Add visual indication that data is being fetched

This turns `paginationInProgress` field of `TimelineModel` into a `Q_PROPERTY`, so the Ui can bind to it.
For the moment, I'm showing the same spinner as we do during initial sync. It's not ideal, on the count of being giant and in the middle but it's better than nothing. We can make it more subtle later.
This commit is contained in:
Lasath Fernando 2020-04-28 02:07:24 -07:00
parent 19ec8d261d
commit 1f9d3024b1
3 changed files with 23 additions and 6 deletions

View file

@ -93,7 +93,7 @@ Page {
BusyIndicator { BusyIndicator {
anchors.centerIn: parent anchors.centerIn: parent
running: timelineManager.isInitialSync running: timelineManager.isInitialSync || chat.model.paginationInProgress
height: 200 height: 200
width: 200 width: 200
z: 3 z: 3

View file

@ -432,15 +432,26 @@ TimelineModel::canFetchMore(const QModelIndex &) const
return false; return false;
} }
void
TimelineModel::setPaginationInProgress(const bool paginationInProgress)
{
if (m_paginationInProgress == paginationInProgress) {
return;
}
m_paginationInProgress = paginationInProgress;
emit paginationInProgressChanged(m_paginationInProgress);
}
void void
TimelineModel::fetchMore(const QModelIndex &) TimelineModel::fetchMore(const QModelIndex &)
{ {
if (paginationInProgress) { if (m_paginationInProgress) {
nhlog::ui()->warn("Already loading older messages"); nhlog::ui()->warn("Already loading older messages");
return; return;
} }
paginationInProgress = true; setPaginationInProgress(true);
mtx::http::MessagesOpts opts; mtx::http::MessagesOpts opts;
opts.room_id = room_id_.toStdString(); opts.room_id = room_id_.toStdString();
opts.from = prev_batch_token_.toStdString(); opts.from = prev_batch_token_.toStdString();
@ -455,12 +466,13 @@ TimelineModel::fetchMore(const QModelIndex &)
mtx::errors::to_string(err->matrix_error.errcode), mtx::errors::to_string(err->matrix_error.errcode),
err->matrix_error.error, err->matrix_error.error,
err->parse_error); err->parse_error);
paginationInProgress = false; emit oldMessagesRetrieved(std::move(res));
setPaginationInProgress(false);
return; return;
} }
emit oldMessagesRetrieved(std::move(res)); emit oldMessagesRetrieved(std::move(res));
paginationInProgress = false; setPaginationInProgress(false);
}); });
} }

View file

@ -124,6 +124,7 @@ class TimelineModel : public QAbstractListModel
Q_PROPERTY(std::vector<QString> typingUsers READ typingUsers WRITE updateTypingUsers NOTIFY Q_PROPERTY(std::vector<QString> typingUsers READ typingUsers WRITE updateTypingUsers NOTIFY
typingUsersChanged) typingUsersChanged)
Q_PROPERTY(QString reply READ reply WRITE setReply NOTIFY replyChanged RESET resetReply) Q_PROPERTY(QString reply READ reply WRITE setReply NOTIFY replyChanged RESET resetReply)
Q_PROPERTY(bool paginationInProgress READ paginationInProgress NOTIFY paginationInProgressChanged)
public: public:
explicit TimelineModel(TimelineViewManager *manager, explicit TimelineModel(TimelineViewManager *manager,
@ -208,6 +209,7 @@ public slots:
} }
} }
std::vector<QString> typingUsers() const { return typingUsers_; } std::vector<QString> typingUsers() const { return typingUsers_; }
bool paginationInProgress() const { return m_paginationInProgress; }
QString reply() const { return reply_; } QString reply() const { return reply_; }
void setReply(QString newReply) void setReply(QString newReply)
@ -246,6 +248,7 @@ signals:
void eventFetched(QString requestingEvent, mtx::events::collections::TimelineEvents event); void eventFetched(QString requestingEvent, mtx::events::collections::TimelineEvents event);
void typingUsersChanged(std::vector<QString> users); void typingUsersChanged(std::vector<QString> users);
void replyChanged(QString reply); void replyChanged(QString reply);
void paginationInProgressChanged(const bool);
private: private:
DecryptionResult decryptEvent( DecryptionResult decryptEvent(
@ -261,6 +264,8 @@ private:
mtx::http::RequestErr err); mtx::http::RequestErr err);
void readEvent(const std::string &id); void readEvent(const std::string &id);
void setPaginationInProgress(const bool paginationInProgress);
QHash<QString, mtx::events::collections::TimelineEvents> events; QHash<QString, mtx::events::collections::TimelineEvents> events;
QSet<QString> read; QSet<QString> read;
QList<QString> pending; QList<QString> pending;
@ -270,8 +275,8 @@ private:
QString prev_batch_token_; QString prev_batch_token_;
bool isInitialSync = true; bool isInitialSync = true;
bool paginationInProgress = false;
bool decryptDescription = true; bool decryptDescription = true;
bool m_paginationInProgress = false;
QString currentId; QString currentId;
QString reply_; QString reply_;