apply externalpipe, add save dialog to Ctrl+s, edit dialog to Ctrl+o

config.def.h

@@ -121,6 +121,9 @@ static WebKitFindOptions findopts = WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
         } \
 }
 
+static char *savescreen[] = { "/bin/sh", "-c", "~/suckless/surf/save_screen.sh $(xprop -id $0 _SURF_URI | cut -d '\"' -f2)", winid, NULL };
+static char *editscreen[] = { "/bin/sh", "-c", "~/suckless/surf/edit_screen.sh", NULL };
+
 /* styles */
 /*
  * The iteration will stop at the first match, beginning at the beginning of
@@ -185,6 +188,9 @@ static Key keys[] = {
 
 	{ MODKEY,                GDK_KEY_p,      print,      { 0 } },
 	{ MODKEY,                GDK_KEY_t,      showcert,   { 0 } },
+	{ MODKEY,                GDK_KEY_o,      externalpipe, { .v = editscreen } },
+	{ MODKEY,                GDK_KEY_s,      externalpipe, { .v = savescreen } },
+
 
 	{ MODKEY|GDK_SHIFT_MASK, GDK_KEY_a,      togglecookiepolicy, { 0 } },
 	{ 0,                     GDK_KEY_F11,    togglefullscreen, { 0 } },

edit_screen.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+tmpfile=$(mktemp /tmp/st-edit.XXXXXX)
+trap  'rm "$tmpfile"' 0 1 15
+cat > "$tmpfile"
+st -e "$EDITOR" "$tmpfile"

save_screen.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+filename=$(basename "$1")
+file=$(zenity --file-selection --save --filename="$filename")
+if [ -n "$file" ]; then
+    cat > "$file"
+fi
+

surf.c

@@ -234,6 +234,7 @@ static void togglefullscreen(Client *c, const Arg *a);
 static void togglecookiepolicy(Client *c, const Arg *a);
 static void toggleinspector(Client *c, const Arg *a);
 static void find(Client *c, const Arg *a);
+static void externalpipe(Client *c, const Arg *a);
 
 /* Buttons */
 static void clicknavigate(Client *c, const Arg *a, WebKitHitTestResult *h);
@@ -1981,6 +1982,79 @@ find(Client *c, const Arg *a)
 	}
 }
 
+static void
+externalpipe_execute(char* buffer, Arg *arg) {
+	int to[2];
+	void (*oldsigpipe)(int);
+
+	if (pipe(to) == -1)
+		return;
+
+	switch (fork()) {
+	case -1:
+		close(to[0]);
+		close(to[1]);
+		return;
+	case 0:
+		dup2(to[0], STDIN_FILENO); close(to[0]); close(to[1]);
+		execvp(((char **)arg->v)[0], (char **)arg->v);
+		fprintf(stderr, "st: execvp %s\n", ((char **)arg->v)[0]);
+		perror("failed");
+		exit(0);
+	}
+
+	close(to[0]);
+	oldsigpipe = signal(SIGPIPE, SIG_IGN);
+	write(to[1], buffer, strlen(buffer));
+	close(to[1]);
+	signal(SIGPIPE, oldsigpipe);
+}
+
+static void
+externalpipe_resource_done(WebKitWebResource *r, GAsyncResult *s, Arg *arg)
+{
+	GError *gerr = NULL;
+	guchar *buffer = webkit_web_resource_get_data_finish(r, s, NULL, &gerr);
+	if (gerr == NULL) {
+		externalpipe_execute((char *) buffer, arg);
+	} else {
+		g_error_free(gerr);
+	}
+	g_free(buffer);
+}
+
+static void
+externalpipe_js_done(WebKitWebView *wv, GAsyncResult *s, Arg *arg)
+{
+	WebKitJavascriptResult *j = webkit_web_view_run_javascript_finish(wv, s, NULL);
+	if (!j) {
+		return;
+	}
+	JSCValue *v = webkit_javascript_result_get_js_value(j);
+	if (jsc_value_is_string(v)) {
+		char *buffer = jsc_value_to_string(v);
+		externalpipe_execute(buffer, arg);
+		g_free(buffer);
+	}
+	webkit_javascript_result_unref(j);
+}
+
+void
+externalpipe(Client *c, const Arg *arg)
+{
+	setatom(c, AtomUri, geturi(c));
+	if (curconfig[JavaScript].val.i) {
+		webkit_web_view_run_javascript(
+			c->view, "window.document.documentElement.outerHTML",
+			NULL, externalpipe_js_done, arg);
+	} else {
+		WebKitWebResource *resource = webkit_web_view_get_main_resource(c->view);
+		if (resource != NULL) {
+			webkit_web_resource_get_data(resource, NULL, externalpipe_resource_done, arg);
+		}
+	}
+}
+
 void
 clicknavigate(Client *c, const Arg *a, WebKitHitTestResult *h)
 {