src/com/android/launcher3/qsb/QsbContainerView.java - platform/packages/apps/Launcher3 - Git at Google

 /*
  * 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.launcher3.qsb;

 import android.app.Activity;
 import android.app.Fragment;
 import android.app.SearchManager;
 import android.appwidget.AppWidgetHost;
 import android.appwidget.AppWidgetHostView;
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;

 import com.android.launcher3.AppWidgetResizeFrame;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;

 /**
  * A frame layout which contains a QSB. This internally uses fragment to bind the view, which
  * allows it to contain the logic for {@link Fragment#startActivityForResult(Intent, int)}.
  *
  * Note: AppWidgetManagerCompat can be disabled using FeatureFlags. In QSB, we should use
  * AppWidgetManager directly, so that it keeps working in that case.
  */
 public class QsbContainerView extends FrameLayout {

     public QsbContainerView(Context context) {
         super(context);
     }

     public QsbContainerView(Context context, AttributeSet attrs) {
         super(context, attrs);
     }

     public QsbContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
     }

     @Override
     public void setPadding(int left, int top, int right, int bottom) {
         super.setPadding(0, 0, 0, 0);
     }

     protected void setPaddingUnchecked(int left, int top, int right, int bottom) {
         super.setPadding(left, top, right, bottom);
     }

     /**
      * A fragment to display the QSB.
      */
     public static class QsbFragment extends Fragment implements View.OnClickListener {

         private static final int REQUEST_BIND_QSB = 1;
         private static final String QSB_WIDGET_ID = "qsb_widget_id";

         private QsbWidgetHost mQsbWidgetHost;
         private AppWidgetProviderInfo mWidgetInfo;
         private QsbWidgetHostView mQsb;

         // We need to store the orientation here, due to a bug (b/64916689) that results in widgets
         // being inflated in the wrong orientation.
         private int mOrientation;

         @Override
         public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
             mQsbWidgetHost = new QsbWidgetHost(getActivity());
             mOrientation = getContext().getResources().getConfiguration().orientation;
         }

         private FrameLayout mWrapper;

         @Override
         public View onCreateView(
                 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

             mWrapper = new FrameLayout(getActivity());

             // Only add the view when enabled
             if (isQsbEnabled()) {
                 mWrapper.addView(createQsb(mWrapper));
             }
             return mWrapper;
         }

         private View createQsb(ViewGroup container) {
             Activity activity = getActivity();
             mWidgetInfo = getSearchWidgetProvider(activity);
             if (mWidgetInfo == null) {
                 // There is no search provider, just show the default widget.
                 return QsbWidgetHostView.getDefaultView(container);
             }

             AppWidgetManager widgetManager = AppWidgetManager.getInstance(activity);
             InvariantDeviceProfile idp = LauncherAppState.getIDP(activity);

             Bundle opts = new Bundle();
             Rect size = AppWidgetResizeFrame.getWidgetSizeRanges(activity, idp.numColumns, 1, null);
             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, size.left);
             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, size.top);
             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, size.right);
             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, size.bottom);

             int widgetId = Utilities.getPrefs(activity).getInt(QSB_WIDGET_ID, -1);
             AppWidgetProviderInfo widgetInfo = widgetManager.getAppWidgetInfo(widgetId);
             boolean isWidgetBound = (widgetInfo != null) &&
                     widgetInfo.provider.equals(mWidgetInfo.provider);

             int oldWidgetId = widgetId;
             if (!isWidgetBound) {
                 if (widgetId > -1) {
                     // widgetId is already bound and its not the correct provider. reset host.
                     mQsbWidgetHost.deleteHost();
                 }

                 widgetId = mQsbWidgetHost.allocateAppWidgetId();
                 isWidgetBound = widgetManager.bindAppWidgetIdIfAllowed(
                         widgetId, mWidgetInfo.getProfile(), mWidgetInfo.provider, opts);
                 if (!isWidgetBound) {
                     mQsbWidgetHost.deleteAppWidgetId(widgetId);
                     widgetId = -1;
                 }

                 if (oldWidgetId != widgetId) {
                     saveWidgetId(widgetId);
                 }
             }

             if (isWidgetBound) {
                 mQsb = (QsbWidgetHostView) mQsbWidgetHost.createView(activity, widgetId, mWidgetInfo);
                 mQsb.setId(R.id.qsb_widget);

                 if (!Utilities.containsAll(AppWidgetManager.getInstance(activity)
                         .getAppWidgetOptions(widgetId), opts)) {
                     mQsb.updateAppWidgetOptions(opts);
                 }
                 mQsb.setPadding(0, 0, 0, 0);
                 mQsbWidgetHost.startListening();
                 return mQsb;
             }

             // Return a default widget with setup icon.
             View v = QsbWidgetHostView.getDefaultView(container);
             View setupButton = v.findViewById(R.id.btn_qsb_setup);
             setupButton.setVisibility(View.VISIBLE);
             setupButton.setOnClickListener(this);
             return v;
         }

         private void saveWidgetId(int widgetId) {
             Utilities.getPrefs(getActivity()).edit().putInt(QSB_WIDGET_ID, widgetId).apply();
         }

         @Override
         public void onClick(View view) {
             // Start intent for bind the widget
             Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
             // Allocate a new widget id for QSB
             intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mQsbWidgetHost.allocateAppWidgetId());
             intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER, mWidgetInfo.provider);
             startActivityForResult(intent, REQUEST_BIND_QSB);
         }

         @Override
         public void onActivityResult(int requestCode, int resultCode, Intent data) {
             if (requestCode == REQUEST_BIND_QSB) {
                 if (resultCode == Activity.RESULT_OK) {
                     saveWidgetId(data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1));
                     rebindFragment();
                 } else {
                     mQsbWidgetHost.deleteHost();
                 }
             }
         }

         @Override
         public void onResume() {
             super.onResume();
             if (mQsb != null && mQsb.isReinflateRequired(mOrientation)) {
                 rebindFragment();
             }
         }

         @Override
         public void onDestroy() {
             mQsbWidgetHost.stopListening();
             super.onDestroy();
         }

         private void rebindFragment() {
             // Exit if the embedded qsb is disabled
             if (!isQsbEnabled()) {
                 return;
             }

             if (mWrapper != null && getActivity() != null) {
                 mWrapper.removeAllViews();
                 mWrapper.addView(createQsb(mWrapper));
             }
         }

         public boolean isQsbEnabled() {
             return FeatureFlags.QSB_ON_FIRST_SCREEN;
         }
     }

     /**
      * Returns a widget with category {@link AppWidgetProviderInfo#WIDGET_CATEGORY_SEARCHBOX}
      * provided by the same package which is set to be global search activity.
      * If widgetCategory is not supported, or no such widget is found, returns the first widget
      * provided by the package.
      */
     public static AppWidgetProviderInfo getSearchWidgetProvider(Context context) {
         SearchManager searchManager =
                 (SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
         ComponentName searchComponent = searchManager.getGlobalSearchActivity();
         if (searchComponent == null) return null;
         String providerPkg = searchComponent.getPackageName();

         AppWidgetProviderInfo defaultWidgetForSearchPackage = null;

         AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
         for (AppWidgetProviderInfo info : appWidgetManager.getInstalledProviders()) {
             if (info.provider.getPackageName().equals(providerPkg) && info.configure == null) {
                 if ((info.widgetCategory & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
                     return info;
                 } else if (defaultWidgetForSearchPackage == null) {
                     defaultWidgetForSearchPackage = info;
                 }
             }
         }
         return defaultWidgetForSearchPackage;
     }

     private static class QsbWidgetHost extends AppWidgetHost {

         private static final int QSB_WIDGET_HOST_ID = 1026;

         public QsbWidgetHost(Context context) {
             super(context, QSB_WIDGET_HOST_ID);
         }

         @Override
         protected AppWidgetHostView onCreateView(
                 Context context, int appWidgetId, AppWidgetProviderInfo appWidget) {
             return new QsbWidgetHostView(context);
         }
     }
 }
	/*
	* 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.launcher3.qsb;

	import android.app.Activity;
	import android.app.Fragment;
	import android.app.SearchManager;
	import android.appwidget.AppWidgetHost;
	import android.appwidget.AppWidgetHostView;
	import android.appwidget.AppWidgetManager;
	import android.appwidget.AppWidgetProviderInfo;
	import android.content.ComponentName;
	import android.content.Context;
	import android.content.Intent;
	import android.graphics.Rect;
	import android.os.Bundle;
	import android.util.AttributeSet;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.FrameLayout;

	import com.android.launcher3.AppWidgetResizeFrame;
	import com.android.launcher3.InvariantDeviceProfile;
	import com.android.launcher3.LauncherAppState;
	import com.android.launcher3.R;
	import com.android.launcher3.Utilities;
	import com.android.launcher3.config.FeatureFlags;

	/**
	* A frame layout which contains a QSB. This internally uses fragment to bind the view, which
	* allows it to contain the logic for {@link Fragment#startActivityForResult(Intent, int)}.
	*
	* Note: AppWidgetManagerCompat can be disabled using FeatureFlags. In QSB, we should use
	* AppWidgetManager directly, so that it keeps working in that case.
	*/
	public class QsbContainerView extends FrameLayout {

	public QsbContainerView(Context context) {
	super(context);
	}

	public QsbContainerView(Context context, AttributeSet attrs) {
	super(context, attrs);
	}

	public QsbContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
	super(context, attrs, defStyleAttr);
	}

	@Override
	public void setPadding(int left, int top, int right, int bottom) {
	super.setPadding(0, 0, 0, 0);
	}

	protected void setPaddingUnchecked(int left, int top, int right, int bottom) {
	super.setPadding(left, top, right, bottom);
	}

	/**
	* A fragment to display the QSB.
	*/
	public static class QsbFragment extends Fragment implements View.OnClickListener {

	private static final int REQUEST_BIND_QSB = 1;
	private static final String QSB_WIDGET_ID = "qsb_widget_id";

	private QsbWidgetHost mQsbWidgetHost;
	private AppWidgetProviderInfo mWidgetInfo;
	private QsbWidgetHostView mQsb;

	// We need to store the orientation here, due to a bug (b/64916689) that results in widgets
	// being inflated in the wrong orientation.
	private int mOrientation;

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	mQsbWidgetHost = new QsbWidgetHost(getActivity());
	mOrientation = getContext().getResources().getConfiguration().orientation;
	}

	private FrameLayout mWrapper;

	@Override
	public View onCreateView(
	LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

	mWrapper = new FrameLayout(getActivity());

	// Only add the view when enabled
	if (isQsbEnabled()) {
	mWrapper.addView(createQsb(mWrapper));
	}
	return mWrapper;
	}

	private View createQsb(ViewGroup container) {
	Activity activity = getActivity();
	mWidgetInfo = getSearchWidgetProvider(activity);
	if (mWidgetInfo == null) {
	// There is no search provider, just show the default widget.
	return QsbWidgetHostView.getDefaultView(container);
	}

	AppWidgetManager widgetManager = AppWidgetManager.getInstance(activity);
	InvariantDeviceProfile idp = LauncherAppState.getIDP(activity);

	Bundle opts = new Bundle();
	Rect size = AppWidgetResizeFrame.getWidgetSizeRanges(activity, idp.numColumns, 1, null);
	opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, size.left);
	opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, size.top);
	opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, size.right);
	opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, size.bottom);

	int widgetId = Utilities.getPrefs(activity).getInt(QSB_WIDGET_ID, -1);
	AppWidgetProviderInfo widgetInfo = widgetManager.getAppWidgetInfo(widgetId);
	boolean isWidgetBound = (widgetInfo != null) &&
	widgetInfo.provider.equals(mWidgetInfo.provider);

	int oldWidgetId = widgetId;
	if (!isWidgetBound) {
	if (widgetId > -1) {
	// widgetId is already bound and its not the correct provider. reset host.
	mQsbWidgetHost.deleteHost();
	}

	widgetId = mQsbWidgetHost.allocateAppWidgetId();
	isWidgetBound = widgetManager.bindAppWidgetIdIfAllowed(
	widgetId, mWidgetInfo.getProfile(), mWidgetInfo.provider, opts);
	if (!isWidgetBound) {
	mQsbWidgetHost.deleteAppWidgetId(widgetId);
	widgetId = -1;
	}

	if (oldWidgetId != widgetId) {
	saveWidgetId(widgetId);
	}
	}

	if (isWidgetBound) {
	mQsb = (QsbWidgetHostView) mQsbWidgetHost.createView(activity, widgetId, mWidgetInfo);
	mQsb.setId(R.id.qsb_widget);

	if (!Utilities.containsAll(AppWidgetManager.getInstance(activity)
	.getAppWidgetOptions(widgetId), opts)) {
	mQsb.updateAppWidgetOptions(opts);
	}
	mQsb.setPadding(0, 0, 0, 0);
	mQsbWidgetHost.startListening();
	return mQsb;
	}

	// Return a default widget with setup icon.
	View v = QsbWidgetHostView.getDefaultView(container);
	View setupButton = v.findViewById(R.id.btn_qsb_setup);
	setupButton.setVisibility(View.VISIBLE);
	setupButton.setOnClickListener(this);
	return v;
	}

	private void saveWidgetId(int widgetId) {
	Utilities.getPrefs(getActivity()).edit().putInt(QSB_WIDGET_ID, widgetId).apply();
	}

	@Override
	public void onClick(View view) {
	// Start intent for bind the widget
	Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
	// Allocate a new widget id for QSB
	intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mQsbWidgetHost.allocateAppWidgetId());
	intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER, mWidgetInfo.provider);
	startActivityForResult(intent, REQUEST_BIND_QSB);
	}

	@Override
	public void onActivityResult(int requestCode, int resultCode, Intent data) {
	if (requestCode == REQUEST_BIND_QSB) {
	if (resultCode == Activity.RESULT_OK) {
	saveWidgetId(data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1));
	rebindFragment();
	} else {
	mQsbWidgetHost.deleteHost();
	}
	}
	}

	@Override
	public void onResume() {
	super.onResume();
	if (mQsb != null && mQsb.isReinflateRequired(mOrientation)) {
	rebindFragment();
	}
	}

	@Override
	public void onDestroy() {
	mQsbWidgetHost.stopListening();
	super.onDestroy();
	}

	private void rebindFragment() {
	// Exit if the embedded qsb is disabled
	if (!isQsbEnabled()) {
	return;
	}

	if (mWrapper != null && getActivity() != null) {
	mWrapper.removeAllViews();
	mWrapper.addView(createQsb(mWrapper));
	}
	}

	public boolean isQsbEnabled() {
	return FeatureFlags.QSB_ON_FIRST_SCREEN;
	}
	}

	/**
	* Returns a widget with category {@link AppWidgetProviderInfo#WIDGET_CATEGORY_SEARCHBOX}
	* provided by the same package which is set to be global search activity.
	* If widgetCategory is not supported, or no such widget is found, returns the first widget
	* provided by the package.
	*/
	public static AppWidgetProviderInfo getSearchWidgetProvider(Context context) {
	SearchManager searchManager =
	(SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
	ComponentName searchComponent = searchManager.getGlobalSearchActivity();
	if (searchComponent == null) return null;
	String providerPkg = searchComponent.getPackageName();

	AppWidgetProviderInfo defaultWidgetForSearchPackage = null;

	AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
	for (AppWidgetProviderInfo info : appWidgetManager.getInstalledProviders()) {
	if (info.provider.getPackageName().equals(providerPkg) && info.configure == null) {
	if ((info.widgetCategory & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
	return info;
	} else if (defaultWidgetForSearchPackage == null) {
	defaultWidgetForSearchPackage = info;
	}
	}
	}
	return defaultWidgetForSearchPackage;
	}

	private static class QsbWidgetHost extends AppWidgetHost {

	private static final int QSB_WIDGET_HOST_ID = 1026;

	public QsbWidgetHost(Context context) {
	super(context, QSB_WIDGET_HOST_ID);
	}

	@Override
	protected AppWidgetHostView onCreateView(
	Context context, int appWidgetId, AppWidgetProviderInfo appWidget) {
	return new QsbWidgetHostView(context);
	}
	}
	}