* Add support for a custom class to modal wrapper
As per https://github.com/Jermolene/TiddlyWiki5/issues/4485 add support for a custom class to modal wrapper, by means of a field in the modal tiddler. The class is added to the modal wrapper in addition to the default class, allowing for custom styling via css of any part of the modal.
* Remove redundant check for tiddler.
* Make modals display in source Window
this makes modals display within the window where they got opened, with the parameter `rootwindow` that, if `yes` or `true`, shows the modal always in the root TW window (`<$action-sendmessage $message="tm-modal" $param="mymodal" rootwindow="yes|true"/>`)
* pass the full event to $tw.modal.display
we need the event there to find `srcDocument` and `srcWindow`
* pass event in options object
* update modal.js to use options.event
* add docs for rootwindow tm-modal attribute
This may cause backwards compatibility problems for people relying on
the block mode parsing, but it’s much better for the rest of us as it
avoids an unsightly paragraph tag
@felixhayashi I’m afraid I haven’t used your pull request as there were
a few details that I wanted to do differently. The main change is that
these changes allow both a param string and hashmap to be specified.
There are still some warnings about making functions in a loop, but
I’ll fix those as a separate pull request because the fixes are more
than typographic errors.
Previously any refreshing of the content of a modal would cause a
crash. The problem is the way that we steal the root widget for the
render trees used in the modal. The root widget is tied to the
container DOM node for the main content area, which isn’t actually a
parent of the modal DOM nodes, hence the confusion for the refresh
mechanism.
We were parsing the boot tiddlers, making them into a widget and then
refreshing the widget tree. The problem is that subsequent chances to
the boot tiddlers themselves wouldn’t be picked up as part of the
refresh.
Now we indirectly parse those UI boot tiddlers through a transclusion,
which does get refreshed in the desired way.
Get rid of the separate renderContext stack and instead have a parent
pointer on renderer nodes. This lets us walk back up the render tree to
resolve context references
