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gaia/apps/wappush/js/link_action_handler.js

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+/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+/* global ActivityPicker */
+
+(function(exports) {
+  'use strict';
+
+  var inProgress = false;
+
+  var LinkActionHandler = {
+    onClick: function lah_onClick(event) {
+      var dataset = event.target.dataset;
+      var action = dataset.action;
+      var type;
+
+      event.preventDefault();
+
+      if (!action) {
+        return;
+      }
+
+      /* To avoid activity pile up, return immediately if the last activity is
+       * still in progress. */
+      if (inProgress) {
+        return;
+      }
+
+      inProgress = true;
+
+      type = action.replace('-link', '');
+
+      /* Use `LinkActionHandler.reset` (this.reset) as BOTH the success and
+       * error callback. This ensure that any activities will be freed
+       * regardless of their resulting state. */
+
+      ActivityPicker[type](
+        dataset[type], this.reset, this.reset
+      );
+    },
+
+    reset: function lah_reset() {
+      inProgress = false;
+    }
+  };
+
+  exports.LinkActionHandler = LinkActionHandler;
+}(this));