fix: Fix bug that caused blocks dragged from non-primary flyouts to be misplaced. (#8753)

* fix: Fix bug that caused blocks dragged from non-primary flyouts to be misplaced.

* chore: Fix docstring.

core/block_flyout_inflater.ts

@@ -35,7 +35,6 @@ const BLOCK_TYPE = 'block';
 export class BlockFlyoutInflater implements IFlyoutInflater {
   protected permanentlyDisabledBlocks = new Set<BlockSvg>();
   protected listeners = new Map<string, browserEvents.Data[]>();
-  protected flyoutWorkspace?: WorkspaceSvg;
   protected flyout?: IFlyout;
   private capacityWrapper: (event: AbstractEvent) => void;
 
@@ -50,13 +49,12 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
    * Inflates a flyout block from the given state and adds it to the flyout.
    *
    * @param state A JSON representation of a flyout block.
-   * @param flyoutWorkspace The workspace to create the block on.
+   * @param flyout The flyout to create the block on.
    * @returns A newly created block.
    */
-  load(state: object, flyoutWorkspace: WorkspaceSvg): FlyoutItem {
-    this.setFlyoutWorkspace(flyoutWorkspace);
-    this.flyout = flyoutWorkspace.targetWorkspace?.getFlyout() ?? undefined;
-    const block = this.createBlock(state as BlockInfo, flyoutWorkspace);
+  load(state: object, flyout: IFlyout): FlyoutItem {
+    this.setFlyout(flyout);
+    const block = this.createBlock(state as BlockInfo, flyout.getWorkspace());
 
     if (!block.isEnabled()) {
       // Record blocks that were initially disabled.
@@ -157,22 +155,18 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
   }
 
   /**
-   * Updates this inflater's flyout workspace.
+   * Updates this inflater's flyout.
    *
-   * @param workspace The workspace of the flyout that owns this inflater.
+   * @param flyout The flyout that owns this inflater.
    */
-  protected setFlyoutWorkspace(workspace: WorkspaceSvg) {
-    if (this.flyoutWorkspace === workspace) return;
+  protected setFlyout(flyout: IFlyout) {
+    if (this.flyout === flyout) return;
 
-    if (this.flyoutWorkspace) {
-      this.flyoutWorkspace.targetWorkspace?.removeChangeListener(
-        this.capacityWrapper,
-      );
+    if (this.flyout) {
+      this.flyout.targetWorkspace?.removeChangeListener(this.capacityWrapper);
     }
-    this.flyoutWorkspace = workspace;
-    this.flyoutWorkspace.targetWorkspace?.addChangeListener(
-      this.capacityWrapper,
-    );
+    this.flyout = flyout;
+    this.flyout.targetWorkspace?.addChangeListener(this.capacityWrapper);
   }
 
   /**
@@ -182,7 +176,7 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
    * @param block The block to update the enabled/disabled state of.
    */
   private updateStateBasedOnCapacity(block: BlockSvg) {
-    const enable = this.flyoutWorkspace?.targetWorkspace?.isCapacityAvailable(
+    const enable = this.flyout?.targetWorkspace?.isCapacityAvailable(
       common.getBlockTypeCounts(block),
     );
     let currentBlock: BlockSvg | null = block;
@@ -209,11 +203,10 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
         'pointerdown',
         block,
         (e: PointerEvent) => {
-          const gesture = this.flyoutWorkspace?.targetWorkspace?.getGesture(e);
-          const flyout = this.flyoutWorkspace?.targetWorkspace?.getFlyout();
-          if (gesture && flyout) {
+          const gesture = this.flyout?.targetWorkspace?.getGesture(e);
+          if (gesture && this.flyout) {
             gesture.setStartBlock(block);
-            gesture.handleFlyoutStart(e, flyout);
+            gesture.handleFlyoutStart(e, this.flyout);
           }
         },
       ),
@@ -221,14 +214,14 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
 
     blockListeners.push(
       browserEvents.bind(block.getSvgRoot(), 'pointerenter', null, () => {
-        if (!this.flyoutWorkspace?.targetWorkspace?.isDragging()) {
+        if (!this.flyout?.targetWorkspace?.isDragging()) {
           block.addSelect();
         }
       }),
     );
     blockListeners.push(
       browserEvents.bind(block.getSvgRoot(), 'pointerleave', null, () => {
-        if (!this.flyoutWorkspace?.targetWorkspace?.isDragging()) {
+        if (!this.flyout?.targetWorkspace?.isDragging()) {
           block.removeSelect();
         }
       }),
@@ -245,7 +238,7 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
    */
   private filterFlyoutBasedOnCapacity(event: AbstractEvent) {
     if (
-      !this.flyoutWorkspace ||
+      !this.flyout ||
       (event &&
         !(
           event.type === EventType.BLOCK_CREATE ||
@@ -254,11 +247,14 @@ export class BlockFlyoutInflater implements IFlyoutInflater {
     )
       return;
 
-    this.flyoutWorkspace.getTopBlocks(false).forEach((block) => {
-      if (!this.permanentlyDisabledBlocks.has(block)) {
-        this.updateStateBasedOnCapacity(block);
-      }
-    });
+    this.flyout
+      .getWorkspace()
+      .getTopBlocks(false)
+      .forEach((block) => {
+        if (!this.permanentlyDisabledBlocks.has(block)) {
+          this.updateStateBasedOnCapacity(block);
+        }
+      });
   }
 
   /**

core/button_flyout_inflater.ts

@@ -6,10 +6,10 @@
 
 import {FlyoutButton} from './flyout_button.js';
 import {FlyoutItem} from './flyout_item.js';
+import type {IFlyout} from './interfaces/i_flyout.js';
 import type {IFlyoutInflater} from './interfaces/i_flyout_inflater.js';
 import * as registry from './registry.js';
 import {ButtonOrLabelInfo} from './utils/toolbox.js';
-import type {WorkspaceSvg} from './workspace_svg.js';
 
 const BUTTON_TYPE = 'button';
 
@@ -21,13 +21,13 @@ export class ButtonFlyoutInflater implements IFlyoutInflater {
    * Inflates a flyout button from the given state and adds it to the flyout.
    *
    * @param state A JSON representation of a flyout button.
-   * @param flyoutWorkspace The workspace to create the button on.
+   * @param flyout The flyout to create the button on.
    * @returns A newly created FlyoutButton.
    */
-  load(state: object, flyoutWorkspace: WorkspaceSvg): FlyoutItem {
+  load(state: object, flyout: IFlyout): FlyoutItem {
     const button = new FlyoutButton(
-      flyoutWorkspace,
-      flyoutWorkspace.targetWorkspace!,
+      flyout.getWorkspace(),
+      flyout.targetWorkspace!,
       state as ButtonOrLabelInfo,
       false,
     );

core/flyout_base.ts

@@ -678,7 +678,7 @@ export abstract class Flyout
       const type = info['kind'].toLowerCase();
       const inflater = this.getInflaterForType(type);
       if (inflater) {
-        contents.push(inflater.load(info, this.getWorkspace()));
+        contents.push(inflater.load(info, this));
         const gap = inflater.gapForItem(info, defaultGap);
         if (gap) {
           contents.push(

core/interfaces/i_flyout_inflater.ts

@@ -1,5 +1,5 @@
 import type {FlyoutItem} from '../flyout_item.js';
-import type {WorkspaceSvg} from '../workspace_svg.js';
+import type {IFlyout} from './i_flyout.js';
 
 export interface IFlyoutInflater {
   /**
@@ -9,14 +9,14 @@ export interface IFlyoutInflater {
    * allow for code reuse.
    *
    * @param state A JSON representation of an element to inflate on the flyout.
-   * @param flyoutWorkspace The flyout's workspace, where the inflated element
+   * @param flyout The flyout on whose workspace the inflated element
    *    should be created. If the inflated element is an `IRenderedElement` it
    *    itself or the inflater should append it to the workspace; the flyout
    *    will not do so itself. The flyout is responsible for positioning the
    *    element, however.
    * @returns The newly inflated flyout element.
    */
-  load(state: object, flyoutWorkspace: WorkspaceSvg): FlyoutItem;
+  load(state: object, flyout: IFlyout): FlyoutItem;
 
   /**
    * Returns the amount of spacing that should follow the element corresponding

core/label_flyout_inflater.ts

@@ -6,11 +6,10 @@
 
 import {FlyoutButton} from './flyout_button.js';
 import {FlyoutItem} from './flyout_item.js';
+import type {IFlyout} from './interfaces/i_flyout.js';
 import type {IFlyoutInflater} from './interfaces/i_flyout_inflater.js';
 import * as registry from './registry.js';
 import {ButtonOrLabelInfo} from './utils/toolbox.js';
-import type {WorkspaceSvg} from './workspace_svg.js';
-
 const LABEL_TYPE = 'label';
 
 /**
@@ -21,13 +20,13 @@ export class LabelFlyoutInflater implements IFlyoutInflater {
    * Inflates a flyout label from the given state and adds it to the flyout.
    *
    * @param state A JSON representation of a flyout label.
-   * @param flyoutWorkspace The workspace to create the label on.
+   * @param flyout The flyout to create the label on.
    * @returns A FlyoutButton configured as a label.
    */
-  load(state: object, flyoutWorkspace: WorkspaceSvg): FlyoutItem {
+  load(state: object, flyout: IFlyout): FlyoutItem {
     const label = new FlyoutButton(
-      flyoutWorkspace,
-      flyoutWorkspace.targetWorkspace!,
+      flyout.getWorkspace(),
+      flyout.targetWorkspace!,
       state as ButtonOrLabelInfo,
       true,
     );

core/separator_flyout_inflater.ts

@@ -6,10 +6,10 @@
 
 import {FlyoutItem} from './flyout_item.js';
 import {FlyoutSeparator, SeparatorAxis} from './flyout_separator.js';
+import type {IFlyout} from './interfaces/i_flyout.js';
 import type {IFlyoutInflater} from './interfaces/i_flyout_inflater.js';
 import * as registry from './registry.js';
 import type {SeparatorInfo} from './utils/toolbox.js';
-import type {WorkspaceSvg} from './workspace_svg.js';
 
 /**
  * @internal
@@ -35,12 +35,11 @@ export class SeparatorFlyoutInflater implements IFlyoutInflater {
    * returned by gapForElement, which knows the default gap, unlike this method.
    *
    * @param _state A JSON representation of a flyout separator.
-   * @param flyoutWorkspace The workspace the separator belongs to.
+   * @param flyout The flyout to create the separator for.
    * @returns A newly created FlyoutSeparator.
    */
-  load(_state: object, flyoutWorkspace: WorkspaceSvg): FlyoutItem {
-    const flyoutAxis = flyoutWorkspace.targetWorkspace?.getFlyout()
-      ?.horizontalLayout
+  load(_state: object, flyout: IFlyout): FlyoutItem {
+    const flyoutAxis = flyout.horizontalLayout
       ? SeparatorAxis.X
       : SeparatorAxis.Y;
     const separator = new FlyoutSeparator(0, flyoutAxis);