android: force screen to render - add access to LayerClient

Change-Id: Ia65eebd153251985fe736e8f278d46b22a06ec83

android/experimental/LOAndroid3/src/java/org/libreoffice/LOKitThread.java

@@ -34,20 +34,19 @@ public class LOKitThread extends Thread implements TileProvider.TileInvalidation
             composedTileLayer.addTile(tile);
             mLayerClient.endDrawing(mViewportMetrics);
             if (forceRedraw) {
-                Log.i(LOGTAG, "Redrawing tile " + tileId);
-                mLayerClient.forceRedraw();
+                mLayerClient.forceRender();
             }
         }
     }
 
     private void tileRerender(ComposedTileLayer composedTileLayer, SubTile tile) {
-        if (composedTileLayer.isStillValid(tile.id)) {
+        if (composedTileLayer.isStillValid(tile.id) && !tile.markedForRemoval) {
+            Log.i(LOGTAG, "Redrawing tile " + tile.id);
             mLayerClient.beginDrawing();
             mTileProvider.rerenderTile(tile.getImage(), tile.id.x, tile.id.y, tile.id.size, tile.id.zoom);
             tile.invalidate();
-            Log.i(LOGTAG, "Redrawing tile " + tile.id);
-            mLayerClient.forceRedraw();
             mLayerClient.endDrawing(mViewportMetrics);
+            mLayerClient.forceRender();
         }
     }
 

android/experimental/LOAndroid3/src/java/org/mozilla/gecko/gfx/GeckoLayerClient.java

@@ -397,6 +397,14 @@ public class GeckoLayerClient implements PanZoomTarget, LayerView.Listener {
         }
     }
 
+    public void forceRender() {
+        post(new Runnable() {
+            public void run() {
+                mView.requestRender();
+            }
+        });
+    }
+
     /** Implementation of PanZoomTarget */
     public boolean post(Runnable action) {
         return mView.post(action);

android/experimental/LOAndroid3/src/java/org/mozilla/gecko/gfx/TileLayer.java

@@ -73,7 +73,6 @@ public abstract class TileLayer extends Layer {
      * Invalidates the entire buffer so that it will be uploaded again. Only valid inside a
      * transaction.
      */
-
     public void invalidate() {
         if (!inTransaction())
             throw new RuntimeException("invalidate() is only valid inside a transaction");