tdf#87098 don't adjust zoom/position for spreadsheets

Change-Id: Ieb908980a931b123e2c48fe3ecdc7830b48810ed

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

@@ -63,16 +63,27 @@ public class LOKitThread extends Thread implements TileProvider.TileInvalidation
         mViewportMetrics = mLayerClient.getViewportMetrics();
         mLayerClient.setViewportMetrics(mViewportMetrics);
 
-        if (mTileProvider.isTextDocument()) {
+        zoomAndRepositionTheDocument();
+
+        mLayerClient.forceRedraw();
+    }
+
+    private void zoomAndRepositionTheDocument() {
+        if (mTileProvider.isSpreadsheet()) {
+            // Don't do anything for spreadsheets - show at 100%
+        } else if (mTileProvider.isTextDocument()) {
+            // Always zoom text document to the beginning of the document and centered by width
             float centerY = mViewportMetrics.getCssViewport().centerY();
-            mLayerClient.zoomTo(new RectF (0, centerY, mTileProvider.getPageWidth(), centerY));
-        } else if (mViewportMetrics.getViewport().width() < mViewportMetrics.getViewport().height()) {
+            mLayerClient.zoomTo(new RectF(0, centerY, mTileProvider.getPageWidth(), centerY));
+        } else {
+            // Other documents - always show the whole document on the screen,
+            // regardless of document shape and orientation.
+            if (mViewportMetrics.getViewport().width() < mViewportMetrics.getViewport().height()) {
                 mLayerClient.zoomTo(mTileProvider.getPageWidth(), 0);
             } else {
                 mLayerClient.zoomTo(0, mTileProvider.getPageHeight());
             }
-
-        mLayerClient.forceRedraw();
+        }
     }
 
     /** Invalidate everything + handle the geometry change */

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

@@ -270,6 +270,11 @@ public class LOKitTileProvider implements TileProvider, Document.MessageCallback
         return mDocument != null && mDocument.getDocumentType() == Document.DOCTYPE_TEXT;
     }
 
+    @Override
+    public boolean isSpreadsheet() {
+        return mDocument != null && mDocument.getDocumentType() == Document.DOCTYPE_SPREADSHEET;
+    }
+
     /**
      * Register the tile invalidation callback.
      */

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

@@ -84,6 +84,11 @@ public class MockTileProvider implements TileProvider {
         return true;
     }
 
+    @Override
+    public boolean isSpreadsheet() {
+        return false;
+    }
+
     @Override
     public void registerInvalidationCallback(TileInvalidationCallback tileInvalidationCallback) {
     }

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

@@ -53,6 +53,11 @@ public interface TileProvider {
      */
     boolean isTextDocument();
 
+    /**
+     * Returns true if the current open document is a spreadsheet.
+     */
+    boolean isSpreadsheet();
+
     /**
      * Register a callback that is invoked when a tile invalidation is
      * required.