nextcloud/apps/gallery/js/albums.js

85 lines
3.1 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) {
if (Albums.albums[album_name] != undefined) return false;
Albums.albums[album_name] = {name: album_name, numOfCovers: num};
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) {
return Albums.albums[name];
},
// displays gallery in linear representation
// on given element, and apply default styles for gallery
display: function(element) {
var displayTemplate = '<div class="gallery_album_box"><div class="gallery_control_overlay"><a href="#" class="rename">rename</a> | <a href="#" class="remove">remove</a></div><a class="view"><div class="gallery_album_cover"></div></a><h1></h1></div></div>';
for (var i in Albums.albums) {
var a = Albums.albums[i];
var local=$(displayTemplate);
local.attr('data-album',a.name);
$(".gallery_control_overlay a.rename", local).click(function(name,event){
event.preventDefault();
galleryRename(name);
}.bind(null,a.name));
$(".gallery_control_overlay a.remove", local).click(function(name,event){
event.preventDefault();
galleryRemove(name);
}.bind(null,a.name));
$("a.view", local).attr('href','?view='+a.name);
$('h1',local).text(a.name);
$(".gallery_album_cover", local).attr('title',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/galleryOp.php?operation=get_covers&albumname='+a.name+'")');
$(".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("data-album", new_name);
$("a.view", element).attr("href", "?view="+new_name);
$("h1", element).text(new_name);
}
}
}