44 lines
838 B
JavaScript
44 lines
838 B
JavaScript
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var Backbone = require('backbone');
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var UndoManager = require('builder/data/undo-manager.js');
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var _ = require('underscore');
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/**
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* CartoCSS Undo-redo model
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*/
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module.exports = Backbone.Model.extend({
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defaults: {
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content: ''
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},
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initialize: function (attrs, opts) {
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this._history = this._generateHistory(opts && opts.history);
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UndoManager.init(this, {
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track: true,
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history: this._history
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});
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},
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_generateHistory: function (history) {
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if (history && history.length) {
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var data = _.reduce(history, function (memo, cartocss) {
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memo.push({
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content: cartocss
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});
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return memo;
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}, [], this);
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return data;
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}
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return false;
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},
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getHistory: function () {
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return _.pluck(
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this.getUndoHistory(),
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'content'
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);
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}
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});
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