server/apps/gallery/js/albums.js
2011-12-21 21:55:52 +01:00

94 lines
3.2 KiB
JavaScript

Albums={
// album item in this array should look as follow
// {name: string,
// numOfCovers: int}
//
// previews array should be an array of base64 decoded images
// to display to user as preview picture when scrolling throught
// the album cover
albums:new Array(),
// add simply adds new album to internal structure
// however albums names must be unique so other
// album with the same name wont be insered,
// and false will be returned
// true on success
add: function(album_name, num, bgPath) {
for (var a in Albums.albums) {
if (a.name == album_name) {
return false;
}
}
Albums.albums.push({name: album_name, numOfCovers: num, backgroundPath: bgPath});
return true;
},
// remove element with given name
// returns remove element or undefined if no such element was present
remove: function(name) {
var i = -1, tmp = 0;
for (var a in Albums.albums) {
if (a.name == name) {
i = tmp;
break;
}
tmp++;
}
if (i != -1) {
return Albums.albums.splice(i,1);
}
return undefined;
},
// return element which match given name
// of undefined if such element do not exist
find: function(name) {
var i = -1, tmp = 0;
for (var k in Albums.albums) {
var a = Albums.albums[k];
if (a.name == name) {
i = tmp;
break;
}
tmp++;
}
if (i != -1) {
return Albums.albums[i];
}
return undefined;
},
// displays gallery in linear representation
// on given element, and apply default styles for gallery
display: function(element) {
var displayTemplate = '<div id="gallery_album_box" title="*NAME*"><div id="gallery_control_overlay"><a href="#" onclick="galleryRename(\'*NAME*\');return false;">rename</a> | <a href="#" onclick="galleryRemove(\'*NAME*\');">remove</a></div><a href="?view=*NAME*"><div id="gallery_album_cover" title="*NAME*"></div></a><h1>*NAME*</h1></div></div>';
for (var i in Albums.albums) {
var a = Albums.albums[i];
var local = $(displayTemplate.replace(/\*NAME\*/g, a.name));
$("#gallery_album_cover", local).css('background-repeat', 'no-repeat');
$("#gallery_album_cover", local).css('background-position', '0');
$("#gallery_album_cover", local).css('background-image','url("ajax/getCovers.php?album_name='+a.name+'")');
local.mouseover(function(e) {
$("#gallery_control_overlay", this).css('visibility','visible');
});
local.mouseout(function(e) {
$("#gallery_control_overlay", this).css('visibility','hidden');
});
$("#gallery_album_cover", local).mousemove(function(e) {
var albumMetadata = Albums.find(this.title);
if (albumMetadata == undefined) {
return;
}
var x = Math.min(Math.floor((e.layerX - this.offsetLeft)/(this.offsetWidth/albumMetadata.numOfCovers)), albumMetadata.numOfCovers-1);
x *= this.offsetWidth-1;
$(this).css('background-position', -x+'px 0');
});
$(element).append(local);
}
},
rename: function(element, new_name) {
if (new_name) {
$(element).attr("title", new_name);
$("a", element).attr("href", "?view="+new_name);
$("h1", element).text(new_name);
}
}
}