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// Copyright 2013 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 fileSystemProvider API.
var binding = require('binding').Binding.create('fileSystemProvider');
var fileSystemProviderInternal =
require('binding').Binding.create('fileSystemProviderInternal').generate();
var eventBindings = require('event_bindings');
var fileSystemNatives = requireNative('file_system_natives');
var GetDOMError = fileSystemNatives.GetDOMError;
/**
* Annotates a date with its serialized value.
* @param {Date} date Input date.
* @return {Date} Date with an extra <code>value</code> attribute.
*/
function annotateDate(date) {
// Copy in case the input date is frozen.
var result = new Date(date.getTime());
result.value = result.toString();
return result;
}
/**
* Annotates an entry metadata by serializing its modifiedTime value.
* @param {EntryMetadata} metadata Input metadata.
* @return {EntryMetadata} metadata Annotated metadata, which can be passed
* back to the C++ layer.
*/
function annotateMetadata(metadata) {
var result = {
isDirectory: metadata.isDirectory,
name: metadata.name,
size: metadata.size,
modificationTime: annotateDate(metadata.modificationTime)
};
return result;
}
binding.registerCustomHook(function(bindingsAPI) {
var apiFunctions = bindingsAPI.apiFunctions;
apiFunctions.setUpdateArgumentsPostValidate(
'mount',
function(fileSystemId, displayName, successCallback, errorCallback) {
// Piggyback the error callback onto the success callback,
// so we can use the error callback later.
successCallback.errorCallback_ = errorCallback;
return [fileSystemId, displayName, successCallback];
});
apiFunctions.setCustomCallback(
'mount',
function(name, request, response) {
var domError = null;
if (request.callback && response) {
// DOMError is present only if mount() failed.
if (response[0]) {
// Convert a Dictionary to a DOMError.
domError = GetDOMError(response[0].name, response[0].message);
response.length = 1;
}
var successCallback = request.callback;
var errorCallback = request.callback.errorCallback_;
delete request.callback;
if (domError)
errorCallback(domError);
else
successCallback();
}
});
apiFunctions.setUpdateArgumentsPostValidate(
'unmount',
function(fileSystemId, successCallback, errorCallback) {
// Piggyback the error callback onto the success callback,
// so we can use the error callback later.
successCallback.errorCallback_ = errorCallback;
return [fileSystemId, successCallback];
});
apiFunctions.setCustomCallback(
'unmount',
function(name, request, response) {
var domError = null;
if (request.callback) {
// DOMError is present only if mount() failed.
if (response && response[0]) {
// Convert a Dictionary to a DOMError.
domError = GetDOMError(response[0].name, response[0].message);
response.length = 1;
}
var successCallback = request.callback;
var errorCallback = request.callback.errorCallback_;
delete request.callback;
if (domError)
errorCallback(domError);
else
successCallback();
}
});
});
eventBindings.registerArgumentMassager(
'fileSystemProvider.onUnmountRequested',
function(args, dispatch) {
var fileSystemId = args[0];
var requestId = args[1];
var onSuccessCallback = function() {
fileSystemProviderInternal.unmountRequestedSuccess(
fileSystemId, requestId);
};
var onErrorCallback = function(error) {
fileSystemProviderInternal.unmountRequestedError(
fileSystemId, requestId, error);
}
dispatch([fileSystemId, onSuccessCallback, onErrorCallback]);
});
eventBindings.registerArgumentMassager(
'fileSystemProvider.onGetMetadataRequested',
function(args, dispatch) {
var fileSystemId = args[0];
var requestId = args[1];
var entryPath = args[2];
var onSuccessCallback = function(metadata) {
fileSystemProviderInternal.getMetadataRequestedSuccess(
fileSystemId, requestId, annotateMetadata(metadata));
};
var onErrorCallback = function(error) {
fileSystemProviderInternal.getMetadataRequestedError(
fileSystemId, requestId, error);
}
dispatch([fileSystemId, entryPath, onSuccessCallback, onErrorCallback]);
});
eventBindings.registerArgumentMassager(
'fileSystemProvider.onReadDirectoryRequested',
function(args, dispatch) {
var fileSystemId = args[0];
var requestId = args[1];
var directoryPath = args[2];
var onSuccessCallback = function(entries, hasNext) {
var annotatedEntries = entries.map(annotateMetadata);
fileSystemProviderInternal.readDirectoryRequestedSuccess(
fileSystemId, requestId, annotatedEntries, hasNext);
};
var onErrorCallback = function(error) {
fileSystemProviderInternal.readDirectoryRequestedError(
fileSystemId, requestId, error);
}
dispatch([
fileSystemId, directoryPath, onSuccessCallback, onErrorCallback]);
});
eventBindings.registerArgumentMassager(
'fileSystemProvider.onOpenFileRequested',
function(args, dispatch) {
var fileSystemId = args[0];
var requestId = args[1];
var filePath = args[2];
var mode = args[3];
var create = args[4];
var onSuccessCallback = function() {
fileSystemProviderInternal.openFileRequestedSuccess(
fileSystemId, requestId);
};
var onErrorCallback = function(error) {
fileSystemProviderInternal.openFileRequestedError(
fileSystemId, requestId, error);
}
dispatch([fileSystemId, requestId, filePath, mode, create,
onSuccessCallback, onErrorCallback]);
});
eventBindings.registerArgumentMassager(
'fileSystemProvider.onCloseFileRequested',
function(args, dispatch) {
var fileSystemId = args[0];
var requestId = args[1];
var openRequestId = args[2];
var onSuccessCallback = function() {
fileSystemProviderInternal.closeFileRequestedSuccess(
fileSystemId, requestId);
};
var onErrorCallback = function(error) {
fileSystemProviderInternal.closeFileRequestedError(
fileSystemId, requestId, error);
}
dispatch([fileSystemId, openRequestId, onSuccessCallback,
onErrorCallback]);
});
eventBindings.registerArgumentMassager(
'fileSystemProvider.onReadFileRequested',
function(args, dispatch) {
var fileSystemId = args[0];
var requestId = args[1];
var openRequestId = args[2];
var offset = args[3];
var length = args[4];
var onSuccessCallback = function(data, hasNext) {
fileSystemProviderInternal.readFileRequestedSuccess(
fileSystemId, requestId, data, hasNext);
};
var onErrorCallback = function(error) {
fileSystemProviderInternal.readFileRequestedError(
fileSystemId, requestId, error);
}
dispatch([fileSystemId, openRequestId, offset, length, onSuccessCallback,
onErrorCallback]);
});
exports.binding = binding.generate();
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