Receive typing notifications (#88)

include/ChatPage.h

@@ -31,6 +31,7 @@
 #include "TextInputWidget.h"
 #include "TimelineViewManager.h"
 #include "TopRoomBar.h"
+#include "TypingDisplay.h"
 #include "UserInfoWidget.h"
 
 class ChatPage : public QWidget
@@ -68,6 +69,7 @@ protected:
         void keyPressEvent(QKeyEvent *event) override;
 
 private:
+        void updateTypingUsers(const QString &roomid, const QList<QString> &user_ids);
         void updateDisplayNames(const RoomState &state);
         void loadStateFromCache();
         void showQuickSwitcher();
@@ -92,6 +94,7 @@ private:
 
         TopRoomBar *top_bar_;
         TextInputWidget *text_input_;
+        TypingDisplay *typingDisplay_;
 
         QTimer *sync_timer_;
         int sync_interval_;
@@ -104,6 +107,9 @@ private:
         QMap<QString, RoomState> state_manager_;
         QMap<QString, QSharedPointer<RoomSettings>> settingsManager_;
 
+        // Keeps track of the users currently typing on each room.
+        QMap<QString, QList<QString>> typingUsers_;
+
         QuickSwitcher *quickSwitcher_     = nullptr;
         OverlayModal *quickSwitcherModal_ = nullptr;
 

include/Config.h

@@ -7,9 +7,10 @@
 namespace conf
 {
 // Global settings.
-static const int fontSize       = 12;
-static const int emojiSize      = 14;
-static const int headerFontSize = 21;
+static const int fontSize                   = 12;
+static const int emojiSize                  = 14;
+static const int headerFontSize             = 21;
+static const int typingNotificationFontSize = 11;
 
 // Window geometry.
 namespace window

include/Sync.h

@@ -142,23 +142,30 @@ Timeline::limited() const
         return limited_;
 }
 
-// TODO: Add support for ehpmeral, account_data, undread_notifications
+// TODO: Add support for account_data, undread_notifications
 class JoinedRoom : public Deserializable
 {
 public:
         inline State state() const;
         inline Timeline timeline() const;
+        inline QList<QString> typingUserIDs() const;
 
         void deserialize(const QJsonValue &data) override;
 
 private:
         State state_;
         Timeline timeline_;
-        /* Ephemeral ephemeral_; */
+        QList<QString> typingUserIDs_;
         /* AccountData account_data_; */
         /* UnreadNotifications unread_notifications_; */
 };
 
+inline QList<QString>
+JoinedRoom::typingUserIDs() const
+{
+        return typingUserIDs_;
+}
+
 inline State
 JoinedRoom::state() const
 {

include/TypingDisplay.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <QPaintEvent>
+#include <QWidget>
+
+class TypingDisplay : public QWidget
+{
+        Q_OBJECT
+
+public:
+        TypingDisplay(QWidget *parent = nullptr);
+
+        void setUsers(const QStringList &user_ids);
+
+protected:
+        void paintEvent(QPaintEvent *event) override;
+
+private:
+        QString text_;
+        int leftPadding_;
+};