Show post char dialog without InCallActivity.

Bug: 74022483
Test: InCallPresenterTest
PiperOrigin-RevId: 194275941
Change-Id: If5a40a9778e3c0f5a05c7e33f365cb609bf6e74a
diff --git a/java/com/android/incallui/PostCharDialogActivity.java b/java/com/android/incallui/PostCharDialogActivity.java
new file mode 100644
index 0000000..dcdc9d6
--- /dev/null
+++ b/java/com/android/incallui/PostCharDialogActivity.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2018 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.incallui;
+
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import com.android.incallui.call.CallList;
+import com.android.incallui.call.DialerCall;
+
+/**
+ * Activity that contains an alert dialog with OK and Cancel buttons to allow user to Accept or
+ * Reject the WAIT inserted as part of the Dial string.
+ */
+public class PostCharDialogActivity extends AppCompatActivity implements CallList.Listener {
+
+  public static final String EXTRA_CALL_ID = "extra_call_id";
+  public static final String EXTRA_POST_DIAL_STRING = "extra_post_dial_string";
+  private static final String TAG_INTERNATIONAL_CALL_ON_WIFI = "tag_international_call_on_wifi";
+
+  private String callId;
+
+  @Override
+  protected void onCreate(@Nullable Bundle bundle) {
+    super.onCreate(bundle);
+
+    callId = getIntent().getStringExtra(EXTRA_CALL_ID);
+    String postDialString = getIntent().getStringExtra(EXTRA_POST_DIAL_STRING);
+    if (callId == null || postDialString == null) {
+      finish();
+      return;
+    }
+
+    PostCharDialogFragment fragment = new PostCharDialogFragment(callId, postDialString);
+    fragment.show(getSupportFragmentManager(), TAG_INTERNATIONAL_CALL_ON_WIFI);
+
+    CallList.getInstance().addListener(this);
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    CallList.getInstance().removeListener(this);
+  }
+
+  @Override
+  protected void onPause() {
+    super.onPause();
+    // We don't expect the activity to resume, except for orientation change.
+    if (!isChangingConfigurations()) {
+      finish();
+    }
+  }
+
+  @Override
+  public void onDisconnect(DialerCall call) {
+    if (callId.equals(call.getId())) {
+      finish();
+    }
+  }
+
+  @Override
+  public void onIncomingCall(DialerCall call) {}
+
+  @Override
+  public void onUpgradeToVideo(DialerCall call) {}
+
+  @Override
+  public void onUpgradeToRtt(DialerCall call, int rttRequestId) {}
+
+  @Override
+  public void onSessionModificationStateChange(DialerCall call) {}
+
+  @Override
+  public void onCallListChange(CallList callList) {}
+
+  @Override
+  public void onWiFiToLteHandover(DialerCall call) {}
+
+  @Override
+  public void onHandoverToWifiFailed(DialerCall call) {}
+
+  @Override
+  public void onInternationalCallOnWifi(@NonNull DialerCall call) {}
+}