77 lines
2.1 KiB
JavaScript
77 lines
2.1 KiB
JavaScript
export const SCAN_BROADCAST_ACTION = 'android.intent.action.SCANRESULT'
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export const SCAN_BROADCAST_EXTRA = 'value'
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const DUPLICATE_WINDOW_MS = 80
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let receiver = null
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let activity = null
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let lastScan = { value: '', receivedAt: 0 }
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export function normalizeScanValue(value) {
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if (value === null || value === undefined) return ''
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return String(value).trim()
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}
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export function isDuplicateScan(value, receivedAt = Date.now()) {
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const duplicate = value === lastScan.value && receivedAt - lastScan.receivedAt < DUPLICATE_WINDOW_MS
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if (!duplicate) lastScan = { value, receivedAt }
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return duplicate
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}
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export function resetScanDeduplication() {
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lastScan = { value: '', receivedAt: 0 }
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}
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export function startScanBroadcast({ onScan, onError } = {}) {
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if (typeof onScan !== 'function') return () => {}
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// #ifdef APP-PLUS
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try {
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if (receiver) stopScanBroadcast()
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activity = plus.android.runtimeMainActivity()
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const IntentFilter = plus.android.importClass('android.content.IntentFilter')
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const filter = new IntentFilter()
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filter.addAction(SCAN_BROADCAST_ACTION)
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receiver = plus.android.implements('io.dcloud.feature.internal.reflect.BroadcastReceiver', {
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onReceive(context, intent) {
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try {
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plus.android.importClass(intent)
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const value = normalizeScanValue(intent.getStringExtra(SCAN_BROADCAST_EXTRA))
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if (!value || isDuplicateScan(value)) return
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onScan(value)
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} catch (error) {
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if (typeof onError === 'function') onError(error)
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}
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}
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})
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const Build = plus.android.importClass('android.os.Build')
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if (Build.VERSION.SDK_INT >= 33) {
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const Context = plus.android.importClass('android.content.Context')
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activity.registerReceiver(receiver, filter, Context.RECEIVER_EXPORTED)
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} else {
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activity.registerReceiver(receiver, filter)
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}
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} catch (error) {
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receiver = null
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activity = null
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if (typeof onError === 'function') onError(error)
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}
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// #endif
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return stopScanBroadcast
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}
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export function stopScanBroadcast() {
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// #ifdef APP-PLUS
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if (activity && receiver) {
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try {
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activity.unregisterReceiver(receiver)
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} catch (_) {}
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}
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// #endif
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receiver = null
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activity = null
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resetScanDeduplication()
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}
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