Base+LibGUI: Add insert emoji common action

This adds a common action to invoke the emoji picker.

Userland/Libraries/LibGUI/Action.h

@@ -35,6 +35,7 @@ NonnullRefPtr<Action> make_paste_action(Function<void(Action&)>, Core::Object* p
 NonnullRefPtr<Action> make_delete_action(Function<void(Action&)>, Core::Object* parent = nullptr);
 NonnullRefPtr<Action> make_move_to_front_action(Function<void(Action&)>, Core::Object* parent = nullptr);
 NonnullRefPtr<Action> make_move_to_back_action(Function<void(Action&)>, Core::Object* parent = nullptr);
+NonnullRefPtr<Action> make_insert_emoji_action(Function<void(Action&)>, Core::Object* parent = nullptr);
 NonnullRefPtr<Action> make_fullscreen_action(Function<void(Action&)>, Core::Object* parent = nullptr);
 NonnullRefPtr<Action> make_quit_action(Function<void(Action&)>);
 NonnullRefPtr<Action> make_help_action(Function<void(Action&)>, Core::Object* parent = nullptr);

Userland/Libraries/LibGUI/CommonActions.cpp

@@ -96,6 +96,13 @@ NonnullRefPtr<Action> make_paste_action(Function<void(Action&)> callback, Core::
     return action;
 }
 
+NonnullRefPtr<Action> make_insert_emoji_action(Function<void(Action&)> callback, Core::Object* parent)
+{
+    auto action = Action::create("&Insert Emoji", { Mod_Ctrl | Mod_Alt, Key_Space }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/emoji.png"sv).release_value_but_fixme_should_propagate_errors(), move(callback), parent);
+    action->set_status_tip("Open the Emoji Picker");
+    return action;
+}
+
 NonnullRefPtr<Action> make_fullscreen_action(Function<void(Action&)> callback, Core::Object* parent)
 {
     auto action = Action::create("&Fullscreen", { Mod_None, Key_F11 }, move(callback), parent);

Userland/Libraries/LibGUI/TextEditor.cpp

@@ -17,6 +17,7 @@
 #include <LibGUI/AutocompleteProvider.h>
 #include <LibGUI/Clipboard.h>
 #include <LibGUI/EditingEngine.h>
+#include <LibGUI/EmojiInputDialog.h>
 #include <LibGUI/InputBox.h>
 #include <LibGUI/Menu.h>
 #include <LibGUI/Painter.h>
@@ -105,6 +106,7 @@ void TextEditor::create_actions()
             this);
     }
     m_select_all_action = CommonActions::make_select_all_action([this](auto&) { select_all(); }, this);
+    m_insert_emoji_action = CommonActions::make_insert_emoji_action([&](auto&) { insert_emoji(); }, this);
 }
 
 void TextEditor::set_text(StringView text, AllowCallback allow_callback)
@@ -771,6 +773,17 @@ void TextEditor::select_all()
     update();
 }
 
+void TextEditor::insert_emoji()
+{
+    auto emoji_input_dialog = EmojiInputDialog::construct(window());
+    emoji_input_dialog->set_window_mode(GUI::WindowMode::Passive);
+    if (emoji_input_dialog->exec() != EmojiInputDialog::ExecResult::OK)
+        return;
+
+    auto emoji_code_point = emoji_input_dialog->selected_emoji_text();
+    insert_at_cursor_or_replace_selection(emoji_code_point);
+}
+
 void TextEditor::keydown_event(KeyEvent& event)
 {
     if (!is_editable() && event.key() == KeyCode::Key_Tab)
@@ -1667,12 +1680,14 @@ void TextEditor::set_mode(const Mode mode)
     case Editable:
         m_cut_action->set_enabled(has_selection() && !text_is_secret());
         m_paste_action->set_enabled(true);
+        m_insert_emoji_action->set_enabled(true);
         set_accepts_emoji_input(true);
         break;
     case DisplayOnly:
     case ReadOnly:
         m_cut_action->set_enabled(false);
         m_paste_action->set_enabled(false);
+        m_insert_emoji_action->set_enabled(false);
         set_accepts_emoji_input(false);
         break;
     default:
@@ -1717,6 +1732,7 @@ void TextEditor::context_menu_event(ContextMenuEvent& event)
         m_context_menu->add_action(paste_action());
         m_context_menu->add_separator();
         m_context_menu->add_action(select_all_action());
+        m_context_menu->add_action(insert_emoji_action());
         if (is_multi_line()) {
             m_context_menu->add_separator();
             m_context_menu->add_action(go_to_line_action());

Userland/Libraries/LibGUI/TextEditor.h

@@ -150,6 +150,7 @@ public:
     void delete_previous_char();
     void delete_from_line_start_to_cursor();
     void select_all();
+    void insert_emoji();
     void select_current_line();
     virtual void undo();
     virtual void redo();
@@ -176,6 +177,7 @@ public:
     Action& paste_action() { return *m_paste_action; }
     Action& go_to_line_action() { return *m_go_to_line_action; }
     Action& select_all_action() { return *m_select_all_action; }
+    Action& insert_emoji_action() { return *m_insert_emoji_action; }
 
     void add_custom_context_menu_action(Action&);
 
@@ -394,6 +396,7 @@ private:
     RefPtr<Action> m_paste_action;
     RefPtr<Action> m_go_to_line_action;
     RefPtr<Action> m_select_all_action;
+    RefPtr<Action> m_insert_emoji_action;
     Core::ElapsedTimer m_triple_click_timer;
     NonnullRefPtrVector<Action> m_custom_context_menu_actions;