Keep password dialog displayed until correct password is entered or cancelled

This requires updates to Simple-Commons to be merged first
SimpleMobileTools/Simple-Commons#1725

Author: esensar

app/build.gradle

@@ -64,7 +64,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:db25f91be3'
+    implementation 'com.github.esensar:Simple-Commons:26a4275f9b'
     implementation 'com.github.tibbi:AndroidPdfViewer:e6a533125b'
     implementation 'com.github.Stericson:RootTools:df729dcb13'
     implementation 'com.github.Stericson:RootShell:1.6'

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/PDFViewerActivity.kt

@@ -27,6 +27,7 @@ import kotlinx.android.synthetic.main.activity_pdf_viewer.top_shadow
 class PDFViewerActivity : SimpleActivity() {
     private var realFilePath = ""
     private var isFullScreen = false
+    private var passwordDialog: EnterPasswordDialog? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         showTransparentTop = true
@@ -113,9 +114,9 @@ class PDFViewerActivity : SimpleActivity() {
                     // already entered a password and it was wrong
                     if (filePassword != null) {
                         showErrorToast(getString(R.string.invalid_password))
-                        finish()
+                        passwordDialog?.clearPassword()
                     } else {
-                        EnterPasswordDialog(
+                        passwordDialog = EnterPasswordDialog(
                             this,
                             callback = { password ->
                                 loadPdfViewer(uri, password)
@@ -130,6 +131,9 @@ class PDFViewerActivity : SimpleActivity() {
                     finish()
                 }
             }
+            .onLoad {
+                passwordDialog?.dismiss(notify = false)
+            }
             .load()
 
         showSystemUI(true)