No-change, just splitting up the RSS extension into html+css+js.

BUG=None TEST=RSS extension should work as before. Review URL: http://codereview.chromium.org/387053 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31959 0039d316-1c4b-4281-b951-d872f2087c98
author: finnur@chromium.org <finnur@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> 2009-11-13 22:24:36 +0000
committer: finnur@chromium.org <finnur@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> 2009-11-13 22:24:36 +0000
commit: 5cc51514b85ab4db37f25234047520746fc6d855 (patch)
tree: 3750b9fba092f48313d0d028e80669fbc6678f1e
parent: 1307901f3bb5ab694530551f05e3898596acd854 (diff)
download: chromium_src-5cc51514b85ab4db37f25234047520746fc6d855.zip
chromium_src-5cc51514b85ab4db37f25234047520746fc6d855.tar.gz
chromium_src-5cc51514b85ab4db37f25234047520746fc6d855.tar.bz2
3 files changed, 497 insertions, 500 deletions
diff --git a/chrome/test/data/extensions/subscribe_page_action/subscribe.css b/chrome/test/data/extensions/subscribe_page_action/subscribe.css
new file mode 100644
index 0000000..708fe92e
--- /dev/null
+++ b/chrome/test/data/extensions/subscribe_page_action/subscribe.css
@@ -0,0 +1,118 @@
+body {
+  display:-webkit-box;
+  -webkit-box-orient:vertical;
+}
+
+body>* {
+  display:-webkit-box;
+}
+
+#items {
+  -webkit-box-flex:1;
+  -webkit-box-orient:vertical;
+  -webkit-box-align:stretch;
+}
+
+iframe {
+  display:-webkit-box;
+  -webkit-box-flex:1;
+}
+
+.splitter {
+  padding: 2px 8px 2px 5px;
+  border-top: solid 1px #9CC2EF;
+  background: #EBEFF9;
+  font-size: 13px;
+  font-weight:bold;
+}
+
+.editLinks {
+  font-size: 10px;
+}
+
+#dialogBackground, #dialogBackground div {
+  display: -webkit-box;
+  -webkit-box-align: center;
+}
+
+#dialog input[type="button"] {
+  font-size: 12px;
+  height: 25px;
+  width: 100px;
+}
+
+#dialog input[type="text"] {
+  font-size: 12px;
+  font-family: Arial, Helvetica, sans-serif;
+  width: 220px;
+}
+
+#dialogBackground {
+  background-color: rgba(0, 0, 0, .2);
+  display: none;
+  height: 100%;
+  left: 0;
+  position: fixed;
+  top: 0;
+  width: 100%;
+  z-index: 1;
+  -webkit-box-orient: vertical;
+  -webkit-user-select:none;
+}
+
+#dialogHBackground {
+  height: 100%;
+  -webkit-box-orient: horizontal;
+}
+
+#dialog {
+  background-color: #5296DE;
+  border: 1px solid #3A75BD;
+  border-radius: 6px 6px;
+  font-size: 12px;
+  width: 355px;
+  -webkit-box-orient: vertical;
+}
+
+#dialogHeader {
+  background-color: rgba(0,0,0,0);
+  color: white;
+  font-weight: bold;
+  margin: 4px;
+  width: 100%;
+}
+
+#dialogBody {
+  background-color: rgb(240, 240, 240);
+  border: 1px solid #3A75BD;
+  border-bottom-left-radius: 4px 4px;
+  border-bottom-right-radius: 4px 4px;
+  margin: 0px 2px 2px 2px;
+  padding-bottom: 10px;
+  padding-right: 10px;
+  padding-top: 10px;
+  -webkit-box-orient: vertical;
+  width: 340px;
+}
+
+.dialogRow {
+  margin-left: -24px;
+  width: 100%;
+  -webkit-box-orient: horizontal;
+  -webkit-box-pack: end;
+}
+
+.dialogRow>* {
+  margin: 2px
+}
+
+#dialogContentFooter {
+  margin-bottom: 6px;
+  margin-left: -12px;
+  margin-top: 20px;
+  padding-right: 10px;
+}
+
+.status {
+  background-color: #FFF18A;
+}
diff --git a/chrome/test/data/extensions/subscribe_page_action/subscribe.html b/chrome/test/data/extensions/subscribe_page_action/subscribe.html
index 3fd22dd..d696a67 100644
--- a/chrome/test/data/extensions/subscribe_page_action/subscribe.html
+++ b/chrome/test/data/extensions/subscribe_page_action/subscribe.html
@@ -1,505 +1,9 @@
 <html>
 <head>
-<title>Subscribe to feed</title>
-
-<script type="text/javascript">
-  // Grab the querystring, removing question mark at the front and splitting on
-  // the ampersand.
-  var queryString = location.search.substring(1).split("&");
-
-  // The feed URL is the first component and always present.
-  var feedUrl = decodeURIComponent(queryString[0]);
-
-  // We allow synchronous requests for testing. This component is only present
-  // if true.
-  var synchronousRequest = queryString[1] == "synchronous";
-
-  // The XMLHttpRequest object that tries to load and parse the feed, and (if
-  // testing) also the style sheet and the frame js.
-  var req;
-
-  // Depending on whether this is run from a test or from the extension, this
-  // will either be a link to the css file within the extension or contain the
-  // contents of the style sheet, fetched through XmlHttpRequest.
-  var styleSheet = "";
-
-  // Depending on whether this is run from a test or from the extension, this
-  // will either be a link to the js file within the extension or contain the
-  // contents of the style sheet, fetched through XmlHttpRequest.
-  var frameScript = "";
-
-  // What to show when we cannot parse the feed name.
-  var unknownName = "Unknown feed name";
-
-  // Various text messages within the edit dialog.
-  var assistText = "Insert %s in the URL where the feed url should appear.";
-  var savedMsg = "Your changes have been saved.";
-  var setDefaultMsg = "This reader has been set as your default reader.";
-
-  // A list of feed readers, populated by localStorage if available, otherwise
-  // hard coded.
-  var feedReaderList;
-
-  // Whether we can modify the list of readers.
-  var storageEnabled = window.localStorage != null;
-
-  // Navigates to the reader of the user's choice (for subscribing to the feed).
-  function navigate() {
-    var select = document.getElementById('readerDropdown');
-    var url = feedReaderList[select.selectedIndex].url.replace("%s", feedUrl);
-    document.location = url;
-  }
-
-  /**
-   * The main function. Sets up the selection list for possible readers and
-   * fetches the data.
-   */
-  function main() {
-    // This is the default list, unless replaced by what was saved previously.
-    feedReaderList = [
-      {'url': 'http://www.google.com/reader/view/feed/%s',
-       'description': 'Google Reader'},
-      {'url': 'http://www.google.com/ig/adde?moduleurl=%s',
-       'description': 'iGoogle'},
-      {'url': 'http://www.bloglines.com/login?r=/sub/%s',
-       'description': 'Bloglines'},
-      {'url': 'http://add.my.yahoo.com/rss?url=%s',
-       'description': 'My Yahoo'}];
-
-    if (!storageEnabled) {
-      // No local storage means we can't make changes to the list, so disable
-      // the Edit and the Remove link permanently.
-      document.getElementById('editLink').innerHTML = "";
-      document.getElementById('removeLink').innerHTML = "";
-    } else {
-      if (window.localStorage.readerList)
-        feedReaderList = JSON.parse(window.localStorage.readerList);
-    }
-
-    // Populate the list of readers.
-    var readerDropdown = document.getElementById('readerDropdown');
-    for (i = 0; i < feedReaderList.length; ++i) {
-      readerDropdown.options[i] = new Option(feedReaderList[i].description, i);
-      if (storageEnabled && isDefaultReader(feedReaderList[i].url))
-        readerDropdown.selectedIndex = i;
-    }
-
-    if (storageEnabled)
-      readerDropdown.options[i] = new Option("Add new...", "");
-
-    // Now fetch the data.
-    req = new XMLHttpRequest();
-    if (synchronousRequest) {
-      // Tests that load the html page directly through a file:// url don't have
-      // access to the js and css from the frame so we must load them first and
-      // inject them into the src for the iframe.
-      req.open("GET", "style.css", false);
-      req.send(null);
-
-      styleSheet = "<style>" + req.responseText + "</style>";
-
-      req.open("GET", "iframe.js", false);
-      req.send(null);
-
-      frameScript = "<script>" + req.responseText +
-                    "<" + "/script>";
-    } else {
-      // Normal loading just requires links to the css and the js file.
-      styleSheet = "<link rel='stylesheet' type='text/css' href='" +
-                    chrome.extension.getURL("style.css") + "'>";
-      frameScript = "<script src='" + chrome.extension.getURL("iframe.js") +
-                    "'></" + "script>";
-    }
-
-    feedUrl = decodeURIComponent(feedUrl);
-    req.onload = handleResponse;
-    req.onerror = handleError;
-    req.open("GET", feedUrl, !synchronousRequest);
-    req.send(null);
-  }
-
-  // Sets the title for the feed.
-  function setFeedTitle(title) {
-    var titleTag = document.getElementById('title');
-    titleTag.textContent = "Feed for '" + title + "'";
-  }
-
-  // Handles errors during the XMLHttpRequest.
-  function handleError() {
-    handleFeedParsingFailed("Error fetching feed");
-  }
-
-  // Handles feed parsing errors.
-  function handleFeedParsingFailed(error) {
-    setFeedTitle(unknownName);
-
-    // The tests always expect an IFRAME, so add one showing the error.
-    var html = "<body><span id=\"error\" class=\"item_desc\">" + error +
-               "</span></body>";
-
-    var error_frame = createFrame('error', html);
-    var itemsTag = document.getElementById('items');
-    itemsTag.appendChild(error_frame);
-  }
-
-  function createFrame(frame_id, html) {
-    frame = document.createElement('iframe');
-    frame.id = frame_id;
-    frame.src = "data:text/html;charset=utf-8,<html>" + styleSheet + html +
-                "</html>";
-    frame.scrolling = "auto";
-    frame.frameBorder = "0";
-    frame.marginWidth = "0";
-    return frame;
-  }
-
-  function embedAsIframe(rssText) {
-    var itemsTag = document.getElementById('items');
-
-    // TODO(aa): Add base URL tag
-    iframe = createFrame('rss', styleSheet + frameScript);
-    itemsTag.appendChild(iframe);
-
-    iframe.onload = function() {
-      iframe.contentWindow.postMessage(rssText, "*");
-    }
-  }
-
-  // Handles parsing the feed data we got back from XMLHttpRequest.
-  function handleResponse() {
-    // Uncomment these three lines to see what the feed data looks like.
-    // var itemsTag = document.getElementById('items');
-    // itemsTag.textContent = req.responseText;
-    // return;
-
-    var doc = req.responseXML;
-    if (!doc) {
-      handleFeedParsingFailed("Not a valid feed.");
-      return;
-    }
-
-    // We must find at least one 'entry' or 'item' element before proceeding.
-    var entries = doc.getElementsByTagName('entry');
-    if (entries.length == 0)
-      entries = doc.getElementsByTagName('item');
-    if (entries.length == 0) {
-      handleFeedParsingFailed("This feed contains no entries.")
-      return;
-    }
-
-    // Figure out what the title of the whole feed is.
-    var title = doc.getElementsByTagName('title')[0];
-    if (title)
-      setFeedTitle(title.textContent);
-    else
-      setFeedTitle(unknownName);
-
-    // Add an IFRAME with the html contents.
-    embedAsIframe(req.responseText);
-  }
-
-  /**
-   * Check to see if the current item is set as default reader.
-   */
-  function isDefaultReader(url) {
-    defaultReader = window.localStorage.defaultReader ?
-                      window.localStorage.defaultReader : "";
-    return url == defaultReader;
-  }
-
-  /**
-   * Shows the Edit Feed Reader dialog.
-   */
-  function showDialog() {
-    // Set the values for this dialog box before showing it.
-    document.getElementById('statusMsg').innerText = "";
-    document.getElementById('urlAssist').innerText = assistText;
-    document.getElementById('setDefault').display = "none";
-
-    var readerDropdown = document.getElementById('readerDropdown');
-
-    if (readerDropdown.value != "") {
-      // We are not adding a new value, so we populate the dialog box.
-      document.getElementById('urlText').value =
-        feedReaderList[readerDropdown.value].url;
-      document.getElementById('descriptionText').value =
-        readerDropdown.options[readerDropdown.selectedIndex].text;
-    }
-
-    validateInput(null);
-
-    var url = document.getElementById('urlText').value;
-    if (url.length > 0 && !isDefaultReader(url)) {
-      var setDefault = document.getElementById('setDefault');
-      setDefault.disabled = false;
-      setDefault.style.display = "inline";
-    }
-
-    // Show the dialog box.
-    document.getElementById('dialogBackground').style.display = "-webkit-box";
-  }
-
-  /**
-   * Hides the Edit Feed Reader dialog.
-   */
-  function hideDialog() {
-    var selected = readerDropdown.selectedIndex;
-    var addNew = readerDropdown.value.length == 0;
-
-    var setDefault = document.getElementById('setDefault');
-    setDefault.disabled = true;
-    setDefault.style.display = "none";
-
-    document.getElementById('dialogBackground').style.display = "none";
-
-    if (addNew && readerDropdown[selected].text == "")
-      removeEntry(true);  // User cancelled. Remove the entry without prompting.
-  }
-
-  function saveFeedReaderList() {
-    window.localStorage.readerList = JSON.stringify(feedReaderList);
-  }
-
-  /**
-   * Handler for saving the values.
-   */
-  function save() {
-    var readerDropdown = document.getElementById('readerDropdown');
-    var selected = readerDropdown.selectedIndex;
-    var addNew = readerDropdown.value.length == 0;
-    var oldUrl = addNew ? "" : feedReaderList[selected].url;
-    var url = document.getElementById('urlText').value;
-    var description = document.getElementById('descriptionText').value;
-
-    // Update the UI to reflect the changes.
-    readerDropdown.options[selected].text = description;
-    readerDropdown.options[selected].value = selected;
-    document.getElementById('statusMsg').innerText = savedMsg;
-    document.getElementById('save').disabled = true;
-
-    if (addNew) {
-      feedReaderList.push({'url': url, 'description': description});
-    } else {
-      feedReaderList[selected].description = description;
-      feedReaderList[selected].url = url;
-    }
-
-    saveFeedReaderList();
-
-    var wasDefault = isDefaultReader(oldUrl);
-
-    if (wasDefault) {
-      // If this was the default, it should still be the default after we
-      // modify it.
-      window.localStorage.defaultReader = url;
-    } else if (!isDefaultReader(url)) {
-      // Enable the set as default button.
-      var setDefault = document.getElementById('setDefault');
-      setDefault.disabled = false;
-      setDefault.style.display = "inline";
-    }
-  }
-
-  /**
-   * Removes an entry from the list.
-   */
-  function removeEntry(force) {
-    var selected = readerDropdown.selectedIndex;
-
-    if (!force) {
-      // Minimum number of entries (1 plus "Add New...").
-      var minEntries = 2;
-      if (readerDropdown.options.length == minEntries) {
-        alert('There must be at least one entry in this list');
-        return;
-      }
-
-      var reply = confirm("Are you sure you want to remove '" +
-                          readerDropdown[selected].text + "'?");
-      if (!reply)
-        return;
-    }
-
-    feedReaderList.splice(selected, 1);
-    readerDropdown.remove(selected);
-    saveFeedReaderList();
-  }
-
-  /**
-   * Validates the input in the form (making sure something is entered in both
-   * fields and that %s is not missing from the url field.
-   */
-  function validateInput() {
-    document.getElementById('statusMsg').innerText = "";
-    document.getElementById('setDefault').disabled = true;
-
-    var description = document.getElementById('descriptionText');
-    var url = document.getElementById('urlText');
-
-    var valid = description.value.length > 0 &&
-                url.value.length > 0 &&
-                url.value.indexOf("%s") > -1;
-
-    document.getElementById('save').disabled = !valid;
-  }
-
-  /**
-   * Handler for setting the current reader as default.
-   */
-  function setAsDefault() {
-    window.localStorage.defaultReader =
-        document.getElementById('urlText').value;
-
-    document.getElementById('statusMsg').innerText = setDefaultMsg;
-
-    document.getElementById('setDefault').disabled = true;
-  }
-
-  /**
-   * Handler for when selection changes.
-   */
-  function onSelectChanged() {
-    if (!storageEnabled)
-      return;
-
-    var readerDropdown = document.getElementById('readerDropdown');
-
-    // If the last item (Add new...) was selected we need to add an empty item
-    // for it. But adding values to the dropdown resets the selectedIndex, so we
-    // need to save it first.
-    var oldSelection = readerDropdown.selectedIndex;
-    if (readerDropdown.selectedIndex == readerDropdown.length - 1) {
-      readerDropdown[readerDropdown.selectedIndex] = new Option("", "");
-      readerDropdown.options[readerDropdown.length] =
-          new Option("Add new...", "");
-      readerDropdown.selectedIndex = oldSelection;
-      document.getElementById('urlText').value = "";
-      document.getElementById('descriptionText').value = "";
-      showDialog();
-    }
-  }
-</script>
-<link rel="stylesheet" href="style.css" type="text/css" />
-<style>
-body {
-  display:-webkit-box;
-  -webkit-box-orient:vertical;
-}
-
-body>* {
-  display:-webkit-box;
-}
-
-#items {
-  -webkit-box-flex:1;
-  -webkit-box-orient:vertical;
-  -webkit-box-align:stretch;
-}
-
-iframe {
-  display:-webkit-box;
-  -webkit-box-flex:1;
-}
-
-.splitter {
-  padding: 2px 8px 2px 5px;
-  border-top: solid 1px #9CC2EF;
-  background: #EBEFF9;
-  font-size: 13px;
-  font-weight:bold;
-}
-
-.editLinks {
-  font-size: 10px;
-}
-
-#dialogBackground, #dialogBackground div {
-  display: -webkit-box;
-  -webkit-box-align: center;
-}
-
-#dialog input[type="button"] {
-  font-size: 12px;
-  height: 25px;
-  width: 100px;
-}
-
-#dialog input[type="text"] {
-  font-size: 12px;
-  font-family: Arial, Helvetica, sans-serif;
-  width: 220px;
-}
-
-#dialogBackground {
-  background-color: rgba(0, 0, 0, .2);
-  display: none;
-  height: 100%;
-  left: 0;
-  position: fixed;
-  top: 0;
-  width: 100%;
-  z-index: 1;
-  -webkit-box-orient: vertical;
-  -webkit-user-select:none;
-}
-
-#dialogHBackground {
-  height: 100%;
-  -webkit-box-orient: horizontal;
-}
-
-#dialog {
-  background-color: #5296DE;
-  border: 1px solid #3A75BD;
-  border-radius: 6px 6px;
-  font-size: 12px;
-  width: 355px;
-  -webkit-box-orient: vertical;
-}
-
-#dialogHeader {
-  background-color: rgba(0,0,0,0);
-  color: white;
-  font-weight: bold;
-  margin: 4px;
-  width: 100%;
-}
-
-#dialogBody {
-  background-color: rgb(240, 240, 240);
-  border: 1px solid #3A75BD;
-  border-bottom-left-radius: 4px 4px;
-  border-bottom-right-radius: 4px 4px;
-  margin: 0px 2px 2px 2px;
-  padding-bottom: 10px;
-  padding-right: 10px;
-  padding-top: 10px;
-  -webkit-box-orient: vertical;
-  width: 340px;
-}
-
-.dialogRow {
-  margin-left: -24px;
-  width: 100%;
-  -webkit-box-orient: horizontal;
-  -webkit-box-pack: end;
-}
-
-.dialogRow>* {
-  margin: 2px
-}
-
-#dialogContentFooter {
-  margin-bottom: 6px;
-  margin-left: -12px;
-  margin-top: 20px;
-  padding-right: 10px;
-}
-
-.status {
-  background-color: #FFF18A;
-}
-</style>
+  <title>Subscribe to feed</title>
+  <link rel="stylesheet" href="style.css" type="text/css" />
+  <link rel="stylesheet" href="subscribe.css" type="text/css" />
+  <script type="text/javascript" src="subscribe.js"></script>
 </head>
 
 <body onload="main();">
diff --git a/chrome/test/data/extensions/subscribe_page_action/subscribe.js b/chrome/test/data/extensions/subscribe_page_action/subscribe.js
new file mode 100644
index 0000000..d0a9a6c
--- /dev/null
+++ b/chrome/test/data/extensions/subscribe_page_action/subscribe.js
@@ -0,0 +1,375 @@
+// Grab the querystring, removing question mark at the front and splitting on
+// the ampersand.
+var queryString = location.search.substring(1).split("&");
+
+// The feed URL is the first component and always present.
+var feedUrl = decodeURIComponent(queryString[0]);
+
+// We allow synchronous requests for testing. This component is only present
+// if true.
+var synchronousRequest = queryString[1] == "synchronous";
+
+// The XMLHttpRequest object that tries to load and parse the feed, and (if
+// testing) also the style sheet and the frame js.
+var req;
+
+// Depending on whether this is run from a test or from the extension, this
+// will either be a link to the css file within the extension or contain the
+// contents of the style sheet, fetched through XmlHttpRequest.
+var styleSheet = "";
+
+// Depending on whether this is run from a test or from the extension, this
+// will either be a link to the js file within the extension or contain the
+// contents of the style sheet, fetched through XmlHttpRequest.
+var frameScript = "";
+
+// What to show when we cannot parse the feed name.
+var unknownName = "Unknown feed name";
+
+// Various text messages within the edit dialog.
+var assistText = "Insert %s in the URL where the feed url should appear.";
+var savedMsg = "Your changes have been saved.";
+var setDefaultMsg = "This reader has been set as your default reader.";
+
+// A list of feed readers, populated by localStorage if available, otherwise
+// hard coded.
+var feedReaderList;
+
+// Whether we can modify the list of readers.
+var storageEnabled = window.localStorage != null;
+
+// Navigates to the reader of the user's choice (for subscribing to the feed).
+function navigate() {
+  var select = document.getElementById('readerDropdown');
+  var url = feedReaderList[select.selectedIndex].url.replace("%s", feedUrl);
+  document.location = url;
+}
+
+/**
+* The main function. Sets up the selection list for possible readers and
+* fetches the data.
+*/
+function main() {
+  // This is the default list, unless replaced by what was saved previously.
+  feedReaderList = [
+      { 'url': 'http://www.google.com/reader/view/feed/%s',
+        'description': 'Google Reader' },
+      { 'url': 'http://www.google.com/ig/adde?moduleurl=%s',
+        'description': 'iGoogle' },
+      { 'url': 'http://www.bloglines.com/login?r=/sub/%s',
+        'description': 'Bloglines' },
+      { 'url': 'http://add.my.yahoo.com/rss?url=%s',
+        'description': 'My Yahoo' }];
+
+  if (!storageEnabled) {
+    // No local storage means we can't make changes to the list, so disable
+    // the Edit and the Remove link permanently.
+    document.getElementById('editLink').innerHTML = "";
+    document.getElementById('removeLink').innerHTML = "";
+  } else {
+    if (window.localStorage.readerList)
+      feedReaderList = JSON.parse(window.localStorage.readerList);
+  }
+
+  // Populate the list of readers.
+  var readerDropdown = document.getElementById('readerDropdown');
+  for (i = 0; i < feedReaderList.length; ++i) {
+    readerDropdown.options[i] = new Option(feedReaderList[i].description, i);
+    if (storageEnabled && isDefaultReader(feedReaderList[i].url))
+      readerDropdown.selectedIndex = i;
+  }
+
+  if (storageEnabled)
+    readerDropdown.options[i] = new Option("Add new...", "");
+
+  // Now fetch the data.
+  req = new XMLHttpRequest();
+  if (synchronousRequest) {
+    // Tests that load the html page directly through a file:// url don't have
+    // access to the js and css from the frame so we must load them first and
+    // inject them into the src for the iframe.
+    req.open("GET", "style.css", false);
+    req.send(null);
+
+    styleSheet = "<style>" + req.responseText + "</style>";
+
+    req.open("GET", "iframe.js", false);
+    req.send(null);
+
+    frameScript = "<script>" + req.responseText +
+                    "<" + "/script>";
+  } else {
+    // Normal loading just requires links to the css and the js file.
+    styleSheet = "<link rel='stylesheet' type='text/css' href='" +
+                    chrome.extension.getURL("style.css") + "'>";
+    frameScript = "<script src='" + chrome.extension.getURL("iframe.js") +
+                    "'></" + "script>";
+  }
+
+  feedUrl = decodeURIComponent(feedUrl);
+  req.onload = handleResponse;
+  req.onerror = handleError;
+  req.open("GET", feedUrl, !synchronousRequest);
+  req.send(null);
+}
+
+// Sets the title for the feed.
+function setFeedTitle(title) {
+  var titleTag = document.getElementById('title');
+  titleTag.textContent = "Feed for '" + title + "'";
+}
+
+// Handles errors during the XMLHttpRequest.
+function handleError() {
+  handleFeedParsingFailed("Error fetching feed");
+}
+
+// Handles feed parsing errors.
+function handleFeedParsingFailed(error) {
+  setFeedTitle(unknownName);
+
+  // The tests always expect an IFRAME, so add one showing the error.
+  var html = "<body><span id=\"error\" class=\"item_desc\">" + error +
+               "</span></body>";
+
+  var error_frame = createFrame('error', html);
+  var itemsTag = document.getElementById('items');
+  itemsTag.appendChild(error_frame);
+}
+
+function createFrame(frame_id, html) {
+  frame = document.createElement('iframe');
+  frame.id = frame_id;
+  frame.src = "data:text/html;charset=utf-8,<html>" + styleSheet + html +
+                "</html>";
+  frame.scrolling = "auto";
+  frame.frameBorder = "0";
+  frame.marginWidth = "0";
+  return frame;
+}
+
+function embedAsIframe(rssText) {
+  var itemsTag = document.getElementById('items');
+
+  // TODO(aa): Add base URL tag
+  iframe = createFrame('rss', styleSheet + frameScript);
+  itemsTag.appendChild(iframe);
+
+  iframe.onload = function() {
+    iframe.contentWindow.postMessage(rssText, "*");
+  }
+}
+
+// Handles parsing the feed data we got back from XMLHttpRequest.
+function handleResponse() {
+  // Uncomment these three lines to see what the feed data looks like.
+  // var itemsTag = document.getElementById('items');
+  // itemsTag.textContent = req.responseText;
+  // return;
+
+  var doc = req.responseXML;
+  if (!doc) {
+    handleFeedParsingFailed("Not a valid feed.");
+    return;
+  }
+
+  // We must find at least one 'entry' or 'item' element before proceeding.
+  var entries = doc.getElementsByTagName('entry');
+  if (entries.length == 0)
+    entries = doc.getElementsByTagName('item');
+  if (entries.length == 0) {
+    handleFeedParsingFailed("This feed contains no entries.")
+    return;
+  }
+
+  // Figure out what the title of the whole feed is.
+  var title = doc.getElementsByTagName('title')[0];
+  if (title)
+    setFeedTitle(title.textContent);
+  else
+    setFeedTitle(unknownName);
+
+  // Add an IFRAME with the html contents.
+  embedAsIframe(req.responseText);
+}
+
+/**
+* Check to see if the current item is set as default reader.
+*/
+function isDefaultReader(url) {
+  defaultReader = window.localStorage.defaultReader ?
+                      window.localStorage.defaultReader : "";
+  return url == defaultReader;
+}
+
+/**
+* Shows the Edit Feed Reader dialog.
+*/
+function showDialog() {
+  // Set the values for this dialog box before showing it.
+  document.getElementById('statusMsg').innerText = "";
+  document.getElementById('urlAssist').innerText = assistText;
+  document.getElementById('setDefault').display = "none";
+
+  var readerDropdown = document.getElementById('readerDropdown');
+
+  if (readerDropdown.value != "") {
+    // We are not adding a new value, so we populate the dialog box.
+    document.getElementById('urlText').value =
+        feedReaderList[readerDropdown.value].url;
+    document.getElementById('descriptionText').value =
+        readerDropdown.options[readerDropdown.selectedIndex].text;
+  }
+
+  validateInput(null);
+
+  var url = document.getElementById('urlText').value;
+  if (url.length > 0 && !isDefaultReader(url)) {
+    var setDefault = document.getElementById('setDefault');
+    setDefault.disabled = false;
+    setDefault.style.display = "inline";
+  }
+
+  // Show the dialog box.
+  document.getElementById('dialogBackground').style.display = "-webkit-box";
+}
+
+/**
+* Hides the Edit Feed Reader dialog.
+*/
+function hideDialog() {
+  var selected = readerDropdown.selectedIndex;
+  var addNew = readerDropdown.value.length == 0;
+
+  var setDefault = document.getElementById('setDefault');
+  setDefault.disabled = true;
+  setDefault.style.display = "none";
+
+  document.getElementById('dialogBackground').style.display = "none";
+
+  if (addNew && readerDropdown[selected].text == "")
+    removeEntry(true);  // User cancelled. Remove the entry without prompting.
+}
+
+function saveFeedReaderList() {
+  window.localStorage.readerList = JSON.stringify(feedReaderList);
+}
+
+/**
+* Handler for saving the values.
+*/
+function save() {
+  var readerDropdown = document.getElementById('readerDropdown');
+  var selected = readerDropdown.selectedIndex;
+  var addNew = readerDropdown.value.length == 0;
+  var oldUrl = addNew ? "" : feedReaderList[selected].url;
+  var url = document.getElementById('urlText').value;
+  var description = document.getElementById('descriptionText').value;
+
+  // Update the UI to reflect the changes.
+  readerDropdown.options[selected].text = description;
+  readerDropdown.options[selected].value = selected;
+  document.getElementById('statusMsg').innerText = savedMsg;
+  document.getElementById('save').disabled = true;
+
+  if (addNew) {
+    feedReaderList.push({ 'url': url, 'description': description });
+  } else {
+    feedReaderList[selected].description = description;
+    feedReaderList[selected].url = url;
+  }
+
+  saveFeedReaderList();
+
+  var wasDefault = isDefaultReader(oldUrl);
+
+  if (wasDefault) {
+    // If this was the default, it should still be the default after we
+    // modify it.
+    window.localStorage.defaultReader = url;
+  } else if (!isDefaultReader(url)) {
+    // Enable the set as default button.
+    var setDefault = document.getElementById('setDefault');
+    setDefault.disabled = false;
+    setDefault.style.display = "inline";
+  }
+}
+
+/**
+* Removes an entry from the list.
+*/
+function removeEntry(force) {
+  var selected = readerDropdown.selectedIndex;
+
+  if (!force) {
+    // Minimum number of entries (1 plus "Add New...").
+    var minEntries = 2;
+    if (readerDropdown.options.length == minEntries) {
+      alert('There must be at least one entry in this list');
+      return;
+    }
+
+    var reply = confirm("Are you sure you want to remove '" +
+                          readerDropdown[selected].text + "'?");
+    if (!reply)
+      return;
+  }
+
+  feedReaderList.splice(selected, 1);
+  readerDropdown.remove(selected);
+  saveFeedReaderList();
+}
+
+/**
+* Validates the input in the form (making sure something is entered in both
+* fields and that %s is not missing from the url field.
+*/
+function validateInput() {
+  document.getElementById('statusMsg').innerText = "";
+  document.getElementById('setDefault').disabled = true;
+
+  var description = document.getElementById('descriptionText');
+  var url = document.getElementById('urlText');
+
+  var valid = description.value.length > 0 &&
+                url.value.length > 0 &&
+                url.value.indexOf("%s") > -1;
+
+  document.getElementById('save').disabled = !valid;
+}
+
+/**
+* Handler for setting the current reader as default.
+*/
+function setAsDefault() {
+  window.localStorage.defaultReader =
+        document.getElementById('urlText').value;
+
+  document.getElementById('statusMsg').innerText = setDefaultMsg;
+
+  document.getElementById('setDefault').disabled = true;
+}
+
+/**
+* Handler for when selection changes.
+*/
+function onSelectChanged() {
+  if (!storageEnabled)
+    return;
+
+  var readerDropdown = document.getElementById('readerDropdown');
+
+  // If the last item (Add new...) was selected we need to add an empty item
+  // for it. But adding values to the dropdown resets the selectedIndex, so we
+  // need to save it first.
+  var oldSelection = readerDropdown.selectedIndex;
+  if (readerDropdown.selectedIndex == readerDropdown.length - 1) {
+    readerDropdown[readerDropdown.selectedIndex] = new Option("", "");
+    readerDropdown.options[readerDropdown.length] =
+          new Option("Add new...", "");
+    readerDropdown.selectedIndex = oldSelection;
+    document.getElementById('urlText').value = "";
+    document.getElementById('descriptionText').value = "";
+    showDialog();
+  }
+}
author	finnur@chromium.org <finnur@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>	2009-11-13 22:24:36 +0000
committer	finnur@chromium.org <finnur@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>	2009-11-13 22:24:36 +0000
commit	5cc51514b85ab4db37f25234047520746fc6d855 (patch)
tree	3750b9fba092f48313d0d028e80669fbc6678f1e
parent	1307901f3bb5ab694530551f05e3898596acd854 (diff)
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