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shell: Show approprite cursors during move and resize grabs

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This patch expands the busy cursor mechanism so that it is possible for
the desktop-shell client to show the appropriate cursor during grabs.
This commit is contained in:
Ander Conselvan de Oliveira 2012-06-28 18:08:05 +03:00 committed by Kristian Høgsberg
parent 1fbda0e81d
commit b9d2a0fc0a
3 changed files with 138 additions and 59 deletions
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81
clients/desktop-shell.c
View file

@ -50,8 +50,10 @@ struct desktop {
struct task unlock_task;
struct wl_list outputs;
struct window *busy_window;
struct widget *busy_widget;
struct window *grab_window;
struct widget *grab_widget;
enum desktop_shell_cursor grab_cursor;
};
struct surface {
@ -742,9 +744,54 @@ desktop_shell_prepare_lock_surface(void *data,
}
}
static void
desktop_shell_grab_cursor(void *data,
struct desktop_shell *desktop_shell,
uint32_t cursor)
{
struct desktop *desktop = data;
switch (cursor) {
case DESKTOP_SHELL_CURSOR_BUSY:
desktop->grab_cursor = CURSOR_WATCH;
break;
case DESKTOP_SHELL_CURSOR_MOVE:
desktop->grab_cursor = CURSOR_DRAGGING;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_TOP:
desktop->grab_cursor = CURSOR_TOP;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_BOTTOM:
desktop->grab_cursor = CURSOR_BOTTOM;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_LEFT:
desktop->grab_cursor = CURSOR_LEFT;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_RIGHT:
desktop->grab_cursor = CURSOR_RIGHT;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_TOP_LEFT:
desktop->grab_cursor = CURSOR_TOP_LEFT;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_TOP_RIGHT:
desktop->grab_cursor = CURSOR_TOP_RIGHT;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_BOTTOM_LEFT:
desktop->grab_cursor = CURSOR_BOTTOM_LEFT;
break;
case DESKTOP_SHELL_CURSOR_RESIZE_BOTTOM_RIGHT:
desktop->grab_cursor = CURSOR_BOTTOM_RIGHT;
break;
case DESKTOP_SHELL_CURSOR_ARROW:
default:
desktop->grab_cursor = CURSOR_LEFT_PTR;
}
}
static const struct desktop_shell_listener listener = {
desktop_shell_configure,
desktop_shell_prepare_lock_surface
desktop_shell_prepare_lock_surface,
desktop_shell_grab_cursor
};
static struct background *
@ -765,29 +812,33 @@ background_create(struct desktop *desktop)
}
static int
busy_surface_enter_handler(struct widget *widget, struct input *input,
grab_surface_enter_handler(struct widget *widget, struct input *input,
float x, float y, void *data)
{
return CURSOR_WATCH;
struct desktop *desktop = data;
return desktop->grab_cursor;
}
static void
busy_surface_create(struct desktop *desktop)
grab_surface_create(struct desktop *desktop)
{
struct wl_surface *s;
desktop->busy_window = window_create(desktop->display);
s = window_get_wl_surface(desktop->busy_window);
desktop_shell_set_busy_surface(desktop->shell, s);
desktop->grab_window = window_create(desktop->display);
window_set_user_data(desktop->grab_window, desktop);
desktop->busy_widget =
window_add_widget(desktop->busy_window, desktop);
s = window_get_wl_surface(desktop->grab_window);
desktop_shell_set_grab_surface(desktop->shell, s);
desktop->grab_widget =
window_add_widget(desktop->grab_window, desktop);
/* We set the allocation to 1x1 at 0,0 so the fake enter event
* at 0,0 will go to this widget. */
widget_set_allocation(desktop->busy_widget, 0, 0, 1, 1);
widget_set_allocation(desktop->grab_widget, 0, 0, 1, 1);
widget_set_enter_handler(desktop->busy_widget,
busy_surface_enter_handler);
widget_set_enter_handler(desktop->grab_widget,
grab_surface_enter_handler);
}
static void
@ -887,7 +938,7 @@ int main(int argc, char *argv[])
output->output, surface);
}
busy_surface_create(&desktop);
grab_surface_create(&desktop);
config_file = config_file_path("weston.ini");
ret = parse_config_file(config_file,

37
protocol/desktop-shell.xml
View file

@ -23,7 +23,13 @@
<request name="unlock"/>
<request name="set_busy_surface">
<request name="set_grab_surface">
<description summary="set grab surface">
The surface set by this request will receive a fake
pointer.enter event during grabs at position 0, 0 and is
expected to set an appropriate cursor image as described by
the grab_cursor event sent just before the enter event.
</description>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
@ -45,6 +51,35 @@
desktop resume.
</description>
</event>
<event name="grab_cursor">
<description summary="tell client what cursor to show during a grab">
This event will be sent immediately before a fake enter event on the
grab surface.
</description>
<arg name="cursor" type="uint"/>
</event>
<enum name="cursor">
<entry name="none" value="0"/>
<entry name="resize_top" value="1"/>
<entry name="resize_bottom" value="2"/>
<entry name="arrow" value="3"/>
<entry name="resize_left" value="4"/>
<entry name="resize_top_left" value="5"/>
<entry name="resize_bottom_left" value="6"/>
<entry name="move" value="7"/>
<entry name="resize_right" value="8"/>
<entry name="resize_top_right" value="9"/>
<entry name="resize_bottom_right" value="10"/>
<entry name="busy" value="11"/>
</enum>
</interface>
<interface name="screensaver" version="1">

79
src/shell.c
View file

@ -78,7 +78,7 @@ struct desktop_shell {
struct weston_layer lock_layer;
struct wl_listener pointer_focus_listener;
struct weston_surface *busy_surface;
struct weston_surface *grab_surface;
struct {
struct weston_process process;
@ -198,6 +198,7 @@ struct shell_grab {
struct wl_pointer_grab grab;
struct shell_surface *shsurf;
struct wl_listener shsurf_destroy_listener;
struct wl_pointer *pointer;
};
struct weston_move_grab {
@ -249,23 +250,36 @@ destroy_shell_grab_shsurf(struct wl_listener *listener, void *data)
}
static void
shell_grab_init(struct shell_grab *grab,
const struct wl_pointer_grab_interface *interface,
struct shell_surface *shsurf)
shell_grab_start(struct shell_grab *grab,
const struct wl_pointer_grab_interface *interface,
struct shell_surface *shsurf,
struct wl_pointer *pointer,
enum desktop_shell_cursor cursor)
{
struct desktop_shell *shell = shsurf->shell;
grab->grab.interface = interface;
grab->shsurf = shsurf;
grab->shsurf_destroy_listener.notify = destroy_shell_grab_shsurf;
wl_signal_add(&shsurf->resource.destroy_signal,
&grab->shsurf_destroy_listener);
grab->pointer = pointer;
grab->grab.focus = &shsurf->surface->surface;
wl_pointer_start_grab(pointer, &grab->grab);
desktop_shell_send_grab_cursor(shell->child.desktop_shell, cursor);
wl_pointer_set_focus(pointer, &shell->grab_surface->surface,
wl_fixed_from_int(0), wl_fixed_from_int(0));
}
static void
shell_grab_finish(struct shell_grab *grab)
shell_grab_end(struct shell_grab *grab)
{
if (grab->shsurf)
wl_list_remove(&grab->shsurf_destroy_listener.link);
wl_pointer_end_grab(grab->pointer);
}
static void
@ -795,7 +809,7 @@ move_grab_button(struct wl_pointer_grab *grab,
if (pointer->button_count == 0 &&
state == WL_POINTER_BUTTON_STATE_RELEASED) {
shell_grab_finish(shell_grab);
shell_grab_end(shell_grab);
wl_pointer_end_grab(pointer);
free(grab);
}
@ -815,7 +829,7 @@ busy_cursor_grab_focus(struct wl_pointer_grab *base,
struct wl_pointer *pointer = base->pointer;
if (grab->grab.focus != surface) {
shell_grab_finish(grab);
shell_grab_end(grab);
wl_pointer_end_grab(pointer);
free(grab);
}
@ -843,16 +857,13 @@ static void
set_busy_cursor(struct shell_surface *shsurf, struct wl_pointer *pointer)
{
struct shell_grab *grab;
struct desktop_shell *shell = shsurf->shell;
grab = malloc(sizeof *grab);
if (!grab)
return;
shell_grab_init(grab, &busy_cursor_grab_interface, shsurf);
grab->grab.focus = &shsurf->surface->surface;
wl_pointer_start_grab(pointer, &grab->grab);
wl_pointer_set_focus(pointer, &shell->busy_surface->surface, 0, 0);
shell_grab_start(grab, &busy_cursor_grab_interface, shsurf, pointer,
DESKTOP_SHELL_CURSOR_BUSY);
}
static void
@ -861,8 +872,7 @@ end_busy_cursor(struct shell_surface *shsurf, struct wl_pointer *pointer)
struct shell_grab *grab = (struct shell_grab *) pointer->grab;
if (grab->grab.interface == &busy_cursor_grab_interface) {
shell_grab_finish(grab);
wl_pointer_end_grab(pointer);
shell_grab_end(grab);
free(grab);
}
}
@ -966,7 +976,7 @@ shell_surface_pong(struct wl_client *client, struct wl_resource *resource,
wl_list_for_each(seat, &ec->seat_list, link) {
pointer = seat->seat.pointer;
if (pointer->focus ==
&shell->busy_surface->surface &&
&shell->grab_surface->surface &&
pointer->current ==
&shsurf->surface->surface)
end_busy_cursor(shsurf, pointer);
@ -1008,18 +1018,13 @@ surface_move(struct shell_surface *shsurf, struct weston_seat *ws)
if (!move)
return -1;
shell_grab_init(&move->base, &move_grab_interface, shsurf);
move->dx = wl_fixed_from_double(shsurf->surface->geometry.x) -
ws->seat.pointer->grab_x;
move->dy = wl_fixed_from_double(shsurf->surface->geometry.y) -
ws->seat.pointer->grab_y;
wl_pointer_start_grab(ws->seat.pointer, &move->base.grab);
wl_pointer_set_focus(ws->seat.pointer, NULL,
wl_fixed_from_int(0),
wl_fixed_from_int(0));
shell_grab_start(&move->base, &move_grab_interface, shsurf,
ws->seat.pointer, DESKTOP_SHELL_CURSOR_MOVE);
return 0;
}
@ -1108,8 +1113,7 @@ resize_grab_button(struct wl_pointer_grab *grab,
if (pointer->button_count == 0 &&
state == WL_POINTER_BUTTON_STATE_RELEASED) {
shell_grab_finish(&resize->base);
wl_pointer_end_grab(pointer);
shell_grab_end(&resize->base);
free(grab);
}
}
@ -1137,17 +1141,12 @@ surface_resize(struct shell_surface *shsurf,
if (!resize)
return -1;
shell_grab_init(&resize->base, &resize_grab_interface, shsurf);
resize->edges = edges;
resize->width = shsurf->surface->geometry.width;
resize->height = shsurf->surface->geometry.height;
wl_pointer_start_grab(ws->seat.pointer, &resize->base.grab);
wl_pointer_set_focus(ws->seat.pointer, NULL,
wl_fixed_from_int(0),
wl_fixed_from_int(0));
shell_grab_start(&resize->base, &resize_grab_interface, shsurf,
ws->seat.pointer, edges);
return 0;
}
@ -2009,13 +2008,13 @@ desktop_shell_unlock(struct wl_client *client,
}
static void
desktop_shell_set_busy_surface(struct wl_client *client,
desktop_shell_set_grab_surface(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *surface_resource)
{
struct desktop_shell *shell = resource->data;
shell->busy_surface = surface_resource->data;
shell->grab_surface = surface_resource->data;
}
static const struct desktop_shell_interface desktop_shell_implementation = {
@ -2023,7 +2022,7 @@ static const struct desktop_shell_interface desktop_shell_implementation = {
desktop_shell_set_panel,
desktop_shell_set_lock_surface,
desktop_shell_unlock,
desktop_shell_set_busy_surface
desktop_shell_set_grab_surface
};
static enum shell_surface_type
@ -2266,8 +2265,7 @@ rotate_grab_button(struct wl_pointer_grab *grab,
if (shsurf)
weston_matrix_multiply(&shsurf->rotation.rotation,
&rotate->rotation);
shell_grab_finish(&rotate->base);
wl_pointer_end_grab(pointer);
shell_grab_end(&rotate->base);
free(rotate);
}
}
@ -2300,15 +2298,11 @@ rotate_binding(struct wl_seat *seat, uint32_t time, uint32_t button,
if (!rotate)
return;
shell_grab_init(&rotate->base, &rotate_grab_interface, surface);
weston_surface_to_global_float(surface->surface,
surface->surface->geometry.width / 2,
surface->surface->geometry.height / 2,
&rotate->center.x, &rotate->center.y);
wl_pointer_start_grab(seat->pointer, &rotate->base.grab);
dx = wl_fixed_to_double(seat->pointer->x) - rotate->center.x;
dy = wl_fixed_to_double(seat->pointer->y) - rotate->center.y;
r = sqrtf(dx * dx + dy * dy);
@ -2332,9 +2326,8 @@ rotate_binding(struct wl_seat *seat, uint32_t time, uint32_t button,
weston_matrix_init(&rotate->rotation);
}
wl_pointer_set_focus(seat->pointer, NULL,
wl_fixed_from_int(0),
wl_fixed_from_int(0));
shell_grab_start(&rotate->base, &rotate_grab_interface, surface,
seat->pointer, DESKTOP_SHELL_CURSOR_ARROW);
}
static void