swayfx/sway/input/cursor.c
Ryan Dwyer 0b6b6716e2 Fix clicking a floating split container
It would focus the split container rather than the child.

This commit makes it track the child and the split container separately
and send the surface click to the child.
2018-07-28 22:41:04 +10:00

927 lines
30 KiB
C

#define _XOPEN_SOURCE 700
#include <math.h>
#ifdef __linux__
#include <linux/input-event-codes.h>
#elif __FreeBSD__
#include <dev/evdev/input-event-codes.h>
#endif
#include <limits.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/types/wlr_idle.h>
#include "list.h"
#include "log.h"
#include "config.h"
#include "sway/desktop.h"
#include "sway/desktop/transaction.h"
#include "sway/input/cursor.h"
#include "sway/input/keyboard.h"
#include "sway/layers.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "wlr-layer-shell-unstable-v1-protocol.h"
static uint32_t get_current_time_msec() {
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return now.tv_nsec / 1000;
}
static struct wlr_surface *layer_surface_at(struct sway_output *output,
struct wl_list *layer, double ox, double oy, double *sx, double *sy) {
struct sway_layer_surface *sway_layer;
wl_list_for_each_reverse(sway_layer, layer, link) {
struct wlr_surface *wlr_surface =
sway_layer->layer_surface->surface;
double _sx = ox - sway_layer->geo.x;
double _sy = oy - sway_layer->geo.y;
// TODO: Test popups/subsurfaces
if (wlr_surface_point_accepts_input(wlr_surface, _sx, _sy)) {
*sx = _sx;
*sy = _sy;
return wlr_surface;
}
}
return NULL;
}
/**
* Returns the container at the cursor's position. If there is a surface at that
* location, it is stored in **surface (it may not be a view).
*/
static struct sway_container *container_at_coords(
struct sway_seat *seat, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
// check for unmanaged views first
#ifdef HAVE_XWAYLAND
struct wl_list *unmanaged = &root_container.sway_root->xwayland_unmanaged;
struct sway_xwayland_unmanaged *unmanaged_surface;
wl_list_for_each_reverse(unmanaged_surface, unmanaged, link) {
struct wlr_xwayland_surface *xsurface =
unmanaged_surface->wlr_xwayland_surface;
double _sx = lx - unmanaged_surface->lx;
double _sy = ly - unmanaged_surface->ly;
if (wlr_surface_point_accepts_input(xsurface->surface, _sx, _sy)) {
*surface = xsurface->surface;
*sx = _sx;
*sy = _sy;
return NULL;
}
}
#endif
// find the output the cursor is on
struct wlr_output_layout *output_layout =
root_container.sway_root->output_layout;
struct wlr_output *wlr_output = wlr_output_layout_output_at(
output_layout, lx, ly);
if (wlr_output == NULL) {
return NULL;
}
struct sway_output *output = wlr_output->data;
double ox = lx, oy = ly;
wlr_output_layout_output_coords(output_layout, wlr_output, &ox, &oy);
// find the focused workspace on the output for this seat
struct sway_container *ws = seat_get_focus_inactive(seat, output->swayc);
if (ws && ws->type != C_WORKSPACE) {
ws = container_parent(ws, C_WORKSPACE);
}
if (!ws) {
return output->swayc;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
ox, oy, sx, sy))) {
return ws;
}
if (ws->sway_workspace->fullscreen) {
return container_at(ws->sway_workspace->fullscreen, lx, ly,
surface, sx, sy);
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
ox, oy, sx, sy))) {
return ws;
}
struct sway_container *c;
if ((c = floating_container_at(lx, ly, surface, sx, sy))) {
return c;
}
if ((c = container_at(ws, lx, ly, surface, sx, sy))) {
return c;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
ox, oy, sx, sy))) {
return ws;
}
if ((*surface = layer_surface_at(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
ox, oy, sx, sy))) {
return ws;
}
c = seat_get_active_child(seat, output->swayc);
if (c) {
return c;
}
if (!c && output->swayc->children->length) {
c = output->swayc->children->items[0];
return c;
}
return output->swayc;
}
static enum wlr_edges find_resize_edge(struct sway_container *cont,
struct sway_cursor *cursor) {
if (cont->type != C_VIEW) {
return WLR_EDGE_NONE;
}
struct sway_view *view = cont->sway_view;
if (view->border == B_NONE || !view->border_thickness || view->using_csd) {
return WLR_EDGE_NONE;
}
enum wlr_edges edge = 0;
if (cursor->cursor->x < cont->x + view->border_thickness) {
edge |= WLR_EDGE_LEFT;
}
if (cursor->cursor->y < cont->y + view->border_thickness) {
edge |= WLR_EDGE_TOP;
}
if (cursor->cursor->x >= cont->x + cont->width - view->border_thickness) {
edge |= WLR_EDGE_RIGHT;
}
if (cursor->cursor->y >= cont->y + cont->height - view->border_thickness) {
edge |= WLR_EDGE_BOTTOM;
}
return edge;
}
static void handle_move_motion(struct sway_seat *seat,
struct sway_cursor *cursor) {
struct sway_container *con = seat->op_container;
desktop_damage_whole_container(con);
container_floating_translate(con,
cursor->cursor->x - cursor->previous.x,
cursor->cursor->y - cursor->previous.y);
desktop_damage_whole_container(con);
}
static void calculate_floating_constraints(struct sway_container *con,
int *min_width, int *max_width, int *min_height, int *max_height) {
if (config->floating_minimum_width == -1) { // no minimum
*min_width = 0;
} else if (config->floating_minimum_width == 0) { // automatic
*min_width = 75;
} else {
*min_width = config->floating_minimum_width;
}
if (config->floating_minimum_height == -1) { // no minimum
*min_height = 0;
} else if (config->floating_minimum_height == 0) { // automatic
*min_height = 50;
} else {
*min_height = config->floating_minimum_height;
}
if (config->floating_maximum_width == -1) { // no maximum
*max_width = INT_MAX;
} else if (config->floating_maximum_width == 0) { // automatic
struct sway_container *ws = container_parent(con, C_WORKSPACE);
*max_width = ws->width;
} else {
*max_width = config->floating_maximum_width;
}
if (config->floating_maximum_height == -1) { // no maximum
*max_height = INT_MAX;
} else if (config->floating_maximum_height == 0) { // automatic
struct sway_container *ws = container_parent(con, C_WORKSPACE);
*max_height = ws->height;
} else {
*max_height = config->floating_maximum_height;
}
}
static void handle_resize_motion(struct sway_seat *seat,
struct sway_cursor *cursor) {
struct sway_container *con = seat->op_container;
enum wlr_edges edge = seat->op_resize_edge;
// The amount the mouse has moved since the start of the resize operation
// Positive is down/right
double mouse_move_x = cursor->cursor->x - seat->op_ref_lx;
double mouse_move_y = cursor->cursor->y - seat->op_ref_ly;
if (edge == WLR_EDGE_TOP || edge == WLR_EDGE_BOTTOM) {
mouse_move_x = 0;
}
if (edge == WLR_EDGE_LEFT || edge == WLR_EDGE_RIGHT) {
mouse_move_y = 0;
}
double grow_width = edge & WLR_EDGE_LEFT ? -mouse_move_x : mouse_move_x;
double grow_height = edge & WLR_EDGE_TOP ? -mouse_move_y : mouse_move_y;
if (seat->op_resize_preserve_ratio) {
double x_multiplier = grow_width / seat->op_ref_width;
double y_multiplier = grow_height / seat->op_ref_height;
double max_multiplier = fmax(x_multiplier, y_multiplier);
grow_width = seat->op_ref_width * max_multiplier;
grow_height = seat->op_ref_height * max_multiplier;
}
// Determine new width/height, and accommodate for floating min/max values
double width = seat->op_ref_width + grow_width;
double height = seat->op_ref_height + grow_height;
int min_width, max_width, min_height, max_height;
calculate_floating_constraints(con, &min_width, &max_width,
&min_height, &max_height);
width = fmax(min_width, fmin(width, max_width));
height = fmax(min_height, fmin(height, max_height));
// Apply the view's min/max size
if (con->type == C_VIEW) {
double view_min_width, view_max_width, view_min_height, view_max_height;
view_get_constraints(con->sway_view, &view_min_width, &view_max_width,
&view_min_height, &view_max_height);
width = fmax(view_min_width, fmin(width, view_max_width));
height = fmax(view_min_height, fmin(height, view_max_height));
}
// Recalculate these, in case we hit a min/max limit
grow_width = width - seat->op_ref_width;
grow_height = height - seat->op_ref_height;
// Determine grow x/y values - these are relative to the container's x/y at
// the start of the resize operation.
double grow_x = 0, grow_y = 0;
if (edge & WLR_EDGE_LEFT) {
grow_x = -grow_width;
} else if (edge & WLR_EDGE_RIGHT) {
grow_x = 0;
} else {
grow_x = -grow_width / 2;
}
if (edge & WLR_EDGE_TOP) {
grow_y = -grow_height;
} else if (edge & WLR_EDGE_BOTTOM) {
grow_y = 0;
} else {
grow_y = -grow_height / 2;
}
// Determine the amounts we need to bump everything relative to the current
// size.
int relative_grow_width = width - con->width;
int relative_grow_height = height - con->height;
int relative_grow_x = (seat->op_ref_con_lx + grow_x) - con->x;
int relative_grow_y = (seat->op_ref_con_ly + grow_y) - con->y;
// Actually resize stuff
con->x += relative_grow_x;
con->y += relative_grow_y;
con->width += relative_grow_width;
con->height += relative_grow_height;
if (con->type == C_VIEW) {
struct sway_view *view = con->sway_view;
view->x += relative_grow_x;
view->y += relative_grow_y;
view->width += relative_grow_width;
view->height += relative_grow_height;
}
arrange_windows(con);
}
void cursor_send_pointer_motion(struct sway_cursor *cursor, uint32_t time_msec,
bool allow_refocusing) {
if (time_msec == 0) {
time_msec = get_current_time_msec();
}
struct sway_seat *seat = cursor->seat;
if (seat->operation != OP_NONE) {
if (seat->operation == OP_MOVE) {
handle_move_motion(seat, cursor);
} else {
handle_resize_motion(seat, cursor);
}
cursor->previous.x = cursor->cursor->x;
cursor->previous.y = cursor->cursor->y;
return;
}
struct wlr_seat *wlr_seat = seat->wlr_seat;
struct wlr_surface *surface = NULL;
double sx, sy;
// Find the container beneath the pointer's previous position
struct sway_container *prev_c = container_at_coords(seat,
cursor->previous.x, cursor->previous.y, &surface, &sx, &sy);
// Update the stored previous position
cursor->previous.x = cursor->cursor->x;
cursor->previous.y = cursor->cursor->y;
struct sway_container *c = container_at_coords(seat,
cursor->cursor->x, cursor->cursor->y, &surface, &sx, &sy);
if (c && config->focus_follows_mouse && allow_refocusing) {
struct sway_container *focus = seat_get_focus(seat);
if (focus && c->type == C_WORKSPACE) {
// Only follow the mouse if it would move to a new output
// Otherwise we'll focus the workspace, which is probably wrong
if (focus->type != C_OUTPUT) {
focus = container_parent(focus, C_OUTPUT);
}
struct sway_container *output = c;
if (output->type != C_OUTPUT) {
output = container_parent(c, C_OUTPUT);
}
if (output != focus) {
seat_set_focus_warp(seat, c, false);
}
} else if (c->type == C_VIEW) {
// Focus c if the following are true:
// - cursor is over a new view, i.e. entered a new window; and
// - the new view is visible, i.e. not hidden in a stack or tab; and
// - the seat does not have a keyboard grab
if (!wlr_seat_keyboard_has_grab(cursor->seat->wlr_seat) &&
c != prev_c &&
view_is_visible(c->sway_view)) {
seat_set_focus_warp(seat, c, false);
} else {
struct sway_container *next_focus =
seat_get_focus_inactive(seat, &root_container);
if (next_focus && next_focus->type == C_VIEW &&
view_is_visible(next_focus->sway_view)) {
seat_set_focus_warp(seat, next_focus, false);
}
}
}
}
// Handle cursor image
if (surface) {
// Reset cursor if switching between clients
struct wl_client *client = wl_resource_get_client(surface->resource);
if (client != cursor->image_client) {
cursor_set_image(cursor, "left_ptr", client);
}
} else if (c && container_is_floating(c)) {
// Try a floating container's resize edge
enum wlr_edges edge = find_resize_edge(c, cursor);
const char *image = edge == WLR_EDGE_NONE ?
"left_ptr" : wlr_xcursor_get_resize_name(edge);
cursor_set_image(cursor, image, NULL);
} else {
cursor_set_image(cursor, "left_ptr", NULL);
}
// send pointer enter/leave
if (surface != NULL) {
if (seat_is_input_allowed(seat, surface)) {
wlr_seat_pointer_notify_enter(wlr_seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(wlr_seat, time_msec, sx, sy);
}
} else {
wlr_seat_pointer_clear_focus(wlr_seat);
}
struct wlr_drag_icon *wlr_drag_icon;
wl_list_for_each(wlr_drag_icon, &wlr_seat->drag_icons, link) {
struct sway_drag_icon *drag_icon = wlr_drag_icon->data;
drag_icon_update_position(drag_icon);
}
}
static void handle_cursor_motion(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, motion);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_pointer_motion *event = data;
wlr_cursor_move(cursor->cursor, event->device,
event->delta_x, event->delta_y);
cursor_send_pointer_motion(cursor, event->time_msec, true);
transaction_commit_dirty();
}
static void handle_cursor_motion_absolute(
struct wl_listener *listener, void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, motion_absolute);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_pointer_motion_absolute *event = data;
wlr_cursor_warp_absolute(cursor->cursor, event->device, event->x, event->y);
cursor_send_pointer_motion(cursor, event->time_msec, true);
transaction_commit_dirty();
}
static void dispatch_cursor_button_floating(struct sway_cursor *cursor,
uint32_t time_msec, uint32_t button, enum wlr_button_state state,
struct wlr_surface *surface, double sx, double sy,
struct sway_container *cont) {
struct sway_seat *seat = cursor->seat;
// Deny moving or resizing a fullscreen container
if (container_is_fullscreen_or_child(cont)) {
seat_pointer_notify_button(seat, time_msec, button, state);
return;
}
struct sway_container *floater = cont;
while (floater->parent->layout != L_FLOATING) {
floater = floater->parent;
}
struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat->wlr_seat);
bool mod_pressed = keyboard &&
(wlr_keyboard_get_modifiers(keyboard) & config->floating_mod);
enum wlr_edges edge = find_resize_edge(floater, cursor);
bool over_title = edge == WLR_EDGE_NONE && !surface;
// Check for beginning move
uint32_t btn_move = config->floating_mod_inverse ? BTN_RIGHT : BTN_LEFT;
if (button == btn_move && state == WLR_BUTTON_PRESSED &&
(mod_pressed || over_title)) {
seat_begin_move(seat, floater, button);
return;
}
// Check for beginning resize
bool resizing_via_border = button == BTN_LEFT && edge != WLR_EDGE_NONE;
uint32_t btn_resize = config->floating_mod_inverse ? BTN_LEFT : BTN_RIGHT;
bool resizing_via_mod = button == btn_resize && mod_pressed;
if ((resizing_via_border || resizing_via_mod) &&
state == WLR_BUTTON_PRESSED) {
if (edge == WLR_EDGE_NONE) {
edge |= cursor->cursor->x > floater->x + floater->width / 2 ?
WLR_EDGE_RIGHT : WLR_EDGE_LEFT;
edge |= cursor->cursor->y > floater->y + floater->height / 2 ?
WLR_EDGE_BOTTOM : WLR_EDGE_TOP;
}
seat_begin_resize(seat, floater, button, edge);
return;
}
// Send event to surface
seat_set_focus(seat, cont);
seat_pointer_notify_button(seat, time_msec, button, state);
}
/**
* Remove a button (and duplicates) to the sorted list of currently pressed buttons
*/
static void state_erase_button(struct sway_cursor *cursor, uint32_t button) {
size_t j = 0;
for (size_t i = 0; i < cursor->pressed_button_count; ++i) {
if (i > j) {
cursor->pressed_buttons[j] = cursor->pressed_buttons[i];
}
if (cursor->pressed_buttons[i] != button) {
++j;
}
}
while (cursor->pressed_button_count > j) {
--cursor->pressed_button_count;
cursor->pressed_buttons[cursor->pressed_button_count] = 0;
}
}
/**
* Add a button to the sorted list of currently pressed buttons, if there
* is space.
*/
static void state_add_button(struct sway_cursor *cursor, uint32_t button) {
if (cursor->pressed_button_count >= SWAY_CURSOR_PRESSED_BUTTONS_CAP) {
return;
}
size_t i = 0;
while (i < cursor->pressed_button_count && cursor->pressed_buttons[i] < button) {
++i;
}
size_t j = cursor->pressed_button_count;
while (j > i) {
cursor->pressed_buttons[j] = cursor->pressed_buttons[j - 1];
--j;
}
cursor->pressed_buttons[i] = button;
cursor->pressed_button_count++;
}
/**
* Return the mouse binding which matches modifier, click location, release,
* and pressed button state, otherwise return null.
*/
static struct sway_binding* get_active_mouse_binding(const struct sway_cursor *cursor,
list_t *bindings, uint32_t modifiers, bool release, bool on_titlebar,
bool on_border, bool on_content) {
uint32_t click_region = (on_titlebar ? BINDING_TITLEBAR : 0) |
(on_border ? BINDING_BORDER : 0) |
(on_content ? BINDING_CONTENTS : 0);
for (int i = 0; i < bindings->length; ++i) {
struct sway_binding *binding = bindings->items[i];
if (modifiers ^ binding->modifiers ||
cursor->pressed_button_count != (size_t)binding->keys->length ||
release != (binding->flags & BINDING_RELEASE) ||
!(click_region & binding->flags)) {
continue;
}
bool match = true;
for (size_t j = 0; j < cursor->pressed_button_count; j++) {
uint32_t key = *(uint32_t *)binding->keys->items[j];
if (key != cursor->pressed_buttons[j]) {
match = false;
break;
}
}
if (!match) {
continue;
}
return binding;
}
return NULL;
}
void dispatch_cursor_button(struct sway_cursor *cursor,
uint32_t time_msec, uint32_t button, enum wlr_button_state state) {
if (cursor->seat->operation != OP_NONE &&
button == cursor->seat->op_button && state == WLR_BUTTON_RELEASED) {
seat_end_mouse_operation(cursor->seat);
seat_pointer_notify_button(cursor->seat, time_msec, button, state);
return;
}
if (time_msec == 0) {
time_msec = get_current_time_msec();
}
struct wlr_surface *surface = NULL;
double sx, sy;
struct sway_container *cont = container_at_coords(cursor->seat,
cursor->cursor->x, cursor->cursor->y, &surface, &sx, &sy);
// Handle mouse bindings
bool on_border = cont && (find_resize_edge(cont, cursor) != WLR_EDGE_NONE);
bool on_contents = !on_border && surface;
bool on_titlebar = !on_border && !surface;
struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(cursor->seat->wlr_seat);
uint32_t modifiers = keyboard ? wlr_keyboard_get_modifiers(keyboard) : 0;
struct sway_binding *binding = NULL;
if (state == WLR_BUTTON_PRESSED) {
state_add_button(cursor, button);
binding = get_active_mouse_binding(cursor,
config->current_mode->mouse_bindings, modifiers, false,
on_titlebar, on_border, on_contents);
} else {
binding = get_active_mouse_binding(cursor,
config->current_mode->mouse_bindings, modifiers, true,
on_titlebar, on_border, on_contents);
state_erase_button(cursor, button);
}
if (binding) {
seat_execute_command(cursor->seat, binding);
// TODO: do we want to pass on the event?
}
if (surface && wlr_surface_is_layer_surface(surface)) {
struct wlr_layer_surface *layer =
wlr_layer_surface_from_wlr_surface(surface);
if (layer->current.keyboard_interactive) {
seat_set_focus_layer(cursor->seat, layer);
}
seat_pointer_notify_button(cursor->seat, time_msec, button, state);
} else if (cont && container_is_floating_or_child(cont)) {
dispatch_cursor_button_floating(cursor, time_msec, button, state,
surface, sx, sy, cont);
} else if (surface && cont && cont->type != C_VIEW) {
// Avoid moving keyboard focus from a surface that accepts it to one
// that does not unless the change would move us to a new workspace.
//
// This prevents, for example, losing focus when clicking on swaybar.
struct sway_container *new_ws = cont;
if (new_ws && new_ws->type != C_WORKSPACE) {
new_ws = container_parent(new_ws, C_WORKSPACE);
}
struct sway_container *old_ws = seat_get_focus(cursor->seat);
if (old_ws && old_ws->type != C_WORKSPACE) {
old_ws = container_parent(old_ws, C_WORKSPACE);
}
if (new_ws != old_ws) {
seat_set_focus(cursor->seat, cont);
}
seat_pointer_notify_button(cursor->seat, time_msec, button, state);
} else if (cont) {
seat_set_focus(cursor->seat, cont);
seat_pointer_notify_button(cursor->seat, time_msec, button, state);
} else {
seat_pointer_notify_button(cursor->seat, time_msec, button, state);
}
transaction_commit_dirty();
}
static void handle_cursor_button(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, button);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_pointer_button *event = data;
dispatch_cursor_button(cursor,
event->time_msec, event->button, event->state);
}
static void handle_cursor_axis(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, axis);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_pointer_axis *event = data;
wlr_seat_pointer_notify_axis(cursor->seat->wlr_seat, event->time_msec,
event->orientation, event->delta, event->delta_discrete, event->source);
}
static void handle_touch_down(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_down);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_touch_down *event = data;
struct sway_seat *seat = cursor->seat;
struct wlr_seat *wlr_seat = seat->wlr_seat;
struct wlr_surface *surface = NULL;
double lx, ly;
wlr_cursor_absolute_to_layout_coords(cursor->cursor, event->device,
event->x, event->y, &lx, &ly);
double sx, sy;
container_at_coords(seat, lx, ly, &surface, &sx, &sy);
seat->touch_id = event->touch_id;
seat->touch_x = lx;
seat->touch_y = ly;
if (!surface) {
return;
}
// TODO: fall back to cursor simulation if client has not bound to touch
if (seat_is_input_allowed(seat, surface)) {
wlr_seat_touch_notify_down(wlr_seat, surface, event->time_msec,
event->touch_id, sx, sy);
cursor->image_client = NULL;
wlr_cursor_set_image(cursor->cursor, NULL, 0, 0, 0, 0, 0, 0);
}
}
static void handle_touch_up(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_up);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_touch_up *event = data;
struct wlr_seat *seat = cursor->seat->wlr_seat;
// TODO: fall back to cursor simulation if client has not bound to touch
wlr_seat_touch_notify_up(seat, event->time_msec, event->touch_id);
}
static void handle_touch_motion(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, touch_motion);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_touch_motion *event = data;
struct sway_seat *seat = cursor->seat;
struct wlr_seat *wlr_seat = seat->wlr_seat;
struct wlr_surface *surface = NULL;
double lx, ly;
wlr_cursor_absolute_to_layout_coords(cursor->cursor, event->device,
event->x, event->y, &lx, &ly);
double sx, sy;
container_at_coords(cursor->seat, lx, ly, &surface, &sx, &sy);
if (seat->touch_id == event->touch_id) {
seat->touch_x = lx;
seat->touch_y = ly;
struct wlr_drag_icon *wlr_drag_icon;
wl_list_for_each(wlr_drag_icon, &wlr_seat->drag_icons, link) {
struct sway_drag_icon *drag_icon = wlr_drag_icon->data;
drag_icon_update_position(drag_icon);
}
}
if (!surface) {
return;
}
// TODO: fall back to cursor simulation if client has not bound to touch
if (seat_is_input_allowed(cursor->seat, surface)) {
wlr_seat_touch_notify_motion(wlr_seat, event->time_msec,
event->touch_id, sx, sy);
}
}
static double apply_mapping_from_coord(double low, double high, double value) {
if (isnan(value)) {
return value;
}
return (value - low) / (high - low);
}
static void apply_mapping_from_region(struct wlr_input_device *device,
struct input_config_mapped_from_region *region, double *x, double *y) {
double x1 = region->x1, x2 = region->x2;
double y1 = region->y1, y2 = region->y2;
if (region->mm) {
if (device->width_mm == 0 || device->height_mm == 0) {
return;
}
x1 /= device->width_mm;
x2 /= device->width_mm;
y1 /= device->height_mm;
y2 /= device->height_mm;
}
*x = apply_mapping_from_coord(x1, x2, *x);
*y = apply_mapping_from_coord(y1, y2, *y);
}
static void handle_tool_axis(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_axis);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_tablet_tool_axis *event = data;
struct sway_input_device *input_device = event->device->data;
double x = NAN, y = NAN;
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) {
x = event->x;
}
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) {
y = event->y;
}
struct input_config *ic = input_device_get_config(input_device);
if (ic != NULL && ic->mapped_from_region != NULL) {
apply_mapping_from_region(event->device, ic->mapped_from_region, &x, &y);
}
wlr_cursor_warp_absolute(cursor->cursor, event->device, x, y);
cursor_send_pointer_motion(cursor, event->time_msec, true);
transaction_commit_dirty();
}
static void handle_tool_tip(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_tip);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_tablet_tool_tip *event = data;
dispatch_cursor_button(cursor, event->time_msec,
BTN_LEFT, event->state == WLR_TABLET_TOOL_TIP_DOWN ?
WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED);
}
static void handle_tool_button(struct wl_listener *listener, void *data) {
struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_button);
wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
struct wlr_event_tablet_tool_button *event = data;
// TODO: the user may want to configure which tool buttons are mapped to
// which simulated pointer buttons
switch (event->state) {
case WLR_BUTTON_PRESSED:
if (cursor->tool_buttons == 0) {
dispatch_cursor_button(cursor,
event->time_msec, BTN_RIGHT, event->state);
}
cursor->tool_buttons++;
break;
case WLR_BUTTON_RELEASED:
if (cursor->tool_buttons == 1) {
dispatch_cursor_button(cursor,
event->time_msec, BTN_RIGHT, event->state);
}
cursor->tool_buttons--;
break;
}
}
static void handle_request_set_cursor(struct wl_listener *listener,
void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, request_set_cursor);
if (cursor->seat->operation != OP_NONE) {
return;
}
struct wlr_seat_pointer_request_set_cursor_event *event = data;
struct wl_client *focused_client = NULL;
struct wlr_surface *focused_surface =
cursor->seat->wlr_seat->pointer_state.focused_surface;
if (focused_surface != NULL) {
focused_client = wl_resource_get_client(focused_surface->resource);
}
// TODO: check cursor mode
if (focused_client == NULL ||
event->seat_client->client != focused_client) {
wlr_log(WLR_DEBUG, "denying request to set cursor from unfocused client");
return;
}
wlr_cursor_set_surface(cursor->cursor, event->surface, event->hotspot_x,
event->hotspot_y);
cursor->image = NULL;
cursor->image_client = focused_client;
}
void cursor_set_image(struct sway_cursor *cursor, const char *image,
struct wl_client *client) {
if (!cursor->image || strcmp(cursor->image, image) != 0) {
wlr_xcursor_manager_set_cursor_image(cursor->xcursor_manager, image,
cursor->cursor);
cursor->image = image;
}
cursor->image_client = client;
}
void sway_cursor_destroy(struct sway_cursor *cursor) {
if (!cursor) {
return;
}
wlr_xcursor_manager_destroy(cursor->xcursor_manager);
wlr_cursor_destroy(cursor->cursor);
free(cursor);
}
struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
struct sway_cursor *cursor = calloc(1, sizeof(struct sway_cursor));
if (!sway_assert(cursor, "could not allocate sway cursor")) {
return NULL;
}
struct wlr_cursor *wlr_cursor = wlr_cursor_create();
if (!sway_assert(wlr_cursor, "could not allocate wlr cursor")) {
free(cursor);
return NULL;
}
cursor->previous.x = wlr_cursor->x;
cursor->previous.y = wlr_cursor->y;
cursor->seat = seat;
wlr_cursor_attach_output_layout(wlr_cursor,
root_container.sway_root->output_layout);
// input events
wl_signal_add(&wlr_cursor->events.motion, &cursor->motion);
cursor->motion.notify = handle_cursor_motion;
wl_signal_add(&wlr_cursor->events.motion_absolute,
&cursor->motion_absolute);
cursor->motion_absolute.notify = handle_cursor_motion_absolute;
wl_signal_add(&wlr_cursor->events.button, &cursor->button);
cursor->button.notify = handle_cursor_button;
wl_signal_add(&wlr_cursor->events.axis, &cursor->axis);
cursor->axis.notify = handle_cursor_axis;
wl_signal_add(&wlr_cursor->events.touch_down, &cursor->touch_down);
cursor->touch_down.notify = handle_touch_down;
wl_signal_add(&wlr_cursor->events.touch_up, &cursor->touch_up);
cursor->touch_up.notify = handle_touch_up;
wl_signal_add(&wlr_cursor->events.touch_motion,
&cursor->touch_motion);
cursor->touch_motion.notify = handle_touch_motion;
// TODO: tablet protocol support
// Note: We should emulate pointer events for clients that don't support the
// tablet protocol when the time comes
wl_signal_add(&wlr_cursor->events.tablet_tool_axis,
&cursor->tool_axis);
cursor->tool_axis.notify = handle_tool_axis;
wl_signal_add(&wlr_cursor->events.tablet_tool_tip, &cursor->tool_tip);
cursor->tool_tip.notify = handle_tool_tip;
wl_signal_add(&wlr_cursor->events.tablet_tool_button, &cursor->tool_button);
cursor->tool_button.notify = handle_tool_button;
wl_signal_add(&seat->wlr_seat->events.request_set_cursor,
&cursor->request_set_cursor);
cursor->request_set_cursor.notify = handle_request_set_cursor;
cursor->cursor = wlr_cursor;
return cursor;
}