OpenSceneToolbarPopup

EditorWindow that displays as a dropdown popup with two ListView panels — bookmarked scenes and all other scenes. Supports bookmark management (add/remove), edit mode toggling, left-click to open a scene, and right-click context menu for opening with dependencies or additively. Bookmarks are persisted via EditorPrefs.

Definition

Namespace: Paragon.Editor.OpenSceneToolbar Assembly: Paragon.Editor.dll

public class OpenSceneToolbarPopup : EditorWindow

Inheritance: EditorWindow → OpenSceneToolbarPopup

Remarks

The popup is shown via ShowAsDropDown() positioned relative to the toolbar button. It dynamically resizes based on the number of visible items, capped at max_list_size (5) items per list. The window uses two UXML template assets: one for the main layout and one for individual scene list items.

Scene Loading

Scenes are loaded from AssetDatabase on each popup open. The Paragon.Core.SceneManagement.Scene wrapper provides Name, GUID, and Path properties. Opening a scene prompts to save modified scenes first via EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo().

Input Handling

Input	Action
Left-click scene	Opens scene in single mode (replaces current)
Right-click scene	Shows context menu: Open with Dependencies, Open Additive, Open Additive with Dependencies
Click "+" button	Adds scene to bookmarks (edit mode, scene list)
Click "-" button	Removes scene from bookmarks (edit mode, bookmark list)
Click gear icon	Toggles edit mode on/off

Fields

Field	Type	Access	Description
visualTreeAsset	VisualTreeAsset	private	Main popup UXML template
sceneListItemTreeAsset	VisualTreeAsset	private	Per-item UXML template for scene entries
bookmarkedScenes	List<Scene>	private	Currently bookmarked scenes
otherScenes	List<Scene>	private	All non-bookmarked scenes (sorted by name)
isEditModeActive	bool	private	Whether edit mode is active (shows +/- buttons and scene list)

Constants

Constant	Value	Description
width	135	Fixed popup width in pixels
item_height	18	Height of each scene list item in pixels
max_list_size	5	Maximum visible items per list

Static Methods

ToggleDropdown

Creates and shows the popup as a dropdown below the specified button rect.

public static void ToggleDropdown(Rect buttonRect)

Parameter	Type	Description
buttonRect	Rect	The toolbar button's world-space bounds (used for positioning)

Persistence

Key	Storage	Format
"OpenSceneToolbarBookmarks"	EditorPrefs	Comma-separated scene GUIDs

Bookmarks are loaded on each popup open (LoadPrefs) and saved when the popup closes (OnDestroy → SavePrefs). The ResetPrefs method clears all bookmarks.

Common Pitfalls

Edit mode auto-activates when bookmarks are empty. If all bookmarks are removed, isEditModeActive is forced to true so the user can add new bookmarks. It cannot be deactivated until at least one bookmark exists.

Scenes are loaded fresh each time. LoadPrefs() queries AssetDatabase.FindAssets("t:Scene") on every popup open. Deleted scenes are gracefully filtered out — their GUIDs won't match any loaded asset.

See Also

• OpenSceneToolbarDropdown — the toolbar button that toggles this popup

• OpenSceneToolbarOverlay — the SceneView overlay host

• OpenSceneToolbar — system overview