//
// Displays edit embed form.
//
function display_edit_embed_form(block_id, height)
{
    var f = document.forms['form_embed'];
    
    f.block_id.value = block_id;
    f.title.value = $('#mblock_title_'+block_id).html();
    f.code.value = q_unescape($('#mblock_code_'+block_id).html());
    
    var controls_height = 25;
    var diff_16_9 = Math.abs(BLOCK_WIDTH / (height - controls_height) - 16/9); 
    var diff_4_3 = Math.abs(BLOCK_WIDTH / (height - controls_height) - 4/3);
    var ratio = diff_4_3 < diff_16_9 ? '4_3' : '16_9';
    
    $('#embed_ratio_'+ratio).attr('checked', 'checked');
    
    $('#button_del_embed').show();
    $('#saving_del_embed').hide();
}

//
// Send add embed form. 
//
function send_add_embed_form()
{
    var f = document.forms['form_add_embed'];
    
    var title = f.title.value;
    var code = f.code.value;
    
    if ((title == '') || (code == ''))
    {
        my_alert('all field are must');
        return false;
    }

    var data = $("#form_add_embed").serialize();
    var code = "display_media_blocks_sw_mode(%%%);";
    code += "close_modals();"
    
    ajax(data, code, "", "button_add_embed", "saving_add_embed");
    
    return false;
}

//
// Send save embed form. 
//
function send_save_embed_form()
{
    var f = document.forms['form_embed'];
    
    var title = f.title.value;
    var code = f.code.value;
    var block_id = get_form_field('form_embed', FLD_BLOCK_ID);
    
    if ((title == '') || (code == ''))
    {
        my_alert('all field are must');
        return false;
    }
    
    var data = $("#form_embed").serialize();
    var code = "close_modals();update_block_code("+block_id+", embedded_url_to_embed_code('"+code+"', null, eval_json(%%%.code).height));";
    code += "update_block_title("+block_id+", %%%.title);";
    code += "close_modals();";
    
    ajax(data, code, "", "button_save_embed", "saving_save_embed");
    
    return false;
}

//
// Deletes embed block.
//
function del_embed()
{
    document.forms['form_embed'].action.value = 'ajax_del_embed';
    
    $('#button_del_embed').hide();
    $('#saving_del_embed').show();
    
    var block_id = get_form_field('form_embed', FLD_BLOCK_ID);

    var data = $('#form_embed').serialize();

    var code = "hide_block("+block_id+");";
    code += "close_modals();";
    
    ajax(data, code, "", 'button_del_embed', 'saving_del_embed');

    return false;
}