StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics https://doi.org/10.1109/TVCG.2020.3030352
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StackGenVis/frontend/node_modules/bootstrap-vue/esm/components/carousel/carousel.js

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20 KiB

import Vue from '../../utils/vue';
import KeyCodes from '../../utils/key-codes';
import noop from '../../utils/noop';
import observeDom from '../../utils/observe-dom';
import { getComponentConfig } from '../../utils/config';
import { selectAll, reflow, addClass, removeClass, setAttr } from '../../utils/dom';
import { isBrowser, hasTouchSupport, hasPointerEventSupport } from '../../utils/env';
import { EVENT_OPTIONS_NO_CAPTURE, eventOn, eventOff } from '../../utils/events';
import { isUndefined } from '../../utils/inspect';
import { toInteger } from '../../utils/number';
import idMixin from '../../mixins/id';
import normalizeSlotMixin from '../../mixins/normalize-slot';
var NAME = 'BCarousel'; // Slide directional classes
var DIRECTION = {
next: {
dirClass: 'carousel-item-left',
overlayClass: 'carousel-item-next'
},
prev: {
dirClass: 'carousel-item-right',
overlayClass: 'carousel-item-prev'
}
}; // Fallback Transition duration (with a little buffer) in ms
var TRANS_DURATION = 600 + 50; // Time for mouse compat events to fire after touch
var TOUCH_EVENT_COMPAT_WAIT = 500; // Number of pixels to consider touch move a swipe
var SWIPE_THRESHOLD = 40; // PointerEvent pointer types
var PointerType = {
TOUCH: 'touch',
PEN: 'pen'
}; // Transition Event names
var TransitionEndEvents = {
WebkitTransition: 'webkitTransitionEnd',
MozTransition: 'transitionend',
OTransition: 'otransitionend oTransitionEnd',
transition: 'transitionend'
}; // Return the browser specific transitionEnd event name
var getTransitionEndEvent = function getTransitionEndEvent(el) {
for (var name in TransitionEndEvents) {
if (!isUndefined(el.style[name])) {
return TransitionEndEvents[name];
}
} // Fallback
/* istanbul ignore next */
return null;
}; // @vue/component
export var BCarousel =
/*#__PURE__*/
Vue.extend({
name: NAME,
mixins: [idMixin, normalizeSlotMixin],
provide: function provide() {
return {
bvCarousel: this
};
},
model: {
prop: 'value',
event: 'input'
},
props: {
labelPrev: {
type: String,
default: function _default() {
return getComponentConfig(NAME, 'labelPrev');
}
},
labelNext: {
type: String,
default: function _default() {
return getComponentConfig(NAME, 'labelNext');
}
},
labelGotoSlide: {
type: String,
default: function _default() {
return getComponentConfig(NAME, 'labelGotoSlide');
}
},
labelIndicators: {
type: String,
default: function _default() {
return getComponentConfig(NAME, 'labelIndicators');
}
},
interval: {
type: Number,
default: 5000
},
indicators: {
type: Boolean,
default: false
},
controls: {
type: Boolean,
default: false
},
noAnimation: {
// Disable slide/fade animation
type: Boolean,
default: false
},
fade: {
// Enable cross-fade animation instead of slide animation
type: Boolean,
default: false
},
noWrap: {
// Disable wrapping/looping when start/end is reached
type: Boolean,
default: false
},
noTouch: {
// Sniffed by carousel-slide
type: Boolean,
default: false
},
noHoverPause: {
// Disable pause on hover
type: Boolean,
default: false
},
imgWidth: {
// Sniffed by carousel-slide
type: [Number, String] // default: undefined
},
imgHeight: {
// Sniffed by carousel-slide
type: [Number, String] // default: undefined
},
background: {
type: String // default: undefined
},
value: {
type: Number,
default: 0
}
},
data: function data() {
return {
index: this.value || 0,
isSliding: false,
transitionEndEvent: null,
slides: [],
direction: null,
isPaused: !(toInteger(this.interval) > 0),
// Touch event handling values
touchStartX: 0,
touchDeltaX: 0
};
},
computed: {
numSlides: function numSlides() {
return this.slides.length;
}
},
watch: {
value: function value(newVal, oldVal) {
if (newVal !== oldVal) {
this.setSlide(toInteger(newVal) || 0);
}
},
interval: function interval(newVal, oldVal) {
if (newVal === oldVal) {
/* istanbul ignore next */
return;
}
if (!newVal) {
// Pausing slide show
this.pause(false);
} else {
// Restarting or Changing interval
this.pause(true);
this.start(false);
}
},
isPaused: function isPaused(newVal, oldVal) {
if (newVal !== oldVal) {
this.$emit(newVal ? 'paused' : 'unpaused');
}
},
index: function index(to, from) {
if (to === from || this.isSliding) {
/* istanbul ignore next */
return;
}
this.doSlide(to, from);
}
},
created: function created() {
// Create private non-reactive props
this._intervalId = null;
this._animationTimeout = null;
this._touchTimeout = null; // Set initial paused state
this.isPaused = !(toInteger(this.interval) > 0);
},
mounted: function mounted() {
// Cache current browser transitionend event name
this.transitionEndEvent = getTransitionEndEvent(this.$el) || null; // Get all slides
this.updateSlides(); // Observe child changes so we can update slide list
observeDom(this.$refs.inner, this.updateSlides.bind(this), {
subtree: false,
childList: true,
attributes: true,
attributeFilter: ['id']
});
},
beforeDestroy: function beforeDestroy() {
clearTimeout(this._animationTimeout);
clearTimeout(this._touchTimeout);
clearInterval(this._intervalId);
this._intervalId = null;
this._animationTimeout = null;
this._touchTimeout = null;
},
methods: {
// Set slide
setSlide: function setSlide(slide) {
var _this = this;
var direction = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
// Don't animate when page is not visible
/* istanbul ignore if: difficult to test */
if (isBrowser && document.visibilityState && document.hidden) {
return;
}
var noWrap = this.noWrap;
var numSlides = this.numSlides; // Make sure we have an integer (you never know!)
slide = Math.floor(slide); // Don't do anything if nothing to slide to
if (numSlides === 0) {
return;
} // Don't change slide while transitioning, wait until transition is done
if (this.isSliding) {
// Schedule slide after sliding complete
this.$once('sliding-end', function () {
return _this.setSlide(slide, direction);
});
return;
}
this.direction = direction; // Set new slide index
// Wrap around if necessary (if no-wrap not enabled)
this.index = slide >= numSlides ? noWrap ? numSlides - 1 : 0 : slide < 0 ? noWrap ? 0 : numSlides - 1 : slide; // Ensure the v-model is synched up if no-wrap is enabled
// and user tried to slide pass either ends
if (noWrap && this.index !== slide && this.index !== this.value) {
this.$emit('input', this.index);
}
},
// Previous slide
prev: function prev() {
this.setSlide(this.index - 1, 'prev');
},
// Next slide
next: function next() {
this.setSlide(this.index + 1, 'next');
},
// Pause auto rotation
pause: function pause(evt) {
if (!evt) {
this.isPaused = true;
}
if (this._intervalId) {
clearInterval(this._intervalId);
this._intervalId = null;
}
},
// Start auto rotate slides
start: function start(evt) {
if (!evt) {
this.isPaused = false;
}
/* istanbul ignore next: most likely will never happen, but just in case */
if (this._intervalId) {
clearInterval(this._intervalId);
this._intervalId = null;
} // Don't start if no interval, or less than 2 slides
if (this.interval && this.numSlides > 1) {
this._intervalId = setInterval(this.next, Math.max(1000, this.interval));
}
},
// Restart auto rotate slides when focus/hover leaves the carousel
restart: function restart()
/* istanbul ignore next: difficult to test */
{
if (!this.$el.contains(document.activeElement)) {
this.start();
}
},
doSlide: function doSlide(to, from) {
var _this2 = this;
var isCycling = Boolean(this.interval); // Determine sliding direction
var direction = this.calcDirection(this.direction, from, to);
var overlayClass = direction.overlayClass;
var dirClass = direction.dirClass; // Determine current and next slides
var currentSlide = this.slides[from];
var nextSlide = this.slides[to]; // Don't do anything if there aren't any slides to slide to
if (!currentSlide || !nextSlide) {
/* istanbul ignore next */
return;
} // Start animating
this.isSliding = true;
if (isCycling) {
this.pause(false);
}
this.$emit('sliding-start', to); // Update v-model
this.$emit('input', this.index);
if (this.noAnimation) {
addClass(nextSlide, 'active');
removeClass(currentSlide, 'active');
this.isSliding = false; // Notify ourselves that we're done sliding (slid)
this.$nextTick(function () {
return _this2.$emit('sliding-end', to);
});
} else {
addClass(nextSlide, overlayClass); // Trigger a reflow of next slide
reflow(nextSlide);
addClass(currentSlide, dirClass);
addClass(nextSlide, dirClass); // Transition End handler
var called = false;
/* istanbul ignore next: difficult to test */
var onceTransEnd = function onceTransEnd() {
if (called) {
return;
}
called = true;
/* istanbul ignore if: transition events cant be tested in JSDOM */
if (_this2.transitionEndEvent) {
var events = _this2.transitionEndEvent.split(/\s+/);
events.forEach(function (evt) {
return eventOff(currentSlide, evt, onceTransEnd, EVENT_OPTIONS_NO_CAPTURE);
});
}
_this2._animationTimeout = null;
removeClass(nextSlide, dirClass);
removeClass(nextSlide, overlayClass);
addClass(nextSlide, 'active');
removeClass(currentSlide, 'active');
removeClass(currentSlide, dirClass);
removeClass(currentSlide, overlayClass);
setAttr(currentSlide, 'aria-current', 'false');
setAttr(nextSlide, 'aria-current', 'true');
setAttr(currentSlide, 'aria-hidden', 'true');
setAttr(nextSlide, 'aria-hidden', 'false');
_this2.isSliding = false;
_this2.direction = null; // Notify ourselves that we're done sliding (slid)
_this2.$nextTick(function () {
return _this2.$emit('sliding-end', to);
});
}; // Set up transitionend handler
/* istanbul ignore if: transition events cant be tested in JSDOM */
if (this.transitionEndEvent) {
var events = this.transitionEndEvent.split(/\s+/);
events.forEach(function (event) {
return eventOn(currentSlide, event, onceTransEnd, EVENT_OPTIONS_NO_CAPTURE);
});
} // Fallback to setTimeout()
this._animationTimeout = setTimeout(onceTransEnd, TRANS_DURATION);
}
if (isCycling) {
this.start(false);
}
},
// Update slide list
updateSlides: function updateSlides() {
this.pause(true); // Get all slides as DOM elements
this.slides = selectAll('.carousel-item', this.$refs.inner);
var numSlides = this.slides.length; // Keep slide number in range
var index = Math.max(0, Math.min(Math.floor(this.index), numSlides - 1));
this.slides.forEach(function (slide, idx) {
var n = idx + 1;
if (idx === index) {
addClass(slide, 'active');
setAttr(slide, 'aria-current', 'true');
} else {
removeClass(slide, 'active');
setAttr(slide, 'aria-current', 'false');
}
setAttr(slide, 'aria-posinset', String(n));
setAttr(slide, 'aria-setsize', String(numSlides));
}); // Set slide as active
this.setSlide(index);
this.start(this.isPaused);
},
calcDirection: function calcDirection() {
var direction = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
var curIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var nextIndex = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
if (!direction) {
return nextIndex > curIndex ? DIRECTION.next : DIRECTION.prev;
}
return DIRECTION[direction];
},
handleClick: function handleClick(evt, fn) {
var keyCode = evt.keyCode;
if (evt.type === 'click' || keyCode === KeyCodes.SPACE || keyCode === KeyCodes.ENTER) {
evt.preventDefault();
evt.stopPropagation();
fn();
}
},
handleSwipe: function handleSwipe()
/* istanbul ignore next: JSDOM doesn't support touch events */
{
var absDeltaX = Math.abs(this.touchDeltaX);
if (absDeltaX <= SWIPE_THRESHOLD) {
return;
}
var direction = absDeltaX / this.touchDeltaX; // Reset touch delta X
// https://github.com/twbs/bootstrap/pull/28558
this.touchDeltaX = 0;
if (direction > 0) {
// Swipe left
this.prev();
} else if (direction < 0) {
// Swipe right
this.next();
}
},
touchStart: function touchStart(evt)
/* istanbul ignore next: JSDOM doesn't support touch events */
{
if (hasPointerEventSupport && PointerType[evt.pointerType.toUpperCase()]) {
this.touchStartX = evt.clientX;
} else if (!hasPointerEventSupport) {
this.touchStartX = evt.touches[0].clientX;
}
},
touchMove: function touchMove(evt)
/* istanbul ignore next: JSDOM doesn't support touch events */
{
// Ensure swiping with one touch and not pinching
if (evt.touches && evt.touches.length > 1) {
this.touchDeltaX = 0;
} else {
this.touchDeltaX = evt.touches[0].clientX - this.touchStartX;
}
},
touchEnd: function touchEnd(evt)
/* istanbul ignore next: JSDOM doesn't support touch events */
{
if (hasPointerEventSupport && PointerType[evt.pointerType.toUpperCase()]) {
this.touchDeltaX = evt.clientX - this.touchStartX;
}
this.handleSwipe(); // If it's a touch-enabled device, mouseenter/leave are fired as
// part of the mouse compatibility events on first tap - the carousel
// would stop cycling until user tapped out of it;
// here, we listen for touchend, explicitly pause the carousel
// (as if it's the second time we tap on it, mouseenter compat event
// is NOT fired) and after a timeout (to allow for mouse compatibility
// events to fire) we explicitly restart cycling
this.pause(false);
if (this._touchTimeout) {
clearTimeout(this._touchTimeout);
}
this._touchTimeout = setTimeout(this.start, TOUCH_EVENT_COMPAT_WAIT + Math.max(1000, this.interval));
}
},
render: function render(h) {
var _this3 = this;
// Wrapper for slides
var inner = h('div', {
ref: 'inner',
class: ['carousel-inner'],
attrs: {
id: this.safeId('__BV_inner_'),
role: 'list'
}
}, [this.normalizeSlot('default')]); // Prev and next controls
var controls = h();
if (this.controls) {
var prevHandler = function prevHandler(evt) {
/* istanbul ignore next */
if (!_this3.isSliding) {
_this3.handleClick(evt, _this3.prev);
} else {
evt.preventDefault();
}
};
var nextHandler = function nextHandler(evt) {
/* istanbul ignore next */
if (!_this3.isSliding) {
_this3.handleClick(evt, _this3.next);
} else {
evt.preventDefault();
}
};
controls = [h('a', {
class: ['carousel-control-prev'],
attrs: {
href: '#',
role: 'button',
'aria-controls': this.safeId('__BV_inner_'),
'aria-disabled': this.isSliding ? 'true' : null
},
on: {
click: prevHandler,
keydown: prevHandler
}
}, [h('span', {
class: ['carousel-control-prev-icon'],
attrs: {
'aria-hidden': 'true'
}
}), h('span', {
class: ['sr-only']
}, [this.labelPrev])]), h('a', {
class: ['carousel-control-next'],
attrs: {
href: '#',
role: 'button',
'aria-controls': this.safeId('__BV_inner_'),
'aria-disabled': this.isSliding ? 'true' : null
},
on: {
click: nextHandler,
keydown: nextHandler
}
}, [h('span', {
class: ['carousel-control-next-icon'],
attrs: {
'aria-hidden': 'true'
}
}), h('span', {
class: ['sr-only']
}, [this.labelNext])])];
} // Indicators
var indicators = h('ol', {
class: ['carousel-indicators'],
directives: [{
name: 'show',
rawName: 'v-show',
value: this.indicators,
expression: 'indicators'
}],
attrs: {
id: this.safeId('__BV_indicators_'),
'aria-hidden': this.indicators ? 'false' : 'true',
'aria-label': this.labelIndicators,
'aria-owns': this.safeId('__BV_inner_')
}
}, this.slides.map(function (slide, n) {
return h('li', {
key: "slide_".concat(n),
class: {
active: n === _this3.index
},
attrs: {
role: 'button',
id: _this3.safeId("__BV_indicator_".concat(n + 1, "_")),
tabindex: _this3.indicators ? '0' : '-1',
'aria-current': n === _this3.index ? 'true' : 'false',
'aria-label': "".concat(_this3.labelGotoSlide, " ").concat(n + 1),
'aria-describedby': _this3.slides[n].id || null,
'aria-controls': _this3.safeId('__BV_inner_')
},
on: {
click: function click(evt) {
_this3.handleClick(evt, function () {
_this3.setSlide(n);
});
},
keydown: function keydown(evt) {
_this3.handleClick(evt, function () {
_this3.setSlide(n);
});
}
}
});
}));
var on = {
mouseenter: this.noHoverPause ? noop : this.pause,
mouseleave: this.noHoverPause ? noop : this.restart,
focusin: this.pause,
focusout: this.restart,
keydown: function keydown(evt) {
if (/input|textarea/i.test(evt.target.tagName)) {
/* istanbul ignore next */
return;
}
var keyCode = evt.keyCode;
if (keyCode === KeyCodes.LEFT || keyCode === KeyCodes.RIGHT) {
evt.preventDefault();
evt.stopPropagation();
_this3[keyCode === KeyCodes.LEFT ? 'prev' : 'next']();
}
}
}; // Touch support event handlers for environment
if (!this.noTouch && hasTouchSupport) {
// Attach appropriate listeners (prepend event name with '&' for passive mode)
/* istanbul ignore next: JSDOM doesn't support touch events */
if (hasPointerEventSupport) {
on['&pointerdown'] = this.touchStart;
on['&pointerup'] = this.touchEnd;
} else {
on['&touchstart'] = this.touchStart;
on['&touchmove'] = this.touchMove;
on['&touchend'] = this.touchEnd;
}
} // Return the carousel
return h('div', {
staticClass: 'carousel',
class: {
slide: !this.noAnimation,
'carousel-fade': !this.noAnimation && this.fade,
'pointer-event': !this.noTouch && hasTouchSupport && hasPointerEventSupport
},
style: {
background: this.background
},
attrs: {
role: 'region',
id: this.safeId(),
'aria-busy': this.isSliding ? 'true' : 'false'
},
on: on
}, [inner, controls, indicators]);
}
});