127 lines
3.7 KiB
JavaScript
127 lines
3.7 KiB
JavaScript
(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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var HistoryBuffer;
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HistoryBuffer = (function() {
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function HistoryBuffer(user_id) {
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this.user_id = user_id;
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this.operation_counter = {};
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this.buffer = {};
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this.change_listeners = [];
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}
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HistoryBuffer.prototype.getUserId = function() {
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return this.user_id;
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};
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HistoryBuffer.prototype.getReservedUniqueIdentifier = function() {
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return {
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creator: '_',
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op_number: '_'
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};
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};
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HistoryBuffer.prototype.getOperationCounter = function() {
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var ctn, res, user, _ref;
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res = {};
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_ref = this.operation_counter;
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for (user in _ref) {
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ctn = _ref[user];
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res[user] = ctn;
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}
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return res;
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};
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HistoryBuffer.prototype._encode = function(state_vector) {
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var json, o, o_json, o_next, o_number, o_prev, u_name, unknown, user, _ref;
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if (state_vector == null) {
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state_vector = {};
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}
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json = [];
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unknown = function(user, o_number) {
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if ((user == null) || (o_number == null)) {
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throw new Error("dah!");
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}
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return (state_vector[user] == null) || state_vector[user] <= o_number;
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};
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_ref = this.buffer;
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for (u_name in _ref) {
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user = _ref[u_name];
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for (o_number in user) {
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o = user[o_number];
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if ((!isNaN(parseInt(o_number))) && unknown(u_name, o_number)) {
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o_json = o._encode();
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if (o.next_cl != null) {
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o_next = o.next_cl;
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while ((o_next.next_cl != null) && unknown(o_next.creator, o_next.op_number)) {
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o_next = o_next.next_cl;
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}
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o_json.next = o_next.getUid();
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} else if (o.prev_cl != null) {
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o_prev = o.prev_cl;
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while ((o_prev.prev_cl != null) && unknown(o_next.creator, o_next.op_number)) {
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o_prev = o_prev.prev_cl;
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}
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o_json.prev = o_prev.getUid();
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}
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json.push(o_json);
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}
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}
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}
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return json;
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};
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HistoryBuffer.prototype.getNextOperationIdentifier = function(user_id) {
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var uid;
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if (user_id == null) {
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user_id = this.user_id;
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}
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if (this.operation_counter[user_id] == null) {
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this.operation_counter[user_id] = 0;
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}
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uid = {
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'creator': user_id,
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'op_number': this.operation_counter[user_id]
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};
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this.operation_counter[user_id]++;
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return uid;
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};
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HistoryBuffer.prototype.getOperation = function(uid) {
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var _ref;
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if (uid instanceof Object) {
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return (_ref = this.buffer[uid.creator]) != null ? _ref[uid.op_number] : void 0;
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} else if (uid == null) {
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} else {
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throw new Error("This type of uid is not defined!");
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}
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};
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HistoryBuffer.prototype.addOperation = function(o) {
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if (this.buffer[o.creator] == null) {
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this.buffer[o.creator] = {};
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}
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if (this.buffer[o.creator][o.op_number] != null) {
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throw new Error("You must not overwrite operations!");
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}
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this.buffer[o.creator][o.op_number] = o;
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return o;
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};
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HistoryBuffer.prototype.addToCounter = function(o) {
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if (this.operation_counter[o.creator] == null) {
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this.operation_counter[o.creator] = 0;
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}
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if (typeof o.op_number === 'number' && o.creator !== this.getUserId()) {
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return this.operation_counter[o.creator]++;
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}
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};
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return HistoryBuffer;
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})();
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module.exports = HistoryBuffer;
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},{}]},{},[1]) |