| /* |
| * 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.settingslib.wifi; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.StateListDrawable; |
| import android.net.wifi.WifiConfiguration; |
| import android.os.Looper; |
| import android.os.UserHandle; |
| import android.support.annotation.VisibleForTesting; |
| import android.support.v7.preference.Preference; |
| import android.support.v7.preference.PreferenceViewHolder; |
| import android.text.TextUtils; |
| import android.util.AttributeSet; |
| import android.util.SparseArray; |
| import android.view.View; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| |
| import com.android.settingslib.R; |
| import com.android.settingslib.TronUtils; |
| import com.android.settingslib.TwoTargetPreference; |
| import com.android.settingslib.Utils; |
| import com.android.settingslib.wifi.AccessPoint.Speed; |
| |
| public class AccessPointPreference extends TwoTargetPreference { |
| |
| private static final int[] STATE_SECURED = { |
| R.attr.state_encrypted |
| }; |
| |
| private static final int[] STATE_METERED = { |
| R.attr.state_metered |
| }; |
| |
| private static final int[] FRICTION_ATTRS = { |
| R.attr.wifi_friction |
| }; |
| |
| private static final int[] WIFI_CONNECTION_STRENGTH = { |
| R.string.accessibility_no_wifi, |
| R.string.accessibility_wifi_one_bar, |
| R.string.accessibility_wifi_two_bars, |
| R.string.accessibility_wifi_three_bars, |
| R.string.accessibility_wifi_signal_full |
| }; |
| |
| @Nullable private final StateListDrawable mFrictionSld; |
| private final int mBadgePadding; |
| private final UserBadgeCache mBadgeCache; |
| private final IconInjector mIconInjector; |
| private TextView mTitleView; |
| |
| private boolean mForSavedNetworks = false; |
| private AccessPoint mAccessPoint; |
| private Drawable mBadge; |
| private int mLevel; |
| private CharSequence mContentDescription; |
| private int mDefaultIconResId; |
| private int mWifiSpeed = Speed.NONE; |
| |
| @Nullable |
| private static StateListDrawable getFrictionStateListDrawable(Context context) { |
| TypedArray frictionSld; |
| try { |
| frictionSld = context.getTheme().obtainStyledAttributes(FRICTION_ATTRS); |
| } catch (Resources.NotFoundException e) { |
| // Fallback for platforms that do not need friction icon resources. |
| frictionSld = null; |
| } |
| return frictionSld != null ? (StateListDrawable) frictionSld.getDrawable(0) : null; |
| } |
| |
| // Used for dummy pref. |
| public AccessPointPreference(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mFrictionSld = null; |
| mBadgePadding = 0; |
| mBadgeCache = null; |
| mIconInjector = new IconInjector(context); |
| } |
| |
| public AccessPointPreference(AccessPoint accessPoint, Context context, UserBadgeCache cache, |
| boolean forSavedNetworks) { |
| this(accessPoint, context, cache, 0 /* iconResId */, forSavedNetworks); |
| refresh(); |
| } |
| |
| public AccessPointPreference(AccessPoint accessPoint, Context context, UserBadgeCache cache, |
| int iconResId, boolean forSavedNetworks) { |
| this(accessPoint, context, cache, iconResId, forSavedNetworks, |
| getFrictionStateListDrawable(context), -1 /* level */, new IconInjector(context)); |
| } |
| |
| @VisibleForTesting |
| AccessPointPreference(AccessPoint accessPoint, Context context, UserBadgeCache cache, |
| int iconResId, boolean forSavedNetworks, StateListDrawable frictionSld, |
| int level, IconInjector iconInjector) { |
| super(context); |
| mBadgeCache = cache; |
| mAccessPoint = accessPoint; |
| mForSavedNetworks = forSavedNetworks; |
| mAccessPoint.setTag(this); |
| mLevel = level; |
| mDefaultIconResId = iconResId; |
| mFrictionSld = frictionSld; |
| mIconInjector = iconInjector; |
| mBadgePadding = context.getResources() |
| .getDimensionPixelSize(R.dimen.wifi_preference_badge_padding); |
| } |
| |
| public AccessPoint getAccessPoint() { |
| return mAccessPoint; |
| } |
| |
| @Override |
| public void onBindViewHolder(final PreferenceViewHolder view) { |
| super.onBindViewHolder(view); |
| if (mAccessPoint == null) { |
| // Used for dummy pref. |
| return; |
| } |
| Drawable drawable = getIcon(); |
| if (drawable != null) { |
| drawable.setLevel(mLevel); |
| } |
| |
| mTitleView = (TextView) view.findViewById(android.R.id.title); |
| if (mTitleView != null) { |
| // Attach to the end of the title view |
| mTitleView.setCompoundDrawablesRelativeWithIntrinsicBounds(null, null, mBadge, null); |
| mTitleView.setCompoundDrawablePadding(mBadgePadding); |
| } |
| view.itemView.setContentDescription(mContentDescription); |
| |
| ImageView frictionImageView = (ImageView) view.findViewById(R.id.friction_icon); |
| bindFrictionImage(frictionImageView); |
| setDividerVisibility(view, View.GONE); |
| } |
| |
| protected void setDividerVisibility(final PreferenceViewHolder view, |
| @View.Visibility int visibility) { |
| final View divider = view.findViewById(R.id.two_target_divider); |
| if (divider != null) { |
| divider.setVisibility(visibility); |
| } |
| } |
| |
| @Override |
| protected int getSecondTargetResId() { |
| return R.layout.access_point_friction_widget; |
| } |
| |
| protected void updateIcon(int level, Context context) { |
| if (level == -1) { |
| safeSetDefaultIcon(); |
| return; |
| } |
| TronUtils.logWifiSettingsSpeed(context, mWifiSpeed); |
| |
| Drawable drawable = mIconInjector.getIcon(level); |
| if (!mForSavedNetworks && drawable != null) { |
| drawable.setTint(Utils.getColorAttr(context, android.R.attr.colorControlNormal)); |
| setIcon(drawable); |
| } else { |
| safeSetDefaultIcon(); |
| } |
| } |
| |
| /** |
| * Binds the friction icon drawable using a StateListDrawable. |
| * |
| * <p>Friction icons will be rebound when notifyChange() is called, and therefore |
| * do not need to be managed in refresh()</p>. |
| */ |
| private void bindFrictionImage(ImageView frictionImageView) { |
| if (frictionImageView == null || mFrictionSld == null) { |
| return; |
| } |
| if (mAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { |
| mFrictionSld.setState(STATE_SECURED); |
| } else if (mAccessPoint.isMetered()) { |
| mFrictionSld.setState(STATE_METERED); |
| } |
| Drawable drawable = mFrictionSld.getCurrent(); |
| frictionImageView.setImageDrawable(drawable); |
| } |
| |
| private void safeSetDefaultIcon() { |
| if (mDefaultIconResId != 0) { |
| setIcon(mDefaultIconResId); |
| } else { |
| setIcon(null); |
| } |
| } |
| |
| protected void updateBadge(Context context) { |
| WifiConfiguration config = mAccessPoint.getConfig(); |
| if (config != null) { |
| // Fetch badge (may be null) |
| // Get the badge using a cache since the PM will ask the UserManager for the list |
| // of profiles every time otherwise. |
| mBadge = mBadgeCache.getUserBadge(config.creatorUid); |
| } |
| } |
| |
| /** |
| * Updates the title and summary; may indirectly call notifyChanged(). |
| */ |
| public void refresh() { |
| setTitle(this, mAccessPoint, mForSavedNetworks); |
| final Context context = getContext(); |
| int level = mAccessPoint.getLevel(); |
| int wifiSpeed = mAccessPoint.getSpeed(); |
| if (level != mLevel || wifiSpeed != mWifiSpeed) { |
| mLevel = level; |
| mWifiSpeed = wifiSpeed; |
| updateIcon(mLevel, context); |
| notifyChanged(); |
| } |
| |
| updateBadge(context); |
| |
| setSummary(mForSavedNetworks ? mAccessPoint.getSavedNetworkSummary() |
| : mAccessPoint.getSettingsSummary()); |
| |
| mContentDescription = buildContentDescription(getContext(), this /* pref */, mAccessPoint); |
| } |
| |
| @Override |
| protected void notifyChanged() { |
| if (Looper.getMainLooper() != Looper.myLooper()) { |
| // Let our BG thread callbacks call setTitle/setSummary. |
| postNotifyChanged(); |
| } else { |
| super.notifyChanged(); |
| } |
| } |
| |
| @VisibleForTesting |
| static void setTitle(AccessPointPreference preference, AccessPoint ap, boolean savedNetworks) { |
| if (savedNetworks) { |
| preference.setTitle(ap.getConfigName()); |
| } else { |
| preference.setTitle(ap.getSsidStr()); |
| } |
| } |
| |
| /** |
| * Helper method to generate content description string. |
| */ |
| @VisibleForTesting |
| static CharSequence buildContentDescription(Context context, Preference pref, AccessPoint ap) { |
| CharSequence contentDescription = pref.getTitle(); |
| final CharSequence summary = pref.getSummary(); |
| if (!TextUtils.isEmpty(summary)) { |
| contentDescription = TextUtils.concat(contentDescription, ",", summary); |
| } |
| int level = ap.getLevel(); |
| if (level >= 0 && level < WIFI_CONNECTION_STRENGTH.length) { |
| contentDescription = TextUtils.concat(contentDescription, ",", |
| context.getString(WIFI_CONNECTION_STRENGTH[level])); |
| } |
| return TextUtils.concat(contentDescription, ",", |
| ap.getSecurity() == AccessPoint.SECURITY_NONE |
| ? context.getString(R.string.accessibility_wifi_security_type_none) |
| : context.getString(R.string.accessibility_wifi_security_type_secured)); |
| } |
| |
| public void onLevelChanged() { |
| postNotifyChanged(); |
| } |
| |
| private void postNotifyChanged() { |
| if (mTitleView != null) { |
| mTitleView.post(mNotifyChanged); |
| } // Otherwise we haven't been bound yet, and don't need to update. |
| } |
| |
| private final Runnable mNotifyChanged = new Runnable() { |
| @Override |
| public void run() { |
| notifyChanged(); |
| } |
| }; |
| |
| public static class UserBadgeCache { |
| private final SparseArray<Drawable> mBadges = new SparseArray<>(); |
| private final PackageManager mPm; |
| |
| public UserBadgeCache(PackageManager pm) { |
| mPm = pm; |
| } |
| |
| private Drawable getUserBadge(int userId) { |
| int index = mBadges.indexOfKey(userId); |
| if (index < 0) { |
| Drawable badge = mPm.getUserBadgeForDensity(new UserHandle(userId), 0 /* dpi */); |
| mBadges.put(userId, badge); |
| return badge; |
| } |
| return mBadges.valueAt(index); |
| } |
| } |
| |
| static class IconInjector { |
| private final Context mContext; |
| |
| public IconInjector(Context context) { |
| mContext = context; |
| } |
| |
| public Drawable getIcon(int level) { |
| return mContext.getDrawable(Utils.getWifiIconResource(level)); |
| } |
| } |
| } |