mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
a97c252b0d
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@102506 467b73ca-7a2a-4603-9d3b-597d59a354a9
417 lines
12 KiB
JavaScript
Executable File
417 lines
12 KiB
JavaScript
Executable File
/**
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* TreeDropdownField.js
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*/
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TreeDropdownField = Class.extend('Observable');
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TreeDropdownField.prototype = {
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initialize: function() {
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// Hook up all the fieldy bits
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this.editLink = this.getElementsByTagName('a')[0];
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if (this.getElementsByTagName('span').length > 0) {
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// no search, humanItems is a span
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this.humanItems = this.getElementsByTagName('span')[0];
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this.inputTag = this.getElementsByTagName('input')[0];
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}
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else {
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// search is present, humanItems is an input
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this.inputTag = this.getElementsByTagName('input')[0];
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this.humanItems = this.getElementsByTagName('input')[1];
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this.humanItems.onkeyup = this.search_onkeyup;
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}
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this.editLink.treeDropdownField = this;
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this.humanItems.treeDropdownField = this;
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this.inputTag.treeDropdownField = this;
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this.editLink.onclick = this.edit_click;
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this.humanItems.onclick = this.human_click;
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this.inputTag.setValue = this.setValue.bind(this);
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},
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destroy: function() {
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if(this.editLink) {
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this.editLink.onclick = null;
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this.editLink.treeDropdownField = null;
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this.editLink = null;
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}
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if(this.humanItems) {
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this.humanItems.onclick = null;
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this.humanItems.treeDropdownField = null;
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this.humanItems = null;
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}
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if(this.inputTag) {
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this.inputTag.setValue = null;
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this.inputTag.treeDropdownField = null;
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this.inputTag = null;
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}
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},
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getName: function() {
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return this.inputTag.name;
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},
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refresh: function() {
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this.createTreeNode();
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this.ajaxGetTree( (function(response) {
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this.newTreeReady(response, false);
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this.updateTreeLabel();
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}).bind(this));
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},
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helperURLBase: function() {
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return this.ownerForm().action + '/field/' + this.getName() + '/';
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},
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ownerForm: function() {
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var f =this.parentNode;
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while(f && f.tagName.toLowerCase() != 'form') f = f.parentNode;
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return f;
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},
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toggleTree: function() {
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if(this.treeShown) this.hideTree();
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else this.showTree();
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},
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createTreeNode: function(keepTreeHidden) {
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if(!this.itemTree) {
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this.itemTree = document.createElement('div');
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if(keepTreeHidden) {
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this.hideTree();
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}
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this.itemTree.className = 'tree_holder';
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this.itemTree.innerHTML = ss.i18n._t('LOADING', 'Loading...');
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this.appendChild(this.itemTree);
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}
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},
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deleteTreeNode: function() {
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if (!this.itemTree) return;
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var parent = this.itemTree.parentNode;
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parent.removeChild(this.itemTree);
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this.itemTree = null;
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},
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showTree: function () {
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if (!this.treeShown) this.saveCurrentState();
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this.treeShown = true;
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if(this.itemTree) {
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this.itemTree.style.display = 'block';
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// Store this in a parameter so that stopObserving works
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this.bound_testForBlur = this.testForBlur.bind(this);
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Event.observe(document, 'click', this.bound_testForBlur);
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this.stretchIframeIfNeeded();
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} else {
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this.createTreeNode();
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this.ajaxGetTree( (function(response) {
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this.newTreeReady(response, false);
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this.updateTreeLabel();
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}).bind(this));
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}
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},
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saveCurrentState: function() {
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this.origHumanText = this.getHumanText();
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this.defaultCleared = false;
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this.searched = false;
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},
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restoreOriginalState: function() {
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this.setHumanText(this.origHumanText);
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},
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/**
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* If this control is inside an iframe, stretch the iframe out to fit the tree.
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*/
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stretchIframeIfNeeded: function() {
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if(parent && parent.document) {
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if(!this.iframeObj) {
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var iframes = parent.document.getElementsByTagName('iframe')
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var i,item;
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for(i=0;item=iframes[i];i++) {
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if(item.contentWindow == window) {
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this.iframeObj = item;
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break;
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}
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}
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}
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// This iframe stretching doesn't work with the greybox
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if(this.iframeObj && this.iframeObj.id == 'GB_frame') return;
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var desiredHeight = Position.cumulativeOffset(this.itemTree)[1] + this.itemTree.offsetHeight + 2;
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if(this.iframeObj && desiredHeight > this.iframeObj.offsetHeight) {
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this.iframeObj.oldHeight = this.iframeObj.offsetHeight;
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this.iframeObj.style.height = desiredHeight + 'px';
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}
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}
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},
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unstretchIframeIfNeeded: function() {
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if(this.iframeObj && this.iframeObj.oldHeight)
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this.iframeObj.style.height = this.iframeObj.oldHeight + 'px';
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},
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testForBlur: function (event) {
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var clicked = Event.element(event);
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if(clicked != this.itemTree && !hasAncestor(clicked, this.itemTree) && clicked != this.editLink && clicked != this.humanItems) {
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this.hideTree();
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}
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},
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hideTree: function() {
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this.treeShown = false;
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if(this.itemTree) {
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this.itemTree.style.display = 'none';
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if(this.bound_testForBlur) Event.stopObserving(document, 'click', this.bound_testForBlur);
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// this.editLink.style.display = this.humanItems.style.display = 'block';
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this.unstretchIframeIfNeeded();
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}
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// this.style.position = '';
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},
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ajaxGetTree: function(after) {
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var ajaxURL = this.helperURLBase() + 'tree/';
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ajaxURL += $('SecurityID') ? '&SecurityID=' + $('SecurityID').value : '';
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if($('Form_EditForm_Locale')) ajaxURL += "&locale=" + $('Form_EditForm_Locale').value;
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if (this.search() != null) ajaxURL += "&search=" + this.search();
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new Ajax.Request(ajaxURL, {
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method : 'get',
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onSuccess : after,
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onFailure : function(response) { errorMessage("Error getting data", response); }
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})
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},
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search: function() {
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if (this.humanItems.nodeName != 'INPUT' || !this.searched) return null;
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return this.humanItems.value;
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},
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/**
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* Called once the tree has been delivered from ajax
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*/
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newTreeReady: function (response, keepTreeHidden) {
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// alert('newTreeReady');
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this.itemTree.innerHTML = response.responseText;
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// HACK IE6: see http://www.hedgerwow.com/360/bugs/css-select-free.html
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this.itemTree.appendChild(document.createElement('iframe'));
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this.tree = Tree.create(this.itemTree.getElementsByTagName('ul')[0], {
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ajaxExpansion: this.ajaxExpansion,
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getIdx: function() {
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return this.getElementsByTagName('a')[0].getAttribute('rel');
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},
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idxBase : 'selector-' + this.getName() + '-',
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dropdownField : this,
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onselect : this.tree_click
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});
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// Select the appropriate items
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var selectedItems = this.inputTag.value.split(/ *, */);
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var i, isSelected = {};
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for(i=0;i<selectedItems.length;i++) isSelected[selectedItems[i]] = true;
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if(!keepTreeHidden) {
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this.showTree();
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}
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},
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/**
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* Expander bound to each tree node
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*/
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ajaxExpansion: function() {
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this.addNodeClass('loading');
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var ul = this.treeNodeHolder();
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ul.innerHTML = ss.i18n._t('LOADING', 'Loading...');
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var ajaxURL = this.options.dropdownField.helperURLBase() + 'tree/' + this.getIdx();
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ajaxURL += $('SecurityID') ? '&SecurityID=' + $('SecurityID').value : '';
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if($('Form_EditForm_Locale')) ajaxURL += "&locale=" + $('Form_EditForm_Locale').value;
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// ajaxExpansion is called in context of TreeNode, not Tree, so search() doesn't exist.
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if (this.search && this.search() != null) ajaxURL += "&search=" + this.search();
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new Ajax.Request(ajaxURL, {
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onSuccess : this.installSubtree.bind(this),
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onFailure : function(response) { errorMessage('error loading subtree', response); }
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});
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},
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setValue: function(val) {
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this.inputTag = this.getElementsByTagName('input')[0];
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if(this.inputTag.value != val) {
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this.inputTag.value = val;
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jQuery(this).trigger('ss.TreeDropdownField.change', {val: val});
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this.notify('Change', val);
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// If the tree item is already downloaded, just update the label
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if($('selector-' + this.getName() + '-' + this.inputTag.value)) {
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this.updateTreeLabel();
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// Otherwise, update the tree with ajax
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} else {
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this.ajaxGetTree( (function(response) {
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this.createTreeNode(true);
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this.newTreeReady(response, true);
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this.updateTreeLabel();
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}).bind(this));
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}
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}
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},
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updateTreeLabel: function() {
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if ( this.searched || (this.humanItems.nodeName == 'INPUT' && !this.inputTag.value) ) return; // don't update the search
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var treeNode;
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if(treeNode = $('selector-' + this.getName() + '-' + this.inputTag.value)) {
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this.setHumanText(treeNode.getTitle());
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if(treeNode.tree.selected && treeNode.tree.selected.removeNodeClass) treeNode.tree.selected.removeNodeClass('current');
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treeNode.addNodeClass('current');
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this.tree.selected = treeNode;
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} else {
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this.setHumanText(this.inputTag.value ? this.inputTag.value : '(Choose)');
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}
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},
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getHumanText: function() {
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return this.humanItems.nodeName == 'INPUT' ? this.humanItems.value : this.humanItems.innerHTML;
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},
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setHumanText: function (s) {
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if (this.humanItems.nodeName == 'INPUT')
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this.humanItems.value = s;
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else
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this.humanItems.innerHTML = s;
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},
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setValueFromTree: function(treeID, title) {
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this.setHumanText(title);
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this.inputTag.value = treeID.replace('selector-' + this.getName() + '-','');
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jQuery(this).trigger('ss.TreeDropdownField.change', {val: this.inputTag.value});
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this.notify('Change', this.inputTag.value);
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this.hideTree();
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},
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edit_click : function() {
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if (this.treeDropdownField.treeShown) this.treeDropdownField.restoreOriginalState();
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this.treeDropdownField.toggleTree();
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return false;
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},
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search_onkeyup: function(e) {
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if(typeof window.event!="undefined") e=window.event; //code for IE
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if (e.keyCode == 27) { // esc, cancel the selection and hide the tree.
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this.treeDropdownField.restoreOriginalState();
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this.treeDropdownField.hideTree();
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}
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else {
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var that = this;
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clearTimeout(this.timeout);
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this.timeout = setTimeout(function() {
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that.treeDropdownField.searched = true;
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that.treeDropdownField.deleteTreeNode();
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that.treeDropdownField.showTree();
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}, 750);
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}
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},
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human_click: function() {
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if (this.treeDropdownField.humanItems.nodeName != 'INPUT') {
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if (this.treeDropdownField.treeShown) this.treeDropdownField.restoreOriginalState();
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this.treeDropdownField.toggleTree();
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return false;
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}
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if (!this.treeDropdownField.treeShown) this.treeDropdownField.toggleTree();
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if (!this.treeDropdownField.defaultCleared) {
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this.treeDropdownField.defaultCleared = true;
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this.treeDropdownField.setHumanText('');
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}
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return false;
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},
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tree_click : function() {
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this.options.dropdownField.setValueFromTree(this.id, this.getTitle());
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if(this.tree.selected && this.tree.selected.removeNodeClass) this.tree.selected.removeNodeClass('current');
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this.addNodeClass('current');
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this.tree.selected = this;
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}
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}
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TreeMultiselectField = Class.extend('TreeDropdownField');
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TreeMultiselectField.prototype = {
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destroy: function() {
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if(this.TreeDropdownField) this.TreeDropdownField.destroy();
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this.TreeDropdownField = null;
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},
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newTreeReady: function (response) {
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this.TreeDropdownField.newTreeReady(response);
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MultiselectTree.create(this.tree);
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this.tree.options.onselect = this.updateVal.bind(this);
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// Select the appropriate items
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var selectedItems = this.inputTag.value.split(/ *, */);
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var i, isSelected = {};
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for(i=0;i<selectedItems.length;i++) isSelected[selectedItems[i]] = true;
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var allNodes = this.tree.getElementsByTagName('li');
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for(i=0;i<allNodes.length;i++) {
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if(isSelected[allNodes[i].getIdx()]) {
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this.tree.selectNode(allNodes[i]);
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allNodes[i].expose();
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}
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}
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},
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hideTree: function() {
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this.TreeDropdownField.hideTree();
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if(this.tree) this.updateVal();
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},
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/**
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* Update the inputTag and humanItems from the currently selected nodes.
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*/
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updateVal: function() {
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var internalVal = humanVal = "";
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for(i in this.tree.selectedNodes) {
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internalVal += (internalVal?',':'') + i;
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humanVal += (humanVal?', ':'') + this.tree.selectedNodes[i];
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}
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this.inputTag.value = internalVal;
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this.setHumanText(humanVal);
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},
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updateTreeLabel: function() {
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var treeNode;
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if(this.inputTag.value) {
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var innerHTML = '';
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var selectedItems = this.inputTag.value.split(/ *, */);
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for(i=0;i<selectedItems.length;i++) {
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if(treeNode = $('selector-' + this.getName() + '-' + selectedItems[i])) {
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innerHTML += (innerHTML?', ':'') + treeNode.getTitle();
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} else {
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innerHTML += selectedItems[i];
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}
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}
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this.setHumanText(innerHTML);
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} else {
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this.setHumanText('(Choose)');
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}
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}
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}
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TreeMultiselectField.applyTo('div.TreeDropdownField.multiple');
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TreeDropdownField.applyTo('div.TreeDropdownField.single');
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