[DPP R2] Update ACTION_PROCESS_WIFI_EASY_CONNECT_URI intent

Update ACTION_PROCESS_WIFI_EASY_CONNECT_URI intent to include
additional information in case of a failure. The intent will
return an extra field with result code for R1 and R2 devices,
and additional details for R2 devices: SSID, channe list,
and band list.

Bug: 139381558
Test: Manual test
Change-Id: I6f1805f3b1ff72efc83961083c1311a24d6ebd3e

src/com/android/settings/wifi/dpp/WifiDppAddDeviceFragment.java

@@ -16,9 +16,15 @@
 
 package com.android.settings.wifi.dpp;
 
+import static android.provider.Settings.EXTRA_EASY_CONNECT_ATTEMPTED_SSID;
+import static android.provider.Settings.EXTRA_EASY_CONNECT_BAND_LIST;
+import static android.provider.Settings.EXTRA_EASY_CONNECT_CHANNEL_LIST;
+import static android.provider.Settings.EXTRA_EASY_CONNECT_ERROR_CODE;
+
 import android.app.Activity;
 import android.app.settings.SettingsEnums;
 import android.content.Context;
+import android.content.Intent;
 import android.net.wifi.EasyConnectStatusCallback;
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
@@ -35,6 +41,9 @@ import androidx.lifecycle.ViewModelProviders;
 
 import com.android.settings.R;
 
+import org.json.JSONArray;
+import org.json.JSONObject;
+
 /**
  * After getting Wi-Fi network information and(or) QR code, this fragment config a device to connect
  * to the Wi-Fi network.
@@ -79,7 +88,8 @@ public class WifiDppAddDeviceFragment extends WifiDppQrCodeBaseFragment {
                 Log.d(TAG, sb.toString());
             }
 
-            showErrorUi(code, /* isConfigurationChange */ false);
+            showErrorUi(code, ssid, channelListArray, operatingClassArray,
+                    /* isConfigurationChange */ false);
         }
 
         @Override
@@ -110,7 +120,8 @@ public class WifiDppAddDeviceFragment extends WifiDppQrCodeBaseFragment {
         }
     }
 
-    private void showErrorUi(int code, boolean isConfigurationChange) {
+    private void showErrorUi(int code, String ssid, SparseArray<int[]> channelListArray,
+            int[] operatingClassArray, boolean isConfigurationChange) {
         CharSequence summaryCharSequence;
         switch (code) {
             case EasyConnectStatusCallback.EASY_CONNECT_EVENT_FAILURE_INVALID_URI:
@@ -191,7 +202,50 @@ public class WifiDppAddDeviceFragment extends WifiDppQrCodeBaseFragment {
             mRightButton.setText(getContext(), R.string.retry);
         } else {
             mRightButton.setText(getContext(), R.string.done);
-            mRightButton.setOnClickListener(v -> getActivity().finish());
+            mRightButton.setOnClickListener(v -> {
+                final Activity activity = getActivity();
+                final Intent intent = activity.getIntent();
+                intent.putExtra(EXTRA_EASY_CONNECT_ERROR_CODE, code);
+
+                if (!TextUtils.isEmpty(ssid)) {
+                    intent.putExtra(EXTRA_EASY_CONNECT_ATTEMPTED_SSID, ssid);
+                }
+                if (channelListArray != null && channelListArray.size() != 0) {
+                    int key;
+                    int index = 0;
+                    JSONObject formattedChannelList = new JSONObject();
+
+                    // Build a JSON array of operating classes, with an array of channels for each
+                    // operating class.
+                    do {
+                        try {
+                            key = channelListArray.keyAt(index);
+                        } catch (java.lang.ArrayIndexOutOfBoundsException e) {
+                            break;
+                        }
+                        JSONArray channelsInClassArray = new JSONArray();
+
+                        int[] output = channelListArray.get(key);
+                        for (int i = 0; i < output.length; i++) {
+                            channelsInClassArray.put(output[i]);
+                        }
+                        try {
+                            formattedChannelList.put(Integer.toString(key), channelsInClassArray);
+                        } catch (org.json.JSONException e) {
+                            formattedChannelList = new JSONObject();
+                            break;
+                        }
+                        index++;
+                    } while (true);
+
+                    intent.putExtra(EXTRA_EASY_CONNECT_CHANNEL_LIST,
+                            formattedChannelList.toString());
+                }
+                if (operatingClassArray != null && operatingClassArray.length != 0) {
+                    intent.putExtra(EXTRA_EASY_CONNECT_BAND_LIST, operatingClassArray);
+                }
+                activity.finish();
+            });
             mLeftButton.setVisibility(View.INVISIBLE);
         }
 
@@ -302,7 +356,8 @@ public class WifiDppAddDeviceFragment extends WifiDppQrCodeBaseFragment {
                 mRightButton.setVisibility(isEasyConnectHandshaking() ?
                         View.INVISIBLE : View.VISIBLE);
             } else {
-                showErrorUi(mLatestStatusCode, /* isConfigurationChange */ true);
+                showErrorUi(mLatestStatusCode, /*ssid */null, /* channelListArray */
+                        null, /* operatingClassArray */ null, /* isConfigurationChange */ true);
             }
         }
     }