am 4ad93639: am 67754d93: Merge "Runtime resource overlay, iteration 2"

* commit '4ad93639d210297764db3ffcd870ff38464943de':
  Runtime resource overlay, iteration 2

3 files changed, 61 insertions, 6 deletions

diff --git a/core/java/android/content/pm/PackageInfo.java b/core/java/android/content/pm/PackageInfo.java
index af1a6d5..785f2b4 100644
--- a/core/java/android/content/pm/PackageInfo.java
+++ b/core/java/android/content/pm/PackageInfo.java
@@ -227,6 +227,14 @@ public class PackageInfo implements Parcelable {
     /** @hide */
     public String requiredAccountType;
 
+    /**
+     * What package, if any, this package will overlay.
+     *
+     * Package name of target package, or null.
+     * @hide
+     */
+    public String overlayTarget;
+
     public PackageInfo() {
     }
 
@@ -270,6 +278,7 @@ public class PackageInfo implements Parcelable {
         dest.writeInt(requiredForAllUsers ? 1 : 0);
         dest.writeString(restrictedAccountType);
         dest.writeString(requiredAccountType);
+        dest.writeString(overlayTarget);
     }
 
     public static final Parcelable.Creator<PackageInfo> CREATOR
@@ -311,5 +320,6 @@ public class PackageInfo implements Parcelable {
         requiredForAllUsers = source.readInt() != 0;
         restrictedAccountType = source.readString();
         requiredAccountType = source.readString();
+        overlayTarget = source.readString();
     }
 }
diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
index 4607902..52564eb 100644
--- a/core/java/android/content/pm/PackageParser.java
+++ b/core/java/android/content/pm/PackageParser.java
@@ -307,6 +307,7 @@ public class PackageParser {
         }
         pi.restrictedAccountType = p.mRestrictedAccountType;
         pi.requiredAccountType = p.mRequiredAccountType;
+        pi.overlayTarget = p.mOverlayTarget;
         pi.firstInstallTime = firstInstallTime;
         pi.lastUpdateTime = lastUpdateTime;
         if ((flags&PackageManager.GET_GIDS) != 0) {
@@ -490,6 +491,11 @@ public class PackageParser {
 
     public Package parsePackage(File sourceFile, String destCodePath,
             DisplayMetrics metrics, int flags) {
+        return parsePackage(sourceFile, destCodePath, metrics, flags, false);
+    }
+
+    public Package parsePackage(File sourceFile, String destCodePath,
+            DisplayMetrics metrics, int flags, boolean trustedOverlay) {
         mParseError = PackageManager.INSTALL_SUCCEEDED;
 
         mArchiveSourcePath = sourceFile.getPath();
@@ -542,7 +548,7 @@ public class PackageParser {
         Exception errorException = null;
         try {
             // XXXX todo: need to figure out correct configuration.
-            pkg = parsePackage(res, parser, flags, errorText);
+            pkg = parsePackage(res, parser, flags, trustedOverlay, errorText);
         } catch (Exception e) {
             errorException = e;
             mParseError = PackageManager.INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION;
@@ -951,8 +957,8 @@ public class PackageParser {
     }
 
     private Package parsePackage(
-        Resources res, XmlResourceParser parser, int flags, String[] outError)
-        throws XmlPullParserException, IOException {
+        Resources res, XmlResourceParser parser, int flags, boolean trustedOverlay,
+        String[] outError) throws XmlPullParserException, IOException {
         AttributeSet attrs = parser;
 
         mParseInstrumentationArgs = null;
@@ -1051,6 +1057,31 @@ public class PackageParser {
                 if (!parseApplication(pkg, res, parser, attrs, flags, outError)) {
                     return null;
                 }
+            } else if (tagName.equals("overlay")) {
+                pkg.mTrustedOverlay = trustedOverlay;
+
+                sa = res.obtainAttributes(attrs,
+                        com.android.internal.R.styleable.AndroidManifestResourceOverlay);
+                pkg.mOverlayTarget = sa.getString(
+                        com.android.internal.R.styleable.AndroidManifestResourceOverlay_targetPackage);
+                pkg.mOverlayPriority = sa.getInt(
+                        com.android.internal.R.styleable.AndroidManifestResourceOverlay_priority,
+                        -1);
+                sa.recycle();
+
+                if (pkg.mOverlayTarget == null) {
+                    outError[0] = "<overlay> does not specify a target package";
+                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
+                    return null;
+                }
+                if (pkg.mOverlayPriority < 0 || pkg.mOverlayPriority > 9999) {
+                    outError[0] = "<overlay> priority must be between 0 and 9999";
+                    mParseError =
+                        PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
+                    return null;
+                }
+                XmlUtils.skipCurrentTag(parser);
+
             } else if (tagName.equals("keys")) {
                 if (!parseKeys(pkg, res, parser, attrs, outError)) {
                     return null;
@@ -3546,6 +3577,10 @@ public class PackageParser {
          */
         public ManifestDigest manifestDigest;
 
+        public String mOverlayTarget;
+        public int mOverlayPriority;
+        public boolean mTrustedOverlay;
+
         /**
          * Data used to feed the KeySetManager
          */
diff --git a/core/java/android/content/res/AssetManager.java b/core/java/android/content/res/AssetManager.java
index 780c4be..418bdda 100644
--- a/core/java/android/content/res/AssetManager.java
+++ b/core/java/android/content/res/AssetManager.java
@@ -90,7 +90,7 @@ public final class AssetManager {
                 mNumRefs = 0;
                 incRefsLocked(this.hashCode());
             }
-            init();
+            init(false);
             if (localLOGV) Log.v(TAG, "New asset manager: " + this);
             ensureSystemAssets();
         }
@@ -113,7 +113,7 @@ public final class AssetManager {
                 incRefsLocked(this.hashCode());
             }
         }
-        init();
+        init(true);
         if (localLOGV) Log.v(TAG, "New asset manager: " + this);
     }
 
@@ -615,6 +615,16 @@ public final class AssetManager {
 
     private native final int addAssetPathNative(String path);
 
+     /**
+     * Add a set of assets to overlay an already added set of assets.
+     *
+     * This is only intended for application resources. System wide resources
+     * are handled before any Java code is executed.
+     *
+     * {@hide}
+     */
+    public native final int addOverlayPath(String idmapPath);
+
     /**
      * Add multiple sets of assets to the asset manager at once.  See
      * {@link #addAssetPath(String)} for more information.  Returns array of
@@ -752,7 +762,7 @@ public final class AssetManager {
     private native final int[] getArrayStringInfo(int arrayRes);
     /*package*/ native final int[] getArrayIntResource(int arrayRes);
 
-    private native final void init();
+    private native final void init(boolean isSystem);
     private native final void destroy();
 
     private final void incRefsLocked(long id) {