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@ng-select/ng-select

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Angular ng-select - All in One UI Select, Multiselect and Autocomplete

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/** * @fileoverview added by tsickle * @suppress {checkTypes,extraRequire,uselessCode} checked by tsc */ import * as searchHelper from './search-helper'; import { isDefined, isFunction, isObject } from './value-utils'; import { newId } from './id'; /** @typedef {?} */ var OptionGroups; export class ItemsList { /** * @param {?} _ngSelect * @param {?} _selectionModel */ constructor(_ngSelect, _selectionModel) { this._ngSelect = _ngSelect; this._selectionModel = _selectionModel; this._items = []; this._filteredItems = []; this._markedIndex = -1; } /** * @return {?} */ get items() { return this._items; } /** * @return {?} */ get filteredItems() { return this._filteredItems; } /** * @return {?} */ get markedIndex() { return this._markedIndex; } /** * @return {?} */ get selectedItems() { return this._selectionModel.value; } /** * @return {?} */ get markedItem() { return this._filteredItems[this._markedIndex]; } /** * @return {?} */ get noItemsToSelect() { return this._ngSelect.hideSelected && this._items.length === this.selectedItems.length; } /** * @return {?} */ get maxItemsSelected() { return this._ngSelect.multiple && this._ngSelect.maxSelectedItems <= this.selectedItems.length; } /** * @return {?} */ get lastSelectedItem() { return this.selectedItems[this.selectedItems.length - 1]; } /** * @param {?} items * @return {?} */ setItems(items) { this._items = items.map((item, index) => this.mapItem(item, index)); if (this._ngSelect.groupBy) { this._groups = this._groupBy(this._items, this._ngSelect.groupBy); this._items = this._flatten(this._groups); } else { this._groups = new Map(); this._groups.set(undefined, this._items); } this._filteredItems = [...this._items]; } /** * @param {?} item * @return {?} */ select(item) { if (item.selected || this.maxItemsSelected) { return; } /** @type {?} */ const multiple = this._ngSelect.multiple; if (!multiple) { this.clearSelected(); } this._selectionModel.select(item, multiple, this._ngSelect.selectableGroupAsModel); if (this._ngSelect.hideSelected && multiple) { this._hideSelected(item); } } /** * @param {?} item * @return {?} */ unselect(item) { if (!item.selected) { return; } this._selectionModel.unselect(item, this._ngSelect.multiple); if (this._ngSelect.hideSelected && isDefined(item.index) && this._ngSelect.multiple) { this._showSelected(item); } } /** * @param {?} value * @return {?} */ findItem(value) { /** @type {?} */ let findBy; if (this._ngSelect.compareWith) { findBy = item => this._ngSelect.compareWith(item.value, value); } else if (this._ngSelect.bindValue) { findBy = item => !item.children && this.resolveNested(item.value, this._ngSelect.bindValue) === value; } else { findBy = item => item.value === value || !item.children && item.label && item.label === this.resolveNested(value, this._ngSelect.bindLabel); } return this._items.find(item => findBy(item)); } /** * @param {?} item * @return {?} */ addItem(item) { /** @type {?} */ const option = this.mapItem(item, this._items.length); this._items.push(option); this._filteredItems.push(option); return option; } /** * @return {?} */ clearSelected() { this._selectionModel.clear(); this._items.forEach((item) => { item.selected = false; item.marked = false; }); if (this._ngSelect.hideSelected) { this.resetFilteredItems(); } } /** * @param {?} term * @return {?} */ findByLabel(term) { term = searchHelper.stripSpecialChars(term).toLocaleLowerCase(); return this.filteredItems.find(item => { /** @type {?} */ const label = searchHelper.stripSpecialChars(item.label).toLocaleLowerCase(); return label.substr(0, term.length) === term; }); } /** * @param {?} term * @return {?} */ filter(term) { if (!term) { this.resetFilteredItems(); return; } this._filteredItems = []; term = this._ngSelect.searchFn ? term : searchHelper.stripSpecialChars(term).toLocaleLowerCase(); /** @type {?} */ const match = this._ngSelect.searchFn || this._defaultSearchFn; /** @type {?} */ const hideSelected = this._ngSelect.hideSelected; for (const key of Array.from(this._groups.keys())) { /** @type {?} */ const matchedItems = []; for (const item of this._groups.get(key)) { if (hideSelected && (item.parent && item.parent.selected || item.selected)) { continue; } /** @type {?} */ const searchItem = this._ngSelect.searchFn ? item.value : item; if (match(term, searchItem)) { matchedItems.push(item); } } if (matchedItems.length > 0) { const [last] = matchedItems.slice(-1); if (last.parent) { /** @type {?} */ const head = this._items.find(x => x === last.parent); this._filteredItems.push(head); } this._filteredItems.push(...matchedItems); } } } /** * @return {?} */ resetFilteredItems() { if (this._filteredItems.length === this._items.length) { return; } if (this._ngSelect.hideSelected && this.selectedItems.length > 0) { this._filteredItems = this._items.filter(x => !x.selected); } else { this._filteredItems = this._items; } } /** * @return {?} */ unmarkItem() { this._markedIndex = -1; } /** * @return {?} */ markNextItem() { this._stepToItem(+1); } /** * @return {?} */ markPreviousItem() { this._stepToItem(-1); } /** * @param {?} item * @return {?} */ markItem(item) { this._markedIndex = this._filteredItems.indexOf(item); } /** * @param {?=} markDefault * @return {?} */ markSelectedOrDefault(markDefault) { if (this._filteredItems.length === 0) { return; } /** @type {?} */ const indexOfLastSelected = this._ngSelect.hideSelected ? -1 : this._filteredItems.indexOf(this.lastSelectedItem); if (this.lastSelectedItem && indexOfLastSelected > -1) { this._markedIndex = indexOfLastSelected; } else { this._markedIndex = markDefault ? this.filteredItems.findIndex(x => !x.disabled) : -1; } } /** * @param {?} option * @param {?} key * @return {?} */ resolveNested(option, key) { if (!isObject(option)) { return option; } if (key.indexOf('.') === -1) { return option[key]; } else { /** @type {?} */ let keys = key.split('.'); /** @type {?} */ let value = option; for (let i = 0, len = keys.length; i < len; ++i) { if (value == null) { return null; } value = value[keys[i]]; } return value; } } /** * @param {?} item * @param {?} index * @return {?} */ mapItem(item, index) { /** @type {?} */ const label = isDefined(item.$ngOptionLabel) ? item.$ngOptionLabel : this.resolveNested(item, this._ngSelect.bindLabel); /** @type {?} */ const value = isDefined(item.$ngOptionValue) ? item.$ngOptionValue : item; return { index: index, label: isDefined(label) ? label.toString() : '', value: value, disabled: item.disabled, htmlId: newId() }; } /** * @return {?} */ mapSelectedItems() { this.selectedItems.forEach((selected, i) => { /** @type {?} */ const value = this._ngSelect.bindValue ? selected.value[this._ngSelect.bindValue] : selected.value; /** @type {?} */ const item = this.findItem(value); if (item && selected !== item) { item.selected = true; this.selectedItems[i] = item; } }); if (this._ngSelect.hideSelected) { this._filteredItems = this.filteredItems.filter(x => this.selectedItems.indexOf(x) === -1); } } /** * @param {?} item * @return {?} */ _showSelected(item) { this._filteredItems.push(item); if (item.parent) { /** @type {?} */ const parent = item.parent; /** @type {?} */ const parentExists = this._filteredItems.find(x => x === parent); if (!parentExists) { this._filteredItems.push(parent); } } else if (item.children) { for (const child of item.children) { child.selected = false; this._filteredItems.push(child); } } this._filteredItems = [...this._filteredItems.sort((a, b) => (a.index - b.index))]; } /** * @param {?} item * @return {?} */ _hideSelected(item) { this._filteredItems = this._filteredItems.filter(x => x !== item); if (item.parent) { /** @type {?} */ const children = item.parent.children; if (children.every(x => x.selected)) { this._filteredItems = this._filteredItems.filter(x => x !== item.parent); } } else if (item.children) { this._filteredItems = this.filteredItems.filter(x => x.parent !== item); } } /** * @param {?} search * @param {?} opt * @return {?} */ _defaultSearchFn(search, opt) { /** @type {?} */ const label = searchHelper.stripSpecialChars(opt.label).toLocaleLowerCase(); return label.indexOf(search) > -1; } /** * @param {?} steps * @return {?} */ _getNextItemIndex(steps) { if (steps > 0) { return (this._markedIndex === this._filteredItems.length - 1) ? 0 : (this._markedIndex + 1); } return (this._markedIndex <= 0) ? (this._filteredItems.length - 1) : (this._markedIndex - 1); } /** * @param {?} steps * @return {?} */ _stepToItem(steps) { if (this._filteredItems.length === 0 || this._filteredItems.every(x => x.disabled)) { return; } this._markedIndex = this._getNextItemIndex(steps); if (this.markedItem.disabled) { this._stepToItem(steps); } } /** * @param {?} items * @param {?} prop * @return {?} */ _groupBy(items, prop) { /** @type {?} */ const isFn = isFunction(this._ngSelect.groupBy); /** @type {?} */ const groups = new Map(); for (const item of items) { /** @type {?} */ let key = isFn ? (/** @type {?} */ (prop)).apply(this, [item.value]) : item.value[/** @type {?} */ (prop)]; key = isDefined(key) ? key : undefined; /** @type {?} */ const group = groups.get(key); if (group) { group.push(item); } else { groups.set(key, [item]); } } return groups; } /** * @param {?} groups * @return {?} */ _flatten(groups) { /** @type {?} */ const isFn = isFunction(this._ngSelect.groupBy); /** @type {?} */ const items = []; /** @type {?} */ const withoutGroup = groups.get(undefined) || []; items.push(...withoutGroup); /** @type {?} */ let i = withoutGroup.length; for (const key of Array.from(groups.keys())) { if (!isDefined(key)) { continue; } /** @type {?} */ const parent = { label: key, children: undefined, parent: null, index: i++, disabled: !this._ngSelect.selectableGroup, htmlId: newId() }; /** @type {?} */ const groupKey = isFn ? this._ngSelect.bindLabel : this._ngSelect.groupBy; parent.value = { [groupKey]: key }; items.push(parent); /** @type {?} */ const children = groups.get(key).map(x => { x.parent = parent; x.children = undefined; x.index = i++; return x; }); parent.children = children; items.push(...children); } return items; } } if (false) { /** @type {?} */ ItemsList.prototype._groups; /** @type {?} */ ItemsList.prototype._items; /** @type {?} */ ItemsList.prototype._filteredItems; /** @type {?} */ ItemsList.prototype._markedIndex; /** @type {?} */ ItemsList.prototype._ngSelect; /** @type {?} */ ItemsList.prototype._selectionModel; } //# 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|| this.maxItemsSelected) {\n            return;\n        }\n        const multiple = this._ngSelect.multiple;\n        if (!multiple) {\n            this.clearSelected();\n        }\n\n        this._selectionModel.select(item, multiple, this._ngSelect.selectableGroupAsModel);\n        if (this._ngSelect.hideSelected && multiple) {\n            this._hideSelected(item);\n        }\n    }\n\n    unselect(item: NgOption) {\n        if (!item.selected) {\n            return;\n        }\n        this._selectionModel.unselect(item, this._ngSelect.multiple);\n        if (this._ngSelect.hideSelected && isDefined(item.index) && this._ngSelect.multiple) {\n            this._showSelected(item);\n        }\n    }\n\n    findItem(value: any): NgOption {\n        let findBy: (item: NgOption) => boolean;\n        if (this._ngSelect.compareWith) {\n            findBy = item => this._ngSelect.compareWith(item.value, value)\n        } else if (this._ngSelect.bindValue) {\n            findBy = item => !item.children && this.resolveNested(item.value, this._ngSelect.bindValue) === value\n        } else {\n            findBy = item => item.value === value ||\n                !item.children && item.label && item.label === this.resolveNested(value, this._ngSelect.bindLabel)\n        }\n        return this._items.find(item => findBy(item));\n    }\n\n    addItem(item: any) {\n        const option = this.mapItem(item, this._items.length);\n        this._items.push(option);\n        this._filteredItems.push(option);\n        return option;\n    }\n\n    clearSelected() {\n        this._selectionModel.clear();\n        this._items.forEach((item) => {\n            item.selected = false;\n            item.marked = false;\n        });\n        if (this._ngSelect.hideSelected) {\n            this.resetFilteredItems();\n        }\n    }\n\n    findByLabel(term: string) {\n        term = searchHelper.stripSpecialChars(term).toLocaleLowerCase();\n        return this.filteredItems.find(item => {\n   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searchItem)) {\n                    matchedItems.push(item);\n                }\n            }\n            if (matchedItems.length > 0) {\n                const [last] = matchedItems.slice(-1);\n                if (last.parent) {\n                    const head = this._items.find(x => x === last.parent);\n                    this._filteredItems.push(head);\n                }\n                this._filteredItems.push(...matchedItems);\n            }\n        }\n    }\n\n    resetFilteredItems() {\n        if (this._filteredItems.length === this._items.length) {\n            return;\n        }\n\n        if (this._ngSelect.hideSelected && this.selectedItems.length > 0) {\n            this._filteredItems = this._items.filter(x => !x.selected);\n        } else {\n            this._filteredItems = this._items;\n        }\n    }\n\n    unmarkItem() {\n        this._markedIndex = -1;\n    }\n\n    markNextItem() {\n        this._stepToItem(+1);\n    }\n\n    markPreviousItem() {\n        this._stepToItem(-1);\n    }\n\n    markItem(item: NgOption) {\n        this._markedIndex = this._filteredItems.indexOf(item);\n    }\n\n    markSelectedOrDefault(markDefault?: boolean) {\n        if (this._filteredItems.length === 0) {\n            return;\n        }\n        const indexOfLastSelected = this._ngSelect.hideSelected ? -1 : this._filteredItems.indexOf(this.lastSelectedItem);\n        if (this.lastSelectedItem && indexOfLastSelected > -1) {\n            this._markedIndex = indexOfLastSelected;\n        } else {\n            this._markedIndex = markDefault ? this.filteredItems.findIndex(x => !x.disabled) : -1;\n        }\n    }\n\n    resolveNested(option: any, key: string): any {\n        if (!isObject(option)) {\n            return option;\n        }\n        if (key.indexOf('.') === -1) {\n            return option[key];\n        } else {\n            let keys: string[] = key.split('.');\n            let value = option;\n            for (let i = 0, len = keys.length; i < len; ++i) {\n                if (value == null) {\n                    return null;\n                }\n                value = value[keys[i]];\n            }\n            return value;\n        }\n    }\n\n    mapItem(item: any, index: number): NgOption {\n        const label = isDefined(item.$ngOptionLabel) ? item.$ngOptionLabel : this.resolveNested(item, this._ngSelect.bindLabel);\n        const value = isDefined(item.$ngOptionValue) ? item.$ngOptionValue : item;\n        return {\n            index: index,\n            label: isDefined(label) ? label.toString() : '',\n            value: value,\n            disabled: item.disabled,\n            htmlId: newId()\n        };\n    }\n\n    mapSelectedItems() {\n        this.selectedItems.forEach((selected, i) => {\n            const value = this._ngSelect.bindValue ? selected.value[this._ngSelect.bindValue] : selected.value;\n            const item = this.findItem(value);\n            if (item && selected !== item) {\n                item.selected = true;\n                this.selectedItems[i] = item;\n            }\n        });\n\n        if (this._ngSelect.hideSelected) {\n            this._filteredItems = this.filteredItems.filter(x => this.selectedItems.indexOf(x) === -1);\n        }\n    }\n\n    private _showSelected(item: NgOption) {\n        this._filteredItems.push(item);\n        if (item.parent) {\n            const parent = item.parent;\n            const parentExists = this._filteredItems.find(x => x === parent);\n            if (!parentExists) {\n                this._filteredItems.push(parent);\n            }\n        } else if (item.children) {\n            for (const child of item.children) {\n                child.selected = false;\n                this._filteredItems.push(child);\n            }\n        }\n        this._filteredItems = [...this._filteredItems.sort((a, b) => (a.index - b.index))];\n    }\n\n    private _hideSelected(item: NgOption) {\n        this._filteredItems = this._filteredItems.filter(x => x !== item);\n        if (item.parent) {\n            const children = item.parent.children;\n            if (children.every(x => x.selected)) {\n                this._filteredItems = this._filteredItems.filter(x => x !== item.parent);\n            }\n        } else if (item.children) {\n            this._filteredItems = this.filteredItems.filter(x => x.parent !== item);\n        }\n    }\n\n    private _defaultSearchFn(search: string, opt: NgOption) {\n        const label = searchHelper.stripSpecialChars(opt.label).toLocaleLowerCase();\n        return label.indexOf(search) > -1\n    }\n\n    private _getNextItemIndex(steps: number) {\n        if (steps > 0) {\n            return (this._markedIndex === this._filteredItems.length - 1) ? 0 : (this._markedIndex + 1);\n        }\n        return (this._markedIndex <= 0) ? (this._filteredItems.length - 1) : (this._markedIndex - 1);\n    }\n\n    private _stepToItem(steps: number) {\n        if (this._filteredItems.length === 0 || this._filteredItems.every(x => x.disabled)) {\n            return;\n        }\n\n        this._markedIndex = this._getNextItemIndex(steps);\n        if (this.markedItem.disabled) {\n            this._stepToItem(steps);\n        }\n    }\n\n    private _groupBy(items: NgOption[], prop: string | Function): OptionGroups {\n        const isFn = isFunction(this._ngSelect.groupBy);\n        const groups = new Map<string, NgOption[]>();\n        for (const item of items) {\n            let key = isFn ? (<Function>prop).apply(this, [item.value]) : item.value[<string>prop];\n            key = isDefined(key) ? key : undefined;\n            const group = groups.get(key);\n            if (group) {\n                group.push(item);\n            } else {\n                groups.set(key, [item]);\n            }\n        }\n        return groups;\n    }\n\n    private _flatten(groups: OptionGroups) {\n        const isFn = isFunction(this._ngSelect.groupBy);\n        const items = [];\n        const withoutGroup = groups.get(undefined) || [];\n        items.push(...withoutGroup);\n        let i = withoutGroup.length;\n        for (const key of Array.from(groups.keys())) {\n            if (!isDefined(key)) {\n                continue;\n            }\n            const parent: NgOption = {\n                label: key,\n                children: undefined,\n                parent: null,\n                index: i++,\n                disabled: !this._ngSelect.selectableGroup,\n                htmlId: newId()\n            };\n            const groupKey = isFn ? this._ngSelect.bindLabel : this._ngSelect.groupBy;\n            parent.value = { [groupKey]: key };\n            items.push(parent);\n\n            const children = groups.get(key).map(x => {\n                x.parent = parent;\n                x.children = undefined;\n                x.index = i++;\n                return x;\n            });\n            parent.children = children;\n            items.push(...children);\n        }\n        return items;\n    }\n}\n"]}