Receive typing notifications (#88)

CMakeLists.txt

@@ -125,8 +125,8 @@ endif()
 #
 set(SRC_FILES
     src/AvatarProvider.cc
-    src/ChatPage.cc
     src/Cache.cc
+    src/ChatPage.cc
     src/Deserializable.cc
     src/EmojiCategory.cc
     src/EmojiItemDelegate.cc
@@ -135,9 +135,6 @@ set(SRC_FILES
     src/EmojiProvider.cc
     src/ImageItem.cc
     src/ImageOverlayDialog.cc
-    src/TimelineItem.cc
-    src/TimelineView.cc
-    src/TimelineViewManager.cc
     src/InputValidator.cc
     src/JoinRoomDialog.cc
     src/LeaveRoomDialog.cc
@@ -147,21 +144,25 @@ set(SRC_FILES
     src/MainWindow.cc
     src/MatrixClient.cc
     src/Profile.cc
-    src/RoomInfoListItem.cc
+    src/QuickSwitcher.cc
-    src/RoomMessages.cc
-    src/RoomList.cc
-    src/RoomState.cc
     src/Register.cc
     src/RegisterPage.cc
+    src/RoomInfoListItem.cc
+    src/RoomList.cc
+    src/RoomMessages.cc
+    src/RoomState.cc
     src/Splitter.cc
     src/Sync.cc
     src/TextInputWidget.cc
-    src/TrayIcon.cc
+    src/TimelineItem.cc
+    src/TimelineView.cc
+    src/TimelineViewManager.cc
     src/TopRoomBar.cc
+    src/TrayIcon.cc
+    src/TypingDisplay.cc
     src/UserInfoWidget.cc
     src/Versions.cc
     src/WelcomePage.cc
-    src/QuickSwitcher.cc
     src/main.cc
 
     src/ui/Avatar.cc
@@ -222,23 +223,24 @@ qt5_wrap_cpp(MOC_HEADERS
     include/ImageItem.h
     include/ImageOverlayDialog.h
     include/JoinRoomDialog.h
-    include/TimelineItem.h
-    include/TimelineView.h
-    include/TimelineViewManager.h
     include/LeaveRoomDialog.h
     include/LoginPage.h
     include/LogoutDialog.h
     include/MainWindow.h
     include/MatrixClient.h
+    include/QuickSwitcher.h
     include/RegisterPage.h
     include/RoomInfoListItem.h
     include/RoomList.h
     include/Splitter.h
-    include/UserInfoWidget.h
+    include/TextInputWidget.h
+    include/TimelineItem.h
+    include/TimelineView.h
+    include/TimelineViewManager.h
     include/TopRoomBar.h
     include/TrayIcon.h
-    include/TextInputWidget.h
+    include/TypingDisplay.h
-    include/QuickSwitcher.h
+    include/UserInfoWidget.h
     include/WelcomePage.h
 
     include/ui/Avatar.h

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 fontSize                   = 12;
-static const int emojiSize      = 14;
+static const int emojiSize                  = 14;
-static const int headerFontSize = 21;
+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_;
+};

src/ChatPage.cc

@@ -101,8 +101,10 @@ ChatPage::ChatPage(QSharedPointer<MatrixClient> client, QWidget *parent)
         view_manager_ = new TimelineViewManager(client, this);
         mainContentLayout_->addWidget(view_manager_);
 
-        text_input_ = new TextInputWidget(this);
+        text_input_    = new TextInputWidget(this);
+        typingDisplay_ = new TypingDisplay(this);
         contentLayout_->addWidget(text_input_);
+        contentLayout_->addWidget(typingDisplay_);
 
         user_info_widget_ = new UserInfoWidget(sideBarTopWidget_);
         sideBarTopWidgetLayout_->addWidget(user_info_widget_);
@@ -117,6 +119,15 @@ ChatPage::ChatPage(QSharedPointer<MatrixClient> client, QWidget *parent)
         connect(
           top_bar_, &TopRoomBar::leaveRoom, this, [=]() { client_->leaveRoom(current_room_); });
 
+        connect(room_list_, &RoomList::roomChanged, this, [=](const QString &roomid) {
+                QStringList users;
+
+                if (typingUsers_.contains(roomid))
+                        users = typingUsers_[roomid];
+
+                typingDisplay_->setUsers(users);
+        });
+
         connect(room_list_, &RoomList::roomChanged, this, &ChatPage::changeTopRoomInfo);
         connect(room_list_, &RoomList::roomChanged, text_input_, &TextInputWidget::focusLineEdit);
         connect(
@@ -308,6 +319,8 @@ ChatPage::syncCompleted(const SyncResponse &response)
         auto joined = response.rooms().join();
 
         for (auto it = joined.constBegin(); it != joined.constEnd(); it++) {
+                updateTypingUsers(it.key(), it.value().typingUserIDs());
+
                 RoomState room_state;
 
                 // Merge the new updates for rooms that we are tracking.
@@ -620,6 +633,22 @@ ChatPage::removeRoom(const QString &room_id)
         room_list_->removeRoom(room_id, room_id == current_room_);
 }
 
+void
+ChatPage::updateTypingUsers(const QString &roomid, const QList<QString> &user_ids)
+{
+        QStringList users;
+
+        for (const auto uid : user_ids)
+                users.append(TimelineViewManager::displayName(uid));
+
+        users.sort();
+
+        if (current_room_ == roomid)
+                typingDisplay_->setUsers(users);
+
+        typingUsers_.insert(roomid, users);
+}
+
 ChatPage::~ChatPage()
 {
         sync_timer_->stop();

src/MatrixClient.cc

@@ -611,8 +611,9 @@ void
 MatrixClient::sync() noexcept
 {
         QJsonObject filter{ { "room",
-                              QJsonObject{ { "include_leave", true },
+                              QJsonObject{
-                                           { "ephemeral", QJsonObject{ { "limit", 0 } } } } },
+                                { "include_leave", true },
+                              } },
                             { "presence", QJsonObject{ { "limit", 0 } } } };
 
         QUrlQuery query;

src/Sync.cc

@@ -168,7 +168,21 @@ JoinedRoom::deserialize(const QJsonValue &data)
                         if (!ephemeral.value("events").isArray())
                                 qWarning() << "join/ephemeral/events should be an array";
 
-                        // TODO: Implement ephemeral handling
+                        auto ephemeralEvents = ephemeral.value("events").toArray();
+
+                        for (const auto e : ephemeralEvents) {
+                                auto obj = e.toObject();
+
+                                if (obj.contains("type") && obj.value("type") == "m.typing") {
+                                        auto ids = obj.value("content")
+                                                     .toObject()
+                                                     .value("user_ids")
+                                                     .toArray();
+
+                                        for (const auto uid : ids)
+                                                typingUserIDs_.push_back(uid.toString());
+                                }
+                        }
                 }
         }
 

src/TextInputWidget.cc

@@ -45,13 +45,14 @@ TextInputWidget::TextInputWidget(QWidget *parent)
 {
         setFont(QFont("Emoji One"));
 
+        setFixedHeight(45);
         setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
         setCursor(Qt::ArrowCursor);
-        setStyleSheet("background-color: #fff; height: 45px;");
+        setStyleSheet("background-color: #fff;");
 
         topLayout_ = new QHBoxLayout();
-        topLayout_->setSpacing(2);
+        topLayout_->setSpacing(0);
-        topLayout_->setMargin(4);
+        topLayout_->setContentsMargins(5, 15, 0, 5);
 
         QIcon send_file_icon;
         send_file_icon.addFile(":/icons/icons/clip-dark.png", QSize(), QIcon::Normal, QIcon::Off);
@@ -63,18 +64,19 @@ TextInputWidget::TextInputWidget(QWidget *parent)
 
         spinner_ = new LoadingIndicator(this);
         spinner_->setColor("#acc7dc");
-        spinner_->setFixedHeight(40);
+        spinner_->setFixedHeight(32);
-        spinner_->setFixedWidth(40);
+        spinner_->setFixedWidth(32);
         spinner_->hide();
 
         QFont font;
         font.setPixelSize(conf::fontSize);
 
         input_ = new FilteredTextEdit(this);
-        input_->setFixedHeight(45);
+        input_->setFixedHeight(32);
         input_->setFont(font);
+        input_->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
         input_->setPlaceholderText(tr("Write a message..."));
-        input_->setStyleSheet("color: #333333; border-radius: 0; padding-top: 10px;");
+        input_->setStyleSheet("color: #333333; border: none; margin: 0 5px");
 
         sendMessageBtn_ = new FlatButton(this);
         sendMessageBtn_->setForegroundColor(QColor("#acc7dc"));

src/TypingDisplay.cc

@@ -0,0 +1,56 @@
+#include <QDebug>
+#include <QPainter>
+#include <QPoint>
+
+#include "Config.h"
+#include "TypingDisplay.h"
+
+TypingDisplay::TypingDisplay(QWidget *parent)
+  : QWidget(parent)
+  , leftPadding_{ 57 }
+{
+        QFont font;
+        font.setPixelSize(conf::typingNotificationFontSize);
+
+        setFixedHeight(QFontMetrics(font).height() + 2);
+}
+
+void
+TypingDisplay::setUsers(const QStringList &uid)
+{
+        if (uid.isEmpty())
+                text_.clear();
+        else
+                text_ = uid.join(", ");
+
+        if (uid.size() == 1)
+                text_ += tr(" is typing ...");
+        else if (uid.size() > 1)
+                text_ += tr(" are typing ...");
+
+        update();
+}
+
+void
+TypingDisplay::paintEvent(QPaintEvent *)
+{
+        QPen pen(QColor("#333"));
+
+        QFont font;
+        font.setPixelSize(conf::typingNotificationFontSize);
+        font.setWeight(40);
+        font.setItalic(true);
+
+        QPainter p(this);
+        p.setRenderHint(QPainter::Antialiasing);
+        p.setFont(font);
+        p.setPen(pen);
+
+        QRect region = rect();
+        region.translate(leftPadding_, 0);
+
+        QFontMetrics fm(font);
+        text_ = fm.elidedText(text_, Qt::ElideRight, width() - 3 * leftPadding_);
+
+        p.drawText(region, Qt::AlignTop, text_);
+}