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How to show tooltip for grid cells?

I have a grid and when doing a mouseover on a cell a tooltip shows up for each cell. That works great. However, I have couple issues:
1) I only want to show tooltips for cells under the flag column.
2) If a cell doesn't have a value don't show a tooltip.
3) Finally how to make the tooltip go away only when doing a mouseout from the cell
Thanks a lot in advance!
Here's my working code: LIVE DEMO
Code snippet:
grid.tip = Ext.create('Ext.tip.ToolTip', {
target: view.el,
delegate: '.x-grid-cell',
trackMouse: true,
listeners: {
beforeshow: function updateTipBody(tip) {
if (!Ext.isEmpty(grid.cellIndex) && grid.cellIndex !== -1) {
header = grid.headerCt.getGridColumns()[grid.cellIndex];
tip.update(grid.getStore().getAt(grid.recordIndex).get(header.dataIndex));
}
}
}
});

1) You have to add a custom CSS class to your grid cells through a renderer and then use that CSS class as a delegate for your tooltip.
2) You have full control over the cells you want to add the CSS class to based on the value or other record values in the renderer. Do not add the custom CSS class to the grid cell if the value is empty.
3) hideDelay: 0 on the tooltip.
Required code changes:
dataIndex: 'color',
renderer: function(v, meta) {
if(v) meta.tdCls = 'customCls';
return v;
}
and
target: view.el,
delegate: '.customCls',
trackMouse: true,
hideDelay: 0,
However, there seem to be issues with the uievent, at least in Firefox, that you should be aware of. The event is not always fired as expected, sometimes it is not fired again when moving between columns of the same row, sometimes it is fired with columnIndex = -1 when moving between rows. The following screenshot has been taken on your sample page:
There is another, less hacky and more supported possibility to implement this: Add quicktips directly in the renderer.
For this, remove all your custom tooltip code.
Add to the renderer a data-qtip attribute:
dataIndex: 'color',
renderer: function(value, meta, record) {
if(value) meta.tdAttr='data-qtip="'+value+'"';
return value;
}
You can modify the hideDelay in the QuickTipManager as shown in the sample code from the QuickTipManager documentation:
// Init the singleton. Any tag-based quick tips will start working.
Ext.tip.QuickTipManager.init();
// Apply a set of config properties to the singleton
Ext.apply(Ext.tip.QuickTipManager.getQuickTip(), {
hideDelay: 0
});
Relevant fiddle

You don't need to wrire an extra code for tool tip just for Flag column write render function and in the write a condition to show only for not empty values.
like
{
text: 'Flag',
flex: 1,
dataIndex: 'color',
renderer: function(value, meta, record) {
if(!Ext.isEmpty(value))
meta.tdAttr='data-qtip="'+value+'"';
return value;
}
}

Resizing a responsive DataTable is very slow, how can I speed it up?

I have a DataTable which has a couple of thousand records in it.
I have the responsive plugin for it, and the responsive option is enabled.
I also tried enabling the deferRender option, but this appeared to have no impact on the time taken.
When I resize the browser there is a delay of 1s - 2s. This happens in IE11, and MS Edge. The performance in chrome isn't fantastic, but at 0.5s it's tolerable.
I am using custom ordering functions, but those functions are omitted for brevity. I'm fairly sure I know where the issue is, and it's not in them. I can provide them if required.
Here's my initialisation code:
this._dataTable = $("#listtable").DataTable({
paging: true,
responsive: true,
deferRender: true,
columns: [{
title: "Name",
data: "thing.name"
}, {
title: "State 1",
data: "state1",
type: "state1",
render: (data, type, row, meta) => {
return this._renderState1(data, meta);
}
}, {
title: "State 2",
data: "state2",
type: "state2",
render: (data, type, row, meta) => {
return this._renderState2(data, meta);
}
}]
});
I load the data by calling dataTable.row.add for each item, and then calling dataTable.draw at the end.
The performance issues occur after all the data has been successfully loaded, so I don't think it's to do with that.
Digging further in to the profiler information I found that it was the rendering of the rows that was the issue:
By commenting out code in my custom render functions shown in the initalisation code, I found that the issue lay with finding the containing cell to set the background colour:
var cell = this._dataTable
.cell({ row: meta.row, column: meta.col })
.node();
Here's the rest of the code for setting the background colour:
var cellClass = this._getStateClass(state);
$(cell).addClass(cellClass);
If I comment the cell retrieval line out then the performance isn't amazing, but it is acceptable.
So my question is how can I have a custom background colour for cells while maintaing the responsive performance?
A fast alternative to dataTable.cell would do, as would an alternative approach to setting the background colour.

I managed to solve this issue by removing the need to find the cell.
I put a class on the columns that removed the padding they have.
Style:
.cell-state1 {
padding: 0;
}
Configuration:
this._dataTable = $("#listtable").DataTable({
paging: true,
responsive: true,
deferRender: true,
columns: [{
title: "Name",
data: "thing.name"
}, {
title: "State1",
data: "state1",
type: "state1",
className: "cell-state1",
render: (data, type, row, meta) => {
return this._renderState1(data, meta);
}
}]
});
Then I changed my render functions so they returned the content in a div which filled the cell, had the background colour, and added the padding back in.
Style:
.cell-state1-somestate {
height: 100%;
width: 100%;
padding: 8px;
background-color: #000000;
color: #ffffff;
}
Render Function:
function _renderState1 (state1) {
var cssClass = _this._getState1CellClass(state1);
var text = _this._getState1CellText(state1);
var content = "<div class='" + cssClass + "'>" + text + "</div>";
return content;
};
This left me with one final issue.
I have custom order functions, and now rather than being passed the text value they're passed the div containing the text value.
I used a little bit of jQuery to extract the text:
var floodAlertSeverity = $(content).html();.
It'd be nice if the order functions received the original data, rather than the rendered data, but oh well.

I had a similar issue with IE11 becoming extremely slow when resizing the browser window in responsive mode, which made for a pretty terrible user experience.
I don't have the time nor the expertise to fix the underlying issue (probably just IE11 being slow), but I came up with an elegant hack to work around the problem, which is basically to throttle the calls to the function that adjusts the column sizes.
The performance profiler in IE11 showed that calls to _fnAdjustColumnSizing(oSettings); were taking most of the CPU time, and the calls to this method are triggered by the 'resize.DT-YourTableNameHere' event, so using a simple timer we can delay the call to this function until the user is done resizing the window:
var dtResizeTimer;
var allowPropagation = false;
$(window).on("resize.DT-visitsTable", function (event) {
if (allowPropagation === false) {
event.stopImmediatePropagation();
clearTimeout(dtResizeTimer);
dtResizeTimer = setTimeout(function() {
allowPropagation = true;
$(window).trigger("resize.DT-visitsTable");
}, 100);
} else {
allowPropagation = false;
}
});
Obviously you'll need to replace visitsTable with whatever id you gave to your table element.
It still takes a second for IE11 to update the table after the user is done resizing, but at least the resizing itself is now smooth. There might be a better solution, but for now, this calms my frustration with IE11.

ExtJS 5.0 - adding button as overlay to component

We are working with software supplied by a third party, and we are not allowed to modify it, can use only overrides.
I would like to create a new button and overlay it on top of a text input so that they are close together.
I'm having trouble getting the overlay to align, instead it appears top left on the screen. So of course it doesn't align to the text input. Sample code is below, in this case implemented in the view initComponent override after this.callParent([]); is called.
var viewport = Ext.ComponentQuery.query('viewport')[0];
var overlay = viewport.add({
xtype: 'panel',
fullscreen: true,
left: 0,
top: 0,
width: 120,
height: 40,
items:[{
xtype: 'button',
text: 'Find Address',
handler: function() {
alert('Got it!');
}
}],
styleHtmlContent: true
});
var textField = this.query('*[itemId=textField]')[0];
overlay.showBy(textField, 'c-c?');
I've tried using floating: true and lots of other approaches.
Once I get it to position properly, is there a way to have the button respond to tab order correctly? That is, tab out of the text field, then have the button get focus?

As I understand from your question, you have trouble with setting position to a component. If it is the problem, you can set xy coordinate. Look at this fiddle:
https://fiddle.sencha.com/#fiddle/tpl
viewport.down('#idOverlay').setXY([150, 140]);
Edit:
Ext.define('OverriddenViewport', {
override: 'ExampleViewPort',
initComponent: function() {
// Set up first
this.callParent([]);
this.add(overlay);
this.addListener('afterrender', function(viewport) {
viewport.down('#idOverlay').setXY([220,50]);
viewport.down('#idButton').addListener('blur', function(button) {
viewport.down('#idTextfield').focus();
console.log('textfield is focussed');
});
viewport.down('#idTextfield').addListener('blur', function(button) {
viewport.down('#idButton').focus();
console.log('button is focussed');
});
});
}
});

If you can access the source (just to look around) you maybe can create an override of the corresponding class. Create a override, and copy all of the code of the class (form?) into your override.
Here some additional info about creating overrides in ExtJs:
http://moduscreate.com/writing-ext-js-overrides/
https://sencha.guru/2014/12/04/abstract-vs-override/
In your override create a trigger (on the field you want to expand) with your functionality:
{
fieldLabel: 'My Custom Field',
triggers: {
foo: {
cls: 'my-foo-trigger',
handler: function() {
console.log('foo trigger clicked');
}
}
}
}

How to add a jquery ui slider to each cell of slickgrid?

I need to add a jquery ui slider to each cell of slickgrid. Number of records is over 10,000 with over 150 columns. The problem is that the initial set of sliders are rendered fine but as I scroll (left or right), they disappear. Somehow, the grid is not getting invalidated for those cells. I am using the following formatter on the column:
SliderFormatter = function (row, cell, value, colDef, dataContext) {
var html = "<div class='mySlider' id='slider_" + dataContext['id'] + "'></div>" + value;
return html;
}
and invoking the slider from my document.ready callback.
Any help will be appreciated. Thanks in advance !

SlickGrid renders only what's visible in the viewport, plus a small buffer. As you scroll, rows/cells are dynamically added and removed.
What this means for your case, is that when you initialize the slider widget in your document.ready callback, you're only initializing a tiny portion of them, and the ones that did get initialized, don't get re-initialized when the cells they are in are removed and recreated by SlickGrid.
SlickGrid doesn't allow you to use jQuery widgets like the slider in cells and requires that formatters output pure HTML in order to make it hard to implement the grid in a way that will slow it down. (I won't get into my reasoning behind that admittedly controversial decision.)
My advice here is to avoid using the jQuery UI slider here. It is simply not scalable or performant enough. Without virtualization, what you're trying to do is impossible - initializing 100 sliders is going to be really slow; initializing 10'000 x 150 of them is out of the question. With virtualization, you'll need to initialize and destroy them on the fly as you're scrolling around, and that's just too slow to scroll smoothly.
Consider using an HTML5 range input - <INPUT type="range">. It's supported by all major browsers with the exception of IE <10. See http://caniuse.com/#feat=input-range.

I've created an example using SlickGrid's async post-render option. #Tin is probably right that it would be better to use the native <input type="range"> but just in case you need to support older browsers here's how you can do it.
function waitingFormatter(value) {
return '<div class="slider"></div>';
}
function renderSlider(cellNode, row, dataContext, colDef) {
var cell = $(cellNode);
cell.find('.slider').slider({
value: dataContext.value,
slide: function(e, ui) {
data[row].value = ui.value;
cell.prev().html(ui.value);
}
});
}
var grid;
var data = [];
var columns = [
{ id: "title", name: "Title", field: "title", sortable: false, width: 120, cssClass: "cell-title" },
{ id: "value", name: "Value", field: "value", sortable: false, editor: Slick.Editors.Integer, width: 40, validator: requiredFieldValidator },
{ id: "chart", name: "Slider", sortable: false, width: 425, formatter: waitingFormatter, rerenderOnResize: true, asyncPostRender: renderSlider }
];
var options = {
editable: true,
enableAddRow: false,
enableCellNavigation: true,
asyncEditorLoading: false,
enableAsyncPostRender: true
};
$(function () {
for (var i = 0; i < 500; i++) {
var d = (data[i] = {});
d["title"] = "Record " + i;
d["value"] = Math.round(Math.random() * 100);
}
grid = new Slick.Grid("#myGrid", data, columns, options);
})

jqGrid - Dragging a row to sort it screws up cell widths

My problem: When I drag a row in jqGrid, and it completes a custom reload function, the cells of the grid, previously all of varying widths set when the grid is defined, are resized to all be the same width. This happens in Webkit browsers but not in Firefox.
Code:
I have dragging to sort enabled on a grid:
$mygrid.jqGrid(
'sortableRows', {
update: function(e, ui) {
sort_grid(e, ui);
}
}
);
As you can see I have a sorting function called on drag complete, sort_grid. Here it is:
function sort_grid(e, ui) {
var current_grid = $(ui.item[0]).closest('table').attr('id');
var $current_row, moved_id, next_id, next_priority;
var $moved_row = $('#' + current_grid + ' tr');
var cnt = 0;
this_id = ui.item[0].id;
$moved_row.each(function () {
if ($(this).attr('id') == this_id) {
$current_row = $moved_row.eq(cnt);
moved_id = $current_row.attr("id");
next_id = $current_row.next().attr("id");
next_priority = $current_row.next().children("td:first").attr("title");
}
cnt++;
});
if ( typeof moved_id !== 'undefined' ) {
if ( next_priority == 'undefined' ) {
next_priority = '999';
}
$.ajax({
url:my_url,
type:"POST",
data:"moved_id=" + moved_id + "&next_id=" + next_id + "&next_priority=" + next_priority,
success: function(data) {
$('.grid').setGridParam({loadonce:false, datatype:'json'}); // force grid refresh from server
$('#' + current_grid).trigger("reloadGrid");
$('.grid').setGridParam({loadonce:true}); // reset to use local values
}
})
}
}
Once I hit that reload trigger $('#' + current_grid).trigger("reloadGrid"); and reload finishes the grid now has incorrect widths on the cells in the grid (they go from being of various widths to all being the same width).
When the grid was originally created it had widths defined in the normal jqGrid fashion:
colModel:[
{name:'one', index:'one', sortable:true, width:45},
{name:'two', index:'two', sortable:true, width:180},
]
but after the grid reload the widths are reset all be the same width (I assume this is the total width of the grid being evenly divided over the total number of cells in the row). So, do I need to explicitly set these widths again, perhaps with something like the following called after the grid reloads?
$('.grid').setGridParam({
colModel:[
{name:'one', index:'one', sortable:true, width:45},
{name:'two', index:'two', sortable:true, width:180},
]
});
I tried the above fix, redefining the colModels after reload and explicitly setting the widths, but it had no effect. Weirder, if I go into the browser console and set the widths with javascript it also has no effect. That's got me stumped.
Unfortunately for me it looks like the jqGrid "Answer Man" (Oleg) is not around... lol.

I faced the same problem for Chrome. I recreated it here http://jsfiddle.net/gZSra/. Just drag the row and then sort any column.
But after few hard hours of debugging jqGrid sources I finally fixed this bug. The problem appears in emptyRows method of jqGrid.
emptyRows = function (scroll, locdata) {
var firstrow;
if (this.p.deepempty) {
$(this.rows).slice(1).remove();
} else {
firstrow = this.rows.length > 0 ? this.rows[0] : null;
$(this.firstChild).empty().append(firstrow); // bug "activation" line
}
if (scroll && this.p.scroll) {
$(this.grid.bDiv.firstChild).css({height: "auto"});
$(this.grid.bDiv.firstChild.firstChild).css({height: 0, display: "none"});
if (this.grid.bDiv.scrollTop !== 0) {
this.grid.bDiv.scrollTop = 0;
}
}
if(locdata === true && this.p.treeGrid) {
this.p.data = []; this.p._index = {};
}
},
*In recent jqGrid-4.4.4 this code begins from 1070 line of jqGrid.src.js
The problem connected removing and then appending firstrow. This row defines width of columns - one of it's cells in my jsFiddle example is
<td role="gridcell" style="height:0px;width:60px;"></td>
That is why problem seems to be connected with some Chrome's or Webkit's dynamic table behaviour.
FIX
Replace infected else scope with next line
$(this.firstChild).find('tr:not(:first)').remove();
It's not hard to see that instead of removing all lines and then appending first back, I just selecting and removing all except first row.
Result jsFiddle: http://jsfiddle.net/HJ3Q3/
Tested in Chrome, FF, IE 8 & 9.
Hope this fix will soon become part of jqGrid sources.

.trigger('reloadGrid');
is causing issues with sortablerows.
Below work around might help you (Unload & reload grid)
Create a function to configure grid, like below
jQuery().ready(ConfigureGrid);
function ConfigureGrid(){
jQuery("#grdCategory").jqGrid({
url: '/controller/action',
datatype: "xml",
colNames: ['Order', 'Name', 'Page Title', 'Is Active', 'Action'
],
colModel: [
{ name: 'col1', index: 'col1', width: 50, sortable: true, sorttype: 'int' }
, { name: 'col2', index: 'col2', width: 150, sortable: true }
],
rowNum: 10,
rowList: [10, 20, 30],
});
$("#list1").jqGrid('navGrid', '#pager1', { edit: false, add: false, del: false, search: true });
$("#list1").jqGrid('sortableRows', { update: function (event, ui) { updateOrder() } });
}
Create function to reload grid
function loadGrid() {
$('#grdCategory').jqGrid('GridUnload');
ConfigureGrid();
}
use loadGrid() function in ajax call back or to refresh grid

Have you tried to setup this property in your jQgrid options
width: 'auto',
If this doesnt work try reloading your grid after the update of the row
jQuery('.grid').trigger('reloadGrid');

The comment of PokatilovArt needs more attention : jqGrid - Dragging a row to sort it screws up cell widths .
It solves the problem in Chrome.
Here is the parameter to change in jqGrid :
deepempty : true
In jqGrid wiki, here is the definition of this option.
This option should be set to true if an event or a plugin is attached to the table cell. The option uses jQuery empty for the the row and all its children elements. This of course has speed overhead, but prevents memory leaks. This option should be set to true if a sortable rows and/or columns are activated.