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Implement simple touch support for rootston

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This commit is contained in:
Drew DeVault 2017-10-20 23:19:41 -04:00
parent 59fa18fbc9
commit 1782d5e7b7
5 changed files with 113 additions and 10 deletions
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22
include/rootston/input.h
View file

@ -24,18 +24,12 @@ struct roots_keyboard {
struct roots_pointer {
struct roots_input *input;
struct wlr_input_device *device;
// We don't listen to any pointer events directly - they go through
// wlr_cursor
struct wl_list link;
};
struct roots_touch {
struct roots_input *input;
struct wlr_input_device *device;
struct wl_listener down;
struct wl_listener up;
struct wl_listener motion;
struct wl_listener cancel;
struct wl_list link;
};
@ -70,6 +64,13 @@ struct roots_input_event {
struct wlr_input_device *device;
};
struct roots_touch_point {
struct roots_touch *device;
int32_t slot;
double x, y;
struct wl_list link;
};
struct roots_input {
struct roots_config *config;
struct roots_server *server;
@ -104,9 +105,16 @@ struct roots_input {
struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button;
struct wl_listener cursor_axis;
struct wl_listener cursor_touch_down;
struct wl_listener cursor_touch_up;
struct wl_listener cursor_touch_motion;
struct wl_listener cursor_tool_axis;
struct wl_listener cursor_tool_tip;
struct wl_list touch_points;
struct wl_listener pointer_grab_end;
struct wl_listener request_set_cursor;
@ -120,6 +128,8 @@ void pointer_add(struct wlr_input_device *device, struct roots_input *input);
void pointer_remove(struct wlr_input_device *device, struct roots_input *input);
void keyboard_add(struct wlr_input_device *device, struct roots_input *input);
void keyboard_remove(struct wlr_input_device *device, struct roots_input *input);
void touch_add(struct wlr_input_device *device, struct roots_input *input);
void touch_remove(struct wlr_input_device *device, struct roots_input *input);
void tablet_tool_add(struct wlr_input_device *device, struct roots_input *input);
void tablet_tool_remove(struct wlr_input_device *device, struct roots_input *input);

70
rootston/cursor.c
View file

@ -1,4 +1,5 @@
#define _XOPEN_SOURCE 700
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
@ -82,8 +83,8 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
double sx, sy;
switch (input->mode) {
case ROOTS_CURSOR_PASSTHROUGH:
view = view_at(desktop, input->cursor->x, input->cursor->y, &surface,
&sx, &sy);
view = view_at(desktop, input->cursor->x, input->cursor->y,
&surface, &sx, &sy);
bool set_compositor_cursor = !view && input->cursor_client;
if (view) {
struct wl_client *view_client =
@ -286,6 +287,56 @@ static void handle_cursor_button(struct wl_listener *listener, void *data) {
(uint32_t)(event->time_usec / 1000), event->button, event->state);
}
static void handle_touch_down(struct wl_listener *listener, void *data) {
struct wlr_event_touch_down *event = data;
struct roots_input *input =
wl_container_of(listener, input, cursor_touch_down);
struct roots_touch_point *point =
calloc(1, sizeof(struct roots_touch_point));
point->device = event->device->data;
point->slot = event->slot;
point->x = event->x_mm / event->width_mm;
point->y = event->y_mm / event->height_mm;
wlr_cursor_warp_absolute(input->cursor, event->device, point->x, point->y);
cursor_update_position(input, (uint32_t)(event->time_usec / 1000));
wl_list_insert(&input->touch_points, &point->link);
do_cursor_button_press(input, input->cursor, event->device,
(uint32_t)(event->time_usec / 1000), BTN_LEFT, 1);
}
static void handle_touch_up(struct wl_listener *listener, void *data) {
struct wlr_event_touch_up *event = data;
struct roots_input *input =
wl_container_of(listener, input, cursor_touch_up);
struct roots_touch_point *point;
wl_list_for_each(point, &input->touch_points, link) {
if (point->slot == event->slot) {
wl_list_remove(&point->link);
break;
}
}
do_cursor_button_press(input, input->cursor, event->device,
(uint32_t)(event->time_usec / 1000), BTN_LEFT, 0);
}
static void handle_touch_motion(struct wl_listener *listener, void *data) {
struct wlr_event_touch_motion *event = data;
struct roots_input *input =
wl_container_of(listener, input, cursor_touch_motion);
struct roots_touch_point *point;
wl_list_for_each(point, &input->touch_points, link) {
if (point->slot == event->slot) {
point->x = event->x_mm / event->width_mm;
point->y = event->y_mm / event->height_mm;
wlr_cursor_warp_absolute(input->cursor, event->device,
point->x, point->y);
cursor_update_position(input,
(uint32_t)(event->time_usec / 1000));
break;
}
}
}
static void handle_tool_axis(struct wl_listener *listener, void *data) {
struct roots_input *input = wl_container_of(listener, input, cursor_tool_axis);
struct wlr_event_tablet_tool_axis *event = data;
@ -342,6 +393,9 @@ static void handle_request_set_cursor(struct wl_listener *listener,
void cursor_initialize(struct roots_input *input) {
struct wlr_cursor *cursor = input->cursor;
// TODO: Does this belong here
wl_list_init(&input->touch_points);
wl_list_init(&input->cursor_motion.link);
wl_signal_add(&cursor->events.motion, &input->cursor_motion);
@ -360,6 +414,18 @@ void cursor_initialize(struct roots_input *input) {
wl_signal_add(&cursor->events.axis, &input->cursor_axis);
input->cursor_axis.notify = handle_cursor_axis;
wl_list_init(&input->cursor_touch_down.link);
wl_signal_add(&cursor->events.touch_down, &input->cursor_touch_down);
input->cursor_touch_down.notify = handle_touch_down;
wl_list_init(&input->cursor_touch_up.link);
wl_signal_add(&cursor->events.touch_up, &input->cursor_touch_up);
input->cursor_touch_up.notify = handle_touch_up;
wl_list_init(&input->cursor_touch_motion.link);
wl_signal_add(&cursor->events.touch_motion, &input->cursor_touch_motion);
input->cursor_touch_motion.notify = handle_touch_motion;
wl_list_init(&input->cursor_tool_axis.link);
wl_signal_add(&cursor->events.tablet_tool_axis, &input->cursor_tool_axis);
input->cursor_tool_axis.notify = handle_tool_axis;

4
rootston/input.c
View file

@ -37,7 +37,7 @@ static void input_add_notify(struct wl_listener *listener, void *data) {
pointer_add(device, input);
break;
case WLR_INPUT_DEVICE_TOUCH:
//touch_add(device, input);
touch_add(device, input);
break;
case WLR_INPUT_DEVICE_TABLET_TOOL:
tablet_tool_add(device, input);
@ -58,7 +58,7 @@ static void input_remove_notify(struct wl_listener *listener, void *data) {
pointer_remove(device, input);
break;
case WLR_INPUT_DEVICE_TOUCH:
//touch_remove(device, input);
touch_remove(device, input);
break;
case WLR_INPUT_DEVICE_TABLET_TOOL:
tablet_tool_remove(device, input);

1
rootston/meson.build
View file

@ -9,6 +9,7 @@ sources = [
'output.c',
'pointer.c',
'tablet_tool.c',
'touch.c',
'xdg_shell_v6.c',
'wl_shell.c',
]

26
rootston/touch.c Normal file
View file

@ -0,0 +1,26 @@
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_pointer.h>
#include "rootston/input.h"
// TODO: we'll likely want touch events to both control the cursor *and* be
// submitted directly to the seat.
void touch_add(struct wlr_input_device *device, struct roots_input *input) {
struct roots_touch *touch = calloc(sizeof(struct roots_touch), 1);
device->data = touch;
touch->device = device;
touch->input = input;
wl_list_insert(&input->touch, &touch->link);
wlr_cursor_attach_input_device(input->cursor, device);
cursor_load_config(input->server->config, input->cursor,
input, input->server->desktop);
}
void touch_remove(struct wlr_input_device *device, struct roots_input *input) {
struct roots_touch *touch = device->data;
wlr_cursor_detach_input_device(input->cursor, device);
wl_list_remove(&touch->link);
free(touch);
}