/modules/mod_base/actions/action_base_mask.erl

 1%% @author Marc Worrell <marc@worrell.nl>
 2%% @copyright 2010 Marc Worrell
 3%% @doc Mask an element or the whole page with a busy indicator.
 4
 5%% Copyright 2010 Marc Worrell
 6%%
 7%% Licensed under the Apache License, Version 2.0 (the "License");
 8%% you may not use this file except in compliance with the License.
 9%% You may obtain a copy of the License at
10%% 
11%%     http://www.apache.org/licenses/LICENSE-2.0
12%% 
13%% Unless required by applicable law or agreed to in writing, software
14%% distributed under the License is distributed on an "AS IS" BASIS,
15%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16%% See the License for the specific language governing permissions and
17%% limitations under the License.
18
19-module(action_base_mask).
20-include("zotonic.hrl").
21-export([render_action/4]).
22
23render_action(_TriggerId, TargetId, Args, Context) -> 
24    Selector = case proplists:get_value(body, Args) of
25        true -> "body";
26        _ -> 
27            case z_render:css_selector(TargetId, Args) of
28                [] -> "body";
29                S -> S
30            end
31    end,
32    Message = proplists:get_value(message, Args, ""),
33    Delay = proplists:get_value(delay, Args, 0),
34    Script = [ <<"try { ">>, z_render:render_css_selector(Selector) ,<<".mask('">>, 
35                z_utils:js_escape(Message), $',$,,
36                z_convert:to_list(Delay),
37                <<"); } catch (e) {};">>],
38    {Script, Context}.