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Free button_state.mask after XIQueryPointer()

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This function allocates the button mask, so free it after
use, or right before the next XIQueryPointer() call, as done
in gdk_x11_device_xi2_window_at_position().
This commit is contained in:
Carlos Garnacho 2011-01-23 23:19:30 +01:00
parent b2b73a349e
commit 0cc2f93d5c
1 changed files with 13 additions and 1 deletions
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14
gdk/x11/gdkdevice-xi2.c
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@ -362,6 +362,8 @@ gdk_x11_device_xi2_query_state (GdkDevice *device,
if (mask)
*mask = _gdk_x11_device_xi2_translate_state (&mod_state, &button_state);
g_free (button_state.mask);
return TRUE;
}
@ -449,7 +451,7 @@ gdk_x11_device_xi2_window_at_position (GdkDevice *device,
GdkWindow *window;
Window xwindow, root, child, last = None;
gdouble xroot_x, xroot_y, xwin_x, xwin_y;
XIButtonState button_state;
XIButtonState button_state = { 0 };
XIModifierState mod_state;
XIGroupState group_state;
@ -501,6 +503,10 @@ gdk_x11_device_xi2_window_at_position (GdkDevice *device,
{
window = GDK_WINDOW (list->data);
xwindow = GDK_WINDOW_XID (window);
/* Free previous button mask, if any */
g_free (button_state.mask);
gdk_x11_display_error_trap_push (display);
XIQueryPointer (xdisplay,
device_xi2->device_id,
@ -525,6 +531,8 @@ gdk_x11_device_xi2_window_at_position (GdkDevice *device,
XSetWindowAttributes attributes;
Window w;
g_free (button_state.mask);
w = XCreateWindow (xdisplay, xwindow, (int)xwin_x, (int)xwin_y, 1, 1, 0,
CopyFromParent, InputOnly, CopyFromParent,
0, &attributes);
@ -558,6 +566,8 @@ gdk_x11_device_xi2_window_at_position (GdkDevice *device,
while (xwindow)
{
last = xwindow;
g_free (button_state.mask);
gdk_x11_display_error_trap_push (display);
XIQueryPointer (xdisplay,
device_xi2->device_id,
@ -593,6 +603,8 @@ gdk_x11_device_xi2_window_at_position (GdkDevice *device,
if (mask)
*mask = _gdk_x11_device_xi2_translate_state (&mod_state, &button_state);
g_free (button_state.mask);
return window;
}