Fixes #1963229. Introduces Context#isRestricted().

A restricted Context is a special type of Context that prevents specific features
from being used. For instance, android:onClick, used by View, can be dangerous when
used from within apps widgets. By using a restricted Context to inflate apps widgets,
widgets providers are prevented from using android:onClick.

1 files changed, 7 insertions, 0 deletions

diff --git a/core/java/android/app/ApplicationContext.java b/core/java/android/app/ApplicationContext.java
index 00b0593..61cd0fe 100644
--- a/core/java/android/app/ApplicationContext.java
+++ b/core/java/android/app/ApplicationContext.java
@@ -184,6 +184,7 @@ class ApplicationContext extends Context {
     private StatusBarManager mStatusBarManager = null;
     private TelephonyManager mTelephonyManager = null;
     private ClipboardManager mClipboardManager = null;
+    private boolean mRestricted;
 
     private final Object mSync = new Object();
 
@@ -1336,6 +1337,7 @@ class ApplicationContext extends Context {
             mMainThread.getPackageInfo(packageName, flags);
         if (pi != null) {
             ApplicationContext c = new ApplicationContext();
+            c.mRestricted = (flags & CONTEXT_RESTRICTED) == CONTEXT_RESTRICTED;
             c.init(pi, null, mMainThread);
             if (c.mResources != null) {
                 return c;
@@ -1347,6 +1349,11 @@ class ApplicationContext extends Context {
             "Application package " + packageName + " not found");
     }
 
+    @Override
+    public boolean isRestricted() {
+        return mRestricted;
+    }
+
     private File getDataDirFile() {
         if (mPackageInfo != null) {
             return mPackageInfo.getDataDirFile();