sp-select
Version:
92 lines • 12.8 kB
JavaScript
import { __read, __spread, __values } from "tslib";
export function DefaultSelectionModelFactory() {
return new DefaultSelectionModel();
}
var DefaultSelectionModel = /** @class */ (function () {
function DefaultSelectionModel() {
this._selected = [];
}
Object.defineProperty(DefaultSelectionModel.prototype, "value", {
get: function () {
return this._selected;
},
enumerable: true,
configurable: true
});
DefaultSelectionModel.prototype.select = function (item, multiple, groupAsModel) {
item.selected = true;
if (!item.children || (!multiple && groupAsModel)) {
this._selected.push(item);
}
if (multiple) {
if (item.parent) {
var childrenCount = item.parent.children.length;
var selectedCount = item.parent.children.filter(function (x) { return x.selected; }).length;
item.parent.selected = childrenCount === selectedCount;
}
else if (item.children) {
this._setChildrenSelectedState(item.children, true);
this._removeChildren(item);
if (groupAsModel && this._activeChildren(item)) {
this._selected = __spread(this._selected.filter(function (x) { return x.parent !== item; }), [item]);
}
else {
this._selected = __spread(this._selected, item.children.filter(function (x) { return !x.disabled; }));
}
}
}
};
DefaultSelectionModel.prototype.unselect = function (item, multiple) {
var _a;
this._selected = this._selected.filter(function (x) { return x !== item; });
item.selected = false;
if (multiple) {
if (item.parent && item.parent.selected) {
var children = item.parent.children;
this._removeParent(item.parent);
this._removeChildren(item.parent);
(_a = this._selected).push.apply(_a, __spread(children.filter(function (x) { return x !== item && !x.disabled; })));
item.parent.selected = false;
}
else if (item.children) {
this._setChildrenSelectedState(item.children, false);
this._removeChildren(item);
}
}
};
DefaultSelectionModel.prototype.clear = function (keepDisabled) {
this._selected = keepDisabled ? this._selected.filter(function (x) { return x.disabled; }) : [];
};
DefaultSelectionModel.prototype._setChildrenSelectedState = function (children, selected) {
var e_1, _a;
try {
for (var children_1 = __values(children), children_1_1 = children_1.next(); !children_1_1.done; children_1_1 = children_1.next()) {
var child = children_1_1.value;
if (child.disabled) {
continue;
}
child.selected = selected;
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (children_1_1 && !children_1_1.done && (_a = children_1.return)) _a.call(children_1);
}
finally { if (e_1) throw e_1.error; }
}
;
};
DefaultSelectionModel.prototype._removeChildren = function (parent) {
this._selected = __spread(this._selected.filter(function (x) { return x.parent !== parent; }), parent.children.filter(function (x) { return x.parent === parent && x.disabled && x.selected; }));
};
DefaultSelectionModel.prototype._removeParent = function (parent) {
this._selected = this._selected.filter(function (x) { return x !== parent; });
};
DefaultSelectionModel.prototype._activeChildren = function (item) {
return item.children.every(function (x) { return !x.disabled || x.selected; });
};
return DefaultSelectionModel;
}());
export { DefaultSelectionModel };
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{ SpOption } from './sp-select.types';\n\nexport type SelectionModelFactory = () => SelectionModel;\n\nexport function DefaultSelectionModelFactory() {\n    return new DefaultSelectionModel();\n}\n\nexport interface SelectionModel {\n    value: SpOption[];\n    select(item: SpOption, multiple: boolean, selectableGroupAsModel: boolean);\n    unselect(item: SpOption, multiple: boolean);\n    clear(keepDisabled: boolean);\n}\n\nexport class DefaultSelectionModel implements SelectionModel {\n    private _selected: SpOption[] = [];\n\n    get value(): SpOption[] {\n        return this._selected;\n    }\n\n    select(item: SpOption, multiple: boolean, groupAsModel: boolean) {\n        item.selected = true;\n        if (!item.children || (!multiple && groupAsModel)) {\n            this._selected.push(item);\n        }\n        if (multiple) {\n            if (item.parent) {\n                const childrenCount = item.parent.children.length;\n                const selectedCount = item.parent.children.filter(x => x.selected).length;\n                item.parent.selected = childrenCount === selectedCount;\n            } else if (item.children) {\n                this._setChildrenSelectedState(item.children, true);\n                this._removeChildren(item);\n                if (groupAsModel && this._activeChildren(item)) {\n                    this._selected = [...this._selected.filter(x => x.parent !== item), item]\n                } else {\n                    this._selected = [...this._selected, ...item.children.filter(x => !x.disabled)];\n                }\n            }\n        }\n    }\n\n    unselect(item: SpOption, multiple: boolean) {\n        this._selected = this._selected.filter(x => x !== item);\n        item.selected = false;\n        if (multiple) {\n            if (item.parent && item.parent.selected) {\n                const children = item.parent.children;\n                this._removeParent(item.parent);\n                this._removeChildren(item.parent);\n                this._selected.push(...children.filter(x => x !== item && !x.disabled));\n                item.parent.selected = false;\n            } else if (item.children) {\n                this._setChildrenSelectedState(item.children, false);\n                this._removeChildren(item);\n            }\n        }\n    }\n\n    clear(keepDisabled: boolean) {\n        this._selected = keepDisabled ? this._selected.filter(x => x.disabled) : [];\n    }\n\n    private _setChildrenSelectedState(children: SpOption[], selected: boolean) {\n        for (const child of children) {\n            if (child.disabled) {\n                continue;\n            }\n            child.selected = selected;\n        };\n    }\n\n    private _removeChildren(parent: SpOption) {\n        this._selected = [\n            ...this._selected.filter(x => x.parent !== parent), \n            ...parent.children.filter(x => x.parent === parent && x.disabled && x.selected)\n        ];\n    }\n\n    private _removeParent(parent: SpOption) {\n        this._selected = this._selected.filter(x => x !== parent)\n    }\n\n    private _activeChildren(item: SpOption): boolean {\n        return item.children.every(x => !x.disabled || x.selected);\n    }\n\n\n\n    \n}\n"]}