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92375c75f8
This is inspired by 98892391d7 where the usage of
`g_signal_handler_disconnect()` without resetting the corresponding
handler id later resulted in a bug. Using `g_clear_signal_handler()`
makes sure we avoid similar bugs and is almost always the better
alternative. We use it for new code, let's clean up the old code to
also use it.
A further benefit is that it can get called even if the passed id is
0, allowing us to remove a lot of now unnessecary checks, and the fact
that `g_clear_signal_handler()` checks for the right type size, forcing us
to clean up all places where we used `guint` instead of `gulong`.
No functional changes intended here and all changes should be trivial,
thus bundled in one big commit.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/940
92 lines
3.6 KiB
C
92 lines
3.6 KiB
C
/*
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* Wayland Support
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*
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* Copyright (C) 2015 Red Hat
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#ifndef META_WAYLAND_TABLET_TOOL_H
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#define META_WAYLAND_TABLET_TOOL_H
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#include <glib.h>
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#include <wayland-server.h>
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#include "backends/meta-cursor-renderer.h"
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#include "backends/meta-cursor-sprite-xcursor.h"
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#include "wayland/meta-wayland-types.h"
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struct _MetaWaylandTabletTool
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{
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MetaWaylandTabletSeat *seat;
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ClutterInputDevice *device;
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ClutterInputDeviceTool *device_tool;
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struct wl_list resource_list;
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struct wl_list focus_resource_list;
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MetaWaylandSurface *focus_surface;
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struct wl_listener focus_surface_destroy_listener;
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MetaWaylandSurface *cursor_surface;
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struct wl_listener cursor_surface_destroy_listener;
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MetaCursorRenderer *cursor_renderer;
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MetaCursorSpriteXcursor *default_sprite;
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gulong prepare_at_signal_id;
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MetaWaylandSurface *current;
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guint32 pressed_buttons;
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guint32 button_count;
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guint32 proximity_serial;
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guint32 down_serial;
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guint32 button_serial;
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float grab_x, grab_y;
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MetaWaylandTablet *current_tablet;
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};
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MetaWaylandTabletTool * meta_wayland_tablet_tool_new (MetaWaylandTabletSeat *seat,
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ClutterInputDevice *device,
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ClutterInputDeviceTool *device_tool);
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void meta_wayland_tablet_tool_free (MetaWaylandTabletTool *tool);
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struct wl_resource *
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meta_wayland_tablet_tool_create_new_resource (MetaWaylandTabletTool *tool,
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struct wl_client *client,
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struct wl_resource *seat_resource,
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uint32_t id);
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struct wl_resource *
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meta_wayland_tablet_tool_lookup_resource (MetaWaylandTabletTool *tool,
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struct wl_client *client);
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void meta_wayland_tablet_tool_update (MetaWaylandTabletTool *tool,
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const ClutterEvent *event);
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gboolean meta_wayland_tablet_tool_handle_event (MetaWaylandTabletTool *tool,
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const ClutterEvent *event);
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void meta_wayland_tablet_tool_set_cursor_position (MetaWaylandTabletTool *tool,
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float new_x,
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float new_y);
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gboolean meta_wayland_tablet_tool_can_grab_surface (MetaWaylandTabletTool *tool,
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MetaWaylandSurface *surface,
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uint32_t serial);
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gboolean meta_wayland_tablet_tool_can_popup (MetaWaylandTabletTool *tool,
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uint32_t serial);
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#endif /* META_WAYLAND_TABLET_TOOL_H */
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