I am trying to destroy a div and trying to create it once again. I have a span and couple of buttons inside that div. My requirement is to delete the div and recreate the same elements with the same id.
var element = document.createElement("div");
element.setAttribute("id","cellDiv_divValue_"+retrieveDivID+"_"+0);
var divSpan = document.createElement("span");
divSpan.setAttribute("id","cellDiv_divValue_span_"+retrieveDivID+"_"+0);
divSpan.textContent = storeActionName +":"+appendActions.join();
element.appendChild(divSpan);
var deleteBtn = new dijit.form.Button({
id: "cellDiv_divValue_deleteBtn_"+retrieveDivID+"_"+0,
label: "Delete",
class:"primary-button",
style:{float:"left", left:"381px"},
onClick: function()
{
}
});
element.appendChild(deleteBtn.domNode);
var editBtn = new dijit.form.Button({
id: "cellDiv_divValue_editBtn_"+retrieveDivID+"_"+0,
label: "Edit",
class:"primary-button",
style:{float:"left", left:"266px"}
});
element.appendChild(editBtn.domNode);
$('#divValue_'+storeBtnNumber).append(element);
Currently I am able to delete the elements but when I try to recreate them with the same id, the application shows me an error that the id is already registered.
Can someone help me in this respect.
Thanks,
Nirmal Kumar Bhogadi
This is probably due to the dijit (dijit.form.Button.) When you create an instance of a dijit its ID is registered. You should remove the old button using its destroy method.
Related
I have created a dijit.Tree object where every node is a checkbox. When you select/deselect the parent node, the child nodes get selected/deselected;
when one of the children is deselected, the parent gets deselected; when all the children are selected, the parent gets selected. It works perfectly fine.
However I need it to be keyboard accessible. When I navigate to the tree nodes and press spacebar or Enter, nothing happens.
I tried adding tabindex and aria-role to the checkbox (programmatically), but it did not work.
Here is the fiddle - http://jsfiddle.net/pdabade/pyz9Lcpv/65/
require([
"dojo/_base/window", "dojo/store/Memory",
"dijit/tree/ObjectStoreModel",
"dijit/Tree", "dijit/form/CheckBox", "dojo/dom",
"dojo/domReady!"
], function(win, Memory, ObjectStoreModel, Tree, checkBox, dom) {
// Create test store, adding the getChildren() method required by ObjectStoreModel
var myStore = new Memory({
data: [{
id: 'allDocuments',
name: 'All Documents'
}, {
id: 'inboxDocuments',
name: 'Inbox Documents',
parent: 'allDocuments'
}, {
id: 'outboxDocuments',
name: 'Outbox Documents',
parent: 'allDocuments'
}, {
id: 'draftDocuments',
name: 'Draft Documents',
parent: 'allDocuments'
}, {
id: 'finalDocuments',
name: 'Final Documents',
parent: 'allDocuments'
}],
getChildren: function(object) {
return this.query({
parent: object.id
});
}
});
// Create the model
var myModel = new ObjectStoreModel({
store: myStore,
query: {
id: 'allDocuments'
}
});
// Create the Tree.
var tree = new Tree({
model: myModel,
autoExpand: true,
getIconClass: function(item, opened) {
// console.log('tree getIconClass', item, opened);
// console.log('tree item type', item.id);
},
onClick: function(item, node, event) {
//node._iconClass= "dijitFolderClosed";
//node.iconNode.className = "dijitFolderClosed";
var _this = this;
console.log(item.id);
var id = node.domNode.id,
isNodeSelected = node.checkBox.get('checked');
dojo.query('#' + id + ' .dijitCheckBox').forEach(function(node) {
dijit.getEnclosingWidget(node).set('checked', isNodeSelected);
});
if (item.id != 'allComments') {
if (!isNodeSelected) {
var parent = node.tree.rootNode; // parent node id
//console.log(node);
parent.checkBox.set('checked', false);
} else {
var parent = node.tree.rootNode;
var selected = true;
var i = 0;
dojo.query('#' + parent.id + '.dijitCheckBox').forEach(function(node) {
if (i > 0) {
var isSet = dijit.getEnclosingWidget(node).get('checked');
console.log(isSet);
if (isSet == false) {
selected = false;
}
}
i++;
});
if (selected) {
parent.checkBox.set('checked', true);
}
}
}
//console.log(node.id);
},
_createTreeNode: function(args) {
var tnode = new dijit._TreeNode(args);
tnode.labelNode.innerHTML = args.label;
console.log(args);
var cb = new dijit.form.CheckBox({
"aria-checked": "false",
"aria-describedby": args.label
});
cb.placeAt(tnode.labelNode, "first");
tnode.checkBox = cb;
return tnode;
}
});
tree.placeAt(contentHere);
tree.startup();
tree.checkedItems();
//tree.expandAll();
});
}
Any ideas as to how to make it keyboard accessible?
Thanks!
Looking into the dijit/Tree source I see that it sets the function _onNodePress() as an event handler for keyboard events. You can override it (or add an aspect after it) and handle the key presses you want manually. It takes as argument the tree node and an event object that you can use to check specifically for the space and the enter key.
I forked your jsfiddle with an example: https://jsfiddle.net/pgianna/jjore5sm/1/
_onNodePress: function(/*TreeNode*/ nodeWidget, /*Event*/ e){
// This is the original implementation of _onNodePress:
this.focusNode(nodeWidget);
// This requires "dojo/keys"
if (e.keyCode == keys.ENTER || e.keyCode == keys.SPACE)
{
var cb = nodeWidget.checkBox;
cb.set('checked', !cb.get('checked'));
}
}
Do not add role, aria-checked, nor tabindex to the checkbox. Those are already built into the control, so you are adding risk of breaking it down the road. You can probably also get rid of every role="presentation" as those are on <div>s and <span>s which are presentational by nature. Finally, you need <label> on each block of text that is associated with a checkbox if you want this to be accessible. The aria-describedby is incorrect and is the less good option anyway.
I am getting the error: Uncaught TypeError: tree.checkedItems is not a function (line 159)
You also have a big focus management problem. Put the following in your CSS and you will see that it takes two presses of the Tab key for each single control (if starting at a focused checkbox): :focus {outline:2px solid #f00;}
It looks like you have the containing elements stealing any clicks, meaning the correct element never gets selected. The <span> with classes dijit dijitReset dijitInline dijitCheckBox keeps stealing focus as it toggles its tabindex from -1 to 0, taking itself in and out of the tab order. That may be a factor.
I suggest addressing the script error and then looking at focus management.
With dijit, there's all kinds of stuff going on in the background that might be out of your control. As aardrian said, there's lots of role=presentation and all the aria tags on the <input type='checkbox> are superfluous. dijit is probably (incorrectly) setting all that. An <input type='checkbox> already handles selections and it's role is inherently a checkbox. Those aria properties are for when you're making a custom checkbox out of div/span tags.
There is a native checkbox buried down in the code but it has opacity set to 0 so you can't see it. dijit is probably using it for the checkbox events.
The native checkbox also has data-dojo-attach-event="ondijitclick:_onClick". I'm not sure what that means but anytime I see "click" in an event name, I get suspicious that it might not work with a keyboard.
I tried the example on https://dojotoolkit.org/reference-guide/1.10/dijit/form/CheckBox.html and it works with the keyboard. Hit space will check and uncheck the box. Whether you can see the focus on the checkbox is another issue.
As a side note, it might be nice if your checkbox tree used aria-checked="mixed" for the parent branch. Anytime you have child checkboxes where some are selected and some are not, you can use "mixed" for the parent checkbox to indicate a mixture of selections. Not sure if dijit supports that.
So let's say in Sencha Touch, I created a Nested List like so
var NestedList = createList(jsonDataObject,'leftNavigation','list','bookmark-icon');
function createList( data , id , cls, iconCls)
{
var store = new Ext.data.TreeStore({
model: 'ListItem',
root: data,
proxy: {
type: 'ajax',
reader: {
type: 'tree',
root: 'items'
}
}
});
var leftNav = new Ext.NestedList({
// cardSwitchAnimation: false,
dock: 'left',
id: id,
cls: 'card '+cls,
useTitleAsBackText: true,
title: data.text ,
iconCls: iconCls,
displayField: 'text',
width: '350',
store: store});
}
After a while, the contents of jsonDataObject will change (either periodically via a setInterval() call or because of user interaction). I may also need to submit an entirely new jsonDataObject to the NestedList store. So my questions are:
a) How do I get the NestedList to refresh and display a new UI with the new data?
b) Is my implementation of createList() the most appropriate way to create a Nestlisted? Or is there a better way for my purposes?
Because no one answered my question in time, I used a work around.
I kept the code as is in the question. The nested list is used by a container panel. So what I did was remove the old nestedlist from the container panel, destroy it, then create a new nestedlist, and insert it back to container panel. As an example:
// my old nestedlist was item 1 of the container, where container is Ext.TabPanel()
// you can re-use this strategy with any component in the container.items.items array
var oldnestedlist = container.items.items[1];
container.remove(oldnestedlist);
oldnestedlist.destroy();
// create the new nestedlist
var NestedList = createList(jsonDataObject,'leftNavigation','list','bookmark-icon');
container.insert(1,NestedList);
// After you insert the NestedList, the screen hasn't been redrawn yet,
// so i force the user to go back to screen if container.items.items[0] via
// setActiveItem(0). You can choose the screen in any other
// container.items.items array
container.setActiveItem(0);
// Next time someone presses the tab for containers.items.items[1], the screen will automatically redraw
i have a panel which should show the "description" field of "currently activeitem of nestedlist". nestedlist uses the model having fields:
id
text
description
when user taps on any item of nestedList [on selectionchange OR itemtap&backtap], i want to change description in the panel with description of "currently activeItem of nestedList".
Is this possible?
thanks for any help/solution/pointer.
The same problem I had today, and no solution had been found with a nested list, because no single field can be taken from a Ext.data.TreeStore. One solution could be that you have lots of "if-function 'do with all the ID's and then you give each ID a text. But that's not good.
I've decided to make a simple list.
if you want I can show you my solution for the simple list
ps.: I use Sencha Touch 1.1
Update:
NotesApp.views.NaviList = new Ext.List({
fullscreen: true,
flex: 1,
layout: 'card',
scroll: false,
useToolbar: false,
itemTpl: '{text}',
store: store,
listeners: {
itemtap: function (obj, idx, el, e) {
var record = this.store.getAt(idx);
var tle = record.get('text');
index = record.get('index');
NotesApp.views.notesListContainer.setActiveItem(index, { type: 'slide', direction: 'left' });
}
}
}
});
description:
My App has the name: "NotesApp".
"notesListContainer" is a Container where all my List are displayed. "index" is an ID that I get from the store and the calls list.
Now when you tap on my NaviList you set a new ActiveItem in this Container.
thanks a lot for the reply. I also tried using simple list with one Ext.button(back button in case of nestedlist). On itemtap and buttonclink, i change list's content by
var t = new Ext.data.Store and list.setStore(t).
Please let me know if there is any other better option to do it.
How do you make a titlePane's height dynamic so that if content is added to the pane after the page has loaded the TitlePane will expand?
It looks like the rich content editor being an iframe that is loaded asynchronously confuses the initial layout.
As #missingno mentioned, the resize function is what you want to look at.
If you execute the following function on your page, you can see that it does correctly resize everything:
//iterate through all widgets
dijit.registry.forEach(function(widget){
//if widget has a resize function, call it
if(widget.resize){
widget.resize()
}
});
The above function iterates through all widgets and resizes all of them. This is probably unneccessary. I think you would only need to call it on each of your layout-related widgets, after the dijit.Editor is initialized.
The easiest way to do this on the actual page would probably to add it to your addOnLoad function. For exampe:
dojo.addOnLoad(function() {
dijit.byId("ContentLetterTemplate").set("href","index2.html");
//perform resize on widgets after they are created and parsed.
dijit.registry.forEach(function(widget){
//if widget has a resize function, call it
if(widget.resize){
widget.resize()
}
});
});
EDIT: Another possible fix to the problem is setting the doLayout property on your Content Panes to false. By default all ContentPane's (including subclasses such as TitlePane and dojox.layout.ContentPane) have this property set to true. This means that the size of the ContentPane is predetermined and static. By setting the doLayout property to false, the size of the ContentPanes will grow organically as the content becomes larger or smaller.
Layout widgets have a .resize() method that you can call to trigger a recalculation. Most of the time you don't need to call it yourself (as shown in the examples in the comments) but in some situations you have no choice.
I've made an example how to load data after the pane is open and build content of pane.
What bothers me is after creating grid, I have to first put it into DOM, and after that into title pane, otherwise title pane won't get proper height. There should be cleaner way to do this.
Check it out: http://jsfiddle.net/keemor/T46tt/2/
dojo.require("dijit.TitlePane");
dojo.require("dojo.store.Memory");
dojo.require("dojo.data.ObjectStore");
dojo.require("dojox.grid.DataGrid");
dojo.ready(function() {
var pane = new dijit.TitlePane({
title: 'Dynamic title pane',
open: false,
toggle: function() {
var self = this;
self.inherited('toggle', arguments);
self._setContent(self.onDownloadStart(), true);
if (!self.open) {
return;
}
var xhr = dojo.xhrGet({
url: '/echo/json/',
load: function(r) {
var someData = [{
id: 1,
name: "One"},
{
id: 2,
name: "Two"}];
var store = dojo.data.ObjectStore({
objectStore: new dojo.store.Memory({
data: someData
})
});
var grid = new dojox.grid.DataGrid({
store: store,
structure: [{
name: "Name",
field: "name",
width: "200px"}],
autoHeight: true
});
//After inserting grid anywhere on page it gets height
//Without this line title pane doesn't resize after inserting grid
dojo.place(grid.domNode, dojo.body());
grid.startup();
self.set('content', grid.domNode);
}
});
}
});
dojo.place(pane.domNode, dojo.body());
pane.toggle();
});
My solution is to move innerWidget.startup() into the after advice to "toggle".
titlePane.aspect = aspect.after(titlePane, 'toggle', function () {
if (titlePane.open) {
titlePane.grid.startup();
titlePane.aspect.remove();
}
});
See the dojo/aspect reference documentation for more information.
I'm trying to create programatically an EnahncedGrid with a menu. I've got the grid to work, but I've been unable to use the menu. It just not shows up. The code is as follows:
<script>
sMenu = new dijit.Menu({});
sMenu.addChild(new dijit.MenuItem({
label: "Delete Record",
iconClass: "dijitEditorIcon dijitEditorIconCancel",
onClick : function(){
alert(1);
}
}));
sMenu.startup();
/**
* El grid propiamente dicho
*/
var grid = new dojox.grid.EnhancedGrid({
id: "grid_"+i,
query: {
idDocument: '*'
},
plugins: {
nestedSorting: true,
indirectSelection: true,
menus: {rowMenu:sMenu}
},
onRowDblClick: openFile,
structure: layout
})
</script>
Any idea what I'm doing wrong?
I haven't used this myself, but I have two possible suggestions:
First, make sure you're dojo.require-ing "dojox.grid.enhanced.plugins.Menu" and are only instantiating the widgets within a dojo.addOnLoad or dojo.ready.
If you've already done that, the second thing I'd suggest is giving your menu an id, and passing that id to the rowMenu property of the menus object (in other words, pass a string, not the widget itself). Although, the way you're doing it seems like it should work, judging from the code.
You can see a test page with working menus here: http://archive.dojotoolkit.org/nightly/dojotoolkit/dojox/grid/tests/enhanced/test_enhanced_grid_menus.html