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[photos] / src / main / java / org / wamblee / photos / wicket / AlbumPanel.java

diff --git a/src/main/java/org/wamblee/photos/wicket/AlbumPanel.java b/src/main/java/org/wamblee/photos/wicket/AlbumPanel.java
index 093ed15644faf3b8aaef9c91093dedebdf2d3abc..57e95c7983f11c796580976935612ec23096321e 100644 (file)
--- a/src/main/java/org/wamblee/photos/wicket/AlbumPanel.java
+++ b/src/main/java/org/wamblee/photos/wicket/AlbumPanel.java
@@ -42,6 +42,8 @@ public class AlbumPanel extends Panel {
     private static final Logger LOGGER = Logger.getLogger(AlbumPanel.class.getName());
 
     private static final long serialVersionUID = 1L;
+    public static final int MAX_ROWS = 5;
+    public static final int MAX_COLUMNS = 5;
 
     @Inject
     @AuthorizedPhotos
@@ -67,6 +69,7 @@ public class AlbumPanel extends Panel {
     }
 
     private String path;
+    private int index;
 
     /**
      * Constructor that is invoked when page is invoked without a session.
@@ -81,26 +84,118 @@ public class AlbumPanel extends Panel {
             info("Invalid album '" + path + "', showing root album instead");
             path = "/";
         }
+        add(new Label("path", path));
 
-        PhotoEntry current = authorized.getEntry(path);
+        index = 0;
+        String indexString = parameters.getString("index", "0");
+        try {
+            index = Integer.parseInt(indexString);
+        }
+        catch (NumberFormatException e) {
+            // use default value 0
+        }
+        if (index < 0) {
+            index = 0;
+        }
 
+        PhotoEntry current = authorized.getEntry(path);
         if (current instanceof Photo) {
             throw new RuntimeException("AlbumPanel can only show album: " + current.getClass().getName());
         }
+        final Album album = (Album) current;
 
-        Album album = (Album) current;
+        Link prevLink = new Link("prevLink") {
+            {
+                if (index - MAX_ROWS * MAX_COLUMNS < 0) {
+                    setEnabled(false);
+                }
+            }
+
+            @Override
+            public void onClick() {
+                PageParameters pars = new PageParameters();
+                pars.put("path", path);
+                pars.put("index", index - MAX_ROWS * MAX_COLUMNS);
+                setResponsePage(HomePage.class, pars);
+            }
+        };
+        add(prevLink);
+
+        Link nextLink = new Link("nextLink") {
+            {
+                if (index + MAX_ROWS * MAX_COLUMNS >= album.size()) {
+                    setEnabled(false);
+                }
+            }
+
+            @Override
+            public void onClick() {
+                PageParameters pars = new PageParameters();
+                pars.put("path", path);
+                pars.put("index", index + MAX_ROWS * MAX_COLUMNS);
+                setResponsePage(HomePage.class, pars);
+            }
+        };
+        add(nextLink);
+
+        Link parentLink = new Link("parentLink") {
+            {
+                if ("/".equals(path)) {
+                    setEnabled(false);
+                }
+            }
+
+            @Override
+            public void onClick() {
+                PageParameters pars = new PageParameters();
+                String parentPath = path.substring(0, path.lastIndexOf("/"));
+                if (parentPath.length() == 0) {
+                    parentPath = "/";
+                }
+                pars.put("path", parentPath);
+                pars.put("index", 0);
+                setResponsePage(HomePage.class, pars);
+            }
+        };
+        add(parentLink);
+
+        RepeatingView pageLinks = new RepeatingView("pageLinks");
+        add(pageLinks);
+        for (int i = 0; i < album.size() / MAX_ROWS / MAX_COLUMNS; i++) {
+            final int istart = i * MAX_ROWS * MAX_COLUMNS;
+            Link pageLink = new Link("pageLink") {
+                {
+                    if (istart == index) {
+                        setEnabled(false);
+                    }
+                }
+
+                @Override
+                public void onClick() {
+                    PageParameters pars = new PageParameters();
+                    pars.put("path", path);
+                    pars.put("index", istart);
+                    setResponsePage(HomePage.class, pars);
+                }
+            };
+            pageLink.add(new Label("label", i + ""));
+            pageLinks.add(pageLink);
+            WebMarkupContainer container = new WebMarkupContainer(pageLinks.newChildId());
+            container.add(pageLink);
+            pageLinks.add(container);
+        }
 
-        int ientry = 0;
+        int ientry = index;
         int irow = 0;
         RepeatingView row = new RepeatingView("row");
         add(row);
-        while (irow < 5 && ientry < album.size()) {
+        while (irow < MAX_ROWS && ientry < album.size()) {
             int icolumn = 0;
             WebMarkupContainer columns = new WebMarkupContainer(row.newChildId());
             row.add(columns);
             RepeatingView column = new RepeatingView("column");
             columns.add(column);
-            while (icolumn < 5 && ientry < album.size()) {
+            while (icolumn < MAX_COLUMNS && ientry < album.size()) {
                 WebMarkupContainer thumbnail = new WebMarkupContainer(column.newChildId());
                 column.add(thumbnail);