Major revision of page cycler UI.

chrome/common/extensions/docs/examples/apps/cycler/cycler_data.js

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var CyclerData = function () {
+  this.currentCaptures_ = ['alpha', 'beta', 'gamma'];
+
+  /**
+   * Mark a capture as saved successfully. Actual writing of the cache
+   * directory and URL list into the FileSystem is done from the C++ side.
+   * JS side just updates the capture choices.
+   * @param {!string} name The name of the capture.
+   * TODO(cstaley): Implement actual addition of new capture data
+   */
+  this.saveCapture = function(name) {
+    console.log('Saving capture ' + name);
+    this.currentCaptures_.push(name);
+  }
+
+  /**
+   * Return a list of currently stored captures in the local FileSystem.
+   * @return {Array.<!string>} Names of all the current captures.
+   * TODO(cstaley): Implement actual generation of current capture list via
+   * ls-like traversal of the extension's FileSystem.
+   */
+  this.getCaptures = function() {
+    return this.currentCaptures_;
+  }
+
+  /**
+   * Delete capture |name| from the local FileSystem, and update the
+   * capture choices HTML select element.
+   * @param {!string} name The name of the capture to delete.
+   * TODO(cstaley): Implement actual deletion
+   */
+  this.deleteCapture = function(name) {
+    this.currentCaptures_.splice(this.currentCaptures_.indexOf(name), 1);
+  }
+};