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  2. DOM event - Wikipedia

    en.wikipedia.org/wiki/DOM_event

    This event is fired when the mouse leaves an element while a drag is occurring. Yes No dragover ondragover This event is fired as the mouse is moved over an element when a drag is occurring. Yes Yes drop ondrop The drop event is fired on the element where the drop occurs at the end of the drag operation. Yes Yes dragend ondragend

  3. Event-driven programming - Wikipedia

    en.wikipedia.org/wiki/Event-driven_programming

    The actual logic is contained in event-handler routines. These routines handle the events to which the main program will respond. For example, a single left-button mouse-click on a command button in a GUI program may trigger a routine that will open another window, save data to a database or exit the application.

  4. Twisted (software) - Wikipedia

    en.wikipedia.org/wiki/Twisted_(software)

    Twisted can integrate with foreign event loops, such as those of GTK+, Qt and Cocoa (through PyObjC). This allows using Twisted as the network layer in graphical user interface (GUI) programs, using all of its libraries without adding a thread-per-socket overhead, as using Python's native library would. A full-fledged web server can be ...

  5. Dynamic HTML - Wikipedia

    en.wikipedia.org/wiki/Dynamic_HTML

    This means you can change inline styles on individual elements and change style rules using simple JavaScript programming. Inline styles are CSS style assignments that have been applied to an element using the style attribute.

  6. Mouseover - Wikipedia

    en.wikipedia.org/wiki/Mouseover

    By using :hover, the appearance of these elements change dynamically. This creates a more engaging and interactive user experience. For example, :hover can be used to change the background color of a button when a user hovers over the button. Another example is to add a shadow to an image when it's hovered over.

  7. Wikipedia:User scripts/Guide - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:User_scripts/Guide

    We will be writing a user script by modifying your common.js. For the purpose of this tutorial, we will write a simple version of the Quick wikify module, which adds the {{Wikify}} maintenance template to the top of an article when you click a link called "Wikify" in the "More" menu.

  8. Observer pattern - Wikipedia

    en.wikipedia.org/wiki/Observer_pattern

    Below is an example written in Java that takes keyboard input and handles each input line as an event. When a string is supplied from System.in , the method notifyObservers() is then called in order to notify all observers of the event's occurrence, in the form of an invocation of their update methods.

  9. Tooltip - Wikipedia

    en.wikipedia.org/wiki/Tooltip

    A web browser tooltip displayed for hyperlink to HTML, showing what the abbreviation stands for.. The tooltip, also known as infotip or hint, is a common graphical user interface (GUI) element in which, when hovering over a screen element or component, a text box displays information about that element, such as a description of a button's function, what an abbreviation stands for, or the exact ...