Spatial Navigation Igniter

bootstrap.js

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. 
 * The Original Code is  mozilla.org code (Firefox 23)
 * The Initial Developer of the Original Code is mozilla.org.
*/
"use strict";

const { classes: Cc, interfaces: Ci, utils: Cu } = Components;

Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/SpatialNavigation.jsm");

/**
 *
 * bootstrapped addon interfaces
 *
 */
function startup(aData, aReason) {
  // Enable Spatial Navigation preference.
  Services.prefs.setBoolPref("snav.enabled", true);

  let windows = Services.wm.getEnumerator("navigator:browser");
  while (windows.hasMoreElements()) {
    let domWindow = windows.getNext().QueryInterface(Ci.nsIDOMWindow);
    DOMEventListener.init(domWindow);
  }

  Services.wm.addListener(WindowListener);
}

function shutdown(aData, aReason) {
  Services.wm.removeListener(WindowListener);

  // if the application is shutdown time, we don't have to call these step.
  if (aReason === APP_SHUTDOWN) {
    return;
  }

  let windows = Services.wm.getEnumerator("navigator:browser");
  while (windows.hasMoreElements()) {
    let domWindow = windows.getNext().QueryInterface(Ci.nsIDOMWindow);
    DOMEventListener.finalize(domWindow);
  }

  // XXX: Set default preference for to enable Spatial Navigation.
  Services.prefs.clearUserPref("snav.enabled");
}

function install(aData, aReason) {
}

function uninstall(aData, aReason) {
}

// nsIWindowMediatorListener
let WindowListener = {

  onOpenWindow : function (aXulWindow) {
    let domWindow = aXulWindow.QueryInterface(Ci.nsIInterfaceRequestor)
                    .getInterface(Ci.nsIDOMWindow);

    // Wait finish loading
    domWindow.addEventListener("load", function onLoad(aEvent) {
      domWindow.removeEventListener("load", onLoad, false);

      DOMEventListener.init(domWindow);
    }, false);
  },

  onCloseWindow : function (aXulWindow) {
    let domWindow = aXulWindow.QueryInterface(Ci.nsIInterfaceRequestor)
                    .getInterface(Ci.nsIDOMWindow);
    DOMEventListener.finalize(domWindow);
  },

  onWindowTitleChange : function (aWindow, aNewTitle) {}
};

let DOMEventListener = {

  init: function (aDomWindow) {
    let windowType = aDomWindow.document.
                      documentElement.getAttribute("windowtype");
    // If this isn't a browser window then abort setup.
    if (windowType !== "navigator:browser") {
      return;
    }

    let gBrowser = aDomWindow.gBrowser;

    // Enable Spatial Navigation.
    // because TabOpen event is not fired when opens browser window.
    let tabs = gBrowser.tabContainer.childNodes;
    for (let tab of tabs) {
      this.enableSpatialNavigation(tab);
    }

    gBrowser.tabContainer.addEventListener("TabOpen", this, false);
  },

  finalize: function (aDomWindow) {
    let gBrowser = aDomWindow.gBrowser;

    gBrowser.tabContainer.removeEventListener("TabOpen", this, false);
  },

  handleEvent: function (aEvent) {
    switch (aEvent.type) {
      case "TabOpen":
        this.onTabOpen(aEvent);
        break;
    }
  },

  onTabOpen: function (aEvent) {
    let tab = aEvent.target;
    this.enableSpatialNavigation(tab);
  },

  enableSpatialNavigation: function (aTab) {
    let browser = aTab.linkedBrowser;
    SpatialNavigation.init(browser);
  }
};

install.rdf

<?xml version="1.0"?>
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
<Description about="urn:mozilla:install-manifest">

  <!-- Extension Identifier -->
  <em:id>spatial_nav_igniter@saneyuki_s</em:id>
  <em:version>0.1</em:version>
  <em:type>2</em:type>
  <em:bootstrap>true</em:bootstrap>

  <!-- Metadata -->
  <em:name>Spatial Navigation Igniter</em:name>
  <em:description>This add-on ignite Spatial Navigation automatically.</em:description>
  <em:developer>saneyuki_s</em:developer>

  <!-- Target Application -->
  <em:targetApplication>
    <!-- Firefox -->
    <Description>
      <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
      <em:minVersion>27.0a1</em:minVersion>
      <em:maxVersion>*</em:maxVersion>
    </Description>
  </em:targetApplication>

</Description>
</RDF>