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902 lines
30 KiB
902 lines
30 KiB
const EventEmitter = require('events')
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const { encode2B, encode3B, parse2B } = require('./utils')
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class ANSIParser {
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constructor (handler) {
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this.reset()
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this.handler = handler
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this.joinChunks = true
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}
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reset () {
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this.currentSequence = 0
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this.sequence = ''
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}
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parseSequence (sequence) {
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if (sequence[0] === '[') {
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let type = sequence[sequence.length - 1]
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let content = sequence.substring(1, sequence.length - 1)
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let numbers = content ? content.split(';').map(i => +i.replace(/\D/g, '')) : []
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let numOr1 = numbers.length ? numbers[0] : 1
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if (type === 'H') {
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this.handler('set-cursor', (numbers[0] | 0) - 1, (numbers[1] | 0) - 1)
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} else if (type >= 'A' && type <= 'D') {
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this.handler(`move-cursor-${type <= 'B' ? 'y' : 'x'}`, ((type === 'B' || type === 'C') ? 1 : -1) * numOr1)
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} else if (type === 'E' || type === 'F') {
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this.handler('move-cursor-line', (type === 'E' ? 1 : -1) * numOr1)
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} else if (type === 'G') {
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this.handler('set-cursor-x', numOr1 - 1)
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} else if (type === 'J') {
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let number = numbers.length ? numbers[0] : 2
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if (number === 2) this.handler('clear')
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} else if (type === 'P') {
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this.handler('delete', numOr1)
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} else if (type === '@') {
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this.handler('insert-blanks', numOr1)
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} else if (type === 'q') this.handler('set-cursor-style', numOr1)
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else if (type === 'm') {
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if (!numbers.length || numbers[0] === 0) {
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this.handler('reset-style')
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return
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}
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let type = numbers[0]
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if (type === 1) this.handler('add-attrs', 1) // bold
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else if (type === 2) this.handler('add-attrs', 1 << 1) // faint
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else if (type === 3) this.handler('add-attrs', 1 << 2) // italic
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else if (type === 4) this.handler('add-attrs', 1 << 3) // underline
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else if (type === 5 || type === 6) this.handler('add-attrs', 1 << 4) // blink
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else if (type === 7) this.handler('add-attrs', -1) // invert
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else if (type === 9) this.handler('add-attrs', 1 << 6) // strike
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else if (type === 20) this.handler('add-attrs', 1 << 5) // fraktur
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else if (type >= 30 && type <= 37) this.handler('set-color-fg', type % 10)
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else if (type >= 40 && type <= 47) this.handler('set-color-bg', type % 10)
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else if (type === 39) this.handler('set-color-fg', 7)
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else if (type === 49) this.handler('set-color-bg', 0)
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else if (type >= 90 && type <= 98) this.handler('set-color-fg', (type % 10) + 8)
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else if (type >= 100 && type <= 108) this.handler('set-color-bg', (type % 10) + 8)
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else if (type === 38 || type === 48) {
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if (numbers[1] === 5) {
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let color = (numbers[2] | 0) & 0xFF
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if (type === 38) this.handler('set-color-fg', color)
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if (type === 48) this.handler('set-color-bg', color)
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}
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}
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} else if (type === 'h' || type === 'l') {
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if (content === '?25') {
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if (type === 'h') this.handler('show-cursor')
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else if (type === 'l') this.handler('hide-cursor')
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}
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}
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}
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}
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write (text) {
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for (let character of text.toString()) {
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let code = character.codePointAt(0)
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if (code === 0x1b) this.currentSequence = 1
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else if (this.currentSequence === 1 && character === '[') {
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this.currentSequence = 2
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this.sequence += '['
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} else if (this.currentSequence && character.match(/[\x40-\x7e]/)) {
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this.parseSequence(this.sequence + character)
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this.currentSequence = 0
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this.sequence = ''
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} else if (this.currentSequence > 1) this.sequence += character
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else if (this.currentSequence === 1) {
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// something something nothing
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this.currentSequence = 0
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this.handler('write', character)
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} else if (code < 0x03) this.handler('_null')
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else if (code === 0x03) this.handler('sigint')
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else if (code <= 0x06) this.handler('_null')
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else if (code === 0x07) this.handler('bell')
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else if (code === 0x08) this.handler('back')
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else if (code === 0x0a) this.handler('new-line')
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else if (code === 0x0d) this.handler('return')
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else if (code === 0x15) this.handler('delete-line')
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else if (code === 0x17) this.handler('delete-word')
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else this.handler('write', character)
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}
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if (!this.joinChunks) this.reset()
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}
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}
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const TERM_DEFAULT_STYLE = 7
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const TERM_MIN_DRAW_DELAY = 10
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let getRainbowColor = t => {
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let r = Math.floor(Math.sin(t) * 2.5 + 2.5)
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let g = Math.floor(Math.sin(t + 2 / 3 * Math.PI) * 2.5 + 2.5)
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let b = Math.floor(Math.sin(t + 4 / 3 * Math.PI) * 2.5 + 2.5)
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return 16 + 36 * r + 6 * g + b
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}
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class ScrollingTerminal {
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constructor (screen) {
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this.width = 80
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this.height = 25
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this.termScreen = screen
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this.parser = new ANSIParser((...args) => this.handleParsed(...args))
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this.reset()
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this._lastLoad = Date.now()
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this.termScreen.load(this.serialize(), 0)
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}
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reset () {
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this.style = TERM_DEFAULT_STYLE
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this.cursor = { x: 0, y: 0, style: 1, visible: true }
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this.trackMouse = false
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this.theme = 0
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this.rainbow = false
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this.parser.reset()
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this.clear()
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}
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clear () {
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this.screen = []
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for (let i = 0; i < this.width * this.height; i++) {
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this.screen.push([' ', this.style])
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}
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}
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scroll () {
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this.screen.splice(0, this.width)
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for (let i = 0; i < this.width; i++) {
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this.screen.push([' ', TERM_DEFAULT_STYLE])
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}
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this.cursor.y--
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}
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newLine () {
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this.cursor.y++
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if (this.cursor.y >= this.height) this.scroll()
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}
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writeChar (character) {
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this.screen[this.cursor.y * this.width + this.cursor.x] = [character, this.style]
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this.cursor.x++
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if (this.cursor.x >= this.width) {
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this.cursor.x = 0
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this.newLine()
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}
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}
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moveBack (n = 1) {
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for (let i = 0; i < n; i++) {
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this.cursor.x--
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if (this.cursor.x < 0) {
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if (this.cursor.y > 0) this.cursor.x = this.width - 1
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else this.cursor.x = 0
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this.cursor.y = Math.max(0, this.cursor.y - 1)
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}
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}
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}
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moveForward (n = 1) {
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for (let i = 0; i < n; i++) {
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this.cursor.x++
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if (this.cursor.x >= this.width) {
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this.cursor.x = 0
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this.cursor.y++
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if (this.cursor.y >= this.height) this.scroll()
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}
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}
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}
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deleteChar () {
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this.moveBack()
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this.screen.splice((this.cursor.y + 1) * this.width, 0, [' ', TERM_DEFAULT_STYLE])
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this.screen.splice(this.cursor.y * this.width + this.cursor.x, 1)
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}
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deleteForward (n) {
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n = Math.min(this.width, n)
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for (let i = 0; i < n; i++) this.screen.splice((this.cursor.y + 1) * this.width, 0, [' ', TERM_DEFAULT_STYLE])
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this.screen.splice(this.cursor.y * this.width + this.cursor.x, n)
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}
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clampCursor () {
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if (this.cursor.x < 0) this.cursor.x = 0
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if (this.cursor.y < 0) this.cursor.y = 0
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if (this.cursor.x > this.width - 1) this.cursor.x = this.width - 1
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if (this.cursor.y > this.height - 1) this.cursor.y = this.height - 1
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}
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handleParsed (action, ...args) {
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if (action === 'write') {
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this.writeChar(args[0])
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} else if (action === 'delete') {
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this.deleteForward(args[0])
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} else if (action === 'insert-blanks') {
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this.insertBlanks(args[0])
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} else if (action === 'clear') {
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this.clear()
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} else if (action === 'bell') {
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this.terminal.load('B')
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} else if (action === 'back') {
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this.moveBack()
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} else if (action === 'new-line') {
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this.newLine()
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} else if (action === 'return') {
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this.cursor.x = 0
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} else if (action === 'set-cursor') {
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this.cursor.x = args[1]
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this.cursor.y = args[0]
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this.clampCursor()
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} else if (action === 'move-cursor-y') {
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this.cursor.y += args[0]
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this.clampCursor()
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} else if (action === 'move-cursor-x') {
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this.cursor.x += args[0]
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this.clampCursor()
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} else if (action === 'move-cursor-line') {
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this.cursor.x = 0
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this.cursor.y += args[0]
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this.clampCursor()
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} else if (action === 'set-cursor-x') {
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this.cursor.x = args[0]
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} else if (action === 'set-cursor-style') {
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this.cursor.style = Math.max(0, Math.min(6, args[0]))
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} else if (action === 'reset-style') {
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this.style = TERM_DEFAULT_STYLE
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} else if (action === 'add-attrs') {
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if (args[0] === -1) {
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this.style = (this.style & 0xFF0000) | ((this.style >> 8) & 0xFF) | ((this.style & 0xFF) << 8)
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} else {
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this.style |= (args[0] << 16)
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}
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} else if (action === 'set-color-fg') {
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this.style = (this.style & 0xFFFF00) | args[0]
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} else if (action === 'set-color-bg') {
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this.style = (this.style & 0xFF00FF) | (args[0] << 8)
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} else if (action === 'hide-cursor') {
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this.cursor.visible = false
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} else if (action === 'show-cursor') {
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this.cursor.visible = true
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}
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}
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write (text) {
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this.parser.write(text)
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this.scheduleLoad()
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}
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serialize () {
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let serialized = 'S'
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serialized += encode2B(this.height) + encode2B(this.width)
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serialized += encode2B(this.cursor.y) + encode2B(this.cursor.x)
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let attributes = +this.cursor.visible
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attributes |= (3 << 5) * +this.trackMouse // track mouse controls both
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attributes |= 3 << 7 // buttons/links always visible
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attributes |= (this.cursor.style << 9)
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serialized += encode3B(attributes)
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let lastStyle = null
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let index = 0
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for (let cell of this.screen) {
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let style = cell[1]
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if (this.rainbow) {
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let x = index % this.width
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let y = Math.floor(index / this.width)
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style = (style & 0xFF0000) | getRainbowColor((x + y) / 10 + Date.now() / 1000)
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index++
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}
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if (style !== lastStyle) {
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let foreground = style & 0xFF
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let background = (style >> 8) & 0xFF
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let attributes = (style >> 16) & 0xFF
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let setForeground = foreground !== (lastStyle & 0xFF)
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let setBackground = background !== ((lastStyle >> 8) & 0xFF)
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let setAttributes = attributes !== ((lastStyle >> 16) & 0xFF)
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if (setForeground && setBackground) serialized += '\x03' + encode3B(style & 0xFFFF)
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else if (setForeground) serialized += '\x05' + encode2B(foreground)
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else if (setBackground) serialized += '\x06' + encode2B(background)
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if (setAttributes) serialized += '\x04' + encode2B(attributes)
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lastStyle = style
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}
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serialized += cell[0]
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}
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return serialized
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}
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scheduleLoad () {
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clearTimeout(this._scheduledLoad)
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if (this._lastLoad < Date.now() - TERM_MIN_DRAW_DELAY) {
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this.termScreen.load(this.serialize(), this.theme)
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} else {
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this._scheduledLoad = setTimeout(() => {
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this.termScreen.load(this.serialize())
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}, TERM_MIN_DRAW_DELAY - this._lastLoad)
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}
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}
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rainbowTimer () {
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if (!this.rainbow) return
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clearInterval(this._rainbowTimer)
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this._rainbowTimer = setInterval(() => {
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if (this.rainbow) this.scheduleLoad()
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}, 50)
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}
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}
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class Process extends EventEmitter {
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write (data) {
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this.emit('in', data)
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}
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destroy () {
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// death.
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this.emit('exit', 0)
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}
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run () {
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// noop
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}
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}
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let demoData = {
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buttons: {
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1: '',
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2: '',
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3: '',
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4: '',
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5: function (terminal, shell) {
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if (shell.child) shell.child.destroy()
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let chars = 'info\r'
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let loop = function () {
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shell.write(chars[0])
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chars = chars.substr(1)
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if (chars) setTimeout(loop, 100)
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}
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setTimeout(loop, 200)
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}
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},
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mouseReceiver: null
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}
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let demoshIndex = {
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clear: class Clear extends Process {
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run () {
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this.emit('write', '\x1b[2J\x1b[1;1H')
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this.destroy()
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}
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},
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screenfetch: class Screenfetch extends Process {
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run () {
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let image = `
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###. ESPTerm Demo
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'###. Hostname: ${window.location.hostname}
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'###. Shell: ESPTerm Demo Shell
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'###. Resolution: 80x25@${window.devicePixelRatio}x
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:###-
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.###'
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.###'
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.###' ###############
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###' ###############
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`.split('\n').filter(line => line.trim())
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let chars = ''
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for (let y = 0; y < image.length; y++) {
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for (let x = 0; x < 80; x++) {
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if (image[y][x]) {
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chars += `\x1b[38;5;${getRainbowColor((x + y) / 10)}m${image[y][x]}`
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} else chars += ' '
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}
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}
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this.emit('write', '\r\n\x1b[?25l')
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let loop = () => {
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this.emit('write', chars.substr(0, 80))
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chars = chars.substr(80)
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if (chars.length) setTimeout(loop, 50)
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else {
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this.emit('write', '\r\n\x1b[?25h')
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this.destroy()
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}
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}
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loop()
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}
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},
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'local-echo': class LocalEcho extends Process {
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run (...args) {
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if (!args.includes('--suppress-note')) {
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this.emit('write', '\x1b[38;5;239mNote: not all terminal features are supported or and may not work as expected in this demo\x1b[0m\r\n')
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}
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}
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write (data) {
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this.emit('write', data)
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}
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},
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'info': class Info extends Process {
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run (...args) {
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let fast = args.includes('--fast')
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this.showSplash().then(() => {
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this.printText(fast)
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})
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}
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showSplash () {
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let splash = `
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-#####- -###*..#####- ######-
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-#* -#- .## .##. *#-
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-##### .-###*..#####- *#- -*##*- #*-#--#**#-*##-
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-#* -#-.##. *#- *##@#* ##. -#* *# .#*
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-#####--####- .##. *#- -*#@@- ##. -#* *# .#*
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`.split('\n').filter(line => line.trim())
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let levels = {
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' ': -231,
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'.': 4,
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'-': 8,
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'*': 17,
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'#': 24
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}
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let characters = {
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' ': ' ',
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'.': '░',
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'-': '▒',
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'*': '▓',
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'#': '█'
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}
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for (let i in splash) {
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if (splash[i].length < 79) splash[i] += ' '.repeat(79 - splash[i].length)
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}
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this.emit('write', '\r\n'.repeat(splash.length + 1))
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this.emit('write', '\x1b[A'.repeat(splash.length))
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this.emit('write', '\x1b[?25l')
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let cursorX = 0
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let cursorY = 0
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let moveTo = (x, y) => {
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let moveX = x - cursorX
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let moveY = y - cursorY
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this.emit('write', `\x1b[${Math.abs(moveX)}${moveX > 0 ? 'C' : 'D'}`)
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this.emit('write', `\x1b[${Math.abs(moveY)}${moveY > 0 ? 'B' : 'A'}`)
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cursorX = x
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cursorY = y
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}
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let drawCell = (x, y) => {
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moveTo(x, y)
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if (splash[y][x] === '@') {
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this.emit('write', '\x1b[48;5;8m\x1b[38;5;255m▄\b')
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} else {
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let level = 231 + levels[splash[y][x]]
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let character = characters[splash[y][x]]
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this.emit('write', `\x1b[48;5;${level}m\x1b[38;5;${level}m${character}\b`)
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}
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}
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return new Promise((resolve, reject) => {
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const self = this
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let x = 14
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let cycles = 0
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let loop = function () {
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for (let y = 0; y < splash.length; y++) {
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let dx = x - y
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if (dx > 0) drawCell(dx, y)
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}
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if (++x < 79) {
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if (++cycles >= 3) {
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setTimeout(loop, 20)
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cycles = 0
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} else loop()
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} else {
|
|
moveTo(0, splash.length)
|
|
self.emit('write', '\x1b[m\x1b[?25h')
|
|
resolve()
|
|
}
|
|
}
|
|
loop()
|
|
})
|
|
}
|
|
printText (fast = false) {
|
|
// lots of printing
|
|
let parts = [
|
|
'',
|
|
' ESPTerm is a VT100-like terminal emulator running on the ESP8266 WiFi chip.',
|
|
'',
|
|
' \x1b[93mThis is an online demo of the web user interface, simulating a simple ',
|
|
' terminal in your browser.\x1b[m',
|
|
'',
|
|
' Type \x1b[92mls\x1b[m to list available commands.',
|
|
' Use the \x1b[94mlinks\x1b[m below this screen for a demo of the options and more info.',
|
|
''
|
|
]
|
|
|
|
if (fast) {
|
|
this.emit('write', parts.join('\r\n') + '\r\n')
|
|
this.destroy()
|
|
} else {
|
|
const self = this
|
|
let loop = function () {
|
|
self.emit('write', parts.shift() + '\r\n')
|
|
if (parts.length) setTimeout(loop, 17)
|
|
else self.destroy()
|
|
}
|
|
loop()
|
|
}
|
|
}
|
|
},
|
|
colors: class PrintColors extends Process {
|
|
run () {
|
|
this.emit('write', '\r\n')
|
|
let fgtext = 'foreground-color'
|
|
this.emit('write', ' ')
|
|
for (let i = 0; i < 16; i++) {
|
|
this.emit('write', '\x1b[' + (i < 8 ? `3${i}` : `9${i - 8}`) + 'm')
|
|
this.emit('write', fgtext[i] + ' ')
|
|
}
|
|
this.emit('write', '\r\n ')
|
|
for (let i = 0; i < 16; i++) {
|
|
this.emit('write', '\x1b[' + (i < 8 ? `4${i}` : `10${i - 8}`) + 'm ')
|
|
}
|
|
this.emit('write', '\x1b[m\r\n')
|
|
for (let r = 0; r < 6; r++) {
|
|
this.emit('write', ' ')
|
|
for (let g = 0; g < 6; g++) {
|
|
for (let b = 0; b < 6; b++) {
|
|
this.emit('write', `\x1b[48;5;${16 + r * 36 + g * 6 + b}m `)
|
|
}
|
|
this.emit('write', '\x1b[m')
|
|
}
|
|
this.emit('write', '\r\n')
|
|
}
|
|
this.emit('write', ' ')
|
|
for (let g = 0; g < 24; g++) {
|
|
this.emit('write', `\x1b[48;5;${232 + g}m `)
|
|
}
|
|
this.emit('write', '\x1b[m\r\n\n')
|
|
this.destroy()
|
|
}
|
|
},
|
|
ls: class ListCommands extends Process {
|
|
run () {
|
|
this.emit('write', '\x1b[92mList of demo commands\x1b[m\r\n')
|
|
for (let i in demoshIndex) {
|
|
if (typeof demoshIndex[i] === 'string') continue
|
|
this.emit('write', i + '\r\n')
|
|
}
|
|
this.destroy()
|
|
}
|
|
},
|
|
theme: class SetTheme extends Process {
|
|
constructor (shell) {
|
|
super()
|
|
this.shell = shell
|
|
}
|
|
run (...args) {
|
|
let theme = args[0] | 0
|
|
if (!args.length || !Number.isFinite(theme) || theme < 0 || theme > 5) {
|
|
this.emit('write', '\x1b[31mUsage: theme [0–5]\r\n')
|
|
this.destroy()
|
|
return
|
|
}
|
|
this.shell.terminal.theme = theme
|
|
// HACK: reset drawn screen to prevent only partly redrawn screen
|
|
this.shell.terminal.termScreen.drawnScreenFG = []
|
|
this.emit('write', '')
|
|
this.destroy()
|
|
}
|
|
},
|
|
cursor: class SetCursor extends Process {
|
|
run (...args) {
|
|
let steady = args.includes('--steady')
|
|
if (args.includes('block')) {
|
|
this.emit('write', `\x1b[${0 + 2 * steady} q`)
|
|
} else if (args.includes('line')) {
|
|
this.emit('write', `\x1b[${3 + steady} q`)
|
|
} else if (args.includes('bar') || args.includes('beam')) {
|
|
this.emit('write', `\x1b[${5 + steady} q`)
|
|
} else {
|
|
this.emit('write', '\x1b[31mUsage: cursor [block|line|bar] [--steady]\r\n')
|
|
}
|
|
this.destroy()
|
|
}
|
|
},
|
|
rainbow: class ToggleRainbow extends Process {
|
|
constructor (shell) {
|
|
super()
|
|
this.shell = shell
|
|
}
|
|
run () {
|
|
this.shell.terminal.rainbow = !this.shell.terminal.rainbow
|
|
this.shell.terminal.rainbowTimer()
|
|
this.emit('write', '')
|
|
this.destroy()
|
|
}
|
|
},
|
|
mouse: class ShowMouse extends Process {
|
|
constructor (shell) {
|
|
super()
|
|
this.shell = shell
|
|
}
|
|
run () {
|
|
this.shell.terminal.trackMouse = true
|
|
demoData.mouseReceiver = this
|
|
this.randomData = []
|
|
this.highlighted = {}
|
|
let characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
|
|
for (let i = 0; i < 23; i++) {
|
|
let line = ''
|
|
for (let j = 0; j < 79; j++) {
|
|
line += characters[Math.floor(characters.length * Math.random())]
|
|
}
|
|
this.randomData.push(line)
|
|
}
|
|
this.scrollOffset = 0
|
|
this.render()
|
|
}
|
|
render () {
|
|
this.emit('write', '\x1b[m\x1b[2J\x1b[1;1H')
|
|
this.emit('write', '\x1b[97m\x1b[1mMouse Demo\r\n\x1b[mMouse movement, clicking and scrolling!')
|
|
|
|
// render random data for scrolling
|
|
for (let y = 0; y < 23; y++) {
|
|
let index = y + this.scrollOffset
|
|
// proper modulo:
|
|
index = ((index % this.randomData.length) + this.randomData.length) % this.randomData.length
|
|
let line = this.randomData[index]
|
|
let lineData = `\x1b[${3 + y};1H\x1b[38;5;239m`
|
|
for (let x in line) {
|
|
if (this.highlighted[(y + 2) * 80 + (+x)]) lineData += '\x1b[97m'
|
|
lineData += line[x]
|
|
if (this.highlighted[(y + 2) * 80 + (+x)]) lineData += '\x1b[38;5;239m'
|
|
}
|
|
this.emit('write', lineData)
|
|
}
|
|
|
|
// move cursor to mouse
|
|
if (this.mouse) {
|
|
this.emit('write', `\x1b[${this.mouse.y + 1};${this.mouse.x + 1}H`)
|
|
}
|
|
}
|
|
mouseMove (x, y) {
|
|
this.mouse = { x, y }
|
|
this.render()
|
|
}
|
|
mouseDown (x, y, button) {
|
|
if (button === 4) this.scrollOffset--
|
|
else if (button === 5) this.scrollOffset++
|
|
else this.highlighted[y * 80 + x] = !this.highlighted[y * 80 + x]
|
|
this.render()
|
|
}
|
|
mouseUp (x, y, button) {}
|
|
destroy () {
|
|
this.shell.terminal.write('\x1b[2J\x1b[1;1H')
|
|
this.shell.terminal.trackMouse = false
|
|
if (demoData.mouseReceiver === this) demoData.mouseReceiver = null
|
|
super.destroy()
|
|
}
|
|
},
|
|
sudo: class Sudo extends Process {
|
|
constructor (shell) {
|
|
super()
|
|
this.shell = shell
|
|
}
|
|
run (...args) {
|
|
if (args.length === 0) {
|
|
this.emit('write', '\x1b[31mUsage: sudo <command>\x1b[m\r\n')
|
|
this.destroy()
|
|
} else if (args.length === 4 && args.join(' ').toLowerCase() === 'make me a sandwich') {
|
|
const b = '\x1b[33m'
|
|
const r = '\x1b[0m'
|
|
const l = '\x1b[32m'
|
|
const c = '\x1b[38;5;229m'
|
|
const h = '\x1b[38;5;225m'
|
|
this.emit('write',
|
|
` ${b}_.---._\r\n` +
|
|
` _.-~ ~-._\r\n` +
|
|
` _.-~ ~-._\r\n` +
|
|
` _.-~ ~---._\r\n` +
|
|
` _.-~ ~\\\r\n` +
|
|
` .-~ _.;\r\n` +
|
|
` :-._ _.-~ ./\r\n` +
|
|
` \`-._~-._ _..__.-~ _.-~\r\n` +
|
|
` ${c}/ ${b}~-._~-._ / .__..--${c}~-${l}---._\r\n` +
|
|
`${c} \\_____(_${b};-._\\. _.-~_/${c} ~)${l}.. . \\\r\n` +
|
|
`${l} /(_____ ${b}\\\`--...--~_.-~${c}______..-+${l}_______)\r\n` +
|
|
`${l} .(_________/${b}\`--...--~/${l} _/ ${h} ${b}/\\\r\n` +
|
|
`${b} /-._${h} \\_ ${l}(___./_..-~${h}__.....${b}__..-~./\r\n` +
|
|
`${b} \`-._~-._${h} ~\\--------~ .-~${b}_..__.-~ _.-~\r\n` +
|
|
`${b} ~-._~-._ ${h}~---------\` ${b}/ .__..--~\r\n` +
|
|
`${b} ~-._\\. _.-~_/\r\n` +
|
|
`${b} \\\`--...--~_.-~\r\n` +
|
|
`${b} \`--...--~${r}\r\n`)
|
|
this.destroy()
|
|
} else {
|
|
let name = args.shift()
|
|
if (this.shell.index[name]) {
|
|
let Process = this.shell.index[name]
|
|
if (Process instanceof Function) {
|
|
let child = new Process(this)
|
|
let write = data => this.emit('write', data)
|
|
child.on('write', write)
|
|
child.on('exit', code => {
|
|
child.off('write', write)
|
|
this.destroy()
|
|
})
|
|
child.run(...args)
|
|
} else {
|
|
this.emit('write', Process)
|
|
this.destroy()
|
|
}
|
|
} else {
|
|
this.emit('write', `sudo: ${name}: command not found\r\n`)
|
|
this.destroy()
|
|
}
|
|
}
|
|
}
|
|
},
|
|
make: class Make extends Process {
|
|
run (...args) {
|
|
if (args.length === 0) this.emit('write', '\x1b[31mmake: *** No targets specified. Stop.\x1b[0m\r\n')
|
|
else if (args.length === 3 && args.join(' ').toLowerCase() === 'me a sandwich') {
|
|
this.emit('write', '\x1b[31mmake: me a sandwich : Permission denied\x1b[0m\r\n')
|
|
} else {
|
|
this.emit('write', `\x1b[31mmake: *** No rule to make target '${args.join(' ').toLowerCase()}'. Stop.\x1b[0m\r\n`)
|
|
}
|
|
this.destroy()
|
|
}
|
|
},
|
|
pwd: '/this/is/a/demo\r\n',
|
|
cd: '\x1b[38;5;239mNo directories to change to\r\n',
|
|
whoami: `${window.navigator.userAgent}\r\n`,
|
|
hostname: `${window.location.hostname}`,
|
|
uname: 'ESPTerm Demo\r\n',
|
|
mkdir: '\x1b[38;5;239mDid not create a directory because this is a demo.\r\n',
|
|
rm: '\x1b[38;5;239mDid not delete anything because this is a demo.\r\n',
|
|
cp: '\x1b[38;5;239mNothing to copy because this is a demo.\r\n',
|
|
mv: '\x1b[38;5;239mNothing to move because this is a demo.\r\n',
|
|
ln: '\x1b[38;5;239mNothing to link because this is a demo.\r\n',
|
|
touch: '\x1b[38;5;239mNothing to touch\r\n',
|
|
exit: '\x1b[38;5;239mNowhere to go\r\n',
|
|
github: class GoToGithub extends Process {
|
|
run () {
|
|
window.open('https://github.com/espterm/espterm-firmware')
|
|
this.destroy()
|
|
}
|
|
}
|
|
}
|
|
|
|
class DemoShell {
|
|
constructor (terminal, printInfo) {
|
|
this.terminal = terminal
|
|
this.terminal.reset()
|
|
this.parser = new ANSIParser((...args) => this.handleParsed(...args))
|
|
this.history = []
|
|
this.historyIndex = 0
|
|
this.cursorPos = 0
|
|
this.child = null
|
|
this.index = demoshIndex
|
|
|
|
if (printInfo) this.run('info')
|
|
else this.prompt()
|
|
}
|
|
write (text) {
|
|
if (this.child) {
|
|
if (text.codePointAt(0) === 3) this.child.destroy()
|
|
else this.child.write(text)
|
|
} else this.parser.write(text)
|
|
}
|
|
prompt (success = true) {
|
|
if (this.terminal.cursor.x !== 0) this.terminal.write('\x1b[m\x1b[38;5;238m⏎\r\n')
|
|
this.terminal.write('\x1b[34;1mdemosh \x1b[m')
|
|
if (!success) this.terminal.write('\x1b[31m')
|
|
this.terminal.write('$ \x1b[m')
|
|
this.history.unshift('')
|
|
this.cursorPos = 0
|
|
}
|
|
copyFromHistoryIndex () {
|
|
if (!this.historyIndex) return
|
|
let current = this.history[this.historyIndex]
|
|
this.history[0] = current
|
|
this.historyIndex = 0
|
|
}
|
|
handleParsed (action, ...args) {
|
|
this.terminal.write('\b\x1b[P'.repeat(this.cursorPos))
|
|
if (action === 'write') {
|
|
this.copyFromHistoryIndex()
|
|
this.history[0] = this.history[0].substr(0, this.cursorPos) + args[0] + this.history[0].substr(this.cursorPos)
|
|
this.cursorPos++
|
|
} else if (action === 'back') {
|
|
this.copyFromHistoryIndex()
|
|
this.history[0] = this.history[0].substr(0, this.cursorPos - 1) + this.history[0].substr(this.cursorPos)
|
|
this.cursorPos--
|
|
if (this.cursorPos < 0) this.cursorPos = 0
|
|
} else if (action === 'move-cursor-x') {
|
|
this.cursorPos = Math.max(0, Math.min(this.history[this.historyIndex].length, this.cursorPos + args[0]))
|
|
} else if (action === 'delete-line') {
|
|
this.copyFromHistoryIndex()
|
|
this.history[0] = ''
|
|
this.cursorPos = 0
|
|
} else if (action === 'delete-word') {
|
|
this.copyFromHistoryIndex()
|
|
let words = this.history[0].substr(0, this.cursorPos).split(' ')
|
|
words.pop()
|
|
this.history[0] = words.join(' ') + this.history[0].substr(this.cursorPos)
|
|
this.cursorPos = words.join(' ').length
|
|
} else if (action === 'move-cursor-y') {
|
|
this.historyIndex -= args[0]
|
|
if (this.historyIndex < 0) this.historyIndex = 0
|
|
if (this.historyIndex >= this.history.length) this.historyIndex = this.history.length - 1
|
|
this.cursorPos = this.history[this.historyIndex].length
|
|
}
|
|
|
|
this.terminal.write(this.history[this.historyIndex])
|
|
this.terminal.write('\b'.repeat(this.history[this.historyIndex].length))
|
|
this.terminal.moveForward(this.cursorPos)
|
|
this.terminal.write('') // dummy. Apply the moveFoward
|
|
|
|
if (action === 'return') {
|
|
this.terminal.write('\r\n')
|
|
this.parse(this.history[this.historyIndex])
|
|
}
|
|
}
|
|
parse (input) {
|
|
if (input === 'help') input = 'info'
|
|
// TODO: basic chaining (i.e. semicolon)
|
|
this.run(input)
|
|
}
|
|
run (command) {
|
|
let parts = ['']
|
|
|
|
let inQuote = false
|
|
for (let character of command.trim()) {
|
|
if (inQuote && character !== inQuote) {
|
|
parts[parts.length - 1] += character
|
|
} else if (inQuote) {
|
|
inQuote = false
|
|
} else if (character === '"' || character === "'") {
|
|
inQuote = character
|
|
} else if (character.match(/\s/)) {
|
|
if (parts[parts.length - 1]) parts.push('')
|
|
} else parts[parts.length - 1] += character
|
|
}
|
|
|
|
let name = parts.shift()
|
|
|
|
if (name in this.index) {
|
|
this.spawn(name, parts)
|
|
} else {
|
|
this.terminal.write(`demosh: Unknown command: ${name}\r\n`)
|
|
this.prompt(false)
|
|
}
|
|
}
|
|
spawn (name, args = []) {
|
|
let Process = this.index[name]
|
|
if (Process instanceof Function) {
|
|
this.child = new Process(this)
|
|
let write = data => this.terminal.write(data)
|
|
this.child.on('write', write)
|
|
this.child.on('exit', code => {
|
|
if (this.child) this.child.off('write', write)
|
|
this.child = null
|
|
this.prompt(!code)
|
|
})
|
|
this.child.run(...args)
|
|
} else {
|
|
this.terminal.write(Process)
|
|
this.prompt()
|
|
}
|
|
}
|
|
}
|
|
|
|
window.demoInterface = {
|
|
input (data) {
|
|
let type = data[0]
|
|
let content = data.substr(1)
|
|
|
|
if (type === 's') {
|
|
this.shell.write(content)
|
|
} else if (type === 'b') {
|
|
let button = content.charCodeAt(0)
|
|
let action = demoData.buttons[button]
|
|
if (action) {
|
|
if (typeof action === 'string') this.shell.write(action)
|
|
else if (action instanceof Function) action(this.terminal, this.shell)
|
|
}
|
|
} else if (type === 'm' || type === 'p' || type === 'r') {
|
|
let row = parse2B(content, 0)
|
|
let column = parse2B(content, 2)
|
|
let button = parse2B(content, 4)
|
|
let modifiers = parse2B(content, 6)
|
|
|
|
if (demoData.mouseReceiver) {
|
|
if (type === 'm') demoData.mouseReceiver.mouseMove(column, row, button, modifiers)
|
|
else if (type === 'p') demoData.mouseReceiver.mouseDown(column, row, button, modifiers)
|
|
else if (type === 'r') demoData.mouseReceiver.mouseUp(column, row, button, modifiers)
|
|
}
|
|
}
|
|
},
|
|
didInit: false,
|
|
init (screen) {
|
|
if (this.didInit) return
|
|
this.didInit = true
|
|
this.terminal = new ScrollingTerminal(screen)
|
|
this.shell = new DemoShell(this.terminal, true)
|
|
}
|
|
}
|
|
|