Make DatePicker rendering not fail.

Ensures that having a DatePicker in the layout doesn't crash the
complete rendering. The rendering is still not perfect, but at least it
works.

- Return a non-null window token so that ViewPager thinks that it's
  attached to a window and doesn't skip populating the views.
- Fix a style not found issue.

Change-Id: Ied2b71de5b32bcb640bf4ec445e8a39509f800e9

3 files changed, 104 insertions, 26 deletions

diff --git a/tools/layoutlib/bridge/src/android/view/View_Delegate.java b/tools/layoutlib/bridge/src/android/view/View_Delegate.java
index 8215f7c..408ec54 100644
--- a/tools/layoutlib/bridge/src/android/view/View_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/view/View_Delegate.java
@@ -16,8 +16,12 @@
 
 package android.view;
 
+import com.android.layoutlib.bridge.android.BridgeContext;
 import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
 
+import android.content.Context;
+import android.os.IBinder;
+
 /**
  * Delegate used to provide new implementation of a select few methods of {@link View}
  *
@@ -31,4 +35,13 @@ public class View_Delegate {
     /*package*/ static boolean isInEditMode(View thisView) {
         return true;
     }
+
+    @LayoutlibDelegate
+    /*package*/ static IBinder getWindowToken(View thisView) {
+        Context baseContext = BridgeContext.getBaseContext(thisView.getContext());
+        if (baseContext instanceof BridgeContext) {
+            return ((BridgeContext) baseContext).getBinder();
+        }
+        return null;
+    }
 }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java
index 59f07a7..eded804 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java
@@ -65,8 +65,11 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
+import android.os.IInterface;
 import android.os.Looper;
+import android.os.Parcel;
 import android.os.PowerManager;
+import android.os.RemoteException;
 import android.os.UserHandle;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
@@ -82,6 +85,7 @@ import android.view.accessibility.AccessibilityManager;
 import android.view.textservice.TextServicesManager;
 
 import java.io.File;
+import java.io.FileDescriptor;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
@@ -139,6 +143,7 @@ public final class BridgeContext extends Context {
     private final Stack<BridgeXmlBlockParser> mParserStack = new Stack<BridgeXmlBlockParser>();
     private SharedPreferences mSharedPreferences;
     private ClassLoader mClassLoader;
+    private IBinder mBinder;
 
     /**
      * @param projectKey An Object identifying the project. This is used for the cache mechanism.
@@ -708,44 +713,48 @@ public final class BridgeContext extends Context {
                 }
             }
         } else if (defStyleRes != 0) {
-            boolean isFrameworkRes = true;
-            Pair<ResourceType, String> value = Bridge.resolveResourceId(defStyleRes);
-            if (value == null) {
-                value = mLayoutlibCallback.resolveResourceId(defStyleRes);
-                isFrameworkRes = false;
-            }
+            StyleResourceValue item = mDynamicIdToStyleMap.get(defStyleRes);
+            if (item != null) {
+                defStyleValues = item;
+            } else {
+                boolean isFrameworkRes = true;
+                Pair<ResourceType, String> value = Bridge.resolveResourceId(defStyleRes);
+                if (value == null) {
+                    value = mLayoutlibCallback.resolveResourceId(defStyleRes);
+                    isFrameworkRes = false;
+                }
 
-            if (value != null) {
-                if ((value.getFirst() == ResourceType.STYLE)) {
-                    // look for the style in all resources:
-                    StyleResourceValue item = mRenderResources.getStyle(value.getSecond(),
-                            isFrameworkRes);
-                    if (item != null) {
-                        if (defaultPropMap != null) {
-                            defaultPropMap.put("style", item.getName());
+                if (value != null) {
+                    if ((value.getFirst() == ResourceType.STYLE)) {
+                        // look for the style in all resources:
+                        item = mRenderResources.getStyle(value.getSecond(), isFrameworkRes);
+                        if (item != null) {
+                            if (defaultPropMap != null) {
+                                defaultPropMap.put("style", item.getName());
+                            }
+
+                            defStyleValues = item;
+                        } else {
+                            Bridge.getLog().error(null,
+                                    String.format(
+                                            "Style with id 0x%x (resolved to '%s') does not exist.",
+                                            defStyleRes, value.getSecond()),
+                                    null);
                         }
-
-                        defStyleValues = item;
                     } else {
                         Bridge.getLog().error(null,
                                 String.format(
-                                        "Style with id 0x%x (resolved to '%s') does not exist.",
-                                        defStyleRes, value.getSecond()),
+                                        "Resource id 0x%x is not of type STYLE (instead %s)",
+                                        defStyleRes, value.getFirst().toString()),
                                 null);
                     }
                 } else {
                     Bridge.getLog().error(null,
                             String.format(
-                                    "Resource id 0x%x is not of type STYLE (instead %s)",
-                                    defStyleRes, value.getFirst().toString()),
+                                    "Failed to find style with id 0x%x in current theme",
+                                    defStyleRes),
                             null);
                 }
-            } else {
-                Bridge.getLog().error(null,
-                        String.format(
-                                "Failed to find style with id 0x%x in current theme",
-                                defStyleRes),
-                        null);
             }
         }
 
@@ -996,6 +1005,61 @@ public final class BridgeContext extends Context {
         return context;
     }
 
+    public IBinder getBinder() {
+        if (mBinder == null) {
+            // create a dummy binder. We only need it be not null.
+            mBinder = new IBinder() {
+                @Override
+                public String getInterfaceDescriptor() throws RemoteException {
+                    return null;
+                }
+
+                @Override
+                public boolean pingBinder() {
+                    return false;
+                }
+
+                @Override
+                public boolean isBinderAlive() {
+                    return false;
+                }
+
+                @Override
+                public IInterface queryLocalInterface(String descriptor) {
+                    return null;
+                }
+
+                @Override
+                public void dump(FileDescriptor fd, String[] args) throws RemoteException {
+
+                }
+
+                @Override
+                public void dumpAsync(FileDescriptor fd, String[] args) throws RemoteException {
+
+                }
+
+                @Override
+                public boolean transact(int code, Parcel data, Parcel reply, int flags)
+                        throws RemoteException {
+                    return false;
+                }
+
+                @Override
+                public void linkToDeath(DeathRecipient recipient, int flags)
+                        throws RemoteException {
+
+                }
+
+                @Override
+                public boolean unlinkToDeath(DeathRecipient recipient, int flags) {
+                    return false;
+                }
+            };
+        }
+        return mBinder;
+    }
+
     //------------ NOT OVERRIDEN --------------------
 
     @Override
diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java
index 27ab5ea..499bea4 100644
--- a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java
+++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java
@@ -174,6 +174,7 @@ public final class CreateInfo implements ICreateInfo {
         "android.view.Display#getWindowManager",
         "android.view.LayoutInflater#rInflate",
         "android.view.LayoutInflater#parseInclude",
+        "android.view.View#getWindowToken",
         "android.view.View#isInEditMode",
         "android.view.ViewRootImpl#isInTouchMode",
         "android.view.WindowManagerGlobal#getWindowManagerService",