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