devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
249 lines (246 loc) • 10.2 kB
JavaScript
/**
* DevExtreme (ui/collection/ui.collection_widget.live_update.js)
* Version: 19.2.6
* Build date: Thu Jan 30 2020
*
* Copyright (c) 2012 - 2020 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _renderer = require("../../core/renderer");
var _renderer2 = _interopRequireDefault(_renderer);
var _uiCollection_widget = require("./ui.collection_widget.edit");
var _uiCollection_widget2 = _interopRequireDefault(_uiCollection_widget);
var _extend = require("../../core/utils/extend");
var _type = require("../../core/utils/type");
var _array_utils = require("../../data/array_utils");
var _array_utils2 = _interopRequireDefault(_array_utils);
var _utils = require("../../data/utils");
var _deferred = require("../../core/utils/deferred");
var _array_compare = require("../../core/utils/array_compare");
var _dom_adapter = require("../../core/dom_adapter");
var _common = require("../../core/utils/common");
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
"default": obj
}
}
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
})
} else {
obj[key] = value
}
return obj
}
var PRIVATE_KEY_FIELD = "__dx_key__";
exports.default = _uiCollection_widget2.default.inherit({
_getDefaultOptions: function() {
return (0, _extend.extend)(this.callBase(), {
repaintChangesOnly: false
})
},
ctor: function() {
var _this = this;
this.callBase.apply(this, arguments);
this._customizeStoreLoadOptions = function(e) {
var dataSource = _this._dataSource;
if (dataSource && !dataSource.isLoaded()) {
_this._correctionIndex = 0
}
if (_this._correctionIndex && e.storeLoadOptions) {
e.storeLoadOptions.skip += _this._correctionIndex
}
}, this._dataSource && this._dataSource.on("customizeStoreLoadOptions", this._customizeStoreLoadOptions)
},
reload: function() {
this._correctionIndex = 0
},
_init: function() {
this.callBase();
this._refreshItemsCache();
this._correctionIndex = 0
},
_findItemElementByKey: function(key) {
var _this2 = this;
var result = (0, _renderer2.default)();
var keyExpr = this.key();
this.itemElements().each(function(_, item) {
var $item = (0, _renderer2.default)(item);
var itemData = _this2._getItemData($item);
if (keyExpr ? (0, _utils.keysEqual)(_this2.keyOf(itemData), key) : _this2._isItemEquals(itemData, key)) {
result = $item;
return false
}
});
return result
},
_dataSourceChangedHandler: function(newItems, e) {
e && e.changes ? this._modifyByChanges(e.changes) : this.callBase(newItems, e)
},
_isItemEquals: function(item1, item2) {
if (item1 && item1[PRIVATE_KEY_FIELD]) {
item1 = item1.data
}
try {
return JSON.stringify(item1) === JSON.stringify(item2)
} catch (e) {
return item1 === item2
}
},
_partialRefresh: function() {
var _this3 = this;
if (this.option("repaintChangesOnly")) {
var keyOf = function(data) {
if (data && void 0 !== data[PRIVATE_KEY_FIELD]) {
return data[PRIVATE_KEY_FIELD]
}
return _this3.keyOf(data)
};
var result = (0, _array_compare.findChanges)(this._itemsCache, this._editStrategy.itemsGetter(), keyOf, this._isItemEquals);
if (result && this._itemsCache.length) {
this._modifyByChanges(result, true);
this._renderEmptyMessage();
return true
} else {
this._refreshItemsCache()
}
}
return false
},
_refreshItemsCache: function() {
if (this.option("repaintChangesOnly")) {
var items = this._editStrategy.itemsGetter();
try {
this._itemsCache = (0, _extend.extend)(true, [], items);
if (!this.key()) {
this._itemsCache = this._itemsCache.map(function(itemCache, index) {
var _ref;
return _ref = {}, _defineProperty(_ref, PRIVATE_KEY_FIELD, items[index]), _defineProperty(_ref, "data", itemCache), _ref
})
}
} catch (e) {
this._itemsCache = (0, _extend.extend)([], items)
}
}
},
_dispose: function() {
this._dataSource && this._dataSource.off("customizeStoreLoadOptions", this._customizeStoreLoadOptions);
this.callBase()
},
_updateByChange: function(keyInfo, items, change, isPartialRefresh) {
var _this4 = this;
if (isPartialRefresh) {
this._renderItem(change.index, change.data, null, this._findItemElementByKey(change.key))
} else {
var changedItem = items[_array_utils2.default.indexByKey(keyInfo, items, change.key)];
if (changedItem) {
_array_utils2.default.update(keyInfo, items, change.key, change.data).done(function() {
_this4._renderItem(items.indexOf(changedItem), changedItem, null, _this4._findItemElementByKey(change.key))
})
}
}
},
_insertByChange: function(keyInfo, items, change, isPartialRefresh) {
var _this5 = this;
(0, _deferred.when)(isPartialRefresh || _array_utils2.default.insert(keyInfo, items, change.data, change.index)).done(function() {
_this5._beforeItemElementInserted(change);
_this5._renderItem((0, _type.isDefined)(change.index) ? change.index : items.length, change.data);
_this5._afterItemElementInserted();
_this5._correctionIndex++
})
},
_updateSelectionAfterRemoveByChange: function(removeIndex) {
var selectedIndex = this.option("selectedIndex");
if (selectedIndex > removeIndex) {
this.option("selectedIndex", selectedIndex - 1)
} else {
if (selectedIndex === removeIndex && 1 === this.option("selectedItems").length) {
this.option("selectedItems", [])
} else {
this._normalizeSelectedItems()
}
}
},
_beforeItemElementInserted: function(change) {
var selectedIndex = this.option("selectedIndex");
if (change.index <= selectedIndex) {
this.option("selectedIndex", selectedIndex + 1)
}
},
_afterItemElementInserted: _common.noop,
_removeByChange: function(keyInfo, items, change, isPartialRefresh) {
var _this6 = this;
var index = isPartialRefresh ? change.index : _array_utils2.default.indexByKey(keyInfo, items, change.key);
var removedItem = isPartialRefresh ? change.oldItem : items[index];
if (removedItem) {
var $removedItemElement = this._findItemElementByKey(change.key);
var deletedActionArgs = this._extendActionArgs($removedItemElement);
this._waitDeletingPrepare($removedItemElement).done(function() {
if (isPartialRefresh) {
_this6._updateIndicesAfterIndex(index - 1);
_this6._afterItemElementDeleted($removedItemElement, deletedActionArgs);
_this6._updateSelectionAfterRemoveByChange(index)
} else {
_this6._deleteItemElementByIndex(index);
_this6._afterItemElementDeleted($removedItemElement, deletedActionArgs)
}
});
this._correctionIndex--
}
},
_modifyByChanges: function(changes, isPartialRefresh) {
var _this7 = this;
var items = this._editStrategy.itemsGetter();
var keyInfo = {
key: this.key.bind(this),
keyOf: this.keyOf.bind(this)
};
var dataSource = this._dataSource;
var paginate = dataSource && dataSource.paginate();
var group = dataSource && dataSource.group();
if (paginate || group) {
changes = changes.filter(function(item) {
return "insert" !== item.type || void 0 !== item.index
})
}
changes.forEach(function(change) {
return _this7["_".concat(change.type, "ByChange")](keyInfo, items, change, isPartialRefresh)
});
this._renderedItemsCount = items.length;
this._refreshItemsCache();
this._fireContentReadyAction()
},
_appendItemToContainer: function($container, $itemFrame, index) {
var nextSiblingElement = $container.children(this._itemSelector()).get(index);
(0, _dom_adapter.insertElement)($container.get(0), $itemFrame.get(0), nextSiblingElement)
},
_optionChanged: function(args) {
switch (args.name) {
case "items":
var isItemsUpdated = this._partialRefresh(args.value);
if (!isItemsUpdated) {
this.callBase(args)
}
break;
case "dataSource":
if (!this.option("repaintChangesOnly") || !args.value) {
this.option("items", [])
}
this.callBase(args);
break;
case "repaintChangesOnly":
break;
default:
this.callBase(args)
}
}
});