source: trip-planner-front/node_modules/@angular/material/fesm2015/input.js@ eed0bf8

import { CdkTextareaAutosize, AutofillMonitor, TextFieldModule } from '@angular/cdk/text-field';
import { Directive, Input, InjectionToken, ElementRef, Optional, Self, Inject, NgZone, HostListener, NgModule } from '@angular/core';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
import { getSupportedInputTypes, Platform } from '@angular/cdk/platform';
import { NgControl, NgForm, FormGroupDirective } from '@angular/forms';
import { mixinErrorState, ErrorStateMatcher, MatCommonModule } from '@angular/material/core';
import { MatFormFieldControl, MatFormField, MAT_FORM_FIELD, MatFormFieldModule } from '@angular/material/form-field';
import { Subject } from 'rxjs';

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * Directive to automatically resize a textarea to fit its content.
 * @deprecated Use `cdkTextareaAutosize` from `@angular/cdk/text-field` instead.
 * @breaking-change 8.0.0
 */
class MatTextareaAutosize extends CdkTextareaAutosize {
    get matAutosizeMinRows() { return this.minRows; }
    set matAutosizeMinRows(value) { this.minRows = value; }
    get matAutosizeMaxRows() { return this.maxRows; }
    set matAutosizeMaxRows(value) { this.maxRows = value; }
    get matAutosize() { return this.enabled; }
    set matAutosize(value) { this.enabled = value; }
    get matTextareaAutosize() { return this.enabled; }
    set matTextareaAutosize(value) { this.enabled = value; }
}
MatTextareaAutosize.decorators = [
    { type: Directive, args: [{
                selector: 'textarea[mat-autosize], textarea[matTextareaAutosize]',
                exportAs: 'matTextareaAutosize',
                inputs: ['cdkAutosizeMinRows', 'cdkAutosizeMaxRows'],
                host: {
                    'class': 'cdk-textarea-autosize mat-autosize',
                    // Textarea elements that have the directive applied should have a single row by default.
                    // Browsers normally show two rows by default and therefore this limits the minRows binding.
                    'rows': '1',
                },
            },] }
];
MatTextareaAutosize.propDecorators = {
    matAutosizeMinRows: [{ type: Input }],
    matAutosizeMaxRows: [{ type: Input }],
    matAutosize: [{ type: Input, args: ['mat-autosize',] }],
    matTextareaAutosize: [{ type: Input }]
};

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/** @docs-private */
function getMatInputUnsupportedTypeError(type) {
    return Error(`Input type "${type}" isn't supported by matInput.`);
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * This token is used to inject the object whose value should be set into `MatInput`. If none is
 * provided, the native `HTMLInputElement` is used. Directives like `MatDatepickerInput` can provide
 * themselves for this token, in order to make `MatInput` delegate the getting and setting of the
 * value to them.
 */
const MAT_INPUT_VALUE_ACCESSOR = new InjectionToken('MAT_INPUT_VALUE_ACCESSOR');

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
// Invalid input type. Using one of these will throw an MatInputUnsupportedTypeError.
const MAT_INPUT_INVALID_TYPES = [
    'button',
    'checkbox',
    'file',
    'hidden',
    'image',
    'radio',
    'range',
    'reset',
    'submit'
];
let nextUniqueId = 0;
// Boilerplate for applying mixins to MatInput.
/** @docs-private */
const _MatInputBase = mixinErrorState(class {
    constructor(_defaultErrorStateMatcher, _parentForm, _parentFormGroup, 
    /** @docs-private */
    ngControl) {
        this._defaultErrorStateMatcher = _defaultErrorStateMatcher;
        this._parentForm = _parentForm;
        this._parentFormGroup = _parentFormGroup;
        this.ngControl = ngControl;
    }
});
/** Directive that allows a native input to work inside a `MatFormField`. */
class MatInput extends _MatInputBase {
    constructor(_elementRef, _platform, ngControl, _parentForm, _parentFormGroup, _defaultErrorStateMatcher, inputValueAccessor, _autofillMonitor, ngZone, 
    // TODO: Remove this once the legacy appearance has been removed. We only need
    // to inject the form-field for determining whether the placeholder has been promoted.
    _formField) {
        super(_defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl);
        this._elementRef = _elementRef;
        this._platform = _platform;
        this._autofillMonitor = _autofillMonitor;
        this._formField = _formField;
        this._uid = `mat-input-${nextUniqueId++}`;
        /**
         * Implemented as part of MatFormFieldControl.
         * @docs-private
         */
        this.focused = false;
        /**
         * Implemented as part of MatFormFieldControl.
         * @docs-private
         */
        this.stateChanges = new Subject();
        /**
         * Implemented as part of MatFormFieldControl.
         * @docs-private
         */
        this.controlType = 'mat-input';
        /**
         * Implemented as part of MatFormFieldControl.
         * @docs-private
         */
        this.autofilled = false;
        this._disabled = false;
        this._required = false;
        this._type = 'text';
        this._readonly = false;
        this._neverEmptyInputTypes = [
            'date',
            'datetime',
            'datetime-local',
            'month',
            'time',
            'week'
        ].filter(t => getSupportedInputTypes().has(t));
        const element = this._elementRef.nativeElement;
        const nodeName = element.nodeName.toLowerCase();
        // If no input value accessor was explicitly specified, use the element as the input value
        // accessor.
        this._inputValueAccessor = inputValueAccessor || element;
        this._previousNativeValue = this.value;
        // Force setter to be called in case id was not specified.
        this.id = this.id;
        // On some versions of iOS the caret gets stuck in the wrong place when holding down the delete
        // key. In order to get around this we need to "jiggle" the caret loose. Since this bug only
        // exists on iOS, we only bother to install the listener on iOS.
        if (_platform.IOS) {
            ngZone.runOutsideAngular(() => {
                _elementRef.nativeElement.addEventListener('keyup', (event) => {
                    const el = event.target;
                    // Note: We specifically check for 0, rather than `!el.selectionStart`, because the two
                    // indicate different things. If the value is 0, it means that the caret is at the start
                    // of the input, whereas a value of `null` means that the input doesn't support
                    // manipulating the selection range. Inputs that don't support setting the selection range
                    // will throw an error so we want to avoid calling `setSelectionRange` on them. See:
                    // https://html.spec.whatwg.org/multipage/input.html#do-not-apply
                    if (!el.value && el.selectionStart === 0 && el.selectionEnd === 0) {
                        // Note: Just setting `0, 0` doesn't fix the issue. Setting
                        // `1, 1` fixes it for the first time that you type text and
                        // then hold delete. Toggling to `1, 1` and then back to
                        // `0, 0` seems to completely fix it.
                        el.setSelectionRange(1, 1);
                        el.setSelectionRange(0, 0);
                    }
                });
            });
        }
        this._isServer = !this._platform.isBrowser;
        this._isNativeSelect = nodeName === 'select';
        this._isTextarea = nodeName === 'textarea';
        this._isInFormField = !!_formField;
        if (this._isNativeSelect) {
            this.controlType = element.multiple ? 'mat-native-select-multiple' :
                'mat-native-select';
        }
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    get disabled() {
        if (this.ngControl && this.ngControl.disabled !== null) {
            return this.ngControl.disabled;
        }
        return this._disabled;
    }
    set disabled(value) {
        this._disabled = coerceBooleanProperty(value);
        // Browsers may not fire the blur event if the input is disabled too quickly.
        // Reset from here to ensure that the element doesn't become stuck.
        if (this.focused) {
            this.focused = false;
            this.stateChanges.next();
        }
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    get id() { return this._id; }
    set id(value) { this._id = value || this._uid; }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    get required() { return this._required; }
    set required(value) { this._required = coerceBooleanProperty(value); }
    /** Input type of the element. */
    get type() { return this._type; }
    set type(value) {
        this._type = value || 'text';
        this._validateType();
        // When using Angular inputs, developers are no longer able to set the properties on the native
        // input element. To ensure that bindings for `type` work, we need to sync the setter
        // with the native property. Textarea elements don't support the type property or attribute.
        if (!this._isTextarea && getSupportedInputTypes().has(this._type)) {
            this._elementRef.nativeElement.type = this._type;
        }
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    get value() { return this._inputValueAccessor.value; }
    set value(value) {
        if (value !== this.value) {
            this._inputValueAccessor.value = value;
            this.stateChanges.next();
        }
    }
    /** Whether the element is readonly. */
    get readonly() { return this._readonly; }
    set readonly(value) { this._readonly = coerceBooleanProperty(value); }
    ngAfterViewInit() {
        if (this._platform.isBrowser) {
            this._autofillMonitor.monitor(this._elementRef.nativeElement).subscribe(event => {
                this.autofilled = event.isAutofilled;
                this.stateChanges.next();
            });
        }
    }
    ngOnChanges() {
        this.stateChanges.next();
    }
    ngOnDestroy() {
        this.stateChanges.complete();
        if (this._platform.isBrowser) {
            this._autofillMonitor.stopMonitoring(this._elementRef.nativeElement);
        }
    }
    ngDoCheck() {
        if (this.ngControl) {
            // We need to re-evaluate this on every change detection cycle, because there are some
            // error triggers that we can't subscribe to (e.g. parent form submissions). This means
            // that whatever logic is in here has to be super lean or we risk destroying the performance.
            this.updateErrorState();
        }
        // We need to dirty-check the native element's value, because there are some cases where
        // we won't be notified when it changes (e.g. the consumer isn't using forms or they're
        // updating the value using `emitEvent: false`).
        this._dirtyCheckNativeValue();
        // We need to dirty-check and set the placeholder attribute ourselves, because whether it's
        // present or not depends on a query which is prone to "changed after checked" errors.
        this._dirtyCheckPlaceholder();
    }
    /** Focuses the input. */
    focus(options) {
        this._elementRef.nativeElement.focus(options);
    }
    // We have to use a `HostListener` here in order to support both Ivy and ViewEngine.
    // In Ivy the `host` bindings will be merged when this class is extended, whereas in
    // ViewEngine they're overwritten.
    // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.
    /** Callback for the cases where the focused state of the input changes. */
    // tslint:disable:no-host-decorator-in-concrete
    // tslint:enable:no-host-decorator-in-concrete
    _focusChanged(isFocused) {
        if (isFocused !== this.focused) {
            this.focused = isFocused;
            this.stateChanges.next();
        }
    }
    // We have to use a `HostListener` here in order to support both Ivy and ViewEngine.
    // In Ivy the `host` bindings will be merged when this class is extended, whereas in
    // ViewEngine they're overwritten.
    // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.
    // tslint:disable-next-line:no-host-decorator-in-concrete
    _onInput() {
        // This is a noop function and is used to let Angular know whenever the value changes.
        // Angular will run a new change detection each time the `input` event has been dispatched.
        // It's necessary that Angular recognizes the value change, because when floatingLabel
        // is set to false and Angular forms aren't used, the placeholder won't recognize the
        // value changes and will not disappear.
        // Listening to the input event wouldn't be necessary when the input is using the
        // FormsModule or ReactiveFormsModule, because Angular forms also listens to input events.
    }
    /** Does some manual dirty checking on the native input `placeholder` attribute. */
    _dirtyCheckPlaceholder() {
        var _a, _b;
        // If we're hiding the native placeholder, it should also be cleared from the DOM, otherwise
        // screen readers will read it out twice: once from the label and once from the attribute.
        // TODO: can be removed once we get rid of the `legacy` style for the form field, because it's
        // the only one that supports promoting the placeholder to a label.
        const placeholder = ((_b = (_a = this._formField) === null || _a === void 0 ? void 0 : _a._hideControlPlaceholder) === null || _b === void 0 ? void 0 : _b.call(_a)) ? null : this.placeholder;
        if (placeholder !== this._previousPlaceholder) {
            const element = this._elementRef.nativeElement;
            this._previousPlaceholder = placeholder;
            placeholder ?
                element.setAttribute('placeholder', placeholder) : element.removeAttribute('placeholder');
        }
    }
    /** Does some manual dirty checking on the native input `value` property. */
    _dirtyCheckNativeValue() {
        const newValue = this._elementRef.nativeElement.value;
        if (this._previousNativeValue !== newValue) {
            this._previousNativeValue = newValue;
            this.stateChanges.next();
        }
    }
    /** Make sure the input is a supported type. */
    _validateType() {
        if (MAT_INPUT_INVALID_TYPES.indexOf(this._type) > -1 &&
            (typeof ngDevMode === 'undefined' || ngDevMode)) {
            throw getMatInputUnsupportedTypeError(this._type);
        }
    }
    /** Checks whether the input type is one of the types that are never empty. */
    _isNeverEmpty() {
        return this._neverEmptyInputTypes.indexOf(this._type) > -1;
    }
    /** Checks whether the input is invalid based on the native validation. */
    _isBadInput() {
        // The `validity` property won't be present on platform-server.
        let validity = this._elementRef.nativeElement.validity;
        return validity && validity.badInput;
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    get empty() {
        return !this._isNeverEmpty() && !this._elementRef.nativeElement.value && !this._isBadInput() &&
            !this.autofilled;
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    get shouldLabelFloat() {
        if (this._isNativeSelect) {
            // For a single-selection `<select>`, the label should float when the selected option has
            // a non-empty display value. For a `<select multiple>`, the label *always* floats to avoid
            // overlapping the label with the options.
            const selectElement = this._elementRef.nativeElement;
            const firstOption = selectElement.options[0];
            // On most browsers the `selectedIndex` will always be 0, however on IE and Edge it'll be
            // -1 if the `value` is set to something, that isn't in the list of options, at a later point.
            return this.focused || selectElement.multiple || !this.empty ||
                !!(selectElement.selectedIndex > -1 && firstOption && firstOption.label);
        }
        else {
            return this.focused || !this.empty;
        }
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    setDescribedByIds(ids) {
        if (ids.length) {
            this._elementRef.nativeElement.setAttribute('aria-describedby', ids.join(' '));
        }
        else {
            this._elementRef.nativeElement.removeAttribute('aria-describedby');
        }
    }
    /**
     * Implemented as part of MatFormFieldControl.
     * @docs-private
     */
    onContainerClick() {
        // Do not re-focus the input element if the element is already focused. Otherwise it can happen
        // that someone clicks on a time input and the cursor resets to the "hours" field while the
        // "minutes" field was actually clicked. See: https://github.com/angular/components/issues/12849
        if (!this.focused) {
            this.focus();
        }
    }
}
MatInput.decorators = [
    { type: Directive, args: [{
                selector: `input[matInput], textarea[matInput], select[matNativeControl],
      input[matNativeControl], textarea[matNativeControl]`,
                exportAs: 'matInput',
                host: {
                    /**
                     * @breaking-change 8.0.0 remove .mat-form-field-autofill-control in favor of AutofillMonitor.
                     */
                    'class': 'mat-input-element mat-form-field-autofill-control',
                    '[class.mat-input-server]': '_isServer',
                    // Native input properties that are overwritten by Angular inputs need to be synced with
                    // the native input element. Otherwise property bindings for those don't work.
                    '[attr.id]': 'id',
                    // At the time of writing, we have a lot of customer tests that look up the input based on its
                    // placeholder. Since we sometimes omit the placeholder attribute from the DOM to prevent screen
                    // readers from reading it twice, we have to keep it somewhere in the DOM for the lookup.
                    '[attr.data-placeholder]': 'placeholder',
                    '[disabled]': 'disabled',
                    '[required]': 'required',
                    '[attr.readonly]': 'readonly && !_isNativeSelect || null',
                    // Only mark the input as invalid for assistive technology if it has a value since the
                    // state usually overlaps with `aria-required` when the input is empty and can be redundant.
                    '[attr.aria-invalid]': '(empty && required) ? null : errorState',
                    '[attr.aria-required]': 'required',
                },
                providers: [{ provide: MatFormFieldControl, useExisting: MatInput }],
            },] }
];
MatInput.ctorParameters = () => [
    { type: ElementRef },
    { type: Platform },
    { type: NgControl, decorators: [{ type: Optional }, { type: Self }] },
    { type: NgForm, decorators: [{ type: Optional }] },
    { type: FormGroupDirective, decorators: [{ type: Optional }] },
    { type: ErrorStateMatcher },
    { type: undefined, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [MAT_INPUT_VALUE_ACCESSOR,] }] },
    { type: AutofillMonitor },
    { type: NgZone },
    { type: MatFormField, decorators: [{ type: Optional }, { type: Inject, args: [MAT_FORM_FIELD,] }] }
];
MatInput.propDecorators = {
    disabled: [{ type: Input }],
    id: [{ type: Input }],
    placeholder: [{ type: Input }],
    required: [{ type: Input }],
    type: [{ type: Input }],
    errorStateMatcher: [{ type: Input }],
    userAriaDescribedBy: [{ type: Input, args: ['aria-describedby',] }],
    value: [{ type: Input }],
    readonly: [{ type: Input }],
    _focusChanged: [{ type: HostListener, args: ['focus', ['true'],] }, { type: HostListener, args: ['blur', ['false'],] }],
    _onInput: [{ type: HostListener, args: ['input',] }]
};

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
class MatInputModule {
}
MatInputModule.decorators = [
    { type: NgModule, args: [{
                declarations: [MatInput, MatTextareaAutosize],
                imports: [
                    TextFieldModule,
                    MatFormFieldModule,
                    MatCommonModule,
                ],
                exports: [
                    TextFieldModule,
                    // We re-export the `MatFormFieldModule` since `MatInput` will almost always
                    // be used together with `MatFormField`.
                    MatFormFieldModule,
                    MatInput,
                    MatTextareaAutosize,
                ],
                providers: [ErrorStateMatcher],
            },] }
];

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Generated bundle index. Do not edit.
 */

export { MAT_INPUT_VALUE_ACCESSOR, MatInput, MatInputModule, MatTextareaAutosize, getMatInputUnsupportedTypeError };
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