"use strict"; /** * EGroupware eTemplate2 * * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License * @package etemplate * @subpackage dataview * @link http://www.egroupware.org * @author Andreas Stöckel * @copyright Stylite 2011-2012 /*egw:uses et2_core_common; et2_core_inheritance; et2_dataview_interfaces; et2_dataview_controller_selection; et2_dataview_view_row; et2_dataview_view_tile; egw_action.egw_action; */ Object.defineProperty(exports, "__esModule", { value: true }); var et2_dataview_controller_selection_1 = require("./et2_dataview_controller_selection"); var et2_dataview_view_row_1 = require("./et2_dataview_view_row"); /** * The fetch timeout specifies the time during which the controller tries to * consolidate requests for rows. */ var ET2_DATAVIEW_FETCH_TIMEOUT = 50; var ET2_DATAVIEW_STEPSIZE = 50; /** * The et2_dataview_controller class is the intermediate layer between a grid * instance and the corresponding data source. It manages updating the grid, * as well as inserting and deleting rows. */ var et2_dataview_controller = /** @class */ (function () { /** * Constructor of the et2_dataview_controller, connects to the grid * callback. * * @param _grid is the grid the controller should controll. * @param _rowCallback is the callback function that gets called when a row * is requested. * @param _linkCallback is the callback function that gets called for * requesting action links for a row. The row data, the index of the row and * the uid are passed as parameters to the function. * uid is passed to the function. * @param _actionObjectManager is the object that manages the action * objects. */ function et2_dataview_controller(_parentController, _grid) { this._indexMap = {}; // Copy the given arguments this._parentController = _parentController; this._grid = _grid; // Initialize list of child controllers this._children = []; // Initialize the "index map" which contains all currently displayed // containers hashed by the "index" this._indexMap = {}; // Timer used for queing fetch requests this._queueTimer = null; // Array which contains all currently queued row indices in the form of // an associative array this._queue = {}; // Current concurrent requests we have this._request_queue = []; // Register the dataFetch callback this._grid.setDataCallback(this._gridCallback, this); // Record the child if (this._parentController != null) { this._parentController._children.push(this); } } et2_dataview_controller.prototype.destroy = function () { // Destroy the selection manager this._selectionMgr.destroy(); // Clear the selection timeout this._clearTimer(); // Remove the child from the child list if (this._parentController != null) { var idx = this._parentController._children.indexOf(this); if (idx >= 0) { // This element is no longer parent of the child this._parentController._children.splice(idx, 1); this._parentController = null; } } }; /** * @param value is an object implementing the et2_IDataProvider * interface */ et2_dataview_controller.prototype.setDataProvider = function (value) { this._dataProvider = value; }; et2_dataview_controller.prototype.setRowCallback = function (value) { this._rowCallback = value; }; et2_dataview_controller.prototype.setLinkCallback = function (value) { this._linkCallback = value; }; /** * @param value is the context in which the _rowCallback and the * _linkCallback are called. */ et2_dataview_controller.prototype.setContext = function (value) { this._context = value; }; et2_dataview_controller.prototype.setActionObjectManager = function (_actionObjectManager) { if (this._selectionMgr) { this._selectionMgr.destroy(); } // Create the selection manager this._selectionMgr = new et2_dataview_controller_selection_1.et2_dataview_selectionManager(this._parentController ? this._parentController._selectionMgr : null, this._indexMap, _actionObjectManager, this._selectionFetchRange, this._makeIndexVisible, this); }; /** * The update function queries the server for changes in the currently * managed index range -- those changes are then merged into the current * view without a complete rebuild of every row. * * @param {boolean} clear Skip the fancy stuff, dump everything and start again. * Completely clears the grid and selection. */ et2_dataview_controller.prototype.update = function (clear) { // --------- // TODO: Actually stuff here should be done if the server responds that // there at all were some changes (needs implementation of "refresh") // Tell the grid not to try and update itself while we do this this._grid.doInvalidate = false; if (clear) { // Scroll to top this._grid.makeIndexVisible(0); this._grid.clear(); // Free selection manager this._selectionMgr.clear(); // Clear object manager this._objectManager.clear(); // Clear the map this._indexMap = {}; // Update selection manager, it uses this by reference this._selectionMgr.setIndexMap(this._indexMap); // Clear the queue this._queue = {}; // Invalidate the change detection, re-fetches any known rows this._lastModification = 0; } // Remove all rows which are outside the view range this._grid.cleanup(); // Get the currently visible range from the grid var range = this._grid.getIndexRange(); // Force range.top and range.bottom to contain an integer if (range.top === false) { range.top = range.bottom = 0; } this._request_queue = []; // Require that range from the server this._queueFetch(et2_bounds(range.top, clear ? 0 : range.bottom + 1), 0, true); }; /** * Rebuilds the complete grid. */ et2_dataview_controller.prototype.reset = function () { // Throw away all internal mappings and reset the timestamp this._indexMap = {}; // Update selection manager, it uses this by reference this._selectionMgr.setIndexMap(this._indexMap); // Clear the grid this._grid.clear(); // Clear the row queue this._queue = {}; // Reset the request queue this._request_queue = []; // Update the data this.update(); }; /** * Loads the initial order. Do not call multiple times. */ et2_dataview_controller.prototype.loadInitialOrder = function (order) { for (var i = 0; i < order.length; i++) { this._getIndexEntry(i).uid = order[i]; } }; /** * Load initial data * * @param {string} uid_key Name of the unique row identifier field * @param {Object} data Key / Value mapping of initial data. */ et2_dataview_controller.prototype.loadInitialData = function (uid_prefix, uid_key, data) { var idx = 0; for (var key in data) { // Skip any extra keys if (typeof data[key] != "object" || data[key] == null || typeof data[key][uid_key] == "undefined") continue; // Add to row / uid map var entry = this._getIndexEntry(idx++); entry.uid = data[key][uid_key] + ""; if (entry.uid.indexOf(uid_prefix) < 0) { entry.uid = uid_prefix + "::" + entry.uid; } // Add to data cache so grid will find it egw.dataStoreUID(entry.uid, data[key]); // Don't try to insert the rows, grid will do that automatically } if (idx == 0) { // No rows, start with an empty this._selectionMgr.clear(); this._emptyRow(this._grid._total == 0); } }; /** * Returns the depth of the controller instance. */ et2_dataview_controller.prototype.getDepth = function () { if (this._parentController) { return this._parentController.getDepth() + 1; } return 0; }; /** * Set the data cache prefix * The default is to use appname, but if you need to set it explicitly to * something else to avoid conflicts. Use the same prefix everywhere for * each type of data. eg. infolog for infolog entries, even if accessed via addressbook */ et2_dataview_controller.prototype.setPrefix = function (prefix) { this.dataStorePrefix = prefix; }; /** * Returns the row information of the passed node, or null if not available * * @param {DOMNode} node * @return {string|false} UID, or false if not found */ et2_dataview_controller.prototype.getRowByNode = function (node) { // Whatever the node, find a TR var row_node = jQuery(node).closest('tr'); var row = null; // Check index map - simple case var indexed = this._getIndexEntry(row_node.index()); if (indexed && indexed.row && indexed.row.getDOMNode() == row_node[0]) { row = indexed; } else { // Check whole index map for (var index in this._indexMap) { indexed = this._indexMap[index]; if (indexed && indexed.row && indexed.row.getDOMNode() == row_node[0]) { row = indexed; break; } } } // Check children for (var i = 0; !row && i < this._children.length; i++) { var child_row = this._children[i].getRowByNode(node); if (child_row !== false) row = child_row; } if (row && !row.controller) { row.controller = this; } return row; }; /** * Returns the current "total" count. */ et2_dataview_controller.prototype.getTotalCount = function () { return this._grid.getTotalCount(); }; /* -- PRIVATE FUNCTIONS -- */ et2_dataview_controller.prototype._getIndexEntry = function (_idx) { // Create an entry in the index map if it does not exist yet if (typeof this._indexMap[_idx] === "undefined") { this._indexMap[_idx] = { "row": null, "uid": null }; } // Always update the index of the entries before returning them. This is // neccessary, as when we remove the uid from an entry without row, its // index does not get updated any further this._indexMap[_idx]["idx"] = _idx; return this._indexMap[_idx]; }; /** * Inserts a new data row into the grid. index and uid are derived from the * given management entry. If the data for the given uid does not exist yet, * a "loading" placeholder will be shown instead. The function will do * nothing if there already is a row associated to the entry. This function * will not re-insert a row if the entry already had a row. * * @param _entry is the management entry for the index the row will be * displayed at. * @param _update specifies whether the row should be updated if _entry.row * already exists. * @return true, if all data for the row has been available, false * otherwise. */ et2_dataview_controller.prototype._insertDataRow = function (_entry, _update) { var _this = this; // Abort if the entry already has a row but the _insert flag is not set if (_entry.row && !_update) { return true; } // Context used for the callback functions var ctx = { "self": this, "entry": _entry }; // Create a new row instance, if it does not exist yet var createdRow = false; if (!_entry.row) { createdRow = true; _entry.row = this._createRow(ctx); _entry.row.setDestroyCallback(this._destroyCallback, ctx); } // Load the row data if we have a uid for the entry this.hasData = false; // Gets updated by the _dataCallback if (_entry.uid) { // Register the callback / immediately load the data this._dataProvider.dataRegisterUID(_entry.uid, this._dataCallback, ctx); } // Display the loading "row prototype" if we don't have data for the row if (!this.hasData) { // Get the average height, the "-5" derives from the td padding var avg = Math.round(this._grid.getAverageHeight() - 5) + "px"; var prototype = this._grid.getRowProvider().getPrototype("loading"); jQuery("div", prototype).css("height", avg); var node = _entry.row.getJNode(); node.empty(); node.append(prototype.children()); } // Insert the row into the table -- the same row must never be inserted // twice into the grid, so this function only executes the following // code only if it is a newly created row. if (createdRow && _entry.row) { this._grid.insertRow(_entry.idx, _entry.row); } // Remove 'No matches found' row var row = jQuery(".egwGridView_empty", this._grid.innerTbody).remove(); if (row.length) { this._selectionMgr.unregisterRow("", 0); } // Update index map only for push (autorefresh disabled) if (this._indexMap[_entry.idx] && this._indexMap[_entry.idx].uid !== _entry.uid) { var max = parseInt(Object.keys(this._indexMap).reduce(function (a, b) { return _this._indexMap[a] > _this._indexMap[b] ? a : b; })); for (var idx = max; idx >= _entry.idx; idx--) { var entry = this._indexMap[idx]; this._indexMap[idx].idx = idx + 1; this._indexMap[this._indexMap[idx].idx] = this._indexMap[idx]; if (this._selectionMgr && this._selectionMgr._registeredRows[entry.uid]) { this._selectionMgr._registeredRows[entry.uid].idx = entry.idx; } } } this._indexMap[_entry.idx] = _entry; return this.hasData; }; /** * Create a new row. * * @param {type} ctx * @returns {et2_dataview_container} */ et2_dataview_controller.prototype._createRow = function (ctx) { return new et2_dataview_view_row_1.et2_dataview_row(this._grid); }; /** * Function which gets called by the grid when data is requested. * * @param _idxStart is the index of the first row for which data is * requested. * @param _idxEnd is the index of the last requested row. */ et2_dataview_controller.prototype._gridCallback = function (_idxStart, _idxEnd) { var needsData = false; // Iterate over all elements the dataview requested and create a row // which indicates that we are currently loading data for (var i = _idxStart; i <= _idxEnd; i++) { var entry = this._getIndexEntry(i); // Insert the row for the entry -- do not update rows which are // already existing, as we do not have new data for those. if (!this._insertDataRow(entry, false) && needsData === false) { needsData = i; } } // Queue fetching that data range if (needsData !== false) { this._queueFetch(et2_bounds(needsData, _idxEnd + 1), needsData == _idxStart ? 0 : needsData > _idxStart ? 1 : -1, false); } }; /** * The _queueFetch function is used to queue a fetch request. * TODO: Refresh is currently not used */ et2_dataview_controller.prototype._queueFetch = function (_range, _direction, _isUpdate) { // Force immediate to be false _isUpdate = _isUpdate ? _isUpdate : false; // Push the requests onto the request queue var start = Math.max(0, _range.top); var end = Math.min(this._grid.getTotalCount(), _range.bottom); for (var i = start; i < end; i++) { if (typeof this._queue[i] === "undefined") { this._queue[i] = _direction; // Stage 1 - queue for after current, -1 -- queue for before current } } // Start the queue timer, if this has not already been done if (this._queueTimer === null && !_isUpdate) { var self = this; egw.debug('log', 'Dataview queue: ', _range); this._queueTimer = window.setTimeout(function () { self._flushQueue(false); }, ET2_DATAVIEW_FETCH_TIMEOUT); } if (_isUpdate) { this._flushQueue(true); } }; /** * Flushes the queue. */ et2_dataview_controller.prototype._flushQueue = function (_isUpdate) { // Clear any still existing timer this._clearTimer(); // Mark all elements in a radius of ET2_DATAVIEW_STEPSIZE var marked = {}; var r = _isUpdate ? 0 : Math.floor(ET2_DATAVIEW_STEPSIZE / 2); var total = this._grid.getTotalCount(); for (var key in this._queue) { if (this._queue[key] > 1) continue; key = parseInt(key); var b = Math.max(0, key - r + (r * this._queue[key])); var t = Math.min(key + r + (r * this._queue[key]), total - 1); var c = 0; for (var i = b; i <= t && c < ET2_DATAVIEW_STEPSIZE; i++) { if (typeof this._queue[i] == "undefined" || this._queue[i] <= 1) { this._queue[i] = 2; // Stage 2 -- pending or available marked[i] = true; c++; } } } // Create a list with start indices and counts var fetchList = []; var entry = null; var last = 0; // Get the int keys and sort the array numeric var arr = et2_arrayIntKeys(marked).sort(function (a, b) { return a > b ? 1 : (a == b ? 0 : -1); }); for (var i = 0; i < arr.length; i++) { if (i == 0 || arr[i] - last > 1) { if (entry) { fetchList.push(entry); } entry = { "start": arr[i], "count": 1 }; } else { entry.count++; } last = arr[i]; } if (entry) { fetchList.push(entry); } // Special case: If there are no entries in the fetch list and this is // an update, create an dummy entry, so that we'll get the current count if (fetchList.length === 0 && _isUpdate) { fetchList.push({ "start": 0, "count": 0 }); // Disable grid invalidate, or it might request again before we're done this._grid.doInvalidate = false; } egw.debug("log", "Dataview flush", fetchList); // Execute all queries for (var i = 0; i < fetchList.length; i++) { // Build the query var query = { "start": fetchList[i].start, "num_rows": fetchList[i].count, "refresh": false }; // Context used in the callback function var ctx = { "self": this, "start": query.start, "count": query.num_rows, "lastModification": this._lastModification }; if (this.dataStorePrefix) { ctx.prefix = this.dataStorePrefix; } this._queueRequest(query, ctx); } }; /** * Queue a request for data * @param {Object} query * @param {Object} ctx */ et2_dataview_controller.prototype._queueRequest = function (query, ctx) { this._request_queue.push({ query: query, context: ctx, // Start pending, set to 1 when request sent status: 0 }); this._fetchQueuedRequest(); }; /** * Fetch data for a queued request, subject to rate limit */ et2_dataview_controller.prototype._fetchQueuedRequest = function () { // Check to see if there's room var count = 0; for (var i = 0; i < this._request_queue.length; i++) { if (this._request_queue[i].status > 0) count++; } // Too many requests, will try again after response is received if (count >= et2_dataview_controller.CONCURRENT_REQUESTS || this._request_queue.length === 0) { return; } // Keep at least 1 previous pending var keep = 1; // The most recent is the one the user's most interested in var request = null; for (var i = this._request_queue.length - 1; i >= 0; i--) { // Only interested in pending requests (status 0) if (this._request_queue[i].status != 0) { continue; } if (request == null) { request = this._request_queue[i]; } else if (keep > 0) { keep--; } else if (keep <= 0) { // Cancel pending, they've probably scrolled past. this._request_queue.splice(i, 1); } } if (request == null) return; // Request being sent request.status = 1; // Call the callback this._dataProvider.dataFetch(request.query, this._fetchCallback, request.context); }; et2_dataview_controller.prototype._clearTimer = function () { // Reset the queue timer upon destruction if (this._queueTimer) { window.clearTimeout(this._queueTimer); this._queueTimer = null; } }; /** * Called by the data source when the data changes * * @param _data Object|null New data, or null. Null will remove the row. */ et2_dataview_controller.prototype._dataCallback = function (_data) { // Set the "hasData" flag this.self.hasData = true; // Call the row callback with the new data -- the row callback then // generates the row DOM nodes that will be inserted into the grid if (this.self._rowCallback) { // Remove everything from the current row this.entry.row.clear(); // If there's no data, stop if (typeof _data == "undefined" || _data == null) { this.self._destroyCallback.call(this, this.entry.row); return; } // Fill the row DOM Node with data this.self._rowCallback.call(this.self._context, _data, this.entry.row, this.entry.idx, this.entry); // Attach the "subgrid" tag to the row, if the depth of this // controller is larger than zero var tr = this.entry.row.getDOMNode(); var d = this.self.getDepth(); if (d > 0) { jQuery(tr).addClass("subentry"); jQuery("td:first", tr).children("div").last().addClass("level_" + d + " indentation"); if (this.entry.idx == 0) { // Set the CSS for the level - required so columns line up var indent = jQuery("").appendTo('body'); egw.css(".subentry td div.innerContainer.level_" + d, "margin-right:" + (parseInt(indent.css("margin-right")) * d) + "px"); indent.remove(); } } var links = null; // Look for a flag in the row to avoid actions. Use for sums or extra header rows. if (!_data.no_actions) { // Get the action links if the links callback is set if (this.self._linkCallback) { links = this.self._linkCallback.call(this.self._context, _data, this.entry.idx, this.entry.uid); } // Register the row in the selection manager this.self._selectionMgr.registerRow(this.entry.uid, this.entry.idx, tr, links); } else { // Remember that this.entry.no_actions = true; } // Invalidate the current row entry this.entry.row.invalidate(); } }; /** * */ et2_dataview_controller.prototype._destroyCallback = function (_row) { // Unregister the row from the selection manager, if not selected // If it is selected, leave it there - allows selecting rows and scrolling var selection = this.self._selectionMgr._getRegisteredRowsEntry(this.entry.uid); if (this.entry.row && selection && !egwBitIsSet(selection.state, EGW_AO_STATE_SELECTED)) { var tr = this.entry.row.getDOMNode(); this.self._selectionMgr._updateState(this.entry.uid, EGW_AO_STATE_NORMAL); this.self._selectionMgr.unregisterRow(this.entry.uid, tr); } // There is no further row connected to the entry this.entry.row = null; // Unregister the data callback this.self._dataProvider.dataUnregisterUID(this.entry.uid, this.self._dataCallback, this); }; /** * Returns an array containing "_count" index mapping entries starting from * the index given in "_start". */ et2_dataview_controller.prototype._getIndexMapping = function (_start, _count) { var result = []; for (var i = _start; i < _start + _count; i++) { result.push(this._getIndexEntry(i)); } return result; }; /** * Updates the grid according to the new order. The function simply does the * following: It iterates along the new order (given in _order) and the old * order given in _idxMap. Iteration variables used are * a) i -- points to the current entry in _order * b) idx -- points to the current grid row that will be effected by * this operation. * c) mapIdx -- points to the current entry in _indexMap * The following cases may occur: * a) The current entry in the old order has no uid or no row -- in that * case the row at the current position is simply updated, * the old pointer will be incremented. * b) The two uids differ -- insert a new row with the new uid, do not * increment the old pointer. * c) The two uids are the same -- increment the old pointer. * In a last step all rows that are left in the old order are deleted. All * newly created index entries are returned. This function does not update * the internal mapping in _idxMap. */ et2_dataview_controller.prototype._updateOrder = function (_start, _count, _idxMap, _order) { // The result contains the newly created index map entries which have to // be merged with the result var result = []; // Iterate over the new order var mapIdx = 0; var idx = _start; for (var i = 0; i < _order.length; i++, idx++) { var current = _idxMap[mapIdx]; if (!current.row || !current.uid) { // If there is no row yet at the current position or the uid // of that entry is unknown, simply update the entry. current.uid = _order[i]; current.idx = idx; // Only update the row, if it is displayed (e.g. has a "loading" // row displayed) -- this is needed for prefetching if (current.row) { this._insertDataRow(current, true); } mapIdx++; } else if (current.uid !== _order[i]) { // Insert a new row at the new position var entry = { "idx": idx, "uid": _order[i], "row": null }; this._insertDataRow(entry, true); // Remember the new entry result.push(entry); } else { // Do nothing, the uids do not differ, just update the index of // the element current.idx = idx; mapIdx++; } } // Delete as many rows as we have left, invalidate the corresponding // index entry for (var i = mapIdx; i < _idxMap.length; i++) { if (typeof _idxMap[i] != 'undefined') { _idxMap[i].uid = null; } } return result; }; et2_dataview_controller.prototype._mergeResult = function (_newEntries, _invalidStartIdx, _diff, _total) { if (_newEntries.length > 0 || _diff > 0) { // Create a new index map var newMap = {}; // Insert all new entries into the new index map for (var i = 0; i < _newEntries.length; i++) { newMap[_newEntries[i].idx] = _newEntries[i]; } // Merge the old map with all old entries for (var key in this._indexMap) { // Get the corresponding index entry var entry = this._indexMap[key]; // Calculate the new index -- if rows were deleted, we'll // have to adjust the index var newIdx = entry.idx >= _invalidStartIdx ? entry.idx - _diff : entry.idx; if (newIdx >= 0 && newIdx < _total && typeof newMap[newIdx] === "undefined") { entry.idx = newIdx; newMap[newIdx] = entry; } else if (newMap[newIdx] !== this._indexMap[key]) { // Make sure the old entry gets invalidated entry.idx = null; entry.row = null; } } // Make the new index map the current index map this._indexMap = newMap; this._selectionMgr.setIndexMap(newMap); } }; et2_dataview_controller.prototype._fetchCallback = function (_response) { // Remove answered request from queue var request = null; for (var i = 0; i < this.self._request_queue.length; i++) { if (this.self._request_queue[i].context == this) { request = this.self._request_queue[i]; this.self._request_queue.splice(i, 1); break; } } this.self._lastModification = _response.lastModification; // Do nothing if _response.order evaluates to false if (!_response.order) { return; } // Make sure _response.order.length is not longer than the requested // count, if a specific count was requested var order = this.count != 0 ? _response.order.splice(0, this.count) : _response.order; // Remove from queue, or it will not be fetched again if (_response.total < this.count) { // Less rows than we expected // Clear the queue, or the remnants will never be loaded again this.self._queue = {}; } else { for (var i = this.start; i < this.start + order.length; i++) delete this.self._queue[i]; } // Get the current index map for the updated region var idxMap = this.self._getIndexMapping(this.start, order.length); // Update the grid using the new order. The _updateOrder function does // not update the internal mapping while inserting and deleting rows, as // this would move us to another asymptotic runtime level. var res = this.self._updateOrder(this.start, this.count, idxMap, order); // Merge the new indices, update all indices with rows that were not // affected and invalidate all indices if there were changes this.self._mergeResult(res, this.start + order.length, idxMap.length - order.length, _response.total); if (_response.total == 0) { this.self._emptyRow(true); } else { var row = jQuery(".egwGridView_empty", this.self._grid.innerTbody).remove(); this.self._selectionMgr.unregisterRow("", 0, row.get(0)); } // Now it's OK to invalidate, if it wasn't before this.self._grid.doInvalidate = true; // Update the total element count in the grid this.self._grid.setTotalCount(_response.total); this.self._selectionMgr.setTotalCount(_response.total); // Schedule an invalidate, in case total is the same this.self._grid.invalidate(); // Check if requests are waiting this.self._fetchQueuedRequest(); }; /** * Insert an empty / placeholder row when there is no data to display */ et2_dataview_controller.prototype._emptyRow = function (_noRows) { var noRows = !_noRows ? false : true; jQuery(".egwGridView_empty", this._grid.innerTbody).remove(); if (typeof this._grid._rowProvider != "undefined" && this._grid._rowProvider.getPrototype("empty")) { var placeholder = this._grid._rowProvider.getPrototype("empty"); if (jQuery("td", placeholder).length == 1) { jQuery("td", placeholder).css("width", this._grid.outerCell.width() + "px"); } placeholder.appendTo(this._grid.innerTbody); // Register placeholder action only if no rows if (noRows) { // Get the action links if the links callback is set var links = null; if (this._linkCallback) { links = this._linkCallback.call(this._context, {}, 0, ""); } this._selectionMgr.registerRow("", 0, placeholder.get(0), links); } } }; /** * Callback function used by the selection manager to translate the selected * range to uids. */ et2_dataview_controller.prototype._selectionFetchRange = function (_range, _callback, _context) { this._dataProvider.dataFetch({ "start": _range.top, "num_rows": _range.bottom - _range.top + 1, "no_data": true }, function (_response) { _callback.call(_context, _response.order); }, _context); }; /** * Tells the grid to make the given index visible. */ et2_dataview_controller.prototype._makeIndexVisible = function (_idx) { this._grid.makeIndexVisible(_idx); }; // Maximum concurrent data requests. Additional ones are held in the queue. et2_dataview_controller.CONCURRENT_REQUESTS = 5; return et2_dataview_controller; }()); exports.et2_dataview_controller = et2_dataview_controller; //# sourceMappingURL=et2_dataview_controller.js.map