X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fshell.c;fp=src%2Fshell.c;h=cac8fa2c7651ebff7295448a7681cd7c8181b773;hb=aa4ba5d283d641da25722af7a966c31d61a9686b;hp=0000000000000000000000000000000000000000;hpb=9c29d2c7870a617bbb9eb521bc1ab8757934e536;p=src%2Fagl-compositor.git diff --git a/src/shell.c b/src/shell.c new file mode 100644 index 0000000..cac8fa2 --- /dev/null +++ b/src/shell.c @@ -0,0 +1,533 @@ +/* + * Copyright © 2019 Collabora, Ltd. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "ivi-compositor.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "shared/os-compatibility.h" + +#include "agl-shell-server-protocol.h" + +void +ivi_set_desktop_surface(struct ivi_surface *surface) +{ + assert(surface->role == IVI_SURFACE_ROLE_NONE); + + surface->role = IVI_SURFACE_ROLE_DESKTOP; + wl_list_insert(&surface->ivi->surfaces, &surface->link); +} + +/* TODO: Replace this with some callback or similar, to have + * adjustable window management policy. + */ +void +ivi_reflow_outputs(struct ivi_compositor *ivi) +{ + struct ivi_surface *surface; + struct ivi_output *output; + int i = 0; + + if (wl_list_empty(&ivi->outputs)) + return; + + output = wl_container_of(ivi->outputs.next, output, link); + + wl_list_for_each(surface, &ivi->surfaces, link) { + struct weston_desktop_surface *dsurface = surface->dsurface; + + int32_t w = output->area.width / 4; + int32_t h = output->area.height / 2; + int32_t x = output->output->x + output->area.x + w * (i % 4); + int32_t y = output->output->y + output->area.y + h * (i / 4); + + if (surface->old_geom.width == -1) { + weston_desktop_surface_set_size(dsurface, w, h); + continue; + } else { + ivi_layout_set_mapped(surface); + ivi_layout_set_position(surface, x, y, w, h); + } + + if (++i == 8) { + if (output->link.next == &ivi->outputs) + break; + + output = wl_container_of(output->link.next, + output, link); + i = 0; + } + } + + ivi_layout_commit(ivi); +} + +void +ivi_layout_set_mapped(struct ivi_surface *surface) +{ + surface->pending.flags |= IVI_SURFACE_PROP_MAP; +} + +void +ivi_layout_set_position(struct ivi_surface *surface, + int32_t x, int32_t y, + int32_t width, int32_t height) +{ + surface->pending.flags |= IVI_SURFACE_PROP_POSITION; + surface->pending.x = x; + surface->pending.y = y; + surface->pending.width = width; + surface->pending.height = height; +} + +void +ivi_layout_commit(struct ivi_compositor *ivi) +{ + struct ivi_surface *surface; + + wl_list_for_each(surface, &ivi->surfaces, link) { + struct weston_desktop_surface *dsurface = surface->dsurface; + struct weston_surface *wsurface = + weston_desktop_surface_get_surface(dsurface); + struct weston_geometry geom; + struct weston_view *view; + + /* + * TODO: Hoist view into ivi_struct. It doesn't need ot be part + * of the tagged union. + */ + switch (surface->role) { + case IVI_SURFACE_ROLE_DESKTOP: + view = surface->desktop.view; + break; + case IVI_SURFACE_ROLE_BACKGROUND: + view = surface->bg.view; + break; + case IVI_SURFACE_ROLE_PANEL: + view = surface->panel.view; + break; + default: + continue; + } + + if (surface->pending.flags & IVI_SURFACE_PROP_MAP) { + view = weston_desktop_surface_create_view(dsurface); + wsurface->is_mapped = true; + + surface->desktop.view = view; + weston_layer_entry_insert(&ivi->normal.view_list, + &view->layer_link); + weston_view_update_transform(view); + weston_view_set_mask_infinite(view); + weston_view_schedule_repaint(view); + } + + geom = weston_desktop_surface_get_geometry(dsurface); + + if (surface->pending.flags & IVI_SURFACE_PROP_POSITION) { + weston_desktop_surface_set_size(dsurface, + surface->pending.width, + surface->pending.height); + weston_view_set_position(view, + surface->pending.x - geom.x, + surface->pending.y - geom.y); + } + + surface->pending.flags = 0; + } +} + +int +ivi_shell_init(struct ivi_compositor *ivi) +{ + weston_layer_init(&ivi->background, ivi->compositor); + weston_layer_init(&ivi->normal, ivi->compositor); + weston_layer_init(&ivi->panel, ivi->compositor); + weston_layer_init(&ivi->fullscreen, ivi->compositor); + + weston_layer_set_position(&ivi->background, + WESTON_LAYER_POSITION_BACKGROUND); + weston_layer_set_position(&ivi->normal, + WESTON_LAYER_POSITION_NORMAL); + weston_layer_set_position(&ivi->panel, + WESTON_LAYER_POSITION_UI); + weston_layer_set_position(&ivi->fullscreen, + WESTON_LAYER_POSITION_FULLSCREEN); + + return 0; +} + +static void +client_exec(const char *command, int fd) +{ + sigset_t sig; + char s[32]; + + /* Don't give the child our signal mask */ + sigfillset(&sig); + sigprocmask(SIG_UNBLOCK, &sig, NULL); + + /* Launch clients as the user; don't give them the wrong euid */ + if (seteuid(getuid()) == -1) { + weston_log("seteuid failed: %s\n", strerror(errno)); + return; + } + + /* Duplicate fd to unset the CLOEXEC flag. We don't need to worry about + * clobbering fd, as we'll exit/exec either way. + */ + fd = dup(fd); + if (fd == -1) { + weston_log("dup failed: %s\n", strerror(errno)); + return; + } + + snprintf(s, sizeof s, "%d", fd); + setenv("WAYLAND_SOCKET", s, 1); + + execl("/bin/sh", "/bin/sh", "-c", command, NULL); + weston_log("executing '%s' failed: %s", command, strerror(errno)); +} + +static struct wl_client * +launch_shell_client(struct ivi_compositor *ivi, const char *command) +{ + struct wl_client *client; + int sock[2]; + pid_t pid; + + weston_log("launching' %s'\n", command); + + if (os_socketpair_cloexec(AF_UNIX, SOCK_STREAM, 0, sock) < 0) { + weston_log("socketpair failed while launching '%s': %s\n", + command, strerror(errno)); + return NULL; + } + + pid = fork(); + if (pid == -1) { + close(sock[0]); + close(sock[1]); + weston_log("fork failed while launching '%s': %s\n", + command, strerror(errno)); + return NULL; + } + + if (pid == 0) { + client_exec(command, sock[1]); + _Exit(EXIT_FAILURE); + } + close(sock[1]); + + client = wl_client_create(ivi->compositor->wl_display, sock[0]); + if (!client) { + close(sock[0]); + weston_log("Failed to create wayland client for '%s'", + command); + return NULL; + } + + return client; +} + +int +ivi_launch_shell_client(struct ivi_compositor *ivi) +{ + struct weston_config_section *section; + char *command = NULL; + + section = weston_config_get_section(ivi->config, "shell-client", + NULL, NULL); + if (section) + weston_config_section_get_string(section, "command", + &command, NULL); + + if (!command) + return -1; + + ivi->shell_client.client = launch_shell_client(ivi, command); + if (!ivi->shell_client.client) + return -1; + + return 0; +} + +static void +shell_ready(struct wl_client *client, struct wl_resource *shell_res) +{ + struct ivi_compositor *ivi = wl_resource_get_user_data(shell_res); + struct ivi_output *output; + struct ivi_surface *surface, *tmp; + + /* Init already finished. Do nothing */ + if (ivi->shell_client.ready) + return; + + ivi->shell_client.ready = true; + /* TODO: Create a black screen and remove it here */ + + wl_list_for_each(output, &ivi->outputs, link) { + struct weston_desktop_surface *dsurf; + struct weston_geometry geom; + + output->area.x = 0; + output->area.y = 0; + output->area.width = output->output->width; + output->area.height = output->output->height; + + if (output->top) { + dsurf = output->top->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.y += geom.height; + output->area.height -= geom.height; + } + if (output->bottom) { + dsurf = output->bottom->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.height -= geom.height; + } + if (output->left) { + dsurf = output->left->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.x += geom.width; + output->area.width -= geom.width; + } + if (output->right) { + dsurf = output->right->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.width -= geom.width; + } + + weston_log("Usable area: %dx%d+%d,%d\n", + output->area.width, output->area.height, + output->area.x, output->area.y); + } + + wl_list_for_each_safe(surface, tmp, &ivi->pending_surfaces, link) { + wl_list_remove(&surface->link); + ivi_set_desktop_surface(surface); + } +} + +static void +shell_set_background(struct wl_client *client, + struct wl_resource *shell_res, + struct wl_resource *surface_res, + struct wl_resource *output_res) +{ + struct weston_head *head = weston_head_from_resource(output_res); + struct weston_output *woutput = weston_head_get_output(head); + struct ivi_output *output = to_ivi_output(woutput); + struct weston_surface *wsurface = wl_resource_get_user_data(surface_res); + struct weston_desktop_surface *dsurface; + struct ivi_surface *surface; + + dsurface = weston_surface_get_desktop_surface(wsurface); + if (!dsurface) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface must be a desktop surface"); + return; + } + + surface = weston_desktop_surface_get_user_data(dsurface); + if (surface->role != IVI_SURFACE_ROLE_NONE) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface already has another ivi role"); + return; + } + + if (output->background) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_BACKGROUND_EXISTS, + "output already has background"); + return; + } + + surface->role = IVI_SURFACE_ROLE_BACKGROUND; + surface->bg.output = output; + wl_list_remove(&surface->link); + wl_list_init(&surface->link); + + output->background = surface; + + weston_desktop_surface_set_maximized(dsurface, true); + weston_desktop_surface_set_size(dsurface, + output->output->width, + output->output->height); +} + +static void +shell_set_panel(struct wl_client *client, + struct wl_resource *shell_res, + struct wl_resource *surface_res, + struct wl_resource *output_res, + uint32_t edge) +{ + struct weston_head *head = weston_head_from_resource(output_res); + struct weston_output *woutput = weston_head_get_output(head); + struct ivi_output *output = to_ivi_output(woutput); + struct weston_surface *wsurface = wl_resource_get_user_data(surface_res); + struct weston_desktop_surface *dsurface; + struct ivi_surface *surface; + struct ivi_surface **member; + int32_t width = 0, height = 0; + + dsurface = weston_surface_get_desktop_surface(wsurface); + if (!dsurface) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface must be a desktop surface"); + return; + } + + surface = weston_desktop_surface_get_user_data(dsurface); + if (surface->role != IVI_SURFACE_ROLE_NONE) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface already has another ivi role"); + return; + } + + switch (edge) { + case AGL_SHELL_EDGE_TOP: + member = &output->top; + break; + case AGL_SHELL_EDGE_BOTTOM: + member = &output->bottom; + break; + case AGL_SHELL_EDGE_LEFT: + member = &output->left; + break; + case AGL_SHELL_EDGE_RIGHT: + member = &output->right; + break; + default: + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "invalid edge for panel"); + return; + } + + if (*member) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_BACKGROUND_EXISTS, + "output already has panel on this edge"); + return; + } + + surface->role = IVI_SURFACE_ROLE_PANEL; + surface->panel.output = output; + surface->panel.edge = edge; + wl_list_remove(&surface->link); + wl_list_init(&surface->link); + + *member = surface; + + switch (surface->panel.edge) { + case AGL_SHELL_EDGE_TOP: + case AGL_SHELL_EDGE_BOTTOM: + width = woutput->width; + break; + case AGL_SHELL_EDGE_LEFT: + case AGL_SHELL_EDGE_RIGHT: + height = woutput->height; + break; + } + + weston_desktop_surface_set_size(dsurface, width, height); +} + +static const struct agl_shell_interface agl_shell_implementation = { + .ready = shell_ready, + .set_background = shell_set_background, + .set_panel = shell_set_panel, +}; + +static void +unbind_agl_shell(struct wl_resource *resource) +{ +} + +static void +bind_agl_shell(struct wl_client *client, + void *data, uint32_t version, uint32_t id) +{ + struct ivi_compositor *ivi = data; + struct wl_resource *resource; + + resource = wl_resource_create(client, &agl_shell_interface, + 1, id); + if (!resource) { + wl_client_post_no_memory(client); + return; + } + +#if 0 + if (ivi->shell_client.client != client) { + wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT, + "client not authorized to use agl_shell"); + return; + } +#endif + + if (ivi->shell_client.resource) { + wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT, + "agl_shell has already been bound"); + return; + } + + wl_resource_set_implementation(resource, &agl_shell_implementation, + ivi, unbind_agl_shell); + ivi->shell_client.resource = resource; +} + +int +ivi_shell_create_global(struct ivi_compositor *ivi) +{ + ivi->agl_shell = wl_global_create(ivi->compositor->wl_display, + &agl_shell_interface, 1, + ivi, bind_agl_shell); + if (!ivi->agl_shell) { + weston_log("Failed to create wayland global.\n"); + return -1; + } + + return 0; +}