What could happen was:
- user could right click on a line
- this would trigger `disabled()` checks for each operation buttons
- the line was not fully downloaded, so would return `disabled()` 'not_downloaded'
(and also start download of the missing tiles)
- then the tooltip would pop into existence, calling `tooltip()`
- which calls `disabled()` again
- but this time it's fine and the `disabled()` is false
- so you'd see a greyed out button but the tooltip said everyting is ok and
you can click the button anyway
I fixed this by just caching the disabled test. This is probably ok anyway
because these tests can be expensive, and then the user will see a consistent
message like "The line is not yet fully downloaded".
If the user clicks off the line and back onto it, iD will reenter select mode,
rebuild the menu, redo the disabled test, and they will see the button enabled.
(closes#4890)
This lets iD request needed tiles outside of the viewport, for example to
properly straighten lines or validate features that may have unloaded
connections.
This commit includes a bunch of minor things:
- change keyboard shortcut to 'E' to not conflict with anything
- move `disabled` check from operation into action and simplify
- use `actionMoveNode` to place the detached node at the mouse cursor
- disable the operation if the node is connected to hidden features
- lots of code simplification
- make the icon more centered
Trying to eliminate the minimum 10m distance for replacing the original
junction vertex - this is a small threshold. When _not_ replacing this
vertex, the unzorro code will wreck havok on a traffic circle.
(If there is no suitable vertex to use, it will snap to a point between
the nearest vertices, see #4146)
(closes#4237)
New rules:
- Rotation available if at least 2 unique nodes in selectedIDs
- Reflection available if at least 3 unique nodes in selectedIDs
