08ce2e07d3
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9299 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
//
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// "$Id$"
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//
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// Grab/release code for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#include <config.h>
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#include <FL/Fl.H>
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#include <FL/x.H>
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////////////////////////////////////////////////////////////////
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// "Grab" is done while menu systems are up. This has several effects:
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// Events are all sent to the "grab window", which does not even
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// have to be displayed (and in the case of Fl_Menu.cxx it isn't).
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// The system is also told to "grab" events and send them to this app.
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// This also modifies how Fl_Window::show() works, on X it turns on
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// override_redirect, it does similar things on WIN32.
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extern void fl_fix_focus(); // in Fl.cxx
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#ifdef WIN32
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// We have to keep track of whether we have captured the mouse, since
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// MSWindows shows little respect for this... Grep for fl_capture to
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// see where and how this is used.
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extern HWND fl_capture;
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#endif
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#ifdef __APPLE__
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extern void *fl_capture;
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#endif
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void Fl::grab(Fl_Window* win) {
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#if USE_X11
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Fl_Window *fullscreen_win = NULL;
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for (Fl_Window *W = Fl::first_window(); W; W = Fl::next_window(W)) {
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if (W->fullscreen_active()) {
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fullscreen_win = W;
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break;
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}
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}
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#endif
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if (win) {
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if (!grab_) {
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#ifdef WIN32
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SetActiveWindow(fl_capture = fl_xid(first_window()));
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SetCapture(fl_capture);
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#elif defined(__APPLE__)
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fl_capture = Fl_X::i(first_window())->xid;
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Fl_X::i(first_window())->set_key_window();
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#else
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Window xid = fullscreen_win ? fl_xid(fullscreen_win) : fl_xid(first_window());
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XGrabPointer(fl_display,
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xid,
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1,
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ButtonPressMask|ButtonReleaseMask|
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ButtonMotionMask|PointerMotionMask,
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GrabModeAsync,
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GrabModeAsync,
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None,
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0,
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fl_event_time);
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XGrabKeyboard(fl_display,
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xid,
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1,
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GrabModeAsync,
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GrabModeAsync,
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fl_event_time);
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#endif
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}
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grab_ = win;
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} else {
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if (grab_) {
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#ifdef WIN32
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fl_capture = 0;
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ReleaseCapture();
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#elif defined(__APPLE__)
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fl_capture = 0;
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#else
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// We must keep the grab in the non-EWMH fullscreen case
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if (!fullscreen_win || Fl_X::ewmh_supported()) {
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XUngrabKeyboard(fl_display, fl_event_time);
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}
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XUngrabPointer(fl_display, fl_event_time);
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// this flush is done in case the picked menu item goes into
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// an infinite loop, so we don't leave the X server locked up:
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XFlush(fl_display);
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#endif
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grab_ = 0;
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fl_fix_focus();
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}
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}
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}
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//
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// End of "$Id$".
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//
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