pub fn set_attribute_value(node: i64, name: &str, value: &RuntimeValue)Expand description
Set an attribute from a VALUE rather than from a string — the ONE place the boolean-attribute
rule lives, so no two tiers can render disabled differently.
An HTML boolean attribute’s state is its PRESENCE: disabled="", disabled="disabled" and
disabled="false" all disable the control, and the only way to say ENABLED is to leave the
attribute out. So a Bool in one of those names decides presence and nothing is written when
it is false; every other value is written as it always was, which is what keeps disabled=""
(present, in HTML) and data-done={false} (data, so it keeps its text) both correct.
The rule is keyed on the value’s TYPE, not its truthiness — an empty Text is falsy and
disabled="" is disabled, so a truthiness rule would drop exactly the case HTML keeps.