Handle DevicePolicyManagement and safe mode when inflating widgets (51117262) · Commits · e / os / android_frameworks_base

core/java/android/provider/Settings.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -3228,6 +3228,13 @@ public final class Settings {
		public static final String LOCK_SCREEN_APPWIDGET_IDS =
		"lock_screen_appwidget_ids";

		/**
		* Id of the appwidget shown on the lock screen when appwidgets are disabled.
		* @hide
		*/
		public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
		"lock_screen_fallback_appwidget_id";

		/**
		* Index of the lockscreen appwidget to restore, -1 if none.
		* @hide

core/java/com/android/internal/widget/LockPatternUtils.java

+31 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package com.android.internal.widget;

		import android.app.ActivityManagerNative;
		import android.app.admin.DevicePolicyManager;
		import android.appwidget.AppWidgetManager;
		import android.content.ContentResolver;
		import android.content.Context;
		import android.content.Intent;
		@@ -35,6 +36,7 @@ import android.security.KeyStore;
		import android.telephony.TelephonyManager;
		import android.text.TextUtils;
		import android.util.Log;
		import android.view.IWindowManager;
		import android.view.View;
		import android.widget.Button;

		@@ -1112,6 +1114,25 @@ public class LockPatternUtils {
		return sb.toString();
		}

		// appwidget used when appwidgets are disabled (we make an exception for
		// default clock widget)
		public void writeFallbackAppWidgetId(int appWidgetId) {
		Settings.Secure.putIntForUser(mContentResolver,
		Settings.Secure.LOCK_SCREEN_FALLBACK_APPWIDGET_ID,
		appWidgetId,
		UserHandle.USER_CURRENT);
		}

		// appwidget used when appwidgets are disabled (we make an exception for
		// default clock widget)
		public int getFallbackAppWidgetId() {
		return Settings.Secure.getIntForUser(
		mContentResolver,
		Settings.Secure.LOCK_SCREEN_FALLBACK_APPWIDGET_ID,
		AppWidgetManager.INVALID_APPWIDGET_ID,
		UserHandle.USER_CURRENT);
		}

		private void writeAppWidgets(int[] appWidgetIds) {
		Settings.Secure.putStringForUser(mContentResolver,
		Settings.Secure.LOCK_SCREEN_APPWIDGET_IDS,
		@@ -1326,4 +1347,14 @@ public class LockPatternUtils {
		return getBoolean(LOCKSCREEN_POWER_BUTTON_INSTANTLY_LOCKS, true);
		}

		public static boolean isSafeModeEnabled() {
		try {
		return IWindowManager.Stub.asInterface(
		ServiceManager.getService("window")).isSafeModeEnabled();
		} catch (RemoteException e) {
		// Shouldn't happen!
		}
		return false;
		}

		}

policy/src/com/android/internal/policy/impl/keyguard/KeyguardHostView.java

+149 −69

Original line number	Diff line number	Diff line
		@@ -37,6 +37,8 @@ import android.os.Looper;
		import android.os.Parcel;
		import android.os.Parcelable;
		import android.os.SystemClock;
		import android.os.SystemProperties;
		import android.os.UserHandle;
		import android.os.UserManager;
		import android.util.AttributeSet;
		import android.util.Log;
		@@ -57,7 +59,7 @@ import java.io.File;
		import java.util.List;

		public class KeyguardHostView extends KeyguardViewBase {
		private static final String TAG = "KeyguardViewHost";
		private static final String TAG = "KeyguardHostView";

		// Use this to debug all of keyguard
		public static boolean DEBUG = KeyguardViewMediator.DEBUG;
		@@ -87,6 +89,12 @@ public class KeyguardHostView extends KeyguardViewBase {

		private Rect mTempRect = new Rect();

		private int mDisabledFeatures;

		private boolean mCameraDisabled;

		private boolean mSafeModeEnabled;

		/package/ interface TransportCallback {
		void onListenerDetached();
		void onListenerAttached();
		@@ -113,6 +121,25 @@ public class KeyguardHostView extends KeyguardViewBase {
		mSecurityModel = new KeyguardSecurityModel(context);

		mViewStateManager = new KeyguardViewStateManager(this);

		DevicePolicyManager dpm =
		(DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
		if (dpm != null) {
		mDisabledFeatures = getDisabledFeatures(dpm);
		mCameraDisabled = dpm.getCameraDisabled(null);
		}

		mSafeModeEnabled = LockPatternUtils.isSafeModeEnabled();

		if (mSafeModeEnabled) {
		Log.v(TAG, "Keyguard widgets disabled by safe mode");
		}
		if ((mDisabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL) != 0) {
		Log.v(TAG, "Keyguard widgets disabled by DPM");
		}
		if ((mDisabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA) != 0) {
		Log.v(TAG, "Keyguard secure camera disabled by DPM");
		}
		}

		@Override
		@@ -177,9 +204,10 @@ public class KeyguardHostView extends KeyguardViewBase {
		}

		addDefaultWidgets();

		addWidgetsFromSettings();
		checkAppWidgetConsistency();
		mSwitchPageRunnable.run();

		// This needs to be called after the pages are all added.
		mViewStateManager.showUsabilityHints();

		@@ -187,6 +215,24 @@ public class KeyguardHostView extends KeyguardViewBase {
		updateSecurityViews();
		}

		private int getDisabledFeatures(DevicePolicyManager dpm) {
		int disabledFeatures = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE;
		if (dpm != null) {
		final int currentUser = mLockPatternUtils.getCurrentUser();
		disabledFeatures = dpm.getKeyguardDisabledFeatures(null, currentUser);
		}
		return disabledFeatures;
		}

		private boolean widgetsDisabledByDpm() {
		return (mDisabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL) != 0;
		}

		private boolean cameraDisabledByDpm() {
		return mCameraDisabled
		\|\| (mDisabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA) != 0;
		}

		private void updateSecurityViews() {
		int children = mSecurityViewContainer.getChildCount();
		for (int i = 0; i < children; i++) {
		@@ -821,15 +867,18 @@ public class KeyguardHostView extends KeyguardViewBase {
		}
		}

		private boolean addWidget(int appId, int pageIndex) {
		private boolean addWidget(int appId, int pageIndex, boolean updateDbIfFailed) {
		AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appId);
		if (appWidgetInfo != null) {
		AppWidgetHostView view = getAppWidgetHost().createView(mContext, appId, appWidgetInfo);
		addWidget(view, pageIndex);
		return true;
		} else {
		if (updateDbIfFailed) {
		Log.w(TAG, "AppWidgetInfo for app widget id " + appId + " was null, deleting");
		mAppWidgetHost.deleteAppWidgetId(appId);
		mLockPatternUtils.removeAppWidget(appId);
		}
		return false;
		}
		}
		@@ -885,16 +934,9 @@ public class KeyguardHostView extends KeyguardViewBase {
		LayoutInflater inflater = LayoutInflater.from(mContext);
		inflater.inflate(R.layout.keyguard_transport_control_view, this, true);

		View addWidget = inflater.inflate(R.layout.keyguard_add_widget, null, true);
		if (!mSafeModeEnabled && !widgetsDisabledByDpm()) {
		View addWidget = inflater.inflate(R.layout.keyguard_add_widget, this, false);
		mAppWidgetContainer.addWidget(addWidget);
		if (mContext.getResources().getBoolean(R.bool.kg_enable_camera_default_widget)) {
		View cameraWidget =
		CameraWidgetFrame.create(mContext, mCameraWidgetCallbacks, mActivityLauncher);
		if (cameraWidget != null) {
		mAppWidgetContainer.addWidget(cameraWidget);
		}
		}

		View addWidgetButton = addWidget.findViewById(R.id.keyguard_add_widget_view);
		addWidgetButton.setOnClickListener(new OnClickListener() {
		@Override
		@@ -907,6 +949,19 @@ public class KeyguardHostView extends KeyguardViewBase {
		}
		}
		});
		}

		// We currently disable cameras in safe mode because we support loading 3rd party
		// cameras we can't trust. TODO: plumb safe mode into camera creation code and only
		// inflate system-provided camera?
		if (!mSafeModeEnabled && !cameraDisabledByDpm()
		&& mContext.getResources().getBoolean(R.bool.kg_enable_camera_default_widget)) {
		View cameraWidget =
		CameraWidgetFrame.create(mContext, mCameraWidgetCallbacks, mActivityLauncher);
		if (cameraWidget != null) {
		mAppWidgetContainer.addWidget(cameraWidget);
		}
		}

		enableUserSelectorIfNecessary();
		initializeTransportControl();
		@@ -969,14 +1024,15 @@ public class KeyguardHostView extends KeyguardViewBase {
		}
		}

		private int getAddPageIndex() {
		private int getInsertPageIndex() {
		View addWidget = mAppWidgetContainer.findViewById(R.id.keyguard_add_widget);
		int addPageIndex = mAppWidgetContainer.indexOfChild(addWidget);
		// This shouldn't happen, but just to be safe!
		if (addPageIndex < 0) {
		addPageIndex = 0;
		int insertionIndex = mAppWidgetContainer.indexOfChild(addWidget);
		if (insertionIndex < 0) {
		insertionIndex = 0; // no add widget page found
		} else {
		insertionIndex++; // place after add widget
		}
		return addPageIndex;
		return insertionIndex;
		}

		private void addDefaultStatusWidget(int index) {
		@@ -986,18 +1042,11 @@ public class KeyguardHostView extends KeyguardViewBase {
		}

		private void addWidgetsFromSettings() {
		DevicePolicyManager dpm =
		(DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
		if (dpm != null) {
		final int currentUser = mLockPatternUtils.getCurrentUser();
		final int disabledFeatures = dpm.getKeyguardDisabledFeatures(null, currentUser);
		if ((disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL) != 0) {
		Log.v(TAG, "Keyguard widgets disabled because of device policy admin");
		if (mSafeModeEnabled \|\| widgetsDisabledByDpm()) {
		return;
		}
		}

		int addPageIndex = getAddPageIndex();
		int insertionIndex = getInsertPageIndex();

		// Add user-selected widget
		final int[] widgets = mLockPatternUtils.getAppWidgets();
		@@ -1007,50 +1056,90 @@ public class KeyguardHostView extends KeyguardViewBase {
		} else {
		for (int i = widgets.length -1; i >= 0; i--) {
		if (widgets[i] == LockPatternUtils.ID_DEFAULT_STATUS_WIDGET) {
		addDefaultStatusWidget(addPageIndex + 1);
		addDefaultStatusWidget(insertionIndex);
		} else {
		// We add the widgets from left to right, starting after the first page after
		// the add page. We count down, since the order will be persisted from right
		// to left, starting after camera.
		addWidget(widgets[i], addPageIndex + 1);
		addWidget(widgets[i], insertionIndex, true);
		}
		}
		}
		checkAppWidgetConsistency();
		}

		private int allocateIdForDefaultAppWidget() {
		int appWidgetId;
		Resources res = getContext().getResources();
		ComponentName defaultAppWidget = new ComponentName(
		res.getString(R.string.widget_default_package_name),
		res.getString(R.string.widget_default_class_name));

		// Note: we don't support configuring the widget
		appWidgetId = mAppWidgetHost.allocateAppWidgetId();

		try {
		mAppWidgetManager.bindAppWidgetId(appWidgetId, defaultAppWidget);

		} catch (IllegalArgumentException e) {
		Log.e(TAG, "Error when trying to bind default AppWidget: " + e);
		mAppWidgetHost.deleteAppWidgetId(appWidgetId);
		appWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
		}
		return appWidgetId;
		}

		public void checkAppWidgetConsistency() {
		final int childCount = mAppWidgetContainer.getChildCount();
		boolean widgetPageExists = false;
		for (int i = 0; i < childCount; i++) {
		if (isWidgetPage(i)) {
		if (mAppWidgetContainer.isWidgetPage(i)) {
		widgetPageExists = true;
		break;
		}
		}
		if (!widgetPageExists) {
		final int addPageIndex = getAddPageIndex();
		final int insertPageIndex = getInsertPageIndex();

		Resources res = getContext().getResources();
		ComponentName defaultAppWidget = new ComponentName(
		res.getString(R.string.widget_default_package_name),
		res.getString(R.string.widget_default_class_name));
		final boolean userAddedWidgetsEnabled = !widgetsDisabledByDpm();
		boolean addedDefaultAppWidget = false;

		// Note: we don't support configuring the widget
		int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
		boolean bindSuccessful = false;
		try {
		mAppWidgetManager.bindAppWidgetId(appWidgetId, defaultAppWidget);
		bindSuccessful = true;
		} catch (IllegalArgumentException e) {
		Log.e(TAG, "Error when trying to bind default AppWidget: " + e);
		if (!mSafeModeEnabled) {
		if (userAddedWidgetsEnabled) {
		int appWidgetId = allocateIdForDefaultAppWidget();
		if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
		addedDefaultAppWidget = addWidget(appWidgetId, insertPageIndex, true);
		}
		} else {
		// note: even if widgetsDisabledByDpm() returns true, we still bind/create
		// the default appwidget if possible
		int appWidgetId = mLockPatternUtils.getFallbackAppWidgetId();
		if (appWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) {
		appWidgetId = allocateIdForDefaultAppWidget();
		if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
		mLockPatternUtils.writeFallbackAppWidgetId(appWidgetId);
		}
		}
		if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
		addedDefaultAppWidget = addWidget(appWidgetId, insertPageIndex, false);
		if (!addedDefaultAppWidget) {
		mAppWidgetHost.deleteAppWidgetId(appWidgetId);
		mLockPatternUtils.writeFallbackAppWidgetId(
		AppWidgetManager.INVALID_APPWIDGET_ID);
		}
		}
		}
		}

		// Use the built-in status/clock view if we can't inflate the default widget
		if (!(bindSuccessful && addWidget(appWidgetId, addPageIndex + 1))) {
		addDefaultStatusWidget(addPageIndex + 1);
		if (!addedDefaultAppWidget) {
		addDefaultStatusWidget(insertPageIndex);
		}

		// trigger DB updates only if user-added widgets are enabled
		if (!mSafeModeEnabled && userAddedWidgetsEnabled) {
		mAppWidgetContainer.onAddView(
		mAppWidgetContainer.getChildAt(addPageIndex + 1), addPageIndex + 1);
		mAppWidgetContainer.getChildAt(insertPageIndex), insertPageIndex);
		}
		}
		}

		@@ -1154,15 +1243,6 @@ public class KeyguardHostView extends KeyguardViewBase {
		return null;
		}

		private boolean isWidgetPage(int pageIndex) {
		View v = mAppWidgetContainer.getChildAt(pageIndex);
		if (v != null && v instanceof KeyguardWidgetFrame) {
		KeyguardWidgetFrame kwf = (KeyguardWidgetFrame) v;
		return kwf.getContentAppWidgetId() != AppWidgetManager.INVALID_APPWIDGET_ID;
		}
		return false;
		}

		private int getStickyWidget() {
		// The first time we query the persistent state. From that point, we use a locally updated
		// notion of the sticky widget page.

policy/src/com/android/internal/policy/impl/keyguard/KeyguardViewBase.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -260,4 +260,5 @@ public abstract class KeyguardViewBase extends FrameLayout {
		KeyguardViewMediator.ViewMediatorCallback viewMediatorCallback) {
		mViewMediatorCallback = viewMediatorCallback;
		}

		}

policy/src/com/android/internal/policy/impl/keyguard/KeyguardWidgetPager.java

+18 −29

Original line number	Diff line number	Diff line
		@@ -22,9 +22,9 @@ import android.animation.ObjectAnimator;
		import android.animation.PropertyValuesHolder;
		import android.animation.TimeInterpolator;
		import android.appwidget.AppWidgetHostView;
		import android.appwidget.AppWidgetManager;
		import android.appwidget.AppWidgetProviderInfo;
		import android.content.Context;
		import android.content.res.Resources;
		import android.os.Handler;
		import android.os.HandlerThread;
		import android.util.AttributeSet;
		@@ -38,7 +38,6 @@ import android.view.accessibility.AccessibilityEvent;
		import android.view.accessibility.AccessibilityManager;
		import android.widget.FrameLayout;

		import com.android.internal.R;
		import com.android.internal.widget.LockPatternUtils;

		import java.util.ArrayList;
		@@ -69,8 +68,6 @@ public class KeyguardWidgetPager extends PagedView implements PagedView.PageSwit
		private int mPage = 0;
		private Callbacks mCallbacks;

		private boolean mCameraWidgetEnabled;

		private int mWidgetToResetAfterFadeOut;

		// Bouncer
		@@ -97,10 +94,6 @@ public class KeyguardWidgetPager extends PagedView implements PagedView.PageSwit

		setPageSwitchListener(this);

		Resources r = getResources();
		mCameraWidgetEnabled = r.getBoolean(R.bool.kg_enable_camera_default_widget);
		mCenterSmallWidgetsVertically =
		r.getBoolean(com.android.internal.R.bool.kg_center_small_widgets_vertically);
		mBackgroundWorkerThread = new HandlerThread("KeyguardWidgetPager Worker");
		mBackgroundWorkerThread.start();
		mBackgroundWorkerHandler = new Handler(mBackgroundWorkerThread.getLooper());
		@@ -485,33 +478,29 @@ public class KeyguardWidgetPager extends PagedView implements PagedView.PageSwit
		}
		}

		public boolean isWidgetPage(int pageIndex) {
		if (pageIndex < 0 \|\| pageIndex >= getChildCount()) {
		return false;
		}
		View v = getChildAt(pageIndex);
		if (v != null && v instanceof KeyguardWidgetFrame) {
		KeyguardWidgetFrame kwf = (KeyguardWidgetFrame) v;
		return kwf.getContentAppWidgetId() != AppWidgetManager.INVALID_APPWIDGET_ID;
		}
		return false;
		}

		@Override
		void boundByReorderablePages(boolean isReordering, int[] range) {
		if (isReordering) {
		if (isAddWidgetPageVisible()) {
		range[0]++;
		}
		if (isMusicWidgetVisible()) {
		// Remove non-widget pages from the range
		while (range[1] > range[0] && !isWidgetPage(range[1])) {
		range[1]--;
		}
		if (isCameraWidgetVisible()) {
		range[1]--;
		}
		}
		}

		/*
		* Special widgets
		*/
		boolean isAddWidgetPageVisible() {
		// TODO: Make proper test once we decide whether the add-page is always showing
		return true;
		while (range[0] < range[1] && !isWidgetPage(range[0])) {
		range[0]++;
		}
		boolean isMusicWidgetVisible() {
		return mViewStateManager.getTransportState() != KeyguardViewStateManager.TRANSPORT_GONE;
		}
		boolean isCameraWidgetVisible() {
		return mCameraWidgetEnabled;
		}

		protected void reorderStarting() {
		@@ -761,7 +750,7 @@ public class KeyguardWidgetPager extends PagedView implements PagedView.PageSwit

		boolean isAddPage(int pageIndex) {
		View v = getChildAt(pageIndex);
		return v != null && v.getId() == R.id.keyguard_add_widget;
		return v != null && v.getId() == com.android.internal.R.id.keyguard_add_widget;
		}

		boolean isCameraPage(int pageIndex) {