android: handle callbacks directly in InvalidationHandler

Change-Id: Ic4ceaadcf251f7257001f8043161ce15898d7239

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

@@ -14,9 +14,10 @@ import java.util.List;
 /**
  * Parses (interprets) and handles invalidation messages from LibreOffice.
  */
-public class InvalidationHandler {
+public class InvalidationHandler implements Document.MessageCallback {
     private static String LOGTAG = InvalidationHandler.class.getSimpleName();
 
+    private TileProvider mTileProvider;
     private TextCursorLayer mTextCursorLayer;
     private TextSelection mTextSelection;
     private OverlayState mState;
@@ -24,16 +25,25 @@ public class InvalidationHandler {
     public InvalidationHandler(LibreOfficeMainActivity mainActivity) {
         mTextCursorLayer = mainActivity.getTextCursorLayer();
         mTextSelection = mainActivity.getTextSelection();
+        mTileProvider = null;
         mState = OverlayState.NONE;
     }
 
+    public void setTileProvider(TileProvider tileProvider) {
+        mTileProvider = tileProvider;
+    }
+
     /**
-     * Processes invalidation message
+     * Processes callback message
      *
      * @param messageID - ID of the message
      * @param payload   - additional invalidation message payload
      */
-    public void processMessage(int messageID, String payload) {
+    @Override
+    public void messageRetrieved(int messageID, String payload) {
+        if (!LOKitShell.isEditingEnabled()) {
+            return;
+        }
         switch (messageID) {
             case Document.CALLBACK_INVALIDATE_TILES:
                 invalidateTiles(payload);
@@ -53,6 +63,15 @@ public class InvalidationHandler {
             case Document.CALLBACK_CURSOR_VISIBLE:
                 cursorVisibility(payload);
                 break;
+            case Document.CALLBACK_HYPERLINK_CLICKED:
+                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;
         }
     }
 

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

@@ -159,6 +159,7 @@ public class LOKitThread extends Thread {
 
         mInvalidationHandler = new InvalidationHandler(LibreOfficeMainActivity.mAppContext);
         mTileProvider = TileProviderFactory.create(mLayerClient, mInvalidationHandler, filename);
+        mInvalidationHandler.setTileProvider(mTileProvider);
 
         if (mTileProvider.isReady()) {
             LOKitShell.showProgressSpinner();

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

@@ -28,7 +28,7 @@ import java.nio.ByteBuffer;
 /**
  * LOKit implementation of TileProvider.
  */
-public class LOKitTileProvider implements TileProvider, Document.MessageCallback {
+public class LOKitTileProvider implements TileProvider {
     private static final String LOGTAG = LOKitTileProvider.class.getSimpleName();
     private static int TILE_SIZE = 256;
     private final GeckoLayerClient mLayerClient;
@@ -43,13 +43,13 @@ public class LOKitTileProvider implements TileProvider, Document.MessageCallback
     private float mWidthTwip;
     private float mHeightTwip;
 
-    private InvalidationHandler mInvalidationHandler;
+    private Document.MessageCallback mMessageCallback;
 
     private long objectCreationTime = System.currentTimeMillis();
 
-    public LOKitTileProvider(GeckoLayerClient layerClient, InvalidationHandler invalidationHandler, String input) {
+    public LOKitTileProvider(GeckoLayerClient layerClient, Document.MessageCallback messageCallback, String input) {
         mLayerClient = layerClient;
-        mInvalidationHandler = invalidationHandler;
+        mMessageCallback = messageCallback;
         mDPI = (float) LOKitShell.getDpi();
         mTileWidth = pixelToTwip(TILE_SIZE, mDPI);
         mTileHeight = pixelToTwip(TILE_SIZE, mDPI);
@@ -89,7 +89,7 @@ public class LOKitTileProvider implements TileProvider, Document.MessageCallback
     }
 
     public void postLoad() {
-        mDocument.setMessageCallback(this);
+        mDocument.setMessageCallback(mMessageCallback);
 
         int parts = mDocument.getParts();
         Log.i(LOGTAG, "Document parts: " + parts);
@@ -407,32 +407,6 @@ public class LOKitTileProvider implements TileProvider, Document.MessageCallback
 
         return mDocument.getPart();
     }
-
-    /**
-     * Process the retrieved messages from LOK
-     */
-    @Override
-    public void messageRetrieved(int messageID, String payload) {
-        /**
-         * Handles messages that do not require entering editing mode.
-         */
-        switch (messageID) {
-            case Document.CALLBACK_HYPERLINK_CLICKED:
-                if (!payload.startsWith("http://") &&
-                        !payload.startsWith("https://"))
-                    payload = "http://" + payload;
-
-                Intent url_intent = new Intent(Intent.ACTION_VIEW);
-                url_intent.setData(Uri.parse(payload));
-                LibreOfficeMainActivity.mAppContext.startActivity(url_intent);
-                return;
-        }
-
-        if (!LOKitShell.isEditingEnabled()) {
-            return;
-        }
-        mInvalidationHandler.processMessage(messageID, payload);
-    }
 }
 
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