silverstripe-framework/admin/javascript/LeftAndMain.AddForm.js

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/**
* File: LeftAndMain.AddForm.js
*/
(function($) {
$.entwine('ss', function($){
/**
* Class: .add-form
*
* Simple form with a page type dropdown
* which creates a new page through .cms-edit-form and adds a new tree node.
*
* Requires:
* ss.i18n
* .cms-edit-form
*/
$('.add-form').entwine({
/**
* Variable: Tree
* (DOMElement)
*/
Tree: null,
/**
* Variable: OrigOptions
* (Array) Map of <option> values to an object of "title" and "value"
*/
OrigOptions: null,
/**
* Variable: NewPages
* (Array) Internal counter to create unique page identifiers prior to ajax saving
*/
NewPages: [],
/**
* Constructor: onmatch
*/
onmatch: function() {
var self = this, typeDropdown = this.find(':input[name=PageType]');
Observable.applyTo(this[0]);
var tree = $('.cms-tree');
this.setTree(tree);
// Event bindings
$(tree).bind('select_node.jstree', function(e, data) {self.refresh(data.rslt.obj);});
typeDropdown.bind('change', function(e) {self.refresh();});
// TODO Bind on tree initialization to set dropdown for selected node
// Store original page type options (they might get filtered to "allowed_children") later on
// TODO Better DOM element serialization (jQuery 1.4?)
var opts = {};
typeDropdown.find('option').each(function(el) {
opts[$(this).val()] = {html:$(this).html(), value: $(this).val()};
});
this.setOrigOptions(opts);
this._super();
},
/**
* Function: onsubmit
*
* Parameters:
* (Event) e
*/
onsubmit: function(e) {
var newPages = this.getNewPages(), tree = this.getTree(), node = $(tree).jstree('get_selected');
var parentID = (node.length) ? node.data('id') : 0;
// TODO: Remove 'new-' code http://open.silverstripe.com/ticket/875
// if(parentID && parentID.substr(0,3) == 'new') {
// alert(ss.i18n._t('CMSMAIN.WARNINGSAVEPAGESBEFOREADDING'));
// }
if(node && node.hasClass("nochildren")) {
alert(ss.i18n._t('CMSMAIN.CANTADDCHILDREN') );
}
// Optionally initalize the new pages tracker
if(!newPages[parentID] ) newPages[parentID] = 1;
// default to first button
var button = this.find(':submit:first');
button.addClass('loading');
// collect data and submit the form
var data = this.serializeArray();
data.push({name:'Suffix',value:newPages[parentID]++});
data.push({name:button.attr('name'),value:button.val()});
// TODO Should be set by hiddenfield already
jQuery('.cms-edit-form').entwine('ss').loadForm(
this.attr('action'),
function() {
// Tree updates are triggered by Form_EditForm load events
button.removeClass('loading');
},
{type: 'POST', data: data}
);
this.setNewPages(newPages);
return false;
},
/**
* Function: refresh
*
* Parameters:
* (DOMElement) selectedNode
*/
refresh: function(selectedNode) {
// Note: Uses siteTreeHints global
var tree = this.getTree(),
selectedNode = selectedNode || $(tree).jstree('get_selected')
origOptions = this.getOrigOptions(),
dropdown = this.find('select[name=PageType]');
// Clear all existing <option> elements
// (IE doesn't allow setting display:none on these elements)
dropdown.find('option').remove();
// Find allowed children through preferences on node or globally
var allowed = [];
if(selectedNode) {
if(selectedNode.hints && selectedNode.hints.allowedChildren) {
allowed = selectedNode.hints.allowedChildren;
} else {
// Fallback to globals
allowed = (typeof siteTreeHints !== 'undefined') ? siteTreeHints['Root'].allowedChildren : [];
}
// Re-add all allowed <option> to the dropdown
for(i=0;i<allowed.length;i++) {
var optProps = origOptions[allowed[i]];
if(optProps) dropdown.append($('<option value="' + optProps.value + '">' + optProps.html + '</option>'));
}
} else {
// No tree node selected, reset to original elements
$.each(origOptions, function(i, optProps) {
if(optProps) dropdown.append($('<option value="' + optProps.value + '">' + optProps.html + '</option>'));
});
}
// TODO Re-select the currently selected element
// Disable dropdown if no elements are selectable
if(allowed) dropdown.removeAttr('disabled');
else dropdown.attr('disabled', 'disabled');
// Set default child (optional)
if(selectedNode.hints && selectedNode.hints.defaultChild) {
dropdown.val(selectedNode.hints.defaultChild);
}
// Set parent node (fallback to root)
this.find(':input[name=ParentID]').val(selectedNode ? selectedNode.data('id') : 0);
}
});
});
}(jQuery));