Merge branch 'text-input-cleanup-commits' into 'master'

text-input-v3: drop enable/disable events

Closes #3806

See merge request wlroots/wlroots!5073

include/wlr/types/wlr_text_input_v3.h

@@ -21,6 +21,16 @@ enum wlr_text_input_v3_features {
 	WLR_TEXT_INPUT_V3_FEATURE_CURSOR_RECTANGLE = 1 << 2,
 };
 
+enum wlr_text_input_v3_commit_type {
+        WLR_TEXT_INPUT_V3_COMMIT_TYPE_NONE = 0,
+        WLR_TEXT_INPUT_V3_COMMIT_TYPE_ENABLE,
+        WLR_TEXT_INPUT_V3_COMMIT_TYPE_DISABLE,
+};
+
+struct wlr_text_input_v3_commit_event {
+        enum wlr_text_input_v3_commit_type type;
+};
+
 struct wlr_text_input_v3_state {
 	struct {
 		char *text; // NULL is allowed and equivalent to empty string
@@ -49,17 +59,15 @@ struct wlr_text_input_v3 {
 	struct wlr_text_input_v3_state pending;
 	struct wlr_text_input_v3_state current;
 	uint32_t current_serial; // next in line to send
-	bool pending_enabled;
-	bool current_enabled;
+        enum wlr_text_input_v3_commit_type next_commit_type;
+	bool enabled;
 	// supported in the current text input, more granular than surface
 	uint32_t active_features; // bitfield of enum wlr_text_input_v3_features
 
 	struct wl_list link;
 
 	struct {
-		struct wl_signal enable;
-		struct wl_signal commit;
-		struct wl_signal disable;
+		struct wl_signal commit; // struct wlr_text_input_v3_commit_event
 		struct wl_signal destroy;
 	} events;
 

include/xwayland/xwm.h

@@ -164,6 +164,7 @@ struct wlr_xwm {
 	struct wl_listener drop_focus_destroy;
 };
 
+// xwm_create takes ownership of wm_fd and will close it under all circumstances.
 struct wlr_xwm *xwm_create(struct wlr_xwayland *wlr_xwayland, int wm_fd);
 
 void xwm_destroy(struct wlr_xwm *xwm);

types/wlr_text_input_v3.c

@@ -66,9 +66,7 @@ void wlr_text_input_v3_send_done(struct wlr_text_input_v3 *text_input) {
 static void wlr_text_input_destroy(struct wlr_text_input_v3 *text_input) {
 	wl_signal_emit_mutable(&text_input->events.destroy, NULL);
 
-	assert(wl_list_empty(&text_input->events.enable.listener_list));
 	assert(wl_list_empty(&text_input->events.commit.listener_list));
-	assert(wl_list_empty(&text_input->events.disable.listener_list));
 	assert(wl_list_empty(&text_input->events.destroy.listener_list));
 
 	text_input_clear_focused_surface(text_input);
@@ -102,7 +100,7 @@ static void text_input_enable(struct wl_client *client,
 	struct wlr_text_input_v3_state defaults = {0};
 	free(text_input->pending.surrounding.text);
 	text_input->pending = defaults;
-	text_input->pending_enabled = true;
+        text_input->next_commit_type = WLR_TEXT_INPUT_V3_COMMIT_TYPE_ENABLE;
 }
 
 static void text_input_disable(struct wl_client *client,
@@ -111,7 +109,7 @@ static void text_input_disable(struct wl_client *client,
 	if (!text_input) {
 		return;
 	}
-	text_input->pending_enabled = false;
+        text_input->next_commit_type = WLR_TEXT_INPUT_V3_COMMIT_TYPE_DISABLE;
 }
 
 static void text_input_set_surrounding_text(struct wl_client *client,
@@ -182,23 +180,27 @@ static void text_input_commit(struct wl_client *client,
 		}
 	}
 
-	bool old_enabled = text_input->current_enabled;
-	text_input->current_enabled = text_input->pending_enabled;
 	text_input->current_serial++;
 
 	if (text_input->focused_surface == NULL) {
 		wlr_log(WLR_DEBUG, "Text input commit received without focus");
 	}
 
-	if (!old_enabled && text_input->current_enabled) {
+        enum wlr_text_input_v3_commit_type commit_type = text_input->next_commit_type;
+        text_input->next_commit_type = WLR_TEXT_INPUT_V3_COMMIT_TYPE_NONE;
+
+        if (commit_type == WLR_TEXT_INPUT_V3_COMMIT_TYPE_ENABLE) {
 	        text_input->active_features = text_input->current.features;
-		wl_signal_emit_mutable(&text_input->events.enable, NULL);
-	} else if (old_enabled && !text_input->current_enabled) {
+                text_input->enabled = true;
+        } else if (commit_type == WLR_TEXT_INPUT_V3_COMMIT_TYPE_DISABLE) {
 	        text_input->active_features = 0;
-		wl_signal_emit_mutable(&text_input->events.disable, NULL);
-	} else { // including never enabled
-		wl_signal_emit_mutable(&text_input->events.commit, NULL);
+                text_input->enabled = false;
         }
+
+        struct wlr_text_input_v3_commit_event event = {
+                .type = commit_type,
+        };
+	wl_signal_emit_mutable(&text_input->events.commit, &event);
 }
 
 static const struct zwp_text_input_v3_interface text_input_impl = {
@@ -265,9 +267,7 @@ static void text_input_manager_get_text_input(struct wl_client *client,
 		return;
 	}
 
-	wl_signal_init(&text_input->events.enable);
 	wl_signal_init(&text_input->events.commit);
-	wl_signal_init(&text_input->events.disable);
 	wl_signal_init(&text_input->events.destroy);
 
 	text_input->resource = text_input_resource;

xwayland/xwayland.c

@@ -42,6 +42,9 @@ static void handle_server_start(struct wl_listener *listener, void *data) {
 static void xwayland_mark_ready(struct wlr_xwayland *xwayland) {
 	assert(xwayland->server->wm_fd[0] >= 0);
 	xwayland->xwm = xwm_create(xwayland, xwayland->server->wm_fd[0]);
+	// xwm_create takes ownership of wm_fd[0] under all circumstances
+	xwayland->server->wm_fd[0] = -1;
+
 	if (!xwayland->xwm) {
 		return;
 	}

xwayland/xwm.c

@@ -2530,6 +2530,7 @@ void xwm_set_cursor(struct wlr_xwm *xwm, const uint8_t *pixels, uint32_t stride,
 struct wlr_xwm *xwm_create(struct wlr_xwayland *xwayland, int wm_fd) {
 	struct wlr_xwm *xwm = calloc(1, sizeof(*xwm));
 	if (xwm == NULL) {
+		close(wm_fd);
 		return NULL;
 	}
 
@@ -2544,11 +2545,13 @@ struct wlr_xwm *xwm_create(struct wlr_xwayland *xwayland, int wm_fd) {
 
 	xwm->ping_timeout = 10000;
 
+	// xcb_connect_to_fd takes ownership of the FD regardless of success/failure
 	xwm->xcb_conn = xcb_connect_to_fd(wm_fd, NULL);
 
 	int rc = xcb_connection_has_error(xwm->xcb_conn);
 	if (rc) {
 		wlr_log(WLR_ERROR, "xcb connect failed: %d", rc);
+		xcb_disconnect(xwm->xcb_conn);
 		free(xwm);
 		return NULL;
 	}