In Firefox,if I hold the ctrl key and then I can perform a multi-selection on the web page.How could I disable this functionality?
You have to use the Javascript selectionchange event to notice when the selection changes and then manually remove the selection ranges you don't like.
document.addEventListener("selectionchange", function()
{
var oSel = window.getSelection();
if (oSel.rangeCount > 1)
{
var oFirstRange = oSel.getRangeAt(0).cloneRange();
oSel.removeAllRanges();
oSel.addRange(oFirstRange);
}
});
Here is a working jsfiddle.
Related
I'm implementing functionality to create a link between two nodes on Shift+Alt+Click. Like this
function graphSelectionChange(event){
var selection = event.selection;
if (selection.length === 2 && event.altKey){
var fromitem=selection[0];
var toitem=selection[1];
chart.addData({
links:[{
"id":"ll"+nextId,
from:fromitem.id,
to:toitem.id,
"style":{"label":"newLink"}
}]
});
nextId += 1;
}
}
The altKey seems not to be detected. According to this http://jsfiddle.net/Rw4km/ it is the alt/option button on a keyboard. Any clue?
Use click event (it also has selection attribute).
Selection event does not have altKey property.
There are other selection changes, like selected nodes disappearing, that do not have associated mouse clicks an you probably do not want a link added in such case.
I'm working on an iPad app using Kendo and the DropDownList is throwing an ActionSheet. I'd like to force it to use the Web UI list style. How can I do this?
For anyone interested I was able to hack together a solution. Here's a function that accepts a kendoMobileView as the argument and applies the fix.
//Hack to force dropdowns to act like comboboxes in mobile!
utils.fix.dropdownlists = function(view) {
var dropdowns = view.element.find("[data-role='dropdownlist']");
//Iterate through dropdown elements
_.each(dropdowns, function(item){
var comp = $(item).data("kendoDropDownList");
if(comp && comp.popup) {
comp.popup.bind("open", function(event){
event.sender.element.parent().removeClass("km-popup km-widget");
if(event.sender.element.parent().hasClass("km-popup")) {
//Prevent default open animation.
//Then remove classes and open the popup programitcally
//Easy peasy, Lemon squeezy
event.preventDefault();
event.sender.element.parent().removeClass("km-popup km-widget");
setTimeout(function(){
event.sender.open();
},0);
}
});
}
});
}
Highcharts offers the opportunity to detect clicks on chart points, but is it possible
to detect other events, such as the double click or mousedown event?
Thanks in advance
Each component only supports certain events, for example the Chart component will detect addSeries, click, load, redraw, and selection. I don't believe this set is extensible, so you can't capture a different event like mousedown.
You could try to inspect the source of your page and attach listeners to the elements that HighCharts generates, but this would be an undocumented work-around and would be liable to break in future releases. In addition, if you have to support < IE9 you would need handlers for both SVG and VML generated markup.
You can get creative with some events. Here's an example of detecting a double click using a click handler:
Working Demo
var clickDetected = false;
// create the chart
$('#container').highcharts({
chart: {
events: {
click: function(event) {
if(clickDetected) {
alert ('x: '+ event.xAxis[0].value +', y: '+ event.yAxis[0].value);
clickDetected = false;
} else {
clickDetected = true;
setTimeout(function() {
clickDetected = false;
}, 500);
}
}
}
},
...
It's possible, but in a different way. In Highcharts you can add event to each element using element.on. For example:
chart.series[0].data[0].graphic.on('dblclick', function() {
//callback here
});
And simple jsFiddle for you. Good thing is that you can add to all elements, and make sure work in all browsers.
I try implement Kendo UI PanelBar (see http://demos.kendoui.com/web/panelbar/images.html) If I open some items (Golf, Swimming) and next click to "Videos Records", I have expanded items. But when I do refresh page (click on some link), all expanded structure is lost.
On KendoUI forum I found, that I can get only possition of selected item and after reload page I must calculate all noded. Is there any way, how can I have expanded items in my situation? If do not need, I don't want to use the html frames.
Best regards,
Peter
Thank you for your answer, was very usefull. I add here code of skeleton of jQuery which remember 1 selected item now. Required add jquery.cookie.js [https://github.com/carhartl/jquery-cookie]
function onSelect(e) {
var item = $(e.item),
index = item.parentsUntil(".k-panelbar", ".k-item").map(function () {
return $(this).index();
}).get().reverse();
index.push(item.index());
$.cookie("KendoUiPanelBarSelectedIndex", index);
//alert(index);
}
var panel = $("#panelbar").kendoPanelBar({
select: onSelect
}).data("kendoPanelBar");
//$("button").click(function () {
// select([0, 2]);
//});
function select(position) {
var ul = panel.element;
for (var i = 0; i < position.length; i++) {
var item = ul.children().eq(position[i]);
if (i != position.length - 1) {
ul = item.children("ul");
if (!ul[0])
ul = item.children().children("ul");
panel.expand(item, false);
} else {
panel.select(item);
}
}
}
// on page ready select value from cookies
$(document).ready(function () {
if ($.cookie("KendoUiPanelBarSelectedIndex") != null) {
//alert($.cookie("KendoUiPanelBarSelectedIndex"));
var numbersArray = $.cookie("KendoUiPanelBarSelectedIndex").split(',');
select(numbersArray);
}
else {
// TEST INIT MESSAGE, ON REAL USE DELETE
alert("DocumenReadyFunction: KendoUiPanelBarSelectedIndex IS NULL");
}
});
The opening of the panels happens on the client. When the page is refreshed, the browser will render the provided markup, which does not include any additional markup for the selected panel.
In order to accomplish this, you will need to somehow store a value indicating the opened panel. The easiest way to accomplish this would be with a cookie (either set by JavaScript or do an AJAX call to the server).
Then, when the panelBar is being rendered, it will use the value in the cookie to set the correct tab as the selected one.
You can use this block to work withe the selected. in this example, i am just expanding the panel item. You can do other things such as saving panel item in your dom for later use or may be saving it somewhere to use it later:
var panelBar = $("#importCvPanelbar").data("kendoPanelBar");
panelBar.bind("select", function(e) {
var itemId = $(e.item)[0].id;
panelBar.expand(itemId);// will expand the selected one
});
How can i maintain scroll position on postback after sorting a grid table that uses MvcContrib framework?
The usual way is to use some javascript to set the current scroll position to a hidden field, then restore that position on page load (usually in a jquery ready event).
However, that's really just a side effect. You should be doing some kind of ajax command to update the grid rather than a postback, then no scrolling required.
Use jQuery and client side cookie.
$(function(){
var posName = location.href + "_top";
$(window).unload(function() {
var top = $(document).scrollTop();
$.cookie(posName, top);
});
var goTop = parseInt($.cookie(posName));
if (goTop) {
$(document).scrollTop(goTop);
$.cookie(posName, "");
}
});
Hope this code.
A useful solution is posted here : http://www.experts-exchange.com/Hardware/Servers/Q_28082177.html
$(function(){
var top = parseInt($.cookie("top"));
if(top) $(document).scrollTop(top);
$(document).scroll(function() {
var top = $(document).scrollTop();
$.cookie("top", top);
})
});
This is a very old thread but I have posted this for developer who will be searching for this kind of issue, may help.