55d10dff53
Screen now handles data role and power
role switching as separate categories.
Change the UsbBackend api to use predefined
constants. Split out data and power direction
changes into separate functions.
Add tests for new controllers and new backend
functionality.
Bug: 72829348
Test: passes
Change-Id: I28b96cf49463fa4f3a4b6be41c57d5841731fbd6
64 lines
2.1 KiB
Java
64 lines
2.1 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.connecteddevice.usb;
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import android.content.Context;
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import android.os.Handler;
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import android.support.annotation.UiThread;
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import com.android.internal.annotations.VisibleForTesting;
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import com.android.settings.core.PreferenceControllerMixin;
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import com.android.settingslib.core.AbstractPreferenceController;
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/**
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* This class provides common members and refresh functionality for usb controllers.
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*/
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public abstract class UsbDetailsController extends AbstractPreferenceController
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implements PreferenceControllerMixin {
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protected final Context mContext;
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protected final UsbDetailsFragment mFragment;
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protected final UsbBackend mUsbBackend;
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@VisibleForTesting
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Handler mHandler;
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public UsbDetailsController(Context context, UsbDetailsFragment fragment, UsbBackend backend) {
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super(context);
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mContext = context;
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mFragment = fragment;
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mUsbBackend = backend;
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mHandler = new Handler(context.getMainLooper());
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}
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@Override
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public boolean isAvailable() {
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return true;
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}
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/**
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* Called when the USB state has changed, so that this component can be refreshed.
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*
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* @param connected Whether USB is connected
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* @param functions A mask of the currently enabled functions
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* @param powerRole The current power role
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* @param dataRole The current data role
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*/
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@UiThread
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protected abstract void refresh(boolean connected, long functions, int powerRole, int dataRole);
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}
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