@angular/material
Version:
Angular Material
1,227 lines (1,221 loc) • 56.3 kB
JavaScript
/**
* @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
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/a11y'), require('@angular/cdk/bidi'), require('@angular/cdk/coercion'), require('@angular/cdk/keycodes'), require('@angular/core'), require('@angular/forms'), require('@angular/material/core'), require('@angular/platform-browser/animations'), require('rxjs'), require('@angular/common'), require('@angular/platform-browser')) :
typeof define === 'function' && define.amd ? define('@angular/material/slider', ['exports', '@angular/cdk/a11y', '@angular/cdk/bidi', '@angular/cdk/coercion', '@angular/cdk/keycodes', '@angular/core', '@angular/forms', '@angular/material/core', '@angular/platform-browser/animations', 'rxjs', '@angular/common', '@angular/platform-browser'], factory) :
(factory((global.ng = global.ng || {}, global.ng.material = global.ng.material || {}, global.ng.material.slider = {}),global.ng.cdk.a11y,global.ng.cdk.bidi,global.ng.cdk.coercion,global.ng.cdk.keycodes,global.ng.core,global.ng.forms,global.ng.material.core,global.ng.platformBrowser.animations,global.rxjs,global.ng.common,global.ng.platformBrowser));
}(this, (function (exports,a11y,bidi,coercion,keycodes,core,forms,core$1,animations,rxjs,common,platformBrowser) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/* global Reflect, Promise */
var extendStatics = function(d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
function __extends(d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Visually, a 30px separation between tick marks looks best. This is very subjective but it is
* the default separation we chose.
* @type {?}
*/
var MIN_AUTO_TICK_SEPARATION = 30;
/**
* The thumb gap size for a disabled slider.
* @type {?}
*/
var DISABLED_THUMB_GAP = 7;
/**
* The thumb gap size for a non-active slider at its minimum value.
* @type {?}
*/
var MIN_VALUE_NONACTIVE_THUMB_GAP = 7;
/**
* The thumb gap size for an active slider at its minimum value.
* @type {?}
*/
var 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
* @type {?}
*/
var MAT_SLIDER_VALUE_ACCESSOR = {
provide: forms.NG_VALUE_ACCESSOR,
useExisting: core.forwardRef((/**
* @return {?}
*/
function () { return MatSlider; })),
multi: true
};
/**
* A simple change event emitted by the MatSlider component.
*/
var /**
* A simple change event emitted by the MatSlider component.
*/
MatSliderChange = /** @class */ (function () {
function MatSliderChange() {
}
return MatSliderChange;
}());
// Boilerplate for applying mixins to MatSlider.
/**
* \@docs-private
*/
var
// Boilerplate for applying mixins to MatSlider.
/**
* \@docs-private
*/
MatSliderBase = /** @class */ (function () {
function MatSliderBase(_elementRef) {
this._elementRef = _elementRef;
}
return MatSliderBase;
}());
/** @type {?} */
var _MatSliderMixinBase = core$1.mixinTabIndex(core$1.mixinColor(core$1.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.
*/
var MatSlider = /** @class */ (function (_super) {
__extends(MatSlider, _super);
function MatSlider(elementRef, _focusMonitor, _changeDetectorRef, _dir, tabIndex, _animationMode) {
var _this = _super.call(this, elementRef) || this;
_this._focusMonitor = _focusMonitor;
_this._changeDetectorRef = _changeDetectorRef;
_this._dir = _dir;
_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 core.EventEmitter();
/**
* Event emitted when the slider thumb moves.
*/
_this.input = new core.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 core.EventEmitter();
/**
* onTouch function registered via registerOnTouch (ControlValueAccessor).
*/
_this.onTouched = (/**
* @return {?}
*/
function () { });
_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 = (/**
* @return {?}
*/
function () { });
/**
* Subscription to the Directionality change EventEmitter.
*/
_this._dirChangeSubscription = rxjs.Subscription.EMPTY;
_this.tabIndex = parseInt(tabIndex) || 0;
return _this;
}
Object.defineProperty(MatSlider.prototype, "invert", {
/** Whether the slider is inverted. */
get: /**
* Whether the slider is inverted.
* @return {?}
*/
function () { return this._invert; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._invert = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "max", {
/** The maximum value that the slider can have. */
get: /**
* The maximum value that the slider can have.
* @return {?}
*/
function () { return this._max; },
set: /**
* @param {?} v
* @return {?}
*/
function (v) {
this._max = coercion.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();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "min", {
/** The minimum value that the slider can have. */
get: /**
* The minimum value that the slider can have.
* @return {?}
*/
function () { return this._min; },
set: /**
* @param {?} v
* @return {?}
*/
function (v) {
this._min = coercion.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();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "step", {
/** The values at which the thumb will snap. */
get: /**
* The values at which the thumb will snap.
* @return {?}
*/
function () { return this._step; },
set: /**
* @param {?} v
* @return {?}
*/
function (v) {
this._step = coercion.coerceNumberProperty(v, this._step);
if (this._step % 1 !== 0) {
this._roundToDecimal = (/** @type {?} */ (this._step.toString().split('.').pop())).length;
}
// Since this could modify the label, we need to notify the change detection.
this._changeDetectorRef.markForCheck();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "thumbLabel", {
/** Whether or not to show the thumb label. */
get: /**
* Whether or not to show the thumb label.
* @return {?}
*/
function () { return this._thumbLabel; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) { this._thumbLabel = coercion.coerceBooleanProperty(value); },
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "tickInterval", {
/**
* 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: /**
* 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).
* @return {?}
*/
function () { return this._tickInterval; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
if (value === 'auto') {
this._tickInterval = 'auto';
}
else if (typeof value === 'number' || typeof value === 'string') {
this._tickInterval = coercion.coerceNumberProperty(value, (/** @type {?} */ (this._tickInterval)));
}
else {
this._tickInterval = 0;
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "value", {
/** Value of the slider. */
get: /**
* Value of the slider.
* @return {?}
*/
function () {
// 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: /**
* @param {?} v
* @return {?}
*/
function (v) {
if (v !== this._value) {
/** @type {?} */
var value = coercion.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 = 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();
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "vertical", {
/** Whether the slider is vertical. */
get: /**
* Whether the slider is vertical.
* @return {?}
*/
function () { return this._vertical; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._vertical = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "displayValue", {
/** The value to be used for display purposes. */
get: /**
* The value to be used for display purposes.
* @return {?}
*/
function () {
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((/** @type {?} */ (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;
},
enumerable: true,
configurable: true
});
/** set focus to the host element */
/**
* set focus to the host element
* @param {?=} options
* @return {?}
*/
MatSlider.prototype.focus = /**
* set focus to the host element
* @param {?=} options
* @return {?}
*/
function (options) {
this._focusHostElement(options);
};
/** blur the host element */
/**
* blur the host element
* @return {?}
*/
MatSlider.prototype.blur = /**
* blur the host element
* @return {?}
*/
function () {
this._blurHostElement();
};
Object.defineProperty(MatSlider.prototype, "percent", {
/** The percentage of the slider that coincides with the value. */
get: /**
* The percentage of the slider that coincides with the value.
* @return {?}
*/
function () { return this._clamp(this._percent); },
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_invertAxis", {
/**
* 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).
*/
get: /**
* 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).
* @return {?}
*/
function () {
// 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;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_isMinValue", {
/** Whether the slider is at its minimum value. */
get: /**
* Whether the slider is at its minimum value.
* @return {?}
*/
function () {
return this.percent === 0;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_thumbGap", {
/**
* The amount of space to leave between the slider thumb and the track fill & track background
* elements.
*/
get: /**
* The amount of space to leave between the slider thumb and the track fill & track background
* elements.
* @return {?}
*/
function () {
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;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_trackBackgroundStyles", {
/** CSS styles for the track background element. */
get: /**
* CSS styles for the track background element.
* @return {?}
*/
function () {
/** @type {?} */
var axis = this.vertical ? 'Y' : 'X';
/** @type {?} */
var scale = this.vertical ? "1, " + (1 - this.percent) + ", 1" : 1 - this.percent + ", 1, 1";
/** @type {?} */
var sign = this._shouldInvertMouseCoords() ? '-' : '';
return {
// scale3d avoids some rendering issues in Chrome. See #12071.
transform: "translate" + axis + "(" + sign + this._thumbGap + "px) scale3d(" + scale + ")"
};
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_trackFillStyles", {
/** CSS styles for the track fill element. */
get: /**
* CSS styles for the track fill element.
* @return {?}
*/
function () {
/** @type {?} */
var axis = this.vertical ? 'Y' : 'X';
/** @type {?} */
var scale = this.vertical ? "1, " + this.percent + ", 1" : this.percent + ", 1, 1";
/** @type {?} */
var sign = this._shouldInvertMouseCoords() ? '' : '-';
return {
// scale3d avoids some rendering issues in Chrome. See #12071.
transform: "translate" + axis + "(" + sign + this._thumbGap + "px) scale3d(" + scale + ")"
};
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_ticksContainerStyles", {
/** CSS styles for the ticks container element. */
get: /**
* CSS styles for the ticks container element.
* @return {?}
*/
function () {
/** @type {?} */
var 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.
/** @type {?} */
var sign = !this.vertical && this._getDirection() == 'rtl' ? '' : '-';
/** @type {?} */
var offset = this._tickIntervalPercent / 2 * 100;
return {
'transform': "translate" + axis + "(" + sign + offset + "%)"
};
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_ticksStyles", {
/** CSS styles for the ticks element. */
get: /**
* CSS styles for the ticks element.
* @return {?}
*/
function () {
/** @type {?} */
var tickSize = this._tickIntervalPercent * 100;
/** @type {?} */
var backgroundSize = this.vertical ? "2px " + tickSize + "%" : tickSize + "% 2px";
/** @type {?} */
var 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.
/** @type {?} */
var sign = !this.vertical && this._getDirection() == 'rtl' ? '-' : '';
/** @type {?} */
var rotate = !this.vertical && this._getDirection() == 'rtl' ? ' rotate(180deg)' : '';
/** @type {?} */
var 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._thumbGap) {
/** @type {?} */
var side = this.vertical ?
(this._invertAxis ? 'Bottom' : 'Top') :
(this._invertAxis ? 'Right' : 'Left');
styles["padding" + side] = this._thumbGap + "px";
}
return styles;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSlider.prototype, "_thumbContainerStyles", {
get: /**
* @return {?}
*/
function () {
/** @type {?} */
var 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.
/** @type {?} */
var invertOffset = (this._getDirection() == 'rtl' && !this.vertical) ? !this._invertAxis : this._invertAxis;
/** @type {?} */
var offset = (invertOffset ? this.percent : 1 - this.percent) * 100;
return {
'transform': "translate" + axis + "(-" + offset + "%)"
};
},
enumerable: true,
configurable: true
});
/**
* 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.
*/
/**
* 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.
* @return {?}
*/
MatSlider.prototype._shouldInvertMouseCoords = /**
* 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.
* @return {?}
*/
function () {
return (this._getDirection() == 'rtl' && !this.vertical) ? !this._invertAxis : this._invertAxis;
};
/** The language direction for this slider element. */
/**
* The language direction for this slider element.
* @private
* @return {?}
*/
MatSlider.prototype._getDirection = /**
* The language direction for this slider element.
* @private
* @return {?}
*/
function () {
return (this._dir && this._dir.value == 'rtl') ? 'rtl' : 'ltr';
};
/**
* @return {?}
*/
MatSlider.prototype.ngOnInit = /**
* @return {?}
*/
function () {
var _this = this;
this._focusMonitor
.monitor(this._elementRef, true)
.subscribe((/**
* @param {?} origin
* @return {?}
*/
function (origin) {
_this._isActive = !!origin && origin !== 'keyboard';
_this._changeDetectorRef.detectChanges();
}));
if (this._dir) {
this._dirChangeSubscription = this._dir.change.subscribe((/**
* @return {?}
*/
function () {
_this._changeDetectorRef.markForCheck();
}));
}
};
/**
* @return {?}
*/
MatSlider.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
this._focusMonitor.stopMonitoring(this._elementRef);
this._dirChangeSubscription.unsubscribe();
};
/**
* @return {?}
*/
MatSlider.prototype._onMouseenter = /**
* @return {?}
*/
function () {
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();
};
/**
* @param {?} event
* @return {?}
*/
MatSlider.prototype._onMousedown = /**
* @param {?} event
* @return {?}
*/
function (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 || event.button !== 0) {
return;
}
/** @type {?} */
var oldValue = this.value;
this._isSliding = false;
this._focusHostElement();
this._updateValueFromPosition({ x: event.clientX, y: event.clientY });
// Emit a change and input event if the value changed.
if (oldValue != this.value) {
this._emitInputEvent();
this._emitChangeEvent();
}
};
/**
* @param {?} event
* @return {?}
*/
MatSlider.prototype._onSlide = /**
* @param {?} event
* @return {?}
*/
function (event) {
if (this.disabled) {
return;
}
// The slide start event sometimes fails to fire on iOS, so if we're not already in the sliding
// state, call the slide start handler manually.
if (!this._isSliding) {
this._onSlideStart(null);
}
// Prevent the slide from selecting anything else.
event.preventDefault();
/** @type {?} */
var oldValue = this.value;
this._updateValueFromPosition({ x: event.center.x, y: event.center.y });
// Native range elements always emit `input` events when the value changed while sliding.
if (oldValue != this.value) {
this._emitInputEvent();
}
};
/**
* @param {?} event
* @return {?}
*/
MatSlider.prototype._onSlideStart = /**
* @param {?} event
* @return {?}
*/
function (event) {
if (this.disabled || this._isSliding) {
return;
}
// Simulate mouseenter in case this is a mobile device.
this._onMouseenter();
this._isSliding = true;
this._focusHostElement();
this._valueOnSlideStart = this.value;
if (event) {
this._updateValueFromPosition({ x: event.center.x, y: event.center.y });
event.preventDefault();
}
};
/**
* @return {?}
*/
MatSlider.prototype._onSlideEnd = /**
* @return {?}
*/
function () {
this._isSliding = false;
if (this._valueOnSlideStart != this.value && !this.disabled) {
this._emitChangeEvent();
}
this._valueOnSlideStart = null;
};
/**
* @return {?}
*/
MatSlider.prototype._onFocus = /**
* @return {?}
*/
function () {
// 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();
};
/**
* @return {?}
*/
MatSlider.prototype._onBlur = /**
* @return {?}
*/
function () {
this.onTouched();
};
/**
* @param {?} event
* @return {?}
*/
MatSlider.prototype._onKeydown = /**
* @param {?} event
* @return {?}
*/
function (event) {
if (this.disabled || keycodes.hasModifierKey(event)) {
return;
}
/** @type {?} */
var oldValue = this.value;
switch (event.keyCode) {
case keycodes.PAGE_UP:
this._increment(10);
break;
case keycodes.PAGE_DOWN:
this._increment(-10);
break;
case keycodes.END:
this.value = this.max;
break;
case keycodes.HOME:
this.value = this.min;
break;
case keycodes.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 keycodes.UP_ARROW:
this._increment(1);
break;
case keycodes.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 keycodes.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();
};
/**
* @return {?}
*/
MatSlider.prototype._onKeyup = /**
* @return {?}
*/
function () {
this._isSliding = false;
};
/** Increments the slider by the given number of steps (negative number decrements). */
/**
* Increments the slider by the given number of steps (negative number decrements).
* @private
* @param {?} numSteps
* @return {?}
*/
MatSlider.prototype._increment = /**
* Increments the slider by the given number of steps (negative number decrements).
* @private
* @param {?} numSteps
* @return {?}
*/
function (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. */
/**
* Calculate the new value from the new physical location. The value will always be snapped.
* @private
* @param {?} pos
* @return {?}
*/
MatSlider.prototype._updateValueFromPosition = /**
* Calculate the new value from the new physical location. The value will always be snapped.
* @private
* @param {?} pos
* @return {?}
*/
function (pos) {
if (!this._sliderDimensions) {
return;
}
/** @type {?} */
var offset = this.vertical ? this._sliderDimensions.top : this._sliderDimensions.left;
/** @type {?} */
var size = this.vertical ? this._sliderDimensions.height : this._sliderDimensions.width;
/** @type {?} */
var posComponent = this.vertical ? pos.y : pos.x;
// The exact value is calculated from the event and used to find the closest snap value.
/** @type {?} */
var 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 {
/** @type {?} */
var exactValue = this._calculateValue(percent);
// This calculation finds the closest step by finding the closest
// whole number divisible by the step relative to the min.
/** @type {?} */
var 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. */
/**
* Emits a change event if the current value is different from the last emitted value.
* @private
* @return {?}
*/
MatSlider.prototype._emitChangeEvent = /**
* Emits a change event if the current value is different from the last emitted value.
* @private
* @return {?}
*/
function () {
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. */
/**
* Emits an input event when the current value is different from the last emitted value.
* @private
* @return {?}
*/
MatSlider.prototype._emitInputEvent = /**
* Emits an input event when the current value is different from the last emitted value.
* @private
* @return {?}
*/
function () {
this.input.emit(this._createChangeEvent());
};
/** Updates the amount of space between ticks as a percentage of the width of the slider. */
/**
* Updates the amount of space between ticks as a percentage of the width of the slider.
* @private
* @return {?}
*/
MatSlider.prototype._updateTickIntervalPercent = /**
* Updates the amount of space between ticks as a percentage of the width of the slider.
* @private
* @return {?}
*/
function () {
if (!this.tickInterval || !this._sliderDimensions) {
return;
}
if (this.tickInterval == 'auto') {
/** @type {?} */
var trackSize = this.vertical ? this._sliderDimensions.height : this._sliderDimensions.width;
/** @type {?} */
var pixelsPerStep = trackSize * this.step / (this.max - this.min);
/** @type {?} */
var stepsPerTick = Math.ceil(MIN_AUTO_TICK_SEPARATION / pixelsPerStep);
/** @type {?} */
var 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. */
/**
* Creates a slider change object from the specified value.
* @private
* @param {?=} value
* @return {?}
*/
MatSlider.prototype._createChangeEvent = /**
* Creates a slider change object from the specified value.
* @private
* @param {?=} value
* @return {?}
*/
function (value) {
if (value === void 0) { value = this.value; }
/** @type {?} */
var event = new MatSliderChange();
event.source = this;
event.value = value;
return event;
};
/** Calculates the percentage of the slider that a value is. */
/**
* Calculates the percentage of the slider that a value is.
* @private
* @param {?} value
* @return {?}
*/
MatSlider.prototype._calculatePercentage = /**
* Calculates the percentage of the slider that a value is.
* @private
* @param {?} value
* @return {?}
*/
function (value) {
return ((value || 0) - this.min) / (this.max - this.min);
};
/** Calculates the value a percentage of the slider corresponds to. */
/**
* Calculates the value a percentage of the slider corresponds to.
* @private
* @param {?} percentage
* @return {?}
*/
MatSlider.prototype._calculateValue = /**
* Calculates the value a percentage of the slider corresponds to.
* @private
* @param {?} percentage
* @return {?}
*/
function (percentage) {
return this.min + percentage * (this.max - this.min);
};
/** Return a number between two numbers. */
/**
* Return a number between two numbers.
* @private
* @param {?} value
* @param {?=} min
* @param {?=} max
* @return {?}
*/
MatSlider.prototype._clamp = /**
* Return a number between two numbers.
* @private
* @param {?} value
* @param {?=} min
* @param {?=} max
* @return {?}
*/
function (value, min, max) {
if (min === void 0) { min = 0; }
if (max === void 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.
*/
/**
* 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.
* @private
* @return {?}
*/
MatSlider.prototype._getSliderDimensions = /**
* 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.
* @private
* @return {?}
*/
function () {
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.
*/
/**
* Focuses the native element.
* Currently only used to allow a blur event to fire but will be used with keyboard input later.
* @private
* @param {?=} options
* @return {?}
*/
MatSlider.prototype._focusHostElement = /**
* Focuses the native element.
* Currently only used to allow a blur event to fire but will be used with keyboard input later.
* @private
* @param {?=} options
* @return {?}
*/
function (options) {
this._elementRef.nativeElement.focus(options);
};
/** Blurs the native element. */
/**
* Blurs the native element.
* @private
* @return {?}
*/
MatSlider.prototype._blurHostElement = /**
* Blurs the native element.
* @private
* @return {?}
*/
function () {
this._elementRef.nativeElement.blur();
};
/**
* Sets the model value. Implemented as part of ControlValueAccessor.
* @param value
*/
/**
* Sets the model value. Implemented as part of ControlValueAccessor.
* @param {?} value
* @return {?}
*/
MatSlider.prototype.writeValue = /**
* Sets the model value. Implemented as part of ControlValueAccessor.
* @param {?} value
* @return {?}
*/
function (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.
*/
/**
* Registers a callback to be triggered when the value has changed.
* Implemented as part of ControlValueAccessor.
* @param {?} fn Callback to be registered.
* @return {?}
*/
MatSlider.prototype.registerOnChange = /**
* Registers a callback to be triggered when the value has changed.
* Implemented as part of ControlValueAccessor.
* @param {?} fn Callback to be registered.
* @return {?}
*/
function (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.
*/
/**
* Registers a callback to be triggered when the component is touched.
* Implemented as part of ControlValueAccessor.
* @param {?} fn Callback to be registered.
* @return {?}
*/
MatSlider.prototype.registerOnTouched = /**
* Registers a callback to be triggered when the component is touched.
* Implemented as part of ControlValueAccessor.
* @param {?} fn Callback to be registered.
* @return {?}
*/
function (fn) {
this.onTouched = fn;
};
/**
* Sets whether the component should be disabled.
* Implemented as part of ControlValueAccessor.
* @param isDisabled
*/
/**
* Sets whether the component should be disabled.
* Implemented as part of ControlValueAccessor.
* @param {?} isDisabled
* @return {?}
*/
MatSlider.prototype.setDisabledState = /**
* Sets whether the component should be disabled.
* Implemented as part of ControlValueAccessor.
* @param {?} isDisabled
* @return {?}
*/
function (isDisabled) {
this.disabled = isDisabled;
};
MatSlider.decorators = [
{ type: core.Component, args: [{selector: 'mat-slider',
exportAs: 'matSlider',
providers: [MAT_SLIDER_VALUE_ACCESSOR],
host: {
'(focus)': '_onFocus()',
'(blur)': '_onBlur()',
'(mousedown)': '_onMousedown($event)',
'(keydown)': '_onKeydown($event)',
'(keyup)': '_onKeyup()',
'(mouseenter)': '_onMouseenter()',
'(slide)': '_onSlide($event)',
'(slideend)': '_onSlideEnd()',
'(slidestart)': '_onSlideStart($event)',
// On Safari starting to slide temporarily triggers text selection mode which
// show the wrong cursor. We prevent it by stopping the `selectstart` event.
'(selectstart)': '$event.preventDefault()',
'class': 'mat-slider',
'role': 'slider',
'[tabIndex]': 'tabIndex',
'[attr.aria-disabled]': 'disabled',
'[attr.aria-valuemax]': 'max',
'[attr.aria-valuemin]': 'min',
'[attr.aria-valuenow]': 'value',
'[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]': '_invertAxis',
// 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 && _thumbGap && _invertAxis',
'[class._mat-animation-noopable]': '_animationMode === "NoopAnimations"',
},
template: "<div class=\"mat-slider-wrapper\" #sliderWrapper><div class=\"mat-slider-track-wrapper\"><div class=\"mat-slider-track-background\" [ngStyle]=\"_trackBackgroundStyles\"></div><div class=\"mat-slider-track-fill\" [ngStyle]=\"_trackFillStyles\"></div></div><div class=\"mat-slider-ticks-container\" [ngStyle]=\"_ticksContainerStyles\"><div class=\"mat-slider-ticks\" [ngStyle]=\"_ticksStyles\"></div></div><div class=\"mat-slider-thumb-container\" [ngStyle]=\"_thumbContainerStyles\"><div class=\"mat-slider-focus-ring\"></div><div class=\"mat-slider-thumb\"></div><div class=\"mat-slider-thumb-label\"><span class=\"mat-slider-thumb-label-text\">{{displayValue}}</span></div></div></div>",
styles: [".mat-slider{display:inline-block;position:relative;box-sizing:border-box;padding:8px;outline:0;vertical-align:middle}.mat-slider.mat-slider-sliding:not(.mat-slider-disabled),.mat-slider:not(.mat-slider-disabled):active{cursor:-webkit-grabbing;cursor:grabbing}.mat-slider-wrapper{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 .4s cubic-bezier(.25,.8,.25,1),background-color .4s cubic-bezier(.25,.8,.25,1)}.mat-slider-track-background{position:absolute;transform-origin:100% 100%;transition:transform .4s cubic-bezier(.25,.8,.25,1),background-color .4s cubic-bezier(.25,.8,.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 .4s cubic-bezier(.25,.8,.25,1)}.mat-slider-thumb-container{position:absolute;z-index:1;transition:transform .4s cubic-bezier(.25,.8,.25,1)}.mat-slider-focus-ring{position:absolute;width:30px;height:30px;border-radius:50%;transform:scale(0);opacity:0;transition:transform .4s cubic-bezier(.25,.8,.25,1),background-color .4s cubic-bezier(.25,.8,.25,1),opacity .4s cubic-bezier(.25,.8,.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,.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb-label{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(.7);transition:transform .4s cubic-bezier(.25,.8,.25,1),background-color .4s cubic-bezier(.25,.8,.25,1),border-color .4s cubic-bezier(.25,.8,.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 .4s cubic-bezier(.25,.8,.25,1),border-radius .4s cubic-bezier(.25,.8,.25,1),background-color .4s cubic-bezier(.25,.8,.25,1)}@media (-ms-high-contrast:active){.mat-slider-thumb-label{outline:solid 1px}}.mat-slider-thumb-label-text{z-index:1;opacity:0;transition:opacity .4s cubic-bezier(.25,.8,.25,1)}.mat-slider-sliding .mat-slider-thumb-container,.mat-slider-sliding .mat-slider-track-background,.mat-slider-sliding .mat-slider-track-fill{transition-duration:0s}.mat-slider-has-ticks .mat-slider-wrapper::after{content:'';position:absolute;border-width:0;border-style:solid;opacity:0;transition:opacity .4s cubic-bezier(.25,.8,.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-program-focused