mirror of https://github.com/swaywm/sway.git
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <strings.h>
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#include "sway/commands.h"
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#include "sway/tree/view.h"
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#include "log.h"
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struct cmd_results *cmd_opacity(int argc, char **argv) {
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struct cmd_results *error = NULL;
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if ((error = checkarg(argc, "opacity", EXPECTED_AT_LEAST, 1))) {
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return error;
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}
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struct sway_container *con = config->handler_context.container;
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if (con == NULL) {
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return cmd_results_new(CMD_FAILURE, "No current container");
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}
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char *err;
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float val = strtof(argc == 1 ? argv[0] : argv[1], &err);
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if (*err) {
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return cmd_results_new(CMD_INVALID, "opacity float invalid");
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}
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if (!strcasecmp(argv[0], "plus")) {
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val = con->alpha + val;
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} else if (!strcasecmp(argv[0], "minus")) {
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val = con->alpha - val;
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} else if (argc > 1 && strcasecmp(argv[0], "set")) {
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return cmd_results_new(CMD_INVALID,
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"Expected: set|plus|minus <0..1>: %s", argv[0]);
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}
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if (val < 0 || val > 1) {
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return cmd_results_new(CMD_FAILURE, "opacity value out of bounds");
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}
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con->alpha = val;
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container_update(con);
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return cmd_results_new(CMD_SUCCESS, NULL);
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}
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