refactor commands.c

1 files changed, 122 insertions, 0 deletions

diff --git a/sway/commands/resize.c b/sway/commands/resize.c
new file mode 100644
index 00000000..b5585920
--- /dev/null
+++ b/sway/commands/resize.c
@@ -0,0 +1,122 @@
+#include <errno.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include "commands.h"
+#include "log.h"
+#include "resize.h"
+
+static struct cmd_results *cmd_resize_set(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if ((error = checkarg(argc, "resize set", EXPECTED_AT_LEAST, 2))) {
+                return error;
+        }
+
+        if (strcasecmp(argv[0], "width") == 0 || strcasecmp(argv[0], "height") == 0) {
+                // handle `reset set width 100 px height 100 px` syntax, also allows
+                // specifying only one dimension for a `resize set`
+                int cmd_num = 0;
+                int dim;
+
+                while ((cmd_num + 1) < argc) {
+                        dim = (int)strtol(argv[cmd_num + 1], NULL, 10);
+                        if (errno == ERANGE || dim == 0) {
+                                errno = 0;
+                                return cmd_results_new(CMD_INVALID, "resize set",
+                                        "Expected 'resize set <width|height> <amount> [px] [<width|height> <amount> [px]]'");
+                        }
+
+                        if (strcasecmp(argv[cmd_num], "width") == 0) {
+                                set_size(dim, true);
+                        } else if (strcasecmp(argv[cmd_num], "height") == 0) {
+                                set_size(dim, false);
+                        } else {
+                                return cmd_results_new(CMD_INVALID, "resize set",
+                                        "Expected 'resize set <width|height> <amount> [px] [<width|height> <amount> [px]]'");
+                        }
+
+                        cmd_num += 2;
+
+                        if (cmd_num < argc && strcasecmp(argv[cmd_num], "px") == 0) {
+                                // if this was `resize set width 400 px height 300 px`, disregard the `px` arg
+                                cmd_num++;
+                        }
+                }
+        } else {
+                // handle `reset set 100 px 100 px` syntax
+                int width = (int)strtol(argv[0], NULL, 10);
+                if (errno == ERANGE || width == 0) {
+                        errno = 0;
+                        return cmd_results_new(CMD_INVALID, "resize set",
+                                "Expected 'resize set <width> [px] <height> [px]'");
+                }
+
+                int height_arg = 1;
+                if (strcasecmp(argv[1], "px") == 0) {
+                        height_arg = 2;
+                }
+
+                int height = (int)strtol(argv[height_arg], NULL, 10);
+                if (errno == ERANGE || height == 0) {
+                        errno = 0;
+                        return cmd_results_new(CMD_INVALID, "resize set",
+                                "Expected 'resize set <width> [px] <height> [px]'");
+                }
+
+                set_size(width, true);
+                set_size(height, false);
+        }
+
+        return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+struct cmd_results *cmd_resize(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if (config->reading) return cmd_results_new(CMD_FAILURE, "resize", "Can't be used in config file.");
+        if (!config->active) return cmd_results_new(CMD_FAILURE, "resize", "Can only be used when sway is running.");
+
+        if (strcasecmp(argv[0], "set") == 0) {
+                return cmd_resize_set(argc - 1, &argv[1]);
+        }
+
+        if ((error = checkarg(argc, "resize", EXPECTED_AT_LEAST, 2))) {
+                return error;
+        }
+
+        int dim_arg = argc - 1;
+
+        enum resize_dim_types dim_type = RESIZE_DIM_DEFAULT;
+        if (strcasecmp(argv[dim_arg], "ppt") == 0) {
+                dim_type = RESIZE_DIM_PPT;
+                dim_arg--;
+        } else if (strcasecmp(argv[dim_arg], "px") == 0) {
+                dim_type = RESIZE_DIM_PX;
+                dim_arg--;
+        }
+
+        int amount = (int)strtol(argv[dim_arg], NULL, 10);
+        if (errno == ERANGE || amount == 0) {
+                errno = 0;
+                amount = 10; // this is the default resize dimension used by i3 for both px and ppt
+                sway_log(L_DEBUG, "Tried to get resize dimension out of '%s' but failed; setting dimension to default %d",
+                        argv[dim_arg], amount);
+        }
+
+        bool use_width = false;
+        if (strcasecmp(argv[1], "width") == 0) {
+                use_width = true;
+        } else if (strcasecmp(argv[1], "height") != 0) {
+                return cmd_results_new(CMD_INVALID, "resize",
+                        "Expected 'resize <shrink|grow> <width|height> [<amount>] [px|ppt]'");
+        }
+
+        if (strcasecmp(argv[0], "shrink") == 0) {
+                amount *= -1;
+        } else if (strcasecmp(argv[0], "grow") != 0) {
+                return cmd_results_new(CMD_INVALID, "resize",
+                        "Expected 'resize <shrink|grow> <width|height> [<amount>] [px|ppt]'");
+        }
+
+        resize(amount, use_width, dim_type);
+        return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}