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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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70
rootston/cursor.c
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@ -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;