feat(drag-drop): add the ability to disable dragging

[crisbeto]

Adds inputs to cdkDrag, cdkDropList and cdkDragHandle that allows for dragging to be disabled through those specific elements.

Fixes #13651.

[philmtd]

Just curious: Why is it, that this feature is targeted for the next minor release while other new features are targeted for the next patch? Is this more complex in some way?

[crisbeto]

We have a rule that it’s mostly bug fixes that go into patch releases, whereas features go into minor.

[jelbourn]

LGTM

[100cm]

hey, when will this pr be merged..

[jelbourn]

@crisbeto passes presubmit, just needs rebase

[ngbot]

Hi @crisbeto! This PR has merge conflicts due to recent upstream merges.
Please help to unblock it by resolving these conflicts. Thanks!

[crisbeto]

Rebased.

[100cm]

any update?

[ghost]

Drag can be disabled using cdkDragDisabled property. How do i disable drop ? I wish there were a cdkDropDisabled property too. Though cdkDragDisabled is introduced in 7.1.0. expecting more option soon.

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}