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41d4ccfe44
This was temporarily removed when introducing proper view abstractions.
Now that we have the cg_xwayland_view struct, we reintroduce this
workaround in its proper place.
This also fixes the previous workaround, which checked whether a view
was *currently* mapped and not if it *has ever* been mapped.
See #18, #19 and 443d955dfd.
173 lines
3.7 KiB
C
173 lines
3.7 KiB
C
/*
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* Cage: A Wayland kiosk.
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*
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* Copyright (C) 2018-2019 Jente Hidskes
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*
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* See the LICENSE file accompanying this file.
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*/
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#define _POSIX_C_SOURCE 200809L
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_surface.h>
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#include "output.h"
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#include "seat.h"
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#include "server.h"
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#include "view.h"
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#if CAGE_HAS_XWAYLAND
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#include "xwayland.h"
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#endif
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char *
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view_get_title(struct cg_view *view)
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{
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const char *title = view->impl->get_title(view);
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return strndup(title, strlen(title));
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}
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bool
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view_is_primary(struct cg_view *view)
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{
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return view->impl->is_primary(view);
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}
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bool
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view_has_children(struct cg_server *server, struct cg_view *parent)
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{
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struct cg_view *child;
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wl_list_for_each(child, &server->views, link) {
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if (parent != child && parent->impl->is_parent(parent, child)) {
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return true;
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}
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}
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return false;
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}
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void
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view_activate(struct cg_view *view, bool activate)
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{
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view->impl->activate(view, activate);
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}
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static void
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view_maximize(struct cg_view *view)
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{
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struct cg_output *output = view->server->output;
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int output_width, output_height;
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wlr_output_transformed_resolution(output->wlr_output, &output_width, &output_height);
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view->impl->maximize(view, output_width, output_height);
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}
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static void
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view_center(struct cg_view *view)
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{
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struct wlr_output *output = view->server->output->wlr_output;
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int output_width, output_height;
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wlr_output_transformed_resolution(output, &output_width, &output_height);
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int width, height;
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view->impl->get_geometry(view, &width, &height);
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view->x = (output_width - width) / 2;
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view->y = (output_height - height) / 2;
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}
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void
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view_position(struct cg_view *view)
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{
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if (view_is_primary(view)) {
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view_maximize(view);
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} else {
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view_center(view);
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}
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}
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void
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view_for_each_surface(struct cg_view *view, wlr_surface_iterator_func_t iterator, void *data)
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{
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view->impl->for_each_surface(view, iterator, data);
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}
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void
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view_unmap(struct cg_view *view)
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{
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wl_list_remove(&view->link);
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view->wlr_surface = NULL;
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}
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void
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view_map(struct cg_view *view, struct wlr_surface *surface)
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{
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view->wlr_surface = surface;
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view_position(view);
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wl_list_insert(&view->server->views, &view->link);
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seat_set_focus(view->server->seat, view);
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}
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void
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view_destroy(struct cg_view *view)
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{
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struct cg_server *server = view->server;
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bool ever_been_mapped = true;
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#if CAGE_HAS_XWAYLAND
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if (view->type == CAGE_XWAYLAND_VIEW) {
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struct cg_xwayland_view *xwayland_view = xwayland_view_from_view(view);
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ever_been_mapped = xwayland_view->ever_been_mapped;
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}
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#endif
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if (view->wlr_surface != NULL) {
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view_unmap(view);
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}
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view->impl->destroy(view);
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/* If there is a previous view in the list, focus that. */
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bool empty = wl_list_empty(&server->views);
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if (!empty) {
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struct cg_view *prev = wl_container_of(server->views.next, prev, link);
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seat_set_focus(server->seat, prev);
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} else if (ever_been_mapped) {
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/* The list is empty and the last view has been
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mapped, so we can safely exit. */
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wl_display_terminate(server->wl_display);
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}
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}
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void
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view_init(struct cg_view *view, struct cg_server *server, enum cg_view_type type,
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const struct cg_view_impl *impl)
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{
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view->server = server;
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view->type = type;
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view->impl = impl;
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}
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struct cg_view *
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view_from_wlr_surface(struct cg_server *server, struct wlr_surface *surface)
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{
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struct cg_view *view;
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wl_list_for_each(view, &server->views, link) {
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if (view->wlr_surface == surface) {
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return view;
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}
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}
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return NULL;
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}
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struct wlr_surface *
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view_wlr_surface_at(struct cg_view *view, double sx, double sy, double *sub_x, double *sub_y)
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{
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return view->impl->wlr_surface_at(view, sx, sy, sub_x, sub_y);
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}
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