Added Android code

[wl-app.git] / Android / folioreader / src / main / java / com / folioreader / ui / tableofcontents / presenter / TableOfContentsPresenter.java

diff --git a/Android/folioreader/src/main/java/com/folioreader/ui/tableofcontents/presenter/TableOfContentsPresenter.java b/Android/folioreader/src/main/java/com/folioreader/ui/tableofcontents/presenter/TableOfContentsPresenter.java
new file mode 100755 (executable)
index 0000000..c7a2ee1
--- /dev/null
+++ b/Android/folioreader/src/main/java/com/folioreader/ui/tableofcontents/presenter/TableOfContentsPresenter.java
@@ -0,0 +1,85 @@
+package com.folioreader.ui.tableofcontents.presenter;
+
+import com.folioreader.model.TOCLinkWrapper;
+import com.folioreader.ui.base.ManifestCallBack;
+import com.folioreader.ui.base.ManifestTask;
+
+import org.readium.r2_streamer.model.publication.EpubPublication;
+import org.readium.r2_streamer.model.publication.link.Link;
+import org.readium.r2_streamer.model.tableofcontents.TOCLink;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author gautam chibde on 8/6/17.
+ */
+
+public class TableOfContentsPresenter implements ManifestCallBack {
+
+    private TOCMvpView tocMvpView;
+
+    public TableOfContentsPresenter(TOCMvpView tocMvpView) {
+        this.tocMvpView = tocMvpView;
+    }
+
+    public void getTOCContent(String url) {
+        new ManifestTask(this).execute(url);
+    }
+
+    /**
+     * [RECURSIVE]
+     * <p>
+     * function generates list of {@link TOCLinkWrapper} of TOC list from publication manifest
+     *
+     * @param tocLink     table of content elements
+     * @param indentation level of hierarchy of the child elements
+     * @return generated {@link TOCLinkWrapper} list
+     */
+    private static TOCLinkWrapper createTocLinkWrapper(TOCLink tocLink, int indentation) {
+        TOCLinkWrapper tocLinkWrapper = new TOCLinkWrapper(tocLink, indentation);
+        if (tocLink.getTocLinks() != null && !tocLink.getTocLinks().isEmpty()) {
+            for (TOCLink tocLink1 : tocLink.getTocLinks()) {
+                TOCLinkWrapper tocLinkWrapper1 = createTocLinkWrapper(tocLink1, indentation + 1);
+                if (tocLinkWrapper1.getIndentation() != 3) {
+                    tocLinkWrapper.addChild(tocLinkWrapper1);
+                }
+            }
+        }
+        return tocLinkWrapper;
+    }
+
+    private static ArrayList<TOCLinkWrapper> createTOCFromSpine(List<Link> spine) {
+        ArrayList<TOCLinkWrapper> tocLinkWrappers = new ArrayList<>();
+        for (Link link : spine) {
+            TOCLink tocLink = new TOCLink();
+            tocLink.bookTitle = link.bookTitle;
+            tocLink.href = link.href;
+            tocLinkWrappers.add(new TOCLinkWrapper(tocLink, 0));
+        }
+        return tocLinkWrappers;
+    }
+
+    @Override
+    public void onReceivePublication(EpubPublication publication) {
+        if (publication != null) {
+            if (publication.tableOfContents != null) {
+                ArrayList<TOCLinkWrapper> tocLinkWrappers = new ArrayList<>();
+                for (TOCLink tocLink : publication.tableOfContents) {
+                    TOCLinkWrapper tocLinkWrapper = createTocLinkWrapper(tocLink, 0);
+                    tocLinkWrappers.add(tocLinkWrapper);
+                }
+                tocMvpView.onLoadTOC(tocLinkWrappers);
+            } else {
+                tocMvpView.onLoadTOC(createTOCFromSpine(publication.spines));
+            }
+        } else {
+            tocMvpView.onError();
+        }
+    }
+
+    @Override
+    public void onError() {
+        tocMvpView.onError();
+    }
+}