Terminal: Allow scrolling through terminal history with the mouse wheel

Fixes SerenityOS#470.
rkm · Aug 20, 2019 · c106ec4 · c106ec4
1 parent dc3c6be
commit c106ec4
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Showing 2 changed files with 16 additions and 0 deletions.
diff --git a/Applications/Terminal/TerminalWidget.cpp b/Applications/Terminal/TerminalWidget.cpp
@@ -407,6 +407,19 @@ void TerminalWidget::mouseup_event(GMouseEvent& event)
  GClipboard::the().set_data(selected_text());
 }
 
+void TerminalWidget::mousewheel_event(GMouseEvent& event)
+{
+ if (!is_scrollable())
+ return;
+ m_scrollbar->set_value(m_scrollbar->value() + event.wheel_delta());
+ GFrame::mousewheel_event(event);
+}
+
+bool TerminalWidget::is_scrollable() const
+{
+ return m_scrollbar->is_scrollable();
+}
+
 String TerminalWidget::selected_text() const
 {
  StringBuilder builder;

diff --git a/Applications/Terminal/TerminalWidget.h b/Applications/Terminal/TerminalWidget.h
@@ -39,6 +39,8 @@ class TerminalWidget final : public GFrame
  VT::Position normalized_selection_start() const;
  VT::Position normalized_selection_end() const;
 
+ bool is_scrollable() const;
+
 private:
  // ^GWidget
  virtual void event(CEvent&) override;
@@ -48,6 +50,7 @@ class TerminalWidget final : public GFrame
  virtual void mousedown_event(GMouseEvent&) override;
  virtual void mousemove_event(GMouseEvent&) override;
  virtual void mouseup_event(GMouseEvent&) override;
+ virtual void mousewheel_event(GMouseEvent&) override;
 
  // ^TerminalClient
  virtual void beep() override;