gecko-dev/widget/public/nsIEventSink.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* The Original Code is mozilla.org code.
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#include "nsISupports.idl"
/* THIS IS A PUBLIC EMBEDDING API */
/**
* The nsIEventSink is implemented internally by Gecko as the conduit
* through which native events travel into Gecko. You obtain an
* event sink by QI'ing the top-level nsIWidget, usually a window.
*
* @status UNDER_REVIEW
*/
[uuid(c0d3a7c8-1dd1-11b2-8903-adcd22d004ab)]
interface nsIEventSink : nsISupports
{
/**
* Entry point for native events into Gecko.
*
* @return <code>PR_TRUE</code> if event was handled
* <code>PR_FALSE</code> if not handled
*
* On Mac, <code>anEvent</code> is a native <code>EventRecord*</code>.
*/
boolean dispatchEvent ( in voidPtr anEvent ) ;
/**
* Alerts gecko of a drag event.
*
* @param aMessage the message parameter for a Gecko NS_DRAGDROP_EVENT (See nsGUIEvent.h for list).
* @param aMouseGlobalX x coordinate of mouse, in global coordinates
* @param aMouseGlobalY y coordinate of mouse, in global coordinates
* @param aKeyModifiers a native bitfield of which modifier keys are currently pressed
*
* @return <code>PR_TRUE</code> if event was handled
* <code>PR_FALSE</code> if not handled
*/
boolean dragEvent ( in unsigned long aMessage, in short aMouseGlobalX, in short aMouseGlobalY,
in unsigned short aKeyModifiers ) ;
/**
* Tell gecko to scroll, usually in response to a mouse-wheel
*
* @param aVertical <code>PR_TRUE</code> if scrolling veritcally, <code>PR_FALSE</code> if horizontal
* @param aNumLines the number of lines to scroll, positive for down, negative for up
* @param aMouseLocalX the x coordinate of the mouse in window (local) coordinates
* @param aMouseLocalY the y coordinate of the mouse in window (local) coordinates
*/
boolean scroll ( in boolean aVertical, in short aNumLines, in short aMouseLocalX,
in short aMouseLocalY ) ;
/**
* Perform any idle processing (handle timers, set the cursor, etc)
*/
void Idle ( ) ;
};