Add drawerLockMode prop to DrawerLayoutAndroid

Closes #5270.

Author: andreasdri

Libraries/Components/DrawerAndroid/DrawerLayoutAndroid.android.js

@@ -28,6 +28,7 @@ var INNERVIEW_REF = 'innerView';
 var DrawerLayoutValidAttributes = {
   drawerWidth: true,
   drawerPosition: true,
+  drawerLockMode: true
 };
 
 var DRAWER_STATES = [
@@ -70,6 +71,7 @@ var DRAWER_STATES = [
 var DrawerLayoutAndroid = React.createClass({
   statics: {
     positions: DrawerConsts.DrawerPosition,
+    lockMode: DrawerConsts.DrawerLockMode
   },
 
   propTypes: {
@@ -95,6 +97,14 @@ var DrawerLayoutAndroid = React.createClass({
      * from the edge of the window.
      */
     drawerWidth: ReactPropTypes.number,
+    /**
+     * Specifies the lock mode of the drawer.
+     */
+    drawerLockMode: ReactPropTypes.oneOf([
+      DrawerConsts.DrawerLockMode.Unlocked,
+      DrawerConsts.DrawerLockMode.LockedClosed,
+      DrawerConsts.DrawerLockMode.LockedOpen
+    ]),
     /**
      * Function called whenever there is an interaction with the navigation view.
      */
@@ -142,6 +152,7 @@ var DrawerLayoutAndroid = React.createClass({
         ref={RK_DRAWER_REF}
         drawerWidth={this.props.drawerWidth}
         drawerPosition={this.props.drawerPosition}
+        drawerLockMode={this.props.drawerLockMode}
         style={styles.base}
         onDrawerSlide={this._onDrawerSlide}
         onDrawerOpen={this._onDrawerOpen}

ReactAndroid/src/main/java/com/facebook/react/views/drawer/ReactDrawerLayoutManager.java

@@ -76,6 +76,17 @@ public void getDrawerWidth(ReactDrawerLayout view, float width) {
     view.setDrawerWidth(widthInPx);
   }
 
+  @ReactProp(name = "drawerLockMode", defaultInt = DrawerLayout.LOCK_MODE_UNLOCKED)
+  public void setDrawerLockMode(ReactDrawerLayout view, int drawerLockMode) {
+    if (DrawerLayout.LOCK_MODE_UNLOCKED == drawerLockMode ||
+        DrawerLayout.LOCK_MODE_LOCKED_CLOSED == drawerLockMode ||
+        DrawerLayout.LOCK_MODE_LOCKED_OPEN == drawerLockMode) {
+      view.setDrawerLockMode(drawerLockMode);
+    } else {
+      throw new JSApplicationIllegalArgumentException("Unknown drawerLockMode " + drawerLockMode);
+    }
+  }
+
   @Override
   public boolean needsCustomLayoutForChildren() {
     // Return true, since DrawerLayout will lay out it's own children.
@@ -106,7 +117,12 @@ public void receiveCommand(
   public @Nullable Map getExportedViewConstants() {
     return MapBuilder.of(
         "DrawerPosition",
-        MapBuilder.of("Left", Gravity.START, "Right", Gravity.END));
+        MapBuilder.of("Left", Gravity.START, "Right", Gravity.END),
+        "DrawerLockMode",
+        MapBuilder.of(
+          "Unlocked", DrawerLayout.LOCK_MODE_UNLOCKED,
+          "LockedClosed", DrawerLayout.LOCK_MODE_LOCKED_CLOSED,
+          "LockedOpen", DrawerLayout.LOCK_MODE_LOCKED_OPEN));
   }
 
   @Override