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https://github.com/google/blockly.git
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504de6a98c
Add a condition check so that we don't unset the group ID that is not set by us. Otherwise the multi-select plugin undo/redo will be broken (apply individually instead of all together) Signed-off-by: Hollow Man <hollowman@opensuse.org>
98 lines
2.6 KiB
TypeScript
98 lines
2.6 KiB
TypeScript
/**
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* @license
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* Copyright 2024 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import {IDragStrategy} from '../interfaces/i_draggable.js';
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import {Coordinate} from '../utils.js';
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import * as eventUtils from '../events/utils.js';
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import * as layers from '../layers.js';
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import {RenderedWorkspaceComment} from '../comments.js';
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import {WorkspaceSvg} from '../workspace_svg.js';
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import {CommentMove} from '../events/events_comment_move.js';
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export class CommentDragStrategy implements IDragStrategy {
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private startLoc: Coordinate | null = null;
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private workspace: WorkspaceSvg;
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/** Was there already an event group in progress when the drag started? */
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private inGroup: boolean = false;
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constructor(private comment: RenderedWorkspaceComment) {
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this.workspace = comment.workspace;
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}
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isMovable(): boolean {
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return this.comment.isOwnMovable() && !this.workspace.options.readOnly;
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}
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startDrag(): void {
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this.inGroup = !!eventUtils.getGroup();
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if (!this.inGroup) {
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eventUtils.setGroup(true);
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}
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this.fireDragStartEvent();
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this.startLoc = this.comment.getRelativeToSurfaceXY();
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this.workspace.setResizesEnabled(false);
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this.workspace.getLayerManager()?.moveToDragLayer(this.comment);
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this.comment.setDragging(true);
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}
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drag(newLoc: Coordinate): void {
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this.comment.moveDuringDrag(newLoc);
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}
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endDrag(): void {
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this.fireDragEndEvent();
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this.fireMoveEvent();
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this.workspace
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.getLayerManager()
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?.moveOffDragLayer(this.comment, layers.BLOCK);
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this.comment.setDragging(false);
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this.comment.snapToGrid();
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this.workspace.setResizesEnabled(true);
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if (!this.inGroup) {
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eventUtils.setGroup(false);
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}
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}
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/** Fire a UI event at the start of a comment drag. */
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private fireDragStartEvent() {
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const event = new (eventUtils.get(eventUtils.COMMENT_DRAG))(
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this.comment,
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true,
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);
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eventUtils.fire(event);
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}
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/** Fire a UI event at the end of a comment drag. */
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private fireDragEndEvent() {
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const event = new (eventUtils.get(eventUtils.COMMENT_DRAG))(
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this.comment,
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false,
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);
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eventUtils.fire(event);
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}
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/** Fire a move event at the end of a comment drag. */
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private fireMoveEvent() {
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if (this.comment.isDeadOrDying()) return;
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const event = new (eventUtils.get(eventUtils.COMMENT_MOVE))(
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this.comment,
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) as CommentMove;
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event.setReason(['drag']);
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event.oldCoordinate_ = this.startLoc!;
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event.recordNew();
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eventUtils.fire(event);
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}
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revertDrag(): void {
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if (this.startLoc) this.comment.moveDuringDrag(this.startLoc);
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}
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}
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