<ul id="mailpoet_segment_selection" class="clearfix"></ul>
<div id="mailpoet_segment_available_container">
<h3><%= __('Select the segment that you want to add:') %></h3>
<select class="mailpoet_segment_available"></select>
<a href="javascript:;" class="mailpoet_segment_add"><span><%= __('Add') %></span></a>
</div>
<script type="text/javascript">
jQuery(function($) {
<% autoescape false %>
var selected_segments = {{#if params.values}}{{{ json_encode params.values }}}
{{else}}[]{{/if}};
<% endautoescape %>
$(function() {
mailpoet_segment_available_render();
mailpoet_segment_selection_render();
setInputNames();
// add segment
$('.mailpoet_segment_add').on('click', function() {
// add currently selected segment to the selection
var selected_segment = $('.mailpoet_segment_available :selected');
// add segment to selection
selected_segments.push({
id: selected_segment.val(),
name: selected_segment.text(),
is_checked: 0
});
// remove segment from available segments
selected_segment.remove();
// render selection
mailpoet_segment_selection_render();
setInputNames();
});
// remove segment
$('#mailpoet_segment_selection').on('click', '.remove', function(e) {
if($('#mailpoet_segment_selection').children().length === 1) {
return e.preventDefault();
}
var element = $(this).parents('li');
// remove currently selected segment to the selection
var selected_segment = parseInt(element.data('segment'), 10);
// remove segment from selection
selected_segments = selected_segments.filter(function(segment) {
return (parseInt(segment.id, 10) !== selected_segment);
});
// remove element
element.remove();
// render available segment
mailpoet_segment_available_render();
setInputNames();
});
});
function setupSortableSegments() {
// make segment selection sortable
Sortable.create('mailpoet_segment_selection', {
handles: $$('#mailpoet_segment_selection .handle'),
onChange: function(item) {
setInputNames();
}
});
}
function mailpoet_segment_available_render() {
// clear available segments
$('.mailpoet_segment_available').html('');
var selected_segment_ids = selected_segments.map(function(segment) {
return segment.id;
});
// display available segments
$.each(mailpoet_segments, function(i, segment) {
if($.inArray(segment.id, selected_segment_ids) < 0) {
$('.mailpoet_segment_available').append(
'<option value="'+segment.id+'">'+segment.name+'</option>'
);
}
});
mailpoet_segment_available_toggle();
}
function mailpoet_segment_selection_render() {
// segment item template
var template = Handlebars.compile(
$('#field_settings_segment_selection_item').html()
);
// update view
$('#mailpoet_segment_selection').html(
template({ segments: selected_segments })
);
mailpoet_segment_available_toggle();
}
function mailpoet_segment_available_toggle() {
// toggle visibility of available segments
if($('.mailpoet_segment_available option').length === 0) {
$('#mailpoet_segment_available_container').hide();
} else {
$('#mailpoet_segment_available_container').show();
}
}
function setInputNames() {
$('#mailpoet_segment_selection li').each(function(index, item) {
$(item).find('.mailpoet_is_checked').attr('name', 'params[values]['+index+'][is_checked]');
$(item).find('.mailpoet_segment_id').attr('name', 'params[values]['+index+'][id]');
$(item).find('.mailpoet_segment_name').attr('name', 'params[values]['+index+'][name]');
});
setupSortableSegments();
}
});
<{{!}}/script>