Add basic support for replies (#292)

include/ChatPage.h

@@ -76,6 +76,8 @@ signals:
         void connectionLost();
         void connectionRestored();
 
+        void messageReply(const QString &username, const QString &msg);
+
         void notificationsRetrieved(const mtx::responses::Notifications &);
 
         void uploadFailed(const QString &msg);

include/TextInputWidget.h

@@ -144,6 +144,7 @@ public slots:
         void openFileSelection();
         void hideUploadSpinner();
         void focusLineEdit() { input_->setFocus(); }
+        void addReply(const QString &username, const QString &msg);
 
 private slots:
         void addSelectedEmoji(const QString &emoji);

include/timeline/TimelineItem.h

@@ -212,6 +212,8 @@ private:
         void init();
         //! Add a context menu option to save the image of the timeline item.
         void addSaveImageAction(ImageItem *image);
+        //! Add the reply action in the context menu for widgets that support it.
+        void addReplyAction();
 
         template<class Widget>
         void setupLocalWidgetLayout(Widget *widget, const QString &userid, bool withSender);
@@ -240,6 +242,7 @@ private:
         QAction *showReadReceipts_;
         QAction *markAsRead_;
         QAction *redactMsg_;
+        QAction *replyMsg_;
 
         QHBoxLayout *topLayout_     = nullptr;
         QHBoxLayout *messageLayout_ = nullptr;

src/ChatPage.cc

@@ -605,6 +605,7 @@ ChatPage::ChatPage(QSharedPointer<UserSettings> userSettings, QWidget *parent)
         });
 
         connect(this, &ChatPage::dropToLoginPageCb, this, &ChatPage::dropToLoginPage);
+        connect(this, &ChatPage::messageReply, text_input_, &TextInputWidget::addReply);
 
         instance_ = this;
 }

src/TextInputWidget.cc

@@ -614,3 +614,14 @@ TextInputWidget::paintEvent(QPaintEvent *)
         p.setPen(QPen(borderColor()));
         p.drawLine(QPointF(0, 0), QPointF(width(), 0));
 }
+
+void
+TextInputWidget::addReply(const QString &username, const QString &msg)
+{
+        input_->setText(QString("> %1: %2\n\n").arg(username).arg(msg));
+        input_->setFocus();
+
+        auto cursor = input_->textCursor();
+        cursor.movePosition(QTextCursor::End);
+        input_->setTextCursor(cursor);
+}

src/timeline/TimelineItem.cc

@@ -125,6 +125,7 @@ TimelineItem::TimelineItem(mtx::events::MessageType ty,
   , room_id_{room_id}
 {
         init();
+        addReplyAction();
 
         auto displayName = Cache::displayName(room_id_, userid);
         auto timestamp   = QDateTime::currentDateTime();
@@ -290,6 +291,7 @@ TimelineItem::TimelineItem(const mtx::events::RoomEvent<mtx::events::msg::Notice
   , room_id_{room_id}
 {
         init();
+        addReplyAction();
 
         event_id_            = QString::fromStdString(event.event_id);
         const auto sender    = QString::fromStdString(event.sender);
@@ -341,6 +343,7 @@ TimelineItem::TimelineItem(const mtx::events::RoomEvent<mtx::events::msg::Emote>
   , room_id_{room_id}
 {
         init();
+        addReplyAction();
 
         event_id_         = QString::fromStdString(event.event_id);
         const auto sender = QString::fromStdString(event.sender);
@@ -388,6 +391,7 @@ TimelineItem::TimelineItem(const mtx::events::RoomEvent<mtx::events::msg::Text>
   , room_id_{room_id}
 {
         init();
+        addReplyAction();
 
         event_id_         = QString::fromStdString(event.event_id);
         const auto sender = QString::fromStdString(event.sender);
@@ -610,6 +614,24 @@ TimelineItem::addSaveImageAction(ImageItem *image)
         }
 }
 
+void
+TimelineItem::addReplyAction()
+{
+        if (contextMenu_) {
+                auto replyAction = new QAction("Reply", this);
+                contextMenu_->addAction(replyAction);
+
+                connect(replyAction, &QAction::triggered, this, [this]() {
+                        if (!body_)
+                                return;
+
+                        emit ChatPage::instance()->messageReply(
+                          Cache::displayName(room_id_, descriptionMsg_.userid),
+                          body_->toPlainText());
+                });
+        }
+}
+
 void
 TimelineItem::addAvatar()
 {

src/timeline/TimelineView.cc

@@ -143,7 +143,7 @@ TimelineView::fetchHistory()
 
                 isPaginationInProgress_ = true;
                 getMessages();
-                paginationTimer_->start(5000);
+                paginationTimer_->start(2000);
 
                 return;
         }