LibGUI: Create the emoji buttons only once for EmojiInputDialog

To prevent lag when the displayed code points are redrawn in support of
a search box, only create the GUI::Button objects for the emoji a single
time. Re-use those buttons when adding them to the dialog.

1 files changed, 7 insertions, 1 deletions

diff --git a/Userland/Libraries/LibGUI/EmojiInputDialog.h b/Userland/Libraries/LibGUI/EmojiInputDialog.h
index 214d774db8..acf8981270 100644
--- a/Userland/Libraries/LibGUI/EmojiInputDialog.h
+++ b/Userland/Libraries/LibGUI/EmojiInputDialog.h
@@ -13,6 +13,11 @@ namespace GUI {
 class EmojiInputDialog final : public Dialog {
     C_OBJECT(EmojiInputDialog);
 
+    struct Emoji {
+        u32 code_point { 0 };
+        RefPtr<Button> button;
+    };
+
 public:
     String const& selected_emoji_text() const { return m_selected_emoji_text; }
 
@@ -20,10 +25,11 @@ private:
     virtual void event(Core::Event&) override;
     explicit EmojiInputDialog(Window* parent_window);
 
+    Vector<Emoji> supported_emoji();
     void update_displayed_emoji();
 
     RefPtr<Widget> m_emojis_widget;
-    Vector<u32> m_code_points;
+    Vector<Emoji> m_emojis;
     String m_selected_emoji_text;
 };