518 lines
15 KiB
JavaScript
518 lines
15 KiB
JavaScript
export var CardPlugin = CardPlugin || {}
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export class CardPluginBase {
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apply(context) {
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if (this.verify(context)) {
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this.append(context)
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console.log('Plugin ' + this.name + ' was verified successfully.')
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return true
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} else console.error('Could not verify module ' + this.name + '.')
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return false
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}
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get name() {
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return this.constructor.name
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}
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verify(context) {
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let funcs = this._getVerificationFunctions(context)
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for (let func of funcs) {
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if (!func()) return false
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}
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return true
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}
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_verifyElementsExist(context, ...selectors) {
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let missing = []
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for (let selector of selectors) {
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let requiredElement = context.querySelector(selector)
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if (requiredElement == null) {
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missing.push(selector)
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}
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}
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const valid = missing.length == 0
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if (!valid) console.error('Elements were missing: ', missing.join(', '))
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return valid
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}
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/**
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* Appends the Plugin to the context.
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*
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* @memberof CardPlugin
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*/
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append(context) {
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console.error(
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'Call of abstract method CardPlugin.prototype.append(context). Plugins need to overwrite the append method!'
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)
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}
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_getVerificationFunctions(context) {
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return [this._verifyContext.bind(this, context), this._verifyRequirements.bind(this, context)]
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}
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_verifyContext(context) {
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if (!(context instanceof HTMLElement)) {
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console.error('Context is not of type HTML Element.', context)
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return false
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} else return true
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}
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_verifyRequirements(context) {
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let requirements = this._collectAllRequirements()
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let missing = []
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requirements.forEach(module => {
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if (context.modules.indexOf(module.name) == -1) {
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missing.push(module.name)
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}
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})
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const valid = missing.length == 0
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if (!valid)
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console.error(
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"Could not apply module '" +
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this.name +
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"'. Following modules are required but were missing: " +
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missing.join(',')
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)
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else console.log('All requirements were met! Well done!')
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return valid
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}
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_collectAllRequirements() {
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let requirements = []
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let klass = this.__proto__
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while (klass) {
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if (klass.require != null) {
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requirements = requirements.concat(klass.require)
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}
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klass = klass.__proto__
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}
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return requirements
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}
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}
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CardPlugin.LightBox = class LightBox extends CardPluginBase {
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constructor(className, style = {}) {
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super()
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this.className = className
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this.style = style
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}
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append(context) {
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let wrapper = document.createElement('div')
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wrapper.className = this.className
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Object.assign(
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wrapper.style,
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{
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zIndex: 1000,
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// backgroundColor: "black",
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top: 0,
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left: 0,
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width: '100%',
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height: '100%'
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},
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this.style,
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{
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display: 'none',
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position: 'absolute'
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}
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)
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context.appendChild(wrapper)
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}
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}
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/**
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* The Enlargeable Overlay module allows the user to click on the thumbnail image,
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* and the images gets enlarged inside the card.
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*
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* @class EnlargeableThumbnail
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* @extends {CardPlugin}
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*/
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CardPlugin.EnlargeableThumbnail = class EnlargeableThumbnail extends CardPluginBase {
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constructor(
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wrapperSelector,
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overlaySelector = null,
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{ zoomAnimationDuration = 0.4, fadeAnimationDuration = 0.4, interactionType = 'tap' } = {}
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) {
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super()
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this.wrapperSelector = wrapperSelector
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this.overlaySelector = overlaySelector
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this.zoomAnimationDuration = zoomAnimationDuration
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this.fadeAnimationDuration = fadeAnimationDuration
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this.interactionType = interactionType
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}
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get require() {
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return [CardPlugin.LightBox]
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}
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_getVerificationFunctions(context) {
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let arr = super._getVerificationFunctions(context)
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let funcs = [this._verifyElementsExist.bind(this, context, this.wrapperSelector, this.overlaySelector)]
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return arr.concat(funcs)
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}
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append(context) {
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let source = this._retrieveSource(context)
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this.setupEnlargeableThumbnail(context, source)
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}
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/**
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* Get the preview image.
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*
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* It depends on the fact, that the thumbnail image is in the same directory
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*
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*
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* @param {*} context
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* @returns
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* @memberof EnlargeableThumbnail
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*/
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_retrieveSource(context) {
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let img = context.querySelector(this.wrapperSelector + ' img')
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let src = img.getAttribute('src')
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let parts = src.split('/')
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parts.pop()
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parts.push(parts[parts.length - 1])
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let imagePath = parts.join('/') + '.jpg'
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return imagePath
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}
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setupEnlargeableThumbnail(context, src) {
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let wrapper = context.querySelector(this.wrapperSelector)
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let overlay = context.querySelector(this.overlaySelector)
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let icon = document.createElement('div')
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icon.className = 'button corner-button bottom-right icon zoom'
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wrapper.appendChild(icon)
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Object.assign(wrapper.style, {
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cursor: 'pointer'
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})
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InteractionMapper.on(this.interactionType, wrapper, () => {
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this.openThumbnailDetail(context, src)
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})
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InteractionMapper.on(this.interactionType, overlay, () => {
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this.closeThumnailDetail(context)
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})
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}
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openThumbnailDetail(context, src) {
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let overlay = context.querySelector('.img-overlay')
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overlay.innerHTML = ''
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let source = context.querySelector(this.wrapperSelector)
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let sourceStyle = window.getComputedStyle(source)
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let imageWrapper = source.cloneNode(true)
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let image = imageWrapper.querySelector('img')
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Object.assign(imageWrapper.style, {
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maxWidth: 'none',
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maxHeight: 'none'
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})
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Object.assign(image.style, {
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width: '100%',
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height: '100%',
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objectFit: 'cover'
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})
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this._replaceIcon(imageWrapper)
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image.onload = () => {
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let header = context.querySelector('header')
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let headerStlye = window.getComputedStyle(header)
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/**
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* First the maxFillRatio is considered.
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* It describes how much the image is allowed to exceed the context element.
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*/
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const maxFillRatio = 1.5
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/**
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* The minor side should not exceed the height of the context window.
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*/
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const maxMinorSize =
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context.offsetHeight - 2 * parseInt(headerStlye.paddingTop) - 2 * parseInt(headerStlye.marginTop)
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const max = {
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width: context.offsetWidth * maxFillRatio,
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height: context.offsetHeight * maxFillRatio
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}
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let majorSide
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let minorSide
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const _width = { name: 'width', axis: 'x' }
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const _height = { name: 'height', axis: 'y' }
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if (image.naturalHeight > image.naturalWidth) {
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majorSide = _height
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minorSide = _width
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} else {
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majorSide = _width
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minorSide = _height
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}
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function capitalize(string) {
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return string.charAt(0).toUpperCase() + string.slice(1)
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}
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function getImageSize(side) {
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return image['natural' + capitalize(side.name)]
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}
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const majorImageSize = getImageSize(majorSide)
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// const minorImageSize = getImageSize(minorSide)
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let ratio = getImageSize(minorSide) / getImageSize(majorSide)
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let size = majorImageSize > max[majorSide.name] ? max[majorSide.name] : majorImageSize
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if (size * ratio > maxMinorSize) {
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size = maxMinorSize / ratio
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}
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let targetDimensions = {
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width: 0,
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height: 0
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}
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let position = Points.fromPageToNode(context, Points.fromNodeToPage(source, { x: 0, y: 0 }))
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let targetOffset = {
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x: 0,
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y: 0
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}
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targetDimensions[majorSide.name] = size
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targetDimensions[minorSide.name] = size * ratio
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targetOffset[majorSide.axis] =
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(context['offset' + capitalize(majorSide.name)] - targetDimensions[majorSide.name]) / 2
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targetOffset[minorSide.axis] =
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(context['offset' + capitalize(minorSide.name)] - targetDimensions[minorSide.name]) / 2
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overlay.appendChild(imageWrapper)
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TweenMax.set(imageWrapper, {
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left: 0,
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top: 0,
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x: position.x,
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y: position.y,
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position: 'absolute',
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width: parseInt(sourceStyle.width),
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height: parseInt(sourceStyle.height)
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})
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TweenMax.set(overlay, {
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display: 'flex',
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autoAlpha: 0
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})
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TweenMax.to(imageWrapper, this.zoomAnimationDuration, {
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x: targetOffset.x,
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y: targetOffset.y,
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width: targetDimensions.width,
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height: targetDimensions.height
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})
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TweenMax.to(overlay, this.fadeAnimationTime, {
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autoAlpha: 1
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})
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}
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image.src = src
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}
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_replaceIcon(clone) {
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let zoomIcon = clone.querySelector('.icon.zoom')
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zoomIcon.classList.remove('zoom')
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zoomIcon.classList.add('close')
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}
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getBorderHeight(style) {
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const borderWidth = parseInt(style.borderTopWidth) + parseInt(style.borderBottomWidth)
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const padding = parseInt(style.paddingTop) + parseInt(style.paddingBottom)
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return parseInt(style.width) + borderWidth + padding
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}
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getBorderWidth(style) {
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const borderWidth = parseInt(style.borderLeftWidth) + parseInt(style.borderRightWidth)
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const padding = parseInt(style.paddingLeft) + parseInt(style.paddingRight)
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return parseInt(style.width) + borderWidth + padding
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}
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closeThumnailDetail(context) {
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let overlay = context.querySelector('.img-overlay')
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let timeline = new TimelineLite()
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timeline
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.to(overlay, this.fadeAnimationDuration, {
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autoAlpha: 0
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})
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.set(overlay, {
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display: 'none'
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})
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}
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}
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CardPlugin.Ui = class UiPlugin extends CardPluginBase {
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constructor(className, parent = null) {
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super()
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this.parent = parent
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this.className = className
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}
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_getVerificationFunctions(context) {
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let arr = super._getVerificationFunctions(context)
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let func = [this._doesParentExist.bind(this, context, this.parent)]
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return arr.concat(func)
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}
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_doesParentExist(context, parent) {
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if (parent == null) return true
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let valid = context.querySelector(parent) != null
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if (!valid) console.error('Could not find parent on context.', context, parent)
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return valid
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}
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append(context) {
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parent = this.parent == null ? context : context.querySelector(this.parent).appendChild(container)
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let container = document.createElement('div')
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container.className = this.className
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parent.appendChild(container)
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}
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}
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CardPlugin.Speech = class SpeechPlugin extends CardPluginBase {
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constructor(parentSelector, className, interactionType = 'tap') {
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super()
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this.className = className
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this.parentSelector = parentSelector
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this.interactionType = interactionType
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}
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get require() {
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return [CardPlugin.Ui]
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}
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append(context) {
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let container = context.querySelector(this.parentSelector)
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this.button = document.createElement('div')
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this.button.className = 'icon button ' + this.className
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container.appendChild(this.button)
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InteractionMapper.on(this.interactionType, this.button, () => {
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let subcard = context.querySelector('.mainview > .subcard')
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let target = subcard ? subcard : context
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this.speak(target)
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})
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}
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_activate() {
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this._disableActive()
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this.active = this
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this._activateButton()
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}
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_activateButton() {
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if (this.button) this.button.classList.add('active')
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}
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_deactivate() {
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this._deactivateButton()
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}
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_deactivateButton() {
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if (this.button) this.button.classList.remove('active')
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}
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_isSameNode(node) {
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//console.log(this.currentText, node.innerText)
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return this.currentText == node.innerText
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}
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speak(node) {
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console.log(this._isSameNode(node))
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if (!window.speechSynthesis.speaking) {
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console.log('Noone talking!')
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this._start(node)
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} else if (this._isSameNode(node)) {
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console.log('Requested same!')
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this._stop()
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} else {
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console.log('Requested Different!')
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this._stop()
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this._start(node)
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}
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}
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_disableActive() {
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console.log('disableActive:', this.active)
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if (this.active) {
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this.active._deactivate()
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}
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}
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_start(node) {
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this.currentText = node.innerText
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let utterance = new SpeechSynthesisUtterance(node.innerText)
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let voices = window.speechSynthesis.getVoices()
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console.log(voices)
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let voice = voices.filter(val => {
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//console.log(val)
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return val.name == 'Microsoft Hedda Desktop - German'
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})[0]
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//console.log(voice)
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utterance.voice = voice
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console.log('TALK: ', utterance)
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window.speechSynthesis.speak(utterance)
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this._activate()
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window.speechSynthesis.resume()
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utterance.onboundary = () => {
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console.log('onboundary', node.innerText)
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if (this.currentText.substring(0, 5) != node.innerText.substring(0, 5)) {
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console.log('text for speech synth changed!', this.currentText, node.innerText)
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this._stop()
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}
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}
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utterance.onend = () => console.log('onend', node.innerText)
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utterance.onerror = () => console.log('onerror', node.innerText)
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utterance.onmark = () => console.log('onmark', node.innerText)
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utterance.onpause = () => console.log('onpause', node.innerText)
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utterance.onresume = () => console.log('onresume', node.innerText)
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utterance.onstart = () => console.log('onstart', node.innerText)
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utterance.onerror = () => console.log('onerror', node.innerText)
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}
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_stop() {
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window.speechSynthesis.cancel()
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this.currentText = null
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this._deactivate()
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}
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get active() {
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return this.constructor.active
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}
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set active(val) {
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this.constructor.active = val
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}
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get currentText() {
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return this.constructor.text
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}
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set currentText(val) {
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this.constructor.text = val
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}
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}
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