Show widgets as links

2 files changed, 69 insertions, 0 deletions

diff --git a/src/timeline/TimelineModel.cpp b/src/timeline/TimelineModel.cpp

index 6b380f79..d1613d5b 100644
--- a/src/timeline/TimelineModel.cpp
+++ b/src/timeline/TimelineModel.cpp
@@ -285,6 +285,9 @@ qml_mtx_events::fromRoomEventType(qml_mtx_events::EventType t)
     /// m.room.pinned_events
     case qml_mtx_events::PinnedEvents:
         return mtx::events::EventType::RoomPinnedEvents;
+    /// m.widget
+    case qml_mtx_events::Widget:
+        return mtx::events::EventType::Widget;
     // m.sticker
     case qml_mtx_events::Sticker:
         return mtx::events::EventType::Sticker;
@@ -852,6 +855,8 @@ TimelineModel::syncState(const mtx::responses::State &s)
             emit roomTopicChanged();
         else if (std::holds_alternative<StateEvent<state::PinnedEvents>>(e))
             emit pinnedMessagesChanged();
+        else if (std::holds_alternative<StateEvent<state::Widget>>(e))
+            emit widgetLinksChanged();
         else if (std::holds_alternative<StateEvent<state::PowerLevels>>(e)) {
             permissions_.invalidate();
             emit permissionsChanged();
@@ -916,6 +921,8 @@ TimelineModel::addEvents(const mtx::responses::Timeline &timeline)
             emit roomTopicChanged();
         else if (std::holds_alternative<StateEvent<state::PinnedEvents>>(e))
             emit pinnedMessagesChanged();
+        else if (std::holds_alternative<StateEvent<state::Widget>>(e))
+            emit widgetLinksChanged();
         else if (std::holds_alternative<StateEvent<state::PowerLevels>>(e)) {
             permissions_.invalidate();
             emit permissionsChanged();
@@ -2225,6 +2232,63 @@ TimelineModel::pinnedMessages() const
     return list;
 }
 
+QStringList
+TimelineModel::widgetLinks() const
+{
+    auto evs =
+      cache::client()->getStateEventsWithType<mtx::events::state::Widget>(room_id_.toStdString());
+    auto evs2 = cache::client()->getStateEventsWithType<mtx::events::state::Widget>(
+      room_id_.toStdString(), mtx::events::EventType::Widget);
+    evs.insert(
+      evs.end(), std::make_move_iterator(evs2.begin()), std::make_move_iterator(evs2.end()));
+
+    if (evs.empty())
+        return {};
+
+    QStringList list;
+
+    auto user  = utils::localUser();
+    auto av    = QUrl::toPercentEncoding(avatarUrl(user));
+    auto disp  = QUrl::toPercentEncoding(displayName(user));
+    auto theme = UserSettings::instance()->theme();
+    if (theme == QStringLiteral("system"))
+        theme.clear();
+    user = QUrl::toPercentEncoding(user);
+
+    list.reserve(evs.size());
+    for (const auto &p : evs) {
+        auto url = QString::fromStdString(p.content.url);
+        for (const auto &[k, v] : p.content.data)
+            url.replace("$" + QString::fromStdString(k),
+                        QUrl::toPercentEncoding(QString::fromStdString(v)));
+
+        url.replace("$matrix_user_id", user);
+        url.replace("$matrix_room_id", QUrl::toPercentEncoding(room_id_));
+        url.replace("$matrix_display_name", disp);
+        url.replace("$matrix_avatar_url", av);
+
+        url.replace("$matrix_widget_id",
+                    QUrl::toPercentEncoding(QString::fromStdString(p.content.id)));
+
+        // url.replace("$matrix_client_theme", theme);
+        url.replace("$org.matrix.msc2873.client_theme", theme);
+        url.replace("$org.matrix.msc2873.client_id", "im.nheko");
+
+        // compat with some widgets, i.e. FOSDEM
+        url.replace("$theme", theme);
+
+        url = QUrl::toPercentEncoding(url, "/:?&@=%");
+
+        list.push_back(
+          QLatin1String("<a href='%1'>%2</a>")
+            .arg(url,
+                 QString::fromStdString(p.content.name.empty() ? p.state_key : p.content.name)
+                   .toHtmlEscaped()));
+    }
+
+    return list;
+}
+
 crypto::Trust
 TimelineModel::trustlevel() const
 {
diff --git a/src/timeline/TimelineModel.h b/src/timeline/TimelineModel.h

index 556f9f54..b4267e8d 100644
--- a/src/timeline/TimelineModel.h
+++ b/src/timeline/TimelineModel.h
@@ -91,6 +91,8 @@ enum EventType
     Sticker,
     // m.tag
     Tag,
+    // m.widget
+    Widget,
     /// m.room.message
     AudioMessage,
     EmoteMessage,
@@ -178,6 +180,7 @@ class TimelineModel : public QAbstractListModel
     Q_PROPERTY(QString roomAvatarUrl READ roomAvatarUrl NOTIFY roomAvatarUrlChanged)
     Q_PROPERTY(QString roomTopic READ roomTopic NOTIFY roomTopicChanged)
     Q_PROPERTY(QStringList pinnedMessages READ pinnedMessages NOTIFY pinnedMessagesChanged)
+    Q_PROPERTY(QStringList widgetLinks READ widgetLinks NOTIFY widgetLinksChanged)
     Q_PROPERTY(int roomMemberCount READ roomMemberCount NOTIFY roomMemberCountChanged)
     Q_PROPERTY(bool isEncrypted READ isEncrypted NOTIFY encryptionChanged)
     Q_PROPERTY(bool isSpace READ isSpace CONSTANT)
@@ -365,6 +368,7 @@ public slots:
     QString plainRoomName() const;
     QString roomTopic() const;
     QStringList pinnedMessages() const;
+    QStringList widgetLinks() const;
     InputBar *input() { return &input_; }
     Permissions *permissions() { return &permissions_; }
     QString roomAvatarUrl() const;
@@ -407,6 +411,7 @@ signals:
     void plainRoomNameChanged();
     void roomTopicChanged();
     void pinnedMessagesChanged();
+    void widgetLinksChanged();
     void roomAvatarUrlChanged();
     void roomMemberCountChanged();
     void isDirectChanged();