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LibGUI: Add up & down arrow hooks and input history to TextBox

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This patch adds the ability to enable "input history" on a textbox,
allowing to navigate between the history with the arrow keys.

Also removes a custom TextBox subclass from HackStudio that added
the exact same hooks, and moves it to use the now standard ones.
This commit is contained in:
FalseHonesty 2020-05-26 22:17:06 -04:00 • committed by Andreas Kling
parent 893a9ff5b0
commit 139dbfd5b5
4 changed files with 74 additions and 28 deletions
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19
Libraries/LibGUI/TextBox.h
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@ -35,6 +35,25 @@ class TextBox : public TextEditor {
public:
TextBox();
virtual ~TextBox() override;
Function<void()> on_up_pressed;
Function<void()> on_down_pressed;
void set_history_enabled(bool enabled) { m_history_enabled = enabled; }
void add_current_text_to_history();
private:
virtual void keydown_event(GUI::KeyEvent&) override;
bool has_no_history() const { return !m_history_enabled || m_history.is_empty(); }
bool can_go_backwards_in_history() const { return m_history_index > 0; }
bool can_go_forwards_in_history() const { return m_history_index < static_cast<int>(m_history.size()) - 1; }
void add_input_to_history(String);
bool m_history_enabled { false };
Vector<String> m_history;
int m_history_index { -1 };
String m_saved_input;
};
}