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fix: shouldPreventMove not being respected #7894

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Merged
BeksOmega merged 2 commits into from
Mar 7, 2024
Merged

fix: shouldPreventMove not being respected #7894

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5175f56
fix: shouldPreventMove not being respected
BeksOmega Feb 28, 2024
9a7ec3a
fix: PR comments
BeksOmega Mar 5, 2024
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56 changes: 46 additions & 10 deletions core/block_dragger.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -71,8 +71,18 @@ export class BlockDragger implements IBlockDragger {

/** Whether the block would be deleted if dropped immediately. */
protected wouldDeleteBlock_ = false;

protected startXY_: Coordinate;

/** The parent block at the start of the drag. */
private startParentConn: RenderedConnection | null = null;

/**
* The child block at the start of the drag. Only gets set if
* `healStack` is true.
*/
private startChildConn: RenderedConnection | null = null;

/**
* @deprecated To be removed in v11. Updating icons is now handled by the
* block's `moveDuringDrag` method.
Expand Down Expand Up @@ -137,6 +147,13 @@ export class BlockDragger implements IBlockDragger {
blockAnimation.disconnectUiStop();

if (this.shouldDisconnect_(healStack)) {
this.startParentConn =
this.draggingBlock_.outputConnection?.targetConnection ??
this.draggingBlock_.previousConnection?.targetConnection;
if (healStack) {
this.startChildConn =
this.draggingBlock_.nextConnection?.targetConnection;
}
this.disconnectBlock_(healStack, currentDragDeltaXY);
}
this.draggingBlock_.setDragging(true);
Expand Down Expand Up @@ -424,17 +441,10 @@ export class BlockDragger implements IBlockDragger {
.getLayerManager()
?.moveOffDragLayer(this.draggingBlock_, layers.BLOCK);
this.draggingBlock_.setDragging(false);
if (delta) {
// !preventMove
if (preventMove) {
this.moveToOriginalPosition();
} else if (delta) {
this.updateBlockAfterMove_();
} else {
// Blocks dragged directly from a flyout may need to be bumped into
// bounds.
bumpObjects.bumpIntoBounds(
this.draggingBlock_.workspace,
this.workspace_.getMetricsManager().getScrollMetrics(true),
this.draggingBlock_,
);
}
}
// Must dispose after `updateBlockAfterMove_` is called to not break the
Expand All @@ -445,6 +455,32 @@ export class BlockDragger implements IBlockDragger {
eventUtils.setGroup(false);
}

/**
* Moves the dragged block back to its original position before the start of
* the drag. Reconnects any parent and child blocks.
*/
private moveToOriginalPosition() {
this.startChildConn?.connect(this.draggingBlock_.nextConnection);
if (this.startParentConn) {
switch (this.startParentConn.type) {
case ConnectionType.INPUT_VALUE:
this.startParentConn.connect(this.draggingBlock_.outputConnection);
break;
case ConnectionType.NEXT_STATEMENT:
this.startParentConn.connect(this.draggingBlock_.previousConnection);
}
} else {
this.draggingBlock_.moveTo(this.startXY_, ['drag']);
// Blocks dragged directly from a flyout may need to be bumped into
// bounds.
bumpObjects.bumpIntoBounds(
this.draggingBlock_.workspace,
this.workspace_.getMetricsManager().getScrollMetrics(true),
this.draggingBlock_,
);
}
}

/**
* Calculates the drag delta and new location values after a block is dragged.
*
Expand Down