[macOS] Handle bundles as files in the embedded file dialogs.

core/io/dir_access.cpp

@@ -588,6 +588,8 @@ void DirAccess::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("read_link", "path"), &DirAccess::read_link);
 	ClassDB::bind_method(D_METHOD("create_link", "source", "target"), &DirAccess::create_link);
 
+	ClassDB::bind_method(D_METHOD("is_bundle", "path"), &DirAccess::is_bundle);
+
 	ClassDB::bind_method(D_METHOD("set_include_navigational", "enable"), &DirAccess::set_include_navigational);
 	ClassDB::bind_method(D_METHOD("get_include_navigational"), &DirAccess::get_include_navigational);
 	ClassDB::bind_method(D_METHOD("set_include_hidden", "enable"), &DirAccess::set_include_hidden);

core/io/dir_access.h

@@ -160,6 +160,7 @@ class DirAccess : public RefCounted {
 	bool get_include_hidden() const;
 
 	virtual bool is_case_sensitive(const String &p_path) const;
+	virtual bool is_bundle(const String &p_file) const { return false; }
 
 	DirAccess() {}
 	virtual ~DirAccess() {}

doc/classes/DirAccess.xml

@@ -221,6 +221,14 @@
 				Returns the available space on the current directory's disk, in bytes. Returns [code]0[/code] if the platform-specific method to query the available space fails.
 			</description>
 		</method>
+		<method name="is_bundle" qualifiers="const">
+			<return type="bool" />
+			<param index="0" name="path" type="String" />
+			<description>
+				Returns [code]true[/code] if the directory is a macOS bundle.
+				[b]Note:[/b] This method is implemented on macOS.
+			</description>
+		</method>
 		<method name="is_case_sensitive" qualifiers="const">
 			<return type="bool" />
 			<param index="0" name="path" type="String" />

editor/gui/editor_file_dialog.cpp

@@ -185,6 +185,7 @@ void EditorFileDialog::_update_theme_item_cache() {
 	theme_cache.favorites_up = get_editor_theme_icon(SNAME("MoveUp"));
 	theme_cache.favorites_down = get_editor_theme_icon(SNAME("MoveDown"));
 	theme_cache.create_folder = get_editor_theme_icon(SNAME("FolderCreate"));
+	theme_cache.open_folder = get_editor_theme_icon(SNAME("FolderBrowse"));
 
 	theme_cache.filter_box = get_editor_theme_icon(SNAME("Search"));
 	theme_cache.file_sort_button = get_editor_theme_icon(SNAME("Sort"));
@@ -535,7 +536,7 @@ void EditorFileDialog::_action_pressed() {
 	String file_text = file->get_text();
 	String f = file_text.is_absolute_path() ? file_text : dir_access->get_current_dir().path_join(file_text);
 
-	if ((mode == FILE_MODE_OPEN_ANY || mode == FILE_MODE_OPEN_FILE) && dir_access->file_exists(f)) {
+	if ((mode == FILE_MODE_OPEN_ANY || mode == FILE_MODE_OPEN_FILE) && (dir_access->file_exists(f) || dir_access->is_bundle(f))) {
 		_save_to_recent();
 		hide();
 		emit_signal(SNAME("file_selected"), f);
@@ -787,6 +788,12 @@ void EditorFileDialog::_item_list_item_rmb_clicked(int p_item, const Vector2 &p_
 		item_menu->add_icon_item(theme_cache.filesystem, item_text, ITEM_MENU_SHOW_IN_EXPLORER);
 	}
 #endif
+	if (single_item_selected) {
+		Dictionary item_meta = item_list->get_item_metadata(p_item);
+		if (item_meta["bundle"]) {
+			item_menu->add_icon_item(theme_cache.open_folder, TTR("Show Package Contents"), ITEM_MENU_SHOW_BUNDLE_CONTENT);
+		}
+	}
 
 	if (item_menu->get_item_count() > 0) {
 		item_menu->set_position(item_list->get_screen_position() + p_pos);
@@ -849,7 +856,7 @@ void EditorFileDialog::_item_menu_id_pressed(int p_option) {
 		case ITEM_MENU_SHOW_IN_EXPLORER: {
 			String path;
 			int idx = item_list->get_current();
-			if (idx == -1 || item_list->get_selected_items().size() == 0) {
+			if (idx == -1 || !item_list->is_anything_selected()) {
 				// Folder background was clicked. Open this folder.
 				path = ProjectSettings::get_singleton()->globalize_path(dir_access->get_current_dir());
 			} else {
@@ -859,6 +866,20 @@ void EditorFileDialog::_item_menu_id_pressed(int p_option) {
 			}
 			OS::get_singleton()->shell_show_in_file_manager(path, true);
 		} break;
+
+		case ITEM_MENU_SHOW_BUNDLE_CONTENT: {
+			String path;
+			int idx = item_list->get_current();
+			if (idx == -1 || !item_list->is_anything_selected()) {
+				return;
+			}
+			Dictionary item_meta = item_list->get_item_metadata(idx);
+			dir_access->change_dir(item_meta["path"]);
+			callable_mp(this, &EditorFileDialog::update_file_list).call_deferred();
+			callable_mp(this, &EditorFileDialog::update_dir).call_deferred();
+
+			_push_history();
+		} break;
 	}
 }
 
@@ -1026,28 +1047,6 @@ void EditorFileDialog::update_file_list() {
 	}
 	sort_file_info_list(file_infos, file_sort);
 
-	while (!dirs.is_empty()) {
-		const String &dir_name = dirs.front()->get();
-
-		item_list->add_item(dir_name);
-
-		if (display_mode == DISPLAY_THUMBNAILS) {
-			item_list->set_item_icon(-1, folder_thumbnail);
-		} else {
-			item_list->set_item_icon(-1, theme_cache.folder);
-		}
-
-		Dictionary d;
-		d["name"] = dir_name;
-		d["path"] = cdir.path_join(dir_name);
-		d["dir"] = true;
-
-		item_list->set_item_metadata(-1, d);
-		item_list->set_item_icon_modulate(-1, get_dir_icon_color(String(d["path"])));
-
-		dirs.pop_front();
-	}
-
 	List<String> patterns;
 	// build filter
 	if (filter->get_selected() == filter->get_item_count() - 1) {
@@ -1074,6 +1073,44 @@ void EditorFileDialog::update_file_list() {
 		}
 	}
 
+	while (!dirs.is_empty()) {
+		const String &dir_name = dirs.front()->get();
+
+		bool bundle = dir_access->is_bundle(dir_name);
+		bool found = true;
+		if (bundle) {
+			bool match = patterns.is_empty();
+			for (const String &E : patterns) {
+				if (dir_name.matchn(E)) {
+					match = true;
+					break;
+				}
+			}
+			found = match;
+		}
+
+		if (found) {
+			item_list->add_item(dir_name);
+
+			if (display_mode == DISPLAY_THUMBNAILS) {
+				item_list->set_item_icon(-1, folder_thumbnail);
+			} else {
+				item_list->set_item_icon(-1, theme_cache.folder);
+			}
+
+			Dictionary d;
+			d["name"] = dir_name;
+			d["path"] = cdir.path_join(dir_name);
+			d["dir"] = !bundle;
+			d["bundle"] = bundle;
+
+			item_list->set_item_metadata(-1, d);
+			item_list->set_item_icon_modulate(-1, get_dir_icon_color(String(d["path"])));
+		}
+
+		dirs.pop_front();
+	}
+
 	while (!file_infos.is_empty()) {
 		bool match = patterns.is_empty();
 
@@ -1109,6 +1146,7 @@ void EditorFileDialog::update_file_list() {
 			Dictionary d;
 			d["name"] = file_info.name;
 			d["dir"] = false;
+			d["bundle"] = false;
 			d["path"] = file_info.path;
 			item_list->set_item_metadata(-1, d);
 

editor/gui/editor_file_dialog.h

@@ -82,7 +82,8 @@ class EditorFileDialog : public ConfirmationDialog {
 		ITEM_MENU_DELETE,
 		ITEM_MENU_REFRESH,
 		ITEM_MENU_NEW_FOLDER,
-		ITEM_MENU_SHOW_IN_EXPLORER
+		ITEM_MENU_SHOW_IN_EXPLORER,
+		ITEM_MENU_SHOW_BUNDLE_CONTENT,
 	};
 
 	ConfirmationDialog *makedialog = nullptr;
@@ -167,6 +168,7 @@ class EditorFileDialog : public ConfirmationDialog {
 		Ref<Texture2D> parent_folder;
 		Ref<Texture2D> forward_folder;
 		Ref<Texture2D> back_folder;
+		Ref<Texture2D> open_folder;
 		Ref<Texture2D> reload;
 		Ref<Texture2D> toggle_hidden;
 		Ref<Texture2D> toggle_filename_filter;

platform/macos/dir_access_macos.h

@@ -50,6 +50,8 @@ class DirAccessMacOS : public DirAccessUnix {
 
 	virtual bool is_hidden(const String &p_name) override;
 	virtual bool is_case_sensitive(const String &p_path) const override;
+
+	virtual bool is_bundle(const String &p_file) const override;
 };
 
 #endif // UNIX ENABLED

platform/macos/dir_access_macos.mm

@@ -96,4 +96,14 @@
 	return [cs boolValue];
 }
 
+bool DirAccessMacOS::is_bundle(const String &p_file) const {
+	String f = p_file;
+	if (!f.is_absolute_path()) {
+		f = get_current_dir().path_join(f);
+	}
+	f = fix_path(f);
+
+	return [[NSWorkspace sharedWorkspace] isFilePackageAtPath:[NSString stringWithUTF8String:f.utf8().get_data()]];
+}
+
 #endif // UNIX_ENABLED