLL_BAR_GAP = 400;
 
 	int scroll_height_ = 0;
 	int previous_max_height_ = 0;
 
+	int oldPosition_;
+	int oldHeight_;
+
 	QList<PendingMessage> pending_msgs_;
 	QSharedPointer<MatrixClient> client_;
 };

src/MatrixClient.cc

@@ -541,7 +541,7 @@ void MatrixClient::initialSync() noexcept
 	};
 
 	QJsonObject filter{{"room",
-			    QJsonObject{{"timeline", QJsonObject{{"limit", 70}}},
+			    QJsonObject{{"timeline", QJsonObject{{"limit", 20}}},
 					{"ephemeral", QJsonObject{{"limit", 0}}}}},
 			   {"presence", QJsonObject{{"not_types", excluded_presence}}}};
 
@@ -677,12 +677,13 @@ void MatrixClient::fetchOwnAvatar(const QUrl &avatar_url)
 	reply->setProperty("endpoint", static_cast<int>(Endpoint::GetOwnAvatar));
 }
 
-void MatrixClient::messages(const QString &room_id, const QString &from_token) noexcept
+void MatrixClient::messages(const QString &room_id, const QString &from_token, int limit) noexcept
 {
 	QUrlQuery query;
 	query.addQueryItem("access_token", token_);
 	query.addQueryItem("from", from_token);
 	query.addQueryItem("dir", "b");
+	query.addQueryItem("limit", QString::number(limit));
 
 	QUrl endpoint(server_);
 	endpoint.setPath(api_url_ + QString("/rooms/%1/messages").arg(room_id));

src/RoomInfoListItem.cc

@@ -189,13 +189,13 @@ void RoomInfoListItem::paintEvent(QPaintEvent *event)
 void RoomInfoListItem::updateUnreadMessageCount(int count)
 {
 	unreadMsgCount_ += count;
-	repaint();
+	update();
 }
 
 void RoomInfoListItem::clearUnreadMessageCount()
 {
 	unreadMsgCount_ = 0;
-	repaint();
+	update();
 }
 
 void RoomInfoListItem::setPressedState(bool state)
@@ -212,7 +212,7 @@ void RoomInfoListItem::setPressedState(bool state)
 void RoomInfoListItem::setState(const RoomState &new_state)
 {
 	state_ = new_state;
-	repaint();
+	update();
 }
 
 void RoomInfoListItem::contextMenuEvent(QContextMenuEvent *event)

src/Splitter.cc

@@ -24,6 +24,7 @@ Splitter::Splitter(QWidget *parent)
     : QSplitter(parent)
 {
 	connect(this, &QSplitter::splitterMoved, this, &Splitter::onSplitterMoved);
+	setChildrenCollapsible(false);
 }
 
 void Splitter::onSplitterMoved(int pos, int index)

src/TimelineView.cc

@@ -58,6 +58,15 @@ void TimelineView::sliderRangeChanged(int min, int max)
 
 	if (max - scroll_area_->verticalScrollBar()->value() < SCROLL_BAR_GAP)
 		scroll_area_->verticalScrollBar()->setValue(max);
+
+	if (isPaginationScrollPending_) {
+		isPaginationScrollPending_ = false;
+
+		int currentHeight = scroll_widget_->size().height();
+		int diff = currentHeight - oldHeight_;
+
+		scroll_area_->verticalScrollBar()->setValue(oldPosition_ + diff);
+	}
 }
 
 void TimelineView::scrollDown()
@@ -67,7 +76,7 @@ void TimelineView::scrollDown()
 
 	// The first time we enter the room move the scroll bar to the bottom.
 	if (!isInitialized) {
-		scroll_area_->ensureVisible(0, scroll_widget_->size().height(), 0, 0);
+		scroll_area_->verticalScrollBar()->setValue(max);
 		isInitialized = true;
 		return;
 	}
@@ -88,17 +97,14 @@ void TimelineView::sliderMoved(int position)
 			return;
 
 		// Prevent user from moving up when there is pagination in progress.
-		if (isPaginationInProgress_) {
+		// TODO: Keep a map of the event ids to filter out duplicates.
-			scroll_area_->verticalScrollBar()->setValue(SCROLL_BAR_GAP);
+		if (isPaginationInProgress_)
 			return;
-		}
 
 		isPaginationInProgress_ = true;
-		scroll_height_ = scroll_area_->verticalScrollBar()->value();
-		previous_max_height_ = scroll_area_->verticalScrollBar()->maximum();
 
 		// FIXME: Maybe move this to TimelineViewManager to remove the extra calls?
-		client_.data()->messages(room_id_, prev_batch_token_);
+		client_->messages(room_id_, prev_batch_token_);
 	}
 }
 
@@ -130,11 +136,15 @@ void TimelineView::addBackwardsEvents(const QString &room_id, const RoomMessages
 	// Reverse again to render them.
 	std::reverse(items.begin(), items.end());
 
+	oldPosition_ = scroll_area_->verticalScrollBar()->value();
+	oldHeight_ = scroll_widget_->size().height();
+
 	for (const auto &item : items)
 		addTimelineItem(item, TimelineDirection::Top);
 
 	prev_batch_token_ = msgs.end();
 	isPaginationInProgress_ = false;
+	isPaginationScrollPending_ = true;
 }
 
 TimelineItem *TimelineView::parseMessageEvent(const QJsonObject &event, TimelineDirection direction)
@@ -216,11 +226,6 @@ int TimelineView::addEvents(const Timeline &timeline)
 	QSettings settings;
 	QString localUser = settings.value("auth/user_id").toString();
 
-	if (isInitialSync) {
-		prev_batch_token_ = timeline.previousBatch();
-		isInitialSync = false;
-	}
-
 	for (const auto &event : timeline.events()) {
 		TimelineItem *item = parseMessageEvent(event.toObject(), TimelineDirection::Bottom);
 		auto sender = event.toObject().value("sender").toString();
@@ -233,6 +238,13 @@ int TimelineView::addEvents(const Timeline &timeline)
 		}
 	}
 
+	if (isInitialSync) {
+		prev_batch_token_ = timeline.previousBatch();
+		isInitialSync = false;
+
+		client_->messages(room_id_, prev_batch_token_);
+	}
+
 	return message_count;
 }
 

src/TimelineViewManager.cc

@@ -119,9 +119,10 @@ void TimelineViewManager::setHistoryView(const QString &room_id)
 
 	active_room_ = room_id;
 	auto widget = views_.value(room_id);
-	widget->scrollDown();
 
 	setCurrentWidget(widget.data());
+
+	widget->scrollDown();
 }
 
 QMap<QString, QString> TimelineViewManager::NICK_COLORS;