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a6a703eabb
OSX caches the application info when Info.plist is created and if the icon has not yet been embedded in the .app package, Finder might indefinitely cache a no-icon app
112 lines
3.7 KiB
JavaScript
112 lines
3.7 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This function receives a list of icon sizes
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* and URLs and returns the url string for the biggest icon.
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*
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* @param aIcons An object where the keys are the icon sizes
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* and the values are URL strings. E.g.:
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* aIcons = {
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* "16": "http://www.example.org/icon16.png",
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* "32": "http://www.example.org/icon32.png"
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* };
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*
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* @returns the URL string for the largest specified icon
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*/
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function getBiggestIconURL(aIcons) {
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if (!aIcons) {
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return "chrome://browser/skin/webapps-64.png";
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}
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let iconSizes = Object.keys(aIcons);
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if (iconSizes.length == 0) {
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return "chrome://browser/skin/webapps-64.png";
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}
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iconSizes.sort(function(a, b) a - b);
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return aIcons[iconSizes.pop()];
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}
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/**
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* This function retrieves the icon for an app as specified
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* in the iconURI on the shell object.
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* Upon completion it will call aShell.processIcon()
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*
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* @param aShell The shell that specifies the properties
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* of the native app. Three properties from this
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* shell will be used in this function:
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* - iconURI
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* - useTmpForIcon
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* - processIcon()
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*/
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function getIconForApp(aShell, callback) {
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let iconURI = aShell.iconURI;
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let mimeService = Cc["@mozilla.org/mime;1"]
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.getService(Ci.nsIMIMEService);
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let mimeType;
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try {
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let tIndex = iconURI.path.indexOf(";");
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if("data" == iconURI.scheme && tIndex != -1) {
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mimeType = iconURI.path.substring(0, tIndex);
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} else {
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mimeType = mimeService.getTypeFromURI(iconURI);
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}
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} catch(e) {
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throw("getIconFromURI - Failed to determine MIME type");
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}
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try {
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let listener;
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if(aShell.useTmpForIcon) {
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let downloadObserver = {
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onDownloadComplete: function(downloader, request, cx, aStatus, file) {
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// pass downloader just to keep reference around
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onIconDownloaded(aShell, mimeType, aStatus, file, callback, downloader);
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}
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};
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let tmpIcon = Services.dirsvc.get("TmpD", Ci.nsIFile);
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tmpIcon.append("tmpicon." + mimeService.getPrimaryExtension(mimeType, ""));
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tmpIcon.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0666);
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listener = Cc["@mozilla.org/network/downloader;1"]
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.createInstance(Ci.nsIDownloader);
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listener.init(downloadObserver, tmpIcon);
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} else {
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let pipe = Cc["@mozilla.org/pipe;1"]
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.createInstance(Ci.nsIPipe);
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pipe.init(true, true, 0, 0xffffffff, null);
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listener = Cc["@mozilla.org/network/simple-stream-listener;1"]
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.createInstance(Ci.nsISimpleStreamListener);
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listener.init(pipe.outputStream, {
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onStartRequest: function() {},
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onStopRequest: function(aRequest, aContext, aStatusCode) {
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pipe.outputStream.close();
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onIconDownloaded(aShell, mimeType, aStatusCode, pipe.inputStream, callback);
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}
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});
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}
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let channel = NetUtil.newChannel(iconURI);
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let CertUtils = { };
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Cu.import("resource://gre/modules/CertUtils.jsm", CertUtils);
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// Pass true to avoid optional redirect-cert-checking behavior.
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channel.notificationCallbacks = new CertUtils.BadCertHandler(true);
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channel.asyncOpen(listener, null);
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} catch(e) {
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throw("getIconFromURI - Failure getting icon (" + e + ")");
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}
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}
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function onIconDownloaded(aShell, aMimeType, aStatusCode, aIcon, aCallback) {
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if (Components.isSuccessCode(aStatusCode)) {
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aShell.processIcon(aMimeType, aIcon, aCallback);
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} else {
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aCallback.call(aShell);
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}
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}
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