Class: CommentChange

Constructor

CommentChange

new CommentChange(opt_comment, opt_oldContents, opt_newContents)

Class for a comment change event.

Parameter
opt_comment	Optional Blockly.WorkspaceComment The comment that is being changed. Undefined for a blank event. Value must not be null.
opt_oldContents	Optional string Previous contents of the comment.
opt_newContents	Optional string New contents of the comment.

Parameter

opt_comment

Optional

Blockly.WorkspaceComment

The comment that is being changed. Undefined for a blank event.

Value must not be null.

opt_oldContents

Optional

string

Previous contents of the comment.

opt_newContents

Optional

string

New contents of the comment.

Extends: Blockly.Events.CommentBase

Properties

commentId

unknown

The ID of the comment this event pertains to.

Inherited from: Blockly.Events.CommentBase#commentId

group

unknown

The event group id for the group this event belongs to. Groups define events that should be treated as an single action from the user's perspective, and should be undone together.

Inherited from: Blockly.Events.CommentBase#group

isBlank

unknown

Whether or not an event is blank.

Inherited from: Blockly.Events.CommentBase#isBlank

isUiEvent

unknown

Whether or not the event is a UI event.

Inherited from: Blockly.Events.Abstract#isUiEvent

recordUndo

unknown

Sets whether the event should be added to the undo stack.

Inherited from: Blockly.Events.CommentBase#recordUndo

type

string

Type of this event.

workspaceId

unknown

The workspace identifier for this event.

Inherited from: Blockly.Events.CommentBase#workspaceId

Methods

fromJson

fromJson(json)

Decode the JSON event.

Parameter
json	Object JSON representation. Value must not be null.

getEventWorkspace_

protected

getEventWorkspace_() returns Blockly.Workspace

Get workspace the event belongs to.

Inherited from: Blockly.Events.Abstract#getEventWorkspace_
Throws: if workspace is null.
Returns: The workspace the event belongs to.

isNull

isNull() returns boolean

Does this event record any change of state?

Returns: boolean False if something changed.

run

run(forward)

Run a change event.

Parameter
forward	boolean True if run forward, false if run backward (undo).

Parameter

forward

boolean

True if run forward, false if run backward (undo).

toJson

toJson() returns Object

Encode the event as JSON.

Returns: non-null Object JSON representation.