wlroots-hyprland/rootston/desktop.c

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#define _POSIX_C_SOURCE 199309L
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#include <assert.h>
#include <time.h>
#include <stdlib.h>
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#include <math.h>
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#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_gamma_control.h>
#include <wlr/types/wlr_server_decoration.h>
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#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_wl_shell.h>
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#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/types/wlr_xdg_shell_v6.h>
#include <wlr/util/log.h>
#include <server-decoration-protocol.h>
#include "rootston/server.h"
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#include "rootston/seat.h"
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#include "rootston/xcursor.h"
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// TODO replace me with a signal
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void view_destroy(struct roots_view *view) {
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struct roots_desktop *desktop = view->desktop;
struct roots_input *input = desktop->server->input;
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struct roots_seat *seat;
wl_list_for_each(seat, &input->seats, link) {
if (seat->focus == view) {
seat->focus = NULL;
seat->cursor->mode = ROOTS_CURSOR_PASSTHROUGH;
}
}
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for (size_t i = 0; i < desktop->views->length; ++i) {
struct roots_view *_view = desktop->views->items[i];
if (view == _view) {
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wlr_list_del(desktop->views, i);
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break;
}
}
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free(view);
}
void view_get_box(const struct roots_view *view, struct wlr_box *box) {
box->x = view->x;
box->y = view->y;
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if (view->get_size) {
view->get_size(view, box);
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} else {
box->width = view->wlr_surface->current->width;
box->height = view->wlr_surface->current->height;
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}
}
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static void view_update_output(const struct roots_view *view,
const struct wlr_box *before) {
struct roots_desktop *desktop = view->desktop;
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struct roots_output *output;
struct wlr_box box;
view_get_box(view, &box);
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wl_list_for_each(output, &desktop->outputs, link) {
bool intersected = before->x != -1 && wlr_output_layout_intersects(
desktop->layout, output->wlr_output,
before->x, before->y, before->x + before->width,
before->y + before->height);
bool intersects = wlr_output_layout_intersects(
desktop->layout, output->wlr_output,
view->x, view->y, view->x + box.width, view->y + box.height);
if (intersected && !intersects) {
wlr_surface_send_leave(view->wlr_surface, output->wlr_output);
}
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if (!intersected && intersects) {
wlr_surface_send_enter(view->wlr_surface, output->wlr_output);
}
}
}
void view_move(struct roots_view *view, double x, double y) {
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struct wlr_box before;
view_get_box(view, &before);
if (view->move) {
view->move(view, x, y);
} else {
view->x = x;
view->y = y;
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}
}
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void view_activate(struct roots_view *view, bool activate) {
if (view->activate) {
view->activate(view, activate);
}
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}
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void view_resize(struct roots_view *view, uint32_t width, uint32_t height) {
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struct wlr_box before;
view_get_box(view, &before);
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if (view->resize) {
view->resize(view, width, height);
}
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view_update_output(view, &before);
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}
void view_move_resize(struct roots_view *view, double x, double y,
uint32_t width, uint32_t height) {
if (view->move_resize) {
view->move_resize(view, x, y, width, height);
return;
}
view_move(view, x, y);
view_resize(view, width, height);
}
void view_maximize(struct roots_view *view, bool maximized) {
if (view->maximized == maximized) {
return;
}
if (view->maximize) {
view->maximize(view, maximized);
}
if (!view->maximized && maximized) {
struct wlr_box view_box;
view_get_box(view, &view_box);
view->maximized = true;
view->saved.x = view->x;
view->saved.y = view->y;
view->saved.rotation = view->rotation;
view->saved.width = view_box.width;
view->saved.height = view_box.height;
double output_x, output_y;
wlr_output_layout_closest_point(view->desktop->layout, NULL,
view->x + (double)view_box.width/2,
view->y + (double)view_box.height/2,
&output_x, &output_y);
struct wlr_output *output = wlr_output_layout_output_at(
view->desktop->layout, output_x, output_y);
struct wlr_box *output_box =
wlr_output_layout_get_box(view->desktop->layout, output);
view_move_resize(view, output_box->x, output_box->y, output_box->width,
output_box->height);
view->rotation = 0;
}
if (view->maximized && !maximized) {
view->maximized = false;
view_move_resize(view, view->saved.x, view->saved.y, view->saved.width,
view->saved.height);
view->rotation = view->saved.rotation;
}
}
void view_close(struct roots_view *view) {
if (view->close) {
view->close(view);
}
}
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bool view_center(struct roots_view *view) {
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struct wlr_box box;
view_get_box(view, &box);
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struct roots_desktop *desktop = view->desktop;
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struct roots_input *input = desktop->server->input;
struct roots_seat *seat = NULL, *_seat;
wl_list_for_each(_seat, &input->seats, link) {
if (!seat || (seat->seat->last_event.tv_sec > _seat->seat->last_event.tv_sec &&
seat->seat->last_event.tv_nsec > _seat->seat->last_event.tv_nsec)) {
seat = _seat;
}
}
if (!seat) {
return false;
}
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struct wlr_output *output =
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wlr_output_layout_output_at(desktop->layout,
seat->cursor->cursor->x,
seat->cursor->cursor->y);
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if (!output) {
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// empty layout
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return false;
}
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const struct wlr_output_layout_output *l_output =
wlr_output_layout_get(desktop->layout, output);
int width, height;
wlr_output_effective_resolution(output, &width, &height);
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double view_x = (double)(width - box.width) / 2 + l_output->x;
double view_y = (double)(height - box.height) / 2 + l_output->y;
view_move(view, view_x, view_y);
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return true;
}
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void view_setup(struct roots_view *view) {
struct roots_input *input = view->desktop->server->input;
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// TODO what seat gets focus? the one with the last input event?
struct roots_seat *seat;
wl_list_for_each(seat, &input->seats, link) {
roots_seat_focus_view(seat, view);
}
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view_center(view);
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struct wlr_box before;
view_get_box(view, &before);
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view_update_output(view, &before);
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}
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void view_teardown(struct roots_view *view) {
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// TODO replace me with a signal
/*
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struct wlr_list *views = view->desktop->views;
if (views->length < 2 || views->items[views->length-1] != view) {
return;
}
struct roots_view *prev_view = views->items[views->length-2];
struct roots_input *input = prev_view->desktop->server->input;
set_view_focus(input, prev_view->desktop, prev_view);
*/
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}
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struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
for (ssize_t i = desktop->views->length - 1; i >= 0; --i) {
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struct roots_view *view = desktop->views->items[i];
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if (view->type == ROOTS_WL_SHELL_VIEW &&
view->wl_shell_surface->state ==
WLR_WL_SHELL_SURFACE_STATE_POPUP) {
continue;
}
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double view_sx = lx - view->x;
double view_sy = ly - view->y;
struct wlr_surface_state *state = view->wlr_surface->current;
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struct wlr_box box = {
.x = 0,
.y = 0,
.width = state->buffer_width / state->scale,
.height = state->buffer_height / state->scale,
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};
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if (view->rotation != 0.0) {
// Coordinates relative to the center of the view
double ox = view_sx - (double)box.width/2,
oy = view_sy - (double)box.height/2;
// Rotated coordinates
double rx = cos(view->rotation)*ox - sin(view->rotation)*oy,
ry = cos(view->rotation)*oy + sin(view->rotation)*ox;
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view_sx = rx + (double)box.width/2;
view_sy = ry + (double)box.height/2;
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}
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if (view->type == ROOTS_XDG_SHELL_V6_VIEW) {
double popup_sx, popup_sy;
struct wlr_xdg_surface_v6 *popup =
wlr_xdg_surface_v6_popup_at(view->xdg_surface_v6,
view_sx, view_sy, &popup_sx, &popup_sy);
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if (popup) {
*sx = view_sx - popup_sx;
*sy = view_sy - popup_sy;
*surface = popup->surface;
return view;
}
}
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if (view->type == ROOTS_WL_SHELL_VIEW) {
double popup_sx, popup_sy;
struct wlr_wl_shell_surface *popup =
wlr_wl_shell_surface_popup_at(view->wl_shell_surface,
view_sx, view_sy, &popup_sx, &popup_sy);
if (popup) {
*sx = view_sx - popup_sx;
*sy = view_sy - popup_sy;
*surface = popup->surface;
return view;
}
}
double sub_x, sub_y;
struct wlr_subsurface *subsurface =
wlr_surface_subsurface_at(view->wlr_surface,
view_sx, view_sy, &sub_x, &sub_y);
if (subsurface) {
*sx = view_sx - sub_x;
*sy = view_sy - sub_y;
*surface = subsurface->surface;
return view;
}
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if (wlr_box_contains_point(&box, view_sx, view_sy) &&
pixman_region32_contains_point(
&view->wlr_surface->current->input,
view_sx, view_sy, NULL)) {
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*sx = view_sx;
*sy = view_sy;
*surface = view->wlr_surface;
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return view;
}
}
return NULL;
}
struct roots_desktop *desktop_create(struct roots_server *server,
struct roots_config *config) {
wlr_log(L_DEBUG, "Initializing roots desktop");
struct roots_desktop *desktop = calloc(1, sizeof(struct roots_desktop));
if (desktop == NULL) {
return NULL;
}
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desktop->views = wlr_list_create();
if (desktop->views == NULL) {
free(desktop);
return NULL;
}
wl_list_init(&desktop->outputs);
desktop->output_add.notify = output_add_notify;
wl_signal_add(&server->backend->events.output_add, &desktop->output_add);
desktop->output_remove.notify = output_remove_notify;
wl_signal_add(&server->backend->events.output_remove,
&desktop->output_remove);
desktop->server = server;
desktop->config = config;
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desktop->xcursor_manager = wlr_xcursor_manager_create(NULL,
ROOTS_XCURSOR_SIZE);
if (desktop->xcursor_manager == NULL) {
wlr_log(L_ERROR, "Cannot create XCursor manager");
wlr_list_free(desktop->views);
free(desktop);
return NULL;
}
desktop->layout = wlr_output_layout_create();
desktop->compositor = wlr_compositor_create(server->wl_display,
server->renderer);
desktop->xdg_shell_v6 = wlr_xdg_shell_v6_create(server->wl_display);
wl_signal_add(&desktop->xdg_shell_v6->events.new_surface,
&desktop->xdg_shell_v6_surface);
desktop->xdg_shell_v6_surface.notify = handle_xdg_shell_v6_surface;
desktop->wl_shell = wlr_wl_shell_create(server->wl_display);
wl_signal_add(&desktop->wl_shell->events.new_surface,
&desktop->wl_shell_surface);
desktop->wl_shell_surface.notify = handle_wl_shell_surface;
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#ifdef HAS_XWAYLAND
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if (config->xwayland) {
desktop->xwayland = wlr_xwayland_create(server->wl_display,
desktop->compositor);
wl_signal_add(&desktop->xwayland->events.new_surface,
&desktop->xwayland_surface);
desktop->xwayland_surface.notify = handle_xwayland_surface;
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if (wlr_xcursor_manager_load(desktop->xcursor_manager, 1)) {
wlr_log(L_ERROR, "Cannot load XWayland XCursor theme");
}
struct wlr_xcursor *xcursor = wlr_xcursor_manager_get_xcursor(
desktop->xcursor_manager, ROOTS_XCURSOR_DEFAULT, 1);
if (xcursor != NULL) {
struct wlr_xcursor_image *image = xcursor->images[0];
wlr_xwayland_set_cursor(desktop->xwayland, image->buffer,
image->width, image->width, image->height, image->hotspot_x,
image->hotspot_y);
}
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}
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#endif
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desktop->gamma_control_manager = wlr_gamma_control_manager_create(
server->wl_display);
desktop->screenshooter = wlr_screenshooter_create(server->wl_display,
server->renderer);
desktop->server_decoration_manager =
wlr_server_decoration_manager_create(server->wl_display);
wlr_server_decoration_manager_set_default_mode(
desktop->server_decoration_manager,
ORG_KDE_KWIN_SERVER_DECORATION_MANAGER_MODE_CLIENT);
return desktop;
}
void desktop_destroy(struct roots_desktop *desktop) {
// TODO
}