mirror of
https://github.com/netsurf-browser/netsurf
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99c47eb99b
This change should handle the situation where a PointerEntering event is received without a corresponding PointerLeaving event, which appears to be caused by some third-party OS addons. This could cause unexpected consequences, so all such terminations are currently logged.
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
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* Copyright 2013 Stephen Fryatt <stevef@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file mouse.h
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* Mouse dragging and tracking support (interface).
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*/
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#ifndef _NETSURF_RISCOS_MOUSE_H_
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#define _NETSURF_RISCOS_MOUSE_H_
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/**
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* Process Null polls for any drags and mouse trackers that are currently
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* active.
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*/
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void ro_mouse_poll(void);
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/**
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* Start a drag, providing a function to be called when the Wimp_DragEnd event
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* is received and optionally a tracking function to be called on null polls
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* in between times.
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*
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* \param *drag_end Callback for when the drag terminates, or NULL for none.
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* \param *drag_track Callback for mouse tracking during the drag, or NULL for
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* none.
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* \param *drag_cancel Callback for cancelling the drag, or NULL if the drag
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* can't be cancelled.
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* \param *data Data to be passed to the callback functions, or NULL.
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*/
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void ro_mouse_drag_start(void (*drag_end)(wimp_dragged *dragged, void *data),
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void (*drag_track)(wimp_pointer *pointer, void *data),
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void (*drag_cancel)(void *data), void *data);
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/**
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* Process Wimp_DragEnd events by passing the details on to any registered
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* event handler.
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*
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* \param *dragged The Wimp_DragEnd data block.
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*/
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void ro_mouse_drag_end(wimp_dragged *dragged);
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/**
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* Start tracking the mouse in a window, providing a function to be called on
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* null polls and optionally one to be called when it leaves the window.
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*
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* \param *poll_end Callback for when the pointer leaves the window, or
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* NULL for none. Claimants can receive *leaving==NULL if
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* a new tracker is started before a PointerLeaving event
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* is received.
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* \param *poll_track Callback for mouse tracking while the pointer remains
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* in the window, or NULL for none.
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* \param *data Data to be passed to the callback functions, or NULL.
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*/
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void ro_mouse_track_start(void (*poll_end)(wimp_leaving *leaving, void *data),
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void (*poll_track)(wimp_pointer *pointer, void *data),
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void *data);
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/**
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* Process Wimp_PointerLeaving events by terminating an active mouse track and
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* passing the details on to any registered event handler.
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*
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* \param *leaving The Wimp_PointerLeaving data block.
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*/
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void ro_mouse_pointer_leaving_window(wimp_leaving *leaving);
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/**
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* Kill any tracking events if the data pointers match the supplied pointer.
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*
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* \param *data The data of the client to be killed.
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*/
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void ro_mouse_kill(void *data);
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/**
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* Return the desired polling interval to allow the mouse tracking to be
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* carried out.
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*
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* \return Desired poll interval (0 for none required).
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*/
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os_t ro_mouse_poll_interval(void);
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#endif
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