The Undo Plugin
The Undo plugin replaces native browser undo/redo functionality.
1 Usage
The Undo Plugin allows you to undo changes to an editable by pressing Ctrl+Z
(or Cmd+Z
on Mac). You may also reapply changes made undone by pressing Ctrl+Shift+Z
or Cmd+Shift+Z
on Mac. The Undo Plugin has no UI and no components.
2 Configuration
This plugin does not provide any configuration settings itself.
However, the Undo plugin relies on the aloha-smart-content-changed
event for creating undo snapshots. All undo and redo actions will jump from one undo snapshot to another.
The aloha-smart-content-changed
fires after content changes. The event doesn’t fire immediately, but only if the content didn’t change again for a certain amount of time. By default the timeout is 5 seconds (the idle
setting). If the user types a character that is in the list configured by the delimiters
settings, the timeout is drastically shortened to half a second (the delay
setting).
The timeouts and delimiters can be configured as follows (timeouts are in milliseconds):
Aloha.settings.smartContentChange = { delimiters: [ ':', ';', '.', '!', '?', ',', unescape( '%u0009' ), unescape( '%u0020' ), 'Enter' ], idle: 5000, delay: 500 };