Class: Selected
Defined in: packages/blockly/core/events/events_selected.ts:24
Class for a selected event. Notifies listeners that a new element has been selected.
Extends
Properties index
| Property | Description |
|---|---|
| group | An ID for the group of events this block is associated with. |
| oldElementId | The id of the last selected selectable element. |
| newElementId | The id of the newly selected selectable element, or undefined if unselected. |
| type | Type of this event. |
| isBlank | Whether or not the event was constructed without necessary parameters (to be populated by fromJson). |
| workspaceId | The workspace identifier for this event. |
| recordUndo | Whether this event is undoable or not. |
| isUiEvent | Whether or not the event is a UI event. |
Methods index
| Method | Description |
|---|---|
| isNull | Does this event record any change of state? |
| run | Run an event. |
| getEventWorkspace_ | Get workspace the event belongs to. |
| toJson | Encode the event as JSON. |
Constructors
Constructor
new Selected(
opt_oldElementId?,
opt_newElementId?,
opt_workspaceId?
): Selected;
Defined in: packages/blockly/core/events/events_selected.ts:44
Parameters
| Parameter | Type | Description |
|---|---|---|
opt_oldElementId? | string | null | The ID of the previously selected element. Null if no element last selected. Undefined for a blank event. |
opt_newElementId? | string | null | The ID of the selected element. Null if no element currently selected (deselect). Undefined for a blank event. |
opt_workspaceId? | string | The workspace identifier for this event. Null if no element previously selected. Undefined for a blank event. |
Returns
Selected
Overrides
Properties
group
group: string;
Defined in: packages/blockly/core/events/events_abstract.ts:38
An ID for the group of events this block is associated with.
Groups define events that should be treated as an single action from the user's perspective, and should be undone together.
Inherited from
oldElementId?
optional oldElementId?: string;
Defined in: packages/blockly/core/events/events_selected.ts:26
The id of the last selected selectable element.
newElementId?
optional newElementId?: string;
Defined in: packages/blockly/core/events/events_selected.ts:32
The id of the newly selected selectable element, or undefined if unselected.
type
type: EventType = EventType.SELECTED;
Defined in: packages/blockly/core/events/events_selected.ts:34
Type of this event.
Overrides
isBlank
isBlank: boolean = true;
Defined in: packages/blockly/core/events/events_ui_base.ts:25
Whether or not the event was constructed without necessary parameters (to be populated by fromJson).
Inherited from
workspaceId
workspaceId: string;
Defined in: packages/blockly/core/events/events_ui_base.ts:26
The workspace identifier for this event.
Inherited from
recordUndo
recordUndo: boolean = false;
Defined in: packages/blockly/core/events/events_ui_base.ts:29
Whether this event is undoable or not.
Inherited from
isUiEvent
isUiEvent: boolean = true;
Defined in: packages/blockly/core/events/events_ui_base.ts:32
Whether or not the event is a UI event.
Inherited from
Methods
isNull()
isNull(): boolean;
Defined in: packages/blockly/core/events/events_abstract.ts:91
Does this event record any change of state?
Returns
boolean
True if null, false if something changed.
Inherited from
run()
run(_forward): void;
Defined in: packages/blockly/core/events/events_abstract.ts:100
Run an event.
Parameters
| Parameter | Type | Description |
|---|---|---|
_forward | boolean | True if run forward, false if run backward (undo). |
Returns
void
Inherited from
getEventWorkspace_()
getEventWorkspace_(): Workspace;
Defined in: packages/blockly/core/events/events_abstract.ts:111
Get workspace the event belongs to.
Returns
The workspace the event belongs to.
Throws
if workspace is null.
Inherited from
toJson()
toJson(): SelectedJson;
Defined in: packages/blockly/core/events/events_selected.ts:60
Encode the event as JSON.
Returns
JSON representation.