From c1a3cc79773d0f7dba6de12be0837405d51c09ac Mon Sep 17 00:00:00 2001
From: Chris Lee <@klee93>
Date: Sat, 4 Dec 2021 10:49:03 +0100
Subject: [PATCH] add refresh-execp message

---
 src/main.c                  |  5 +++++
 src/tint2-send/Makefile     | 12 -----------
 src/tint2-send/tint2-send.c | 40 +++++++++++++++++++++++++++++--------
 src/util/server.c           |  3 +++
 src/util/server.h           |  1 +
 5 files changed, 41 insertions(+), 20 deletions(-)
 delete mode 100644 src/tint2-send/Makefile

diff --git a/src/main.c b/src/main.c
index 1d4ceb4..6f9b445 100644
--- a/src/main.c
+++ b/src/main.c
@@ -545,6 +545,11 @@ void handle_x_event(XEvent *e)
             handle_dnd_position(&e->xclient);
         } else if (e->xclient.message_type == server.atom.XdndDrop) {
             handle_dnd_drop(&e->xclient);
+        } else if (e->xclient.message_type == server.atom.TINT2_REFRESH_EXECP &&
+            e->xclient.format == 8) {
+            char name[sizeof(e->xclient.data.b) + 1] = {};
+            memcpy(name, e->xclient.data.b, sizeof(e->xclient.data.b));
+            printf("TODO: refresh execp: %s\n", name);
         }
         break;
     }
diff --git a/src/tint2-send/Makefile b/src/tint2-send/Makefile
deleted file mode 100644
index 5fbbcdb..0000000
--- a/src/tint2-send/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-ifeq ($(PREFIX),)
-    PREFIX := /usr/local
-endif
-
-tint2-send: tint2-send.c
-	$(CC) tint2-send.c -lX11 -o tint2-send
-
-install: tint2-send
-	install -m 755 tint2-send $(DESTDIR)/$(PREFIX)/bin/
-
-clean:
-	rm -f tint2-send
diff --git a/src/tint2-send/tint2-send.c b/src/tint2-send/tint2-send.c
index c01bcda..5be118b 100644
--- a/src/tint2-send/tint2-send.c
+++ b/src/tint2-send/tint2-send.c
@@ -60,11 +60,10 @@ int is_tint2(Window window)
     return class_match;
 }
 
-void handle_tint2_window(Window window, void *arg)
+void handle_tint2_window(Window window, char *action, char **args)
 {
     if (!is_tint2(window))
         return;
-    char *action = (char *)arg;
     if (strcmp(action, "show") == 0) {
         fprintf(stderr, "Showing tint2 window: %lx\n", window);
         XEvent event = {};
@@ -85,16 +84,40 @@ void handle_tint2_window(Window window, void *arg)
         event.xcrossing.same_screen = True;
         XSendEvent(display, window, False, 0, &event);
         XFlush(display);
+    } else if (strcmp(action, "refresh-execp") == 0) {
+        XEvent event = {};
+        char *name = args[0];
+        if (!name) {
+            fprintf(stderr, "Error: missing execp name\n");
+            return;
+        }
+        if (!name[0]) {
+            fprintf(stderr, "Error: empty execp name\n");
+            return;
+        }
+        if (strlen(name) > sizeof(event.xclient.data.b)) {
+            fprintf(stderr, "Error: execp name too long\n");
+            return;
+        }
+        fprintf(stderr, "Refreshing execp '%s' for window: %lx\n", name, window);
+        event.xclient.type = ClientMessage;
+        event.xclient.window = window;
+        event.xclient.send_event = True;
+        event.xclient.message_type = XInternAtom(display, "_TINT2_REFRESH_EXECP", False);
+        event.xclient.format = 8;
+        strncpy(event.xclient.data.b, name, sizeof(event.xclient.data.b));
+        XSendEvent(display, window, False, 0, &event);
+        XFlush(display);
     } else {
         fprintf(stderr, "Error: unknown action %s\n", action);
     }
 }
 
-typedef void window_callback_t(Window window, void *arg);
+typedef void window_callback_t(Window window, char *action, char **args);
 
-void walk_windows(Window node, window_callback_t *callback, void *arg)
+void walk_windows(Window node, window_callback_t *callback, char *action, char **args)
 {
-    callback(node, arg);
+    callback(node, action, args);
     Window root = 0;
     Window parent = 0;
     Window *children = 0;
@@ -104,7 +127,7 @@ void walk_windows(Window node, window_callback_t *callback, void *arg)
         return;
     }
     for (unsigned int i = 0; i < nchildren; i++) {
-        walk_windows(children[i], callback, arg);
+        walk_windows(children[i], callback, action, args);
     }
 }
 
@@ -118,11 +141,12 @@ int main(int argc, char **argv)
 
     argc--, argv++;
     if (!argc) {
-        fprintf(stderr, "Usage: tint2-show [show|hide]\n");
+        fprintf(stderr, "Usage: tint2-show [show|hide|refresh-execp]\n");
         exit(1);
     }
     char *action = argv[0];
-    walk_windows(DefaultRootWindow(display), handle_tint2_window, action);
+    char **args = argv + 1;
+    walk_windows(DefaultRootWindow(display), handle_tint2_window, action, args);
 
     return 0;
 }
diff --git a/src/util/server.c b/src/util/server.c
index 41a7a2c..ea8ea98 100644
--- a/src/util/server.c
+++ b/src/util/server.c
@@ -122,6 +122,9 @@ void server_init_atoms()
     server.atom.XdndActionCopy = XInternAtom(server.display, "XdndActionCopy", False);
     server.atom.XdndFinished = XInternAtom(server.display, "XdndFinished", False);
     server.atom.TARGETS = XInternAtom(server.display, "TARGETS", False);
+
+    // tint2 atoms
+    server.atom.TINT2_REFRESH_EXECP = XInternAtom(server.display, "_TINT2_REFRESH_EXECP", False);
 }
 
 const char *GetAtomName(Display *disp, Atom a)
diff --git a/src/util/server.h b/src/util/server.h
index 53db5aa..1259f1d 100644
--- a/src/util/server.h
+++ b/src/util/server.h
@@ -91,6 +91,7 @@ typedef struct Global_atom {
     Atom XdndActionCopy;
     Atom XdndFinished;
     Atom TARGETS;
+    Atom TINT2_REFRESH_EXECP;
 } Global_atom;
 
 typedef struct Property {