#81: Android: Display dublincore metadata

docs-android/app/src/main/java/com/sismics/docs/activity/DocumentViewActivity.java

@@ -16,6 +16,7 @@ import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.text.TextUtils;
 import android.text.format.DateFormat;
+import android.text.method.LinkMovementMethod;
 import android.view.ContextMenu;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -51,7 +52,7 @@ import com.sismics.docs.resource.FileResource;
 import com.sismics.docs.service.FileUploadService;
 import com.sismics.docs.util.NetworkUtil;
 import com.sismics.docs.util.PreferenceUtil;
-import com.sismics.docs.util.TagUtil;
+import com.sismics.docs.util.SpannableUtil;
 
 import org.greenrobot.eventbus.EventBus;
 import org.greenrobot.eventbus.Subscribe;
@@ -176,9 +177,11 @@ public class DocumentViewActivity extends AppCompatActivity {
         }
 
         // Fill the layout
+        // Create date
         TextView createdDateTextView = (TextView) findViewById(R.id.createdDateTextView);
         createdDateTextView.setText(date);
 
+        // Description
         TextView descriptionTextView = (TextView) findViewById(R.id.descriptionTextView);
         if (description.isEmpty() || document.isNull("description")) {
             descriptionTextView.setVisibility(View.GONE);
@@ -187,17 +190,20 @@ public class DocumentViewActivity extends AppCompatActivity {
             descriptionTextView.setText(description);
         }
 
+        // Tags
         TextView tagTextView = (TextView) findViewById(R.id.tagTextView);
         if (tags.length() == 0) {
             tagTextView.setVisibility(View.GONE);
         } else {
             tagTextView.setVisibility(View.VISIBLE);
-            tagTextView.setText(TagUtil.buildSpannable(tags));
+            tagTextView.setText(SpannableUtil.buildSpannableTags(tags));
         }
 
+        // Language
         ImageView languageImageView = (ImageView) findViewById(R.id.languageImageView);
         languageImageView.setImageResource(getResources().getIdentifier(language, "drawable", getPackageName()));
 
+        // Shared status
         ImageView sharedImageView = (ImageView) findViewById(R.id.sharedImageView);
         sharedImageView.setVisibility(shared ? View.VISIBLE : View.GONE);
 
@@ -679,10 +685,54 @@ public class DocumentViewActivity extends AppCompatActivity {
                         startActivity(intent);
                     }
                 });
+
+                // Contributors
+                TextView contributorsTextView = (TextView) findViewById(R.id.contributorsTextView);
+                contributorsTextView.setText(SpannableUtil.buildSpannableContributors(document.optJSONArray("contributors")));
+
+                // Relations
+                JSONArray relations = document.optJSONArray("relations");
+                if (relations.length() > 0) {
+                    TextView relationsTextView = (TextView) findViewById(R.id.relationsTextView);
+                    relationsTextView.setMovementMethod(LinkMovementMethod.getInstance());
+                    relationsTextView.setText(SpannableUtil.buildSpannableRelations(relations));
+                } else {
+                    findViewById(R.id.relationsLayout).setVisibility(View.GONE);
+                }
+
+                // Additional dublincore metadata
+                displayDublincoreMetadata(R.id.subjectTextView, R.id.subjectLayout, "subject");
+                displayDublincoreMetadata(R.id.identifierTextView, R.id.identifierLayout, "identifier");
+                displayDublincoreMetadata(R.id.publisherTextView, R.id.publisherLayout, "publisher");
+                displayDublincoreMetadata(R.id.formatTextView, R.id.formatLayout, "format");
+                displayDublincoreMetadata(R.id.sourceTextView, R.id.sourceLayout, "source");
+                displayDublincoreMetadata(R.id.typeTextView, R.id.typeLayout, "type");
+                displayDublincoreMetadata(R.id.coverageTextView, R.id.coverageLayout, "coverage");
+                displayDublincoreMetadata(R.id.rightsTextView, R.id.rightsLayout, "rights");
             }
         });
     }
 
+    /**
+     * Display a dublincore metadata.
+     *
+     * @param textViewId TextView ID
+     * @param blockViewId View ID
+     * @param name Name
+     */
+    private void displayDublincoreMetadata(int textViewId, int blockViewId, String name) {
+        if (document == null) return;
+        String value = document.optString(name);
+        if (document.isNull(name) || value.isEmpty()) {
+            findViewById(blockViewId).setVisibility(View.GONE);
+            return;
+        }
+
+        findViewById(blockViewId).setVisibility(View.VISIBLE);
+        TextView textView = (TextView) findViewById(textViewId);
+        textView.setText(value);
+    }
+
     @Override
     public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
         switch (view.getId()) {

docs-android/app/src/main/java/com/sismics/docs/adapter/DocListAdapter.java

@@ -9,7 +9,7 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import com.sismics.docs.R;
-import com.sismics.docs.util.TagUtil;
+import com.sismics.docs.util.SpannableUtil;
 
 import org.json.JSONArray;
 import org.json.JSONObject;
@@ -69,7 +69,7 @@ public class DocListAdapter extends RecyclerView.Adapter<DocListAdapter.ViewHold
         holder.titleTextView.setText(document.optString("title"));
 
         JSONArray tags = document.optJSONArray("tags");
-        holder.subtitleTextView.setText(TagUtil.buildSpannable(tags));
+        holder.subtitleTextView.setText(SpannableUtil.buildSpannableTags(tags));
 
         String date = DateFormat.getDateFormat(holder.dateTextView.getContext()).format(new Date(document.optLong("create_date")));
         holder.dateTextView.setText(date);

docs-android/app/src/main/java/com/sismics/docs/ui/view/NonScrollListView.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.ui.view;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.ViewGroup;
+import android.widget.ListView;
+
+/**
+ * Non-scrollable ListView.
+ * All items are visible from the start.
+ *
+ * @author http://stackoverflow.com/questions/18813296/non-scrollable-listview-inside-scrollview/24629341#24629341
+ */
+public class NonScrollListView extends ListView {
+
+    public NonScrollListView(Context context) {
+        super(context);
+    }
+    public NonScrollListView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+    public NonScrollListView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+    @Override
+    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+            int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
+                    Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
+            ViewGroup.LayoutParams params = getLayoutParams();
+            params.height = getMeasuredHeight();    
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/SpannableUtil.java

@@ -0,0 +1,85 @@
+package com.sismics.docs.util;
+
+import android.graphics.Color;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.style.BackgroundColorSpan;
+import android.text.style.ForegroundColorSpan;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Utility class for tags.
+ *
+ * @author bgamard.
+ */
+public class SpannableUtil {
+    /**
+     * Create a colored spannable from tags.
+     *
+     * @param tags Tags
+     * @return Colored spannable
+     */
+    public static Spannable buildSpannableTags(JSONArray tags) {
+        return buildSpannable(tags, "name", "color");
+    }
+
+    /**
+     * Create a spannable for contributors.
+     *
+     * @param contributors Contributors
+     * @return Spannable
+     */
+    public static Spannable buildSpannableContributors(JSONArray contributors) {
+        return buildSpannable(contributors, "username", null);
+    }
+
+    /**
+     * Create a spannable for relations.
+     *
+     * @param relations Relations
+     * @return Spannable
+     */
+    public static Spannable buildSpannableRelations(JSONArray relations) {
+        return buildSpannable(relations, "title", null);
+    }
+
+    /**
+     * Create a spannable from a JSONArray.
+     *
+     * @param array JSONArray
+     * @param valueName Name of the value part
+     * @param colorName Name of the color part (optional)
+     * @return Spannable
+     */
+    private static Spannable buildSpannable(JSONArray array, String valueName, String colorName) {
+        SpannableStringBuilder builder = new SpannableStringBuilder();
+
+        for (int i = 0; i < array.length(); i++) {
+            final JSONObject tag = array.optJSONObject(i);
+            int start = builder.length();
+            builder.append(" ").append(tag.optString(valueName)).append(" ");
+            builder.setSpan(new ForegroundColorSpan(Color.WHITE), start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            builder.setSpan(new BackgroundColorSpan(Color.parseColor(tag.optString(colorName, "#5bc0de"))), start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            /*
+            TODO : Make tags, relations and contributors clickable
+            builder.setSpan(new ClickableSpan() {
+                @Override
+                public void onClick(View widget) {
+                }
+
+                @Override
+                public void updateDrawState(TextPaint ds) {
+                    super.updateDrawState(ds);
+                    ds.setColor(Color.WHITE);
+                    ds.setUnderlineText(false);
+                }
+            }, start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);*/
+            builder.append(" ");
+        }
+
+        return builder;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/TagUtil.java

@@ -1,39 +0,0 @@
-package com.sismics.docs.util;
-
-import android.graphics.Color;
-import android.text.Spannable;
-import android.text.SpannableStringBuilder;
-import android.text.Spanned;
-import android.text.style.BackgroundColorSpan;
-import android.text.style.ForegroundColorSpan;
-
-import org.json.JSONArray;
-import org.json.JSONObject;
-
-/**
- * Utility class for tags.
- *
- * @author bgamard.
- */
-public class TagUtil {
-    /**
-     * Create a colored spannable from tags.
-     *
-     * @param tags Tags
-     * @return Colored spannable
-     */
-    public static Spannable buildSpannable(JSONArray tags) {
-        SpannableStringBuilder builder = new SpannableStringBuilder();
-
-        for (int i = 0; i < tags.length(); i++) {
-            JSONObject tag = tags.optJSONObject(i);
-            int start = builder.length();
-            builder.append(" ").append(tag.optString("name")).append(" ");
-            builder.setSpan(new ForegroundColorSpan(Color.WHITE), start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
-            builder.setSpan(new BackgroundColorSpan(Color.parseColor(tag.optString("color"))), start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
-            builder.append(" ");
-        }
-
-        return builder;
-    }
-}