import { DOCUMENT, CommonModule } from '@angular/common';
import { forwardRef, EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, ChangeDetectorRef, Optional, Attribute, NgZone, Inject, Input, Output, ViewChild, NgModule } from '@angular/core';
import { mixinTabIndex, mixinColor, mixinDisabled, MatCommonModule } from '@angular/material/core';
import { FocusMonitor } from '@angular/cdk/a11y';
import { Directionality } from '@angular/cdk/bidi';
import { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';
import { hasModifierKey, DOWN_ARROW, RIGHT_ARROW, UP_ARROW, LEFT_ARROW, HOME, END, PAGE_DOWN, PAGE_UP } from '@angular/cdk/keycodes';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';
import { normalizePassiveListenerOptions } from '@angular/cdk/platform';
import { Subscription } 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
 */
const activeEventOptions = normalizePassiveListenerOptions({ passive: false });
/**
 * Visually, a 30px separation between tick marks looks best. This is very subjective but it is
 * the default separation we chose.
 */
const MIN_AUTO_TICK_SEPARATION = 30;
/** The thumb gap size for a disabled slider. */
const DISABLED_THUMB_GAP = 7;
/** The thumb gap size for a non-active slider at its minimum value. */
const MIN_VALUE_NONACTIVE_THUMB_GAP = 7;
/** The thumb gap size for an active slider at its minimum value. */
const MIN_VALUE_ACTIVE_THUMB_GAP = 10;
/**
 * Provider Expression that allows mat-slider to register as a ControlValueAccessor.
 * This allows it to support [(ngModel)] and [formControl].
 * @docs-private
 */
const MAT_SLIDER_VALUE_ACCESSOR = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef(() => MatSlider),
    multi: true
};
/** A simple change event emitted by the MatSlider component. */
class MatSliderChange {
}
// Boilerplate for applying mixins to MatSlider.
/** @docs-private */
class MatSliderBase {
    constructor(_elementRef) {
        this._elementRef = _elementRef;
    }
}
const _MatSliderMixinBase = mixinTabIndex(mixinColor(mixinDisabled(MatSliderBase), 'accent'));
/**
 * Allows users to select from a range of values by moving the slider thumb. It is similar in
 * behavior to the native `<input type="range">` element.
 */
class MatSlider extends _MatSliderMixinBase {
    constructor(elementRef, _focusMonitor, _changeDetectorRef, _dir, tabIndex, _ngZone, _document, _animationMode) {
        super(elementRef);
        this._focusMonitor = _focusMonitor;
        this._changeDetectorRef = _changeDetectorRef;
        this._dir = _dir;
        this._ngZone = _ngZone;
        this._animationMode = _animationMode;
        this._invert = false;
        this._max = 100;
        this._min = 0;
        this._step = 1;
        this._thumbLabel = false;
        this._tickInterval = 0;
        this._value = null;
        this._vertical = false;
        /** Event emitted when the slider value has changed. */
        this.change = new EventEmitter();
        /** Event emitted when the slider thumb moves. */
        this.input = new EventEmitter();
        /**
         * Emits when the raw value of the slider changes. This is here primarily
         * to facilitate the two-way binding for the `value` input.
         * @docs-private
         */
        this.valueChange = new EventEmitter();
        /** onTouch function registered via registerOnTouch (ControlValueAccessor). */
        this.onTouched = () => { };
        this._percent = 0;
        /**
         * Whether or not the thumb is sliding.
         * Used to determine if there should be a transition for the thumb and fill track.
         */
        this._isSliding = false;
        /**
         * Whether or not the slider is active (clicked or sliding).
         * Used to shrink and grow the thumb as according to the Material Design spec.
         */
        this._isActive = false;
        /** The size of a tick interval as a percentage of the size of the track. */
        this._tickIntervalPercent = 0;
        /** The dimensions of the slider. */
        this._sliderDimensions = null;
        this._controlValueAccessorChangeFn = () => { };
        /** Subscription to the Directionality change EventEmitter. */
        this._dirChangeSubscription = Subscription.EMPTY;
        /** Called when the user has put their pointer down on the slider. */
        this._pointerDown = (event) => {
            // Don't do anything if the slider is disabled or the
            // user is using anything other than the main mouse button.
            if (this.disabled || this._isSliding || (!isTouchEvent(event) && event.button !== 0)) {
                return;
            }
            this._ngZone.run(() => {
                const oldValue = this.value;
                const pointerPosition = getPointerPositionOnPage(event);
                this._isSliding = true;
                this._lastPointerEvent = event;
                event.preventDefault();
                this._focusHostElement();
                this._onMouseenter(); // Simulate mouseenter in case this is a mobile device.
                this._bindGlobalEvents(event);
                this._focusHostElement();
                this._updateValueFromPosition(pointerPosition);
                this._valueOnSlideStart = oldValue;
                // Emit a change and input event if the value changed.
                if (oldValue != this.value) {
                    this._emitInputEvent();
                }
            });
        };
        /**
         * Called when the user has moved their pointer after
         * starting to drag. Bound on the document level.
         */
        this._pointerMove = (event) => {
            if (this._isSliding) {
                // Prevent the slide from selecting anything else.
                event.preventDefault();
                const oldValue = this.value;
                this._lastPointerEvent = event;
                this._updateValueFromPosition(getPointerPositionOnPage(event));
                // Native range elements always emit `input` events when the value changed while sliding.
                if (oldValue != this.value) {
                    this._emitInputEvent();
                }
            }
        };
        /** Called when the user has lifted their pointer. Bound on the document level. */
        this._pointerUp = (event) => {
            if (this._isSliding) {
                event.preventDefault();
                this._removeGlobalEvents();
                this._isSliding = false;
                if (this._valueOnSlideStart != this.value && !this.disabled) {
                    this._emitChangeEvent();
                }
                this._valueOnSlideStart = this._lastPointerEvent = null;
            }
        };
        /** Called when the window has lost focus. */
        this._windowBlur = () => {
            // If the window is blurred while dragging we need to stop dragging because the
            // browser won't dispatch the `mouseup` and `touchend` events anymore.
            if (this._lastPointerEvent) {
                this._pointerUp(this._lastPointerEvent);
            }
        };
        this._document = _document;
        this.tabIndex = parseInt(tabIndex) || 0;
        _ngZone.runOutsideAngular(() => {
            const element = elementRef.nativeElement;
            element.addEventListener('mousedown', this._pointerDown, activeEventOptions);
            element.addEventListener('touchstart', this._pointerDown, activeEventOptions);
        });
    }
    /** Whether the slider is inverted. */
    get invert() { return this._invert; }
    set invert(value) {
        this._invert = coerceBooleanProperty(value);
    }
    /** The maximum value that the slider can have. */
    get max() { return this._max; }
    set max(v) {
        this._max = coerceNumberProperty(v, this._max);
        this._percent = this._calculatePercentage(this._value);
        // Since this also modifies the percentage, we need to let the change detection know.
        this._changeDetectorRef.markForCheck();
    }
    /** The minimum value that the slider can have. */
    get min() { return this._min; }
    set min(v) {
        this._min = coerceNumberProperty(v, this._min);
        // If the value wasn't explicitly set by the user, set it to the min.
        if (this._value === null) {
            this.value = this._min;
        }
        this._percent = this._calculatePercentage(this._value);
        // Since this also modifies the percentage, we need to let the change detection know.
        this._changeDetectorRef.markForCheck();
    }
    /** The values at which the thumb will snap. */
    get step() { return this._step; }
    set step(v) {
        this._step = coerceNumberProperty(v, this._step);
        if (this._step % 1 !== 0) {
            this._roundToDecimal = this._step.toString().split('.').pop().length;
        }
        // Since this could modify the label, we need to notify the change detection.
        this._changeDetectorRef.markForCheck();
    }
    /** Whether or not to show the thumb label. */
    get thumbLabel() { return this._thumbLabel; }
    set thumbLabel(value) { this._thumbLabel = coerceBooleanProperty(value); }
    /**
     * How often to show ticks. Relative to the step so that a tick always appears on a step.
     * Ex: Tick interval of 4 with a step of 3 will draw a tick every 4 steps (every 12 values).
     */
    get tickInterval() { return this._tickInterval; }
    set tickInterval(value) {
        if (value === 'auto') {
            this._tickInterval = 'auto';
        }
        else if (typeof value === 'number' || typeof value === 'string') {
            this._tickInterval = coerceNumberProperty(value, this._tickInterval);
        }
        else {
            this._tickInterval = 0;
        }
    }
    /** Value of the slider. */
    get value() {
        // If the value needs to be read and it is still uninitialized, initialize it to the min.
        if (this._value === null) {
            this.value = this._min;
        }
        return this._value;
    }
    set value(v) {
        if (v !== this._value) {
            let value = coerceNumberProperty(v);
            // While incrementing by a decimal we can end up with values like 33.300000000000004.
            // Truncate it to ensure that it matches the label and to make it easier to work with.
            if (this._roundToDecimal && value !== this.min && value !== this.max) {
                value = parseFloat(value.toFixed(this._roundToDecimal));
            }
            this._value = value;
            this._percent = this._calculatePercentage(this._value);
            // Since this also modifies the percentage, we need to let the change detection know.
            this._changeDetectorRef.markForCheck();
        }
    }
    /** Whether the slider is vertical. */
    get vertical() { return this._vertical; }
    set vertical(value) {
        this._vertical = coerceBooleanProperty(value);
    }
    /** The value to be used for display purposes. */
    get displayValue() {
        if (this.displayWith) {
            // Value is never null but since setters and getters cannot have
            // different types, the value getter is also typed to return null.
            return this.displayWith(this.value);
        }
        // Note that this could be improved further by rounding something like 0.999 to 1 or
        // 0.899 to 0.9, however it is very performance sensitive, because it gets called on
        // every change detection cycle.
        if (this._roundToDecimal && this.value && this.value % 1 !== 0) {
            return this.value.toFixed(this._roundToDecimal);
        }
        return this.value || 0;
    }
    /** set focus to the host element */
    focus(options) {
        this._focusHostElement(options);
    }
    /** blur the host element */
    blur() {
        this._blurHostElement();
    }
    /** The percentage of the slider that coincides with the value. */
    get percent() { return this._clamp(this._percent); }
    /**
     * Whether the axis of the slider is inverted.
     * (i.e. whether moving the thumb in the positive x or y direction decreases the slider's value).
     */
    _shouldInvertAxis() {
        // Standard non-inverted mode for a vertical slider should be dragging the thumb from bottom to
        // top. However from a y-axis standpoint this is inverted.
        return this.vertical ? !this.invert : this.invert;
    }
    /** Whether the slider is at its minimum value. */
    _isMinValue() {
        return this.percent === 0;
    }
    /**
     * The amount of space to leave between the slider thumb and the track fill & track background
     * elements.
     */
    _getThumbGap() {
        if (this.disabled) {
            return DISABLED_THUMB_GAP;
        }
        if (this._isMinValue() && !this.thumbLabel) {
            return this._isActive ? MIN_VALUE_ACTIVE_THUMB_GAP : MIN_VALUE_NONACTIVE_THUMB_GAP;
        }
        return 0;
    }
    /** CSS styles for the track background element. */
    _getTrackBackgroundStyles() {
        const axis = this.vertical ? 'Y' : 'X';
        const scale = this.vertical ? `1, ${1 - this.percent}, 1` : `${1 - this.percent}, 1, 1`;
        const sign = this._shouldInvertMouseCoords() ? '-' : '';
        return {
            // scale3d avoids some rendering issues in Chrome. See #12071.
            transform: `translate${axis}(${sign}${this._getThumbGap()}px) scale3d(${scale})`
        };
    }
    /** CSS styles for the track fill element. */
    _getTrackFillStyles() {
        const percent = this.percent;
        const axis = this.vertical ? 'Y' : 'X';
        const scale = this.vertical ? `1, ${percent}, 1` : `${percent}, 1, 1`;
        const sign = this._shouldInvertMouseCoords() ? '' : '-';
        return {
            // scale3d avoids some rendering issues in Chrome. See #12071.
            transform: `translate${axis}(${sign}${this._getThumbGap()}px) scale3d(${scale})`,
            // iOS Safari has a bug where it won't re-render elements which start of as `scale(0)` until
            // something forces a style recalculation on it. Since we'll end up with `scale(0)` when
            // the value of the slider is 0, we can easily get into this situation. We force a
            // recalculation by changing the element's `display` when it goes from 0 to any other value.
            display: percent === 0 ? 'none' : ''
        };
    }
    /** CSS styles for the ticks container element. */
    _getTicksContainerStyles() {
        let axis = this.vertical ? 'Y' : 'X';
        // For a horizontal slider in RTL languages we push the ticks container off the left edge
        // instead of the right edge to avoid causing a horizontal scrollbar to appear.
        let sign = !this.vertical && this._getDirection() == 'rtl' ? '' : '-';
        let offset = this._tickIntervalPercent / 2 * 100;
        return {
            'transform': `translate${axis}(${sign}${offset}%)`
        };
    }
    /** CSS styles for the ticks element. */
    _getTicksStyles() {
        let tickSize = this._tickIntervalPercent * 100;
        let backgroundSize = this.vertical ? `2px ${tickSize}%` : `${tickSize}% 2px`;
        let axis = this.vertical ? 'Y' : 'X';
        // Depending on the direction we pushed the ticks container, push the ticks the opposite
        // direction to re-center them but clip off the end edge. In RTL languages we need to flip the
        // ticks 180 degrees so we're really cutting off the end edge abd not the start.
        let sign = !this.vertical && this._getDirection() == 'rtl' ? '-' : '';
        let rotate = !this.vertical && this._getDirection() == 'rtl' ? ' rotate(180deg)' : '';
        let styles = {
            'backgroundSize': backgroundSize,
            // Without translateZ ticks sometimes jitter as the slider moves on Chrome & Firefox.
            'transform': `translateZ(0) translate${axis}(${sign}${tickSize / 2}%)${rotate}`
        };
        if (this._isMinValue() && this._getThumbGap()) {
            const shouldInvertAxis = this._shouldInvertAxis();
            let side;
            if (this.vertical) {
                side = shouldInvertAxis ? 'Bottom' : 'Top';
            }
            else {
                side = shouldInvertAxis ? 'Right' : 'Left';
            }
            styles[`padding${side}`] = `${this._getThumbGap()}px`;
        }
        return styles;
    }
    _getThumbContainerStyles() {
        const shouldInvertAxis = this._shouldInvertAxis();
        let axis = this.vertical ? 'Y' : 'X';
        // For a horizontal slider in RTL languages we push the thumb container off the left edge
        // instead of the right edge to avoid causing a horizontal scrollbar to appear.
        let invertOffset = (this._getDirection() == 'rtl' && !this.vertical) ? !shouldInvertAxis : shouldInvertAxis;
        let offset = (invertOffset ? this.percent : 1 - this.percent) * 100;
        return {
            'transform': `translate${axis}(-${offset}%)`
        };
    }
    /**
     * Whether mouse events should be converted to a slider position by calculating their distance
     * from the right or bottom edge of the slider as opposed to the top or left.
     */
    _shouldInvertMouseCoords() {
        const shouldInvertAxis = this._shouldInvertAxis();
        return (this._getDirection() == 'rtl' && !this.vertical) ? !shouldInvertAxis : shouldInvertAxis;
    }
    /** The language direction for this slider element. */
    _getDirection() {
        return (this._dir && this._dir.value == 'rtl') ? 'rtl' : 'ltr';
    }
    ngAfterViewInit() {
        this._focusMonitor
            .monitor(this._elementRef, true)
            .subscribe((origin) => {
            this._isActive = !!origin && origin !== 'keyboard';
            this._changeDetectorRef.detectChanges();
        });
        if (this._dir) {
            this._dirChangeSubscription = this._dir.change.subscribe(() => {
                this._changeDetectorRef.markForCheck();
            });
        }
    }
    ngOnDestroy() {
        const element = this._elementRef.nativeElement;
        element.removeEventListener('mousedown', this._pointerDown, activeEventOptions);
        element.removeEventListener('touchstart', this._pointerDown, activeEventOptions);
        this._lastPointerEvent = null;
        this._removeGlobalEvents();
        this._focusMonitor.stopMonitoring(this._elementRef);
        this._dirChangeSubscription.unsubscribe();
    }
    _onMouseenter() {
        if (this.disabled) {
            return;
        }
        // We save the dimensions of the slider here so we can use them to update the spacing of the
        // ticks and determine where on the slider click and slide events happen.
        this._sliderDimensions = this._getSliderDimensions();
        this._updateTickIntervalPercent();
    }
    _onFocus() {
        // We save the dimensions of the slider here so we can use them to update the spacing of the
        // ticks and determine where on the slider click and slide events happen.
        this._sliderDimensions = this._getSliderDimensions();
        this._updateTickIntervalPercent();
    }
    _onBlur() {
        this.onTouched();
    }
    _onKeydown(event) {
        if (this.disabled || hasModifierKey(event)) {
            return;
        }
        const oldValue = this.value;
        switch (event.keyCode) {
            case PAGE_UP:
                this._increment(10);
                break;
            case PAGE_DOWN:
                this._increment(-10);
                break;
            case END:
                this.value = this.max;
                break;
            case HOME:
                this.value = this.min;
                break;
            case LEFT_ARROW:
                // NOTE: For a sighted user it would make more sense that when they press an arrow key on an
                // inverted slider the thumb moves in that direction. However for a blind user, nothing
                // about the slider indicates that it is inverted. They will expect left to be decrement,
                // regardless of how it appears on the screen. For speakers ofRTL languages, they probably
                // expect left to mean increment. Therefore we flip the meaning of the side arrow keys for
                // RTL. For inverted sliders we prefer a good a11y experience to having it "look right" for
                // sighted users, therefore we do not swap the meaning.
                this._increment(this._getDirection() == 'rtl' ? 1 : -1);
                break;
            case UP_ARROW:
                this._increment(1);
                break;
            case RIGHT_ARROW:
                // See comment on LEFT_ARROW about the conditions under which we flip the meaning.
                this._increment(this._getDirection() == 'rtl' ? -1 : 1);
                break;
            case DOWN_ARROW:
                this._increment(-1);
                break;
            default:
                // Return if the key is not one that we explicitly handle to avoid calling preventDefault on
                // it.
                return;
        }
        if (oldValue != this.value) {
            this._emitInputEvent();
            this._emitChangeEvent();
        }
        this._isSliding = true;
        event.preventDefault();
    }
    _onKeyup() {
        this._isSliding = false;
    }
    /** Use defaultView of injected document if available or fallback to global window reference */
    _getWindow() {
        return this._document.defaultView || window;
    }
    /**
     * Binds our global move and end events. They're bound at the document level and only while
     * dragging so that the user doesn't have to keep their pointer exactly over the slider
     * as they're swiping across the screen.
     */
    _bindGlobalEvents(triggerEvent) {
        // Note that we bind the events to the `document`, because it allows us to capture
        // drag cancel events where the user's pointer is outside the browser window.
        const document = this._document;
        const isTouch = isTouchEvent(triggerEvent);
        const moveEventName = isTouch ? 'touchmove' : 'mousemove';
        const endEventName = isTouch ? 'touchend' : 'mouseup';
        document.addEventListener(moveEventName, this._pointerMove, activeEventOptions);
        document.addEventListener(endEventName, this._pointerUp, activeEventOptions);
        if (isTouch) {
            document.addEventListener('touchcancel', this._pointerUp, activeEventOptions);
        }
        const window = this._getWindow();
        if (typeof window !== 'undefined' && window) {
            window.addEventListener('blur', this._windowBlur);
        }
    }
    /** Removes any global event listeners that we may have added. */
    _removeGlobalEvents() {
        const document = this._document;
        document.removeEventListener('mousemove', this._pointerMove, activeEventOptions);
        document.removeEventListener('mouseup', this._pointerUp, activeEventOptions);
        document.removeEventListener('touchmove', this._pointerMove, activeEventOptions);
        document.removeEventListener('touchend', this._pointerUp, activeEventOptions);
        document.removeEventListener('touchcancel', this._pointerUp, activeEventOptions);
        const window = this._getWindow();
        if (typeof window !== 'undefined' && window) {
            window.removeEventListener('blur', this._windowBlur);
        }
    }
    /** Increments the slider by the given number of steps (negative number decrements). */
    _increment(numSteps) {
        this.value = this._clamp((this.value || 0) + this.step * numSteps, this.min, this.max);
    }
    /** Calculate the new value from the new physical location. The value will always be snapped. */
    _updateValueFromPosition(pos) {
        if (!this._sliderDimensions) {
            return;
        }
        let offset = this.vertical ? this._sliderDimensions.top : this._sliderDimensions.left;
        let size = this.vertical ? this._sliderDimensions.height : this._sliderDimensions.width;
        let posComponent = this.vertical ? pos.y : pos.x;
        // The exact value is calculated from the event and used to find the closest snap value.
        let percent = this._clamp((posComponent - offset) / size);
        if (this._shouldInvertMouseCoords()) {
            percent = 1 - percent;
        }
        // Since the steps may not divide cleanly into the max value, if the user
        // slid to 0 or 100 percent, we jump to the min/max value. This approach
        // is slightly more intuitive than using `Math.ceil` below, because it
        // follows the user's pointer closer.
        if (percent === 0) {
            this.value = this.min;
        }
        else if (percent === 1) {
            this.value = this.max;
        }
        else {
            const exactValue = this._calculateValue(percent);
            // This calculation finds the closest step by finding the closest
            // whole number divisible by the step relative to the min.
            const closestValue = Math.round((exactValue - this.min) / this.step) * this.step + this.min;
            // The value needs to snap to the min and max.
            this.value = this._clamp(closestValue, this.min, this.max);
        }
    }
    /** Emits a change event if the current value is different from the last emitted value. */
    _emitChangeEvent() {
        this._controlValueAccessorChangeFn(this.value);
        this.valueChange.emit(this.value);
        this.change.emit(this._createChangeEvent());
    }
    /** Emits an input event when the current value is different from the last emitted value. */
    _emitInputEvent() {
        this.input.emit(this._createChangeEvent());
    }
    /** Updates the amount of space between ticks as a percentage of the width of the slider. */
    _updateTickIntervalPercent() {
        if (!this.tickInterval || !this._sliderDimensions) {
            return;
        }
        if (this.tickInterval == 'auto') {
            let trackSize = this.vertical ? this._sliderDimensions.height : this._sliderDimensions.width;
            let pixelsPerStep = trackSize * this.step / (this.max - this.min);
            let stepsPerTick = Math.ceil(MIN_AUTO_TICK_SEPARATION / pixelsPerStep);
            let pixelsPerTick = stepsPerTick * this.step;
            this._tickIntervalPercent = pixelsPerTick / trackSize;
        }
        else {
            this._tickIntervalPercent = this.tickInterval * this.step / (this.max - this.min);
        }
    }
    /** Creates a slider change object from the specified value. */
    _createChangeEvent(value = this.value) {
        let event = new MatSliderChange();
        event.source = this;
        event.value = value;
        return event;
    }
    /** Calculates the percentage of the slider that a value is. */
    _calculatePercentage(value) {
        return ((value || 0) - this.min) / (this.max - this.min);
    }
    /** Calculates the value a percentage of the slider corresponds to. */
    _calculateValue(percentage) {
        return this.min + percentage * (this.max - this.min);
    }
    /** Return a number between two numbers. */
    _clamp(value, min = 0, max = 1) {
        return Math.max(min, Math.min(value, max));
    }
    /**
     * Get the bounding client rect of the slider track element.
     * The track is used rather than the native element to ignore the extra space that the thumb can
     * take up.
     */
    _getSliderDimensions() {
        return this._sliderWrapper ? this._sliderWrapper.nativeElement.getBoundingClientRect() : null;
    }
    /**
     * Focuses the native element.
     * Currently only used to allow a blur event to fire but will be used with keyboard input later.
     */
    _focusHostElement(options) {
        this._elementRef.nativeElement.focus(options);
    }
    /** Blurs the native element. */
    _blurHostElement() {
        this._elementRef.nativeElement.blur();
    }
    /**
     * Sets the model value. Implemented as part of ControlValueAccessor.
     * @param value
     */
    writeValue(value) {
        this.value = value;
    }
    /**
     * Registers a callback to be triggered when the value has changed.
     * Implemented as part of ControlValueAccessor.
     * @param fn Callback to be registered.
     */
    registerOnChange(fn) {
        this._controlValueAccessorChangeFn = fn;
    }
    /**
     * Registers a callback to be triggered when the component is touched.
     * Implemented as part of ControlValueAccessor.
     * @param fn Callback to be registered.
     */
    registerOnTouched(fn) {
        this.onTouched = fn;
    }
    /**
     * Sets whether the component should be disabled.
     * Implemented as part of ControlValueAccessor.
     * @param isDisabled
     */
    setDisabledState(isDisabled) {
        this.disabled = isDisabled;
    }
}
MatSlider.decorators = [
    { type: Component, args: [{
                selector: 'mat-slider',
                exportAs: 'matSlider',
                providers: [MAT_SLIDER_VALUE_ACCESSOR],
                host: {
                    '(focus)': '_onFocus()',
                    '(blur)': '_onBlur()',
                    '(keydown)': '_onKeydown($event)',
                    '(keyup)': '_onKeyup()',
                    '(mouseenter)': '_onMouseenter()',
                    // On Safari starting to slide temporarily triggers text selection mode which
                    // show the wrong cursor. We prevent it by stopping the `selectstart` event.
                    '(selectstart)': '$event.preventDefault()',
                    'class': 'mat-slider mat-focus-indicator',
                    'role': 'slider',
                    '[tabIndex]': 'tabIndex',
                    '[attr.aria-disabled]': 'disabled',
                    '[attr.aria-valuemax]': 'max',
                    '[attr.aria-valuemin]': 'min',
                    '[attr.aria-valuenow]': 'value',
                    // NVDA and Jaws appear to announce the `aria-valuenow` by calculating its percentage based
                    // on its value between `aria-valuemin` and `aria-valuemax`. Due to how decimals are handled,
                    // it can cause the slider to read out a very long value like 0.20000068 if the current value
                    // is 0.2 with a min of 0 and max of 1. We work around the issue by setting `aria-valuetext`
                    // to the same value that we set on the slider's thumb which will be truncated.
                    '[attr.aria-valuetext]': 'valueText == null ? displayValue : valueText',
                    '[attr.aria-orientation]': 'vertical ? "vertical" : "horizontal"',
                    '[class.mat-slider-disabled]': 'disabled',
                    '[class.mat-slider-has-ticks]': 'tickInterval',
                    '[class.mat-slider-horizontal]': '!vertical',
                    '[class.mat-slider-axis-inverted]': '_shouldInvertAxis()',
                    // Class binding which is only used by the test harness as there is no other
                    // way for the harness to detect if mouse coordinates need to be inverted.
                    '[class.mat-slider-invert-mouse-coords]': '_shouldInvertMouseCoords()',
                    '[class.mat-slider-sliding]': '_isSliding',
                    '[class.mat-slider-thumb-label-showing]': 'thumbLabel',
                    '[class.mat-slider-vertical]': 'vertical',
                    '[class.mat-slider-min-value]': '_isMinValue()',
                    '[class.mat-slider-hide-last-tick]': 'disabled || _isMinValue() && _getThumbGap() && _shouldInvertAxis()',
                    '[class._mat-animation-noopable]': '_animationMode === "NoopAnimations"',
                },
                template: "<div class=\"mat-slider-wrapper\" #sliderWrapper>\n  <div class=\"mat-slider-track-wrapper\">\n    <div class=\"mat-slider-track-background\" [ngStyle]=\"_getTrackBackgroundStyles()\"></div>\n    <div class=\"mat-slider-track-fill\" [ngStyle]=\"_getTrackFillStyles()\"></div>\n  </div>\n  <div class=\"mat-slider-ticks-container\" [ngStyle]=\"_getTicksContainerStyles()\">\n    <div class=\"mat-slider-ticks\" [ngStyle]=\"_getTicksStyles()\"></div>\n  </div>\n  <div class=\"mat-slider-thumb-container\" [ngStyle]=\"_getThumbContainerStyles()\">\n    <div class=\"mat-slider-focus-ring\"></div>\n    <div class=\"mat-slider-thumb\"></div>\n    <div class=\"mat-slider-thumb-label\">\n      <span class=\"mat-slider-thumb-label-text\">{{displayValue}}</span>\n    </div>\n  </div>\n</div>\n",
                inputs: ['disabled', 'color', 'tabIndex'],
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
                styles: [".mat-slider{display:inline-block;position:relative;box-sizing:border-box;padding:8px;outline:none;vertical-align:middle}.mat-slider:not(.mat-slider-disabled):active,.mat-slider.mat-slider-sliding:not(.mat-slider-disabled){cursor:-webkit-grabbing;cursor:grabbing}.mat-slider-wrapper{position:absolute;-webkit-print-color-adjust:exact;color-adjust:exact}.mat-slider-track-wrapper{position:absolute;top:0;left:0;overflow:hidden}.mat-slider-track-fill{position:absolute;transform-origin:0 0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-track-background{position:absolute;transform-origin:100% 100%;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-ticks-container{position:absolute;left:0;top:0;overflow:hidden}.mat-slider-ticks{background-repeat:repeat;background-clip:content-box;box-sizing:border-box;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-thumb-container{position:absolute;z-index:1;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-focus-ring{position:absolute;width:30px;height:30px;border-radius:50%;transform:scale(0);opacity:0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider.cdk-keyboard-focused .mat-slider-focus-ring,.mat-slider.cdk-program-focused .mat-slider-focus-ring{transform:scale(1);opacity:1}.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb-label,.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb{cursor:-webkit-grab;cursor:grab}.mat-slider-thumb{position:absolute;right:-10px;bottom:-10px;box-sizing:border-box;width:20px;height:20px;border:3px solid transparent;border-radius:50%;transform:scale(0.7);transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),border-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-thumb-label{display:none;align-items:center;justify-content:center;position:absolute;width:28px;height:28px;border-radius:50%;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),border-radius 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.cdk-high-contrast-active .mat-slider-thumb-label{outline:solid 1px}.mat-slider-thumb-label-text{z-index:1;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-sliding .mat-slider-track-fill,.mat-slider-sliding .mat-slider-track-background,.mat-slider-sliding .mat-slider-thumb-container{transition-duration:0ms}.mat-slider-has-ticks .mat-slider-wrapper::after{content:\"\";position:absolute;border-width:0;border-style:solid;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-has-ticks.cdk-focused:not(.mat-slider-hide-last-tick) .mat-slider-wrapper::after,.mat-slider-has-ticks:hover:not(.mat-slider-hide-last-tick) .mat-slider-wrapper::after{opacity:1}.mat-slider-has-ticks.cdk-focused:not(.mat-slider-disabled) .mat-slider-ticks,.mat-slider-has-ticks:hover:not(.mat-slider-disabled) .mat-slider-ticks{opacity:1}.mat-slider-thumb-label-showing .mat-slider-focus-ring{display:none}.mat-slider-thumb-label-showing .mat-slider-thumb-label{display:flex}.mat-slider-axis-inverted .mat-slider-track-fill{transform-origin:100% 100%}.mat-slider-axis-inverted .mat-slider-track-background{transform-origin:0 0}.mat-slider:not(.mat-slider-disabled).cdk-focused.mat-slider-thumb-label-showing .mat-slider-thumb{transform:scale(0)}.mat-slider:not(.mat-slider-disabled).cdk-focused .mat-slider-thumb-label{border-radius:50% 50% 0}.mat-slider:not(.mat-slider-disabled).cdk-focused .mat-slider-thumb-label-text{opacity:1}.mat-slider:not(.mat-slider-disabled).cdk-mouse-focused .mat-slider-thumb,.mat-slider:not(.mat-slider-disabled).cdk-touch-focused .mat-slider-thumb,.mat-slider:not(.mat-slider-disabled).cdk-program-focused .mat-slider-thumb{border-width:2px;transform:scale(1)}.mat-slider-disabled .mat-slider-focus-ring{transform:scale(0);opacity:0}.mat-slider-disabled .mat-slider-thumb{border-width:4px;transform:scale(0.5)}.mat-slider-disabled .mat-slider-thumb-label{display:none}.mat-slider-horizontal{height:48px;min-width:128px}.mat-slider-horizontal .mat-slider-wrapper{height:2px;top:23px;left:8px;right:8px}.mat-slider-horizontal .mat-slider-wrapper::after{height:2px;border-left-width:2px;right:0;top:0}.mat-slider-horizontal .mat-slider-track-wrapper{height:2px;width:100%}.mat-slider-horizontal .mat-slider-track-fill{height:2px;width:100%;transform:scaleX(0)}.mat-slider-horizontal .mat-slider-track-background{height:2px;width:100%;transform:scaleX(1)}.mat-slider-horizontal .mat-slider-ticks-container{height:2px;width:100%}.cdk-high-contrast-active .mat-slider-horizontal .mat-slider-ticks-container{height:0;outline:solid 2px;top:1px}.mat-slider-horizontal .mat-slider-ticks{height:2px;width:100%}.mat-slider-horizontal .mat-slider-thumb-container{width:100%;height:0;top:50%}.mat-slider-horizontal .mat-slider-focus-ring{top:-15px;right:-15px}.mat-slider-horizontal .mat-slider-thumb-label{right:-14px;top:-40px;transform:translateY(26px) scale(0.01) rotate(45deg)}.mat-slider-horizontal .mat-slider-thumb-label-text{transform:rotate(-45deg)}.mat-slider-horizontal.cdk-focused .mat-slider-thumb-label{transform:rotate(45deg)}.cdk-high-contrast-active .mat-slider-horizontal.cdk-focused .mat-slider-thumb-label,.cdk-high-contrast-active .mat-slider-horizontal.cdk-focused .mat-slider-thumb-label-text{transform:none}.mat-slider-vertical{width:48px;min-height:128px}.mat-slider-vertical .mat-slider-wrapper{width:2px;top:8px;bottom:8px;left:23px}.mat-slider-vertical .mat-slider-wrapper::after{width:2px;border-top-width:2px;bottom:0;left:0}.mat-slider-vertical .mat-slider-track-wrapper{height:100%;width:2px}.mat-slider-vertical .mat-slider-track-fill{height:100%;width:2px;transform:scaleY(0)}.mat-slider-vertical .mat-slider-track-background{height:100%;width:2px;transform:scaleY(1)}.mat-slider-vertical .mat-slider-ticks-container{width:2px;height:100%}.cdk-high-contrast-active .mat-slider-vertical .mat-slider-ticks-container{width:0;outline:solid 2px;left:1px}.mat-slider-vertical .mat-slider-focus-ring{bottom:-15px;left:-15px}.mat-slider-vertical .mat-slider-ticks{width:2px;height:100%}.mat-slider-vertical .mat-slider-thumb-container{height:100%;width:0;left:50%}.mat-slider-vertical .mat-slider-thumb{-webkit-backface-visibility:hidden;backface-visibility:hidden}.mat-slider-vertical .mat-slider-thumb-label{bottom:-14px;left:-40px;transform:translateX(26px) scale(0.01) rotate(-45deg)}.mat-slider-vertical .mat-slider-thumb-label-text{transform:rotate(45deg)}.mat-slider-vertical.cdk-focused .mat-slider-thumb-label{transform:rotate(-45deg)}[dir=rtl] .mat-slider-wrapper::after{left:0;right:auto}[dir=rtl] .mat-slider-horizontal .mat-slider-track-fill{transform-origin:100% 100%}[dir=rtl] .mat-slider-horizontal .mat-slider-track-background{transform-origin:0 0}[dir=rtl] .mat-slider-horizontal.mat-slider-axis-inverted .mat-slider-track-fill{transform-origin:0 0}[dir=rtl] .mat-slider-horizontal.mat-slider-axis-inverted .mat-slider-track-background{transform-origin:100% 100%}.mat-slider._mat-animation-noopable .mat-slider-track-fill,.mat-slider._mat-animation-noopable .mat-slider-track-background,.mat-slider._mat-animation-noopable .mat-slider-ticks,.mat-slider._mat-animation-noopable .mat-slider-thumb-container,.mat-slider._mat-animation-noopable .mat-slider-focus-ring,.mat-slider._mat-animation-noopable .mat-slider-thumb,.mat-slider._mat-animation-noopable .mat-slider-thumb-label,.mat-slider._mat-animation-noopable .mat-slider-thumb-label-text,.mat-slider._mat-animation-noopable .mat-slider-has-ticks .mat-slider-wrapper::after{transition:none}\n"]
            },] }
];
MatSlider.ctorParameters = () => [
    { type: ElementRef },
    { type: FocusMonitor },
    { type: ChangeDetectorRef },
    { type: Directionality, decorators: [{ type: Optional }] },
    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },
    { type: NgZone },
    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }
];
MatSlider.propDecorators = {
    invert: [{ type: Input }],
    max: [{ type: Input }],
    min: [{ type: Input }],
    step: [{ type: Input }],
    thumbLabel: [{ type: Input }],
    tickInterval: [{ type: Input }],
    value: [{ type: Input }],
    displayWith: [{ type: Input }],
    valueText: [{ type: Input }],
    vertical: [{ type: Input }],
    change: [{ type: Output }],
    input: [{ type: Output }],
    valueChange: [{ type: Output }],
    _sliderWrapper: [{ type: ViewChild, args: ['sliderWrapper',] }]
};
/** Returns whether an event is a touch event. */
function isTouchEvent(event) {
    // This function is called for every pixel that the user has dragged so we need it to be
    // as fast as possible. Since we only bind mouse events and touch events, we can assume
    // that if the event's name starts with `t`, it's a touch event.
    return event.type[0] === 't';
}
/** Gets the coordinates of a touch or mouse event relative to the viewport. */
function getPointerPositionOnPage(event) {
    // `touches` will be empty for start/end events so we have to fall back to `changedTouches`.
    const point = isTouchEvent(event) ? (event.touches[0] || event.changedTouches[0]) : event;
    return { x: point.clientX, y: point.clientY };
}

/**
 * @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 MatSliderModule {
}
MatSliderModule.decorators = [
    { type: NgModule, args: [{
                imports: [CommonModule, MatCommonModule],
                exports: [MatSlider, MatCommonModule],
                declarations: [MatSlider],
            },] }
];

/**
 * @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_SLIDER_VALUE_ACCESSOR, MatSlider, MatSliderChange, MatSliderModule };
//# sourceMappingURL=slider.js.map