mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-11-04 02:09:05 +02:00
716 lines
19 KiB
JavaScript
716 lines
19 KiB
JavaScript
/* 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/. */
|
|
|
|
"use strict";
|
|
|
|
const EXPORTED_SYMBOLS = ["FaviconLoader"];
|
|
|
|
const lazy = {};
|
|
|
|
ChromeUtils.defineESModuleGetters(lazy, {
|
|
DeferredTask: "resource://gre/modules/DeferredTask.sys.mjs",
|
|
PromiseUtils: "resource://gre/modules/PromiseUtils.sys.mjs",
|
|
});
|
|
|
|
const STREAM_SEGMENT_SIZE = 4096;
|
|
const PR_UINT32_MAX = 0xffffffff;
|
|
|
|
const BinaryInputStream = Components.Constructor(
|
|
"@mozilla.org/binaryinputstream;1",
|
|
"nsIBinaryInputStream",
|
|
"setInputStream"
|
|
);
|
|
const StorageStream = Components.Constructor(
|
|
"@mozilla.org/storagestream;1",
|
|
"nsIStorageStream",
|
|
"init"
|
|
);
|
|
const BufferedOutputStream = Components.Constructor(
|
|
"@mozilla.org/network/buffered-output-stream;1",
|
|
"nsIBufferedOutputStream",
|
|
"init"
|
|
);
|
|
|
|
const SIZES_TELEMETRY_ENUM = {
|
|
NO_SIZES: 0,
|
|
ANY: 1,
|
|
DIMENSION: 2,
|
|
INVALID: 3,
|
|
};
|
|
|
|
const FAVICON_PARSING_TIMEOUT = 100;
|
|
const FAVICON_RICH_ICON_MIN_WIDTH = 96;
|
|
const PREFERRED_WIDTH = 16;
|
|
|
|
// URL schemes that we don't want to load and convert to data URLs.
|
|
const LOCAL_FAVICON_SCHEMES = ["chrome", "about", "resource", "data"];
|
|
|
|
const MAX_FAVICON_EXPIRATION = 7 * 24 * 60 * 60 * 1000;
|
|
const MAX_ICON_SIZE = 2048;
|
|
|
|
const TYPE_ICO = "image/x-icon";
|
|
const TYPE_SVG = "image/svg+xml";
|
|
|
|
function promiseBlobAsDataURL(blob) {
|
|
return new Promise((resolve, reject) => {
|
|
let reader = new FileReader();
|
|
reader.addEventListener("load", () => resolve(reader.result));
|
|
reader.addEventListener("error", reject);
|
|
reader.readAsDataURL(blob);
|
|
});
|
|
}
|
|
|
|
function promiseBlobAsOctets(blob) {
|
|
return new Promise((resolve, reject) => {
|
|
let reader = new FileReader();
|
|
reader.addEventListener("load", () => {
|
|
resolve(Array.from(reader.result).map(c => c.charCodeAt(0)));
|
|
});
|
|
reader.addEventListener("error", reject);
|
|
reader.readAsBinaryString(blob);
|
|
});
|
|
}
|
|
|
|
function promiseImage(stream, type) {
|
|
return new Promise((resolve, reject) => {
|
|
let imgTools = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools);
|
|
|
|
imgTools.decodeImageAsync(
|
|
stream,
|
|
type,
|
|
(image, result) => {
|
|
if (!Components.isSuccessCode(result)) {
|
|
reject();
|
|
return;
|
|
}
|
|
|
|
resolve(image);
|
|
},
|
|
Services.tm.currentThread
|
|
);
|
|
});
|
|
}
|
|
|
|
class FaviconLoad {
|
|
constructor(iconInfo) {
|
|
this.icon = iconInfo;
|
|
|
|
let securityFlags;
|
|
if (iconInfo.node.crossOrigin === "anonymous") {
|
|
securityFlags = Ci.nsILoadInfo.SEC_REQUIRE_CORS_INHERITS_SEC_CONTEXT;
|
|
} else if (iconInfo.node.crossOrigin === "use-credentials") {
|
|
securityFlags =
|
|
Ci.nsILoadInfo.SEC_REQUIRE_CORS_INHERITS_SEC_CONTEXT |
|
|
Ci.nsILoadInfo.SEC_COOKIES_INCLUDE;
|
|
} else {
|
|
securityFlags =
|
|
Ci.nsILoadInfo.SEC_ALLOW_CROSS_ORIGIN_INHERITS_SEC_CONTEXT;
|
|
}
|
|
|
|
this.channel = Services.io.newChannelFromURI(
|
|
iconInfo.iconUri,
|
|
iconInfo.node,
|
|
iconInfo.node.nodePrincipal,
|
|
iconInfo.node.nodePrincipal,
|
|
securityFlags |
|
|
Ci.nsILoadInfo.SEC_ALLOW_CHROME |
|
|
Ci.nsILoadInfo.SEC_DISALLOW_SCRIPT,
|
|
Ci.nsIContentPolicy.TYPE_INTERNAL_IMAGE_FAVICON
|
|
);
|
|
|
|
if (this.channel instanceof Ci.nsIHttpChannel) {
|
|
this.channel.QueryInterface(Ci.nsIHttpChannel);
|
|
let referrerInfo = Cc["@mozilla.org/referrer-info;1"].createInstance(
|
|
Ci.nsIReferrerInfo
|
|
);
|
|
// Sometimes node is a document and sometimes it is an element. We need
|
|
// to set the referrer info correctly either way.
|
|
if (iconInfo.node.nodeType == iconInfo.node.DOCUMENT_NODE) {
|
|
referrerInfo.initWithDocument(iconInfo.node);
|
|
} else {
|
|
referrerInfo.initWithElement(iconInfo.node);
|
|
}
|
|
this.channel.referrerInfo = referrerInfo;
|
|
}
|
|
this.channel.loadFlags |=
|
|
Ci.nsIRequest.LOAD_BACKGROUND |
|
|
Ci.nsIRequest.VALIDATE_NEVER |
|
|
Ci.nsIRequest.LOAD_FROM_CACHE;
|
|
// Sometimes node is a document and sometimes it is an element. This is
|
|
// the easiest single way to get to the load group in both those cases.
|
|
this.channel.loadGroup =
|
|
iconInfo.node.ownerGlobal.document.documentLoadGroup;
|
|
this.channel.notificationCallbacks = this;
|
|
|
|
if (this.channel instanceof Ci.nsIHttpChannelInternal) {
|
|
this.channel.blockAuthPrompt = true;
|
|
}
|
|
|
|
if (
|
|
Services.prefs.getBoolPref("network.http.tailing.enabled", true) &&
|
|
this.channel instanceof Ci.nsIClassOfService
|
|
) {
|
|
this.channel.addClassFlags(
|
|
Ci.nsIClassOfService.Tail | Ci.nsIClassOfService.Throttleable
|
|
);
|
|
}
|
|
}
|
|
|
|
load() {
|
|
this._deferred = lazy.PromiseUtils.defer();
|
|
|
|
// Clear the references when we succeed or fail.
|
|
let cleanup = () => {
|
|
this.channel = null;
|
|
this.dataBuffer = null;
|
|
this.stream = null;
|
|
};
|
|
this._deferred.promise.then(cleanup, cleanup);
|
|
|
|
this.dataBuffer = new StorageStream(STREAM_SEGMENT_SIZE, PR_UINT32_MAX);
|
|
|
|
// storage streams do not implement writeFrom so wrap it with a buffered stream.
|
|
this.stream = new BufferedOutputStream(
|
|
this.dataBuffer.getOutputStream(0),
|
|
STREAM_SEGMENT_SIZE * 2
|
|
);
|
|
|
|
try {
|
|
this.channel.asyncOpen(this);
|
|
} catch (e) {
|
|
this._deferred.reject(e);
|
|
}
|
|
|
|
return this._deferred.promise;
|
|
}
|
|
|
|
cancel() {
|
|
if (!this.channel) {
|
|
return;
|
|
}
|
|
|
|
this.channel.cancel(Cr.NS_BINDING_ABORTED);
|
|
}
|
|
|
|
onStartRequest(request) {}
|
|
|
|
onDataAvailable(request, inputStream, offset, count) {
|
|
this.stream.writeFrom(inputStream, count);
|
|
}
|
|
|
|
asyncOnChannelRedirect(oldChannel, newChannel, flags, callback) {
|
|
if (oldChannel == this.channel) {
|
|
this.channel = newChannel;
|
|
}
|
|
|
|
callback.onRedirectVerifyCallback(Cr.NS_OK);
|
|
}
|
|
|
|
async onStopRequest(request, statusCode) {
|
|
if (request != this.channel) {
|
|
// Indicates that a redirect has occurred. We don't care about the result
|
|
// of the original channel.
|
|
return;
|
|
}
|
|
|
|
this.stream.close();
|
|
this.stream = null;
|
|
|
|
if (!Components.isSuccessCode(statusCode)) {
|
|
if (statusCode == Cr.NS_BINDING_ABORTED) {
|
|
this._deferred.reject(
|
|
Components.Exception(
|
|
`Favicon load from ${this.icon.iconUri.spec} was cancelled.`,
|
|
statusCode
|
|
)
|
|
);
|
|
} else {
|
|
this._deferred.reject(
|
|
Components.Exception(
|
|
`Favicon at "${this.icon.iconUri.spec}" failed to load.`,
|
|
statusCode
|
|
)
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (this.channel instanceof Ci.nsIHttpChannel) {
|
|
if (!this.channel.requestSucceeded) {
|
|
this._deferred.reject(
|
|
Components.Exception(
|
|
`Favicon at "${this.icon.iconUri.spec}" failed to load: ${this.channel.responseStatusText}.`,
|
|
{ data: { httpStatus: this.channel.responseStatus } }
|
|
)
|
|
);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// By default don't store icons added after "pageshow".
|
|
let canStoreIcon = this.icon.beforePageShow;
|
|
if (canStoreIcon) {
|
|
// Don't store icons responding with Cache-Control: no-store, but always
|
|
// allow root domain icons.
|
|
try {
|
|
if (
|
|
this.icon.iconUri.filePath != "/favicon.ico" &&
|
|
this.channel instanceof Ci.nsIHttpChannel &&
|
|
this.channel.isNoStoreResponse()
|
|
) {
|
|
canStoreIcon = false;
|
|
}
|
|
} catch (ex) {
|
|
if (ex.result != Cr.NS_ERROR_NOT_AVAILABLE) {
|
|
throw ex;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Attempt to get an expiration time from the cache. If this fails, we'll
|
|
// use this default.
|
|
let expiration = Date.now() + MAX_FAVICON_EXPIRATION;
|
|
|
|
// This stuff isn't available after onStopRequest returns (so don't start
|
|
// any async operations before this!).
|
|
if (this.channel instanceof Ci.nsICacheInfoChannel) {
|
|
try {
|
|
expiration = Math.min(
|
|
this.channel.cacheTokenExpirationTime * 1000,
|
|
expiration
|
|
);
|
|
} catch (e) {
|
|
// Ignore failures to get the expiration time.
|
|
}
|
|
}
|
|
|
|
try {
|
|
let stream = new BinaryInputStream(this.dataBuffer.newInputStream(0));
|
|
let buffer = new ArrayBuffer(this.dataBuffer.length);
|
|
stream.readArrayBuffer(buffer.byteLength, buffer);
|
|
|
|
let type = this.channel.contentType;
|
|
let blob = new Blob([buffer], { type });
|
|
|
|
if (type != "image/svg+xml") {
|
|
let octets = await promiseBlobAsOctets(blob);
|
|
let sniffer = Cc["@mozilla.org/image/loader;1"].createInstance(
|
|
Ci.nsIContentSniffer
|
|
);
|
|
type = sniffer.getMIMETypeFromContent(
|
|
this.channel,
|
|
octets,
|
|
octets.length
|
|
);
|
|
|
|
if (!type) {
|
|
throw Components.Exception(
|
|
`Favicon at "${this.icon.iconUri.spec}" did not match a known mimetype.`,
|
|
Cr.NS_ERROR_FAILURE
|
|
);
|
|
}
|
|
|
|
blob = blob.slice(0, blob.size, type);
|
|
|
|
let image;
|
|
try {
|
|
image = await promiseImage(this.dataBuffer.newInputStream(0), type);
|
|
} catch (e) {
|
|
throw Components.Exception(
|
|
`Favicon at "${this.icon.iconUri.spec}" could not be decoded.`,
|
|
Cr.NS_ERROR_FAILURE
|
|
);
|
|
}
|
|
|
|
if (image.width > MAX_ICON_SIZE || image.height > MAX_ICON_SIZE) {
|
|
throw Components.Exception(
|
|
`Favicon at "${this.icon.iconUri.spec}" is too large.`,
|
|
Cr.NS_ERROR_FAILURE
|
|
);
|
|
}
|
|
}
|
|
|
|
let dataURL = await promiseBlobAsDataURL(blob);
|
|
|
|
this._deferred.resolve({
|
|
expiration,
|
|
dataURL,
|
|
canStoreIcon,
|
|
});
|
|
} catch (e) {
|
|
this._deferred.reject(e);
|
|
}
|
|
}
|
|
|
|
getInterface(iid) {
|
|
if (iid.equals(Ci.nsIChannelEventSink)) {
|
|
return this;
|
|
}
|
|
throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Extract the icon width from the size attribute. It also sends the telemetry
|
|
* about the size type and size dimension info.
|
|
*
|
|
* @param {Array} aSizes An array of strings about size.
|
|
* @return {Number} A width of the icon in pixel.
|
|
*/
|
|
function extractIconSize(aSizes) {
|
|
let width = -1;
|
|
let sizesType;
|
|
const re = /^([1-9][0-9]*)x[1-9][0-9]*$/i;
|
|
|
|
if (aSizes.length) {
|
|
for (let size of aSizes) {
|
|
if (size.toLowerCase() == "any") {
|
|
sizesType = SIZES_TELEMETRY_ENUM.ANY;
|
|
break;
|
|
} else {
|
|
let values = re.exec(size);
|
|
if (values && values.length > 1) {
|
|
sizesType = SIZES_TELEMETRY_ENUM.DIMENSION;
|
|
width = parseInt(values[1]);
|
|
break;
|
|
} else {
|
|
sizesType = SIZES_TELEMETRY_ENUM.INVALID;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
sizesType = SIZES_TELEMETRY_ENUM.NO_SIZES;
|
|
}
|
|
|
|
// Telemetry probes for measuring the sizes attribute
|
|
// usage and available dimensions.
|
|
Services.telemetry
|
|
.getHistogramById("LINK_ICON_SIZES_ATTR_USAGE")
|
|
.add(sizesType);
|
|
if (width > 0) {
|
|
Services.telemetry
|
|
.getHistogramById("LINK_ICON_SIZES_ATTR_DIMENSION")
|
|
.add(width);
|
|
}
|
|
|
|
return width;
|
|
}
|
|
|
|
/*
|
|
* Get link icon URI from a link dom node.
|
|
*
|
|
* @param {DOMNode} aLink A link dom node.
|
|
* @return {nsIURI} A uri of the icon.
|
|
*/
|
|
function getLinkIconURI(aLink) {
|
|
let targetDoc = aLink.ownerDocument;
|
|
let uri = Services.io.newURI(aLink.href, targetDoc.characterSet);
|
|
try {
|
|
uri = uri
|
|
.mutate()
|
|
.setUserPass("")
|
|
.finalize();
|
|
} catch (e) {
|
|
// some URIs are immutable
|
|
}
|
|
return uri;
|
|
}
|
|
|
|
/**
|
|
* Guess a type for an icon based on its declared type or file extension.
|
|
*/
|
|
function guessType(icon) {
|
|
// No type with no icon
|
|
if (!icon) {
|
|
return "";
|
|
}
|
|
|
|
// Use the file extension to guess at a type we're interested in
|
|
if (!icon.type) {
|
|
let extension = icon.iconUri.filePath.split(".").pop();
|
|
switch (extension) {
|
|
case "ico":
|
|
return TYPE_ICO;
|
|
case "svg":
|
|
return TYPE_SVG;
|
|
}
|
|
}
|
|
|
|
// Fuzzily prefer the type or fall back to the declared type
|
|
return icon.type == "image/vnd.microsoft.icon" ? TYPE_ICO : icon.type || "";
|
|
}
|
|
|
|
/*
|
|
* Selects the best rich icon and tab icon from a list of IconInfo objects.
|
|
*
|
|
* @param {Array} iconInfos A list of IconInfo objects.
|
|
* @param {integer} preferredWidth The preferred width for tab icons.
|
|
*/
|
|
function selectIcons(iconInfos, preferredWidth) {
|
|
if (!iconInfos.length) {
|
|
return {
|
|
richIcon: null,
|
|
tabIcon: null,
|
|
};
|
|
}
|
|
|
|
let preferredIcon;
|
|
let bestSizedIcon;
|
|
// Other links with the "icon" tag are the default icons
|
|
let defaultIcon;
|
|
// Rich icons are either apple-touch or fluid icons, or the ones of the
|
|
// dimension 96x96 or greater
|
|
let largestRichIcon;
|
|
|
|
for (let icon of iconInfos) {
|
|
if (!icon.isRichIcon) {
|
|
// First check for svg. If it's not available check for an icon with a
|
|
// size adapt to the current resolution. If both are not available, prefer
|
|
// ico files. When multiple icons are in the same set, the latest wins.
|
|
if (guessType(icon) == TYPE_SVG) {
|
|
preferredIcon = icon;
|
|
} else if (
|
|
icon.width == preferredWidth &&
|
|
guessType(preferredIcon) != TYPE_SVG
|
|
) {
|
|
preferredIcon = icon;
|
|
} else if (
|
|
guessType(icon) == TYPE_ICO &&
|
|
(!preferredIcon || guessType(preferredIcon) == TYPE_ICO)
|
|
) {
|
|
preferredIcon = icon;
|
|
}
|
|
|
|
// Check for an icon larger yet closest to preferredWidth, that can be
|
|
// downscaled efficiently.
|
|
if (
|
|
icon.width >= preferredWidth &&
|
|
(!bestSizedIcon || bestSizedIcon.width >= icon.width)
|
|
) {
|
|
bestSizedIcon = icon;
|
|
}
|
|
}
|
|
|
|
// Note that some sites use hi-res icons without specifying them as
|
|
// apple-touch or fluid icons.
|
|
if (icon.isRichIcon || icon.width >= FAVICON_RICH_ICON_MIN_WIDTH) {
|
|
if (!largestRichIcon || largestRichIcon.width < icon.width) {
|
|
largestRichIcon = icon;
|
|
}
|
|
} else {
|
|
defaultIcon = icon;
|
|
}
|
|
}
|
|
|
|
// Now set the favicons for the page in the following order:
|
|
// 1. Set the best rich icon if any.
|
|
// 2. Set the preferred one if any, otherwise check if there's a better
|
|
// sized fit.
|
|
// This order allows smaller icon frames to eventually override rich icon
|
|
// frames.
|
|
|
|
let tabIcon = null;
|
|
if (preferredIcon) {
|
|
tabIcon = preferredIcon;
|
|
} else if (bestSizedIcon) {
|
|
tabIcon = bestSizedIcon;
|
|
} else if (defaultIcon) {
|
|
tabIcon = defaultIcon;
|
|
}
|
|
|
|
return {
|
|
richIcon: largestRichIcon,
|
|
tabIcon,
|
|
};
|
|
}
|
|
|
|
class IconLoader {
|
|
constructor(actor) {
|
|
this.actor = actor;
|
|
}
|
|
|
|
async load(iconInfo) {
|
|
if (this._loader) {
|
|
this._loader.cancel();
|
|
}
|
|
|
|
if (LOCAL_FAVICON_SCHEMES.includes(iconInfo.iconUri.scheme)) {
|
|
// We need to do a manual security check because the channel won't do
|
|
// it for us.
|
|
try {
|
|
Services.scriptSecurityManager.checkLoadURIWithPrincipal(
|
|
iconInfo.node.nodePrincipal,
|
|
iconInfo.iconUri,
|
|
Services.scriptSecurityManager.ALLOW_CHROME
|
|
);
|
|
} catch (ex) {
|
|
return;
|
|
}
|
|
this.actor.sendAsyncMessage("Link:SetIcon", {
|
|
pageURL: iconInfo.pageUri.spec,
|
|
originalURL: iconInfo.iconUri.spec,
|
|
canUseForTab: !iconInfo.isRichIcon,
|
|
expiration: undefined,
|
|
iconURL: iconInfo.iconUri.spec,
|
|
canStoreIcon: iconInfo.beforePageShow,
|
|
});
|
|
return;
|
|
}
|
|
|
|
// Let the main process that a tab icon is possibly coming.
|
|
this.actor.sendAsyncMessage("Link:LoadingIcon", {
|
|
originalURL: iconInfo.iconUri.spec,
|
|
canUseForTab: !iconInfo.isRichIcon,
|
|
});
|
|
|
|
try {
|
|
this._loader = new FaviconLoad(iconInfo);
|
|
let { dataURL, expiration, canStoreIcon } = await this._loader.load();
|
|
|
|
this.actor.sendAsyncMessage("Link:SetIcon", {
|
|
pageURL: iconInfo.pageUri.spec,
|
|
originalURL: iconInfo.iconUri.spec,
|
|
canUseForTab: !iconInfo.isRichIcon,
|
|
expiration,
|
|
iconURL: dataURL,
|
|
canStoreIcon,
|
|
});
|
|
} catch (e) {
|
|
if (e.result != Cr.NS_BINDING_ABORTED) {
|
|
if (typeof e.data?.wrappedJSObject?.httpStatus !== "number") {
|
|
console.error(e);
|
|
}
|
|
|
|
// Used mainly for tests currently.
|
|
this.actor.sendAsyncMessage("Link:SetFailedIcon", {
|
|
originalURL: iconInfo.iconUri.spec,
|
|
canUseForTab: !iconInfo.isRichIcon,
|
|
});
|
|
}
|
|
} finally {
|
|
this._loader = null;
|
|
}
|
|
}
|
|
|
|
cancel() {
|
|
if (!this._loader) {
|
|
return;
|
|
}
|
|
|
|
this._loader.cancel();
|
|
this._loader = null;
|
|
}
|
|
}
|
|
|
|
class FaviconLoader {
|
|
constructor(actor) {
|
|
this.actor = actor;
|
|
this.iconInfos = [];
|
|
|
|
// Icons added after onPageShow() are likely added by modifying <link> tags
|
|
// through javascript; we want to avoid storing those permanently because
|
|
// they are probably used to show badges, and many of them could be
|
|
// randomly generated. This boolean can be used to track that case.
|
|
this.beforePageShow = true;
|
|
|
|
// For every page we attempt to find a rich icon and a tab icon. These
|
|
// objects take care of the load process for each.
|
|
this.richIconLoader = new IconLoader(actor);
|
|
this.tabIconLoader = new IconLoader(actor);
|
|
|
|
this.iconTask = new lazy.DeferredTask(
|
|
() => this.loadIcons(),
|
|
FAVICON_PARSING_TIMEOUT
|
|
);
|
|
}
|
|
|
|
loadIcons() {
|
|
// If the page is unloaded immediately after the DeferredTask's timer fires
|
|
// we can still attempt to load icons, which will fail since the content
|
|
// window is no longer available. Checking if iconInfos has been cleared
|
|
// allows us to bail out early in this case.
|
|
if (!this.iconInfos.length) {
|
|
return;
|
|
}
|
|
|
|
let preferredWidth =
|
|
PREFERRED_WIDTH * Math.ceil(this.actor.contentWindow.devicePixelRatio);
|
|
let { richIcon, tabIcon } = selectIcons(this.iconInfos, preferredWidth);
|
|
this.iconInfos = [];
|
|
|
|
if (richIcon) {
|
|
this.richIconLoader.load(richIcon);
|
|
}
|
|
|
|
if (tabIcon) {
|
|
this.tabIconLoader.load(tabIcon);
|
|
}
|
|
}
|
|
|
|
addIconFromLink(aLink, aIsRichIcon) {
|
|
let iconInfo = makeFaviconFromLink(aLink, aIsRichIcon);
|
|
if (iconInfo) {
|
|
iconInfo.beforePageShow = this.beforePageShow;
|
|
this.iconInfos.push(iconInfo);
|
|
this.iconTask.arm();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
addDefaultIcon(pageUri) {
|
|
// Currently ImageDocuments will just load the default favicon, see bug
|
|
// 403651 for discussion.
|
|
this.iconInfos.push({
|
|
pageUri,
|
|
iconUri: pageUri
|
|
.mutate()
|
|
.setPathQueryRef("/favicon.ico")
|
|
.finalize(),
|
|
width: -1,
|
|
isRichIcon: false,
|
|
type: TYPE_ICO,
|
|
node: this.actor.document,
|
|
beforePageShow: this.beforePageShow,
|
|
});
|
|
this.iconTask.arm();
|
|
}
|
|
|
|
onPageShow() {
|
|
// We're likely done with icon parsing so load the pending icons now.
|
|
if (this.iconTask.isArmed) {
|
|
this.iconTask.disarm();
|
|
this.loadIcons();
|
|
}
|
|
this.beforePageShow = false;
|
|
}
|
|
|
|
onPageHide() {
|
|
this.richIconLoader.cancel();
|
|
this.tabIconLoader.cancel();
|
|
|
|
this.iconTask.disarm();
|
|
this.iconInfos = [];
|
|
}
|
|
}
|
|
|
|
function makeFaviconFromLink(aLink, aIsRichIcon) {
|
|
let iconUri = getLinkIconURI(aLink);
|
|
if (!iconUri) {
|
|
return null;
|
|
}
|
|
|
|
// Extract the size type and width.
|
|
let width = extractIconSize(aLink.sizes);
|
|
|
|
return {
|
|
pageUri: aLink.ownerDocument.documentURIObject,
|
|
iconUri,
|
|
width,
|
|
isRichIcon: aIsRichIcon,
|
|
type: aLink.type,
|
|
node: aLink,
|
|
};
|
|
}
|