| /* |
| * Copyright (C) 2016 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.dialer.callcomposer; |
| |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.support.annotation.Nullable; |
| import android.support.v4.app.Fragment; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewTreeObserver.OnGlobalLayoutListener; |
| import com.android.dialer.common.Assert; |
| import com.android.dialer.common.FragmentUtils; |
| import com.android.dialer.common.LogUtil; |
| |
| /** Base fragment with fields and methods needed for all fragments in the call compose UI. */ |
| public abstract class CallComposerFragment extends Fragment { |
| |
| protected static final int CAMERA_PERMISSION = 1; |
| protected static final int STORAGE_PERMISSION = 2; |
| |
| private static final String LOCATION_KEY = "location_key"; |
| public static final int CONTENT_TOP_UNSET = Integer.MAX_VALUE; |
| |
| private View topView; |
| private int contentTopPx = CONTENT_TOP_UNSET; |
| private CallComposerListener testListener; |
| |
| @Nullable |
| @Override |
| public View onCreateView( |
| LayoutInflater layoutInflater, @Nullable ViewGroup viewGroup, @Nullable Bundle bundle) { |
| View view = super.onCreateView(layoutInflater, viewGroup, bundle); |
| Assert.isNotNull(topView); |
| return view; |
| } |
| |
| @Override |
| public void onAttach(Context context) { |
| super.onAttach(context); |
| if (!(context instanceof CallComposerListener) && testListener == null) { |
| LogUtil.e( |
| "CallComposerFragment.onAttach", |
| "Container activity must implement CallComposerListener."); |
| Assert.fail(); |
| } |
| } |
| |
| /** Call this method to declare which view is located at the top of the fragment's layout. */ |
| public void setTopView(View view) { |
| topView = view; |
| // For each fragment that extends CallComposerFragment, the heights may vary and since |
| // ViewPagers cannot have their height set to wrap_content, we have to adjust the top of our |
| // container to match the top of the fragment. This listener populates {@code contentTopPx} as |
| // it's available. |
| topView |
| .getViewTreeObserver() |
| .addOnGlobalLayoutListener( |
| new OnGlobalLayoutListener() { |
| @Override |
| public void onGlobalLayout() { |
| topView.getViewTreeObserver().removeOnGlobalLayoutListener(this); |
| contentTopPx = topView.getTop(); |
| } |
| }); |
| } |
| |
| public int getContentTopPx() { |
| return contentTopPx; |
| } |
| |
| public void setParentForTesting(CallComposerListener listener) { |
| testListener = listener; |
| } |
| |
| public CallComposerListener getListener() { |
| if (testListener != null) { |
| return testListener; |
| } |
| return FragmentUtils.getParentUnsafe(this, CallComposerListener.class); |
| } |
| |
| @Override |
| public void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| outState.putInt(LOCATION_KEY, contentTopPx); |
| } |
| |
| @Override |
| public void onViewStateRestored(Bundle savedInstanceState) { |
| super.onViewStateRestored(savedInstanceState); |
| if (savedInstanceState != null) { |
| contentTopPx = savedInstanceState.getInt(LOCATION_KEY); |
| } |
| } |
| |
| public abstract boolean shouldHide(); |
| |
| /** Interface used to listen to CallComposeFragments */ |
| public interface CallComposerListener { |
| /** Let the listener know when a call is ready to be composed. */ |
| void composeCall(CallComposerFragment fragment); |
| |
| /** Let the listener know when the layout has changed to full screen */ |
| void showFullscreen(boolean show); |
| |
| /** True is the listener is in fullscreen. */ |
| boolean isFullscreen(); |
| } |
| } |