Add plugin hooks and mode plugins

1 files changed, 107 insertions, 0 deletions

diff --git a/config/which_key_plugin.c b/config/which_key_plugin.c
new file mode 100644
index 0000000..8d4fb50
--- /dev/null
+++ b/config/which_key_plugin.c
@@ -0,0 +1,107 @@
+#include "ecex.h"
+
+#define WK_HOOK_NAME "which-key"
+#define WK_SLOT_ENABLED "enabled"
+
+typedef struct which_key_state {
+    ecex_plugin_t *plugin;
+    int showing;
+} which_key_state_t;
+
+static int which_key_enabled(ecex_plugin_t *plugin) {
+    return ecex_plugin_slot_i32_get_scalar(plugin, WK_SLOT_ENABLED, 1) != 0;
+}
+
+static int cmd_which_key_toggle(ecex_t *ed) {
+    ecex_plugin_t *plugin = ecex_plugin_find(ed, "which-key");
+    if (!plugin) return -1;
+
+    int enabled = !which_key_enabled(plugin);
+    ecex_plugin_slot_i32_set_scalar(plugin, WK_SLOT_ENABLED, enabled);
+    ecex_message(ed, enabled ? "which-key enabled" : "which-key disabled");
+    return 0;
+}
+
+static void which_key_prefix_hook(ecex_t *ed, const char *prefix, int event, void *userdata) {
+    which_key_state_t *state = (which_key_state_t *)userdata;
+    char line[1024];
+
+    if (!ed || !state || !state->plugin) return;
+    if (!which_key_enabled(state->plugin)) {
+        if (state->showing) ecex_message(ed, "");
+        state->showing = 0;
+        return;
+    }
+
+    if (event == ECEX_PREFIX_HOOK_CANCEL ||
+        event == ECEX_PREFIX_HOOK_FINISH ||
+        event == ECEX_PREFIX_HOOK_UNDEFINED) {
+        if (state->showing) ecex_message(ed, "");
+        state->showing = 0;
+        return;
+    }
+
+    if (event != ECEX_PREFIX_HOOK_BEGIN && event != ECEX_PREFIX_HOOK_UPDATE) {
+        return;
+    }
+
+    if (ecex_describe_key_prefix(ed, ecex_current_buffer(ed), prefix, line, sizeof(line), 24) >= 0) {
+        ecex_message(ed, line);
+        state->showing = 1;
+    }
+}
+
+static void which_key_command_hook(ecex_t *ed,
+                                   const char *command,
+                                   int event,
+                                   int result,
+                                   void *userdata) {
+    (void)command;
+    (void)result;
+
+    which_key_state_t *state = (which_key_state_t *)userdata;
+    if (event == ECEX_COMMAND_HOOK_AFTER && state && state->showing) {
+        ecex_plugin_t *plugin = state->plugin ? state->plugin : ecex_plugin_find(ed, "which-key");
+        if (plugin) {
+            ecex_message(ed, "");
+            state->showing = 0;
+        }
+    }
+}
+
+static void which_key_free(void *userdata) {
+    which_key_state_t *state = (which_key_state_t *)userdata;
+    if (!state) return;
+    ecex_plugin_object_free(state->plugin, state);
+}
+
+ECEX_PLUGIN_BEGIN(ecex_which_key_plugin, "which-key")
+    if (ecex_plugin_slot_i32_get_scalar(plugin, WK_SLOT_ENABLED, -1) < 0) {
+        ecex_plugin_slot_i32_set_scalar(plugin, WK_SLOT_ENABLED, 1);
+    }
+
+    ECEX_CONFIG_COMMAND("which-key-toggle", cmd_which_key_toggle);
+
+    which_key_state_t *state = ecex_plugin_object_calloc(plugin, "state", 1, sizeof(*state));
+    if (!state) return -1;
+    state->plugin = plugin;
+
+    if (ecex_add_command_hook(ed, WK_HOOK_NAME, which_key_command_hook, state, 0) != 0) {
+        ecex_plugin_object_free(plugin, state);
+        return -1;
+    }
+
+    if (ecex_add_prefix_hook(ed, WK_HOOK_NAME, which_key_prefix_hook, state, which_key_free) != 0) {
+        ecex_remove_command_hook(ed, WK_HOOK_NAME);
+        ecex_plugin_object_free(plugin, state);
+        return -1;
+    }
+
+    return 0;
+ECEX_PLUGIN_END
+
+#ifndef ECEX_NO_STANDALONE_CONFIG
+ECEX_CONFIG_BEGIN
+    ECEX_CONFIG_INCLUDE(ecex_which_key_plugin);
+ECEX_CONFIG_END
+#endif