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diff --git a/migratestatusbar.js b/migratestatusbar.js
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+/*
+ * ==VimperatorPlugin==
+ * @name            migratestatusbar.js
+ * @description     migrate specified elements to status bar.
+ * @description-ja  指定した要素をステータスバーに移動する。
+ * @author          janus_wel <janus_wel@fb3.so-net.ne.jp>
+ * @version         0.10
+ * @minversion      2.0pre
+ * @maxversion      2.0pre
+ * ==/VimperatorPlugin==
+ *
+ * LICENSE
+ *  New BSD License
+ *
+ * USAGE
+ *  this script do not effect in default.
+ *  you should set liberator.globalVariables.migrate_elements.
+ *  it is the ARRAY has objects like below:
+ *
+ *      {
+ *          id:    id of the target element,
+ *          dest:  id of the destination element - this is marker. in fine tuning, used 'after',
+ *          after: boolean that show insert position is after 'dest' element.
+ *      }
+ *
+ *  refer: http://d.hatena.ne.jp/janus_wel/20081127/1227807826
+ *
+ * EXAMPLE
+ *  in .vimperatorrc
+ *
+ *  javascript <<EOM
+ *      liberator.globalVariables.migrate_elements = [
+ *          {
+ *              // star button of awesome bar
+ *              id:    'star-button',
+ *              dest:  'security-button',
+ *              after: true,
+ *          },
+ *          {
+ *              // icon that show the existence of RSS and Atom on current page
+ *              id:    'feed-button',
+ *              dest:  'security-button',
+ *              after: true,
+ *          },
+ *          {
+ *              // favicon of awesome bar
+ *              id:    'page-proxy-stack',
+ *              dest:  'liberator-statusline',
+ *              after: false,
+ *          },
+ *      ];
+ *  EOM
+ *
+ * ACKNOWLEDGMENT
+ *  refer: http://vimperator.org/trac/ticket/17
+ *  thanks teramako.
+ *
+ * */
+
+(function(){
+
+const style = [
+    'padding:    1px;',
+    'margin:     0;',
+    'border:     none;',
+    'max-height: 18px;',
+    'max-width:  18px;',
+].join('');
+
+function migrateElements(elements) {
+    const doc = window.document;
+    let master = doc.createElement('statusbarpanel');
+    master.setAttribute('style', style);
+
+    for (let [, e] in Iterator(elements)) {
+        let base = doc.getElementById(e.id);
+        let dest = doc.getElementById(e.dest);
+        if (!dest || !base) {
+            liberator.log('id "' + e.id + '" or "' + e.dest + '" is not exist.', 0);
+            continue;
+        }
+
+        base.setAttribute('style', style);
+        let panel = master.cloneNode(false);
+        panel.setAttribute('id', 'panel-' + e.id);
+        panel.appendChild(base);
+        e.after
+            ? insertNodeAfterSpecified(panel, dest)
+            : insertNodeBeforeSpecified(panel, dest);
+    }
+}
+
+// node control
+function insertNodeBeforeSpecified(inserted, specified) {
+    return specified.parentNode.insertBefore(inserted, specified);
+}
+function insertNodeAfterSpecified(inserted, specified) {
+    var next = specified.nextSibling;
+    if(next) {
+        return specified.parentNode.insertBefore(inserted, next);
+    }
+    else {
+        return specified.parentNode.appendChild(inserted);
+    }
+}
+
+// main
+let elements = liberator.globalVariables.migrate_elements;
+if (elements) migrateElements(elements);
+
+})();
+
+// vim: set sw=4 ts=4 et;