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Load the initial cache data without blocking the UI

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This commit is contained in:
Konstantinos Sideris 2018-01-21 21:43:21 +02:00
parent c123bada94
commit c59cd0e80b
5 changed files with 52 additions and 37 deletions
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1
CMakeLists.txt
View file

@ -277,6 +277,7 @@ qt5_wrap_cpp(MOC_HEADERS
include/ui/ThemeManager.h
include/AvatarProvider.h
include/Cache.h
include/ChatPage.h
include/CommunitiesListItem.h
include/CommunitiesList.h

14
include/Cache.h
View file

@ -18,11 +18,12 @@
#pragma once
#include <QDir>
#include <QMap>
#include <json.hpp>
#include <lmdb++.h>
#include <mtx/responses.hpp>
class RoomState;
#include "RoomState.h"
//! Used to uniquely identify a list of read receipts.
struct ReadReceiptKey
@ -44,17 +45,19 @@ from_json(const json &j, ReadReceiptKey &key)
key.room_id = j.at("room_id").get<std::string>();
}
class Cache
class Cache : public QObject
{
Q_OBJECT
public:
Cache(const QString &userId);
Cache(const QString &userId, QObject *parent = nullptr);
void setState(const QString &nextBatchToken,
const QMap<QString, QSharedPointer<RoomState>> &states);
bool isInitialized() const;
QString nextBatchToken() const;
QMap<QString, RoomState> states();
void states();
using Invites = std::map<std::string, mtx::responses::InvitedRoom>;
Invites invites();
@ -86,6 +89,9 @@ public:
QByteArray image(const QString &url) const;
void saveImage(const QString &url, const QByteArray &data);
signals:
void statesLoaded(QMap<QString, RoomState> states);
private:
void setNextBatchToken(lmdb::txn &txn, const QString &token);
void insertRoomState(lmdb::txn &txn,

2
include/RoomState.h
View file

@ -77,6 +77,8 @@ private:
QString userAvatar_;
};
Q_DECLARE_METATYPE(RoomState)
template<class Collection>
void
RoomState::updateFromEvents(const std::vector<Collection> &collection)

9
src/Cache.cc
View file

@ -33,8 +33,9 @@ static const lmdb::val CACHE_FORMAT_VERSION_KEY("cache_format_version");
using CachedReceipts = std::multimap<uint64_t, std::string, std::greater<uint64_t>>;
using Receipts = std::map<std::string, std::map<std::string, uint64_t>>;
Cache::Cache(const QString &userId)
: env_{nullptr}
Cache::Cache(const QString &userId, QObject *parent)
: QObject{parent}
, env_{nullptr}
, stateDb_{0}
, roomDb_{0}
, invitesDb_{0}
@ -248,7 +249,7 @@ Cache::removeInvite(const QString &room_id)
txn.commit();
}
QMap<QString, RoomState>
void
Cache::states()
{
QMap<QString, RoomState> states;
@ -301,7 +302,7 @@ Cache::states()
txn.commit();
return states;
emit statesLoaded(states);
}
void

63
src/ChatPage.cc
View file

@ -648,46 +648,51 @@ ChatPage::loadStateFromCache()
qDebug() << "Restored nextBatchToken" << cache_->nextBatchToken();
client_->setNextBatchToken(cache_->nextBatchToken());
// Fetch all the joined room's state.
auto rooms = cache_->states();
qRegisterMetaType<QMap<QString, RoomState>>();
for (auto it = rooms.constBegin(); it != rooms.constEnd(); ++it) {
auto roomState = QSharedPointer<RoomState>(new RoomState(it.value()));
QtConcurrent::run(cache_.data(), &Cache::states);
// Clean up and prepare state for use.
roomState->removeLeaveMemberships();
roomState->resolveName();
roomState->resolveAvatar();
connect(cache_.data(), &Cache::statesLoaded, this, [this](QMap<QString, RoomState> rooms) {
qDebug() << "Cache data loaded";
// Save the current room state.
roomStates_.insert(it.key(), roomState);
for (auto it = rooms.constBegin(); it != rooms.constEnd(); ++it) {
auto roomState = QSharedPointer<RoomState>(new RoomState(it.value()));
// Create or restore the settings for this room.
roomSettings_.insert(it.key(),
QSharedPointer<RoomSettings>(new RoomSettings(it.key())));
// Clean up and prepare state for use.
roomState->removeLeaveMemberships();
roomState->resolveName();
roomState->resolveAvatar();
// Resolve user avatars.
for (const auto membership : roomState->memberships) {
updateUserDisplayName(membership.second);
updateUserAvatarUrl(membership.second);
// Save the current room state.
roomStates_.insert(it.key(), roomState);
// Create or restore the settings for this room.
roomSettings_.insert(
it.key(), QSharedPointer<RoomSettings>(new RoomSettings(it.key())));
// Resolve user avatars.
for (const auto membership : roomState->memberships) {
updateUserDisplayName(membership.second);
updateUserAvatarUrl(membership.second);
}
}
}
// Initializing empty timelines.
view_manager_->initialize(rooms.keys());
// Initializing empty timelines.
view_manager_->initialize(rooms.keys());
// Initialize room list from the restored state and settings.
room_list_->setInitialRooms(roomSettings_, roomStates_);
room_list_->syncInvites(cache_->invites());
// Initialize room list from the restored state and settings.
room_list_->setInitialRooms(roomSettings_, roomStates_);
room_list_->syncInvites(cache_->invites());
// Check periodically if the timelines have been loaded.
consensusTimer_->start(CONSENSUS_TIMEOUT);
// Check periodically if the timelines have been loaded.
consensusTimer_->start(CONSENSUS_TIMEOUT);
// Show the content if consensus can't be achieved.
showContentTimer_->start(SHOW_CONTENT_TIMEOUT);
// Show the content if consensus can't be achieved.
showContentTimer_->start(SHOW_CONTENT_TIMEOUT);
// Start receiving events.
client_->sync();
// Start receiving events.
client_->sync();
});
}
void