fix(cdk/drag-drop): element not draggable when has initial transform … - #22458
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| describe('mouse dragging when initial transform is none', () => { | ||
| it('should drag an element freely to a particular position', fakeAsync(() => { |
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I think that we only really need this test, the rest can be removed.
| // 'none' is valid css transform value but none + translate3d(x, y, z) is invalid. | ||
| // Note that we apply our own transform before the user's, because things like | ||
| // rotation can affect which direction the element will be translated towards. | ||
| this._rootElement.style.transform = this._initialTransform |
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Rather than checking here, it might be easier to check inside _applyRootElementTransform before saving the value to _initialTransform. That way we don't have to account for it again if we add any new places that read from _initialTransform.
| </div> | ||
| ` | ||
| }) | ||
| class StandaloneDraggableWithInitialTransformNone { |
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Rather than creating a new fixture, you should be able to reuse the StandaloneDraggable and adjust the test. E.g. something like:
const fixture = createComponent(StandaloneDraggable);
fixture.detectChanges();
const dragElement = fixture.componentInstance.dragElement.nativeElement;
dragElement.style.transform = 'none';
dragElementViaMouse(fixture, dragElement, 50, 100);
expect(dragElement.style.transform).toBe('translate3d(50px, 100px, 0px)');
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existing cdkDrag will concat current transform value with what's calculated by cdkDrag.
cdkDrag broken when initial transform value is none because
transform: noneis valid css buttransform: none translate3d(x, y, x)is not.i've added test cases to test cdkDrag that has initial
transform: nonevalue