@taiga-ui/kit
Version:
Taiga UI Angular main components kit
139 lines • 22 kB
JavaScript
import { computed, Directive, effect, inject, Input, isSignal, signal, untracked, } from '@angular/core';
import { tuiAsControl, TuiControl } from '@taiga-ui/cdk/classes';
import { TUI_ALLOW_SIGNAL_WRITES, TUI_STRICT_MATCHER } from '@taiga-ui/cdk/constants';
import { tuiAsOptionContent, } from '@taiga-ui/core/components/data-list';
import { tuiAsTextfieldAccessor, tuiInjectAuxiliary, TuiTextfieldComponent, TuiTextfieldDirective, TuiWithTextfield, } from '@taiga-ui/core/components/textfield';
import { TuiDropdownDirective, tuiDropdownEnabled, tuiDropdownOpen, } from '@taiga-ui/core/directives/dropdown';
import { TUI_ITEMS_HANDLERS, } from '@taiga-ui/core/directives/items-handlers';
import { TuiSelectOption } from '@taiga-ui/kit/components/select';
import * as i0 from "@angular/core";
import * as i1 from "@taiga-ui/core/components/textfield";
class TuiComboBox extends TuiControl {
constructor() {
super(...arguments);
this.host = inject(TuiTextfieldComponent);
this.textfield = inject(TuiTextfieldDirective);
this.open = tuiDropdownOpen();
this.dropdownEnabled = tuiDropdownEnabled(this.interactive);
this.dropdown = inject(TuiDropdownDirective);
this.handlers = inject(TUI_ITEMS_HANDLERS);
this.matcher = signal(TUI_STRICT_MATCHER);
this.strict = signal(true);
this.datalist = tuiInjectAuxiliary((x) => x !== this && 'options' in x && isSignal(x.options));
this.options = computed(() => this.datalist()
?.options?.() // TODO(v5): remove optional call `?.()`
.filter((x) => !this.handlers.disabledItemHandler()(x)) ?? []);
this.nonStrictControlEffect = effect(() => {
if (!this.options().length &&
!this.strict() &&
this.stringify(this.value()) !== this.textfield.value()) {
this.onChange(this.textfield.value() || null);
}
}, TUI_ALLOW_SIGNAL_WRITES);
this.matchingEffect = effect(() => {
const options = this.options();
const matcher = this.matcher();
if (!options.length || !matcher) {
return;
}
const textfieldValue = this.textfield.value();
const selectedOption = options.find((x) => matcher(x, textfieldValue, this.handlers.stringify()));
const value = untracked(() => this.value());
const unchanged = this.stringify(value) === textfieldValue;
const fallback = this.strict() || !textfieldValue ? null : textfieldValue;
this.onChange(selectedOption ??
/**
* Don't clear already not-null form control value on new `this.options()` array.
* Otherwise, `ComboBox` becomes incompatible with virtual scroll
* (which displays large lists of elements by only rendering the items that fit on-screen).
* Users can still able to patch form value with `null` on new items if they wish the such behavior.
*/
(unchanged ? value : fallback));
}, TUI_ALLOW_SIGNAL_WRITES);
this.newValueEffect = effect(() => {
const stringified = this.stringify(this.value());
this.textfield.value.update((x) => stringified || x);
}, TUI_ALLOW_SIGNAL_WRITES);
this.blurEffect = effect(() => {
const incomplete = untracked(() => this.strict() && this.value() === null);
if (!this.host.focused() && incomplete) {
this.textfield.value.set('');
}
}, TUI_ALLOW_SIGNAL_WRITES);
}
// TODO(v5): use signal input
set strictSetter(x) {
this.strict.set(x);
}
// TODO(v5): use signal input
set matcherSetter(x) {
this.matcher.set(x);
}
setValue(value) {
this.textfield.setValue(value);
this.onChange(value);
if (!value) {
this.toggleDropdown(true);
}
}
writeValue(value) {
const reset = this.control.pristine && this.control.untouched && !value;
const changed = untracked(() => value !== this.value());
if (changed || reset) {
super.writeValue(value);
untracked(() => this.textfield.value.set(this.stringify(value)));
}
}
toggleDropdown(open = !this.open()) {
if (this.dropdownEnabled() && this.dropdown._content()) {
this.open.set(open);
}
}
keydownEnter(event) {
if (!this.open()) {
return;
}
event.preventDefault();
const options = this.options();
if (options.length === 1 && options[0]) {
this.setValue(options[0]);
this.toggleDropdown(false);
}
}
stringify(value) {
return value != null ? this.handlers.stringify()(value) : '';
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiComboBox, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: TuiComboBox, isStandalone: true, selector: "input[tuiComboBox]", inputs: { strictSetter: ["strict", "strictSetter"], matcherSetter: ["matcher", "matcherSetter"] }, host: { listeners: { "click": "toggleDropdown()", "input": "toggleDropdown(true)", "keydown.enter": "keydownEnter($event)" }, properties: { "disabled": "disabled()" } }, providers: [
tuiAsOptionContent(TuiSelectOption),
tuiAsTextfieldAccessor(TuiComboBox),
tuiAsControl(TuiComboBox),
], usesInheritance: true, hostDirectives: [{ directive: i1.TuiWithTextfield }], ngImport: i0 }); }
}
export { TuiComboBox };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiComboBox, decorators: [{
type: Directive,
args: [{
standalone: true,
selector: 'input[tuiComboBox]',
providers: [
tuiAsOptionContent(TuiSelectOption),
tuiAsTextfieldAccessor(TuiComboBox),
tuiAsControl(TuiComboBox),
],
hostDirectives: [TuiWithTextfield],
host: {
'[disabled]': 'disabled()',
'(click)': 'toggleDropdown()',
'(input)': 'toggleDropdown(true)',
'(keydown.enter)': 'keydownEnter($event)',
},
}]
}], propDecorators: { strictSetter: [{
type: Input,
args: ['strict']
}], matcherSetter: [{
type: Input,
args: ['matcher']
}] } });
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{\n    computed,\n    Directive,\n    effect,\n    inject,\n    Input,\n    isSignal,\n    signal,\n    untracked,\n} from '@angular/core';\nimport {tuiAsControl, TuiControl} from '@taiga-ui/cdk/classes';\nimport {TUI_ALLOW_SIGNAL_WRITES, TUI_STRICT_MATCHER} from '@taiga-ui/cdk/constants';\nimport {type TuiStringMatcher} from '@taiga-ui/cdk/types';\nimport {\n    tuiAsOptionContent,\n    type TuiDataListAccessor,\n} from '@taiga-ui/core/components/data-list';\nimport {\n    tuiAsTextfieldAccessor,\n    tuiInjectAuxiliary,\n    type TuiTextfieldAccessor,\n    TuiTextfieldComponent,\n    TuiTextfieldDirective,\n    TuiWithTextfield,\n} from '@taiga-ui/core/components/textfield';\nimport {\n    TuiDropdownDirective,\n    tuiDropdownEnabled,\n    tuiDropdownOpen,\n} from '@taiga-ui/core/directives/dropdown';\nimport {\n    TUI_ITEMS_HANDLERS,\n    type TuiItemsHandlers,\n} from '@taiga-ui/core/directives/items-handlers';\nimport {TuiSelectOption} from '@taiga-ui/kit/components/select';\n\n@Directive({\n    standalone: true,\n    selector: 'input[tuiComboBox]',\n    providers: [\n        tuiAsOptionContent(TuiSelectOption),\n        tuiAsTextfieldAccessor(TuiComboBox),\n        tuiAsControl(TuiComboBox),\n    ],\n    hostDirectives: [TuiWithTextfield],\n    host: {\n        '[disabled]': 'disabled()',\n        '(click)': 'toggleDropdown()',\n        '(input)': 'toggleDropdown(true)',\n        '(keydown.enter)': 'keydownEnter($event)',\n    },\n})\nexport class TuiComboBox<T>\n    extends TuiControl<T | string | null>\n    implements TuiTextfieldAccessor<T>\n{\n    private readonly host: TuiTextfieldComponent<T> = inject(TuiTextfieldComponent);\n    private readonly textfield: TuiTextfieldDirective<T> = inject(TuiTextfieldDirective);\n    private readonly open = tuiDropdownOpen();\n    private readonly dropdownEnabled = tuiDropdownEnabled(this.interactive);\n    private readonly dropdown = inject(TuiDropdownDirective);\n    private readonly handlers: TuiItemsHandlers<T | string> = inject(TUI_ITEMS_HANDLERS);\n\n    private readonly matcher = signal<TuiStringMatcher<T> | null>(TUI_STRICT_MATCHER);\n    private readonly strict = signal(true);\n    private readonly datalist = tuiInjectAuxiliary<TuiDataListAccessor<T>>(\n        (x) => x !== this && 'options' in x && isSignal(x.options),\n    );\n\n    private readonly options = computed(\n        () =>\n            this.datalist()\n                ?.options?.() // TODO(v5): remove optional call `?.()`\n                .filter((x) => !this.handlers.disabledItemHandler()(x)) ?? [],\n    );\n\n    protected readonly nonStrictControlEffect = effect(() => {\n        if (\n            !this.options().length &&\n            !this.strict() &&\n            this.stringify(this.value()) !== this.textfield.value()\n        ) {\n            this.onChange(this.textfield.value() || null);\n        }\n    }, TUI_ALLOW_SIGNAL_WRITES);\n\n    protected readonly matchingEffect = effect(() => {\n        const options = this.options();\n        const matcher = this.matcher();\n\n        if (!options.length || !matcher) {\n            return;\n        }\n\n        const textfieldValue = this.textfield.value();\n        const selectedOption = options.find((x) =>\n            matcher(x, textfieldValue, this.handlers.stringify()),\n        );\n        const value = untracked(() => this.value());\n        const unchanged = this.stringify(value) === textfieldValue;\n        const fallback = this.strict() || !textfieldValue ? null : textfieldValue;\n\n        this.onChange(\n            selectedOption ??\n                /**\n                 * Don't clear already not-null form control value on new `this.options()` array.\n                 * Otherwise, `ComboBox` becomes incompatible with virtual scroll\n                 * (which displays large lists of elements by only rendering the items that fit on-screen).\n                 * Users can still able to patch form value with `null` on new items if they wish the such behavior.\n                 */\n                (unchanged ? value : fallback),\n        );\n    }, TUI_ALLOW_SIGNAL_WRITES);\n\n    protected readonly newValueEffect = effect(() => {\n        const stringified = this.stringify(this.value());\n\n        this.textfield.value.update((x) => stringified || x);\n    }, TUI_ALLOW_SIGNAL_WRITES);\n\n    protected readonly blurEffect = effect(() => {\n        const incomplete = untracked(() => this.strict() && this.value() === null);\n\n        if (!this.host.focused() && incomplete) {\n            this.textfield.value.set('');\n        }\n    }, TUI_ALLOW_SIGNAL_WRITES);\n\n    // TODO(v5): use signal input\n    @Input('strict')\n    public set strictSetter(x: boolean) {\n        this.strict.set(x);\n    }\n\n    // TODO(v5): use signal input\n    @Input('matcher')\n    public set matcherSetter(x: TuiStringMatcher<T> | null) {\n        this.matcher.set(x);\n    }\n\n    public setValue(value: T | null): void {\n        this.textfield.setValue(value);\n        this.onChange(value);\n\n        if (!value) {\n            this.toggleDropdown(true);\n        }\n    }\n\n    public override writeValue(value: T | string | null): void {\n        const reset = this.control.pristine && this.control.untouched && !value;\n        const changed = untracked(() => value !== this.value());\n\n        if (changed || reset) {\n            super.writeValue(value);\n            untracked(() => this.textfield.value.set(this.stringify(value)));\n        }\n    }\n\n    protected toggleDropdown(open = !this.open()): void {\n        if (this.dropdownEnabled() && this.dropdown._content()) {\n            this.open.set(open);\n        }\n    }\n\n    protected keydownEnter(event: KeyboardEvent): void {\n        if (!this.open()) {\n            return;\n        }\n\n        event.preventDefault();\n\n        const options = this.options();\n\n        if (options.length === 1 && options[0]) {\n            this.setValue(options[0]);\n            this.toggleDropdown(false);\n        }\n    }\n\n    private stringify(value?: T | string | null): string {\n        return value != null ? this.handlers.stringify()(value) : '';\n    }\n}\n"]}