Implement modes

5 files changed, 74 insertions, 2 deletions

diff --git a/include/sway/ipc-server.h b/include/sway/ipc-server.h
index 1f6fffff..b4db75c3 100644
--- a/include/sway/ipc-server.h
+++ b/include/sway/ipc-server.h
@@ -13,5 +13,6 @@ struct sockaddr_un *ipc_user_sockaddr(void);
 void ipc_event_workspace(swayc_t *old, swayc_t *new, const char *change);
 void ipc_event_window(swayc_t *window, const char *change);
 void ipc_event_barconfig_update(struct bar_config *bar);
+void ipc_event_mode(const char *mode);
 
 #endif
diff --git a/sway/commands.c b/sway/commands.c
index 38e2f764..bcc777ed 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -100,6 +100,7 @@ static struct cmd_handler handlers[] = {
         { "exec_always", cmd_exec_always },
         { "include", cmd_include },
         { "input", cmd_input },
+        { "mode", cmd_mode },
         { "output", cmd_output },
         { "seat", cmd_seat },
         { "workspace", cmd_workspace },
diff --git a/sway/commands/mode.c b/sway/commands/mode.c
new file mode 100644
index 00000000..c30a8bac
--- /dev/null
+++ b/sway/commands/mode.c
@@ -0,0 +1,59 @@
+#define _XOPEN_SOURCE 500
+#include <stdbool.h>
+#include <string.h>
+#include <strings.h>
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "sway/ipc-server.h"
+#include "list.h"
+#include "log.h"
+
+struct cmd_results *cmd_mode(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if ((error = checkarg(argc, "mode", EXPECTED_AT_LEAST, 1))) {
+                return error;
+        }
+
+        const char *mode_name = argv[0];
+        bool new_mode = (argc == 2 && strcmp(argv[1], "{") == 0);
+        if (new_mode && !config->reading) {
+                return cmd_results_new(CMD_FAILURE,
+                                "mode", "Can only be used in config file.");
+        }
+        struct sway_mode *mode = NULL;
+        // Find mode
+        for (int i = 0; i < config->modes->length; ++i) {
+                struct sway_mode *test = config->modes->items[i];
+                if (strcasecmp(test->name, mode_name) == 0) {
+                        mode = test;
+                        break;
+                }
+        }
+        // Create mode if it doesn't exist
+        if (!mode && new_mode) {
+                mode = calloc(1, sizeof(struct sway_mode));
+                if (!mode) {
+                        return cmd_results_new(CMD_FAILURE,
+                                        "mode", "Unable to allocate mode");
+                }
+                mode->name = strdup(mode_name);
+                mode->keysym_bindings = create_list();
+                mode->keycode_bindings = create_list();
+                list_add(config->modes, mode);
+        }
+        if (!mode) {
+                error = cmd_results_new(CMD_INVALID,
+                                "mode", "Unknown mode `%s'", mode_name);
+                return error;
+        }
+        if ((config->reading && new_mode) || (!config->reading && !new_mode)) {
+                wlr_log(L_DEBUG, "Switching to mode `%s'",mode->name);
+        }
+        // Set current mode
+        config->current_mode = mode;
+        if (!new_mode) {
+                // trigger IPC mode event
+                ipc_event_mode(config->current_mode->name);
+        }
+        return cmd_results_new(new_mode ? CMD_BLOCK_MODE : CMD_SUCCESS, NULL, NULL);
+}
diff --git a/sway/ipc-server.c b/sway/ipc-server.c
index 8250b3a0..c3b589a6 100644
--- a/sway/ipc-server.c
+++ b/sway/ipc-server.c
@@ -290,7 +290,7 @@ void ipc_event_window(swayc_t *window, const char *change) {
 
         const char *json_string = json_object_to_json_string(obj);
         ipc_send_event(json_string, IPC_EVENT_WINDOW);
-        json_object_put(obj); // free
+        json_object_put(obj);
 }
 
 void ipc_event_barconfig_update(struct bar_config *bar) {
@@ -299,7 +299,17 @@ void ipc_event_barconfig_update(struct bar_config *bar) {
 
         const char *json_string = json_object_to_json_string(json);
         ipc_send_event(json_string, IPC_EVENT_BARCONFIG_UPDATE);
-        json_object_put(json); // free
+        json_object_put(json);
+}
+
+void ipc_event_mode(const char *mode) {
+        wlr_log(L_DEBUG, "Sending mode::%s event", mode);
+        json_object *obj = json_object_new_object();
+        json_object_object_add(obj, "change", json_object_new_string(mode));
+
+        const char *json_string = json_object_to_json_string(obj);
+        ipc_send_event(json_string, IPC_EVENT_MODE);
+        json_object_put(obj);
 }
 
 int ipc_client_handle_writable(int client_fd, uint32_t mask, void *data) {
diff --git a/sway/meson.build b/sway/meson.build
index 54c03061..1e7ee7ae 100644
--- a/sway/meson.build
+++ b/sway/meson.build
@@ -16,6 +16,7 @@ sway_sources = files(
         'commands/include.c',
         'commands/input.c',
         'commands/layout.c',
+        'commands/mode.c',
         'commands/seat.c',
         'commands/seat/attach.c',
         'commands/seat/fallback.c',