Merge branch 'master' of https://git.ngsk.tech/linweidong/besure_app
commit
c251b49322
@ -1,203 +0,0 @@
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import { onHide, onShow, onUnload } from '@dcloudio/uni-app'
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const androidKeyCodeMap = {
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7: '0',
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8: '1',
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9: '2',
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10: '3',
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11: '4',
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12: '5',
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13: '6',
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14: '7',
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15: '8',
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16: '9',
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29: 'A',
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30: 'B',
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31: 'C',
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32: 'D',
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33: 'E',
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34: 'F',
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35: 'G',
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36: 'H',
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37: 'I',
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38: 'J',
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39: 'K',
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40: 'L',
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41: 'M',
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42: 'N',
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43: 'O',
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44: 'P',
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45: 'Q',
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46: 'R',
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47: 'S',
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48: 'T',
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49: 'U',
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50: 'V',
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51: 'W',
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52: 'X',
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53: 'Y',
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54: 'Z',
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55: ',',
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56: '.',
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69: '-',
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70: '=',
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71: '[',
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72: ']',
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73: '\\',
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74: ';',
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75: "'",
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76: '/',
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81: '+'
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}
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export function useScannerInput(options = {}) {
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const minLength = Number(options.minLength ?? 3)
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const commitDelay = Number(options.commitDelay ?? 120)
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const uppercase = options.uppercase !== false
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const ignoreInputTarget = options.ignoreInputTarget !== false
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const hideKeyboardOnScan = options.hideKeyboardOnScan !== false
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const hideKeyboardOnLeave = options.hideKeyboardOnLeave !== false
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const onScan = typeof options.onScan === 'function' ? options.onScan : () => {}
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let scannerBuffer = ''
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let scannerTimer = null
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let scannerListening = false
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let plusKeyListening = false
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function getScannerEventTarget() {
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if (typeof document !== 'undefined') return document
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if (typeof window !== 'undefined') return window
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return null
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}
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function registerScannerListener() {
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if (scannerListening) return
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const target = getScannerEventTarget()
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if (target?.addEventListener) {
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target.addEventListener('keydown', handleScannerKeydown)
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scannerListening = true
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}
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registerPlusKeyListener()
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}
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function unregisterScannerListener() {
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const target = getScannerEventTarget()
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if (scannerListening && target?.removeEventListener) {
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target.removeEventListener('keydown', handleScannerKeydown)
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}
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scannerListening = false
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unregisterPlusKeyListener()
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clearScannerBuffer()
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if (hideKeyboardOnLeave) hideSoftKeyboard()
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}
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function registerPlusKeyListener() {
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if (plusKeyListening) return
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if (typeof plus === 'undefined' || !plus?.key?.addEventListener) return
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plus.key.addEventListener('keydown', handlePlusScannerKeydown)
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plusKeyListening = true
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}
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function unregisterPlusKeyListener() {
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if (!plusKeyListening) return
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if (typeof plus !== 'undefined' && plus?.key?.removeEventListener) {
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plus.key.removeEventListener('keydown', handlePlusScannerKeydown)
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}
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plusKeyListening = false
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}
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function handlePlusScannerKeydown(event) {
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handleScannerKeydown({ ...event, isPlusKeyEvent: true })
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}
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function handleScannerKeydown(event) {
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if (ignoreInputTarget) {
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const targetTag = String(event?.target?.tagName || '').toLowerCase()
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if (targetTag === 'input' || targetTag === 'textarea') return
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}
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const key = normalizeScannerKey(event)
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if (!key) return
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if (key === 'Enter') {
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commitScannerBuffer()
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return
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}
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scannerBuffer += key
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if (scannerTimer) clearTimeout(scannerTimer)
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scannerTimer = setTimeout(() => {
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commitScannerBuffer()
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}, commitDelay)
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}
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function normalizeScannerKey(event) {
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if (event?.ctrlKey || event?.altKey || event?.metaKey) return ''
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if (isAndroidPlusKeyEvent(event)) return normalizeAndroidKeyCode(event)
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const key = event?.key
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if (key === 'Enter' || key === 'Tab') return 'Enter'
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if (typeof key === 'string' && key.length === 1) return uppercase ? key.toUpperCase() : key
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const code = Number(event?.keyCode || event?.which || 0)
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if (code === 13 || code === 9) return 'Enter'
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if (code >= 48 && code <= 90) {
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const value = String.fromCharCode(code)
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return uppercase ? value.toUpperCase() : value
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}
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if (code >= 96 && code <= 105) return String(code - 96)
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if (code === 189 || code === 109) return '-'
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if (code === 190 || code === 110) return '.'
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return ''
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}
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function isAndroidPlusKeyEvent(event) {
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return Boolean(event?.isPlusKeyEvent)
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}
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function normalizeAndroidKeyCode(event) {
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const code = Number(event?.keyCode || event?.which || 0)
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if (code === 66 || code === 61 || code === 160) return 'Enter'
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const value = androidKeyCodeMap[code] || ''
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return uppercase ? value.toUpperCase() : value.toLowerCase()
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}
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function clearScannerBuffer() {
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scannerBuffer = ''
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if (scannerTimer) {
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clearTimeout(scannerTimer)
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scannerTimer = null
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}
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}
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async function commitScannerBuffer() {
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const value = scannerBuffer.trim()
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clearScannerBuffer()
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if (value.length < minLength) return
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if (hideKeyboardOnScan) hideSoftKeyboard()
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await onScan(value)
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}
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function hideSoftKeyboard() {
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try {
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uni.hideKeyboard()
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} catch (e) {}
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}
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onShow(() => {
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registerScannerListener()
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})
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onHide(() => {
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unregisterScannerListener()
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})
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onUnload(() => {
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unregisterScannerListener()
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})
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return {
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clearScannerBuffer,
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registerScannerListener,
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unregisterScannerListener
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}
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}
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