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Handle input streams and other sources in Zotero.File.getContentsAsync()

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Dan Stillman 2013-08-20 12:42:07 -04:00
parent 89c5690899
commit 8fe02d8b71
1 changed files with 10 additions and 9 deletions
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19
chrome/content/zotero/xpcom/file.js
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@ -159,23 +159,24 @@ Zotero.File = new function(){
/**
* Get the contents of a file or input stream asynchronously
* @param {nsIFile|nsIInputStream} file The file to read
* Get the contents of a text source asynchronously
*
* @param {nsIURI|nsIFile|string spec|nsIChannel|nsIInputStream} source The source to read
* @param {String} [charset] The character set; defaults to UTF-8
* @param {Integer} [maxLength] The maximum number of characters to read
* @return {Promise} A Q promise that is resolved with the contents of the file
*/
this.getContentsAsync = function getContentsAsync(file, charset, maxLength) {
charset = charset ? Zotero.CharacterSets.getName(charset) : "UTF-8";
var deferred = Q.defer(),
channel = NetUtil.newChannel(file, charset);
NetUtil.asyncFetch(channel, function(inputStream, status) {
this.getContentsAsync = function getContentsAsync(source, charset) {
var options = {
charset: charset ? Zotero.CharacterSets.getName(charset) : "UTF-8"
};
var deferred = Q.defer();
NetUtil.asyncFetch(source, function(inputStream, status) {
if (!Components.isSuccessCode(status)) {
deferred.reject(new Components.Exception("File read operation failed", status));
return;
}
deferred.resolve(NetUtil.readInputStreamToString(inputStream, inputStream.available()));
deferred.resolve(NetUtil.readInputStreamToString(inputStream, inputStream.available(), options));
});
return deferred.promise;
};