Linkify URLs in room topics

closes #52

include/TopRoomBar.h

@@ -32,6 +32,9 @@
 #include "Menu.h"
 #include "RoomSettings.h"
 
+static const QString URL_HTML = "<a href=\"\\1\" style=\"color: #333333\">\\1</a>";
+static const QRegExp URL_REGEX("((?:https?|ftp)://\\S+)");
+
 class TopRoomBar : public QWidget
 {
         Q_OBJECT
@@ -42,7 +45,7 @@ public:
         inline void updateRoomAvatar(const QImage &avatar_image);
         inline void updateRoomAvatar(const QIcon &icon);
         inline void updateRoomName(const QString &name);
-	inline void updateRoomTopic(const QString &topic);
+        inline void updateRoomTopic(QString topic);
         void updateRoomAvatarFromName(const QString &name);
         void setRoomSettings(QSharedPointer<RoomSettings> settings);
 
@@ -52,11 +55,11 @@ protected:
         void paintEvent(QPaintEvent *event) override;
 
 private:
-	QHBoxLayout *top_layout_;
+        QHBoxLayout *topLayout_;
-	QVBoxLayout *text_layout_;
+        QVBoxLayout *textLayout_;
 
-	QLabel *name_label_;
+        QLabel *nameLabel_;
-	QLabel *topic_label_;
+        QLabel *topicLabel_;
 
         QSharedPointer<RoomSettings> roomSettings_;
 
@@ -85,13 +88,18 @@ TopRoomBar::updateRoomAvatar(const QIcon &icon)
 inline void
 TopRoomBar::updateRoomName(const QString &name)
 {
-	QString elidedText = QFontMetrics(name_label_->font()).elidedText(name, Qt::ElideRight, width() * 0.8);
+        QString elidedText =
-	name_label_->setText(elidedText);
+          QFontMetrics(nameLabel_->font()).elidedText(name, Qt::ElideRight, width() * 0.8);
+        nameLabel_->setText(elidedText);
 }
 
 inline void
-TopRoomBar::updateRoomTopic(const QString &topic)
+TopRoomBar::updateRoomTopic(QString topic)
 {
-	QString elidedText = QFontMetrics(topic_label_->font()).elidedText(topic, Qt::ElideRight, width() * 0.8);
+        topic.replace(URL_REGEX, URL_HTML);
-	topic_label_->setText(elidedText);
+
+        QString elidedText =
+          QFontMetrics(topicLabel_->font()).elidedText(topic, Qt::ElideRight, width() * 0.6);
+
+        topicLabel_->setText(topic);
 }

src/TopRoomBar.cc

@@ -28,9 +28,9 @@ TopRoomBar::TopRoomBar(QWidget *parent)
         setMinimumSize(QSize(0, 65));
         setStyleSheet("background-color: #f8fbfe; color: #171919;");
 
-	top_layout_ = new QHBoxLayout();
+        topLayout_ = new QHBoxLayout();
-	top_layout_->setSpacing(10);
+        topLayout_->setSpacing(10);
-	top_layout_->setMargin(10);
+        topLayout_->setMargin(10);
 
         avatar_ = new Avatar(this);
         avatar_->setLetter(QChar('?'));
@@ -38,24 +38,27 @@ TopRoomBar::TopRoomBar(QWidget *parent)
         avatar_->setTextColor(QColor("#555459"));
         avatar_->setSize(35);
 
-	text_layout_ = new QVBoxLayout();
+        textLayout_ = new QVBoxLayout();
-	text_layout_->setSpacing(0);
+        textLayout_->setSpacing(0);
-	text_layout_->setContentsMargins(0, 0, 0, 0);
+        textLayout_->setContentsMargins(0, 0, 0, 0);
 
         QFont roomFont("Open Sans SemiBold");
         roomFont.setPixelSize(conf::topRoomBar::fonts::roomName);
 
-	name_label_ = new QLabel(this);
+        nameLabel_ = new QLabel(this);
-	name_label_->setFont(roomFont);
+        nameLabel_->setFont(roomFont);
 
         QFont descriptionFont("Open Sans");
         descriptionFont.setPixelSize(conf::topRoomBar::fonts::roomDescription);
 
-	topic_label_ = new QLabel(this);
+        topicLabel_ = new QLabel(this);
-	topic_label_->setFont(descriptionFont);
+        topicLabel_->setFont(descriptionFont);
+        topicLabel_->setTextFormat(Qt::RichText);
+        topicLabel_->setTextInteractionFlags(Qt::TextBrowserInteraction);
+        topicLabel_->setOpenExternalLinks(true);
 
-	text_layout_->addWidget(name_label_);
+        textLayout_->addWidget(nameLabel_);
-	text_layout_->addWidget(topic_label_);
+        textLayout_->addWidget(topicLabel_);
 
         settingsBtn_ = new FlatButton(this);
         settingsBtn_->setForegroundColor(QColor("#acc7dc"));
@@ -63,19 +66,22 @@ TopRoomBar::TopRoomBar(QWidget *parent)
         settingsBtn_->setCornerRadius(buttonSize_ / 2);
 
         QIcon settings_icon;
-	settings_icon.addFile(":/icons/icons/vertical-ellipsis.png", QSize(), QIcon::Normal, QIcon::Off);
+        settings_icon.addFile(
+          ":/icons/icons/vertical-ellipsis.png", QSize(), QIcon::Normal, QIcon::Off);
         settingsBtn_->setIcon(settings_icon);
         settingsBtn_->setIconSize(QSize(buttonSize_ / 2, buttonSize_ / 2));
 
-	top_layout_->addWidget(avatar_);
+        topLayout_->addWidget(avatar_);
-	top_layout_->addLayout(text_layout_);
+        topLayout_->addLayout(textLayout_);
-	top_layout_->addStretch(1);
+        topLayout_->addStretch(1);
-	top_layout_->addWidget(settingsBtn_);
+        topLayout_->addWidget(settingsBtn_);
 
         menu_ = new Menu(this);
 
         toggleNotifications_ = new QAction(tr("Disable notifications"), this);
-	connect(toggleNotifications_, &QAction::triggered, this, [=]() { roomSettings_->toggleNotifications(); });
+        connect(toggleNotifications_, &QAction::triggered, this, [=]() {
+                roomSettings_->toggleNotifications();
+        });
 
         menu_->addAction(toggleNotifications_);
 
@@ -86,10 +92,11 @@ TopRoomBar::TopRoomBar(QWidget *parent)
                         toggleNotifications_->setText(tr("Enable notifications"));
 
                 auto pos = mapToGlobal(settingsBtn_->pos());
-		menu_->popup(QPoint(pos.x() + buttonSize_ - menu_->sizeHint().width(), pos.y() + buttonSize_));
+                menu_->popup(
+                  QPoint(pos.x() + buttonSize_ - menu_->sizeHint().width(), pos.y() + buttonSize_));
         });
 
-	setLayout(top_layout_);
+        setLayout(topLayout_);
 }
 
 void
@@ -106,8 +113,8 @@ TopRoomBar::updateRoomAvatarFromName(const QString &name)
 void
 TopRoomBar::reset()
 {
-	name_label_->setText("");
+        nameLabel_->setText("");
-	topic_label_->setText("");
+        topicLabel_->setText("");
         avatar_->setLetter(QChar('?'));
 }