toolkit/content/aboutSupport.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/content/aboutSupport.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,629 @@
     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 +const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
     1.9 +
    1.10 +Cu.import("resource://gre/modules/XPCOMUtils.jsm");
    1.11 +Cu.import("resource://gre/modules/Services.jsm");
    1.12 +Cu.import("resource://gre/modules/Troubleshoot.jsm");
    1.13 +Cu.import("resource://gre/modules/ResetProfile.jsm");
    1.14 +
    1.15 +XPCOMUtils.defineLazyModuleGetter(this, "PluralForm",
    1.16 +                                  "resource://gre/modules/PluralForm.jsm");
    1.17 +
    1.18 +window.addEventListener("load", function onload(event) {
    1.19 +  try {
    1.20 +  window.removeEventListener("load", onload, false);
    1.21 +  Troubleshoot.snapshot(function (snapshot) {
    1.22 +    for (let prop in snapshotFormatters)
    1.23 +      snapshotFormatters[prop](snapshot[prop]);
    1.24 +  });
    1.25 +  populateResetBox();
    1.26 +  setupEventListeners();
    1.27 +  } catch (e) {
    1.28 +    Cu.reportError("stack of load error for about:support: " + e + ": " + e.stack);
    1.29 +  }
    1.30 +}, false);
    1.31 +
    1.32 +// Each property in this object corresponds to a property in Troubleshoot.jsm's
    1.33 +// snapshot data.  Each function is passed its property's corresponding data,
    1.34 +// and it's the function's job to update the page with it.
    1.35 +let snapshotFormatters = {
    1.36 +
    1.37 +  application: function application(data) {
    1.38 +    $("application-box").textContent = data.name;
    1.39 +    $("useragent-box").textContent = data.userAgent;
    1.40 +    $("supportLink").href = data.supportURL;
    1.41 +    let version = data.version;
    1.42 +    if (data.vendor)
    1.43 +      version += " (" + data.vendor + ")";
    1.44 +    $("version-box").textContent = version;
    1.45 +  },
    1.46 +
    1.47 +#ifdef MOZ_CRASHREPORTER
    1.48 +  crashes: function crashes(data) {
    1.49 +    let strings = stringBundle();
    1.50 +    let daysRange = Troubleshoot.kMaxCrashAge / (24 * 60 * 60 * 1000);
    1.51 +    $("crashes-title").textContent =
    1.52 +      PluralForm.get(daysRange, strings.GetStringFromName("crashesTitle"))
    1.53 +                .replace("#1", daysRange);
    1.54 +    let reportURL;
    1.55 +    try {
    1.56 +      reportURL = Services.prefs.getCharPref("breakpad.reportURL");
    1.57 +      // Ignore any non http/https urls
    1.58 +      if (!/^https?:/i.test(reportURL))
    1.59 +        reportURL = null;
    1.60 +    }
    1.61 +    catch (e) { }
    1.62 +    if (!reportURL) {
    1.63 +      $("crashes-noConfig").style.display = "block";
    1.64 +      $("crashes-noConfig").classList.remove("no-copy");
    1.65 +      return;
    1.66 +    }
    1.67 +    else {
    1.68 +      $("crashes-allReports").style.display = "block";
    1.69 +      $("crashes-allReports").classList.remove("no-copy");
    1.70 +    }
    1.71 +
    1.72 +    if (data.pending > 0) {
    1.73 +      $("crashes-allReportsWithPending").textContent =
    1.74 +        PluralForm.get(data.pending, strings.GetStringFromName("pendingReports"))
    1.75 +                  .replace("#1", data.pending);
    1.76 +    }
    1.77 +
    1.78 +    let dateNow = new Date();
    1.79 +    $.append($("crashes-tbody"), data.submitted.map(function (crash) {
    1.80 +      let date = new Date(crash.date);
    1.81 +      let timePassed = dateNow - date;
    1.82 +      let formattedDate;
    1.83 +      if (timePassed >= 24 * 60 * 60 * 1000)
    1.84 +      {
    1.85 +        let daysPassed = Math.round(timePassed / (24 * 60 * 60 * 1000));
    1.86 +        let daysPassedString = strings.GetStringFromName("crashesTimeDays");
    1.87 +        formattedDate = PluralForm.get(daysPassed, daysPassedString)
    1.88 +                                  .replace("#1", daysPassed);
    1.89 +      }
    1.90 +      else if (timePassed >= 60 * 60 * 1000)
    1.91 +      {
    1.92 +        let hoursPassed = Math.round(timePassed / (60 * 60 * 1000));
    1.93 +        let hoursPassedString = strings.GetStringFromName("crashesTimeHours");
    1.94 +        formattedDate = PluralForm.get(hoursPassed, hoursPassedString)
    1.95 +                                  .replace("#1", hoursPassed);
    1.96 +      }
    1.97 +      else
    1.98 +      {
    1.99 +        let minutesPassed = Math.max(Math.round(timePassed / (60 * 1000)), 1);
   1.100 +        let minutesPassedString = strings.GetStringFromName("crashesTimeMinutes");
   1.101 +        formattedDate = PluralForm.get(minutesPassed, minutesPassedString)
   1.102 +                                  .replace("#1", minutesPassed);
   1.103 +      }
   1.104 +      return $.new("tr", [
   1.105 +        $.new("td", [
   1.106 +          $.new("a", crash.id, null, {href : reportURL + crash.id})
   1.107 +        ]),
   1.108 +        $.new("td", formattedDate)
   1.109 +      ]);
   1.110 +    }));
   1.111 +  },
   1.112 +#endif
   1.113 +
   1.114 +  extensions: function extensions(data) {
   1.115 +    $.append($("extensions-tbody"), data.map(function (extension) {
   1.116 +      return $.new("tr", [
   1.117 +        $.new("td", extension.name),
   1.118 +        $.new("td", extension.version),
   1.119 +        $.new("td", extension.isActive),
   1.120 +        $.new("td", extension.id),
   1.121 +      ]);
   1.122 +    }));
   1.123 +  },
   1.124 +
   1.125 +  experiments: function experiments(data) {
   1.126 +    $.append($("experiments-tbody"), data.map(function (experiment) {
   1.127 +      return $.new("tr", [
   1.128 +        $.new("td", experiment.name),
   1.129 +        $.new("td", experiment.id),
   1.130 +        $.new("td", experiment.description),
   1.131 +        $.new("td", experiment.active),
   1.132 +        $.new("td", experiment.endDate),
   1.133 +        $.new("td", [
   1.134 +          $.new("a", experiment.detailURL, null, {href : experiment.detailURL,})
   1.135 +        ]),
   1.136 +      ]);
   1.137 +    }));
   1.138 +  },
   1.139 +
   1.140 +  modifiedPreferences: function modifiedPreferences(data) {
   1.141 +    $.append($("prefs-tbody"), sortedArrayFromObject(data).map(
   1.142 +      function ([name, value]) {
   1.143 +        return $.new("tr", [
   1.144 +          $.new("td", name, "pref-name"),
   1.145 +          // Very long preference values can cause users problems when they
   1.146 +          // copy and paste them into some text editors.  Long values generally
   1.147 +          // aren't useful anyway, so truncate them to a reasonable length.
   1.148 +          $.new("td", String(value).substr(0, 120), "pref-value"),
   1.149 +        ]);
   1.150 +      }
   1.151 +    ));
   1.152 +  },
   1.153 +
   1.154 +  graphics: function graphics(data) {
   1.155 +    // graphics-info-properties tbody
   1.156 +    if ("info" in data) {
   1.157 +      let trs = sortedArrayFromObject(data.info).map(function ([prop, val]) {
   1.158 +        return $.new("tr", [
   1.159 +          $.new("th", prop, "column"),
   1.160 +          $.new("td", String(val)),
   1.161 +        ]);
   1.162 +      });
   1.163 +      $.append($("graphics-info-properties"), trs);
   1.164 +      delete data.info;
   1.165 +    }
   1.166 +
   1.167 +    // graphics-failures-tbody tbody
   1.168 +    if ("failures" in data) {
   1.169 +      $.append($("graphics-failures-tbody"), data.failures.map(function (val) {
   1.170 +        return $.new("tr", [$.new("td", val)]);
   1.171 +      }));
   1.172 +      delete data.failures;
   1.173 +    }
   1.174 +
   1.175 +    // graphics-tbody tbody
   1.176 +
   1.177 +    function localizedMsg(msgArray) {
   1.178 +      let nameOrMsg = msgArray.shift();
   1.179 +      if (msgArray.length) {
   1.180 +        // formatStringFromName logs an NS_ASSERTION failure otherwise that says
   1.181 +        // "use GetStringFromName".  Lame.
   1.182 +        try {
   1.183 +          return strings.formatStringFromName(nameOrMsg, msgArray,
   1.184 +                                              msgArray.length);
   1.185 +        }
   1.186 +        catch (err) {
   1.187 +          // Throws if nameOrMsg is not a name in the bundle.  This shouldn't
   1.188 +          // actually happen though, since msgArray.length > 1 => nameOrMsg is a
   1.189 +          // name in the bundle, not a message, and the remaining msgArray
   1.190 +          // elements are parameters.
   1.191 +          return nameOrMsg;
   1.192 +        }
   1.193 +      }
   1.194 +      try {
   1.195 +        return strings.GetStringFromName(nameOrMsg);
   1.196 +      }
   1.197 +      catch (err) {
   1.198 +        // Throws if nameOrMsg is not a name in the bundle.
   1.199 +      }
   1.200 +      return nameOrMsg;
   1.201 +    }
   1.202 +
   1.203 +    let out = Object.create(data);
   1.204 +    let strings = stringBundle();
   1.205 +
   1.206 +    out.acceleratedWindows =
   1.207 +      data.numAcceleratedWindows + "/" + data.numTotalWindows;
   1.208 +    if (data.windowLayerManagerType)
   1.209 +      out.acceleratedWindows += " " + data.windowLayerManagerType;
   1.210 +    if (data.windowLayerManagerRemote)
   1.211 +      out.acceleratedWindows += " (OMTC)";
   1.212 +    if (data.numAcceleratedWindowsMessage)
   1.213 +      out.acceleratedWindows +=
   1.214 +        " " + localizedMsg(data.numAcceleratedWindowsMessage);
   1.215 +    delete data.numAcceleratedWindows;
   1.216 +    delete data.numTotalWindows;
   1.217 +    delete data.windowLayerManagerType;
   1.218 +    delete data.numAcceleratedWindowsMessage;
   1.219 +
   1.220 +    if ("direct2DEnabledMessage" in data) {
   1.221 +      out.direct2DEnabled = localizedMsg(data.direct2DEnabledMessage);
   1.222 +      delete data.direct2DEnabledMessage;
   1.223 +      delete data.direct2DEnabled;
   1.224 +    }
   1.225 +
   1.226 +    if ("directWriteEnabled" in data) {
   1.227 +      out.directWriteEnabled = data.directWriteEnabled;
   1.228 +      if ("directWriteVersion" in data)
   1.229 +        out.directWriteEnabled += " (" + data.directWriteVersion + ")";
   1.230 +      delete data.directWriteEnabled;
   1.231 +      delete data.directWriteVersion;
   1.232 +    }
   1.233 +
   1.234 +    if ("webglRendererMessage" in data) {
   1.235 +      out.webglRenderer = localizedMsg(data.webglRendererMessage);
   1.236 +      delete data.webglRendererMessage;
   1.237 +      delete data.webglRenderer;
   1.238 +    }
   1.239 +
   1.240 +    let localizedOut = {};
   1.241 +    for (let prop in out) {
   1.242 +      let val = out[prop];
   1.243 +      if (typeof(val) == "string" && !val)
   1.244 +        // Ignore properties that are empty strings.
   1.245 +        continue;
   1.246 +      try {
   1.247 +        var localizedName = strings.GetStringFromName(prop);
   1.248 +      }
   1.249 +      catch (err) {
   1.250 +        // This shouldn't happen, but if there's a reported graphics property
   1.251 +        // that isn't in the string bundle, don't let it break the page.
   1.252 +        localizedName = prop;
   1.253 +      }
   1.254 +      localizedOut[localizedName] = val;
   1.255 +    }
   1.256 +    let trs = sortedArrayFromObject(localizedOut).map(function ([prop, val]) {
   1.257 +      return $.new("tr", [
   1.258 +        $.new("th", prop, "column"),
   1.259 +        $.new("td", val),
   1.260 +      ]);
   1.261 +    });
   1.262 +    $.append($("graphics-tbody"), trs);
   1.263 +  },
   1.264 +
   1.265 +  javaScript: function javaScript(data) {
   1.266 +    $("javascript-incremental-gc").textContent = data.incrementalGCEnabled;
   1.267 +  },
   1.268 +
   1.269 +  accessibility: function accessibility(data) {
   1.270 +    $("a11y-activated").textContent = data.isActive;
   1.271 +    $("a11y-force-disabled").textContent = data.forceDisabled || 0;
   1.272 +  },
   1.273 +
   1.274 +  libraryVersions: function libraryVersions(data) {
   1.275 +    let strings = stringBundle();
   1.276 +    let trs = [
   1.277 +      $.new("tr", [
   1.278 +        $.new("th", ""),
   1.279 +        $.new("th", strings.GetStringFromName("minLibVersions")),
   1.280 +        $.new("th", strings.GetStringFromName("loadedLibVersions")),
   1.281 +      ])
   1.282 +    ];
   1.283 +    sortedArrayFromObject(data).forEach(
   1.284 +      function ([name, val]) {
   1.285 +        trs.push($.new("tr", [
   1.286 +          $.new("td", name),
   1.287 +          $.new("td", val.minVersion),
   1.288 +          $.new("td", val.version),
   1.289 +        ]));
   1.290 +      }
   1.291 +    );
   1.292 +    $.append($("libversions-tbody"), trs);
   1.293 +  },
   1.294 +
   1.295 +  userJS: function userJS(data) {
   1.296 +    if (!data.exists)
   1.297 +      return;
   1.298 +    let userJSFile = Services.dirsvc.get("PrefD", Ci.nsIFile);
   1.299 +    userJSFile.append("user.js");
   1.300 +    $("prefs-user-js-link").href = Services.io.newFileURI(userJSFile).spec;
   1.301 +    $("prefs-user-js-section").style.display = "";
   1.302 +    // Clear the no-copy class
   1.303 +    $("prefs-user-js-section").className = "";
   1.304 +  },
   1.305 +};
   1.306 +
   1.307 +let $ = document.getElementById.bind(document);
   1.308 +
   1.309 +$.new = function $_new(tag, textContentOrChildren, className, attributes) {
   1.310 +  let elt = document.createElement(tag);
   1.311 +  if (className)
   1.312 +    elt.className = className;
   1.313 +  if (attributes) {
   1.314 +    for (let attrName in attributes)
   1.315 +      elt.setAttribute(attrName, attributes[attrName]);
   1.316 +  }
   1.317 +  if (Array.isArray(textContentOrChildren))
   1.318 +    this.append(elt, textContentOrChildren);
   1.319 +  else
   1.320 +    elt.textContent = String(textContentOrChildren);
   1.321 +  return elt;
   1.322 +};
   1.323 +
   1.324 +$.append = function $_append(parent, children) {
   1.325 +  children.forEach(function (c) parent.appendChild(c));
   1.326 +};
   1.327 +
   1.328 +function stringBundle() {
   1.329 +  return Services.strings.createBundle(
   1.330 +           "chrome://global/locale/aboutSupport.properties");
   1.331 +}
   1.332 +
   1.333 +function sortedArrayFromObject(obj) {
   1.334 +  let tuples = [];
   1.335 +  for (let prop in obj)
   1.336 +    tuples.push([prop, obj[prop]]);
   1.337 +  tuples.sort(function ([prop1, v1], [prop2, v2]) prop1.localeCompare(prop2));
   1.338 +  return tuples;
   1.339 +}
   1.340 +
   1.341 +function copyRawDataToClipboard(button) {
   1.342 +  if (button)
   1.343 +    button.disabled = true;
   1.344 +  try {
   1.345 +    Troubleshoot.snapshot(function (snapshot) {
   1.346 +      if (button)
   1.347 +        button.disabled = false;
   1.348 +      let str = Cc["@mozilla.org/supports-string;1"].
   1.349 +                createInstance(Ci.nsISupportsString);
   1.350 +      str.data = JSON.stringify(snapshot, undefined, 2);
   1.351 +      let transferable = Cc["@mozilla.org/widget/transferable;1"].
   1.352 +                         createInstance(Ci.nsITransferable);
   1.353 +      transferable.init(getLoadContext());
   1.354 +      transferable.addDataFlavor("text/unicode");
   1.355 +      transferable.setTransferData("text/unicode", str, str.data.length * 2);
   1.356 +      Cc["@mozilla.org/widget/clipboard;1"].
   1.357 +        getService(Ci.nsIClipboard).
   1.358 +        setData(transferable, null, Ci.nsIClipboard.kGlobalClipboard);
   1.359 +#ifdef ANDROID
   1.360 +      // Present a toast notification.
   1.361 +      let message = {
   1.362 +        type: "Toast:Show",
   1.363 +        message: stringBundle().GetStringFromName("rawDataCopied"),
   1.364 +        duration: "short"
   1.365 +      };
   1.366 +      Services.androidBridge.handleGeckoMessage(message);
   1.367 +#endif
   1.368 +    });
   1.369 +  }
   1.370 +  catch (err) {
   1.371 +    if (button)
   1.372 +      button.disabled = false;
   1.373 +    throw err;
   1.374 +  }
   1.375 +}
   1.376 +
   1.377 +function getLoadContext() {
   1.378 +  return window.QueryInterface(Ci.nsIInterfaceRequestor)
   1.379 +               .getInterface(Ci.nsIWebNavigation)
   1.380 +               .QueryInterface(Ci.nsILoadContext);
   1.381 +}
   1.382 +
   1.383 +function copyContentsToClipboard() {
   1.384 +  // Get the HTML and text representations for the important part of the page.
   1.385 +  let contentsDiv = $("contents");
   1.386 +  let dataHtml = contentsDiv.innerHTML;
   1.387 +  let dataText = createTextForElement(contentsDiv);
   1.388 +
   1.389 +  // We can't use plain strings, we have to use nsSupportsString.
   1.390 +  let supportsStringClass = Cc["@mozilla.org/supports-string;1"];
   1.391 +  let ssHtml = supportsStringClass.createInstance(Ci.nsISupportsString);
   1.392 +  let ssText = supportsStringClass.createInstance(Ci.nsISupportsString);
   1.393 +
   1.394 +  let transferable = Cc["@mozilla.org/widget/transferable;1"]
   1.395 +                       .createInstance(Ci.nsITransferable);
   1.396 +  transferable.init(getLoadContext());
   1.397 +
   1.398 +  // Add the HTML flavor.
   1.399 +  transferable.addDataFlavor("text/html");
   1.400 +  ssHtml.data = dataHtml;
   1.401 +  transferable.setTransferData("text/html", ssHtml, dataHtml.length * 2);
   1.402 +
   1.403 +  // Add the plain text flavor.
   1.404 +  transferable.addDataFlavor("text/unicode");
   1.405 +  ssText.data = dataText;
   1.406 +  transferable.setTransferData("text/unicode", ssText, dataText.length * 2);
   1.407 +
   1.408 +  // Store the data into the clipboard.
   1.409 +  let clipboard = Cc["@mozilla.org/widget/clipboard;1"]
   1.410 +                    .getService(Ci.nsIClipboard);
   1.411 +  clipboard.setData(transferable, null, clipboard.kGlobalClipboard);
   1.412 +
   1.413 +#ifdef ANDROID
   1.414 +  // Present a toast notification.
   1.415 +  let message = {
   1.416 +    type: "Toast:Show",
   1.417 +    message: stringBundle().GetStringFromName("textCopied"),
   1.418 +    duration: "short"
   1.419 +  };
   1.420 +  Services.androidBridge.handleGeckoMessage(message);
   1.421 +#endif
   1.422 +}
   1.423 +
   1.424 +// Return the plain text representation of an element.  Do a little bit
   1.425 +// of pretty-printing to make it human-readable.
   1.426 +function createTextForElement(elem) {
   1.427 +  let serializer = new Serializer();
   1.428 +  let text = serializer.serialize(elem);
   1.429 +
   1.430 +  // Actual CR/LF pairs are needed for some Windows text editors.
   1.431 +#ifdef XP_WIN
   1.432 +  text = text.replace(/\n/g, "\r\n");
   1.433 +#endif
   1.434 +
   1.435 +  return text;
   1.436 +}
   1.437 +
   1.438 +function Serializer() {
   1.439 +}
   1.440 +
   1.441 +Serializer.prototype = {
   1.442 +
   1.443 +  serialize: function (rootElem) {
   1.444 +    this._lines = [];
   1.445 +    this._startNewLine();
   1.446 +    this._serializeElement(rootElem);
   1.447 +    this._startNewLine();
   1.448 +    return this._lines.join("\n").trim() + "\n";
   1.449 +  },
   1.450 +
   1.451 +  // The current line is always the line that writing will start at next.  When
   1.452 +  // an element is serialized, the current line is updated to be the line at
   1.453 +  // which the next element should be written.
   1.454 +  get _currentLine() {
   1.455 +    return this._lines.length ? this._lines[this._lines.length - 1] : null;
   1.456 +  },
   1.457 +
   1.458 +  set _currentLine(val) {
   1.459 +    return this._lines[this._lines.length - 1] = val;
   1.460 +  },
   1.461 +
   1.462 +  _serializeElement: function (elem) {
   1.463 +    if (this._ignoreElement(elem))
   1.464 +      return;
   1.465 +
   1.466 +    // table
   1.467 +    if (elem.localName == "table") {
   1.468 +      this._serializeTable(elem);
   1.469 +      return;
   1.470 +    }
   1.471 +
   1.472 +    // all other elements
   1.473 +
   1.474 +    let hasText = false;
   1.475 +    for (let child of elem.childNodes) {
   1.476 +      if (child.nodeType == Node.TEXT_NODE) {
   1.477 +        let text = this._nodeText(child);
   1.478 +        this._appendText(text);
   1.479 +        hasText = hasText || !!text.trim();
   1.480 +      }
   1.481 +      else if (child.nodeType == Node.ELEMENT_NODE)
   1.482 +        this._serializeElement(child);
   1.483 +    }
   1.484 +
   1.485 +    // For headings, draw a "line" underneath them so they stand out.
   1.486 +    if (/^h[0-9]+$/.test(elem.localName)) {
   1.487 +      let headerText = (this._currentLine || "").trim();
   1.488 +      if (headerText) {
   1.489 +        this._startNewLine();
   1.490 +        this._appendText("-".repeat(headerText.length));
   1.491 +      }
   1.492 +    }
   1.493 +
   1.494 +    // Add a blank line underneath block elements but only if they contain text.
   1.495 +    if (hasText) {
   1.496 +      let display = window.getComputedStyle(elem).getPropertyValue("display");
   1.497 +      if (display == "block") {
   1.498 +        this._startNewLine();
   1.499 +        this._startNewLine();
   1.500 +      }
   1.501 +    }
   1.502 +  },
   1.503 +
   1.504 +  _startNewLine: function (lines) {
   1.505 +    let currLine = this._currentLine;
   1.506 +    if (currLine) {
   1.507 +      // The current line is not empty.  Trim it.
   1.508 +      this._currentLine = currLine.trim();
   1.509 +      if (!this._currentLine)
   1.510 +        // The current line became empty.  Discard it.
   1.511 +        this._lines.pop();
   1.512 +    }
   1.513 +    this._lines.push("");
   1.514 +  },
   1.515 +
   1.516 +  _appendText: function (text, lines) {
   1.517 +    this._currentLine += text;
   1.518 +  },
   1.519 +
   1.520 +  _serializeTable: function (table) {
   1.521 +    // Collect the table's column headings if in fact there are any.  First
   1.522 +    // check thead.  If there's no thead, check the first tr.
   1.523 +    let colHeadings = {};
   1.524 +    let tableHeadingElem = table.querySelector("thead");
   1.525 +    if (!tableHeadingElem)
   1.526 +      tableHeadingElem = table.querySelector("tr");
   1.527 +    if (tableHeadingElem) {
   1.528 +      let tableHeadingCols = tableHeadingElem.querySelectorAll("th,td");
   1.529 +      // If there's a contiguous run of th's in the children starting from the
   1.530 +      // rightmost child, then consider them to be column headings.
   1.531 +      for (let i = tableHeadingCols.length - 1; i >= 0; i--) {
   1.532 +        if (tableHeadingCols[i].localName != "th")
   1.533 +          break;
   1.534 +        colHeadings[i] = this._nodeText(tableHeadingCols[i]).trim();
   1.535 +      }
   1.536 +    }
   1.537 +    let hasColHeadings = Object.keys(colHeadings).length > 0;
   1.538 +    if (!hasColHeadings)
   1.539 +      tableHeadingElem = null;
   1.540 +
   1.541 +    let trs = table.querySelectorAll("table > tr, tbody > tr");
   1.542 +    let startRow =
   1.543 +      tableHeadingElem && tableHeadingElem.localName == "tr" ? 1 : 0;
   1.544 +
   1.545 +    if (startRow >= trs.length)
   1.546 +      // The table's empty.
   1.547 +      return;
   1.548 +
   1.549 +    if (hasColHeadings && !this._ignoreElement(tableHeadingElem)) {
   1.550 +      // Use column headings.  Print each tr as a multi-line chunk like:
   1.551 +      //   Heading 1: Column 1 value
   1.552 +      //   Heading 2: Column 2 value
   1.553 +      for (let i = startRow; i < trs.length; i++) {
   1.554 +        if (this._ignoreElement(trs[i]))
   1.555 +          continue;
   1.556 +        let children = trs[i].querySelectorAll("td");
   1.557 +        for (let j = 0; j < children.length; j++) {
   1.558 +          let text = "";
   1.559 +          if (colHeadings[j])
   1.560 +            text += colHeadings[j] + ": ";
   1.561 +          text += this._nodeText(children[j]).trim();
   1.562 +          this._appendText(text);
   1.563 +          this._startNewLine();
   1.564 +        }
   1.565 +        this._startNewLine();
   1.566 +      }
   1.567 +      return;
   1.568 +    }
   1.569 +
   1.570 +    // Don't use column headings.  Assume the table has only two columns and
   1.571 +    // print each tr in a single line like:
   1.572 +    //   Column 1 value: Column 2 value
   1.573 +    for (let i = startRow; i < trs.length; i++) {
   1.574 +      if (this._ignoreElement(trs[i]))
   1.575 +        continue;
   1.576 +      let children = trs[i].querySelectorAll("th,td");
   1.577 +      let rowHeading = this._nodeText(children[0]).trim();
   1.578 +      this._appendText(rowHeading + ": " + this._nodeText(children[1]).trim());
   1.579 +      this._startNewLine();
   1.580 +    }
   1.581 +    this._startNewLine();
   1.582 +  },
   1.583 +
   1.584 +  _ignoreElement: function (elem) {
   1.585 +    return elem.classList.contains("no-copy");
   1.586 +  },
   1.587 +
   1.588 +  _nodeText: function (node) {
   1.589 +    return node.textContent.replace(/\s+/g, " ");
   1.590 +  },
   1.591 +};
   1.592 +
   1.593 +function openProfileDirectory() {
   1.594 +  // Get the profile directory.
   1.595 +  let currProfD = Services.dirsvc.get("ProfD", Ci.nsIFile);
   1.596 +  let profileDir = currProfD.path;
   1.597 +
   1.598 +  // Show the profile directory.
   1.599 +  let nsLocalFile = Components.Constructor("@mozilla.org/file/local;1",
   1.600 +                                           "nsILocalFile", "initWithPath");
   1.601 +  new nsLocalFile(profileDir).reveal();
   1.602 +}
   1.603 +
   1.604 +/**
   1.605 + * Profile reset is only supported for the default profile if the appropriate migrator exists.
   1.606 + */
   1.607 +function populateResetBox() {
   1.608 +  if (ResetProfile.resetSupported())
   1.609 +    $("reset-box").style.visibility = "visible";
   1.610 +}
   1.611 +
   1.612 +/**
   1.613 + * Set up event listeners for buttons.
   1.614 + */
   1.615 +function setupEventListeners(){
   1.616 +  $("show-update-history-button").addEventListener("click", function (event) {
   1.617 +    var prompter = Cc["@mozilla.org/updates/update-prompt;1"].createInstance(Ci.nsIUpdatePrompt);
   1.618 +      prompter.showUpdateHistory(window);
   1.619 +  });
   1.620 +  $("reset-box-button").addEventListener("click", function (event){
   1.621 +    ResetProfile.openConfirmationDialog(window);
   1.622 +  });
   1.623 +  $("copy-raw-data-to-clipboard").addEventListener("click", function (event){
   1.624 +    copyRawDataToClipboard(this);
   1.625 +  });
   1.626 +  $("copy-to-clipboard").addEventListener("click", function (event){
   1.627 +    copyContentsToClipboard();
   1.628 +  });
   1.629 +  $("profile-dir-button").addEventListener("click", function (event){
   1.630 +    openProfileDirectory();
   1.631 +  });
   1.632 +}

mercurial