93 lines
3.1 KiB
Kotlin
93 lines
3.1 KiB
Kotlin
package org.thoughtcrime.securesms.util
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import android.Manifest
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import android.content.pm.PackageManager
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import android.os.Bundle
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.core.content.ContextCompat
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import androidx.fragment.app.Fragment
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import com.tbruyelle.rxpermissions2.RxPermissions
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import network.loki.messenger.R
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import org.thoughtcrime.securesms.qr.ScanListener
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class ScanQRCodeWrapperFragment : Fragment(), ScanQRCodePlaceholderFragmentDelegate, ScanListener {
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companion object {
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const val FRAGMENT_TAG = "ScanQRCodeWrapperFragment_FRAGMENT_TAG"
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}
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var delegate: ScanQRCodeWrapperFragmentDelegate? = null
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var message: CharSequence = ""
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var enabled: Boolean = true
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set(value) {
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val shouldUpdate = field != value // update if value changes (view appears or disappears)
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field = value
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if (shouldUpdate) {
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update()
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}
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}
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@Deprecated("Deprecated in Java")
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override fun setUserVisibleHint(isVisibleToUser: Boolean) {
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super.setUserVisibleHint(isVisibleToUser)
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enabled = isVisibleToUser
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}
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override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
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return inflater.inflate(R.layout.fragment_scan_qr_code_wrapper, container, false)
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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update()
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}
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private fun update() {
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if (!this.isAdded) return
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val fragment: Fragment
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if (!enabled) {
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val manager = childFragmentManager
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manager.findFragmentByTag(FRAGMENT_TAG)?.let { existingFragment ->
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// remove existing camera fragment (if switching back to other page)
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manager.beginTransaction().remove(existingFragment).commit()
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}
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return
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}
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if (ContextCompat.checkSelfPermission(requireActivity(), Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
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val scanQRCodeFragment = ScanQRCodeFragment()
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scanQRCodeFragment.scanListener = this
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scanQRCodeFragment.message = message
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fragment = scanQRCodeFragment
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} else {
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val scanQRCodePlaceholderFragment = ScanQRCodePlaceholderFragment()
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scanQRCodePlaceholderFragment.delegate = this
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fragment = scanQRCodePlaceholderFragment
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}
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val transaction = childFragmentManager.beginTransaction()
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transaction.replace(R.id.fragmentContainer, fragment, FRAGMENT_TAG)
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transaction.commit()
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}
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override fun requestCameraAccess() {
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@SuppressWarnings("unused")
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val unused = RxPermissions(this).request(Manifest.permission.CAMERA).subscribe { isGranted ->
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if (isGranted) {
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update()
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}
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}
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}
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override fun onQrDataFound(data: String) {
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activity?.runOnUiThread {
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delegate?.handleQRCodeScanned(data)
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}
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}
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}
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fun interface ScanQRCodeWrapperFragmentDelegate {
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fun handleQRCodeScanned(string: String)
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} |