Added Android code

[wl-app.git] / Android / folioreader / src / main / java / com / folioreader / util / HighlightUtil.java

diff --git a/Android/folioreader/src/main/java/com/folioreader/util/HighlightUtil.java b/Android/folioreader/src/main/java/com/folioreader/util/HighlightUtil.java
new file mode 100755 (executable)
index 0000000..7d36684
--- /dev/null
+++ b/Android/folioreader/src/main/java/com/folioreader/util/HighlightUtil.java
@@ -0,0 +1,130 @@
+package com.folioreader.util;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.content.LocalBroadcastManager;
+import android.util.Log;
+
+import com.folioreader.model.HighLight;
+import com.folioreader.model.HighlightImpl;
+import com.folioreader.model.sqlite.HighLightTable;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.List;
+
+/**
+ * Created by priyank on 5/12/16.
+ */
+public class HighlightUtil {
+
+    private static final String TAG = "HighlightUtil";
+
+    public static String createHighlightRangy(Context context,
+                                              String content,
+                                              String bookTitle,
+                                              String pageId,
+                                              int pageNo,
+                                              String oldRangy) {
+        try {
+            JSONObject jObject = new JSONObject(content);
+
+            String rangy = jObject.getString("rangy");
+            String textContent = jObject.getString("content");
+            String color = jObject.getString("color");
+
+            String rangyHighlightElement = getRangyString(rangy, oldRangy);
+
+            HighlightImpl highlightImpl = new HighlightImpl();
+            highlightImpl.setContent(textContent);
+            highlightImpl.setType(color);
+            highlightImpl.setPageNumber(pageNo);
+            highlightImpl.setBookId(bookTitle);
+            highlightImpl.setPageId(pageId);
+            highlightImpl.setRangy(rangyHighlightElement);
+            highlightImpl.setDate(Calendar.getInstance().getTime());
+            // save highlight to database
+            long id = HighLightTable.insertHighlight(highlightImpl);
+            if (id != -1) {
+                highlightImpl.setId((int) id);
+                sendHighlightBroadcastEvent(context, highlightImpl, HighLight.HighLightAction.NEW);
+            }
+            return rangy;
+        } catch (JSONException e) {
+            Log.e(TAG, "createHighlightRangy failed", e);
+        }
+        return "";
+    }
+
+    /**
+     * function extracts rangy element corresponding to latest highlight.
+     *
+     * @param rangy    new rangy string generated after adding new highlight.
+     * @param oldRangy rangy string before new highlight.
+     * @return rangy element corresponding to latest element.
+     */
+    private static String getRangyString(String rangy, String oldRangy) {
+        List<String> rangyList = getRangyArray(rangy);
+        for (String firs : getRangyArray(oldRangy)) {
+            if (rangyList.contains(firs)) {
+                rangyList.remove(firs);
+            }
+        }
+        if (rangyList.size() >= 1) {
+            return rangyList.get(0);
+        } else {
+            return "";
+        }
+    }
+
+    /**
+     * function converts Rangy text into each individual element
+     * splitting with '|'.
+     *
+     * @param rangy rangy test with format: type:textContent|start$end$id$class$containerId
+     * @return ArrayList of each rangy element corresponding to each highlight
+     */
+    private static List<String> getRangyArray(String rangy) {
+        List<String> rangyElementList = new ArrayList<>();
+        rangyElementList.addAll(Arrays.asList(rangy.split("\\|")));
+        if (rangyElementList.contains("type:textContent")) {
+            rangyElementList.remove("type:textContent");
+        } else if (rangyElementList.contains("")) {
+            return new ArrayList<>();
+        }
+        return rangyElementList;
+    }
+
+    public static String generateRangyString(String pageId) {
+        List<String> rangyList = HighLightTable.getHighlightsForPageId(pageId);
+        StringBuilder builder = new StringBuilder();
+        if (!rangyList.isEmpty()) {
+            builder.append("type:textContent");
+            for (String rangy : rangyList) {
+                builder.append('|');
+                builder.append(rangy);
+            }
+        }
+        return builder.toString();
+    }
+
+    public static void sendHighlightBroadcastEvent(Context context,
+                                                   HighlightImpl highlightImpl,
+                                                   HighLight.HighLightAction action) {
+        LocalBroadcastManager.getInstance(context).sendBroadcast(
+                getHighlightBroadcastIntent(highlightImpl, action));
+    }
+
+    public static Intent getHighlightBroadcastIntent(HighlightImpl highlightImpl,
+                                                     HighLight.HighLightAction modify) {
+        Bundle bundle = new Bundle();
+        bundle.putParcelable(HighlightImpl.INTENT, highlightImpl);
+        bundle.putSerializable(HighLight.HighLightAction.class.getName(), modify);
+        return new Intent(HighlightImpl.BROADCAST_EVENT).putExtras(bundle);
+    }
+}