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Diffstat (limited to 'src/com/android/browser/PermissionsActivity.java')
-rw-r--r-- | src/com/android/browser/PermissionsActivity.java | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/com/android/browser/PermissionsActivity.java b/src/com/android/browser/PermissionsActivity.java new file mode 100644 index 0000000..68f2b19 --- /dev/null +++ b/src/com/android/browser/PermissionsActivity.java @@ -0,0 +1,143 @@ +package com.android.browser; + +import android.Manifest; +import android.app.Activity; +import android.app.Dialog; +import android.app.AlertDialog; +import android.app.KeyguardManager; +import android.content.BroadcastReceiver; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.IntentFilter; +import android.content.SharedPreferences; +import android.content.SharedPreferences.Editor; +import android.content.pm.PackageManager; +import android.preference.PreferenceManager; +import android.os.Bundle; +import android.util.Log; +import android.view.KeyEvent; +import android.view.Window; +import android.view.WindowManager; +import com.android.browser.R; + +/** + * Activity that shows permissions request dialogs and handles lack of critical permissions. + */ +public class PermissionsActivity extends Activity { + private static final String TAG = "PermissionsActivity"; + + private static String PREF_HAS_SEEN_PERMISSIONS_DIALOGS = "pref_has_seen_permissions_dialogs"; + private static int PERMISSION_REQUEST_CODE = 1; + private static int RESULT_CODE_OK = 1; + private static int RESULT_CODE_FAILED = 2; + + private int mIndexPermissionRequestStorage; + private boolean mShouldRequestStoragePermission; + private int mNumPermissionsToRequest; + private boolean mFlagHasStoragePermission; + private SharedPreferences mPrefs; + + /** + * Close activity when secure app passes lock screen or screen turns + * off. + */ + private final BroadcastReceiver mShutdownReceiver = new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + Log.v(TAG, "received intent, finishing: " + intent.getAction()); + finish(); + } + }; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + mPrefs = PreferenceManager.getDefaultSharedPreferences(this); + } + + @Override + protected void onResume() { + super.onResume(); + mNumPermissionsToRequest = 0; + checkPermissions(); + } + + private void checkPermissions() { + if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) + != PackageManager.PERMISSION_GRANTED) { + mNumPermissionsToRequest++; + mShouldRequestStoragePermission = true; + } else { + mFlagHasStoragePermission = true; + } + + if (mNumPermissionsToRequest != 0) { + if (!mPrefs.getBoolean(PREF_HAS_SEEN_PERMISSIONS_DIALOGS, false)) { + buildPermissionsRequest(); + } else { + // Permissions dialog has already been shown + // and we're still missing permissions. + handlePermissionsFailure(); + } + } else { + handlePermissionsSuccess(); + } + } + + private void buildPermissionsRequest() { + String[] permissionsToRequest = new String[mNumPermissionsToRequest]; + int permissionsRequestIndex = 0; + + if (mShouldRequestStoragePermission) { + permissionsToRequest[permissionsRequestIndex] = Manifest.permission.READ_EXTERNAL_STORAGE; + mIndexPermissionRequestStorage = permissionsRequestIndex; + permissionsRequestIndex++; + } + + Log.v(TAG, "requestPermissions count: " + permissionsToRequest.length); + requestPermissions(permissionsToRequest, PERMISSION_REQUEST_CODE); + } + + @Override + public void onRequestPermissionsResult(int requestCode, String permissions[], + int[] grantResults) { + Log.v(TAG, "onPermissionsResult counts: " + permissions.length + ":" + grantResults.length); + + if (mShouldRequestStoragePermission) { + if (grantResults.length > 0 && grantResults[mIndexPermissionRequestStorage] == + PackageManager.PERMISSION_GRANTED) { + mFlagHasStoragePermission = true; + } else { + handlePermissionsFailure(); + } + } + + if (mFlagHasStoragePermission) { + handlePermissionsSuccess(); + } + } + + private void handlePermissionsSuccess() { + Editor edit = mPrefs.edit(); + edit.putBoolean(PREF_HAS_SEEN_PERMISSIONS_DIALOGS, true); + edit.commit(); + + Intent intent = new Intent(this, BrowserActivity.class); + startActivity(intent); + finish(); + } + + private void handlePermissionsFailure() { + new AlertDialog.Builder(this).setTitle(getResources().getString(R.string.browser_error_title)) + .setMessage(getResources().getString(R.string.error_permissions)) + .setPositiveButton(getResources().getString(R.string.dialog_dismiss), + new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + finish(); + } + }) + .show(); + } +} |