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(function() {
/* constructor */
function PhotoFloat() {
this.albumCache = [];
}
/* public member functions */
PhotoFloat.prototype.album = function(subalbum, callback, error) {
var cacheKey, ajaxOptions, self;
if (typeof subalbum.photos !== "undefined" && subalbum.photos !== null) {
callback(subalbum);
return;
}
if (Object.prototype.toString.call(subalbum).slice(8, -1) === "String")
cacheKey = subalbum;
else
cacheKey = PhotoFloat.cachePath(subalbum.parent.path + "/" + subalbum.path);
if (this.albumCache.hasOwnProperty(cacheKey)) {
callback(this.albumCache[cacheKey]);
return;
}
self = this;
ajaxOptions = {
type: "GET",
dataType: "json",
url: "cache/" + cacheKey + ".json",
success: function(album) {
var i;
for (i = 0; i < album.albums.length; ++i)
album.albums[i].parent = album;
for (i = 0; i < album.photos.length; ++i)
album.photos[i].parent = album;
self.albumCache[cacheKey] = album;
callback(album);
}
};
if (typeof error !== "undefined" && error !== null) {
ajaxOptions.error = function(jqXHR, textStatus, errorThrown) {
error(jqXHR.status);
};
}
$.ajax(ajaxOptions);
};
PhotoFloat.prototype.albumPhoto = function(subalbum, callback, error) {
var nextAlbum, self;
self = this;
nextAlbum = function(album) {
var index = Math.floor(Math.random() * (album.photos.length + album.albums.length));
if (index >= album.photos.length) {
index -= album.photos.length;
self.album(album.albums[index], nextAlbum, error);
} else
callback(album, album.photos[index]);
};
if (typeof subalbum.photos !== "undefined" && subalbum.photos !== null)
nextAlbum(subalbum);
else
this.album(subalbum, nextAlbum, error);
};
PhotoFloat.prototype.parseHash = function(hash, callback, error) {
var index, album, photo;
hash = PhotoFloat.cleanHash(hash);
index = hash.lastIndexOf("/");
if (!hash.length) {
album = PhotoFloat.cachePath("root");
photo = null;
} else if (index !== -1 && index !== hash.length - 1) {
photo = hash.substring(index + 1);
album = hash.substring(0, index);
} else {
album = hash;
photo = null;
}
this.album(album, function(theAlbum) {
var i = -1;
if (photo !== null) {
for (i = 0; i < theAlbum.photos.length; ++i) {
if (PhotoFloat.cachePath(theAlbum.photos[i].name) === photo) {
photo = theAlbum.photos[i];
break;
}
}
if (i >= theAlbum.photos.length) {
photo = null;
i = -1;
}
}
callback(theAlbum, photo, i);
}, error);
};
PhotoFloat.prototype.authenticate = function(password, result) {
$.ajax({
type: "GET",
dataType: "text",
url: "auth?password=" + password,
success: function() {
result(true);
},
error: function() {
result(false);
}
});
};
/* static functions */
PhotoFloat.cachePath = function(path) {
if (path === "")
return "root";
if (path.charAt(0) === "/")
path = path.substring(1);
path = path
.replace(/ /g, "_")
.replace(/\//g, "-")
.replace(/\(/g, "")
.replace(/\)/g, "")
.replace(/#/g, "")
.replace(/&/g, "")
.replace(/,/g, "")
.replace(/\[/g, "")
.replace(/\]/g, "")
.replace(/"/g, "")
.replace(/'/g, "")
.replace(/_-_/g, "-")
.toLowerCase();
while (path.indexOf("--") !== -1)
path = path.replace(/--/g, "-");
while (path.indexOf("__") !== -1)
path = path.replace(/__/g, "_");
return path;
};
PhotoFloat.photoHash = function(album, photo) {
return PhotoFloat.albumHash(album) + "/" + PhotoFloat.cachePath(photo.name);
};
PhotoFloat.albumHash = function(album) {
if (typeof album.photos !== "undefined" && album.photos !== null)
return PhotoFloat.cachePath(album.path);
return PhotoFloat.cachePath(album.parent.path + "/" + album.path);
};
PhotoFloat.photoPath = function(album, photo, size, square) {
var suffix;
if (square)
suffix = size.toString() + "s";
else
suffix = size.toString();
return "cache/" + PhotoFloat.cachePath(PhotoFloat.photoHash(album, photo) + "_" + suffix + ".jpg");
};
PhotoFloat.originalPhotoPath = function(album, photo) {
return "albums/" + album.path + "/" + photo.name;
};
PhotoFloat.trimExtension = function(name) {
var index = name.lastIndexOf(".");
if (index !== -1)
return name.substring(0, index);
return name;
};
PhotoFloat.cleanHash = function(hash) {
while (hash.length) {
if (hash.charAt(0) === "#")
hash = hash.substring(1);
else if (hash.charAt(0) === "!")
hash = hash.substring(1);
else if (hash.charAt(0) === "/")
hash = hash.substring(1);
else if (hash.substring(0, 3) === "%21")
hash = hash.substring(3);
else if (hash.charAt(hash.length - 1) === "/")
hash = hash.substring(0, hash.length - 1);
else
break;
}
return hash;
};
/* make static methods callable as member functions */
PhotoFloat.prototype.cachePath = PhotoFloat.cachePath;
PhotoFloat.prototype.photoHash = PhotoFloat.photoHash;
PhotoFloat.prototype.albumHash = PhotoFloat.albumHash;
PhotoFloat.prototype.photoPath = PhotoFloat.photoPath;
PhotoFloat.prototype.originalPhotoPath = PhotoFloat.originalPhotoPath;
PhotoFloat.prototype.trimExtension = PhotoFloat.trimExtension;
PhotoFloat.prototype.cleanHash = PhotoFloat.cleanHash;
/* expose class globally */
window.PhotoFloat = PhotoFloat;
}());
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