Mercurial > snowl

diff content/collections.js @ 275:5982695f4890

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factor out OPML export code from the collections view
author Myk Melez <myk@mozilla.org>
date Thu, 28 Aug 2008 15:43:30 -0700
parents d1a66c6f41c4
children 53d67fb2a9dc
line wrap: on
line diff
--- a/content/collections.js	Thu Aug 28 15:40:21 2008 -0700
+++ b/content/collections.js	Thu Aug 28 15:43:30 2008 -0700
@@ -42,6 +42,7 @@
 Cu.import("resource://snowl/modules/URI.js");
 Cu.import("resource://snowl/modules/identity.js");
 Cu.import("resource://snowl/modules/collection.js");
+Cu.import("resource://snowl/modules/opml.js");
 
 // FIXME: make this configurable.
 const SNOWL_COLLECTIONS_HIERARCHICAL = false;
@@ -352,114 +353,8 @@
     this._obsSvc.notifyObservers(null, "messages:changed", null);
   },
 
-
-  //**************************************************************************//
-  // OPML Export
-  // Based on code in Thunderbird's feed-subscriptions.js
-
-  exportOPML: function() {
-    let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
-    fp.init(window, "Export feeds as an OPML file", Ci.nsIFilePicker.modeSave);
-    fp.appendFilter("OPML Files", "*.opml");
-    fp.appendFilters(Ci.nsIFilePicker.filterXML | Ci.nsIFilePicker.filterAll);
-    fp.defaultString = "feeds.opml";
-    fp.defaultExtension = "opml";
-
-    let rv = fp.show();
-
-    if (rv == Ci.nsIFilePicker.returnCancel)
-      return;
-
-    let doc = this._createOPMLDocument();
-
-    // Format the document with newlines and indentation so it's easier
-    // for humans to read.
-    this._prettifyNode(doc.documentElement, 0);
-
-    let serializer = new XMLSerializer();
-    let foStream = Cc["@mozilla.org/network/file-output-stream;1"].
-                   createInstance(Ci.nsIFileOutputStream);
-    // default mode:  write | create | truncate
-    let mode = 0x02 | 0x08 | 0x20;
-    foStream.init(fp.file, mode, 0666, 0);
-    serializer.serializeToStream(doc, foStream, "utf-8");
-  },
-
-  _createOPMLDocument: function() {
-    let doc = document.implementation.createDocument("", "opml", null);
-    let root = doc.documentElement;
-    root.setAttribute("version", "1.0");
-
-    // Create the <head> element.
-    let head = doc.createElement("head");
-    root.appendChild(head);
-
-    let title = doc.createElement("title");
-    head.appendChild(title);
-    title.appendChild(doc.createTextNode("Snowl OPML Export"));
-
-    let dt = doc.createElement("dateCreated");
-    head.appendChild(dt);
-    dt.appendChild(doc.createTextNode((new Date()).toGMTString()));
-
-    // Create the <body> element.
-    let body = doc.createElement("body");
-    root.appendChild(body);
-
-    // Populate the <body> element with <outline> elements.
-    let sources = SnowlSource.getAll();
-    for each (let source in sources) {
-      let outline = doc.createElement("outline");
-      // XXX Should we specify the |type| attribute, and should we specify
-      // type="atom" for Atom feeds or just type="rss" for all feeds?
-      // This document says the latter but is three years old:
-      // http://www.therssweblog.com/?guid=20051003145153
-      //outline.setAttribute("type", "rss");
-      outline.setAttribute("text", source.name);
-      outline.setAttribute("url", source.humanURI.spec);
-      outline.setAttribute("xmlUrl", source.machineURI.spec);
-      body.appendChild(outline);
-    }
-
-    return doc;
-  },
-
-  _prettifyNode: function(node, level) {
-    let doc = node.ownerDocument;
-
-    // Create a string containing two spaces for every level deep we are.
-    let indentString = new Array(level + 1).join("  ");
-
-    // Indent the tag.
-    if (level > 0)
-      node.parentNode.insertBefore(doc.createTextNode(indentString), node);
-
-    // Grab the list of nodes to format.  We can't just use node.childNodes
-    // because it'd change under us as we insert formatting nodes.
-    let childNodesToFormat = [];
-    for (let i = 0; i < node.childNodes.length; i++)
-      if (node.childNodes[i].nodeType == node.ELEMENT_NODE)
-        childNodesToFormat.push(node.childNodes[i]);
-
-    if (childNodesToFormat.length > 0) {
-      for each (let childNode in childNodesToFormat)
-        this._prettifyNode(childNode, level + 1);
-
-      // Insert a newline after the opening tag.
-      node.insertBefore(doc.createTextNode("\n"), node.firstChild);
-  
-      // Indent the closing tag.
-      node.appendChild(doc.createTextNode(indentString));
-    }
-
-    // Insert a newline after the tag.
-    if (level > 0) {
-      if (node.nextSibling)
-        node.parentNode.insertBefore(doc.createTextNode("\n"),
-                                     node.nextSibling);
-      else
-        node.parentNode.appendChild(doc.createTextNode("\n"));
-    }
+  onExportOPML: function() {
+    SnowlOPML.export(window);
   }
 
 };