I am using framework7in my mobile app and I want to PhotoBrowser to display my images.
However, I want to detect when user close the PhotoBrowser so that I can process whatever is needed. In the documentation there is a onClose(photobrowser) callback function. But I am not sure how it works.
Based on the developer's coding conventions, it should be:
myPhotoBrowser.on('close', dosomefucntion());
but error:
myPhotoBrowserPopupDark.on is not a function
I tried
onClose(myPhotoBrowser, dosomefucntion());
and nothing happen, not even error.
I check his other framework SwiperSlider, he seems to use
mySwiper.on('slideChangeStart', function () {
console.log('slide change start 2');
});
to handle the callback function.
What seems to be the issue and how can I resolve this?
what is type property of your photoBrowser? if you set your photoBrowser object type to "page" onClose event won't trigger.
https://github.com/nolimits4web/Framework7/issues/1243
Related
I am trying to display a div on click. The function that is supposed to make the magic happen is:
$(document).ready(function showGogoasa() {
$('.gogoasa-newsletter').show();
});
Unfortunately, it does nothing. Which makes me scratch my head for hours as I have done small things like this in the past and they worked. I am trying to make this modification on the website of a client.
When I check the firebug console it says the following: ReferenceError: showGogoasa is not defined
I tried looking on Google for this kind of error but the similar cases had this kind of issue for not declaring a variable. Well, I do not have any variables.
I am trying to display a div on click.
Your code is running the function on a ready event and doesn't give the error you describe.
Presumably (it would have helped if you had provided a complete test case) you are also trying to bind the function as a click handler, but you can't do that because you have defined it using a function expression and not a function declaration (so it doesn't create a variable called showGogoasa outside of its own scope).
Define the function separately, then assign call it and bind it as a click event handler on the ready event.
$(document).ready(function ready_handler() {
function showGogoasa() { // Define it as a variable in the current scope
$('.gogoasa-newsletter').show();
}
showGogoasa(); // call it now
$("button").on("click", showGogoasa); // call it then
});
Well, I do not have any variables.
That's the problem :)
Functions are first class objects and when you say showGogoasa() that means "Get the value of showGogoasa and call it as a function".
Using jsfiddle or providing more code would have been helpful.
One issue is that you are missing the click event handler. For example when the user clicks on X then Y should happen/show. The following simple example may help you to see how it works:
http://jsfiddle.net/fionaredmond/1vbagj12/
$(document).ready(function(){
$("#showGogoasa").click(function(){
$(".gogoasa-newsletter").show();
});
});
$(document).ready(function() {
$('#idOfYourClickerElement').on('click', function(){
$('.gogoasa-newsletter').show();
});
});
So here' s the piece of code. I'm very new to JavaScript so don't be afraid to explain the obvious
$(".my-css-class").on("click", function() {
($(this).attr("data-property-1"), $(this).attr("data-property-2"), this);
});
There's an element in the .jsp page that looks like this:
<i class="clickMe"></i>
I know the .jsp creates a link-icon, and that the above JavaScript is an event handler. I know that it passes these 3 values as arguments another JavaScript method:
function doStuff(prop1, prop2, obj) {
if (prop1 == 'foo') {
//do stuff with prop2
}
else{
// do stuff with obj
}
}
It all works fine. What I want to know is what exactly is going on to make it work? I can't find anything in the code that connects what the event-handler returns to the 'doStuff' java-script function.
The names are totally different, so it's not reflection, it can't be parameter matching because there's other functions with the same number and type of parameters in the file, it can't be convention based because it still works if I find/replace the name of the function to gibberish.
I guess basically I'm asking what this line is doing:
($(this).attr("data-property-1"), $(this).attr("data-property-2"), this);
tl;dr: I'm at a loss, I know how the properties get as far as the onClick event-handler's anonymous function - but how does JavaScript know to pass them as arguments the to the doStuff() function?
the onClick event is a standard event triggered on click of any clickable html element and is automatically raised by the DOM.
You are hooking in to this by listening on any matched ".my-css-class" elements for an onClick Event.
The jquery syntax ".on" has been simplified over time and allows you to hook into any number of events like "submit" - OnSubmit event , or "load" - onLoad Event
Wherever your on("click", myFunction) event hook is picked up, your myFunction will execute.
Looking at your second point...
because it still works if I find/replace the name of the function to gibberish.
The DoStuff function will be found and replaced across all files in your site? or page? or open tabs? , so therefore it must exist somewhere as "doStuff(" or "giberish(".
so when you do a global find/replace, do each one slowly, until you locate it.
Finally, when you do a view source in the browser, this should either explicitly show you the doStuff function, or at the very least give you a clue as to satelite files loaded at runtime, where you can go and investigate.
Use firebug in firefox to debug loaded resources; the ".net tab" to view external loaded resources and the html/javascript they might contain. (for example: your master page might be loading in an embeded resource that contains the doStuff method, becuase of a user or server control reference in that master page)
Also have a look at this:
http://www.developerfusion.com/article/139949/debugging-javascript-with-firebug/
You can step through the javascipt piece by peice until it hits the doStuff method.
Just remember to set at least 1 breakpoint ;-)
I'm working with Solr 4.3.0 and implementing Ajax-Solr for the interface. However, Ajax-Solr does not save state automatically. There is a ParameterStore and ParameterHashStore method but they don't work with legacy browsers. I used my google-fu and found the following but it doesn't work as intended:
https://github.com/evolvingweb/ajax-solr/pull/23
...with a few more resources I came up with this:
<script>
var Manager;
(function ($) {
Manager.setStore(new AjaxSolr.ParameterHashStore());
Manager.store.exposed = [ 'fq', 'q', 'start' ];
Manager.init();
// Establish Variables
var History = window.History; // Note: We are using a capital H instead of a lower h
if ( !History.enabled ) {
// History.js is disabled for this browser.
// This is because we can optionally choose to support HTML4 browsers or not.
return false;
}
State = History.getState(),
// Bind to State Change
History.Adapter.bind(window,'statechange',function(){ // Note: We are using
statechange instead of popstate
// Log the State
var State = History.getState(); // Note: We are using History.getState() instead
of event.state
History.log('statechange:', State.data, State.title, State.url);
});
// Log Initial State
History.log('initial:', State.data, State.title, State.url);
})(jQuery);
</script>
But it doesn't work. The Forward and Back buttons are broken in all browsers and nothing gets logged to the console.
What am I missing or is v4.3.0 inherently borked right now and needs a patch?
Would greatly appreciate any help. Thank you!
I know nothing about AJAX-Solr. But I think discussing some few things with you might help.
If AJAX-Solr works the same way the normal AJAX do, then AJAX-Solr will execute some server-side function and outputs it in client-side (of course without refreshing the actual page). As consequence, you should put the function triggering the ajax call inside your History.Adapter.bind(window,'statechange',function().
About State = History.getState(); it is responsible of returning the state data of a pushed state in history stack (url, title, ajax parameters). please to read the doc about hisrory.js on github. Note also that you are using a comma instead of semicolon in your code. In addition, you are calling this function twice. Call it only one time inside your Bind function to get the state parameters and use them in your ajax call (in order to refresh the part of your page while navigating over brower back-forward buttons).
I advise you to read also Back-Forward buttons of browser are showing weird behaviour. History.js, maybe it will help you understand positionning of ajax regarding Bind.
Good luck.
I can set the onclick handler using jQuery by calling
$('#id').click(function(){
console.log('click!');
});
Also using jQuery, how can I get a reference to the function which is currently handling the click() event?
The reason is that I have another object and want to set its click handler to the same one as #id.
Update
Thank you for all the suggestions. The problem is that I do not know which function is currently handling the clicks. Keeping track of it would add state to an already complicated template-editing system.
jQuery's .click(function) method adds the function to a queue that is executed on the click event~
So actually pulling out a reference to the given function would probably be hairy-er than you expect.
As noted by others, it would be better to pass in a reference to the function; and then you already have the reference you need.
var clicky = function () { /* do stuff */ };
$('#id').click(clicky);
// Do other stuff with clicky
Update
If you really really need to get it out, try this:
jQuery._data(document.getElementById('id')).events.click[0].handler
Depending on your version of jQuery that may or may not work~ Try playing around with
jQuery._data(document.getElementById('id'))
and see what you get.
Got the idea from this section of the source:
https://github.com/jquery/jquery/blob/master/src/event.js#LC36
if you dont know the name of the function you can use
args.callee
https://developer.mozilla.org/en/JavaScript/Reference/Functions_and_function_scope/arguments/callee
function clickHandle(e){
if($(e.target) == $('#id')) {
$(newTarget).bind('click', clickHandle);
}
}
$('#id').bind('click',clickHandle);
I think this would be the most symantic way of going about it
I have a class that extends dijit.Dialog but only to set default functionality and buttons for my site. When clicking the dialog's cancel button the following code is run:
this.actionDialog.destroyRecursive();
this.actionDialog.destroy();
nb this.actionDialog = dijit.Dialog
Sometimes (not always) the following error gets thrown:
Uncaught TypeError: Cannot call method 'destroy' of undefined
DialogUnderlay.xd.js:8
Which causes following dialogs to incorrectly display. I am using 1.5 from Google API's. Am I missing something with the underlay code?
Error thrown after Ken's answer:
exception in animation handler for: onEnd
TypeError: Cannot read property 'style' of null
Both from dojo.xd.js:14. But the code still works properly.
I'm still not entirely sure what the problem is, other than for some reason dijit.DialogUnderlay code is getting confused. FWIW, this doesn't happen in Dojo 1.6.
While I was poking at some potential solutions, I seemed to accidentally find out that avoiding this problem is perhaps as easy as calling hide() on the dialog immediately before destroying it, e.g.:
this.actionDialog.hide();
this.actionDialog.destroyRecursive();
Alternatively, you might be interested in hiding the dialog, then destroying it once the hide animation finishes.
Here's how you can do it on Dojo 1.5 and earlier (tested 1.3+):
dlg.connect(dlg._fadeOut, 'onEnd', function() {
this.destroyRecursive();
});
dlg.hide();
In 1.6, the fadeOut animation is no longer exposed on the instance (granted, it was technically private earlier anyway), but onHide now triggers once the animation ends (whereas before it triggered as soon as it began). Unfortunately a setTimeout is needed to get around an error that occurs due to other code in the branch calling onHide, which assumes that something still exists on the instance which won't after we've destroyed it (see #12436).
dlg.connect(dlg, 'onHide', function() {
setTimeout(function() { dlg.destroyRecursive(); }, 0);
});
dlg.hide();
See it in action on JSFiddle: http://jsfiddle.net/3MNRu/1/ (See the initial version for the original error in the question)
The dialog.hide() method returns a Deferred, your code can be something more readable like this:
var dialog = this.actionDialog;
dialog.hide().then(function(){ dialog.destroyRecursive(); });
Be careful not to do this:
this.actionDialog.hide().then(function(){ this.actionDialog.destroyRecursive(); });
At the context of then this has another meaning!
You only need to call destroyRecursive()
The second destroy command is what is probably causing the error, and the error probably is causing the issues with other dialogs.
http://dojotoolkit.org/api/1.3/dijit/_Widget/destroyRecursive
destroyRecursive
Destroy this widget and it's descendants. This is the generic "destructor" function that all widget users should call to cleanly discard with a widget. Once a widget is destroyed, it's removed from the manager object.
I was getting the IE8 error : 'this.focusNode.form' is null or not an object. I found this was the result of the dialog.hide() returning a deferred. I wrote my own _closeDialog which eliminated the IE error.
_closeDialog : function(cntxt){
cntxt.popup.hide().then(
function(){
cntxt.popup.destroyRecursive(false);
cntxt.popup.destroy(false);
cntxt.destroyRecursive(false);
cntxt.destroy(false);
});
},