LumeWeb
/
filer
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Support for rmdir.

This commit is contained in:
Alan Kligman 2012-10-11 14:58:36 -04:00
parent f762cf74b1
commit f4189c7e8b
2 changed files with 80 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
examples/test.html
View File

@ -18,9 +18,14 @@ require.config({
require(["../../javascript-debug/debug", "src/filesystem"], function(debug, IDBFS) {
IDBFS.mount("default", function(error, fs) {
console.log("mount complete");
fs.mkdir("/tmp", function(error) {
fs.dump(document.getElementById("stdout"));
fs.mkdir("/tmp/0", function(error) {
fs.mkdir("/tmp/1", function(error) {
fs.rmdir("/tmp/0", function(error) {
fs.dump(document.getElementById("stdout"));
});
});
});
});
}, true);

87
src/filesystem.js
View File

@ -14,19 +14,12 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
define(function(require) {
// 'use strict';
var when = require("when");
var debug = require("debug");
var _ = require("lodash");
var indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
var BlobBuilder = window.BlobBuilder || window.MozBlobBuilder || window.WebKitBlobBuilder;
var TEMPORARY = 0;
var PERSISTENT = 1;
var MIME_DIRECTORY = "application/directory";
var MIME_FILE = "application/file";
function guid() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
@ -405,6 +398,8 @@ define(function(require) {
var NAME_INDEX_KEY_PATH = "name";
var PARENT_INDEX = "parent";
var PARENT_INDEX_KEY_PATH = "parent";
var MIME_DIRECTORY = "application/directory";
var MIME_FILE = "application/file";
var IDB_RO = "readonly";
var IDB_RW = "readwrite";
@ -414,14 +409,17 @@ define(function(require) {
this.code = code;
}
// Types
var T_OPEN = 0x0;
var T_MKDIR = 0x1;
var T_STAT = 0x2;
var T_NONE = 0x3;
var T_NONE = 0x0;
var T_OPEN = 0x1;
var T_MKDIR = 0x2;
var T_STAT = 0x3;
var T_RMDIR = 0x4;
// Codes
var E_EXIST = 0x0;
var E_ISDIR = 0x1;
var E_NOENT = 0x2;
var E_BUSY = 0x3;
var E_NOTEMPTY = 0x4;
function genericIDBErrorHandler(scope, callback) {
return function(error) {
@ -476,7 +474,7 @@ define(function(require) {
}
function mkdir(transaction, pathname, callback) {
debug.info("mkdir invoked");
debug.info("mkdir -->");
transaction = transaction || db.transaction([METADATA_STORE_NAME], IDB_RW);
var store = transaction.objectStore(METADATA_STORE_NAME);
var nameIndex = store.index(NAME_INDEX);
@ -491,7 +489,7 @@ define(function(require) {
var entry = makeDirectoryEntry(pathname, Date.now());
var directoryRequest = store.put(entry, pathname);
directoryRequest.onsuccess = function(e) {
debug.info("mkdir complete");
debug.info("mkdir <--");
if(callback && "function" === typeof callback) {
callback.call(undefined, undefined);
}
@ -503,11 +501,67 @@ define(function(require) {
}
function rmdir(pathname, callback) {
debug.info("rmdir -->");
var onerror = genericIDBErrorHandler("rmdir", callback);
if("/" === pathname) {
onerror(new IDBFSError(T_RMDIR, E_BUSY));
return;
}
transaction = db.transaction([METADATA_STORE_NAME, FILE_STORE_NAME], IDB_RW);
var metaStore = transaction.objectStore(METADATA_STORE_NAME);
var nameIndex = metaStore.index(NAME_INDEX);
var parentIndex = metaStore.index(PARENT_INDEX);
var getRequest = nameIndex.get(pathname);
getRequest.onsuccess = function(e) {
var result = e.target.result;
if(!result) {
onerror(new IDBFSError(T_RMDIR, E_NOENT));
return;
} else {
var contentRequest = parentIndex.get(pathname);
contentRequest.onsuccess = function(e) {
var result = e.target.result;
if(result) {
onerror(new IDBFSError(T_RMDIR, E_NOTEMPTY));
return;
} else {
var removeRequest = metaStore.delete(pathname);
removeRequest.onsuccess = function(e) {
debug.info("rmdir <--");
if(callback && "function" === typeof callback) {
callback.call(undefined, undefined);
}
};
removeRequest.onerror = onerror;
}
};
contentRequest.onerror = onerror;
}
};
getRequest.onerror = onerror;
}
function stat(transaction, pathname, callback) {
debug.info("stat -->");
transaction = transaction || db.transaction([METADATA_STORE_NAME], IDB_RO);
var store = transaction.objectStore(METADATA_STORE_NAME);
var nameIndex = store.index(NAME_INDEX);
var onerror = genericIDBErrorHandler("stat", callback);
var getRequest = nameIndex.get(pathname);
getRequest.onsuccess = function(e) {
var result = e.target.result;
if(!result) {
onerror(new IDBFSError(T_STAT, E_NOENT));
return;
} else {
debug.info("stat <--");
if(callback && "function" === typeof callback) {
callback.call(undefined, undefined, result);
}
}
};
}
function link(oldpath, newpath, callback) {
@ -562,6 +616,7 @@ define(function(require) {
}
function mount(name, callback, optFormat) {
debug.info("mount -->");
optFormat = (undefined === optFormat) ? false : optFormat;
var onerror = genericIDBErrorHandler("mount", callback);
var openRequest = indexedDB.open(name);
@ -587,14 +642,15 @@ define(function(require) {
if(optFormat) {
var transaction = db.transaction([METADATA_STORE_NAME], IDB_RW);
var store = transaction.objectStore(METADATA_STORE_NAME);
debug.info("format required");
debug.info("format -->");
var clearRequest = store.clear();
clearRequest.onsuccess = function() {
fs.mkdir(transaction, "/", function(error) {
if(error) {
onerror(error);
} else {
debug.info("format complete");
debug.info("format <--");
debug.info("mount <--");
if(callback && "function" === typeof callback) {
callback.call(undefined, undefined, fs.api());
}
@ -603,6 +659,7 @@ define(function(require) {
};
clearRequest.onerror = onerror;
} else {
debug.info("mount <--");
if(callback && "function" === typeof callback) {
callback.call(undefined, undefined, fs.api());
}