This allows the label collision boxes for the vertices to update
during these modes. Otherwise the labels.js `isInterestingVertex()`
function doesn't consider them interesting enough to update.
Some highlights
- `getSiblingAndChildVertices` are expensive, so they're saved and called less frequently
- draw touch targets for all the visible vertices
- remove redundant css classes and `setClass` function
This is more work to further isolate the layers that entities draw to.
It makes it easier to debug what is going on, and can eventually lead to
deferred drawing, if each draw function is in its own place and not dependant
on anything else.
I've started to replace the vertex-hover with an explicit layer for touch
targets.
Also had to change a lot of the svg tests, which are really brittle.
Things would happen like - the surface would be created, it would kick of a
deferred redraw, which would notice that the zoom was 0 and call
editOff, which would remove the osm layers that were just created and
that the tests were trying to draw to. These tests need proper zoom and
projection otherwise nothing works.
(re: #4271, #3636)
- better classification of "interesting" vertices
(include tagged, selected, or child of selected)
- now we can draw labels on selected lines again (revert #3636)
because the labels will avoid the vertices
- if debugging is on, draw a collision box for the mouse
(re: #3003 / #4602)
For now, drawHover is commented out. Still not sure what I will do with it.
This means that things flicker a bit when dragging, also connecting nodes
(and closing lines) does not currently work.
There was lot going on preventing the vertices from rendering while dragging.
1. `modeDragNode` needed a proper `selectedIDs()` function that works like other
modes.. Many other places in iD (including the vertex renderer) call `context.selectedIDs()`..
This means that `modeDragNode` needs a new function `restoreSelectedIDs()` to do what
`selectedIDs()` was previously doing (a place to store selectedIDs so that we
can reselect those entities after the user is done dragging a node in select mode)
2. Just so many things in svg/vertices.js
- siblingAndChildVertices was missing some things for points that we render
as vertices (points in wireframe, points with directions)
- the sibling vertices weren't being included in the `filter` function, so
would disappear when doing differenced/extent redraws
- probably some other things
Sometimes people tag all-way stop signs at the junction node,
othertimes people tag all-way stop signs at the stop sign location.
What we're doing here is:
- if `stop=all` tagged at the junction, show viewfield in all directions
- if `stop=all` tagged at the sign location, show viewfield according to `direction=` tag
Previously it was up to the caller to draw whatever they want into the
footer flash. With this change, uiFlash creates an icon and a text, so
the caller doesn't need to do as much work.
