The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/addon-sdk/source/lib/sdk/content/events.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,57 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +"use strict";
     1.9 +
    1.10 +module.metadata = {
    1.11 +  "stability": "experimental"
    1.12 +};
    1.13 +
    1.14 +const { Ci } = require("chrome");
    1.15 +const { open } = require("../event/dom");
    1.16 +const { observe } = require("../event/chrome");
    1.17 +const { filter, merge, map, expand } = require("../event/utils");
    1.18 +const { windows } = require("../window/utils");
    1.19 +const { events: windowEvents } = require("sdk/window/events");
    1.20 +
    1.21 +// Note: Please note that even though pagehide event is included
    1.22 +// it's not observable reliably since it's not always triggered
    1.23 +// when closing tabs. Implementation can be imrpoved once that
    1.24 +// event will be necessary.
    1.25 +let TYPES = ["DOMContentLoaded", "load", "pageshow", "pagehide"];
    1.26 +
    1.27 +let insert = observe("document-element-inserted");
    1.28 +let windowCreate = merge([
    1.29 +  observe("content-document-global-created"),
    1.30 +  observe("chrome-document-global-created")
    1.31 +]);
    1.32 +let create = map(windowCreate, function({target, data, type}) {
    1.33 +  return { target: target.document, type: type, data: data }
    1.34 +});
    1.35 +
    1.36 +function streamEventsFrom({document}) {
    1.37 +  // Map supported event types to a streams of those events on the given
    1.38 +  // `window` for the inserted document and than merge these streams into
    1.39 +  // single form stream off all window state change events.
    1.40 +  let stateChanges = TYPES.map(function(type) {
    1.41 +    return open(document, type, { capture: true });
    1.42 +  });
    1.43 +
    1.44 +  // Since load events on document occur for every loded resource
    1.45 +  return filter(merge(stateChanges), function({target}) {
    1.46 +    return target instanceof Ci.nsIDOMDocument
    1.47 +  })
    1.48 +}
    1.49 +exports.streamEventsFrom = streamEventsFrom;
    1.50 +
    1.51 +let opened = windows(null, { includePrivate: true });
    1.52 +let state = merge(opened.map(streamEventsFrom));
    1.53 +
    1.54 +
    1.55 +let futureReady = filter(windowEvents, function({type})
    1.56 +                                        type === "DOMContentLoaded");
    1.57 +let futureWindows = map(futureReady, function({target}) target);
    1.58 +let futureState = expand(futureWindows, streamEventsFrom);
    1.59 +
    1.60 +exports.events = merge([insert, create, state, futureState]);