android/src/com/google/zxing/client/android/ResultHandler.java

/*
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.zxing.client.android;

import android.content.Intent;
import android.net.ContentURI;
import android.os.Handler;
import android.os.Message;
import android.provider.Contacts;
import com.google.zxing.client.result.AddressBookDoCoMoResult;
import com.google.zxing.client.result.BookmarkDoCoMoResult;
import com.google.zxing.client.result.EmailAddressResult;
import com.google.zxing.client.result.EmailDoCoMoResult;
import com.google.zxing.client.result.ParsedReaderResult;
import com.google.zxing.client.result.ParsedReaderResultType;
import com.google.zxing.client.result.UPCParsedResult;
import com.google.zxing.client.result.URIParsedResult;

import java.net.URISyntaxException;

/**
 * Handles the result of barcode decoding in the context of the Android platform,
 * by dispatching the proper intents and so on.
 *
 * @author srowen@google.com (Sean Owen)
 * @author dswitkin@google.com (Daniel Switkin)
 */
final class ResultHandler extends Handler {

  private final ParsedReaderResult result;
  private final BarcodeReaderCaptureActivity captureActivity;

  ResultHandler(BarcodeReaderCaptureActivity captureActivity, ParsedReaderResult result) {
    this.captureActivity = captureActivity;
    this.result = result;
  }

  @Override
  public void handleMessage(Message message) {
    if (message.what == R.string.button_yes) {
      Intent intent = null;
      ParsedReaderResultType type = result.getType();
      if (type == ParsedReaderResultType.ADDRESSBOOK) {
        AddressBookDoCoMoResult addressResult = (AddressBookDoCoMoResult)result;
        intent = new Intent(Contacts.Intents.Insert.ACTION, Contacts.People.CONTENT_URI);
        putExtra(intent, Contacts.Intents.Insert.NAME, addressResult.getName());
        putExtra(intent, Contacts.Intents.Insert.PHONE, addressResult.getPhoneNumbers()[0]);
        putExtra(intent, Contacts.Intents.Insert.EMAIL, addressResult.getEmail());
        putExtra(intent, Contacts.Intents.Insert.NOTES, addressResult.getNote());
        putExtra(intent, Contacts.Intents.Insert.POSTAL, addressResult.getAddress());
      } else if (type == ParsedReaderResultType.BOOKMARK) {
        // For now, we can only open the browser, and not actually add a bookmark
        try {
          intent = new Intent(Intent.VIEW_ACTION,
              new ContentURI(((BookmarkDoCoMoResult)result).getURI()));
        } catch (URISyntaxException e) {
          return;
        }
      } else if (type == ParsedReaderResultType.EMAIL) {
        EmailDoCoMoResult emailResult = (EmailDoCoMoResult)result;
        try {
          intent = new Intent(Intent.SENDTO_ACTION, new ContentURI(emailResult.getTo()));
        } catch (URISyntaxException e) {
          return;
        }
        putExtra(intent, "subject", emailResult.getSubject());
        putExtra(intent, "body", emailResult.getBody());
      } else if (type == ParsedReaderResultType.EMAIL_ADDRESS) {
        EmailAddressResult emailResult = (EmailAddressResult)result;
        try {
          intent = new Intent(Intent.SENDTO_ACTION, new ContentURI(emailResult.getEmailAddress()));
        } catch (URISyntaxException e) {
          return;
        }
      } else if (type == ParsedReaderResultType.UPC) {
        UPCParsedResult upcResult = (UPCParsedResult)result;
        try {
          ContentURI uri = new ContentURI("http://www.upcdatabase.com/item.asp?upc=" +
              upcResult.getUPC());
          intent = new Intent(Intent.VIEW_ACTION, uri);
        } catch (URISyntaxException e) {
          return;
        }
      } else if (type == ParsedReaderResultType.URI) {
        URIParsedResult uriResult = (URIParsedResult)result;
        try {
          intent = new Intent(Intent.VIEW_ACTION, new ContentURI(uriResult.getURI()));
        } catch (URISyntaxException e) {
          return;
        }
      }
      if (intent != null) {
        captureActivity.startActivity(intent);
      }
    } else {
      captureActivity.restartPreview();
    }
  }

  private static void putExtra(Intent intent, String key, String value) {
    if (key != null && key.length() > 0) {
      intent.putExtra(key, value);
    }
  }

}