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mkdir implementation.

This commit is contained in:
Alan Kligman 2012-10-07 22:53:18 -04:00
parent 46821604fb
commit 920bf44cae
2 changed files with 44 additions and 53 deletions
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1
examples/test.html
View File

@ -17,6 +17,7 @@ require(["../../javascript-debug/debug", "src/filesystem"], function(debug, File
debug.log("filesystem state: ", fs.state); debug.log("filesystem state: ", fs.state);
fs.then(function(fs) { fs.then(function(fs) {
debug.log("filesystem state: ", fs.state); debug.log("filesystem state: ", fs.state);
fs.mkdir("/tmp");
}); });
}); });
</script> </script>

94
src/filesystem.js
View File

@ -47,65 +47,26 @@ define(function(require) {
FileError.TYPE_MISMATCH_ERR = 11; FileError.TYPE_MISMATCH_ERR = 11;
FileError.PATH_EXISTS_ERR = 12; FileError.PATH_EXISTS_ERR = 12;
function Entry() {} function DirectoryError(code) {
Entry.prototype.move = function move(parent, newName, successCallback, errorCallback) { this.code = code;
}; // FIXME: add a message field with the text error
Entry.prototype.copy = function copy(parent, newName, successCallback, errorCallback) {
};
Entry.prototype.remove = function remove(successCallback, errorCallback) {
};
Entry.prototype.getParent = function getParent(successCallback, errorCallback) {
};
Entry.prototype.getMetadata = function getMetadata(successCallback, errorCallback) {
};
/*Entry.prototype.toUrl = function toUrl(mimeType) {
};*/
function DirectoryEntry(fs, path, name, parent) {
this.isFile = false;
this.isDirectory = true;
this.name = name;
this.path = path; // FIXME: account for the parent path
this.filesystem = fs;
this.parent = parent;
}
DirectoryEntry.prototype = new Entry();
DirectoryEntry.prototype.createReader = function createReader() {
};
DirectoryEntry.prototype.removeRecursively = function removeRecursively(successCallback, errorCallback) {
};
DirectoryEntry.prototype.getFile = function getFile(path, options, successCallback, errorCallback) {
};
DirectoryEntry.prototype.getDirectory = function getDirectory(path, options, successCallback, errorCallback) {
};
function FileEntry(fs, path, name, parent) {
this.isFile = true;
this.isDirectory = false;
this.name = name;
this.path = path; // FIXME: account for the parent path
this.filesystem = fs;
this.parent = parent;
}
FileEntry.prototype = new Entry();
FileEntry.prototype.createWriter = function createWriter(successCallback, errorCallback) {
};
FileEntry.prototype.file = function file(successCallback, errorCallback) {
}; };
DirectoryError.PATH_EXISTS_ERR = 1;
DirectoryError.MISSING_PATH_COMPONENT_ERR = 2;
var RO = "readonly", var RO = "readonly",
RW = "readwrite"; RW = "readwrite";
function FileSystem(name, optFormat) { function FileSystem(name, optFormat) {
var fs = this; var fs = this;
var FILES = "files"; fs.OBJECT_STORE_NAME = "files";
fs.name = name || "default"; fs.name = name || "default";
fs.pending = {}; fs.pending = {};
fs.state = FileSystem.UNINITIALIZED; fs.state = FileSystem.UNINITIALIZED;
var deferred; var deferred;
fs.then; fs.then;
fs.root; fs.db;
function updateState() { function updateState() {
if(FileSystem.READY === fs.state && Object.keys(fs.pending).length > 0) { if(FileSystem.READY === fs.state && Object.keys(fs.pending).length > 0) {
@ -145,7 +106,6 @@ define(function(require) {
return request; return request;
} }
var db;
var format = undefined !== optFormat ? optFormat : false; var format = undefined !== optFormat ? optFormat : false;
var deferred = when.defer(); var deferred = when.defer();
fs.then = deferred.promise.then; fs.then = deferred.promise.then;
@ -155,11 +115,12 @@ define(function(require) {
fs.state = FileSystem.PENDING; fs.state = FileSystem.PENDING;
openRequest.onsuccess = function(e) { openRequest.onsuccess = function(e) {
db = e.target.result; fs.db = e.target.result;
var db = fs.db;
var transaction = db.transaction([fs.OBJECT_STORE_NAME], RW);
var store = transaction.objectStore(fs.OBJECT_STORE_NAME);
if(format) { if(format) {
debug.info("format required"); debug.info("format required");
var transaction = db.transaction([FILES], RW);
var store = transaction.objectStore(FILES);
var formatRequest = queuePending(store.put({}, "/")); var formatRequest = queuePending(store.put({}, "/"));
formatRequest.onsuccess = function(e) { formatRequest.onsuccess = function(e) {
debug.info("format complete"); debug.info("format complete");
@ -175,8 +136,8 @@ define(function(require) {
db.deleteObjectStore("files"); db.deleteObjectStore("files");
} }
var store = db.createObjectStore("files"); var store = db.createObjectStore("files");
store.createIndex("parent", "parent"); store.createIndex("parent", "parent", {unique: false});
store.createIndex("name", "name"); store.createIndex("name", "name", {unique: true});
format = true; format = true;
}; };
@ -184,6 +145,35 @@ define(function(require) {
openRequest.onerror = function(e) { openRequest.onerror = function(e) {
clearPending(openRequest); clearPending(openRequest);
}; };
// API
this.mkdir = function mkdir(path) {
debug.info("mkdir");
var db = fs.db;
var d = when.defer();
var transaction = db.transaction([this.OBJECT_STORE_NAME], RW);
var store = transaction.objectStore(fs.OBJECT_STORE_NAME);
var nameIndex = store.index("name");
var getRequest = queuePending(nameIndex.get(path));
getRequest.onsuccess = function(e) {
clearPending(getRequest);
var result = e.target.result;
if(result) {
debug.info("mkdir PATH_EXISTS_ERR");
d.reject(new DirectoryError(DirectoryError.PATH_EXISTS_ERR));
} else {
var directoryRequest = queuePending(store.put({}, path));
directoryRequest.onsuccess = function(e) {
debug.info("mkdir complete");
clearPending(directoryRequest);
d.resolve();
};
}
};
return d.promise;
}
} }
FileSystem.READY = 0; FileSystem.READY = 0;
FileSystem.PENDING = 1; FileSystem.PENDING = 1;