From cddfed13d0847bc62474fd3fadbafba834856ac7 Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike.lowis@gentex.com>
Date: Thu, 10 Aug 2017 16:26:51 -0400
Subject: [PATCH] added property getters and setters and auto-set property with
 file path of file in given window

---
 inc/x11.h |  3 +++
 lib/win.c |  3 +++
 lib/x11.c | 16 +++++++++++++++-
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/inc/x11.h b/inc/x11.h
index 3279b8c..dd820ba 100644
--- a/inc/x11.h
+++ b/inc/x11.h
@@ -147,3 +147,6 @@ void x11_draw_utf8(XFont font, int fg, int bg, int x, int y, char* str);
 
 bool x11_sel_get(int selid, void(*cbfn)(char*));
 bool x11_sel_set(int selid, char* str);
+
+void x11_prop_set(char* name, char* val);
+char* x11_prop_get(char* name);
diff --git a/lib/win.c b/lib/win.c
index 96779fa..cc63663 100644
--- a/lib/win.c
+++ b/lib/win.c
@@ -68,6 +68,8 @@ static void win_update(int xfd, void* data) {
 void win_load(char* path) {
     View* view = win_view(EDIT);
     view_init(view, path, view->buffer.errfn);
+    if (path)
+        x11_prop_set("TIDE_FILE", path);
 }
 
 void win_save(char* path) {
@@ -78,6 +80,7 @@ void win_save(char* path) {
     free(view->buffer.path);
     view->buffer.path = path;
     buf_save(&(view->buffer));
+    x11_prop_set("TIDE_FILE", path);
 }
 
 void win_loop(void) {
diff --git a/lib/x11.c b/lib/x11.c
index c089a96..e184b83 100644
--- a/lib/x11.c
+++ b/lib/x11.c
@@ -638,7 +638,21 @@ bool x11_sel_set(int selid, char* str) {
     }
 }
 
-/* Tide Server Communication
+/* Tide Server Communication and Property Handling
  *****************************************************************************/
 static void propnotify(XEvent* evnt) {
 }
+
+void x11_prop_set(char* name, char* val) {
+    Atom prop = XInternAtom(X.display, name, False);
+    XChangeProperty(X.display, X.self, prop, XA_STRING, 8, PropModeReplace, val, strlen(val)+1);
+}
+
+char* x11_prop_get(char* name) {
+    Atom rtype, prop = XInternAtom(X.display, name, False);
+    unsigned long format = 0, nitems = 0, nleft = 0, nread = 0;
+    unsigned char* data = NULL;
+    XGetWindowProperty(X.display, X.self, prop, 0, -1, False, XA_STRING, &rtype,
+                       &format, &nitems, &nleft, &data);
+    return data;
+}
-- 
2.49.0