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/**
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import("jsutils.cmp");
import("stringutils");
import("etherpad.utils.*");
jimport("java.lang.System.out.println");
/* revisionList is an array of revisionInfo structures.
*
* Each revisionInfo structure looks like:
*
* {
* timestamp: a number unix timestamp
* label: string
* savedBy: string of author name
* savedById: string id of the author
* revNum: revision number in the edit history
* id: the view id of the (formerly the id of the StorableObject)
* }
*/
/* returns array */
function _getRevisionsArray(pad) {
var dataRoot = pad.getDataRoot();
if (!dataRoot.savedRevisions) {
dataRoot.savedRevisions = [];
}
dataRoot.savedRevisions.sort(function(a,b) {
return cmp(b.timestamp, a.timestamp);
});
return dataRoot.savedRevisions;
}
function _getPadRevisionById(pad, savedRevId) {
var revs = _getRevisionsArray(pad);
var rev;
for(var i=0;i<revs.length;i++) {
if (revs[i].id == savedRevId) {
rev = revs[i];
break;
}
}
return rev || null;
}
/*----------------------------------------------------------------*/
/* public functions */
/*----------------------------------------------------------------*/
function getRevisionList(pad) {
return _getRevisionsArray(pad);
}
function saveNewRevision(pad, savedBy, savedById, revisionNumber, optIP, optTimestamp, optId) {
var revArray = _getRevisionsArray(pad);
var rev = {
timestamp: (optTimestamp || (+(new Date))),
label: null,
savedBy: savedBy,
savedById: savedById,
revNum: revisionNumber,
ip: (optIP || request.clientAddr),
id: (optId || stringutils.randomString(10)) // *probably* unique
};
revArray.push(rev);
rev.label = "Revision "+revArray.length;
return rev;
}
function setLabel(pad, savedRevId, userId, newLabel) {
var rev = _getPadRevisionById(pad, savedRevId);
if (!rev) {
throw new Error("revision does not exist: "+savedRevId);
}
/*if (rev.savedById != userId) {
throw new Error("cannot label someone else's revision.");
}
if (((+new Date) - rev.timestamp) > (24*60*60*1000)) {
throw new Error("revision is too old to label: "+savedRevId);
}*/
rev.label = newLabel;
}
function getStoredRevision(pad, savedRevId) {
return _getPadRevisionById(pad, savedRevId);
}
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