package com.facebook.android;
/*
* The me, delete and back_parent buttons are downloaded from http://icongal.com/
*/
import java.util.Iterator;
import java.util.Vector;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.text.util.Linkify;
import android.text.util.Linkify.TransformFilter;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;
public class GraphExplorer extends Activity {
private Button mSubmitButton, mViewURLButton;
private Button mGetPermissionsButton;
private Button mTextDeleteButton, mMeButton;
private Button mFieldsConnectionsButton, mBackParentButton;
private TextView mOutput;
private EditText mInputId;
private Bundle params;
private String url, mParentObjectId;
private ProgressDialog dialog;
private String rootString;
private ScrollView mScrollView;
private Handler mHandler;
private final static String BASE_GRAPH_URL = "https://graph.facebook.com";
private JSONObject metadataObject;
/*
* Layout the Graph Explorer
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mHandler = new Handler();
setContentView(R.layout.graph_explorer);
url = BASE_GRAPH_URL; // Base URL
mInputId = (EditText) findViewById(R.id.inputId);
mOutput = (TextView) findViewById(R.id.output);
mSubmitButton = (Button) findViewById(R.id.submitButton);
mViewURLButton = (Button) findViewById(R.id.viewURLButton);
mGetPermissionsButton = (Button) findViewById(R.id.accessTokenButton);
mFieldsConnectionsButton = (Button) findViewById(R.id.fieldsAndConnectionsButton);
mBackParentButton = (Button) findViewById(R.id.backParentButton);
mScrollView = (ScrollView) findViewById(R.id.ScrollView01);
mTextDeleteButton = (Button) findViewById(R.id.textDeleteButton);
mMeButton = (Button) findViewById(R.id.meButton);
if (Utility.mFacebook.isSessionValid()) {
mMeButton.setVisibility(View.VISIBLE);
}
params = new Bundle();
mSubmitButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(mInputId.getWindowToken(), 0);
// Prepare the URL to be shown on 'View URL' click action. This
// is not used by the SDK
url = BASE_GRAPH_URL; // Base URL
/*
* Source Tag: graph_explorer
*/
rootString = mInputId.getText().toString();
if (!TextUtils.isEmpty(rootString)) {
dialog = ProgressDialog.show(GraphExplorer.this, "",
getString(R.string.please_wait), true, true);
params.putString("metadata", "1");
Utility.mAsyncRunner.request(rootString, params, new graphApiRequestListener());
url += "/" + rootString; // Relative Path provided by you
}
}
});
mViewURLButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setText(url);
Linkify.addLinks(mOutput, Linkify.WEB_URLS);
}
});
mGetPermissionsButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (Utility.mFacebook.isSessionValid()) {
dialog = ProgressDialog.show(GraphExplorer.this, "",
getString(R.string.fetching_current_permissions), true, true);
Bundle params = new Bundle();
params.putString("access_token", Utility.mFacebook.getAccessToken());
Utility.mAsyncRunner.request("me/permissions", params,
new permissionsRequestListener());
} else {
new PermissionsDialog(GraphExplorer.this).show();
}
}
});
mFieldsConnectionsButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (metadataObject == null) {
makeToast("No fields, connections availalbe for this object.");
} else {
new FieldsConnectionsDialog(GraphExplorer.this, metadataObject).show();
}
}
});
mTextDeleteButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
url = BASE_GRAPH_URL; // Base URL
mParentObjectId = "";
mInputId.setText("");
params.clear();
metadataObject = null;
setText("");
mBackParentButton.setVisibility(View.INVISIBLE);
}
});
mMeButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mInputId.setText("me");
mSubmitButton.performClick();
}
});
mBackParentButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mInputId.setText(mParentObjectId);
mParentObjectId = "";
mSubmitButton.performClick();
}
});
}
@Override
public void onResume() {
super.onResume();
if (Utility.mFacebook.isSessionValid()) {
mMeButton.setVisibility(View.VISIBLE);
}
if (Utility.objectID != null) {
mInputId.setText(Utility.objectID);
Utility.objectID = null;
mSubmitButton.performClick();
}
}
protected void processIntent(Intent incomingIntent) {
Uri intentUri = incomingIntent.getData();
if (intentUri == null) {
return;
}
String objectID = intentUri.getHost();
mInputId.setText(objectID);
mSubmitButton.performClick();
}
public void getConnection(String connection) {
mInputId.setText(rootString + "/" + connection);
mParentObjectId = rootString;
mSubmitButton.performClick();
}
public void getFields(Vector<String> fieldsVector) {
String fields = "";
int count = 0;
for (String field : fieldsVector) {
fields += field;
if (++count < fieldsVector.size()) {
fields += ",";
}
}
params.putString("fields", fields);
mSubmitButton.performClick();
}
/*
* Callback for the permission OAuth Dialog
*/
public class permissionsRequestListener extends BaseRequestListener {
@Override
public void onComplete(final String response, final Object state) {
dialog.dismiss();
/*
* Clear the current permission list and repopulate with new
* permissions. This is used to mark assigned permission green and
* unclickable.
*/
Utility.currentPermissions.clear();
try {
JSONObject jsonObject = new JSONObject(response).getJSONArray("data")
.getJSONObject(0);
Iterator<?> iterator = jsonObject.keys();
String permission;
while (iterator.hasNext()) {
permission = (String) iterator.next();
Utility.currentPermissions.put(permission,
String.valueOf(jsonObject.getInt(permission)));
}
} catch (JSONException e) {
makeToast("Permissions could not be fetched, none will be selected by default.");
}
mHandler.post(new Runnable() {
@Override
public void run() {
new PermissionsDialog(GraphExplorer.this).show();
}
});
}
public void onFacebookError(FacebookError error) {
dialog.dismiss();
makeToast("Permissions could not be fetched, none will be selected by default.");
mHandler.post(new Runnable() {
@Override
public void run() {
new PermissionsDialog(GraphExplorer.this).show();
}
});
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Utility.mFacebook.authorizeCallback(requestCode, resultCode, data);
}
/*
* Callback after a given Graph API request is executed Get the response and
* show it.
*/
public class graphApiRequestListener extends BaseRequestListener {
@Override
public void onComplete(final String response, final Object state) {
dialog.dismiss();
// access token is appended by Facebook object, hence params are
// added here after request is complete
if (!params.isEmpty()) {
url += "?" + Util.encodeUrl(params); // Params
}
metadataObject = null;
params.clear();
try {
JSONObject json = Util.parseJson(response);
if (json.has("metadata")) {
metadataObject = json.getJSONObject("metadata");
json.remove("metadata");
} else {
metadataObject = null;
}
setText(json.toString(2));
} catch (JSONException e) {
setText(e.getMessage());
e.printStackTrace();
} catch (FacebookError e) {
setText(e.getMessage());
e.printStackTrace();
}
}
public void onFacebookError(FacebookError error) {
dialog.dismiss();
setText(error.getMessage());
params.clear();
metadataObject = null;
}
}
public void setText(final String txt) {
mHandler.post(new Runnable() {
/*
* A transform filter that simply returns just the text captured by
* the first regular expression group.
*/
TransformFilter idFilter = new TransformFilter() {
@Override
public final String transformUrl(final Matcher match, String url) {
return match.group(1);
}
};
@Override
public void run() {
mViewURLButton.setVisibility(
TextUtils.isEmpty(txt) ? View.INVISIBLE : View.VISIBLE);
mFieldsConnectionsButton.setVisibility(TextUtils.isEmpty(txt) ? View.INVISIBLE
: View.VISIBLE);
mOutput.setVisibility(TextUtils.isEmpty(txt) ? View.INVISIBLE : View.VISIBLE);
mBackParentButton.setVisibility(
TextUtils.isEmpty(mParentObjectId) ? View.INVISIBLE : View.VISIBLE);
String convertedTxt = txt.replace("\\/", "/");
mOutput.setText(convertedTxt);
mScrollView.scrollTo(0, 0);
Linkify.addLinks(mOutput, Linkify.WEB_URLS);
/*
* Linkify the object ids so they can be clicked. match pattern:
* "id" : "objectid" (objectid can be int or int_int)
*/
Pattern pattern = Pattern.compile("\"id\": \"(\\d*_?\\d*)\"");
String scheme = "fbGraphEx://";
Linkify.addLinks(mOutput, pattern, scheme, null, idFilter);
}
});
}
private void makeToast(final String msg) {
mHandler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(GraphExplorer.this, msg, Toast.LENGTH_SHORT).show();
}
});
}
}