add new uri base update method

Author: Reza Amuzadeh

MagicalPEC/src/main/java/ir/vasl/magicalpec/utils/Core/MagicalPdfCore.java

@@ -122,6 +122,10 @@ public boolean addOCG(PointF pointF, String filePath, int currPage, String refer
         }
     }
 
+    public boolean addOCG(Context context, PointF pointF, Uri uri, int currPage, String referenceHash, byte[] OCGCover) throws MagicalException {
+        return addOCG(context, pointF, uri, currPage, referenceHash, OCGCover);
+    }
+
     public boolean addOCG(Context context, PointF pointF, Uri uri, int currPage, String referenceHash, byte[] OCGCover, float OCGWidth, float OCGHeight) throws MagicalException {
 
         // Hint: OCG -> optional content group
@@ -303,4 +307,19 @@ public boolean updateOCG(PointF pointF, String filePath, int currPage, String re
 
     }
 
+    public boolean updateOCG(Context context, PointF pointF, Uri uri, int currPage, String referenceHash, byte[] newOCGCover) throws MagicalException {
+
+        // remove old OCG
+        if (!removeOCG(context, uri, referenceHash))
+            throw new MagicalException("Cannot remove OCG with target reference");
+
+        // add new OCG
+        if (!addOCG(context, pointF, uri, currPage, referenceHash, newOCGCover))
+            throw new MagicalException("Cannot add new OCG with target reference");
+
+        // finish method
+        return true;
+
+    }
+
 }

MagicalPEC/src/main/java/ir/vasl/magicalpec/viewModel/MagicalPECViewModel.java

@@ -113,6 +113,7 @@ public void run() {
     }
 
     public void removeAllOCGs() {
+        // under construction
     }
 
     public void updateOCG(PointF pointF, String filePath, int currPage, String referenceHash, byte[] newOCGCover) {
@@ -133,4 +134,22 @@ public void run() {
         });
     }
 
+    public void updateOCG(PointF pointF, Uri uri, int currPage, String referenceHash, byte[] newOCGCover) {
+        MagicalPECViewModel.this.pecCoreStatus.postValue(PECCoreStatusEnum.PROCESSING);
+
+        new Handler().post(new Runnable() {
+            @Override
+            public void run() {
+                // Code here will run in UI thread
+                try {
+                    MagicalPdfCore.getInstance().updateOCG(getApplication(), pointF, uri, currPage, referenceHash, newOCGCover);
+                    MagicalPECViewModel.this.pecCoreStatus.postValue(PECCoreStatusEnum.SUCCESS);
+                } catch (MagicalException e) {
+                    MagicalPECViewModel.this.pecCoreStatus.postValue(PECCoreStatusEnum.FAILED);
+                    e.printStackTrace();
+                }
+            }
+        });
+    }
+
 }