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/*
* Copyright (C) 2008 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.bluetooth;
import com.android.settings.R;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.preference.Preference;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import com.android.settings.bluetooth.LocalBluetoothProfileManager.Profile;
import java.util.Map;
/**
* BluetoothDevicePreference is the preference type used to display each remote
* Bluetooth device in the Bluetooth Settings screen.
*/
public class BluetoothDevicePreference extends Preference implements
CachedBluetoothDevice.Callback, OnClickListener {
private static final String TAG = "BluetoothDevicePreference";
private static int sDimAlpha = Integer.MIN_VALUE;
private final CachedBluetoothDevice mCachedDevice;
private ImageView mDeviceSettings;
private OnClickListener mOnSettingsClickListener;
/**
* Cached local copy of whether the device is busy. This is only updated
* from {@link #onDeviceAttributesChanged()}.
*/
private boolean mIsBusy;
public BluetoothDevicePreference(Context context, CachedBluetoothDevice cachedDevice) {
super(context);
if (sDimAlpha == Integer.MIN_VALUE) {
TypedValue outValue = new TypedValue();
context.getTheme().resolveAttribute(android.R.attr.disabledAlpha, outValue, true);
sDimAlpha = (int) (outValue.getFloat() * 255);
}
mCachedDevice = cachedDevice;
setWidgetLayoutResource(R.layout.preference_bluetooth);
cachedDevice.registerCallback(this);
onDeviceAttributesChanged();
}
public CachedBluetoothDevice getCachedDevice() {
return mCachedDevice;
}
public void setOnSettingsClickListener(OnClickListener listener) {
mOnSettingsClickListener = listener;
}
@Override
protected void onPrepareForRemoval() {
super.onPrepareForRemoval();
mCachedDevice.unregisterCallback(this);
}
public void onDeviceAttributesChanged() {
/*
* The preference framework takes care of making sure the value has
* changed before proceeding.
*/
setTitle(mCachedDevice.getName());
/*
* TODO: Showed "Paired" even though it was "Connected". This may be
* related to BluetoothHeadset not bound to the actual
* BluetoothHeadsetService when we got here.
*/
setSummary(mCachedDevice.getSummary());
// Used to gray out the item
mIsBusy = mCachedDevice.isBusy();
// Data has changed
notifyChanged();
// This could affect ordering, so notify that also
notifyHierarchyChanged();
}
@Override
public boolean isEnabled() {
// Temp fix until we have 2053751 fixed in the framework
setEnabled(true);
return super.isEnabled() && !mIsBusy;
}
@Override
protected void onBindView(View view) {
// Disable this view if the bluetooth enable/disable preference view is off
if (null != findPreferenceInHierarchy("bt_checkbox")) {
setDependency("bt_checkbox");
}
super.onBindView(view);
ImageView btClass = (ImageView) view.findViewById(android.R.id.icon);
btClass.setImageResource(mCachedDevice.getBtClassDrawable());
btClass.setAlpha(!mIsBusy ? 255 : sDimAlpha);
mDeviceSettings = (ImageView) view.findViewById(R.id.deviceDetails);
if (mOnSettingsClickListener != null) {
mDeviceSettings.setOnClickListener(this);
mDeviceSettings.setTag(mCachedDevice);
mDeviceSettings.setAlpha(!mIsBusy ? 255 : sDimAlpha);
} else { // Hide the settings icon and divider
mDeviceSettings.setVisibility(View.GONE);
ImageView divider = (ImageView) view.findViewById(R.id.divider);
if (divider != null) {
divider.setVisibility(View.GONE);
}
}
LayoutInflater inflater = (LayoutInflater)
getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ViewGroup profilesGroup = (ViewGroup) view.findViewById(R.id.profileIcons);
Map<Profile, Drawable> profileIcons = mCachedDevice.getProfileIcons();
for (Profile profile : profileIcons.keySet()) {
Drawable icon = profileIcons.get(profile);
inflater.inflate(R.layout.profile_icon_small, profilesGroup, true);
ImageView imageView =
(ImageView) profilesGroup.getChildAt(profilesGroup.getChildCount() - 1);
imageView.setImageDrawable(icon);
boolean profileEnabled = mCachedDevice.isConnectedProfile(profile);
imageView.setAlpha(profileEnabled ? 255 : sDimAlpha);
}
}
public void onClick(View v) {
if (v == mDeviceSettings) {
if (mOnSettingsClickListener != null) mOnSettingsClickListener.onClick(v);
}
}
@Override
public int compareTo(Preference another) {
if (!(another instanceof BluetoothDevicePreference)) {
// Put other preference types above us
return 1;
}
return mCachedDevice.compareTo(((BluetoothDevicePreference) another).mCachedDevice);
}
}
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