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wayland: Implement wl_tablet_tool.set_cursor

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Each tool has its own MetaCursorRenderer instance, which is created/destroyed
upon proximity, and possibly updated through focus and set_cursor calls in
between.
This commit is contained in:
Carlos Garnacho 2015-10-28 12:55:58 +01:00
parent 521e934cb9
commit ec53b5562d
2 changed files with 112 additions and 0 deletions
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108
src/wayland/meta-wayland-tablet-tool.c
View File

@ -31,6 +31,7 @@
#include <wayland-server.h>
#include "tablet-unstable-v1-server-protocol.h"
#include "meta-wayland-private.h"
#include "meta-wayland-surface-role-cursor.h"
#include "meta-surface-actor-wayland.h"
#include "meta-wayland-tablet.h"
#include "meta-wayland-tablet-seat.h"
@ -76,6 +77,54 @@ move_resources_for_client (struct wl_list *destination,
}
}
static void
meta_wayland_tablet_tool_update_cursor_surface (MetaWaylandTabletTool *tool)
{
MetaCursorSprite *cursor = NULL;
if (tool->cursor_renderer == NULL)
return;
if (tool->current && tool->current_tablet)
{
if (tool->cursor_surface &&
meta_wayland_surface_get_buffer (tool->cursor_surface))
{
MetaWaylandSurfaceRoleCursor *cursor_role =
META_WAYLAND_SURFACE_ROLE_CURSOR (tool->cursor_surface->role);
cursor = meta_wayland_surface_role_cursor_get_sprite (cursor_role);
}
else
cursor = NULL;
}
else if (tool->current_tablet)
cursor = meta_cursor_sprite_from_theme (META_CURSOR_CROSSHAIR);
else
cursor = NULL;
meta_cursor_renderer_set_cursor (tool->cursor_renderer, cursor);
}
static void
meta_wayland_tablet_tool_set_cursor_surface (MetaWaylandTabletTool *tool,
MetaWaylandSurface *surface)
{
if (tool->cursor_surface == surface)
return;
if (tool->cursor_surface)
wl_list_remove (&tool->cursor_surface_destroy_listener.link);
tool->cursor_surface = surface;
if (tool->cursor_surface)
wl_resource_add_destroy_listener (tool->cursor_surface->resource,
&tool->cursor_surface_destroy_listener);
meta_wayland_tablet_tool_update_cursor_surface (tool);
}
static uint32_t
input_device_get_capabilities (ClutterInputDevice *device)
{
@ -207,6 +256,8 @@ meta_wayland_tablet_tool_set_focus (MetaWaylandTabletTool *tool,
broadcast_frame (tool, event);
}
}
meta_wayland_tablet_tool_update_cursor_surface (tool);
}
static void
@ -219,6 +270,16 @@ tablet_tool_handle_focus_surface_destroy (struct wl_listener *listener,
meta_wayland_tablet_tool_set_focus (tool, NULL, NULL);
}
static void
tablet_tool_handle_cursor_surface_destroy (struct wl_listener *listener,
void *data)
{
MetaWaylandTabletTool *tool;
tool = wl_container_of (listener, tool, cursor_surface_destroy_listener);
meta_wayland_tablet_tool_set_cursor_surface (tool, NULL);
}
MetaWaylandTabletTool *
meta_wayland_tablet_tool_new (MetaWaylandTabletSeat *seat,
ClutterInputDevice *device,
@ -234,6 +295,7 @@ meta_wayland_tablet_tool_new (MetaWaylandTabletSeat *seat,
wl_list_init (&tool->focus_resource_list);
tool->focus_surface_destroy_listener.notify = tablet_tool_handle_focus_surface_destroy;
tool->cursor_surface_destroy_listener.notify = tablet_tool_handle_cursor_surface_destroy;
return tool;
}
@ -244,6 +306,8 @@ meta_wayland_tablet_tool_free (MetaWaylandTabletTool *tool)
struct wl_resource *resource, *next;
meta_wayland_tablet_tool_set_focus (tool, NULL, NULL);
meta_wayland_tablet_tool_set_cursor_surface (tool, NULL);
g_clear_object (&tool->cursor_renderer);
wl_resource_for_each_safe (resource, next, &tool->resource_list)
{
@ -261,6 +325,42 @@ tool_set_cursor (struct wl_client *client,
int32_t hotspot_x,
int32_t hotspot_y)
{
MetaWaylandTabletTool *tool = wl_resource_get_user_data (resource);
MetaWaylandSurface *surface;
surface = (surface_resource ? wl_resource_get_user_data (surface_resource) : NULL);
if (tool->focus_surface == NULL)
return;
if (tool->cursor_renderer == NULL)
return;
if (wl_resource_get_client (tool->focus_surface->resource) != client)
return;
if (tool->proximity_serial - serial > G_MAXUINT32 / 2)
return;
if (surface &&
!meta_wayland_surface_assign_role (surface,
META_TYPE_WAYLAND_SURFACE_ROLE_CURSOR))
{
wl_resource_post_error (resource, WL_POINTER_ERROR_ROLE,
"wl_surface@%d already has a different role",
wl_resource_get_id (surface_resource));
return;
}
if (surface)
{
MetaWaylandSurfaceRoleCursor *cursor_role;
cursor_role = META_WAYLAND_SURFACE_ROLE_CURSOR (surface->role);
meta_wayland_surface_role_cursor_set_renderer (cursor_role,
tool->cursor_renderer);
meta_wayland_surface_role_cursor_set_hotspot (cursor_role,
hotspot_x, hotspot_y);
}
meta_wayland_tablet_tool_set_cursor_surface (tool, surface);
}
static void
@ -385,6 +485,7 @@ repick_for_event (MetaWaylandTabletTool *tool,
tool->current = NULL;
sync_focus_surface (tool, for_event);
meta_wayland_tablet_tool_update_cursor_surface (tool);
}
static void
@ -635,10 +736,17 @@ meta_wayland_tablet_tool_update (MetaWaylandTabletTool *tool,
repick_for_event (tool, event);
break;
case CLUTTER_PROXIMITY_IN:
if (!tool->cursor_renderer)
tool->cursor_renderer = meta_cursor_renderer_new ();
tool->current_tablet =
meta_wayland_tablet_seat_lookup_tablet (tool->seat,
clutter_event_get_source_device (event));
break;
case CLUTTER_PROXIMITY_OUT:
tool->current_tablet = NULL;
meta_wayland_tablet_tool_update_cursor_surface (tool);
g_clear_object (&tool->cursor_renderer);
break;
default:
break;
}

4
src/wayland/meta-wayland-tablet-tool.h
View File

@ -40,6 +40,10 @@ struct _MetaWaylandTabletTool
MetaWaylandSurface *focus_surface;
struct wl_listener focus_surface_destroy_listener;
MetaWaylandSurface *cursor_surface;
struct wl_listener cursor_surface_destroy_listener;
MetaCursorRenderer *cursor_renderer;
MetaWaylandSurface *current;
guint32 pressed_buttons;