gnome-shell/js/misc/fileUtils.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Params = imports.misc.params;
function listDirAsync(file, callback) {
let allFiles = [];
file.enumerate_children_async('standard::name,standard::type',
Gio.FileQueryInfoFlags.NONE,
GLib.PRIORITY_LOW, null, function (obj, res) {
let enumerator = obj.enumerate_children_finish(res);
function onNextFileComplete(obj, res) {
let files = obj.next_files_finish(res);
if (files.length) {
allFiles = allFiles.concat(files);
enumerator.next_files_async(100, GLib.PRIORITY_LOW, null, onNextFileComplete);
} else {
enumerator.close(null);
callback(allFiles);
}
}
enumerator.next_files_async(100, GLib.PRIORITY_LOW, null, onNextFileComplete);
});
}
function _collectFromDirectoryAsync(dir, loadState) {
function done() {
loadState.numLoading--;
if (loadState.loadedCallback &&
loadState.numLoading == 0)
loadState.loadedCallback(loadState.data);
}
dir.query_info_async('standard::type', Gio.FileQueryInfoFlags.NONE,
GLib.PRIORITY_DEFAULT, null, function(object, res) {
try {
object.query_info_finish(res);
} catch (e) {
if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.NOT_FOUND))
log(e.message);
done();
return;
}
listDirAsync(dir, Lang.bind(this, function(infos) {
for (let i = 0; i < infos.length; i++)
loadState.processFile(dir.get_child(infos[i].get_name()),
infos[i], loadState.data);
done();
}));
});
}
function collectFromDatadirsAsync(subdir, params) {
params = Params.parse(params, { includeUserDir: false,
processFile: null,
loadedCallback: null,
data: null });
let loadState = { data: params.data,
numLoading: 0,
loadedCallback: params.loadedCallback,
processFile: params.processFile };
if (params.processFile == null) {
if (params.loadedCallback)
params.loadedCallback(params.data);
return;
}
let dataDirs = GLib.get_system_data_dirs();
if (params.includeUserDir)
dataDirs.unshift(GLib.get_user_data_dir());
loadState.numLoading = dataDirs.length;
for (let i = 0; i < dataDirs.length; i++) {
let path = GLib.build_filenamev([dataDirs[i], 'gnome-shell', subdir]);
let dir = Gio.File.new_for_path(path);
_collectFromDirectoryAsync(dir, loadState);
}
}
function deleteGFile(file) {
// Work around 'delete' being a keyword in JS.
return file['delete'](null);
}
function recursivelyDeleteDir(dir, deleteParent) {
let children = dir.enumerate_children('standard::name,standard::type',
Gio.FileQueryInfoFlags.NONE, null);
let info, child;
while ((info = children.next_file(null)) != null) {
let type = info.get_file_type();
let child = dir.get_child(info.get_name());
if (type == Gio.FileType.REGULAR)
deleteGFile(child);
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else if (type == Gio.FileType.DIRECTORY)
recursivelyDeleteDir(child, true);
}
if (deleteParent)
deleteGFile(dir);
}
function recursivelyMoveDir(srcDir, destDir) {
let children = srcDir.enumerate_children('standard::name,standard::type',
Gio.FileQueryInfoFlags.NONE, null);
if (!destDir.query_exists(null))
destDir.make_directory_with_parents(null);
let info, child;
while ((info = children.next_file(null)) != null) {
let type = info.get_file_type();
let srcChild = srcDir.get_child(info.get_name());
let destChild = destDir.get_child(info.get_name());
log([srcChild.get_path(), destChild.get_path()]);
if (type == Gio.FileType.REGULAR)
srcChild.move(destChild, Gio.FileCopyFlags.NONE, null, null);
else if (type == Gio.FileType.DIRECTORY)
recursivelyMoveDir(srcChild, destChild);
}
}