The basic idea is that if we don't find a variable `foo` then we fallback to retrieving the value from the tiddler `$:/global/foo`, if it exists.
This allows us to replace the usual importvariables-based mechanism for global definitions, avoiding cluttering up the variable namespace with every macro.
In order to permit subprocedures to be overridden, we also introduce a mechanism for conditional definitions: preceding the word definition|procedure|function|widget with a + causes the definition only to occur if the specified variable doesn't already exist. In the next commit we'll apply this mechanism to the tabs macro
There are two big changes here:
Replace the previous "ts-wrapper" mechanism, which we had been using to redefine custom widgets inside their definitions to prevent recursive calls. Now we've got the genesis widget we can instead control recursion through a new "$remappable" attribute that allows the custom widget mechanism to be skipped.
We also extend the slot widget to allow a depth to be specified; it then reaches up by the indicated number of transclusion widgets to find the one from which it should retrieve the slot value.
* Support direct style attributes on the element widget
* Fix tests
Not all parse tree nodes have an "orderedAttributes" member (eg. the error message generated at 5613bcc884/core/modules/widgets/transclude.js (L73-L75))
* Ensure ordering isn't insertion dependent if orderedAttributes is missing
* Add docs
* Support macro params in filter run prefixes and support substitution for variables set by filter run prefixes
* feat: add support macro parameters and variable substitution for all filter run prefixes
* fix: rename options argument to opts for disambiguation
* feat: add support for macro params to cascade filterrun prefix
* $let widget added and tested
* Documentation for $let, doc improvements for $vars
* let properly avoids refreshing when possible
* $let Changes as recommended by others
* Removed superfluous super method call
Also improved $let test
We were using `String.prototype.replace()` without addressing the
wrinkle that dollar signs in the replacement string have special
handling. This caused problems in situations where the replacement
string is derived from user input and contains dollar signs.
Fixes#2517
This is quite a big change: a new way to invoke action widgets.
The advantage is that it solves #2217 and #1564, a long running problem
that prevented us from adding action widgets to widgets that modify the
store.
This commit adds the new technique for the button and keyboard widgets,
but also extends the select widget to trigger action widgets for the
first time
