Файл: framework/admin/javascript/LeftAndMain.Tree.js
Строк: 676
<?php
/**
* File: LeftAndMain.Tree.js
*/
(function($) {
$.entwine('ss.tree', function($){
$('.cms-tree').entwine({
Hints: null,
IsUpdatingTree: false,
IsLoaded: false,
onadd: function(){
this._super();
// Don't reapply (expensive) tree behaviour if already present
if($.isNumeric(this.data('jstree_instance_id'))) return;
var hints = this.attr('data-hints');
if(hints) this.setHints($.parseJSON(hints));
/**
* @todo Icon and page type hover support
* @todo Sorting of sub nodes (originally placed in context menu)
* @todo Automatic load of full subtree via ajax on node checkbox selection (minNodeCount = 0)
* to avoid doing partial selection with "hidden nodes" (unloaded markup)
* @todo Disallow drag'n'drop when node has "noChildren" set (see siteTreeHints)
* @todo Disallow moving of pages marked as deleted
* most likely by server response codes rather than clientside
* @todo "defaultChild" when creating a page (sitetreeHints)
* @todo Duplicate page (originally located in context menu)
* @todo Update tree node title information and modified state after reordering (response is a JSON array)
*
* Tasks most likely not required after moving to a standalone tree:
*
* @todo Context menu - to be replaced by a bezel UI
* @todo Refresh form for selected tree node if affected by reordering (new parent relationship)
* @todo Cancel current form load via ajax when new load is requested (synchronous loading)
*/
var self = this;
this
.jstree(this.getTreeConfig())
.bind('loaded.jstree', function(e, data) {
self.setIsLoaded(true);
// Add ajax settings after init period to avoid unnecessary initial ajax load
// of existing tree in DOM - see load_node_html()
data.inst._set_settings({'html_data': {'ajax': {
'url': self.data('urlTree'),
'data': function(node) {
var params = self.data('searchparams') || [];
// Avoid duplication of parameters
params = $.grep(params, function(n, i) {return (n.name != 'ID' && n.name != 'value');});
params.push({name: 'ID', value: $(node).data("id") ? $(node).data("id") : 0});
params.push({name: 'ajax', value: 1});
return params;
}
}}});
self.updateFromEditForm();
self.css('visibility', 'visible');
// Only show checkboxes with .multiple class
data.inst.hide_checkboxes();
})
.bind('before.jstree', function(e, data) {
if(data.func == 'start_drag') {
// Don't allow drag'n'drop if multi-select is enabled'
if(!self.hasClass('draggable') || self.hasClass('multiselect')) {
e.stopImmediatePropagation();
return false;
}
}
if($.inArray(data.func, ['check_node', 'uncheck_node'])) {
// don't allow check and uncheck if parent is disabled
var node = $(data.args[0]).parents('li:first');
var allowedChildren = node.find('li:not(.disabled)');
// if there are child nodes that aren't disabled, allow expanding the tree
if(node.hasClass('disabled') && allowedChildren == 0) {
e.stopImmediatePropagation();
return false;
}
}
})
.bind('move_node.jstree', function(e, data) {
if(self.getIsUpdatingTree()) return;
var movedNode = data.rslt.o, newParentNode = data.rslt.np, oldParentNode = data.inst._get_parent(movedNode), newParentID = $(newParentNode).data('id') || 0, nodeID = $(movedNode).data('id');
var siblingIDs = $.map($(movedNode).siblings().andSelf(), function(el) {
return $(el).data('id');
});
$.ajax({
'url': self.data('urlSavetreenode'),
'type': 'POST',
'data': {
ID: nodeID,
ParentID: newParentID,
SiblingIDs: siblingIDs
},
success: function() {
// We only need to update the ParentID if the current page we're on is the page being moved
if ($('.cms-edit-form :input[name=ID]').val() == nodeID) {
$('.cms-edit-form :input[name=ParentID]').val(newParentID);
}
self.updateNodesFromServer([nodeID]);
},
statusCode: {
403: function() {
$.jstree.rollback(data.rlbk);
}
}
});
})
// Make some jstree events delegatable
.bind('select_node.jstree check_node.jstree uncheck_node.jstree', function(e, data) {
$(document).triggerHandler(e, data);
});
},
onremove: function(){
this.jstree('destroy');
this._super();
},
'from .cms-container': {
onafterstatechange: function(e){
this.updateFromEditForm();
// No need to refresh tree nodes, we assume only form submits cause state changes
}
},
'from .cms-container form': {
onaftersubmitform: function(e){
var id = $('.cms-edit-form :input[name=ID]').val();
// TODO Trigger by implementing and inspecting "changed records" metadata
// sent by form submission response (as HTTP response headers)
this.updateNodesFromServer([id]);
}
},
getTreeConfig: function() {
var self = this;
return {
'core': {
'initially_open': ['record-0'],
'animation': 0,
'html_titles': true
},
'html_data': {
// 'ajax' will be set on 'loaded.jstree' event
},
'ui': {
"select_limit" : 1,
'initially_select': [this.find('.current').attr('id')]
},
"crrm": {
'move': {
// Check if a node is allowed to be moved.
// Caution: Runs on every drag over a new node
'check_move': function(data) {
var movedNode = $(data.o), newParent = $(data.np),
isMovedOntoContainer = data.ot.get_container()[0] == data.np[0],
movedNodeClass = movedNode.getClassname(),
newParentClass = newParent.getClassname(),
// Check allowedChildren of newParent or against root node rules
hints = self.getHints(),
disallowedChildren = [],
hintKey = newParentClass ? newParentClass : 'Root',
hint = (hints && typeof hints[hintKey] != 'undefined') ? hints[hintKey] : null;
// Special case for VirtualPage: Check that original page type is an allowed child
if(hint && movedNode.attr('class').match(/VirtualPage-([^s]*)/)) movedNodeClass = RegExp.$1;
if(hint) disallowedChildren = (typeof hint.disallowedChildren != 'undefined') ? hint.disallowedChildren : [];
var isAllowed = (
// Don't allow moving the root node
movedNode.data('id') !== 0
// Archived pages can't be moved
&& !movedNode.hasClass('status-archived')
// Only allow moving node inside the root container, not before/after it
&& (!isMovedOntoContainer || data.p == 'inside')
// Children are generally allowed on parent
&& !newParent.hasClass('nochildren')
// movedNode is allowed as a child
&& (!disallowedChildren.length || $.inArray(movedNodeClass, disallowedChildren) == -1)
);
return isAllowed;
}
}
},
'dnd': {
"drop_target" : false,
"drag_target" : false
},
'checkbox': {
'two_state': true
},
'themes': {
'theme': 'apple',
'url': $('body').data('frameworkpath') + '/thirdparty/jstree/themes/apple/style.css'
},
// Caution: SilverStripe has disabled $.vakata.css.add_sheet() for performance reasons,
// which means you need to add any CSS manually to framework/admin/scss/_tree.css
'plugins': [
'html_data', 'ui', 'dnd', 'crrm', 'themes',
'checkbox' // checkboxes are hidden unless .multiple is set
]
};
},
/**
* Function:
* search
*
* Parameters:
* (Object) data Pass empty data to cancel search
* (Function) callback Success callback
*/
search: function(params, callback) {
if(params) this.data('searchparams', params);
else this.removeData('searchparams');
this.jstree('refresh', -1, callback);
},
/**
* Function: getNodeByID
*
* Parameters:
* (Int) id
*
* Returns
* DOMElement
*/
getNodeByID: function(id) {
return this.find('*[data-id='+id+']');
},
/**
* Creates a new node from the given HTML.
* Wrapping around jstree API because we want the flexibility to define
* the node's <li> ourselves. Places the node in the tree
* according to data.ParentID.
*
* Parameters:
* (String) HTML New node content (<li>)
* (Object) Map of additional data, e.g. ParentID
* (Function) Success callback
*/
createNode: function(html, data, callback) {
var self = this,
parentNode = data.ParentID !== void 0 ? self.getNodeByID(data.ParentID) : false, // Explicitly check for undefined as 0 is a valid ParentID
newNode = $(html);
// Extract the state for the new node from the properties taken from the provided HTML template.
// This will correctly initialise the behaviour of the node for ajax loading of children.
var properties = {data: ''};
if(newNode.hasClass('jstree-open')) {
properties.state = 'open';
} else if(newNode.hasClass('jstree-closed')) {
properties.state = 'closed';
}
this.jstree(
'create_node',
parentNode.length ? parentNode : -1,
'last',
properties,
function(node) {
var origClasses = node.attr('class');
// Copy attributes
for(var i=0; i<newNode[0].attributes.length; i++){
var attr = newNode[0].attributes[i];
node.attr(attr.name, attr.value);
}
// Substitute html from request for that generated by jstree
node.addClass(origClasses).html(newNode.html());
callback(node);
}
);
},
/**
* Updates a node's state in the tree,
* including all of its HTML, as well as its position.
*
* Parameters:
* (DOMElement) Existing node
* (String) HTML New node content (<li>)
* (Object) Map of additional data, e.g. ParentID
*/
updateNode: function(node, html, data) {
var self = this, newNode = $(html), origClasses = node.attr('class');
var nextNode = data.NextID ? this.getNodeByID(data.NextID) : false;
var prevNode = data.PrevID ? this.getNodeByID(data.PrevID) : false;
var parentNode = data.ParentID ? this.getNodeByID(data.ParentID) : false;
// Copy attributes. We can't replace the node completely
// without removing or detaching its children nodes.
$.each(['id', 'style', 'class', 'data-pagetype'], function(i, attrName) {
node.attr(attrName, newNode.attr(attrName));
});
// To avoid conflicting classes when the node gets its content replaced (see below)
// Filter out all previous status flags if they are not in the class property of the new node
origClasses = origClasses.replace(/status-[^s]*/, '');
// Replace inner content
var origChildren = node.children('ul').detach();
node.addClass(origClasses).html(newNode.html()).append(origChildren);
if (nextNode && nextNode.length) {
this.jstree('move_node', node, nextNode, 'before');
}
else if (prevNode && prevNode.length) {
this.jstree('move_node', node, prevNode, 'after');
}
else {
this.jstree('move_node', node, parentNode.length ? parentNode : -1);
}
},
/**
* Sets the current state based on the form the tree is managing.
*/
updateFromEditForm: function() {
var node, id = $('.cms-edit-form :input[name=ID]').val();
if(id) {
node = this.getNodeByID(id);
if(node.length) {
this.jstree('deselect_all');
this.jstree('select_node', node);
} else {
// If form is showing an ID that doesn't exist in the tree,
// get it from the server
this.updateNodesFromServer([id]);
}
} else {
// If no ID exists in a form view, we're displaying the tree on its own,
// hence to page should show as active
this.jstree('deselect_all');
}
},
/**
* Reloads the view of one or more tree nodes
* from the server, ensuring that their state is up to date
* (icon, title, hierarchy, badges, etc).
* This is easier, more consistent and more extensible
* than trying to correct all aspects via DOM modifications,
* based on the sparse data available in the current edit form.
*
* Parameters:
* (Array) List of IDs to retrieve
*/
updateNodesFromServer: function(ids) {
if(this.getIsUpdatingTree() || !this.getIsLoaded()) return;
var self = this, i, includesNewNode = false;
this.setIsUpdatingTree(true);
self.jstree('save_selected');
var correctStateFn = function(node) {
// Duplicates can be caused by the subtree reloading through
// a tree "open"/"select" event, while at the same time creating a new node
self.getNodeByID(node.data('id')).not(node).remove();
// Select this node
self.jstree('deselect_all');
self.jstree('select_node', node);
};
// TODO 'initially_opened' config doesn't apply here
self.jstree('open_node', this.getNodeByID(0));
self.jstree('save_opened');
self.jstree('save_selected');
$.ajax({
url: $.path.addSearchParams(this.data('urlUpdatetreenodes'), 'ids=' + ids.join(',')),
dataType: 'json',
success: function(data, xhr) {
$.each(data, function(nodeId, nodeData) {
var node = self.getNodeByID(nodeId);
// If no node data is given, assume the node has been removed
if(!nodeData) {
self.jstree('delete_node', node);
return;
}
// Check if node exists, create if necessary
if(node.length) {
self.updateNode(node, nodeData.html, nodeData);
setTimeout(function() {
correctStateFn(node);
}, 500);
} else {
includesNewNode = true;
// If the parent node can't be found, it might have not been loaded yet.
// This can happen for deep trees which require ajax loading.
// Assumes that the new node has been submitted to the server already.
if(nodeData.ParentID && !self.find('li[data-id='+nodeData.ParentID+']').length) {
self.jstree('load_node', -1, function() {
newNode = self.find('li[data-id='+nodeId+']');
correctStateFn(newNode);
});
} else {
self.createNode(nodeData.html, nodeData, function(newNode) {
correctStateFn(newNode);
});
}
}
});
if(!includesNewNode) {
self.jstree('deselect_all');
self.jstree('reselect');
self.jstree('reopen');
}
},
complete: function() {
self.setIsUpdatingTree(false);
}
});
}
});
$('.cms-tree.multiple').entwine({
onmatch: function() {
this._super();
this.jstree('show_checkboxes');
},
onunmatch: function() {
this._super();
this.jstree('uncheck_all');
this.jstree('hide_checkboxes');
},
/**
* Function: getSelectedIDs
*
* Returns:
* (Array)
*/
getSelectedIDs: function() {
return $(this)
.jstree('get_checked')
.not('.disabled')
.map(function() {
return $(this).data('id');
})
.get();
}
});
$('.cms-tree li').entwine({
/**
* Function: setEnabled
*
* Parameters:
* (bool)
*/
setEnabled: function(bool) {
this.toggleClass('disabled', !(bool));
},
/**
* Function: getClassname
*
* Returns PHP class for this element. Useful to check business rules like valid drag'n'drop targets.
*/
getClassname: function() {
var matches = this.attr('class').match(/class-([^s]*)/i);
return matches ? matches[1] : '';
},
/**
* Function: getID
*
* Returns:
* (Number)
*/
getID: function() {
return this.data('id');
}
});
});
}(jQuery));
?>