add support for hierarchical log entries

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/results/OperationResult.java

@@ -106,7 +106,7 @@ public abstract class OperationResult implements Parcelable {
             mType = type;
             mParameters = parameters;
             mIndent = indent;
-            Log.v(Constants.TAG, "log: " + this.toString());
+            Log.v(Constants.TAG, "log: " + this);
         }
 
         public LogEntryParcel(Parcel source) {
@@ -122,6 +122,7 @@ public abstract class OperationResult implements Parcelable {
 
         @Override
         public void writeToParcel(Parcel dest, int flags) {
+            dest.writeInt(0);
             dest.writeInt(mType.ordinal());
             dest.writeSerializable(mParameters);
             dest.writeInt(mIndent);
@@ -129,7 +130,12 @@ public abstract class OperationResult implements Parcelable {
 
         public static final Creator<LogEntryParcel> CREATOR = new Creator<LogEntryParcel>() {
             public LogEntryParcel createFromParcel(final Parcel source) {
+                // Actually create LogEntryParcel or SubLogEntryParcel depending on type indicator
+                if (source.readInt() == 0) {
                     return new LogEntryParcel(source);
+                } else {
+                    return new SubLogEntryParcel(source);
+                }
             }
 
             public LogEntryParcel[] newArray(final int size) {
@@ -139,7 +145,7 @@ public abstract class OperationResult implements Parcelable {
 
         @Override
         public String toString() {
-            return "LogEntryParcel{" +
+            return getClass().getSimpleName() + "{" +
                     "mLevel=" + mType.mLevel +
                     ", mType=" + mType +
                     ", mParameters=" + Arrays.toString(mParameters) +
@@ -148,6 +154,42 @@ public abstract class OperationResult implements Parcelable {
         }
     }
 
+    public static class SubLogEntryParcel extends LogEntryParcel {
+
+        OperationResult mSubResult;
+
+        public SubLogEntryParcel(OperationResult subResult, LogType type, int indent, Object... parameters) {
+            super(type, indent, parameters);
+            mSubResult = subResult;
+
+            Log.v(Constants.TAG, "log: " + this);
+        }
+
+        public SubLogEntryParcel(Parcel source) {
+            super(source);
+            mSubResult = source.readParcelable(SubLogEntryParcel.class.getClassLoader());
+        }
+
+        public OperationResult getSubResult() {
+            return mSubResult;
+        }
+
+        @Override
+        public int describeContents() {
+            return 0;
+        }
+
+        @Override
+        public void writeToParcel(Parcel dest, int flags) {
+            dest.writeInt(1);
+            dest.writeInt(mType.ordinal());
+            dest.writeSerializable(mParameters);
+            dest.writeInt(mIndent);
+            dest.writeParcelable(mSubResult, 0);
+        }
+
+    }
+
     public SuperCardToast createNotify(final Activity activity) {
 
         int color;
@@ -597,6 +639,15 @@ public abstract class OperationResult implements Parcelable {
             mParcels.add(new OperationResult.LogEntryParcel(type, indent, (Object[]) null));
         }
 
+        public void add(OperationResult subResult, int indent) {
+            OperationLog subLog = subResult.getLog();
+            mParcels.add(new SubLogEntryParcel(subResult, subLog.getLast().mType, indent, subLog.getLast().mParameters));
+        }
+
+        public void clear() {
+            mParcels.clear();
+        }
+
         public boolean containsType(LogType type) {
             for(LogEntryParcel entry : new IterableIterator<LogEntryParcel>(mParcels.iterator())) {
                 if (entry.mType == type) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/LogDisplayFragment.java

@@ -31,6 +31,8 @@ import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnTouchListener;
 import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.ImageView;
 import android.widget.TextView;
@@ -40,11 +42,12 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.service.results.OperationResult;
 import org.sufficientlysecure.keychain.service.results.OperationResult.LogEntryParcel;
 import org.sufficientlysecure.keychain.service.results.OperationResult.LogLevel;
+import org.sufficientlysecure.keychain.service.results.OperationResult.SubLogEntryParcel;
 import org.sufficientlysecure.keychain.util.Log;
 
 import java.util.HashMap;
 
-public class LogDisplayFragment extends ListFragment implements OnTouchListener {
+public class LogDisplayFragment extends ListFragment implements OnTouchListener, OnItemClickListener {
 
     HashMap<LogLevel,LogAdapter> mAdapters = new HashMap<LogLevel, LogAdapter>();
     LogAdapter mAdapter;
@@ -89,6 +92,8 @@ public class LogDisplayFragment extends ListFragment implements OnTouchListener
             }
         });
 
+        getListView().setOnItemClickListener(this);
+
         getListView().setFastScrollEnabled(true);
         getListView().setDividerHeight(0);
         getListView().setOnTouchListener(this);
@@ -126,6 +131,18 @@ public class LogDisplayFragment extends ListFragment implements OnTouchListener
         return false;
     }
 
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        LogEntryParcel parcel = mAdapter.getItem(position);
+        if ( ! (parcel instanceof SubLogEntryParcel)) {
+            return;
+        }
+        Intent intent = new Intent(
+                getActivity(), LogDisplayActivity.class);
+        intent.putExtra(LogDisplayFragment.EXTRA_RESULT, ((SubLogEntryParcel) parcel).getSubResult());
+        startActivity(intent);
+    }
+
     private class LogAdapter extends ArrayAdapter<LogEntryParcel> {
 
         private LayoutInflater mInflater;
@@ -147,10 +164,11 @@ public class LogDisplayFragment extends ListFragment implements OnTouchListener
 
         private class ItemHolder {
             final TextView mText;
-            final ImageView mImg;
+            final ImageView mImg, mSub;
-            public ItemHolder(TextView text, ImageView image) {
+            public ItemHolder(TextView text, ImageView image, ImageView sub) {
                 mText = text;
                 mImg = image;
+                mSub = sub;
             }
         }
 
@@ -162,13 +180,22 @@ public class LogDisplayFragment extends ListFragment implements OnTouchListener
                 convertView = mInflater.inflate(R.layout.log_display_item, parent, false);
                 ih = new ItemHolder(
                         (TextView) convertView.findViewById(R.id.log_text),
-                        (ImageView) convertView.findViewById(R.id.log_img)
+                        (ImageView) convertView.findViewById(R.id.log_img),
+                        (ImageView) convertView.findViewById(R.id.log_sub)
                 );
                 convertView.setTag(ih);
             } else {
                 ih = (ItemHolder) convertView.getTag();
             }
 
+            if (entry instanceof SubLogEntryParcel) {
+                ih.mSub.setVisibility(View.VISIBLE);
+                convertView.setClickable(false);
+            } else {
+                ih.mSub.setVisibility(View.GONE);
+                convertView.setClickable(true);
+            }
+
             // special case: first parameter may be a quantity
             if (entry.mParameters != null && entry.mParameters.length > 0
                     && entry.mParameters[0] instanceof Integer) {

OpenKeychain/src/main/res/layout/log_display_item.xml

@@ -2,7 +2,7 @@
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="horizontal" android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="wrap_content">
 
     <ImageView
         android:layout_width="wrap_content"
@@ -12,11 +12,26 @@
         android:background="@color/bg_gray" />
 
     <TextView
-        android:layout_width="wrap_content"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:text="Log Entry Text"
         android:id="@+id/log_text"
         android:layout_marginTop="4dp"
         android:layout_marginBottom="4dp"
-        android:layout_marginLeft="8dp" />
+        android:layout_marginLeft="8dp"
+        android:layout_weight="1"
+        android:layout_gravity="center_vertical"/>
+
+    <ImageView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:id="@+id/log_sub"
+        android:minWidth="10dp"
+        android:background="@drawable/ic_action_view_as_list"
+        android:layout_marginTop="8dp"
+        android:layout_marginBottom="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp"
+        android:gravity="center_vertical" />
+
 </LinearLayout>