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/l10n/html.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,111 @@
     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 +"use strict";
     1.8 +
     1.9 +module.metadata = {
    1.10 +  "stability": "unstable"
    1.11 +};
    1.12 +
    1.13 +const { Ci, Cu } = require("chrome");
    1.14 +const events = require("../system/events");
    1.15 +const core = require("./core");
    1.16 +
    1.17 +const assetsURI = require('../self').data.url();
    1.18 +const { Services } = Cu.import("resource://gre/modules/Services.jsm");
    1.19 +
    1.20 +const hideContentStyle = "data:text/css,:root {visibility: hidden !important;}";
    1.21 +const hideSheetUri = Services.io.newURI(hideContentStyle, null, null);
    1.22 +
    1.23 +// Taken from Gaia:
    1.24 +// https://github.com/andreasgal/gaia/blob/04fde2640a7f40314643016a5a6c98bf3755f5fd/webapi.js#L1470
    1.25 +function translateElement(element) {
    1.26 +  element = element || document;
    1.27 +
    1.28 +  // check all translatable children (= w/ a `data-l10n-id' attribute)
    1.29 +  var children = element.querySelectorAll('*[data-l10n-id]');
    1.30 +  var elementCount = children.length;
    1.31 +  for (var i = 0; i < elementCount; i++) {
    1.32 +    var child = children[i];
    1.33 +
    1.34 +    // translate the child
    1.35 +    var key = child.dataset.l10nId;
    1.36 +    var data = core.get(key);
    1.37 +    if (data)
    1.38 +      child.textContent = data;
    1.39 +  }
    1.40 +}
    1.41 +exports.translateElement = translateElement;
    1.42 +
    1.43 +function onDocumentReady2Translate(event) {
    1.44 +  let document = event.target;
    1.45 +  document.removeEventListener("DOMContentLoaded", onDocumentReady2Translate,
    1.46 +                               false);
    1.47 +
    1.48 +  translateElement(document);
    1.49 +
    1.50 +  try {
    1.51 +    // Finally display document when we finished replacing all text content
    1.52 +    if (document.defaultView) {
    1.53 +      let winUtils = document.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
    1.54 +                                         .getInterface(Ci.nsIDOMWindowUtils);
    1.55 +      winUtils.removeSheet(hideSheetUri, winUtils.USER_SHEET);
    1.56 +    }
    1.57 +  }
    1.58 +  catch(e) {
    1.59 +    console.exception(e);
    1.60 +  }
    1.61 +}
    1.62 +
    1.63 +function onContentWindow(event) {
    1.64 +  let document = event.subject;
    1.65 +
    1.66 +  // Accept only HTML documents
    1.67 +  if (!(document instanceof Ci.nsIDOMHTMLDocument))
    1.68 +    return;
    1.69 +
    1.70 +  // Bug 769483: data:URI documents instanciated with nsIDOMParser
    1.71 +  // have a null `location` attribute at this time
    1.72 +  if (!document.location)
    1.73 +    return;
    1.74 +
    1.75 +  // Accept only document from this addon
    1.76 +  if (document.location.href.indexOf(assetsURI) !== 0)
    1.77 +    return;
    1.78 +
    1.79 +  try {
    1.80 +    // First hide content of the document in order to have content blinking
    1.81 +    // between untranslated and translated states
    1.82 +    let winUtils = document.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
    1.83 +                                       .getInterface(Ci.nsIDOMWindowUtils);
    1.84 +    winUtils.loadSheet(hideSheetUri, winUtils.USER_SHEET);
    1.85 +  }
    1.86 +  catch(e) {
    1.87 +    console.exception(e);
    1.88 +  }
    1.89 +  // Wait for DOM tree to be built before applying localization
    1.90 +  document.addEventListener("DOMContentLoaded", onDocumentReady2Translate,
    1.91 +                            false);
    1.92 +}
    1.93 +
    1.94 +// Listen to creation of content documents in order to translate them as soon
    1.95 +// as possible in their loading process
    1.96 +const ON_CONTENT = "document-element-inserted";
    1.97 +let enabled = false;
    1.98 +function enable() {
    1.99 +  if (!enabled) {
   1.100 +    events.on(ON_CONTENT, onContentWindow);
   1.101 +    enabled = true;
   1.102 +  }
   1.103 +}
   1.104 +exports.enable = enable;
   1.105 +
   1.106 +function disable() {
   1.107 +  if (enabled) {
   1.108 +    events.off(ON_CONTENT, onContentWindow);
   1.109 +    enabled = false;
   1.110 +  }
   1.111 +}
   1.112 +exports.disable = disable;
   1.113 +
   1.114 +require("sdk/system/unload").when(disable);