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 */ const _MatSliderBase = mixinTabIndex(mixinColor(mixinDisabled(class { constructor(_elementRef) { this._elementRef = _elementRef; } }), 'accent')); /** * Allows users to select from a range of values by moving the slider thumb. It is similar in * behavior to the native `` element. */ class MatSlider extends _MatSliderBase { 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 and what the user is using to slide it with. * Used to determine if there should be a transition for the thumb and fill track. */ this._isSliding = null; /** * 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(() => { this._touchId = isTouchEvent(event) ? getTouchIdForSlider(event, this._elementRef.nativeElement) : undefined; const pointerPosition = getPointerPositionOnPage(event, this._touchId); if (pointerPosition) { const oldValue = this.value; this._isSliding = 'pointer'; 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 === 'pointer') { const pointerPosition = getPointerPositionOnPage(event, this._touchId); if (pointerPosition) { // Prevent the slide from selecting anything else. event.preventDefault(); const oldValue = this.value; this._lastPointerEvent = event; this._updateValueFromPosition(pointerPosition); // 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 === 'pointer') { if (!isTouchEvent(event) || typeof this._touchId !== 'number' || // Note that we use `changedTouches`, rather than `touches` because it // seems like in most cases `touches` is empty for `touchend` events. findMatchingTouch(event.changedTouches, this._touchId)) { event.preventDefault(); this._removeGlobalEvents(); this._isSliding = null; this._touchId = undefined; 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); 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, 0); // 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) || (this._isSliding && this._isSliding !== 'keyboard')) { 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 = 'keyboard'; event.preventDefault(); } _onKeyup() { if (this._isSliding === 'keyboard') { this._isSliding = null; } } /** 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: "
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\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{-webkit-print-color-adjust:exact;color-adjust:exact;position:absolute}.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{-webkit-background-clip:content-box;background-clip:content-box;background-repeat:repeat;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 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.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, id) { let point; if (isTouchEvent(event)) { // The `identifier` could be undefined if the browser doesn't support `TouchEvent.identifier`. // If that's the case, attribute the first touch to all active sliders. This should still cover // the most common case while only breaking multi-touch. if (typeof id === 'number') { point = findMatchingTouch(event.touches, id) || findMatchingTouch(event.changedTouches, id); } else { // `touches` will be empty for start/end events so we have to fall back to `changedTouches`. point = event.touches[0] || event.changedTouches[0]; } } else { point = event; } return point ? { x: point.clientX, y: point.clientY } : undefined; } /** Finds a `Touch` with a specific ID in a `TouchList`. */ function findMatchingTouch(touches, id) { for (let i = 0; i < touches.length; i++) { if (touches[i].identifier === id) { return touches[i]; } } return undefined; } /** Gets the unique ID of a touch that matches a specific slider. */ function getTouchIdForSlider(event, sliderHost) { for (let i = 0; i < event.touches.length; i++) { const target = event.touches[i].target; if (sliderHost === target || sliderHost.contains(target)) { return event.touches[i].identifier; } } return undefined; } /** * @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