mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-22 14:41:29 +01:00
932 lines
27 KiB
JavaScript
932 lines
27 KiB
JavaScript
/**
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* eGroupWare eTemplate2
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Andreas Stöckel
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* @copyright Stylite 2012
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* @version $Id$
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*/
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/*egw:uses
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egw_core;
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egw_debug;
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*/
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"use strict";
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egw.extend("data", egw.MODULE_APP_LOCAL, function (_app, _wnd) {
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/**
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* How many UIDs we'll tell the server we know about. No need to pass the whole list around.
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*/
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var KNOWN_UID_LIMIT = 200;
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/**
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* Cache lifetime
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*
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* If cached results are used, we check their timestamp. If the timestamp
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* is older than this, we will also ask for fresh data. For cached data
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* younger than this, we only return the cache
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*
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* 29 seconds, 1 less then the fastest nextmatch autorefresh option
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*/
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var CACHE_LIFETIME = 29; // seconds
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/**
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* Cached fetches are differentiated from actual results by using this prefix
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* @type String
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*/
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var CACHE_KEY_PREFIX = 'cached_fetch_';
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var lastModification = null;
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/**
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* cacheCallback stores callbacks that determine if data is placed
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* into cacheStorage, or simply kept temporarily. It is indexed
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* by prefix.
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*
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* @type Array
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*/
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var cacheCallback = {};
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/**
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* The uid function generates a session-unique id for the current
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* application by appending the application name to the given uid.
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*
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* @param {string} _uid
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* @param {string} _prefix
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*/
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function UID(_uid, _prefix)
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{
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_prefix = _prefix ? _prefix : _app;
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return _prefix + "::" + _uid;
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}
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/**
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* Looks like too much data is cached. Forget some.
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*
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* Tries to free up localStorage by removing the oldest cached data for the
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* given prefix, but if none is found it will look at all cached data.
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*
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* @param {string} _prefix UID / application prefix
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* @returns {Number} Number of cached recordsets removed, normally 1.
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*/
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function _clearCache(_prefix)
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{
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// Find cached items for the prefix, we prefer to expire just within the app
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var indexes = [];
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for(var i = 0; i < window.localStorage.length; i++)
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{
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var key = window.localStorage.key(i);
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// This is a cached fetch for many rows
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if(key.indexOf(CACHE_KEY_PREFIX+_prefix) == 0)
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{
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var cached = JSON.parse(window.localStorage.getItem(key));
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if(cached.lastModification)
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{
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indexes.push({
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key: key,
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lastModification: cached.lastModification
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});
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}
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else
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{
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// No way to know how old it is, just remove it
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window.localStorage.removeItem(key);
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}
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}
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// Actual cached data
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else if (key.indexOf(_prefix) == 0)
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{
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var cached = JSON.parse(window.localStorage.getItem(key));
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if(cached.timestamp)
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{
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indexes.push({
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key: key,
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lastModification: cached.timestamp
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});
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}
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else
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{
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// No way to know how old it is, just remove it
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window.localStorage.removeItem(key);
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}
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}
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}
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// Nothing for that prefix? Clear all cached data.
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if(_prefix && indexes.length == 0)
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{
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return _clearCache('');
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}
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// Found some cached for that prefix, only remove the oldest
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else if (indexes.length > 0)
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{
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indexes.sort(function(a,b) {
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if(a.lastModification < b.lastModification) return 1;
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if(a.lastModification > b.lastModification) return -1;
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return 0;
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});
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window.localStorage.removeItem(indexes.pop().key);
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return 1;
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}
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return indexes.length;
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}
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function parseServerResponse(_result, _callback, _context, _execId, _widgetId)
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{
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// Check whether the result is valid
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// This result is not for us, quietly return
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if(_result && typeof _result.type != 'undefined') return;
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// "result" has to be an object consting of "order" and "data"
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if (!(_result && typeof _result.order !== "undefined"
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&& typeof _result.data !== "undefined"))
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{
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egw.debug("error", "Invalid result for 'dataFetch'");
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}
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if (_result.lastModification)
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{
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lastModification = _result.lastModification;
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}
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if (_result.order && _result.data)
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{
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// Assemble the correct order uids
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if(!(_result.order.length && _result.order[0] && _result.order[0].indexOf && _result.order[0].indexOf(_context.prefix) == 0))
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{
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for (var i = 0; i < _result.order.length; i++)
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{
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_result.order[i] = UID(_result.order[i], _context.prefix);
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}
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}
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// Load all data entries that have been sent or delete them
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for (var key in _result.data)
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{
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var uid = UID(key, (typeof _context == "object" && _context != null) ?_context.prefix : "");
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if (_result.data[key] === null &&
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(
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typeof _context.refresh == "undefined" || _context.refresh && !jQuery.inArray(key,_context.refresh)
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))
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{
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egw.dataDeleteUID(uid);
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}
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else
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{
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egw.dataStoreUID(uid, _result.data[key]);
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}
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}
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// Tried to refresh a specific row and got nothing, so set it to null
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// (triggers update for listeners), then remove it
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if(_result.order.length == 0 && typeof _context == "object" && _context.refresh)
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{
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for(var i = 0; i < _context.refresh.length; i++)
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{
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var uid = UID(_context.refresh[i], _context.prefix);
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egw.dataStoreUID(uid, null);
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egw.dataDeleteUID(uid);
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}
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}
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// Check to see if we need long-term caching of the query and its results
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if(window.localStorage && _context.prefix && cacheCallback[_context.prefix] && !_context.no_cache)
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{
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// Ask registered callbacks if we should cache this
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for(var i = 0; i < cacheCallback[_context.prefix].length; i++)
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{
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var cc = cacheCallback[_context.prefix][i];
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var cache_key = cc.callback.call(cc.context, _context);
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if(cache_key)
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{
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cache_key = CACHE_KEY_PREFIX + _context.prefix + '::' + cache_key;
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try
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{
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for (var key in _result.data)
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{
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var uid = UID(key, (typeof _context == "object" && _context != null) ? _context.prefix : "");
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// Register a handler on each data so we can know if it is updated or removed
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egw.dataUnregisterUID(uid, null, cache_key);
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egw.dataRegisterUID(uid, function(data, _uid) {
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// If data item is removed, remove it from cached fetch too
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if(data == null)
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{
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var cached = JSON.parse(window.localStorage[this]) || false;
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if(cached && cached.order && cached.order.indexOf(_uid) >= 0)
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{
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cached.order.splice(cached.order.indexOf(_uid),1);
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if(cached.total) cached.total--;
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window.localStorage[this] = JSON.stringify(cached);
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}
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window.localStorage.removeItem(_uid);
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}
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else
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{
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// Update or store data in long-term storage
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window.localStorage[_uid] = JSON.stringify({timestamp: (new Date).getTime(), data: data});
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}
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}, cache_key, _execId, _widgetId);
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}
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// Don't keep data in long-term cache with request also
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_result.data = {};
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window.localStorage.setItem(cache_key,JSON.stringify(_result));
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}
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catch (e)
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{
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// Maybe ran out of space? Free some up.
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if(e.name == 'QuotaExceededError' // storage quota is exceeded, remove cached data
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|| e.name == 'NS_ERROR_DOM_QUOTA_REACHED') // FF-name
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{
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var count = _clearCache(_context.prefix);
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egw.debug('info', 'localStorage full, removed ' + count + ' stored datasets');
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}
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// No, something worse happened
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else
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{
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egw.debug('warning', 'Tried to cache some data. It did not work.', cache_key, e);
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}
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}
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}
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}
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}
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// Call the callback function and pass the calculated "order" array
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// as well as the "total" count and the "timestamp" to the listener.
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if (_callback)
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{
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_callback.call(_context, {
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"order": _result.order,
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"total": parseInt(_result.total),
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"readonlys": _result.readonlys,
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"rows": _result.rows,
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"lastModification": lastModification
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});
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}
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}
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}
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return {
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/**
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* The dataFetch function provides an abstraction layer for the
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* corresponding "etemplate_widget_nextmatch::ajax_get_rows" function.
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* The server returns the following structure:
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* {
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* order: [uid, ...],
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* data:
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* {
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* uid0: data,
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* ...
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* uidN: data
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* },
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* total: <TOTAL COUNT>,
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* lastModification: <LAST MODIFICATION TIMESTAMP>,
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* readonlys: <READONLYS>
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* }
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* If a uid got deleted on the server above data is null.
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* If a uid is omitted from data, is has not changed since lastModification.
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*
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* If order/data is null, this means that nothing has changed for the
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* given range.
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* The dataFetch function stores new data for the uid's inside the
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* local data storage, the grid views are then capable of querying the
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* data for those uids from the local storage using the
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* "dataRegisterUID" function.
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*
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* @param _execId is the execution context of the etemplate instance
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* you're querying the data for.
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* @param _queriedRange is an object of the following form:
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* {
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* start: <START INDEX>,
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* num_rows: <COUNT OF ENTRIES>
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* }
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* The range always corresponds to the given filter settings.
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* @param _filters contains the filter settings. The filter settings are
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* those which are crucial for the mapping between index and uid.
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* @param _widgetId id with full namespace of widget
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* @param _callback is the function that should get called, once the data
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* is available. The data passed to the callback function has the
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* following form:
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* {
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* order: [uid, ...],
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* total: <TOTAL COUNT>,
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* lastModification: <LAST MODIFICATION TIMESTAMP>,
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* readonlys: <READONLYS>
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* }
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* Please note that the "uids" comming from the server and the ones
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* being parsed to the callback function differ. While the uids
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* which are returned from the server are only unique inside the
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* application, the uids which are used on the client are "globally"
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* unique.
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* @param _context is the context in which the callback function will get
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* called.
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* @param _knownUids is an array of uids already known to the client.
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* This parameter may be null in order to indicate that the client
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* currently has no data for the given filter settings.
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*/
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dataFetch: function (_execId, _queriedRange, _filters, _widgetId,
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_callback, _context, _knownUids)
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{
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var lm = lastModification;
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if(typeof _context.lastModification != "undefined") lm = _context.lastModification;
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if (_queriedRange["no_data"])
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{
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lm = 0xFFFFFFFFFFFF;
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}
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else if (_queriedRange["only_data"])
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{
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lm = 0;
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}
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// Store refresh in context to not delete the other entries when server only returns these
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if (typeof _queriedRange.refresh != "undefined")
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{
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if(typeof _queriedRange.refresh == "string")
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{
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_context.refresh = [_queriedRange.refresh];
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}
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else
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{
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_context.refresh = _queriedRange.refresh;
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}
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}
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// Limit the amount of UIDs we say we know about to a sensible number, in case user is enjoying auto-pagination
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var knownUids = _knownUids ? _knownUids : egw.dataKnownUIDs(_context.prefix ? _context.prefix : _app);
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if(knownUids > KNOWN_UID_LIMIT)
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{
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knownUids.slice(typeof _queriedRange.start != "undefined" ? _queriedRange.start:0,KNOWN_UID_LIMIT);
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}
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// Check to see if we have long-term caching of the query and its results
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if(window.localStorage && _context.prefix && cacheCallback[_context.prefix])
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{
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// Ask registered callbacks if we should cache this
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for(var i = 0; i < cacheCallback[_context.prefix].length; i++)
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{
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var cc = cacheCallback[_context.prefix][i];
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var cache_key = cc.callback.call(cc.context, _context);
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if(cache_key)
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{
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cache_key = CACHE_KEY_PREFIX + _context.prefix + '::' + cache_key;
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var cached = window.localStorage.getItem(cache_key);
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if(cached)
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{
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cached = JSON.parse(cached);
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var needs_update = true;
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// Check timestamp
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if(cached.lastModification && ((Date.now()/1000) - cached.lastModification) < CACHE_LIFETIME)
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{
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needs_update = false;
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}
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egw.debug('log', 'Data cached query from ' + new Date(cached.lastModification*1000)+': ' + cache_key + '('+
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(needs_update ? 'will be' : 'will not be')+" updated)\nprocessing...");
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// Call right away with cached data, but set no_cache flag
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// to avoid re-caching this data with a new timestamp.
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// We may still ask the server though.
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var no_cache = _context.no_cache;
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_context.no_cache = true;
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parseServerResponse(cached, _callback, _context, _execId, _widgetId);
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_context.no_cache = no_cache;
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// If cache registrant wants notification of cache useage,
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// let it know
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if(cc.notification)
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{
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cc.notification.call(cc.context, needs_update);
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}
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if(!needs_update)
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{
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// Cached data is new enough, skip the server call
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return;
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}
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}
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}
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}
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}
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// create a clone of filters, which can be used in parseServerResponse and cache callbacks
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// independent of changes happening while waiting for the response
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_context.filters = jQuery.extend({}, _filters);
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var request = egw.json(
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_app+".etemplate_widget_nextmatch.ajax_get_rows.etemplate",
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[
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_execId,
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_queriedRange,
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_filters,
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_widgetId,
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knownUids,
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lm
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],
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function(result) {
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parseServerResponse(result, _callback, _context, _execId, _widgetId);
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},
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this,
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true
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);
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request.sendRequest();
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},
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/**
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* Turn on long-term client side cache of a particular request
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* (cache the nextmatch query results) for fast, immediate response
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* with old data.
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*
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* The request is still sent to the server, and the cache is updated
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* with fresh data, and any needed callbacks are called again with
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* the fresh data.
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*
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* @param {string} prefix UID / Application prefix should match the
|
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* individual record prefix
|
|
* @param {function} callback_function A function that will analize the provided fetch
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|
* parameters and return a reproducable cache key, or false to not cache
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* the request.
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|
* @param {function} notice_function A function that will be called whenever
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* cached data is used. It is passed one parameter, a boolean that indicates
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* if the server is or will be queried to refresh the cache. Do not fetch additional data
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* inside this callback, and return quickly.
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* @param {object} context Context for callback function.
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*/
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dataCacheRegister: function(prefix, callback_function, notice_function, context)
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{
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if(typeof cacheCallback[prefix] == 'undefined')
|
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{
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cacheCallback[prefix] = [];
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}
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|
cacheCallback[prefix].push({
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callback: callback_function,
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notification: notice_function || false,
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context: context || null
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});
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},
|
|
|
|
/**
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|
* Unregister a previously registered cache callback
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|
* @param {string} prefix UID / Application prefix should match the
|
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* individual record prefix
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* @param {function} [callback] Callback function to un-register. If
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* omitted, all functions for the prefix will be removed.
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|
*/
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dataCacheUnregister: function(prefix, callback)
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{
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if(typeof callback != 'undefined')
|
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{
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for(var i = 0; i < cacheCallback[prefix].length; i++)
|
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{
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if(cacheCallback[prefix][i].callback == callback)
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{
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cacheCallback[prefix].splice(i,1);
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return;
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}
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}
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}
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// Callback not provided or not found, reset by prefix
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cacheCallback[prefix] = [];
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}
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};
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|
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});
|
|
|
|
egw.extend("data_storage", egw.MODULE_GLOBAL, function (_app, _wnd) {
|
|
|
|
/**
|
|
* The localStorage object is used to store the data for certain uids. An
|
|
* entry inside the localStorage object looks like the following:
|
|
* {
|
|
* timestamp: <CREATION TIMESTAMP (local)>,
|
|
* data: <DATA>
|
|
* }
|
|
*/
|
|
var localStorage = {};
|
|
|
|
/**
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|
* The registeredCallbacks map is used to store all callbacks registerd for
|
|
* a certain uid.
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|
*/
|
|
var registeredCallbacks = {};
|
|
|
|
/**
|
|
* Uids and timers used for querying data uids, hashed by the first few
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|
* bytes of the _execId, stored as an object of the form
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* {
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|
* "timer": <QUEUE TIMER>,
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|
* "uids": <ARRAY OF UIDS>
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|
* }
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|
*/
|
|
var queue = {};
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/**
|
|
* Contains the queue timeout in milliseconds.
|
|
*/
|
|
var QUEUE_TIMEOUT = 10;
|
|
|
|
/**
|
|
* This constant specifies the maximum age of entries in the local storrage
|
|
* in milliseconds
|
|
*/
|
|
var MAX_AGE = 5 * 60 * 1000; // 5 mins
|
|
|
|
/**
|
|
* This constant specifies the interval in which the local storage gets
|
|
* cleaned up.
|
|
*/
|
|
var CLEANUP_INTERVAL = 30 * 1000; // 30 sec
|
|
|
|
/**
|
|
* Register a cleanup function, which throws away all data entries which are
|
|
* older than the given age.
|
|
*/
|
|
_wnd.setInterval(function() {
|
|
// Get the current timestamp
|
|
var time = (new Date).getTime();
|
|
|
|
// Iterate over the local storage
|
|
for (var uid in localStorage)
|
|
{
|
|
// Expire old data, if there are no callbacks
|
|
if (time - localStorage[uid].timestamp > MAX_AGE && typeof registeredCallbacks[uid] == "undefined")
|
|
{
|
|
// Unregister all registered callbacks for that uid
|
|
egw.dataUnregisterUID(uid);
|
|
|
|
// Delete the data from the localStorage
|
|
delete localStorage[uid];
|
|
|
|
// We don't clean long-term storage because of age until it runs
|
|
// out of space
|
|
}
|
|
}
|
|
}, CLEANUP_INTERVAL);
|
|
|
|
return {
|
|
|
|
/**
|
|
* Registers the intrest in a certain uid for a callback function. If
|
|
* the data for that uid changes or gets loaded, the given callback
|
|
* function is called. If the data for the given uid is available at the
|
|
* time of registering the callback, the callback is called immediately.
|
|
*
|
|
* @param _uid is the uid for which the callback should be registered.
|
|
* @param _callback is the callback which should get called.
|
|
* @param _context is the optional context in which the callback will be
|
|
* executed
|
|
* @param _execId is the exec id which will be used in case the data is
|
|
* not available
|
|
* @param _widgetId is the widget id which will be used in case the uid
|
|
* has to be fetched.
|
|
*/
|
|
dataRegisterUID: function (_uid, _callback, _context, _execId, _widgetId) {
|
|
// Create the slot for the uid if it does not exist now
|
|
if (typeof registeredCallbacks[_uid] === "undefined")
|
|
{
|
|
registeredCallbacks[_uid] = [];
|
|
}
|
|
|
|
// Store the given callback
|
|
registeredCallbacks[_uid].push({
|
|
"callback": _callback,
|
|
"context": _context ? _context : null,
|
|
"execId": _execId,
|
|
"widgetId" : _widgetId
|
|
});
|
|
|
|
// Check whether the data is available -- if yes, immediately call
|
|
// back the callback function
|
|
if (typeof localStorage[_uid] !== "undefined")
|
|
{
|
|
// Update the timestamp and call the given callback function
|
|
localStorage[_uid].timestamp = (new Date).getTime();
|
|
_callback.call(_context, localStorage[_uid].data, _uid);
|
|
}
|
|
// Check long-term storage
|
|
else if(window.localStorage && window.localStorage[_uid])
|
|
{
|
|
localStorage[_uid] = JSON.parse(window.localStorage[_uid]);
|
|
_callback.call(_context, localStorage[_uid].data, _uid);
|
|
}
|
|
else if (_execId && _widgetId)
|
|
{
|
|
// Get the first 50 bytes of the exex id
|
|
var hash = _execId.substring(0, 50);
|
|
|
|
// Create a new queue if it does not exist yet
|
|
if (typeof queue[hash] === "undefined")
|
|
{
|
|
var self = this;
|
|
queue[hash] = { "uids": [], "timer": null };
|
|
queue[hash].timer = window.setTimeout(function () {
|
|
// Fetch the data
|
|
self.dataFetch(_execId, {"start": 0, "num_rows": 0, "only_data": true, "refresh": queue[hash].uids},
|
|
[], _widgetId, null, _context, null);
|
|
|
|
// Delete the queue entry
|
|
delete queue[hash];
|
|
}, 100);
|
|
}
|
|
|
|
// Push the uid onto the queue, removing the prefix
|
|
var parts = _uid.split("::");
|
|
parts.shift();
|
|
queue[hash].uids.push(parts.join('::'));
|
|
}
|
|
else
|
|
{
|
|
this.debug("log", "Data for uid " + _uid + " not available.");
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Unregisters the intrest of updates for a certain data uid.
|
|
*
|
|
* @param _uid is the data uid for which the callbacks should be
|
|
* unregistered.
|
|
* @param _callback specifies the specific callback that should be
|
|
* unregistered. If it evaluates to false, all callbacks (or those
|
|
* matching the optionally given context) are removed.
|
|
* @param _context specifies the callback context that should be
|
|
* unregistered. If it evaluates to false, all callbacks (or those
|
|
* matching the optionally given callback function) are removed.
|
|
*/
|
|
dataUnregisterUID: function (_uid, _callback, _context) {
|
|
|
|
// Force the optional parameters to be exactly null
|
|
_callback = _callback ? _callback : null;
|
|
_context = _context ? _context : null;
|
|
|
|
if (typeof registeredCallbacks[_uid] !== "undefined")
|
|
{
|
|
|
|
// Iterate over the registered callbacks for that uid and delete
|
|
// all callbacks pointing to the given callback and context
|
|
for (var i = registeredCallbacks[_uid].length - 1; i >= 0; i--)
|
|
{
|
|
if ((!_callback || registeredCallbacks[_uid][i].callback === _callback)
|
|
&& (!_context || registeredCallbacks[_uid][i].context === _context))
|
|
{
|
|
registeredCallbacks[_uid].splice(i, 1);
|
|
}
|
|
}
|
|
|
|
// Delete the slot if no callback is left for the uid
|
|
if (registeredCallbacks[_uid].length === 0)
|
|
{
|
|
delete registeredCallbacks[_uid];
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns whether data is available for the given uid.
|
|
*
|
|
* @param _uid is the uid for which should be checked whether it has some
|
|
* data.
|
|
*/
|
|
dataHasUID: function (_uid) {
|
|
return typeof localStorage[_uid] !== "undefined";
|
|
},
|
|
|
|
/**
|
|
* Returns data of a given uid.
|
|
*
|
|
* @param _uid is the uid for which should be checked whether it has some
|
|
* data.
|
|
*/
|
|
dataGetUIDdata: function (_uid) {
|
|
return localStorage[_uid];
|
|
},
|
|
|
|
/**
|
|
* Returns all uids that have the given prefix
|
|
*
|
|
* @param {string} _prefix
|
|
* @return {array}
|
|
* TODO: Improve this
|
|
*/
|
|
dataKnownUIDs: function (_prefix) {
|
|
|
|
var result = [];
|
|
|
|
for (var key in localStorage)
|
|
{
|
|
var parts = key.split("::");
|
|
if (parts.shift() === _prefix && localStorage[key].data)
|
|
{
|
|
|
|
result.push(parts.join('::'));
|
|
}
|
|
}
|
|
|
|
return result;
|
|
},
|
|
|
|
/**
|
|
* Stores data for the uid and calls all callback functions registered
|
|
* for that uid.
|
|
*
|
|
* @param _uid is the uid for which the data should be saved.
|
|
* @param _data is the data which should be saved.
|
|
*/
|
|
dataStoreUID: function (_uid, _data) {
|
|
// Get the current unix timestamp
|
|
var timestamp = (new Date).getTime();
|
|
|
|
// Store the data in the local storage
|
|
localStorage[_uid] = {
|
|
"timestamp": timestamp,
|
|
"data": _data
|
|
};
|
|
|
|
// Inform all registered callback functions and pass the data to
|
|
// those.
|
|
if (typeof registeredCallbacks[_uid] != "undefined")
|
|
{
|
|
for (var i = registeredCallbacks[_uid].length - 1; i >= 0; i--)
|
|
{
|
|
try {
|
|
registeredCallbacks[_uid][i].callback.call(
|
|
registeredCallbacks[_uid][i].context,
|
|
_data,
|
|
_uid
|
|
);
|
|
} catch (e) {
|
|
// Remove this callback from the list
|
|
registeredCallbacks[_uid].splice(i, 1);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Deletes the data for a certain uid from the local storage and
|
|
* unregisters all callback functions associated to it.
|
|
*
|
|
* This does NOT update nextmatch!
|
|
* Application code should use: egw(window).refresh(msg, app, id, "delete");
|
|
*
|
|
* @param _uid is the uid which should be deleted.
|
|
*/
|
|
dataDeleteUID: function (_uid) {
|
|
if (typeof localStorage[_uid] !== "undefined")
|
|
{
|
|
// Delete the element from the local storage
|
|
delete localStorage[_uid];
|
|
|
|
// Unregister all callbacks for that uid
|
|
this.dataUnregisterUID(_uid);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Force a refreash of the given uid from the server if known, and
|
|
* calls all associated callbacks.
|
|
*
|
|
* If the UID does not have any registered callbacks, it cannot be refreshed because the required
|
|
* execID and context are missing.
|
|
*
|
|
* @param {string} _uid is the uid which should be refreshed.
|
|
* @return {boolean} True if the uid is known and can be refreshed, false if unknown and will not be refreshed
|
|
*/
|
|
dataRefreshUID: function (_uid) {
|
|
if (typeof localStorage[_uid] === "undefined") return false;
|
|
|
|
if(typeof registeredCallbacks[_uid] !== "undefined" && registeredCallbacks[_uid].length > 0)
|
|
{
|
|
var _execId = registeredCallbacks[_uid][0].execId;
|
|
// This widget ID MUST be a nextmatch, because the data call is to etemplate_widget_nexmatch
|
|
var nextmatchId = registeredCallbacks[_uid][0].widgetId;
|
|
var uid = _uid.split("::");
|
|
var context = {
|
|
"prefix":uid.shift()
|
|
};
|
|
uid = uid.join("::");
|
|
|
|
// find filters, even if context is not always from nextmatch, eg. caching uses it's a string context
|
|
var filters = {};
|
|
for(var i=0; i < registeredCallbacks[_uid].length; i++)
|
|
{
|
|
var callback = registeredCallbacks[_uid][i];
|
|
if (typeof callback.context == 'object' &&
|
|
typeof callback.context.self == 'object' &&
|
|
typeof callback.context.self._filters == 'object')
|
|
{
|
|
filters = callback.context.self._filters;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// need to send nextmatch filters too, as server-side will merge old version from request otherwise
|
|
this.dataFetch(_execId, {'refresh':uid}, filters, nextmatchId, false, context, [uid]);
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Search for exact UID string or regular expression and return widgets using it
|
|
*
|
|
* @param {string|RegExp} _uid is the uid which should be refreshed.
|
|
* @return {object} UID: array of (nextmatch-)wigetIds
|
|
*/
|
|
dataSearchUIDs: function(_uid)
|
|
{
|
|
var matches = {};
|
|
var f = function(_uid)
|
|
{
|
|
if (typeof matches[_uid] == "undefined")
|
|
{
|
|
matches[_uid] = [];
|
|
}
|
|
if (typeof registeredCallbacks[_uid] !== "undefined")
|
|
{
|
|
for(var n=0; n < registeredCallbacks[_uid].length; ++n)
|
|
{
|
|
var callback = registeredCallbacks[_uid][n];
|
|
if (typeof callback.context != "undefined" &&
|
|
typeof callback.context.self != "undefined" &&
|
|
typeof callback.context.self._widget != "undefined")
|
|
{
|
|
matches[_uid].push(callback.context.self._widget);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
if (typeof _uid == "object" && _uid.constructor.name == "RegExp")
|
|
{
|
|
for(var uid in localStorage)
|
|
{
|
|
if (_uid.test(uid))
|
|
{
|
|
f(uid);
|
|
}
|
|
}
|
|
}
|
|
else if (typeof localStorage[_uid] != "undefined")
|
|
{
|
|
f(_uid);
|
|
}
|
|
return matches;
|
|
},
|
|
|
|
/**
|
|
* Search for exact UID string or regular expression and call registered (nextmatch-)widgets refresh function with given _type
|
|
*
|
|
* This method is preferable over dataRefreshUID for app code, as it takes care of things like counters too.
|
|
*
|
|
* It does not do anything for _type="add"!
|
|
*
|
|
* @param {string|RegExp) _uid is the uid which should be refreshed.
|
|
* @param {string} _type "delete", "edit", "update", not useful for "add"!
|
|
* @return {array} (nextmatch-)wigets refreshed
|
|
*/
|
|
dataRefreshUIDs: function(_uid, _type)
|
|
{
|
|
var uids = this.dataSearchUIDs(_uid);
|
|
var widgets = [];
|
|
var uids4widget = [];
|
|
for(var uid in uids)
|
|
{
|
|
for(var n=0; n < uids[uid].length; ++n)
|
|
{
|
|
var widget = uids[uid][n];
|
|
var idx = widgets.indexOf(widget);
|
|
if (idx == -1)
|
|
{
|
|
widgets.push(widget);
|
|
idx = widgets.length-1;
|
|
}
|
|
// uids for nextmatch.refesh do NOT contain the prefix
|
|
var nm_uid = uid.replace(RegExp('^'+widget.controller.dataStorePrefix+'::'), '');
|
|
if (typeof uids4widget[idx] == "undefined")
|
|
{
|
|
uids4widget[idx] = [nm_uid];
|
|
}
|
|
else
|
|
{
|
|
uids4widget[idx].push(nm_uid);
|
|
}
|
|
}
|
|
}
|
|
for(var w=0; w < widgets.length; ++w)
|
|
{
|
|
widgets[w].refresh(uids4widget[w], _type);
|
|
}
|
|
return widgets;
|
|
}
|
|
};
|
|
});
|