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+/* eslint-env browser */
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+const marked = require('marked')
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+const dragdrop = require('drag-drop')
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+const robodog = require('@uppy/robodog')
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+
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+const TRANSLOADIT_EXAMPLE_KEY = '35c1aed03f5011e982b6afe82599b6a0'
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+const TRANSLOADIT_EXAMPLE_TEMPLATE = '0b2ee2bc25dc43619700c2ce0a75164a'
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+
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+/**
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+ * A textarea for markdown text, with support for file attachments.
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+ *
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+ * ## Usage
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+ *
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+ * ```js
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+ * const element = document.querySelector('textarea')
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+ * const mdtxt = new MarkdownTextarea(element)
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+ * mdtxt.install()
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+ * ```
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+ */
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+class MarkdownTextarea {
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+ constructor (element) {
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+ this.element = element
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+ this.controls = document.createElement('div')
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+ this.controls.classList.add('mdtxt-controls')
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+ this.uploadLine = document.createElement('div')
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+ this.uploadLine.classList.add('form-upload')
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+
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+ this.uploadLine.appendChild(
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+ document.createTextNode('Tap here to upload an attachment'))
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+ }
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+
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+ install () {
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+ const { element } = this
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+ const wrapper = document.createElement('div')
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+ wrapper.classList.add('mdtxt')
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+ element.parentNode.replaceChild(wrapper, element)
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+ wrapper.appendChild(this.controls)
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+ wrapper.appendChild(element)
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+ wrapper.appendChild(this.uploadLine)
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+
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+ this.setupUploadLine()
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+ this.setupTextareaDrop()
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+ }
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+
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+ setupTextareaDrop () {
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+ dragdrop(this.element, (files) => {
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+ this.uploadFiles(files)
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+ })
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+ }
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+
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+ setupUploadLine () {
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+ this.uploadLine.addEventListener('click', () => {
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+ this.pickFiles()
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+ })
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+ }
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+
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+ reportUploadError (err) {
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+ this.uploadLine.classList.add('error')
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+ const message = document.createElement('span')
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+ message.appendChild(document.createTextNode(err.message))
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+ this.uploadLine.insertChild(message, this.uploadLine.firstChild)
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+ }
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+
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+ unreportUploadError () {
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+ this.uploadLine.classList.remove('error')
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+ const message = this.uploadLine.querySelector('message')
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+ if (message) {
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+ this.uploadLine.removeChild(message)
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+ }
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+ }
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+
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+ insertAttachments (attachments) {
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+ attachments.forEach((attachment) => {
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+ const { file, thumb } = attachment
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+ const link = `\n[LABEL](${file.ssl_url})\n`
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+ const labelText = `View File ${file.basename}`
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+ if (thumb) {
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+ this.element.value += link.replace('LABEL', ``)
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+ } else {
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+ this.element.value += link.replace('LABEL', labelText)
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+ }
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+ })
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+ }
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+
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+ matchFilesAndThumbs (results) {
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+ const filesById = {}
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+ const thumbsById = {}
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+
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+ results.forEach((result) => {
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+ if (result.stepName === 'thumbnails') {
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+ thumbsById[result.original_id] = result
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+ } else {
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+ filesById[result.original_id] = result
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+ }
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+ })
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+
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+ return Object.keys(filesById).reduce((acc, key) => {
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+ const file = filesById[key]
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+ const thumb = thumbsById[key]
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+ acc.push({ file, thumb })
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+ return acc
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+ }, [])
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+ }
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+
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+ uploadFiles (files) {
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+ robodog.upload(files, {
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+ waitForEncoding: true,
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+ params: {
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+ auth: { key: TRANSLOADIT_EXAMPLE_KEY },
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+ template_id: TRANSLOADIT_EXAMPLE_TEMPLATE
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+ }
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+ }).then((result) => {
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+ this.insertAttachments(
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+ this.matchFilesAndThumbs(result.results)
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+ )
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+ }).catch((err) => {
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+ console.error(err)
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+ this.reportUploadError(err)
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+ })
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+ }
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+
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+ pickFiles () {
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+ robodog.pick({
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+ waitForEncoding: true,
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+ params: {
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+ auth: { key: TRANSLOADIT_EXAMPLE_KEY },
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+ template_id: TRANSLOADIT_EXAMPLE_TEMPLATE
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+ },
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+ providers: [
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+ 'webcam',
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+ 'url',
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+ 'instagram',
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+ 'google-drive',
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+ 'dropbox'
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+ ]
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+ }).then((result) => {
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+ this.insertAttachments(
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+ this.matchFilesAndThumbs(result.results)
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+ )
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+ }).catch((err) => {
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+ console.error(err)
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+ this.reportUploadError(err)
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+ })
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+ }
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+}
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+
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+const textarea = new MarkdownTextarea(
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+ document.querySelector('#new textarea'))
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+textarea.install()
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+
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+function renderSnippet (title, text) {
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+ const template = document.querySelector('#snippet')
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+ const newSnippet = document.importNode(template.content, true)
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+ const titleEl = newSnippet.querySelector('.snippet-title')
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+ const contentEl = newSnippet.querySelector('.snippet-content')
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+
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+ titleEl.appendChild(document.createTextNode(title))
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+ contentEl.innerHTML = marked(text)
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+
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+ const list = document.querySelector('#snippets')
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+ list.insertBefore(newSnippet, list.firstChild)
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+}
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+
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+function saveSnippet (title, text) {
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+ const id = parseInt(localStorage.numSnippets || 0, 10)
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+ localStorage[`snippet_${id}`] = JSON.stringify({ title, text })
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+ localStorage.numSnippets = id + 1
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+}
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+
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+function loadSnippets () {
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+ for (let id = 0; localStorage[`snippet_${id}`] != null; id += 1) {
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+ const { title, text } = JSON.parse(localStorage[`snippet_${id}`])
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+ renderSnippet(title, text)
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+ }
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+}
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+
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+document.querySelector('#new').addEventListener('submit', (event) => {
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+ event.preventDefault()
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+
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+ const title = event.target.querySelector('input[name="title"]').value ||
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+ 'Unnamed Snippet'
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+ const text = textarea.element.value
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+
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+ saveSnippet(title, text)
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+ renderSnippet(title, text)
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+
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+ event.target.querySelector('input').value = ''
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+ event.target.querySelector('textarea').value = ''
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+})
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+
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+window.addEventListener('DOMContentLoaded', () => {
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+ loadSnippets()
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+})
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