Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1172 insertions, 0 deletions

diff --git a/browser/base/content/pageinfo/pageInfo.js b/browser/base/content/pageinfo/pageInfo.js
new file mode 100644
index 0000000000..e3339afdda
--- /dev/null
+++ b/browser/base/content/pageinfo/pageInfo.js
@@ -0,0 +1,1172 @@
+/* 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/. */
+
+/* import-globals-from /toolkit/content/globalOverlay.js */
+/* import-globals-from /toolkit/content/contentAreaUtils.js */
+/* import-globals-from /toolkit/content/treeUtils.js */
+/* import-globals-from ../utilityOverlay.js */
+/* import-globals-from permissions.js */
+/* import-globals-from security.js */
+
+ChromeUtils.defineESModuleGetters(this, {
+  E10SUtils: "resource://gre/modules/E10SUtils.sys.mjs",
+});
+
+// Inherit color scheme overrides from parent window. This is to inherit the
+// color scheme of dark themed PBM windows.
+{
+  let openerColorSchemeOverride =
+    window.opener?.browsingContext?.top.prefersColorSchemeOverride;
+  if (
+    openerColorSchemeOverride &&
+    window.browsingContext == window.browsingContext.top
+  ) {
+    window.browsingContext.prefersColorSchemeOverride =
+      openerColorSchemeOverride;
+  }
+}
+
+// define a js object to implement nsITreeView
+function pageInfoTreeView(treeid, copycol) {
+  // copycol is the index number for the column that we want to add to
+  // the copy-n-paste buffer when the user hits accel-c
+  this.treeid = treeid;
+  this.copycol = copycol;
+  this.rows = 0;
+  this.tree = null;
+  this.data = [];
+  this.selection = null;
+  this.sortcol = -1;
+  this.sortdir = false;
+}
+
+pageInfoTreeView.prototype = {
+  set rowCount(c) {
+    throw new Error("rowCount is a readonly property");
+  },
+  get rowCount() {
+    return this.rows;
+  },
+
+  setTree(tree) {
+    this.tree = tree;
+  },
+
+  getCellText(row, column) {
+    // row can be null, but js arrays are 0-indexed.
+    // colidx cannot be null, but can be larger than the number
+    // of columns in the array. In this case it's the fault of
+    // whoever typoed while calling this function.
+    return this.data[row][column.index] || "";
+  },
+
+  setCellValue(row, column, value) {},
+
+  setCellText(row, column, value) {
+    this.data[row][column.index] = value;
+  },
+
+  addRow(row) {
+    this.rows = this.data.push(row);
+    this.rowCountChanged(this.rows - 1, 1);
+    if (this.selection.count == 0 && this.rowCount && !gImageElement) {
+      this.selection.select(0);
+    }
+  },
+
+  addRows(rows) {
+    for (let row of rows) {
+      this.addRow(row);
+    }
+  },
+
+  rowCountChanged(index, count) {
+    this.tree.rowCountChanged(index, count);
+  },
+
+  invalidate() {
+    this.tree.invalidate();
+  },
+
+  clear() {
+    if (this.tree) {
+      this.tree.rowCountChanged(0, -this.rows);
+    }
+    this.rows = 0;
+    this.data = [];
+  },
+
+  onPageMediaSort(columnname) {
+    var tree = document.getElementById(this.treeid);
+    var treecol = tree.columns.getNamedColumn(columnname);
+
+    this.sortdir = gTreeUtils.sort(
+      tree,
+      this,
+      this.data,
+      treecol.index,
+      function textComparator(a, b) {
+        return (a || "").toLowerCase().localeCompare((b || "").toLowerCase());
+      },
+      this.sortcol,
+      this.sortdir
+    );
+
+    for (let col of tree.columns) {
+      col.element.removeAttribute("sortActive");
+      col.element.removeAttribute("sortDirection");
+    }
+    treecol.element.setAttribute("sortActive", "true");
+    treecol.element.setAttribute(
+      "sortDirection",
+      this.sortdir ? "ascending" : "descending"
+    );
+
+    this.sortcol = treecol.index;
+  },
+
+  getRowProperties(row) {
+    return "";
+  },
+  getCellProperties(row, column) {
+    return "";
+  },
+  getColumnProperties(column) {
+    return "";
+  },
+  isContainer(index) {
+    return false;
+  },
+  isContainerOpen(index) {
+    return false;
+  },
+  isSeparator(index) {
+    return false;
+  },
+  isSorted() {
+    return this.sortcol > -1;
+  },
+  canDrop(index, orientation) {
+    return false;
+  },
+  drop(row, orientation) {
+    return false;
+  },
+  getParentIndex(index) {
+    return 0;
+  },
+  hasNextSibling(index, after) {
+    return false;
+  },
+  getLevel(index) {
+    return 0;
+  },
+  getImageSrc(row, column) {},
+  getCellValue(row, column) {
+    let col = column != null ? column : this.copycol;
+    return row < 0 || col < 0 ? "" : this.data[row][col] || "";
+  },
+  toggleOpenState(index) {},
+  cycleHeader(col) {},
+  selectionChanged() {},
+  cycleCell(row, column) {},
+  isEditable(row, column) {
+    return false;
+  },
+};
+
+// mmm, yummy. global variables.
+var gDocInfo = null;
+var gImageElement = null;
+
+// column number to help using the data array
+const COL_IMAGE_ADDRESS = 0;
+const COL_IMAGE_TYPE = 1;
+const COL_IMAGE_SIZE = 2;
+const COL_IMAGE_ALT = 3;
+const COL_IMAGE_COUNT = 4;
+const COL_IMAGE_NODE = 5;
+const COL_IMAGE_BG = 6;
+
+// column number to copy from, second argument to pageInfoTreeView's constructor
+const COPYCOL_NONE = -1;
+const COPYCOL_META_CONTENT = 1;
+const COPYCOL_IMAGE = COL_IMAGE_ADDRESS;
+
+// one nsITreeView for each tree in the window
+var gMetaView = new pageInfoTreeView("metatree", COPYCOL_META_CONTENT);
+var gImageView = new pageInfoTreeView("imagetree", COPYCOL_IMAGE);
+
+gImageView.getCellProperties = function (row, col) {
+  var data = gImageView.data[row];
+  var item = gImageView.data[row][COL_IMAGE_NODE];
+  var props = "";
+  if (
+    !checkProtocol(data) ||
+    HTMLEmbedElement.isInstance(item) ||
+    (HTMLObjectElement.isInstance(item) && !item.type.startsWith("image/"))
+  ) {
+    props += "broken";
+  }
+
+  if (col.element.id == "image-address") {
+    props += " ltr";
+  }
+
+  return props;
+};
+
+gImageView.onPageMediaSort = function (columnname) {
+  var tree = document.getElementById(this.treeid);
+  var treecol = tree.columns.getNamedColumn(columnname);
+
+  var comparator;
+  var index = treecol.index;
+  if (index == COL_IMAGE_SIZE || index == COL_IMAGE_COUNT) {
+    comparator = function numComparator(a, b) {
+      return a - b;
+    };
+  } else {
+    comparator = function textComparator(a, b) {
+      return (a || "").toLowerCase().localeCompare((b || "").toLowerCase());
+    };
+  }
+
+  this.sortdir = gTreeUtils.sort(
+    tree,
+    this,
+    this.data,
+    index,
+    comparator,
+    this.sortcol,
+    this.sortdir
+  );
+
+  for (let col of tree.columns) {
+    col.element.removeAttribute("sortActive");
+    col.element.removeAttribute("sortDirection");
+  }
+  treecol.element.setAttribute("sortActive", "true");
+  treecol.element.setAttribute(
+    "sortDirection",
+    this.sortdir ? "ascending" : "descending"
+  );
+
+  this.sortcol = index;
+};
+
+var gImageHash = {};
+
+// localized strings (will be filled in when the document is loaded)
+const MEDIA_STRINGS = {};
+let SIZE_UNKNOWN = "";
+let ALT_NOT_SET = "";
+
+// a number of services I'll need later
+// the cache services
+const nsICacheStorageService = Ci.nsICacheStorageService;
+const nsICacheStorage = Ci.nsICacheStorage;
+const cacheService = Cc[
+  "@mozilla.org/netwerk/cache-storage-service;1"
+].getService(nsICacheStorageService);
+
+var loadContextInfo = Services.loadContextInfo.fromLoadContext(
+  window.docShell.QueryInterface(Ci.nsILoadContext),
+  false
+);
+var diskStorage = cacheService.diskCacheStorage(loadContextInfo);
+
+const nsICookiePermission = Ci.nsICookiePermission;
+
+const nsICertificateDialogs = Ci.nsICertificateDialogs;
+const CERTIFICATEDIALOGS_CONTRACTID = "@mozilla.org/nsCertificateDialogs;1";
+
+// clipboard helper
+function getClipboardHelper() {
+  try {
+    return Cc["@mozilla.org/widget/clipboardhelper;1"].getService(
+      Ci.nsIClipboardHelper
+    );
+  } catch (e) {
+    // do nothing, later code will handle the error
+    return null;
+  }
+}
+const gClipboardHelper = getClipboardHelper();
+
+/* Called when PageInfo window is loaded.  Arguments are:
+ *  window.arguments[0] - (optional) an object consisting of
+ *                         - doc: (optional) document to use for source. if not provided,
+ *                                the calling window's document will be used
+ *                         - initialTab: (optional) id of the inital tab to display
+ */
+async function onLoadPageInfo() {
+  [
+    SIZE_UNKNOWN,
+    ALT_NOT_SET,
+    MEDIA_STRINGS.img,
+    MEDIA_STRINGS["bg-img"],
+    MEDIA_STRINGS["border-img"],
+    MEDIA_STRINGS["list-img"],
+    MEDIA_STRINGS.cursor,
+    MEDIA_STRINGS.object,
+    MEDIA_STRINGS.embed,
+    MEDIA_STRINGS.link,
+    MEDIA_STRINGS.input,
+    MEDIA_STRINGS.video,
+    MEDIA_STRINGS.audio,
+  ] = await document.l10n.formatValues([
+    "image-size-unknown",
+    "not-set-alternative-text",
+    "media-img",
+    "media-bg-img",
+    "media-border-img",
+    "media-list-img",
+    "media-cursor",
+    "media-object",
+    "media-embed",
+    "media-link",
+    "media-input",
+    "media-video",
+    "media-audio",
+  ]);
+
+  const args =
+    "arguments" in window &&
+    window.arguments.length >= 1 &&
+    window.arguments[0];
+
+  // Init media view
+  let imageTree = document.getElementById("imagetree");
+  imageTree.view = gImageView;
+
+  imageTree.controllers.appendController(treeController);
+
+  document
+    .getElementById("metatree")
+    .controllers.appendController(treeController);
+
+  // Select the requested tab, if the name is specified
+  await loadTab(args);
+
+  // Emit init event for tests
+  window.dispatchEvent(new Event("page-info-init"));
+}
+
+async function loadPageInfo(browsingContext, imageElement, browser) {
+  browser = browser || window.opener.gBrowser.selectedBrowser;
+  browsingContext = browsingContext || browser.browsingContext;
+
+  let actor = browsingContext.currentWindowGlobal.getActor("PageInfo");
+
+  let result = await actor.sendQuery("PageInfo:getData");
+  await onNonMediaPageInfoLoad(browser, result, imageElement);
+
+  // Here, we are walking the frame tree via BrowsingContexts to collect all of the
+  // media information for each frame
+  let contextsToVisit = [browsingContext];
+  while (contextsToVisit.length) {
+    let currContext = contextsToVisit.pop();
+    let global = currContext.currentWindowGlobal;
+
+    if (!global) {
+      continue;
+    }
+
+    let subframeActor = global.getActor("PageInfo");
+    let mediaResult = await subframeActor.sendQuery("PageInfo:getMediaData");
+    for (let item of mediaResult.mediaItems) {
+      addImage(item);
+    }
+    selectImage();
+    contextsToVisit.push(...currContext.children);
+  }
+}
+
+/**
+ * onNonMediaPageInfoLoad is responsible for populating the page info
+ * UI other than the media tab. This includes general, permissions, and security.
+ */
+async function onNonMediaPageInfoLoad(browser, pageInfoData, imageInfo) {
+  const { docInfo, windowInfo } = pageInfoData;
+  let uri = Services.io.newURI(docInfo.documentURIObject.spec);
+  let principal = docInfo.principal;
+  gDocInfo = docInfo;
+
+  gImageElement = imageInfo;
+  var titleFormat = windowInfo.isTopWindow
+    ? "page-info-page"
+    : "page-info-frame";
+  document.l10n.setAttributes(document.documentElement, titleFormat, {
+    website: docInfo.location,
+  });
+
+  document
+    .getElementById("main-window")
+    .setAttribute("relatedUrl", docInfo.location);
+
+  await makeGeneralTab(pageInfoData.metaViewRows, docInfo);
+  if (
+    uri.spec.startsWith("about:neterror") ||
+    uri.spec.startsWith("about:certerror") ||
+    uri.spec.startsWith("about:httpsonlyerror")
+  ) {
+    uri = browser.currentURI;
+    principal = Services.scriptSecurityManager.createContentPrincipal(
+      uri,
+      browser.contentPrincipal.originAttributes
+    );
+  }
+  onLoadPermission(uri, principal);
+  securityOnLoad(uri, windowInfo);
+}
+
+function resetPageInfo(args) {
+  /* Reset Meta tags part */
+  gMetaView.clear();
+
+  /* Reset Media tab */
+  var mediaTab = document.getElementById("mediaTab");
+  if (!mediaTab.hidden) {
+    mediaTab.hidden = true;
+  }
+  gImageView.clear();
+  gImageHash = {};
+
+  /* Rebuild the data */
+  loadTab(args);
+}
+
+function doHelpButton() {
+  const helpTopics = {
+    generalPanel: "pageinfo_general",
+    mediaPanel: "pageinfo_media",
+    permPanel: "pageinfo_permissions",
+    securityPanel: "pageinfo_security",
+  };
+
+  var deck = document.getElementById("mainDeck");
+  var helpdoc = helpTopics[deck.selectedPanel.id] || "pageinfo_general";
+  openHelpLink(helpdoc);
+}
+
+function showTab(id) {
+  var deck = document.getElementById("mainDeck");
+  var pagel = document.getElementById(id + "Panel");
+  deck.selectedPanel = pagel;
+}
+
+async function loadTab(args) {
+  // If the "View Image Info" context menu item was used, the related image
+  // element is provided as an argument. This can't be a background image.
+  let imageElement = args?.imageElement;
+  let browsingContext = args?.browsingContext;
+  let browser = args?.browser;
+
+  /* Load the page info */
+  await loadPageInfo(browsingContext, imageElement, browser);
+
+  var initialTab = args?.initialTab || "generalTab";
+  var radioGroup = document.getElementById("viewGroup");
+  initialTab =
+    document.getElementById(initialTab) ||
+    document.getElementById("generalTab");
+  radioGroup.selectedItem = initialTab;
+  radioGroup.selectedItem.doCommand();
+  radioGroup.focus({ focusVisible: false });
+}
+
+function openCacheEntry(key, cb) {
+  var checkCacheListener = {
+    onCacheEntryCheck(entry) {
+      return Ci.nsICacheEntryOpenCallback.ENTRY_WANTED;
+    },
+    onCacheEntryAvailable(entry, isNew, status) {
+      cb(entry);
+    },
+  };
+  diskStorage.asyncOpenURI(
+    Services.io.newURI(key),
+    "",
+    nsICacheStorage.OPEN_READONLY,
+    checkCacheListener
+  );
+}
+
+async function makeGeneralTab(metaViewRows, docInfo) {
+  // Sets Title in the General Tab, set to "Untitled Page" if no title found
+  if (docInfo.title) {
+    document.getElementById("titletext").value = docInfo.title;
+  } else {
+    document.l10n.setAttributes(
+      document.getElementById("titletext"),
+      "no-page-title"
+    );
+  }
+
+  var url = docInfo.location;
+  setItemValue("urltext", url);
+
+  var referrer = "referrer" in docInfo && docInfo.referrer;
+  setItemValue("refertext", referrer);
+
+  var mode =
+    "compatMode" in docInfo && docInfo.compatMode == "BackCompat"
+      ? "general-quirks-mode"
+      : "general-strict-mode";
+  document.l10n.setAttributes(document.getElementById("modetext"), mode);
+
+  // find out the mime type
+  setItemValue("typetext", docInfo.contentType);
+
+  // get the document characterset
+  var encoding = docInfo.characterSet;
+  document.getElementById("encodingtext").value = encoding;
+
+  let length = metaViewRows.length;
+
+  var metaGroup = document.getElementById("metaTags");
+  if (!length) {
+    metaGroup.style.visibility = "hidden";
+  } else {
+    document.l10n.setAttributes(
+      document.getElementById("metaTagsCaption"),
+      "general-meta-tags",
+      { tags: length }
+    );
+
+    document.getElementById("metatree").view = gMetaView;
+
+    // Add the metaViewRows onto the general tab's meta info tree.
+    gMetaView.addRows(metaViewRows);
+
+    metaGroup.style.removeProperty("visibility");
+  }
+
+  var modifiedText = formatDate(
+    docInfo.lastModified,
+    await document.l10n.formatValue("not-set-date")
+  );
+  document.getElementById("modifiedtext").value = modifiedText;
+
+  // get cache info
+  var cacheKey = url.replace(/#.*$/, "");
+  openCacheEntry(cacheKey, function (cacheEntry) {
+    if (cacheEntry) {
+      var pageSize = cacheEntry.dataSize;
+      var kbSize = formatNumber(Math.round((pageSize / 1024) * 100) / 100);
+      document.l10n.setAttributes(
+        document.getElementById("sizetext"),
+        "properties-general-size",
+        { kb: kbSize, bytes: formatNumber(pageSize) }
+      );
+    } else {
+      setItemValue("sizetext", null);
+    }
+  });
+}
+
+async function addImage({ url, type, alt, altNotProvided, element, isBg }) {
+  if (!url) {
+    return;
+  }
+
+  if (altNotProvided) {
+    alt = ALT_NOT_SET;
+  }
+
+  if (!gImageHash.hasOwnProperty(url)) {
+    gImageHash[url] = {};
+  }
+  if (!gImageHash[url].hasOwnProperty(type)) {
+    gImageHash[url][type] = {};
+  }
+  if (!gImageHash[url][type].hasOwnProperty(alt)) {
+    gImageHash[url][type][alt] = gImageView.data.length;
+    var row = [url, MEDIA_STRINGS[type], SIZE_UNKNOWN, alt, 1, element, isBg];
+    gImageView.addRow(row);
+
+    // Fill in cache data asynchronously
+    openCacheEntry(url, function (cacheEntry) {
+      // The data at row[2] corresponds to the data size.
+      if (cacheEntry) {
+        let value = cacheEntry.dataSize;
+        // If value is not -1 then replace with actual value, else keep as "unknown"
+        if (value != -1) {
+          let kbSize = Number(Math.round((value / 1024) * 100) / 100);
+          document.l10n
+            .formatValue("media-file-size", { size: kbSize })
+            .then(function (response) {
+              row[2] = response;
+              // Invalidate the row to trigger a repaint.
+              gImageView.tree.invalidateRow(gImageView.data.indexOf(row));
+            });
+        }
+      }
+    });
+
+    if (gImageView.data.length == 1) {
+      document.getElementById("mediaTab").hidden = false;
+    }
+  } else {
+    var i = gImageHash[url][type][alt];
+    gImageView.data[i][COL_IMAGE_COUNT]++;
+    // The same image can occur several times on the page at different sizes.
+    // If the "View Image Info" context menu item was used, ensure we select
+    // the correct element.
+    if (
+      !gImageView.data[i][COL_IMAGE_BG] &&
+      gImageElement &&
+      url == gImageElement.currentSrc &&
+      gImageElement.width == element.width &&
+      gImageElement.height == element.height &&
+      gImageElement.imageText == element.imageText
+    ) {
+      gImageView.data[i][COL_IMAGE_NODE] = element;
+    }
+  }
+}
+
+// Link Stuff
+function onBeginLinkDrag(event, urlField, descField) {
+  if (event.originalTarget.localName != "treechildren") {
+    return;
+  }
+
+  var tree = event.target;
+  if (tree.localName != "tree") {
+    tree = tree.parentNode;
+  }
+
+  var row = tree.getRowAt(event.clientX, event.clientY);
+  if (row == -1) {
+    return;
+  }
+
+  // Adding URL flavor
+  var col = tree.columns[urlField];
+  var url = tree.view.getCellText(row, col);
+  col = tree.columns[descField];
+  var desc = tree.view.getCellText(row, col);
+
+  var dt = event.dataTransfer;
+  dt.setData("text/x-moz-url", url + "\n" + desc);
+  dt.setData("text/url-list", url);
+  dt.setData("text/plain", url);
+}
+
+// Image Stuff
+function getSelectedRows(tree) {
+  var start = {};
+  var end = {};
+  var numRanges = tree.view.selection.getRangeCount();
+
+  var rowArray = [];
+  for (var t = 0; t < numRanges; t++) {
+    tree.view.selection.getRangeAt(t, start, end);
+    for (var v = start.value; v <= end.value; v++) {
+      rowArray.push(v);
+    }
+  }
+
+  return rowArray;
+}
+
+function getSelectedRow(tree) {
+  var rows = getSelectedRows(tree);
+  return rows.length == 1 ? rows[0] : -1;
+}
+
+async function selectSaveFolder(aCallback) {
+  const { nsIFile, nsIFilePicker } = Ci;
+  let titleText = await document.l10n.formatValue("media-select-folder");
+  let fp = Cc["@mozilla.org/filepicker;1"].createInstance(nsIFilePicker);
+  let fpCallback = function fpCallback_done(aResult) {
+    if (aResult == nsIFilePicker.returnOK) {
+      aCallback(fp.file.QueryInterface(nsIFile));
+    } else {
+      aCallback(null);
+    }
+  };
+
+  fp.init(window, titleText, nsIFilePicker.modeGetFolder);
+  fp.appendFilters(nsIFilePicker.filterAll);
+  try {
+    let initialDir = Services.prefs.getComplexValue(
+      "browser.download.dir",
+      nsIFile
+    );
+    if (initialDir) {
+      fp.displayDirectory = initialDir;
+    }
+  } catch (ex) {}
+  fp.open(fpCallback);
+}
+
+function saveMedia() {
+  var tree = document.getElementById("imagetree");
+  var rowArray = getSelectedRows(tree);
+  let ReferrerInfo = Components.Constructor(
+    "@mozilla.org/referrer-info;1",
+    "nsIReferrerInfo",
+    "init"
+  );
+
+  if (rowArray.length == 1) {
+    let row = rowArray[0];
+    let item = gImageView.data[row][COL_IMAGE_NODE];
+    let url = gImageView.data[row][COL_IMAGE_ADDRESS];
+
+    if (url) {
+      var titleKey = "SaveImageTitle";
+
+      if (HTMLVideoElement.isInstance(item)) {
+        titleKey = "SaveVideoTitle";
+      } else if (HTMLAudioElement.isInstance(item)) {
+        titleKey = "SaveAudioTitle";
+      }
+
+      // Bug 1565216 to evaluate passing referrer as item.baseURL
+      let referrerInfo = new ReferrerInfo(
+        Ci.nsIReferrerInfo.EMPTY,
+        true,
+        Services.io.newURI(item.baseURI)
+      );
+      let cookieJarSettings = E10SUtils.deserializeCookieJarSettings(
+        gDocInfo.cookieJarSettings
+      );
+      saveURL(
+        url,
+        null,
+        null,
+        titleKey,
+        false,
+        false,
+        referrerInfo,
+        cookieJarSettings,
+        null,
+        gDocInfo.isContentWindowPrivate,
+        gDocInfo.principal
+      );
+    }
+  } else {
+    selectSaveFolder(function (aDirectory) {
+      if (aDirectory) {
+        var saveAnImage = function (aURIString, aChosenData, aBaseURI) {
+          uniqueFile(aChosenData.file);
+
+          let referrerInfo = new ReferrerInfo(
+            Ci.nsIReferrerInfo.EMPTY,
+            true,
+            aBaseURI
+          );
+          let cookieJarSettings = E10SUtils.deserializeCookieJarSettings(
+            gDocInfo.cookieJarSettings
+          );
+          internalSave(
+            aURIString,
+            null,
+            null,
+            null,
+            null,
+            null,
+            false,
+            "SaveImageTitle",
+            aChosenData,
+            referrerInfo,
+            cookieJarSettings,
+            null,
+            false,
+            null,
+            gDocInfo.isContentWindowPrivate,
+            gDocInfo.principal
+          );
+        };
+
+        for (var i = 0; i < rowArray.length; i++) {
+          let v = rowArray[i];
+          let dir = aDirectory.clone();
+          let item = gImageView.data[v][COL_IMAGE_NODE];
+          let uriString = gImageView.data[v][COL_IMAGE_ADDRESS];
+          let uri = Services.io.newURI(uriString);
+
+          try {
+            uri.QueryInterface(Ci.nsIURL);
+            dir.append(decodeURIComponent(uri.fileName));
+          } catch (ex) {
+            // data:/blob: uris
+            // Supply a dummy filename, otherwise Download Manager
+            // will try to delete the base directory on failure.
+            dir.append(gImageView.data[v][COL_IMAGE_TYPE]);
+          }
+
+          if (i == 0) {
+            saveAnImage(
+              uriString,
+              new AutoChosen(dir, uri),
+              Services.io.newURI(item.baseURI)
+            );
+          } else {
+            // This delay is a hack which prevents the download manager
+            // from opening many times. See bug 377339.
+            setTimeout(
+              saveAnImage,
+              200,
+              uriString,
+              new AutoChosen(dir, uri),
+              Services.io.newURI(item.baseURI)
+            );
+          }
+        }
+      }
+    });
+  }
+}
+
+function onImageSelect() {
+  var previewBox = document.getElementById("mediaPreviewBox");
+  var mediaSaveBox = document.getElementById("mediaSaveBox");
+  var splitter = document.getElementById("mediaSplitter");
+  var tree = document.getElementById("imagetree");
+  var count = tree.view.selection.count;
+  if (count == 0) {
+    previewBox.collapsed = true;
+    mediaSaveBox.collapsed = true;
+    splitter.collapsed = true;
+    tree.setAttribute("flex", "1");
+  } else if (count > 1) {
+    splitter.collapsed = true;
+    previewBox.collapsed = true;
+    mediaSaveBox.collapsed = false;
+    tree.setAttribute("flex", "1");
+  } else {
+    mediaSaveBox.collapsed = true;
+    splitter.collapsed = false;
+    previewBox.collapsed = false;
+    tree.setAttribute("flex", "0");
+    makePreview(getSelectedRows(tree)[0]);
+  }
+}
+
+// Makes the media preview (image, video, etc) for the selected row on the media tab.
+function makePreview(row) {
+  var item = gImageView.data[row][COL_IMAGE_NODE];
+  var url = gImageView.data[row][COL_IMAGE_ADDRESS];
+  var isBG = gImageView.data[row][COL_IMAGE_BG];
+  var isAudio = false;
+
+  setItemValue("imageurltext", url);
+  setItemValue("imagetext", item.imageText);
+  setItemValue("imagelongdesctext", item.longDesc);
+
+  // get cache info
+  var cacheKey = url.replace(/#.*$/, "");
+  openCacheEntry(cacheKey, function (cacheEntry) {
+    // find out the file size
+    if (cacheEntry) {
+      let imageSize = cacheEntry.dataSize;
+      var kbSize = Math.round((imageSize / 1024) * 100) / 100;
+      document.l10n.setAttributes(
+        document.getElementById("imagesizetext"),
+        "properties-general-size",
+        { kb: formatNumber(kbSize), bytes: formatNumber(imageSize) }
+      );
+    } else {
+      document.l10n.setAttributes(
+        document.getElementById("imagesizetext"),
+        "media-unknown-not-cached"
+      );
+    }
+
+    var mimeType = item.mimeType || this.getContentTypeFromHeaders(cacheEntry);
+    var numFrames = item.numFrames;
+
+    let element = document.getElementById("imagetypetext");
+    var imageType;
+    if (mimeType) {
+      // We found the type, try to display it nicely
+      let imageMimeType = /^image\/(.*)/i.exec(mimeType);
+      if (imageMimeType) {
+        imageType = imageMimeType[1].toUpperCase();
+        if (numFrames > 1) {
+          document.l10n.setAttributes(element, "media-animated-image-type", {
+            type: imageType,
+            frames: numFrames,
+          });
+        } else {
+          document.l10n.setAttributes(element, "media-image-type", {
+            type: imageType,
+          });
+        }
+      } else {
+        // the MIME type doesn't begin with image/, display the raw type
+        element.setAttribute("value", mimeType);
+        element.removeAttribute("data-l10n-id");
+      }
+    } else {
+      // We couldn't find the type, fall back to the value in the treeview
+      element.setAttribute("value", gImageView.data[row][COL_IMAGE_TYPE]);
+      element.removeAttribute("data-l10n-id");
+    }
+
+    var imageContainer = document.getElementById("theimagecontainer");
+    var oldImage = document.getElementById("thepreviewimage");
+
+    var isProtocolAllowed = checkProtocol(gImageView.data[row]);
+
+    var newImage = new Image();
+    newImage.id = "thepreviewimage";
+    var physWidth = 0,
+      physHeight = 0;
+    var width = 0,
+      height = 0;
+
+    let triggeringPrinStr = E10SUtils.serializePrincipal(gDocInfo.principal);
+    if (
+      (item.HTMLLinkElement ||
+        item.HTMLInputElement ||
+        item.HTMLImageElement ||
+        item.SVGImageElement ||
+        (item.HTMLObjectElement && mimeType && mimeType.startsWith("image/")) ||
+        isBG) &&
+      isProtocolAllowed
+    ) {
+      function loadOrErrorListener() {
+        newImage.removeEventListener("load", loadOrErrorListener);
+        newImage.removeEventListener("error", loadOrErrorListener);
+        physWidth = newImage.width || 0;
+        physHeight = newImage.height || 0;
+
+        // "width" and "height" attributes must be set to newImage,
+        // even if there is no "width" or "height attribute in item;
+        // otherwise, the preview image cannot be displayed correctly.
+        // Since the image might have been loaded out-of-process, we expect
+        // the item to tell us its width / height dimensions. Failing that
+        // the item should tell us the natural dimensions of the image. Finally
+        // failing that, we'll assume that the image was never loaded in the
+        // other process (this can be true for favicons, for example), and so
+        // we'll assume that we can use the natural dimensions of the newImage
+        // we just created. If the natural dimensions of newImage are not known
+        // then the image is probably broken.
+        if (!isBG) {
+          newImage.width =
+            ("width" in item && item.width) || newImage.naturalWidth;
+          newImage.height =
+            ("height" in item && item.height) || newImage.naturalHeight;
+        } else {
+          // the Width and Height of an HTML tag should not be used for its background image
+          // (for example, "table" can have "width" or "height" attributes)
+          newImage.width = item.naturalWidth || newImage.naturalWidth;
+          newImage.height = item.naturalHeight || newImage.naturalHeight;
+        }
+
+        if (item.SVGImageElement) {
+          newImage.width = item.SVGImageElementWidth;
+          newImage.height = item.SVGImageElementHeight;
+        }
+
+        width = newImage.width;
+        height = newImage.height;
+
+        document.getElementById("theimagecontainer").collapsed = false;
+        document.getElementById("brokenimagecontainer").collapsed = true;
+
+        if (url) {
+          if (width != physWidth || height != physHeight) {
+            document.l10n.setAttributes(
+              document.getElementById("imagedimensiontext"),
+              "media-dimensions-scaled",
+              {
+                dimx: formatNumber(physWidth),
+                dimy: formatNumber(physHeight),
+                scaledx: formatNumber(width),
+                scaledy: formatNumber(height),
+              }
+            );
+          } else {
+            document.l10n.setAttributes(
+              document.getElementById("imagedimensiontext"),
+              "media-dimensions",
+              { dimx: formatNumber(width), dimy: formatNumber(height) }
+            );
+          }
+        }
+      }
+
+      // We need to wait for the image to finish loading before using width & height
+      newImage.addEventListener("load", loadOrErrorListener);
+      newImage.addEventListener("error", loadOrErrorListener);
+
+      newImage.setAttribute("triggeringprincipal", triggeringPrinStr);
+      newImage.setAttribute("src", url);
+    } else {
+      // Handle the case where newImage is not used for width & height
+      if (item.HTMLVideoElement && isProtocolAllowed) {
+        newImage = document.createElement("video");
+        newImage.id = "thepreviewimage";
+        newImage.setAttribute("triggeringprincipal", triggeringPrinStr);
+        newImage.src = url;
+        newImage.controls = true;
+        width = physWidth = item.videoWidth;
+        height = physHeight = item.videoHeight;
+
+        document.getElementById("theimagecontainer").collapsed = false;
+        document.getElementById("brokenimagecontainer").collapsed = true;
+      } else if (item.HTMLAudioElement && isProtocolAllowed) {
+        newImage = new Audio();
+        newImage.id = "thepreviewimage";
+        newImage.setAttribute("triggeringprincipal", triggeringPrinStr);
+        newImage.src = url;
+        newImage.controls = true;
+        isAudio = true;
+
+        document.getElementById("theimagecontainer").collapsed = false;
+        document.getElementById("brokenimagecontainer").collapsed = true;
+      } else {
+        // fallback image for protocols not allowed (e.g., javascript:)
+        // or elements not [yet] handled (e.g., object, embed).
+        document.getElementById("brokenimagecontainer").collapsed = false;
+        document.getElementById("theimagecontainer").collapsed = true;
+      }
+
+      if (url && !isAudio) {
+        document.l10n.setAttributes(
+          document.getElementById("imagedimensiontext"),
+          "media-dimensions",
+          { dimx: formatNumber(width), dimy: formatNumber(height) }
+        );
+      }
+    }
+
+    imageContainer.removeChild(oldImage);
+    imageContainer.appendChild(newImage);
+  });
+}
+
+function getContentTypeFromHeaders(cacheEntryDescriptor) {
+  if (!cacheEntryDescriptor) {
+    return null;
+  }
+
+  let headers = cacheEntryDescriptor.getMetaDataElement("response-head");
+  let type = /^Content-Type:\s*(.*?)\s*(?:\;|$)/im.exec(headers);
+  return type && type[1];
+}
+
+function setItemValue(id, value) {
+  var item = document.getElementById(id);
+  item.closest("tr").hidden = !value;
+  if (value) {
+    item.value = value;
+  }
+}
+
+function formatNumber(number) {
+  return (+number).toLocaleString(); // coerce number to a numeric value before calling toLocaleString()
+}
+
+function formatDate(datestr, unknown) {
+  var date = new Date(datestr);
+  if (!date.valueOf()) {
+    return unknown;
+  }
+
+  const dateTimeFormatter = new Services.intl.DateTimeFormat(undefined, {
+    dateStyle: "long",
+    timeStyle: "long",
+  });
+  return dateTimeFormatter.format(date);
+}
+
+let treeController = {
+  supportsCommand(command) {
+    return command == "cmd_copy" || command == "cmd_selectAll";
+  },
+
+  isCommandEnabled(command) {
+    return true; // not worth checking for this
+  },
+
+  doCommand(command) {
+    switch (command) {
+      case "cmd_copy":
+        doCopy();
+        break;
+      case "cmd_selectAll":
+        document.activeElement.view.selection.selectAll();
+        break;
+    }
+  },
+};
+
+function doCopy() {
+  if (!gClipboardHelper) {
+    return;
+  }
+
+  var elem = document.commandDispatcher.focusedElement;
+
+  if (elem && elem.localName == "tree") {
+    var view = elem.view;
+    var selection = view.selection;
+    var text = [],
+      tmp = "";
+    var min = {},
+      max = {};
+
+    var count = selection.getRangeCount();
+
+    for (var i = 0; i < count; i++) {
+      selection.getRangeAt(i, min, max);
+
+      for (var row = min.value; row <= max.value; row++) {
+        tmp = view.getCellValue(row, null);
+        if (tmp) {
+          text.push(tmp);
+        }
+      }
+    }
+    gClipboardHelper.copyString(text.join("\n"));
+  }
+}
+
+function doSelectAllMedia() {
+  var tree = document.getElementById("imagetree");
+
+  if (tree) {
+    tree.view.selection.selectAll();
+  }
+}
+
+function selectImage() {
+  if (!gImageElement) {
+    return;
+  }
+
+  var tree = document.getElementById("imagetree");
+  for (var i = 0; i < tree.view.rowCount; i++) {
+    // If the image row element is the image selected from the "View Image Info" context menu item.
+    let image = gImageView.data[i][COL_IMAGE_NODE];
+    if (
+      !gImageView.data[i][COL_IMAGE_BG] &&
+      gImageElement.currentSrc == gImageView.data[i][COL_IMAGE_ADDRESS] &&
+      gImageElement.width == image.width &&
+      gImageElement.height == image.height &&
+      gImageElement.imageText == image.imageText
+    ) {
+      tree.view.selection.select(i);
+      tree.ensureRowIsVisible(i);
+      tree.focus();
+      return;
+    }
+  }
+}
+
+function checkProtocol(img) {
+  var url = img[COL_IMAGE_ADDRESS];
+  return (
+    /^data:image\//i.test(url) ||
+    /^(https?|file|about|chrome|resource):/.test(url)
+  );
+}