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Detect Click into Iframe using JavaScript
I understand that it is not possible to tell what the user is doing inside an iframe if it is cross domain. What I would like to do is track if the user clicked at all in the iframe . I imagine a scenario where there is an invisible div on top of the iframe and the the div will just then ...
Can Go compiler be installed on Windows?
...n looking on golang.org for a Windows compiler, but I can't seem to find it. I can only see Linux and OS X compilers. Does anyone know if Go programming can be done on Windows, or is it something that Google hasn't implemented yet?
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Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
... (sharedInstance == nil) {
sharedInstance = [[MyClass alloc] init];
}
}
return sharedInstance;
}
The benefit of dispatch_once() over this is that it's faster. It's also semantically cleaner, because it also protects you from multiple threads doing alloc init of your sha...
Fade/dissolve when changing UIImageView's image
Rather than creating two UIImageViews , it seems logical to simply change the image of one view. If I do that, is there anyway of having a fade/cross dissolve between the two images rather than an instant switch?
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“Invalid form control” only in Google Chrome
...below works well in Safari but in Chrome and Firefox the form will not submit. Chrome console logs the error An invalid form control with name='' is not focusable . Any ideas?
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Why can I access private variables in the copy constructor?
I have learned that I can never access a private variable, only with a get-function in the class. But then why can I access it in the copy constructor?
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Data structure: insert, remove, contains, get random element, all at O(1)
...e keys are the elements in the data structure, and the values are their positions in the array.
insert(value): append the value to array and let i be its index in A. Set H[value]=i.
remove(value): We are going to replace the cell that contains value in A with the last element in A. let d be the la...
How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
I have an app that uses 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them.
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Pushing read-only GUI properties back into ViewModel
I want to write a ViewModel that always knows the current state of some read-only dependency properties from the View.
6 An...
What's the difference between session.persist() and session.save() in Hibernate?
...
From this forum post
persist() is well defined. It makes a
transient instance persistent.
However, it doesn't guarantee that the
identifier value will be assigned to
the persistent instance immediately,
the assignment might happen at flush
time. The spec doesn'...