Add back built-in QRCode Scanner

Author: BROBIRD

build.sbt

@@ -55,6 +55,7 @@ libraryDependencies ++=
   "com.twofortyfouram" % "android-plugin-api-for-locale" % "1.0.2" ::
   "dnsjava" % "dnsjava" % "2.1.7" ::
   "eu.chainfire" % "libsuperuser" % "1.0.0.+" ::
+  "me.dm7.barcodescanner" % "zxing" % "1.9.8" ::
   "net.glxn.qrgen" % "android" % "2.0" ::
   "com.squareup.okhttp3" % "okhttp" % "3.8.0" ::
   "com.google.code.findbugs" % "jsr305" % "1.3.+" ::

src/main/AndroidManifest.xml

@@ -1,12 +1,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools" package="com.github.shadowsocks"
-          android:versionCode="317"
+          android:versionCode="319"
           android:versionName="3.4.0.7">
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
     <uses-permission android:name="android.permission.NFC" />
+    <uses-permission android:name="android.permission.CAMERA" />
 
     <uses-feature android:name="android.hardware.touchscreen"
                   android:required="false"/>
@@ -16,6 +17,8 @@
                   android:required="false"/>
     <uses-feature android:name="android.software.leanback"
                   android:required="false"/>
+    <uses-feature android:name="android.hardware.camera"
+                  android:required="false"/>
 
     <uses-sdk
             android:minSdkVersion="16"

src/main/scala/com/github/shadowsocks/ProfileManagerActivity.scala

@@ -569,7 +569,7 @@ final class ProfileManagerActivity extends AppCompatActivity with OnMenuItemClic
         startActivityForResult(intent, 0)
     } catch {
         case _ : Throwable =>
-            val dialog = new AlertDialog.Builder(this, R.style.Theme_Material_Dialog_Alert)
+            /*val dialog = new AlertDialog.Builder(this, R.style.Theme_Material_Dialog_Alert)
               .setTitle(R.string.scan_qrcode_install_title)
               .setPositiveButton(android.R.string.yes, ((_, _) => {
                   val marketUri = Uri.parse("market://details?id=com.google.zxing.client.android")
@@ -586,7 +586,9 @@ final class ProfileManagerActivity extends AppCompatActivity with OnMenuItemClic
               .setNegativeButton(android.R.string.no, ((_, _) => finish()): DialogInterface.OnClickListener)
               .setMessage(R.string.scan_qrcode_install_text)
               .create()
-            dialog.show()
+            dialog.show()*/
+            menu.toggle(false)
+            startActivity(new Intent(this, classOf[ScannerActivity]))
     }
   }
 

src/main/scala/com/github/shadowsocks/ScannerActivity.scala

@@ -0,0 +1,92 @@
+
+package com.github.shadowsocks
+
+import android.app.{Activity, TaskStackBuilder}
+import android.content.Intent
+import android.content.pm.{PackageManager, ShortcutManager}
+import android.os.{Build, Bundle}
+import android.support.v4.app.ActivityCompat
+import android.support.v4.content.ContextCompat
+import android.support.v7.app.AppCompatActivity
+import android.support.v7.widget.Toolbar
+import android.text.TextUtils
+import android.widget.Toast
+import com.google.zxing.Result
+import com.github.shadowsocks.ShadowsocksApplication.app
+import com.github.shadowsocks.utils.Parser
+import me.dm7.barcodescanner.zxing.ZXingScannerView
+
+object ScannerActivity {
+  private final val MY_PERMISSIONS_REQUEST_CAMERA = 1
+}
+
+class ScannerActivity extends AppCompatActivity with ZXingScannerView.ResultHandler {
+  import ScannerActivity._
+
+  private var scannerView: ZXingScannerView = _
+
+  override def onRequestPermissionsResult(requestCode: Int, permissions: Array[String],
+    grantResults: Array[Int]) {
+    if (requestCode == MY_PERMISSIONS_REQUEST_CAMERA) {
+      // If request is cancelled, the result arrays are empty.
+      if (grantResults.length > 0
+        && grantResults(0) == PackageManager.PERMISSION_GRANTED) {
+          scannerView.setResultHandler(this)
+          scannerView.startCamera()
+      } else {
+        Toast.makeText(this, R.string.add_profile_scanner_permission_required, Toast.LENGTH_SHORT).show()
+        finish()
+      }
+    }
+  }
+
+  def navigateUp() {
+    val intent = getParentActivityIntent
+    if (shouldUpRecreateTask(intent) || isTaskRoot)
+    {
+      TaskStackBuilder.create(this).addNextIntentWithParentStack(intent).startActivities()
+    }
+    else finish()
+  }
+
+  override def onCreate(state: Bundle) {
+    super.onCreate(state)
+    setContentView(R.layout.layout_scanner)
+    val toolbar = findViewById(R.id.toolbar).asInstanceOf[Toolbar]
+    toolbar.setTitle(getTitle)
+    toolbar.setNavigationIcon(R.drawable.abc_ic_ab_back_material)
+    toolbar.setNavigationOnClickListener(_ => navigateUp())
+    scannerView = findViewById(R.id.scanner).asInstanceOf[ZXingScannerView]
+    if (Build.VERSION.SDK_INT >= 25) getSystemService(classOf[ShortcutManager]).reportShortcutUsed("scan")
+  }
+
+  override def onResume() {
+    super.onResume()
+    val permissionCheck = ContextCompat.checkSelfPermission(this,
+      android.Manifest.permission.CAMERA)
+    if (permissionCheck == PackageManager.PERMISSION_GRANTED) {
+      scannerView.setResultHandler(this) // Register ourselves as a handler for scan results.
+      scannerView.setAutoFocus(true)
+      scannerView.startCamera()          // Start camera on resume
+    } else {
+      ActivityCompat.requestPermissions(this,
+        Array(android.Manifest.permission.CAMERA), MY_PERMISSIONS_REQUEST_CAMERA)
+    }
+  }
+
+  override def onPause() {
+    super.onPause()
+    scannerView.stopCamera()           // Stop camera on pause
+  }
+
+  override def handleResult(rawResult: Result) = {    
+    val uri = rawResult.getText
+    if (!TextUtils.isEmpty(uri))
+    {
+      Parser.findAll(uri).foreach(app.profileManager.createProfile)
+      Parser.findAll_ssr(uri).foreach(app.profileManager.createProfile)
+    }
+    navigateUp()
+  }
+}
+