java part handles received statechange callback

android/Bootstrap/src/org/libreoffice/kit/Document.java

@@ -31,6 +31,15 @@ public class Document {
     public static final int MOUSE_BUTTON_UP = 1;
     public static final int MOUSE_MOVE = 2;
 
+
+    /**
+     * State change types
+     */
+    public static final int BOLD = 0;
+    public static final int ITALIC = 1;
+    public static final int UNDERLINE = 2;
+    public static final int STRIKEOUT = 3;
+
     /**
      * Callback message types
      */
@@ -42,6 +51,7 @@ public class Document {
     public static final int CALLBACK_CURSOR_VISIBLE = 5;
     public static final int CALLBACK_GRAPHIC_SELECTION = 6;
     public static final int CALLBACK_HYPERLINK_CLICKED = 7;
+    public static final int CALLBACK_STATE_CHANGED = 8;
 
     /**
      * Set text selection types

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

@@ -68,11 +68,24 @@ public class InvalidationHandler implements Document.MessageCallback {
                 if (!payload.startsWith("http://") && !payload.startsWith("https://")) {
                     payload = "http://" + payload;
                 }
-
                 Intent urlIntent = new Intent(Intent.ACTION_VIEW);
                 urlIntent.setData(Uri.parse(payload));
                 LibreOfficeMainActivity.mAppContext.startActivity(urlIntent);
                 break;
+            case Document.CALLBACK_STATE_CHANGED:
+                Log.d("Document.CALLBACK_STATE_CHANGED: " + payload);
+                String[] parts = payload.split(":");
+                boolean pressed = Boolean.parseBoolean(parts[1]);
+                if (parts[0].equals("Bold")) {
+                    LOKitShell.getToolbarController().onToggleStateChanged(Document.BOLD, pressed);
+                } else if (parts[0].equals("Italic")) {
+                    LOKitShell.getToolbarController().onToggleStateChanged(Document.ITALIC, pressed);
+                } else if (parts[0].equals("Underline")) {
+                    LOKitShell.getToolbarController().onToggleStateChanged(Document.UNDERLINE, pressed);
+                } else if (parts[0].equals("Strikeout")) {
+                    LOKitShell.getToolbarController().onToggleStateChanged(Document.STRIKEOUT, pressed);
+                }
+                break;
         }
     }
 

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

@@ -19,6 +19,7 @@ import android.widget.ListView;
 import android.widget.Toast;
 
 import org.libreoffice.overlay.DocumentOverlay;
+
 import org.mozilla.gecko.ZoomConstraints;
 import org.mozilla.gecko.gfx.GeckoLayerClient;
 import org.mozilla.gecko.gfx.LayerView;
@@ -69,6 +70,7 @@ public class LibreOfficeMainActivity extends ActionBarActivity {
     public boolean onCreateOptionsMenu(Menu menu) {
         // Inflate the menu; this adds items to the action bar if it is present.
         getMenuInflater().inflate(R.menu.main, menu);
+        mToolbarController.setOptionMenu(menu);
         return super.onCreateOptionsMenu(menu);
     }
 
@@ -141,7 +143,7 @@ public class LibreOfficeMainActivity extends ActionBarActivity {
 
         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
-        mToolbarController = new ToolbarController(getSupportActionBar(), toolbar);
+        mToolbarController = new ToolbarController(this, getSupportActionBar(), toolbar);
 
         toolbar.setNavigationOnClickListener(new View.OnClickListener() {
             @Override
@@ -176,6 +178,8 @@ public class LibreOfficeMainActivity extends ActionBarActivity {
 
         // create TextCursorLayer
         mDocumentOverlay = new DocumentOverlay(mAppContext, layerView);
+
+
     }
 
     private boolean copyFileToTemp() {

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

@@ -8,22 +8,77 @@
  */
 package org.libreoffice;
 
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.drawable.BitmapDrawable;
 import android.support.v7.app.ActionBar;
 import android.support.v7.widget.Toolbar;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+
+import org.libreoffice.canvas.ImageUtils;
+import org.libreoffice.kit.Document;
 
 /**
  * Controls the changes to the toolbar.
  */
 public class ToolbarController {
+    private static final String LOGTAG = ToolbarController.class.getSimpleName();
     private final Toolbar mToolbar;
     private final ActionBar mActionBar;
+    private Menu mOptionsMenu;
+    private Context mContext;
 
-    public ToolbarController(ActionBar actionBar, Toolbar toolbar) {
+    public ToolbarController(Context context, ActionBar actionBar, Toolbar toolbar) {
         mToolbar = toolbar;
         mActionBar = actionBar;
+        mContext = context;
         switchToViewMode();
     }
 
+    public void onToggleStateChanged(int type, boolean pressed) {
+        MenuItem menuItem = null;
+        Bitmap icon = null;
+        switch (type) {
+            case Document.BOLD:
+                menuItem = mOptionsMenu.findItem(R.id.action_bold);
+                icon = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.action_bold);
+                break;
+            case Document.ITALIC:
+                menuItem = mOptionsMenu.findItem(R.id.action_italic);
+                icon = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.action_italic);
+                break;
+            case Document.UNDERLINE:
+                menuItem = mOptionsMenu.findItem(R.id.action_underline);
+                icon = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.action_underline);
+                break;
+            case Document.STRIKEOUT:
+                menuItem = mOptionsMenu.findItem(R.id.action_strikeout);
+                icon = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.action_strikeout);
+                break;
+            default:
+                Log.e(LOGTAG, "Uncaptured state change type: " + type);
+                return;
+        }
+
+        if (menuItem == null) {
+            Log.e(LOGTAG, "MenuItem not found.");
+            return;
+        }
+
+        if (pressed) {
+            icon = ImageUtils.bitmapToPressed(icon);
+        }
+
+        menuItem.setIcon(new BitmapDrawable(mContext.getResources(), icon));
+    }
+
+    public void setOptionMenu(Menu menu) {
+        mOptionsMenu = menu;
+    }
+
     /**
      * Change the toolbar to edit mode.
      */

android/experimental/LOAndroid3/src/java/org/libreoffice/canvas/ImageUtils.java

+package org.libreoffice.canvas;
+
+import android.graphics.Bitmap;
+import android.graphics.Color;
+
+public class ImageUtils {
+    /**
+     * Convert transparent pixels to gray ones.
+     */
+    public static Bitmap bitmapToPressed(Bitmap input) {
+        Bitmap op = Bitmap.createBitmap(input.getWidth(), input.getHeight(), input.getConfig());
+        for(int i=0; i<op.getWidth(); i++){
+            for(int j=0; j<op.getHeight(); j++){
+                int p = input.getPixel(i, j);
+                // assign gray color if the pixel in input is transparent.
+                int newColor = Color.alpha(p) == 0 ? Color.argb(255, 200, 200, 200) : p;
+                op.setPixel(i, j, newColor);
+            }
+        }
+
+        return op;
+    }
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */