I have the following bit of jquery:
http://jsfiddle.net/tad604/Ck2qk/10/
I want the foo div's click handler to not fire, when you click and drag. I've tried doing all sorts of things inside the stop/start events of the drag (event.stopPropagation() etc) all to no avail. The click handler is fired after the drag event regardless.
It's annoying, but the only fix is to remove the event on drag start and put it back on drag stop. Try this:
$(".foo").click(function(){
alert("blah");
});
$(".bar").draggable({
stop: function(event) { setTimeout(function() {
$(".foo").click(function(){
alert("blah");
}); }, 100)},
start: function(event) { $('.foo').unbind('click'); }
});
Now there is still the problem that your click events are probably a bit more complicated than this, and you probably don't want to have to rewrite them. You can save the events for later using jquery data like this:
var events = $('#test').data("events");
Alternatively, you can use jquery live function to attach the click event so the event will only ever be binded to an element that matches that selector. That means if you change the class while dragging, so that it no longer matches that selector, it would no longer have that click event. Something like this might work:
$(".bar .foo").live('click', function(){
alert("blah");
});
$(".bar").draggable({
stop: function(event) { setTimeout(function() {
$(".draggableBar").removeClass('draggableBar').addClass('bar');
}, 100)},
start: function(event) { $(this).removeClass('bar').addClass('draggableBar'); }
});
You'd also have to update the css so draggablebar gets the same style as bar.
Related
I have an input element inside a Jquery-UI selectable element. And I want to fire the blur event when clicking outside the input, but it's not possible, because of the container, the selectable element stops propagating the mousedown.
Example here.
How can I fire the blur event?
I come across these problems a lot while working on complex UI stuff, here give this a try:
http://jsfiddle.net/LNtqE/5/
What the code is doing is registering a psuedo-blur event to the document that will only fire once, then unbind itself. The event will only fire if the target is NOT the input that registered it... this could work for all inputs, or specific ones depending on what you feed to the selector :)
$(document).ready(function(){
$('#selectable').selectable({});
$("input").on("focus", function(e) {
var $input = $(this);
$(document).on("mouseup", function(e2) {
if( !$(e2.target).is( $input )) {
$input.trigger("blur");
$(this).off(e2);
}
});
});
});
$(document).on("pagebeforeshow", function(event) {
$("#mybtn").on("click", function(e) {
$.mobile.showPageLoadingMsg();
$.mobile.changePage("twitter.html", {
reloadPage: false, changeHash: true,
});
$('#mybtn').unbind('');
});
});
Can u tell me why Unbind is important in Jquery mobile and Please tell me best way To unbind events.I used Following way to bind and unbind events.Is that ok
Have a look at this example: NO UNBIND USED
CODE
$("#page2").on("pagebeforeshow", function(){
$("#testBtn").on("click", function(){
alert("Hi!");
});
});
If you go from page 1 to page 2, and then click the button named Click me you will see that the alert "Hi!" is shown properly. The event was binded on pagebeforeshow, till now everything is ok.
Now go back to page1, and then load again page2, click again the Click me button.. you will see that the alert is shown 2 times! and this is WRONG. That's why you need to unbind the event BEFORE you bind it again.
Basically, every time you load page2, you bind a new event to the button.. so, if you load 10 times that page, you will have 10 events binded to the button, that will fire once the button is clicked.
Here's a working fiddle with the unbind (to unbind the event, I used off()): UNBIND USED
CODE
$("#page2").on("pagebeforeshow", function(){
$("#testBtn").off("click").on("click", function(){
alert("Hi!");
});
});
have a look here to understand why I used off() instead of unbind(), and also here if you wat to see how off() works
I hope this helps to clarify your doubts..
I am using a jQuery dialog and I would like to add some functionality to the close button in the upper right and corner of the dialog frame. Can I accomplish this by simply adding a close function to the dialog without it affecting the cancel button contained within the dialog? Meaning the cancel button obviously closes the dialog and performs its own function but the close button in the dialog frame needs to do something else. Hopefully I have explained that clearly enough.
If you are using the buttons options within the dialog, and one of them is Cancel, then yes. You can obviously create your own function for the Cancel button and then a seperate one with the close event. Just to be safe, you'll probably want to include preventDefault() in the function for your Cancel button.
$('#dialog').dialog({
buttons: {
"Ok" : function() {
//perform whatever
},
"Cancel" : function(e) {
e.preventDefault();
//perform whatever
},
close: function() {
// perform special CLOSE function
}
});
Actually I used this method below to accomplish this. It seems to work just fine so I don't know if there are any drawbacks with going this way. Here is the code:
$("#dialog").dialog({
...dialog code goes here...
}).bind('dialogclose', function(event, ui) {
... dialog close code goes here...
});
I suppose the answer above is better as it is clearer and cleaner implementation.
I try to show context menu jstree on hover event with using api context menu plugin, but it doesn't work. Have you any idea how to do this?
I had to implement the same thing. Here's what I ended up doing:
var $treeView = "myTreeList";
$treeView.jstree({
/* options */
})
.on('loaded.jstree', function() {
$(".myTreeList a").hover(
function(){
$treeView.jstree("show_contextmenu", $(this));
}
);
})
I just hooked up a hover event to every anchor in the tree when the loaded event fired (don't try to use the li elements or the event on a child will fire along with all it's ancestors). You could also use "on" instead of just hover and you wouldn't need to do this in the loaded event handler but that's what worked for me.
EDIT:
the jQuery UI selectable widget has a callback built into it, stop, I need to know how to trigger this event programmatically.
(this was poorly worded)
I've attached an event listener to the jQuery UI Selectable Widget. How can I programmatically trigger the stop event?
Ex Selectable:
$("table").selectable({
filter: "tr",
stop: function(){
//do stuff
}
});
// Various attempts at triggering the stop event
// one
$("table .ui-selected").click();
// two
$("table .ui-selected").select();
// three
$("table .ui-selected").trigger("click");
// shot in the dark 1
$("table").selectable('widget').trigger('stop');
// Shot in the dark 2
$("table").trigger('stop');
// really long shot in the dark
$("table").selectable('widget').call('stop');
Further Attempts
// selectablestop event
$("#table").selectable('widget').trigger('selectablestop');
$("#table .ui-selected").trigger('selectablestop');
If you want to trigger the event outside of the control you can simply call .trigger(). This assumes you are using the .bind() and not the anonymous stop:function() in options.
$("#selectable").selectable({});
$("#selectable").bind("selectablestop", function(event) {
$("body").append("<h1>did selectablestop</h1>");
});
$(":button").click(function() {
$('#selectable').trigger('selectablestop');
});
Code example on jsfiddle.
Edit
Another way would be to retrieve the stop: option value (which would be the function)
var s = $('#selectable').selectable( "option" , "stop");
s(); //call the function.
Code example on jsfiddle.
I ended up doing this, found at How to programmatically select selectables with jQuery UI?
$('#selectable').data("selectable")._mouseStop(null);
This will trigger the mouse stop event and execute the binded stop function on the selectable. If there's a way to trigger the stop in a more elegant way, I would love to see.