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+// Input History
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+//
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+// Douglas Thrift
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+//
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+// bootstrap.js
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+
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+/* ***** BEGIN LICENSE BLOCK *****
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+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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+ *
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+ * The contents of this file are subject to the Mozilla Public License Version
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+ * 1.1 (the "License"); you may not use this file except in compliance with
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+ * the License. You may obtain a copy of the License at
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+ * http://www.mozilla.org/MPL/
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+ *
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+ * Software distributed under the License is distributed on an "AS IS" basis,
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+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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+ * for the specific language governing rights and limitations under the
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+ * License.
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+ *
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+ * The Original Code is Input History.
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+ *
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+ * The Initial Developer of the Original Code is
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+ * Douglas Thrift <douglas@douglasthrift.net>.
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+ * Portions created by the Initial Developer are Copyright (C) 2011
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+ * the Initial Developer. All Rights Reserved.
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+ *
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+ * Contributor(s):
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+ *
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+ * Alternatively, the contents of this file may be used under the terms of
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+ * either the GNU General Public License Version 2 or later (the "GPL"), or
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+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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+ * in which case the provisions of the GPL or the LGPL are applicable instead
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+ * of those above. If you wish to allow use of your version of this file only
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+ * under the terms of either the GPL or the LGPL, and not to allow others to
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+ * use your version of this file under the terms of the MPL, indicate your
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+ * decision by deleting the provisions above and replace them with the notice
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+ * and other provisions required by the GPL or the LGPL. If you do not delete
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+ * the provisions above, a recipient may use your version of this file under
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+ * the terms of any one of the MPL, the GPL or the LGPL.
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+ *
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+ * ***** END LICENSE BLOCK ***** */
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+
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+Components.utils.import("resource:///modules/imServices.jsm");
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+
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+function generatorFromArray(array)
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+{
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+ for (var index = 0; index != array.length; ++index)
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+ yield array[index];
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+}
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+
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+function generatorFromEnumerator(enumerator)
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+{
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+ while (enumerator.hasMoreElements())
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+ yield enumerator.getNext();
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+}
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+
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+let observer = {
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+ observe: function(subject, topic, data)
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+ {
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+ if (topic != "conversation-loaded")
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+ return;
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+
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+ this.addArrowListener(subject);
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+ },
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+ addArrowListener: function(browser)
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+ {
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+ var binding = browser.ownerDocument.getBindingParent(browser);
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+
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+ if (!binding || !("editor" in binding) || !binding.editor)
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+ return;
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+
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+ binding.editor.addEventListener("keypress", this.onKeyPress, true);
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+ },
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+ removeArrowListener: function(browser)
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+ {
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+ var binding = browser.ownerDocument.getBindingParent(browser);
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+
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+ if (!binding || !("editor" in binding) || !binding.editor)
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+ return;
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+
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+ binding.editor.removeEventListener("keypress", this.onKeyPress, true);
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+ },
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+ onKeyPress: function(event)
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+ {
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+ if (!event.ctrlKey || ((event.keyCode != event.DOM_VK_UP) && (event.keyCode != event.DOM_VK_DOWN)) || event.altKey || event.metaKey || event.shiftKey)
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+ return;
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+
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+ event.preventDefault();
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+
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+ Services.console.logStringMessage(event);
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+ },
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+};
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+
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+function startup(data, reason)
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+{
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+ for each (let window in generatorFromEnumerator(Services.wm.getEnumerator("Messenger:convs")))
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+ for each (let tabconversation in generatorFromArray(window.document.getElementsByTagName("tabconversation")))
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+ for each (let browser in tabconversation.browsers)
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+ observer.addArrowListener(browser);
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+
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+ Services.obs.addObserver(observer, "conversation-loaded", false);
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+}
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+
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+function shutdown(data, reason)
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+{
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+ Services.obs.removeObserver(observer, "conversation-loaded");
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+
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+ for each (let window in generatorFromEnumerator(Services.wm.getEnumerator("Messenger:convs")))
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+ for each (let tabconversation in generatorFromArray(window.document.getElementsByTagName("tabconversation")))
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+ for each (let browser in tabconversation.browsers)
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+ observer.removeArrowListener(browser);
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+}
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+
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+function install(data, reason) {}
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+function uninstall(data, reason) {}
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+
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+// vim: expandtab
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