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146 lines
3.6 KiB
146 lines
3.6 KiB
/** File upload utility */
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window.TermUpl = (function () {
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let lines, // array of lines without newlines
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line_i, // current line index
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fuTout, // timeout handle for line sending
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send_delay_ms, // delay between lines (ms)
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nl_str, // newline string to use
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curLine, // current line (when using fuOil)
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inline_pos // Offset in line (for long lines)
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// lines longer than this are split to chunks
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// sending a super-ling string through the socket is not a good idea
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const MAX_LINE_LEN = 128
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function fuOpen () {
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fuStatus('Ready...')
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Modal.show('#fu_modal', onClose)
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$('#fu_form').toggleClass('busy', false)
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Input.blockKeys(true)
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}
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function onClose () {
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console.log('Upload modal closed.')
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clearTimeout(fuTout)
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line_i = 0
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Input.blockKeys(false)
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}
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function fuStatus (msg) {
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qs('#fu_prog').textContent = msg
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}
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function fuSend () {
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let v = qs('#fu_text').value
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if (!v.length) {
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fuClose()
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return
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}
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lines = v.split('\n')
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line_i = 0
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inline_pos = 0 // offset in line
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send_delay_ms = qs('#fu_delay').value
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// sanitize - 0 causes overflows
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if (send_delay_ms < 0) {
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send_delay_ms = 0
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qs('#fu_delay').value = send_delay_ms
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}
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nl_str = {
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'CR': '\r',
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'LF': '\n',
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'CRLF': '\r\n'
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}[qs('#fu_crlf').value]
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$('#fu_form').toggleClass('busy', true)
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fuStatus('Starting...')
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fuSendLine()
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}
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function fuSendLine () {
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if (!$('#fu_modal').hasClass('visible')) {
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// Modal is closed, cancel
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return
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}
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if (!Conn.canSend()) {
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// postpone
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fuTout = setTimeout(fuSendLine, 1)
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return
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}
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if (inline_pos === 0) {
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curLine = lines[line_i++] + nl_str
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}
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let chunk
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if ((curLine.length - inline_pos) <= MAX_LINE_LEN) {
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chunk = curLine.substr(inline_pos, MAX_LINE_LEN)
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inline_pos = 0
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} else {
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chunk = curLine.substr(inline_pos, MAX_LINE_LEN)
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inline_pos += MAX_LINE_LEN
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}
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if (!Input.sendString(chunk)) {
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fuStatus('FAILED!')
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return
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}
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let all = lines.length
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fuStatus(line_i + ' / ' + all + ' (' + (Math.round((line_i / all) * 1000) / 10) + '%)')
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if (lines.length > line_i || inline_pos > 0) {
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fuTout = setTimeout(fuSendLine, send_delay_ms)
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} else {
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closeWhenReady()
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}
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}
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function closeWhenReady () {
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if (!Conn.canSend()) {
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// stuck in XOFF still, wait to process...
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fuStatus('Waiting for Tx buffer...')
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setTimeout(closeWhenReady, 100)
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} else {
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fuStatus('Done.')
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// delay to show it
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setTimeout(function () {
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fuClose()
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}, 100)
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}
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}
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function fuClose () {
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Modal.hide('#fu_modal')
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}
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return {
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init: function () {
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qs('#fu_file').addEventListener('change', function (evt) {
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let reader = new FileReader()
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let file = evt.target.files[0]
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console.log('Selected file type: ' + file.type)
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if (!file.type.match(/text\/.*|application\/(json|csv|.*xml.*|.*script.*)/)) {
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// Deny load of blobs like img - can crash browser and will get corrupted anyway
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if (!confirm('This does not look like a text file: ' + file.type + '\nReally load?')) {
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qs('#fu_file').value = ''
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return
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}
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}
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reader.onload = function (e) {
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const txt = e.target.result.replace(/[\r\n]+/, '\n')
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qs('#fu_text').value = txt
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}
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console.log('Loading file...')
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reader.readAsText(file)
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}, false)
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},
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close: fuClose,
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start: fuSend,
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open: fuOpen
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}
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})()
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