From abb7c03c75500e8161de5b0a485beeb8cc84ffa8 Mon Sep 17 00:00:00 2001
From: Consus <consus@ftml.net>
Date: Mon, 28 Aug 2023 18:55:29 +0300
Subject: [PATCH] view: introduce view_matches_query()

Add new function view_matches_query() that will be required by If and
ForEach actions in the future.
---
 include/view.h | 22 ++++++++++++++++++++++
 src/view.c     | 31 +++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)

diff --git a/include/view.h b/include/view.h
index 4a408a84..7046c115 100644
--- a/include/view.h
+++ b/include/view.h
@@ -172,6 +172,12 @@ struct view {
 	struct wl_listener set_title;
 };
 
+struct view_query {
+	struct wl_list link;
+	char *identifier;
+	char *title;
+};
+
 struct xdg_toplevel_view {
 	struct view base;
 	struct wlr_xdg_surface *xdg_surface;
@@ -194,6 +200,22 @@ enum lab_view_criteria {
  */
 struct view *view_from_wlr_surface(struct wlr_surface *surface);
 
+/**
+ * view_query_free() - Free a given view query
+ * @query: Query to be freed.
+ */
+void view_query_free(struct view_query *view);
+
+/**
+ * view_matches_query() - Check if view matches the given criteria
+ * @view: View to checked.
+ * @query: Criteria to match against.
+ *
+ * Returns true if %view matches all of the criteria given in %query, false
+ * otherwise.
+ */
+bool view_matches_query(struct view *view, struct view_query *query);
+
 /**
  * for_each_view() - iterate over all views which match criteria
  * @view: Iterator.
diff --git a/src/view.c b/src/view.c
index 743c9290..6185d917 100644
--- a/src/view.c
+++ b/src/view.c
@@ -2,6 +2,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <strings.h>
+#include "common/match.h"
 #include "common/mem.h"
 #include "common/scene-helpers.h"
 #include "labwc.h"
@@ -51,6 +52,36 @@ view_from_wlr_surface(struct wlr_surface *surface)
 	return NULL;
 }
 
+void
+view_query_free(struct view_query *query)
+{
+	wl_list_remove(&query->link);
+	free(query->identifier);
+	free(query->title);
+	free(query);
+}
+
+bool
+view_matches_query(struct view *view, struct view_query *query)
+{
+	bool match = true;
+	bool empty = true;
+
+	const char *identifier = view_get_string_prop(view, "app_id");
+	if (match && query->identifier) {
+		empty = false;
+		match &= match_glob(query->identifier, identifier);
+	}
+
+	const char *title = view_get_string_prop(view, "title");
+	if (match && query->title) {
+		empty = false;
+		match &= match_glob(query->title, title);
+	}
+
+	return !empty && match;
+}
+
 static bool
 matches_criteria(struct view *view, enum lab_view_criteria criteria)
 {