Implement pressing tab to navigate auto completion (#294)

Fixes #287

* Fix pop-up not showing when less than max 

* Select suggestion by pressing Enter

2 files changed, 15 insertions, 0 deletions

diff --git a/include/SuggestionsPopup.hpp b/include/SuggestionsPopup.hpp

index 23549124..80f28466 100644
--- a/include/SuggestionsPopup.hpp
+++ b/include/SuggestionsPopup.hpp
@@ -21,13 +21,18 @@ class PopupItem : public QWidget
         Q_OBJECT
 
         Q_PROPERTY(QColor hoverColor READ hoverColor WRITE setHoverColor)
+        Q_PROPERTY(bool hovering READ hovering WRITE setHovering)
 
 public:
         PopupItem(QWidget *parent, const QString &user_id);
 
+        QString user() const { return user_id_; }
         QColor hoverColor() const { return hoverColor_; }
         void setHoverColor(QColor &color) { hoverColor_ = color; }
 
+        bool hovering() const { return hovering_; }
+        void setHovering(const bool hover) { hovering_ = hover; };
+
 protected:
         void paintEvent(QPaintEvent *event) override;
         void mousePressEvent(QMouseEvent *event) override;
@@ -43,6 +48,9 @@ private:
         QString user_id_;
 
         QColor hoverColor_;
+
+        //! Set if the item is currently being hovered during tab completion (cycling).
+        bool hovering_;
 };
 
 class SuggestionsPopup : public QWidget
@@ -54,10 +62,15 @@ public:
 
 public slots:
         void addUsers(const QVector<SearchResult> &users);
+        void cycleThroughSuggestions();
+        void selectHoveredSuggestion();
 
 signals:
         void itemSelected(const QString &user);
 
 private:
         QVBoxLayout *layout_;
+
+        //! Counter for tab completion (cycling).
+        int tab_clicks_;
 };
diff --git a/include/TextInputWidget.h b/include/TextInputWidget.h

index 927187dd..89eb5947 100644
--- a/include/TextInputWidget.h
+++ b/include/TextInputWidget.h
@@ -73,6 +73,8 @@ signals:
         //! Trigger the suggestion popup.
         void showSuggestions(const QString &query);
         void resultsRetrieved(const QVector<SearchResult> &results);
+        void cycleSuggestions();
+        void selectHoveredSuggestion();
 
 public slots:
         void showResults(const QVector<SearchResult> &results);