android: Add logic to change document parts from sidebar

Add click listener for list elements (parts) in "drawer layout"
side bar, add new LOEvent - change parts, propagate the change event
up to TileProvider, call setPart on LOK facade, clean all tiles and
redraw.

Change-Id: I711e0fb5e7e867cef87f97b96f1292d7c6801083

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

@@ -2,13 +2,19 @@ package org.libreoffice;
 
 
 public class DocumentPartView {
-    private String partName;
+    private final int partIndex;
+    private final String partName;
 
-    public DocumentPartView(String partName) {
+    public DocumentPartView(int partIndex, String partName) {
+        this.partIndex = partIndex;
         this.partName = partName;
     }
 
     public String getPartName() {
         return partName;
     }
+
+    public int getPartIndex() {
+        return partIndex;
+    }
 }

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

@@ -11,17 +11,16 @@ public class LOEvent {
     public static final int TILE_SIZE = 2;
     public static final int VIEWPORT = 3;
     public static final int DRAW = 4;
-
-    private ViewportMetrics mViewportMetrics;
-
+    public static final int CHANGE_PART = 5;
     public int mType;
-    private String mTypeString;
-
     ViewportMetrics viewportMetrics;
+    private ViewportMetrics mViewportMetrics;
+    private String mTypeString;
+    private int mPartIndex;
 
     public LOEvent(int type, int widthPixels, int heightPixels, int tileWidth, int tileHeight) {
         mType = type;
-        mTypeString = "Size Changed: " + widthPixels + " "+ heightPixels;
+        mTypeString = "Size Changed: " + widthPixels + " " + heightPixels;
     }
 
     public LOEvent(int type, IntSize tileSize) {
@@ -40,6 +39,12 @@ public class LOEvent {
         mTypeString = "Draw";
     }
 
+    public LOEvent(int type, int partIndex) {
+        mType = type;
+        mPartIndex = partIndex;
+        mTypeString = "Change part";
+    }
+
     public static LOEvent draw(Rect rect) {
         return new LOEvent(DRAW, rect);
     }
@@ -56,6 +61,10 @@ public class LOEvent {
         return new LOEvent(VIEWPORT, viewportMetrics);
     }
 
+    public static LOEvent changePart(int part) {
+        return new LOEvent(CHANGE_PART, part);
+    }
+
     public String getTypeString() {
         return mTypeString;
     }
@@ -63,4 +72,8 @@ public class LOEvent {
     public ViewportMetrics getViewport() {
         return mViewportMetrics;
     }
+
+    public int getPartIndex() {
+        return mPartIndex;
+    }
 }

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

@@ -115,6 +115,13 @@ public class LOKitThread extends Thread {
         return true;
     }
 
+    private void changePart(int partIndex) throws InterruptedException {
+        mTileProvider.changePart(partIndex);
+        GeckoLayerClient layerClient = mApplication.getLayerClient();
+        layerClient.getTiles().clear();
+        LOKitShell.sendEvent(LOEvent.draw(new Rect()));
+    }
+
     private boolean initialize() {
         mApplication = LibreOfficeMainActivity.mAppContext;
         mTileProvider = new LOKitTileProvider(mApplication.getLayerController(), mInputFile);
@@ -144,6 +151,9 @@ public class LOKitThread extends Thread {
                 break;
             case LOEvent.SIZE_CHANGED:
                 break;
+            case LOEvent.CHANGE_PART:
+                changePart(event.getPartIndex());
+                break;
         }
     }
 

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

@@ -15,27 +15,14 @@ import java.nio.ByteBuffer;
 
 public class LOKitTileProvider implements TileProvider {
     private static final String LOGTAG = LOKitTileProvider.class.getSimpleName();
-
-    private final LayerController mLayerController;
-
     public static int TILE_SIZE = 256;
-    private final double mTileWidth;
-    private final double mTileHeight;
-
-
     public final Office mOffice;
     public final Document mDocument;
-
+    private final LayerController mLayerController;
+    private final double mTileWidth;
+    private final double mTileHeight;
     private double mDPI;
 
-    private double twipToPixel(double input, double dpi) {
-        return input / 1440.0 * dpi;
-    }
-
-    private double pixelToTwip(double input, double dpi) {
-        return (input / dpi) * 1440.0;
-    }
-
     public LOKitTileProvider(LayerController layerController, String input) {
         mLayerController = layerController;
         mDPI = (double) LOKitShell.getDpi();
@@ -61,7 +48,7 @@ public class LOKitTileProvider implements TileProvider {
                     partName = "Part " + (i + 1);
                 }
                 Log.i(LOGTAG, "Document part " + i + " name:'" + partName + "'");
-                final DocumentPartView partView = new DocumentPartView(partName);
+                final DocumentPartView partView = new DocumentPartView(i, partName);
                 LibreOfficeMainActivity.mAppContext.getDocumentPartView().add(partView);
             }
 
@@ -74,8 +61,16 @@ public class LOKitTileProvider implements TileProvider {
         }
     }
 
+    private double twipToPixel(double input, double dpi) {
+        return input / 1440.0 * dpi;
+    }
+
+    private double pixelToTwip(double input, double dpi) {
+        return (input / dpi) * 1440.0;
+    }
+
     private boolean checkDocument() {
-        if(mDocument == null || !mOffice.getError().isEmpty()) {
+        if (mDocument == null || !mOffice.getError().isEmpty()) {
             Log.e(LOGTAG, "Error at loading: " + mOffice.getError());
             return false;
         }
@@ -108,7 +103,7 @@ public class LOKitTileProvider implements TileProvider {
         ByteBuffer buffer = ByteBuffer.allocateDirect(TILE_SIZE * TILE_SIZE * 4);
         Bitmap bitmap = Bitmap.createBitmap(TILE_SIZE, TILE_SIZE, Bitmap.Config.ARGB_8888);
 
-        mDocument.paintTile(buffer, TILE_SIZE, TILE_SIZE, (int) pixelToTwip(x, mDPI), (int) pixelToTwip(y, mDPI), (int)mTileWidth, (int)mTileHeight);
+        mDocument.paintTile(buffer, TILE_SIZE, TILE_SIZE, (int) pixelToTwip(x, mDPI), (int) pixelToTwip(y, mDPI), (int) mTileWidth, (int) mTileHeight);
 
         bitmap.copyPixelsFromBuffer(buffer);
 
@@ -117,4 +112,9 @@ public class LOKitTileProvider implements TileProvider {
         tile.beginTransaction();
         return tile;
     }
+
+    @Override
+    public void changePart(int partIndex) {
+        mDocument.setPart(partIndex);
+    }
 }

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

@@ -8,6 +8,8 @@ import android.util.DisplayMetrics;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
 import android.widget.ListView;
 import android.widget.RelativeLayout;
 
@@ -104,6 +106,7 @@ public class LibreOfficeMainActivity extends Activity {
 
         mDocumentPartViewListAdpater = new DocumentPartViewListAdpater(this, R.layout.document_part_list_layout, mDocumentPartView);
         mDrawerList.setAdapter(mDocumentPartViewListAdpater);
+        mDrawerList.setOnItemClickListener(new DocumentPartClickListener());
 
         if (mLayerController == null) {
             mLayerController = new LayerController(this);
@@ -122,6 +125,15 @@ public class LibreOfficeMainActivity extends Activity {
         Log.w(LOGTAG, "UI almost up");
     }
 
+    private class DocumentPartClickListener implements android.widget.AdapterView.OnItemClickListener {
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            DocumentPartView partView = mDocumentPartViewListAdpater.getItem(position);
+            LOKitShell.sendEvent(LOEvent.changePart(partView.getPartIndex()));
+            mDrawerLayout.closeDrawer(mDrawerList);
+        }
+    }
+
     @Override
     protected void onResume() {
         super.onResume();

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

@@ -18,7 +18,7 @@ public class MockTileProvider implements TileProvider {
 
         for (int i = 0; i < 5; i++) {
             String partName = "Part " + i;
-            DocumentPartView partView = new DocumentPartView(partName);
+            DocumentPartView partView = new DocumentPartView(i, partName);
             LibreOfficeMainActivity.mAppContext.getDocumentPartViewListAdpater().add(partView);
         }
         LibreOfficeMainActivity.mAppContext.mMainHandler.post(new Runnable() {
@@ -60,4 +60,9 @@ public class MockTileProvider implements TileProvider {
 
         return tile;
     }
+
+    @Override
+    public void changePart(int partIndex) {
+
+    }
 }

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

@@ -10,4 +10,6 @@ public interface TileProvider {
     boolean isReady();
 
     SubTile createTile(int x, int y);
+
+    void changePart(int partIndex);
 }