teramako

nsIMIMEService

getFromTypeAndExtension(/*string*/aMimeType,/*string*/aFileExt)

return nsIMIMEInfo

getPrimaryExtension(/*string*/aMIMEType,/*string*/aFileExt)

return mimeTypeString

getTypeFromExtension(/*string*/aFileExt)

return mimeTypeString

getTypeFromFile(/*nsIFile*/aFile)

なんか使えない

getTypeFromURI(/*nsIURI*/ aURI)

return mimeTypeString

Example

var fileName = "foo.tar.gz";
var mts = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
var mimeType = mts.getFileFromExtension(fileName);
// "application/x-compressed-tar"
var mimeInfo = mts.getFromTypeAndExtension(mimeType, fileName);
/*
[xpconnect wrapped nsIMIMEInfo]::
MIMEType: "[xpconnect wrapped nsimimeservice]"
QueryInterface: function QueryInterface() { ... }
alwaysAsk: 1
alwaysAskBeforeHandling: true
appendExtension: function appendExtension() { ... }
defaultDescription: "平文テキストドキュメント"
description: "平文テキストドキュメント"
equals: function equals() { ... }
extensionExists: function extensionExists() { ... }
getFileExtensions: function getFileExtensions() { ... }
handleInternally: 3
hasDefaultHandler: false
launchWithFile: function launchWithFile() { ... }
launchWithURI: function launchWithURI() { ... }
macCreator: <no value>
macType: <no value>
possibleApplicationHandlers: [xpconnect wrapped nsIMutableArray]
possibleLocalHandlers: <no value>
preferredAction: 4
preferredApplicationHandler: null
primaryExtension: <no value>
saveToDisk: 0
setFileExtensions: function setFileExtensions() { ... }
type: "[xpconnect wrapped nsimimeservice]"
useHelperApp: 2
useSystemDefault: 4
*/

• nsIScriptableUnescapeHTML - MDC
• nsIScriptableUnescapeHTML - MDC

var htmlString = "<p>hoge<br>hoge</p>";
var rootElm = document.createElementNS("http://www.w3.org/1999/xhtml","div");
var uhService = Cc["@mozilla.org/feed-unescapehtml;1"]
                    .getService(Ci.nsIScriptableUnescapeHTML);
var htmlFragment = uhService.parseFragment(htmlString, false, null, rootElm); //DocumentFragment

• nsISearchEngine
• @mozilla.org/browser/search-service;1

const Cc = Components.classes;
const Ci = Components.interfaces;
const responseType = 'application/x-suggestion+json';
var searchWord = 'hogehoge'
var ss = Cc['@mozilla.org/browser/search-searvice;1']
         .getService(Ci.nsIBrowserSearchService);
var googleSE = ss.getEngineByAlias('google'); //nsISearchEngine
if (googleSE.supportsResponseType(responseType)) {
    var submission = googleSE.getSubmission(searchWord, responseType); //nsISearchSubmission
    var uri = submission.uri; //nsIURI
    var uri_spec = uri.asciiSpec; //'http://suggestqueries.google.com/complete/search?output=firefox&client=firefox&hl=ja&qu=hogehoge
    // ....;
}

Class

@mozilla.org/system-info;1

Interface

nsIPropertyBag2

const Cc = Components.classes;
const Ci = Components.interfaces;
var sysInfo = Cc['@mozilla.org/system-info;1'].getService(Ci.nsIPropertyBag2);
var pratform = sysInfo.getProperty('name');

Properties and Example

• name
  • Windows_NT
  • Mac OS X
  • Linux
• version
  • 5.1
• arch
  • x86
• host
  • femo

Class

@mozilla.org/process/environment;1

Interface

nsIEnvironment

const Cc = Components.classes;
const Ci = Components.interfaces;
var env = Cc['@mozilla.org/process/environment;1'].getService(Ci.nsIEnvironment);
var path = env.get('path');

Method

Boolean exists (String aName)

Check the existence of an environment variable.
環境変数が存在するかどうか判定する

String get (String aName)

returns the value of the env varible. An empty string will be returned when hte env variable dose not exist or when the value itself is an empty string - please use exists() to probe whether the env variable exists or not.
環境変数の値を返す。環境変数が存在しない、または、空文字列の場合、空文字列が返る。exists()メソッドを使って事前に判定してください。

String set (String aName, String aValue)

Set the value of an environment variable.
環境変数を設定する