pangratz/ember-memento

Undo / Redo functionality for Ember.Object's

ember-memento's Issues

Allow changes to mementoProperties

Re-add listener to array when it's changed

Currently, when an array property is replaced, its changes are not tracked anymore since the observer was attached to the replaced array:

var obj = Ember.Object(Ember.Memento, {
    mementoProperties: 'myArray'.w(),
    myArray: []
});
obj.set('myArray', [1,2,3]); // not tracked for Undo/Redo
obj.get('myArray').pushObject(4); // not tracked for Undo/Redo

To fix this, the old listener must be removed when an array is about to be replaced and a new listener has to be added when the array is set.

Property which indicates number of steps which can be undone and redone

Add properties undoCount and redoCount which indicates how many undo's and redo's can be made.

Gruntify

Using https://github.com/pangratz/grunt-init-emberjs-library

Add reset method which removes history

Remove either the whole history or specify parameter how many history items shall be kept.

Upload mixin in development and minified version

Add rake task to upload the mixin as development and minified version to GitHub downloads.

Add boolean property `canUndo` and `canRedo`

These are simple computed properties which observe the length of undoCount and redoCount as defined in #5.

Using updateProperties on object properties

Would it be possible to implement another method (or extend this one) to merge properties that are object fields without replacing the whole object? e.g.

Editor.Element = Em.Object.extend(Editor.Memento, {
    style: {
        'border-style': 'none',
        width: '200px',
        height: '40px'
    }
});
var el = Editor.Element.create();
el.updateProperties({style: {'width':'300px','height':'200px'}}); //this should replace width and height only and leave border-style unchanged, but would push a new state into the history

Limit amount of history items

Create a property which allows to limit the amount of history/memento items.

Add updateProperties method

This method allows the modification of multiple properties like Ember.setProperties but all changes are available as one history item and not one history item per changed property.

ember data integration

Hi,
Is there a way to integrate it with ember data?

Thanks