From 56f8380028b9106bbfec004b97a1b667f61f6aba Mon Sep 17 00:00:00 2001
From: Zedhugh Chen <zedhugh@gmail.com>
Date: Thu, 7 May 2026 03:21:27 +0800
Subject: [PATCH] =?UTF-8?q?feat(action):=20=E5=AE=9E=E7=8E=B0=20switch=5Fw?=
 =?UTF-8?q?orkspace=20cycle=5Flayout=20=E5=92=8C=20cycle=5Foutput=20?=
 =?UTF-8?q?=E6=93=8D=E4=BD=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/core/action.c | 26 ++++++++++++++++++++++++++
 src/core/state.c  | 23 +++++++++++++++++------
 src/core/state.h  |  6 +++++-
 3 files changed, 48 insertions(+), 7 deletions(-)

diff --git a/src/core/action.c b/src/core/action.c
index fa3a1a3..111c4a5 100644
--- a/src/core/action.c
+++ b/src/core/action.c
@@ -2,6 +2,7 @@
 
 #include <paths.h>
 #include <stddef.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ -151,3 +152,28 @@ void toggle_sticky(runtime_t *runtime) {
   };
   command_buffer_push(&runtime->command_buffer, &window_set_sticky_cmd);
 }
+
+void switch_workspace(runtime_t *runtime, workspace_id_t workspace_id) {
+  auto workspace = state_workspace_get(&runtime->state, workspace_id);
+  if (!workspace) return;
+
+  command_t switch_workspace_cmd = {
+    .type                          = ZDWM_COMMAND_SWITCH_WORKSPACE,
+    .as.switch_workspace.workspace = workspace_id
+  };
+  command_buffer_push(&runtime->command_buffer, &switch_workspace_cmd);
+}
+
+void cycle_layout(runtime_t *runtime, int32_t delta) {
+  auto state     = &runtime->state;
+  auto output    = state_output_at(state, state->current_output_index);
+  auto workspace = state_workspace_get(state, output->current_workspace_id);
+  if (!state_workspace_cycle_layout(state, workspace->id, delta)) return;
+
+  runtime->plan.need_relayout = true;
+}
+
+void cycle_current_output(zdwm_runtime_t *runtime, int32_t delta) {
+  auto state = &runtime->state;
+  state_cycle_current_output(state, delta);
+}
diff --git a/src/core/state.c b/src/core/state.c
index 532940c..ab37056 100644
--- a/src/core/state.c
+++ b/src/core/state.c
@@ -145,24 +145,35 @@ static void state_workspace_adjust_focused_window(
   workspace->focused_window_id = ZDWM_WINDOW_ID_INVALID;
 }
 
-bool state_workspace_cycle_layout(state_t *state, workspace_id_t workspace_id) {
+bool state_workspace_cycle_layout(
+  state_t *state,
+  workspace_id_t workspace_id,
+  int32_t delta
+) {
   workspace_t *workspace =
     (workspace_t *)state_workspace_get(state, workspace_id);
   if (!workspace) return false;
 
-  size_t next_index = 0;
+  int32_t index     = 0;
   bool matched      = false;
-  for (size_t i = 0; i < workspace->layout_count; i++) {
+  auto layout_count = (int32_t)workspace->layout_count;
+  for (int32_t i = 0; i < layout_count; i++) {
     if (workspace->layout_id == workspace->available_layouts[i]) {
-      next_index = (i + 1) % workspace->layout_count;
-      matched    = true;
+      index   = i;
+      matched = true;
       break;
     }
   }
 
   if (!matched) return false;
 
-  auto next_layout_id  = workspace->available_layouts[next_index];
+  auto new_index  = index + delta;
+  new_index      %= layout_count;
+  if (new_index < 0) new_index += layout_count;
+
+  if (new_index == index) return false;
+
+  auto next_layout_id  = workspace->available_layouts[new_index];
   workspace->layout_id = next_layout_id;
   return true;
 }
diff --git a/src/core/state.h b/src/core/state.h
index 6dc17de..4ed76dd 100644
--- a/src/core/state.h
+++ b/src/core/state.h
@@ -81,7 +81,11 @@ void state_cleanup(state_t *state);
  */
 const workspace_t *state_workspace_get(const state_t *state, workspace_id_t id);
 const workspace_t *state_workspace_at(const state_t *state, size_t index);
-bool state_workspace_cycle_layout(state_t *state, workspace_id_t workspace_id);
+bool state_workspace_cycle_layout(
+  state_t *state,
+  workspace_id_t workspace_id,
+  int32_t delta
+);
 bool state_workspace_set_layout_by_index(
   state_t *state,
   workspace_id_t workspace_id,