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Diffstat (limited to 'docs/form_persisting_architecture.md')
| -rw-r--r-- | docs/form_persisting_architecture.md | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/docs/form_persisting_architecture.md b/docs/form_persisting_architecture.md index 8b5ab495f..9e6cb7c41 100644 --- a/docs/form_persisting_architecture.md +++ b/docs/form_persisting_architecture.md @@ -10,5 +10,26 @@ Since: Whenever this class is loaded, it registers an `onChange` listener. On those events, it checks the target for a special ID attribute it listens for. -Let's say we call our class `PersistentForm`. So then we might check for a `persistent-form-id`. +Let's say we call our class `PersistentForm`. So then we might check for a `persistent-form-id` on change. + +The parent element will define a special attribute, let's say `persistent-form-parent-id`. + +Here's some pseudo-code for it: +``` +onChange(ev) => + persisted = localStorage[parentKey] + persisted[childKey] = ev.value + localStorage[parentKey] = persisted +``` + +On startup, we just do the inverse: + +``` +onStart() => + el = this.getEl() + parentKey = el.attr('persistent-form-parent-id') + children = el.children.where('[persistent-form-id]') + children.each(loadValue) +``` + |