silverstripe-framework/javascript/TreeDropdownField.js

240 lines
7.0 KiB
JavaScript

(function($) {
$.entwine('ss', function($){
var strings = {
'openlink': 'Open',
'fieldTitle': '(choose)',
'searchFieldTitle': '(choose or search)'
};
/**
* @todo Error display
* @todo No results display for search
* @todo Automatic expansion of ajax children when multiselect is triggered
* @todo Automatic panel positioning based on available space (top/bottom)
* @todo forceValue
* @todo Automatic width
* @todo Expand title height to fit all elements
*/
$('.TreeDropdownField').entwine({
onmatch: function() {
this.append(
'<span class="title"></span>' +
'<a href="#" title="' + strings.openLink + '" class="toggle-panel-link"></a>' +
'<div class="panel"><div class="tree-holder"></div></div>'
);
if(this.data('title')) this.setTitle(this.data('title'));
this.getPanel().hide();
this._super();
},
getPanel: function() {
return this.find('.panel');
},
openPanel: function() {
var panel = this.getPanel(), tree = this.find('.tree-holder');
panel.show();
if(tree.is(':empty')) this.loadTree();
},
closePanel: function() {
this.getPanel().hide();
},
togglePanel: function() {
this[this.getPanel().is(':visible') ? 'closePanel' : 'openPanel']();
},
setTitle: function(title) {
if(!title) title = strings.fieldTitle;
this.find('.title').text(title);
this.data('title', title); // separate view from storage (important for search cancellation)
},
getTitle: function() {
return this.find('.title').text();
},
setValue: function(val) {
this.find(':input:hidden').val(val);
this.trigger('change');
},
getValue: function() {
return this.find(':input:hidden').val();
},
loadTree: function(params, callback) {
var self = this, panel = this.getPanel(), treeHolder = $(panel).find('.tree-holder');
var params = (params) ? this.getRequestParams().concat(params) : this.getRequestParams();
panel.addClass('loading');
treeHolder.load(this.data('url-tree'), params, function(html, status, xhr) {
var firstLoad = true;
if(status == 'success') {
$(this)
.bind('loaded.jstree', function(e, data) {
var val = self.getValue();
if(val) data.inst.select_node(treeHolder.find('*[data-id=' + val + ']'));
firstLoad = false;
if(callback) callback.apply(self);
})
.jstree(self.getTreeConfig())
.bind('select_node.jstree', function(e, data) {
var node = data.rslt.obj, id = $(node).data('id');
if(self.getValue() == id) {
self.setValue(null);
self.setTitle(null);
} else {
self.setValue(id);
self.setTitle(data.inst.get_text(node));
}
// Avoid auto-closing panel on first load
if(!firstLoad) self.closePanel();
});
}
panel.removeClass('loading');
});
},
getTreeConfig: function() {
var self = this;
return {
'core': {
'initially_open': ['record-0'],
'animation': 0
},
'html_data': {
// TODO Hack to avoid ajax load on init, see http://code.google.com/p/jstree/issues/detail?id=911
'data': this.getPanel().find('.tree-holder').html(),
'ajax': {
'url': this.data('url-tree'),
'data': function(node) {
var id = $(node).data("id") ? $(node).data("id") : 0, params = self.getRequestParams();
params = params.concat([{name: 'ID', value: id}, {name: 'ajax', value: 1}]);
return params;
}
}
},
'ui': {
"select_limit" : 1,
'initially_select': [this.getPanel().find('.current').attr('id')]
},
'themes': {
'theme': 'apple'
},
'plugins': ['html_data', 'ui', 'themes']
};
},
/**
* If the field is contained in a form, submit all form parameters by default.
* This is useful to keep state like locale values which are typically
* encoded in hidden fields through the form.
*
* @return {array}
*/
getRequestParams: function() {
return [];
}
});
$('.TreeDropdownField *').entwine({
getField: function() {
return this.parents('.TreeDropdownField:first');
}
});
$('.TreeDropdownField .toggle-panel-link, .TreeDropdownField span.title').entwine({
onclick: function(e) {
this.getField().togglePanel();
return false;
}
});
$('.TreeDropdownField.searchable').entwine({
onmatch: function() {
this._super();
var title = this.data('title');
this.find('.title').replaceWith(
$('<input type="text" class="title search" />')
);
this.setTitle(title ? title : strings.searchFieldTitle);
},
setTitle: function(title) {
if(!title) title = strings.fieldTitle;
this.find('.title').val(title);
},
getTitle: function() {
return this.find('.title').val();
},
search: function(str, callback) {
this.openPanel();
this.loadTree({search: str}, callback);
},
cancelSearch: function() {
this.closePanel();
this.loadTree();
this.setTitle(this.data('title'));
}
});
$('.TreeDropdownField.searchable input.search').entwine({
onkeydown: function(e) {
var field = this.getField();
if(e.keyCode == 13) {
// trigger search on ENTER key
field.search(this.val());
return false;
} else if(e.keyCode == 27) {
// cancel search on ESC key
field.cancelSearch();
}
}
});
$('.TreeDropdownField.multiple').entwine({
getTreeConfig: function() {
var cfg = this._super();
cfg.checkbox = {override_ui: true};
cfg.plugins.push('checkbox');
cfg.ui.select_limit = -1;
return cfg;
},
loadTree: function(params, callback) {
var self = this, panel = this.getPanel(), treeHolder = $(panel).find('.tree-holder');
var params = (params) ? this.getRequestParams().concat(params) : this.getRequestParams();
panel.addClass('loading');
treeHolder.load(this.data('url-tree'), params, function(html, status, xhr) {
var firstLoad = true;
if(status == 'success') {
$(this)
.bind('loaded.jstree', function(e, data) {
$.each(self.getValue(), function(i, val) {
data.inst.check_node(treeHolder.find('*[data-id=' + val + ']'));
});
firstLoad = false;
if(callback) callback.apply(self);
})
.jstree(self.getTreeConfig())
.bind('uncheck_node.jstree check_node.jstree', function(e, data) {
var nodes = data.inst.get_checked(null, true);
self.setValue($.map(nodes, function(el, i) {
return $(el).data('id');
}));
self.setTitle($.map(nodes, function(el, i) {
return data.inst.get_text(el);
}));
});
}
panel.removeClass('loading');
});
},
getValue: function() {
var val = this._super();
return val.split(/ *, */);
},
setValue: function(val) {
this._super($.isArray(val) ? val.join(',') : val);
},
setTitle: function(title) {
this._super($.isArray(title) ? title.join(', ') : title);
}
});
});
}(jQuery));