Ypu also need to have the modal setup the focus correct in the first input(or the one that makes sense), usually GUI libraries have a property for tab index th

Ypu also need to have the modal setup the focus correct in the first input(or the one that makes sense), usually GUI libraries have a property for tab index that specify how focus changes when you press Tab, bootstrap seems to not properly setup the focus and I had to write code to fix that. It is not impossible to write such code but I am sure the code you will write in 10 minutes will not be good enough, my point is this modal feature should be native and not have people re-invent it, Also what if you want to allow resize or move, then you get again more and more code that is reinvented each time. IMHO is the same issue as with the dropdown/select , when you need a dropdown that has icons or something that the native one is not good enough it is easy to write one yourself, soem divs, some events but this 10 minutes dropdown will have missing feature or issues, like corner cases when the popup thing goes outside the screen or conflicts with something else,or the thing that opens contains 6 and half entries and if you want to look good you need to put more work into it, then if you want support for arrow keys more work, or if you want the feature where the user presses the first letters and selection jumps down to the correct item even more code, my point is basic implementations are fast, good enough implementation like you have in Qt,Flex, WPF is a lot more work and we do not have a standard way of doing it, and the developer needs to research what library works with the current stack he uses