Factor out binding command execution to separate file

1 files changed, 109 insertions, 0 deletions

diff --git a/rootston/bindings.c b/rootston/bindings.c
new file mode 100644
index 00000000..d9813cbc
--- /dev/null
+++ b/rootston/bindings.c
@@ -0,0 +1,109 @@
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <wlr/util/log.h>
+
+#include "rootston/bindings.h"
+
+static bool outputs_enabled = true;
+
+static const char *exec_prefix = "exec ";
+
+static void double_fork_shell_cmd(const char *shell_cmd) {
+    pid_t pid = fork();
+    if (pid < 0) {
+        wlr_log(WLR_ERROR, "cannot execute binding command: fork() failed");
+        return;
+    }
+
+    if (pid == 0) {
+        pid = fork();
+        if (pid == 0) {
+            execl("/bin/sh", "/bin/sh", "-c", shell_cmd, NULL);
+            _exit(EXIT_FAILURE);
+        } else {
+            _exit(pid == -1);
+        }
+    }
+
+    int status;
+    while (waitpid(pid, &status, 0) < 0) {
+        if (errno == EINTR) {
+            continue;
+        }
+        wlr_log_errno(WLR_ERROR, "waitpid() on first child failed");
+        return;
+    }
+
+    if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
+        return;
+    }
+
+    wlr_log(WLR_ERROR, "first child failed to fork command");
+}
+
+void execute_binding_command (struct roots_seat *seat, struct roots_input *input, const char *command) {
+    if (strcmp(command, "exit") == 0) {
+        wl_display_terminate(input->server->wl_display);
+    } else if (strcmp(command, "close") == 0) {
+        struct roots_view *focus = roots_seat_get_focus(seat);
+        if (focus != NULL) {
+            view_close(focus);
+        }
+    } else if (strcmp(command, "fullscreen") == 0) {
+        struct roots_view *focus = roots_seat_get_focus(seat);
+        if (focus != NULL) {
+            bool is_fullscreen = focus->fullscreen_output != NULL;
+            view_set_fullscreen(focus, !is_fullscreen, NULL);
+        }
+    } else if (strcmp(command, "next_window") == 0) {
+        roots_seat_cycle_focus(seat);
+    } else if (strcmp(command, "alpha") == 0) {
+        struct roots_view *focus = roots_seat_get_focus(seat);
+        if (focus != NULL) {
+            view_cycle_alpha(focus);
+        }
+    } else if (strncmp(exec_prefix, command, strlen(exec_prefix)) == 0) {
+        const char *shell_cmd = command + strlen(exec_prefix);
+        double_fork_shell_cmd(shell_cmd);
+    } else if (strcmp(command, "maximize") == 0) {
+        struct roots_view *focus = roots_seat_get_focus(seat);
+        if (focus != NULL) {
+            view_maximize(focus, !focus->maximized);
+        }
+    } else if (strcmp(command, "nop") == 0) {
+        wlr_log(WLR_DEBUG, "nop command");
+    } else if (strcmp(command, "toggle_outputs") == 0) {
+        outputs_enabled = !outputs_enabled;
+        struct roots_output *output;
+        wl_list_for_each(output, &input->server->desktop->outputs, link) {
+            wlr_output_enable(output->wlr_output, outputs_enabled);
+        }
+    } else if (strcmp(command, "toggle_decoration_mode") == 0) {
+        struct roots_view *focus = roots_seat_get_focus(seat);
+        if (focus != NULL && focus->type == ROOTS_XDG_SHELL_VIEW) {
+            struct roots_xdg_toplevel_decoration *decoration =
+                focus->roots_xdg_surface->xdg_toplevel_decoration;
+            if (decoration != NULL) {
+                enum wlr_xdg_toplevel_decoration_v1_mode mode =
+                    decoration->wlr_decoration->current_mode;
+                mode = mode == WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE
+                    ? WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE
+                    : WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE;
+                wlr_xdg_toplevel_decoration_v1_set_mode(
+                    decoration->wlr_decoration, mode);
+            }
+        }
+    } else if (strcmp(command, "break_pointer_constraint") == 0) {
+        struct wl_list *list =
+            &input->seats;
+        struct roots_seat *seat;
+        wl_list_for_each(seat, list, link) {
+            roots_cursor_constrain(seat->cursor, NULL, NAN, NAN);
+        }
+    } else {
+        wlr_log(WLR_ERROR, "unknown binding command: %s", command);
+    }
+}