c528401b62
Processing files from a subdirectory of various share/gnome-shell directories asynchronously is a common enough pattern to share the common code. https://bugzilla.gnome.org/show_bug.cgi?id=689304
122 lines
4.4 KiB
JavaScript
122 lines
4.4 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Gio = imports.gi.Gio;
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const GLib = imports.gi.GLib;
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const Lang = imports.lang;
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const Params = imports.misc.params;
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function listDirAsync(file, callback) {
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let allFiles = [];
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file.enumerate_children_async(Gio.FILE_ATTRIBUTE_STANDARD_NAME,
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Gio.FileQueryInfoFlags.NONE,
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GLib.PRIORITY_LOW, null, function (obj, res) {
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let enumerator = obj.enumerate_children_finish(res);
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function onNextFileComplete(obj, res) {
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let files = obj.next_files_finish(res);
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if (files.length) {
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allFiles = allFiles.concat(files);
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enumerator.next_files_async(100, GLib.PRIORITY_LOW, null, onNextFileComplete);
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} else {
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enumerator.close(null);
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callback(allFiles);
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}
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}
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enumerator.next_files_async(100, GLib.PRIORITY_LOW, null, onNextFileComplete);
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});
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}
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function _collectFromDirectoryAsync(dir, loadState) {
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dir.query_info_async('standard:type', Gio.FileQueryInfoFlags.NONE,
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GLib.PRIORITY_DEFAULT, null, function(object, res) {
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try {
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object.query_info_finish(res);
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} catch (e) {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.NOT_FOUND))
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log(e.message);
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return;
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}
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loadState.numLoading++;
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listDirAsync(dir, Lang.bind(this, function(infos) {
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for (let i = 0; i < infos.length; i++)
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loadState.processFile(dir.get_child(infos[i].get_name()),
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infos[i], loadState.data);
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loadState.numLoading--;
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if (loadState.loadedCallback &&
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loadState.numLoading == 0)
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loadState.loadedCallback(loadState.data);
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}));
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});
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}
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function collectFromDatadirsAsync(subdir, params) {
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params = Params.parse(params, { includeUserDir: false,
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processFile: null,
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loadedCallback: null,
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data: null });
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let loadState = { data: params.data,
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numLoading: 0,
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loadedCallback: params.loadedCallback,
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processFile: params.processFile };
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if (params.processFile == null) {
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if (params.loadedCallback)
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params.loadedCallback(params.data);
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return;
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}
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let dataDirs = GLib.get_system_data_dirs();
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if (params.includeUserDir)
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dataDirs.unshift(GLib.get_user_data_dir());
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for (let i = 0; i < dataDirs.length; i++) {
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let path = GLib.build_filenamev([dataDirs[i], 'gnome-shell', subdir]);
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let dir = Gio.File.new_for_path(path);
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_collectFromDirectoryAsync(dir, loadState);
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}
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}
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function deleteGFile(file) {
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// Work around 'delete' being a keyword in JS.
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return file['delete'](null);
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}
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function recursivelyDeleteDir(dir, deleteParent) {
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let children = dir.enumerate_children('standard::name,standard::type',
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Gio.FileQueryInfoFlags.NONE, null);
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let info, child;
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while ((info = children.next_file(null)) != null) {
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let type = info.get_file_type();
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let child = dir.get_child(info.get_name());
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if (type == Gio.FileType.REGULAR)
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deleteGFile(child);
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else if (type == Gio.FileType.DIRECTORY)
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recursivelyDeleteDir(child, true);
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}
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if (deleteParent)
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deleteGFile(dir);
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}
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function recursivelyMoveDir(srcDir, destDir) {
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let children = srcDir.enumerate_children('standard::name,standard::type',
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Gio.FileQueryInfoFlags.NONE, null);
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if (!destDir.query_exists(null))
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destDir.make_directory_with_parents(null);
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let info, child;
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while ((info = children.next_file(null)) != null) {
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let type = info.get_file_type();
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let srcChild = srcDir.get_child(info.get_name());
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let destChild = destDir.get_child(info.get_name());
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log([srcChild.get_path(), destChild.get_path()]);
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if (type == Gio.FileType.REGULAR)
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srcChild.move(destChild, Gio.FileCopyFlags.NONE, null, null);
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else if (type == Gio.FileType.DIRECTORY)
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recursivelyMoveDir(srcChild, destChild);
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}
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}
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