1 files changed, 211 insertions, 0 deletions
diff --git a/src/com/android/settings/nfc/NfcPaymentPreference.java b/src/com/android/settings/nfc/NfcPaymentPreference.java
new file mode 100644
index 000000000..e24a651c2
--- /dev/null
+++ b/src/com/android/settings/nfc/NfcPaymentPreference.java
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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.android.settings.nfc;
+
+import android.app.AlertDialog;
+import android.content.ActivityNotFoundException;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.preference.DialogPreference;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.CompoundButton;
+import android.widget.ImageView;
+import android.widget.RadioButton;
+import com.android.settings.R;
+import com.android.settings.nfc.PaymentBackend.PaymentAppInfo;
+
+import java.util.List;
+
+public class NfcPaymentPreference extends DialogPreference implements
+        DialogInterface.OnClickListener, PaymentBackend.Callback, View.OnClickListener {
+
+    private static final String TAG = "NfcPaymentPreference";
+
+    private final NfcPaymentAdapter mAdapter;
+    private final Context mContext;
+    private final LayoutInflater mLayoutInflater;
+    private final PaymentBackend mPaymentBackend;
+
+    // Fields below only modified on UI thread
+    private ImageView mSettingsButtonView;
+
+    public NfcPaymentPreference(Context context, PaymentBackend backend) {
+        super(context, null);
+        mPaymentBackend = backend;
+        mContext = context;
+        backend.registerCallback(this);
+        mAdapter = new NfcPaymentAdapter();
+        setDialogTitle(context.getString(R.string.nfc_payment_pay_with));
+        mLayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        setWidgetLayoutResource(R.layout.preference_widget_settings);
+
+        refresh();
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+
+        mSettingsButtonView = (ImageView) view.findViewById(R.id.settings_button);
+        mSettingsButtonView.setOnClickListener(this);
+
+        updateSettingsVisibility();
+    }
+
+    /**
+     * MUST be called on UI thread.
+     */
+    public void refresh() {
+        List<PaymentAppInfo> appInfos = mPaymentBackend.getPaymentAppInfos();
+        PaymentAppInfo defaultApp = mPaymentBackend.getDefaultApp();
+        if (appInfos != null) {
+            PaymentAppInfo[] apps = appInfos.toArray(new PaymentAppInfo[appInfos.size()]);
+            mAdapter.updateApps(apps, defaultApp);
+        }
+        setTitle(R.string.nfc_payment_default);
+        if (defaultApp != null) {
+            setSummary(mContext.getString(R.string.nfc_payment_app_and_desc,
+                    defaultApp.label, defaultApp.description));
+        } else {
+            setSummary(mContext.getString(R.string.nfc_payment_default_not_set));
+        }
+        updateSettingsVisibility();
+    }
+
+    @Override
+    protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
+        super.onPrepareDialogBuilder(builder);
+
+        builder.setSingleChoiceItems(mAdapter, 0, this);
+    }
+
+    @Override
+    public void onPaymentAppsChanged() {
+        refresh();
+    }
+
+    @Override
+    public void onClick(View view) {
+        PaymentAppInfo defaultAppInfo = mPaymentBackend.getDefaultApp();
+        if (defaultAppInfo != null && defaultAppInfo.settingsComponent != null) {
+            Intent settingsIntent = new Intent(Intent.ACTION_MAIN);
+            settingsIntent.setComponent(defaultAppInfo.settingsComponent);
+            settingsIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            try {
+                mContext.startActivity(settingsIntent);
+            } catch (ActivityNotFoundException e) {
+                Log.e(TAG, "Settings activity not found.");
+            }
+        }
+    }
+
+    void updateSettingsVisibility() {
+        if (mSettingsButtonView != null) {
+            PaymentAppInfo defaultApp = mPaymentBackend.getDefaultApp();
+            if (defaultApp == null || defaultApp.settingsComponent == null) {
+                mSettingsButtonView.setVisibility(View.GONE);
+            } else {
+                mSettingsButtonView.setVisibility(View.VISIBLE);
+
+            }
+        }
+    }
+
+    class NfcPaymentAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener,
+            View.OnClickListener {
+        // Only modified on UI thread
+        private PaymentAppInfo[] appInfos;
+
+        public NfcPaymentAdapter() {
+        }
+
+        public void updateApps(PaymentAppInfo[] appInfos, PaymentAppInfo currentDefault) {
+            // Clone app infos, only add those with a banner
+            this.appInfos = appInfos;
+            notifyDataSetChanged();
+        }
+
+        @Override
+        public int getCount() {
+            return appInfos.length;
+        }
+
+        @Override
+        public PaymentAppInfo getItem(int i) {
+            return appInfos[i];
+        }
+
+        @Override
+        public long getItemId(int i) {
+            return appInfos[i].componentName.hashCode();
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            ViewHolder holder;
+            PaymentAppInfo appInfo = appInfos[position];
+            if (convertView == null) {
+                convertView = mLayoutInflater.inflate(
+                        R.layout.nfc_payment_option, parent, false);
+                holder = new ViewHolder();
+                holder.imageView = (ImageView) convertView.findViewById(R.id.banner);
+                holder.radioButton = (RadioButton) convertView.findViewById(R.id.button);
+                convertView.setTag(holder);
+            } else {
+                holder = (ViewHolder) convertView.getTag();
+            }
+            holder.imageView.setImageDrawable(appInfo.banner);
+            holder.imageView.setTag(appInfo);
+            holder.imageView.setOnClickListener(this);
+
+            // Prevent checked callback getting called on recycled views
+            holder.radioButton.setOnCheckedChangeListener(null);
+            holder.radioButton.setChecked(appInfo.isDefault);
+            holder.radioButton.setOnCheckedChangeListener(this);
+            holder.radioButton.setTag(appInfo);
+            return convertView;
+        }
+
+        public class ViewHolder {
+            public ImageView imageView;
+            public RadioButton radioButton;
+        }
+
+        @Override
+        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
+            PaymentAppInfo appInfo = (PaymentAppInfo) compoundButton.getTag();
+            makeDefault(appInfo);
+        }
+
+        @Override
+        public void onClick(View view) {
+            PaymentAppInfo appInfo = (PaymentAppInfo) view.getTag();
+            makeDefault(appInfo);
+        }
+
+        void makeDefault(PaymentAppInfo appInfo) {
+            if (!appInfo.isDefault) {
+                mPaymentBackend.setDefaultPaymentApp(appInfo.componentName);
+            }
+            getDialog().dismiss();
+        }
+    }
+}