in plugins/struts2-dojo-plugin/src/main/resources/org/apache/struts2/static/dojo/src/selection/Selection.js [18:315]
dojo.declare("dojo.selection.Selection", null, {initializer:function (items, isCollection) {
this.items = [];
this.selection = [];
this._pivotItems = [];
this.clearItems();
if (items) {
if (isCollection) {
this.setItemsCollection(items);
} else {
this.setItems(items);
}
}
}, items:null, selection:null, lastSelected:null, allowImplicit:true, length:0, isGrowable:true, _pivotItems:null, _pivotItem:null, onSelect:function (item) {
}, onDeselect:function (item) {
}, onSelectChange:function (item, selected) {
}, _find:function (item, inSelection) {
if (inSelection) {
return dojo.lang.find(this.selection, item);
} else {
return dojo.lang.find(this.items, item);
}
}, isSelectable:function (item) {
return true;
}, setItems:function () {
this.clearItems();
this.addItems.call(this, arguments);
}, setItemsCollection:function (collection) {
this.items = collection;
}, addItems:function () {
var args = dojo.lang.unnest(arguments);
for (var i = 0; i < args.length; i++) {
this.items.push(args[i]);
}
}, addItemsAt:function (item, before) {
if (this.items.length == 0) {
return this.addItems(dojo.lang.toArray(arguments, 2));
}
if (!this.isItem(item)) {
item = this.items[item];
}
if (!item) {
throw new Error("addItemsAt: item doesn't exist");
}
var idx = this._find(item);
if (idx > 0 && before) {
idx--;
}
for (var i = 2; i < arguments.length; i++) {
if (!this.isItem(arguments[i])) {
this.items.splice(idx++, 0, arguments[i]);
}
}
}, removeItem:function (item) {
var idx = this._find(item);
if (idx > -1) {
this.items.splice(idx, 1);
}
idx = this._find(item, true);
if (idx > -1) {
this.selection.splice(idx, 1);
}
}, clearItems:function () {
this.items = [];
this.deselectAll();
}, isItem:function (item) {
return this._find(item) > -1;
}, isSelected:function (item) {
return this._find(item, true) > -1;
}, selectFilter:function (item, selection, add, grow) {
return true;
}, update:function (item, add, grow, noToggle) {
if (!this.isItem(item)) {
return false;
}
if (this.isGrowable && grow) {
if ((!this.isSelected(item)) && this.selectFilter(item, this.selection, false, true)) {
this.grow(item);
this.lastSelected = item;
}
} else {
if (add) {
if (this.selectFilter(item, this.selection, true, false)) {
if (noToggle) {
if (this.select(item)) {
this.lastSelected = item;
}
} else {
if (this.toggleSelected(item)) {
this.lastSelected = item;
}
}
}
} else {
this.deselectAll();
this.select(item);
}
}
this.length = this.selection.length;
return true;
}, grow:function (toItem, fromItem) {
if (!this.isGrowable) {
return;
}
if (arguments.length == 1) {
fromItem = this._pivotItem;
if (!fromItem && this.allowImplicit) {
fromItem = this.items[0];
}
}
if (!toItem || !fromItem) {
return false;
}
var fromIdx = this._find(fromItem);
var toDeselect = {};
var lastIdx = -1;
if (this.lastSelected) {
lastIdx = this._find(this.lastSelected);
var step = fromIdx < lastIdx ? -1 : 1;
var range = dojo.math.range(lastIdx, fromIdx, step);
for (var i = 0; i < range.length; i++) {
toDeselect[range[i]] = true;
}
}
var toIdx = this._find(toItem);
var step = fromIdx < toIdx ? -1 : 1;
var shrink = lastIdx >= 0 && step == 1 ? lastIdx < toIdx : lastIdx > toIdx;
var range = dojo.math.range(toIdx, fromIdx, step);
if (range.length) {
for (var i = range.length - 1; i >= 0; i--) {
var item = this.items[range[i]];
if (this.selectFilter(item, this.selection, false, true)) {
if (this.select(item, true) || shrink) {
this.lastSelected = item;
}
if (range[i] in toDeselect) {
delete toDeselect[range[i]];
}
}
}
} else {
this.lastSelected = fromItem;
}
for (var i in toDeselect) {
if (this.items[i] == this.lastSelected) {
}
this.deselect(this.items[i]);
}
this._updatePivot();
}, growUp:function () {
if (!this.isGrowable) {
return;
}
var idx = this._find(this.lastSelected) - 1;
while (idx >= 0) {
if (this.selectFilter(this.items[idx], this.selection, false, true)) {
this.grow(this.items[idx]);
break;
}
idx--;
}
}, growDown:function () {
if (!this.isGrowable) {
return;
}
var idx = this._find(this.lastSelected);
if (idx < 0 && this.allowImplicit) {
this.select(this.items[0]);
idx = 0;
}
idx++;
while (idx > 0 && idx < this.items.length) {
if (this.selectFilter(this.items[idx], this.selection, false, true)) {
this.grow(this.items[idx]);
break;
}
idx++;
}
}, toggleSelected:function (item, noPivot) {
if (this.isItem(item)) {
if (this.select(item, noPivot)) {
return 1;
}
if (this.deselect(item)) {
return -1;
}
}
return 0;
}, select:function (item, noPivot) {
if (this.isItem(item) && !this.isSelected(item) && this.isSelectable(item)) {
this.selection.push(item);
this.lastSelected = item;
this.onSelect(item);
this.onSelectChange(item, true);
if (!noPivot) {
this._addPivot(item);
}
this.length = this.selection.length;
return true;
}
return false;
}, deselect:function (item) {
var idx = this._find(item, true);
if (idx > -1) {
this.selection.splice(idx, 1);
this.onDeselect(item);
this.onSelectChange(item, false);
if (item == this.lastSelected) {
this.lastSelected = null;
}
this._removePivot(item);
this.length = this.selection.length;
return true;
}
return false;
}, selectAll:function () {
for (var i = 0; i < this.items.length; i++) {
this.select(this.items[i]);
}
}, deselectAll:function () {
while (this.selection && this.selection.length) {
this.deselect(this.selection[0]);
}
}, selectNext:function () {
var idx = this._find(this.lastSelected);
while (idx > -1 && ++idx < this.items.length) {
if (this.isSelectable(this.items[idx])) {
this.deselectAll();
this.select(this.items[idx]);
return true;
}
}
return false;
}, selectPrevious:function () {
var idx = this._find(this.lastSelected);
while (idx-- > 0) {
if (this.isSelectable(this.items[idx])) {
this.deselectAll();
this.select(this.items[idx]);
return true;
}
}
return false;
}, selectFirst:function () {
this.deselectAll();
var idx = 0;
while (this.items[idx] && !this.select(this.items[idx])) {
idx++;
}
return this.items[idx] ? true : false;
}, selectLast:function () {
this.deselectAll();
var idx = this.items.length - 1;
while (this.items[idx] && !this.select(this.items[idx])) {
idx--;
}
return this.items[idx] ? true : false;
}, _addPivot:function (item, andClear) {
this._pivotItem = item;
if (andClear) {
this._pivotItems = [item];
} else {
this._pivotItems.push(item);
}
}, _removePivot:function (item) {
var i = dojo.lang.find(this._pivotItems, item);
if (i > -1) {
this._pivotItems.splice(i, 1);
this._pivotItem = this._pivotItems[this._pivotItems.length - 1];
}
this._updatePivot();
}, _updatePivot:function () {
if (this._pivotItems.length == 0) {
if (this.lastSelected) {
this._addPivot(this.lastSelected);
}
}
}, sorted:function () {
return dojo.lang.toArray(this.selection).sort(dojo.lang.hitch(this, function (a, b) {
var A = this._find(a), B = this._find(b);
if (A > B) {
return 1;
} else {
if (A < B) {
return -1;
} else {
return 0;
}
}
}));
}, updateSelected:function () {
for (var i = 0; i < this.selection.length; i++) {
if (this._find(this.selection[i]) < 0) {
var removed = this.selection.splice(i, 1);
this._removePivot(removed[0]);
}
}
this.length = this.selection.length;
}});