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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Custom binding for the Media Gallery API.
var binding = require('binding').Binding.create('mediaGalleries');
var mediaGalleriesNatives = requireNative('mediaGalleries');
var blobNatives = requireNative('blob_natives');
var mediaGalleriesMetadata = {};
binding.registerCustomHook(function(bindingsAPI, extensionId) {
var apiFunctions = bindingsAPI.apiFunctions;
// getMediaFileSystems uses a custom callback so that it can instantiate and
// return an array of file system objects.
apiFunctions.setCustomCallback('getMediaFileSystems',
function(name, request, response) {
var result = null;
mediaGalleriesMetadata = {}; // Clear any previous metadata.
if (response) {
result = [];
for (var i = 0; i < response.length; i++) {
var filesystem = mediaGalleriesNatives.GetMediaFileSystemObject(
response[i].fsid);
$Array.push(result, filesystem);
var metadata = response[i];
delete metadata.fsid;
mediaGalleriesMetadata[filesystem.name] = metadata;
}
}
if (request.callback)
request.callback(result);
request.callback = null;
});
apiFunctions.setHandleRequest('getMediaFileSystemMetadata',
function(filesystem) {
if (filesystem && filesystem.name &&
mediaGalleriesMetadata[filesystem.name]) {
return mediaGalleriesMetadata[filesystem.name];
}
return {};
});
apiFunctions.setUpdateArgumentsPostValidate('getMetadata',
function(mediaFile, options, callback) {
var blobUuid = blobNatives.GetBlobUuid(mediaFile)
return [blobUuid, options, callback];
});
});
exports.binding = binding.generate();
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