From 04d8e8f6190279415701781b90c1a648de0d334e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 19 Nov 2016 12:50:50 +0530
Subject: [PATCH] Implement OSC codes to change foreground and background
 colors

---
 kitty/boss.py      | 10 ++++++++--
 kitty/data-types.h |  5 +++--
 kitty/parser.c     |  9 ++++++++-
 kitty/screen.c     | 14 ++++++++++----
 4 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/kitty/boss.py b/kitty/boss.py
index 6d2ac03b9..bda19b81f 100644
--- a/kitty/boss.py
+++ b/kitty/boss.py
@@ -246,8 +246,14 @@ class Boss(Thread):
         self.pending_icon_change = new_icon
         glfw.glfwPostEmptyEvent()
 
-    def change_default_color(self, which, value):
-        self.pending_color_changes[which] = value
+    def set_dynamic_color(self, code, value):
+        wmap = {10: 'fg', 11: 'bg', 110: 'fg', 111: 'bg'}
+        for val in value.decode('utf-8').split(';'):
+            w = wmap.get(code)
+            if w is not None:
+                if code >= 110:
+                    val = None
+                self.pending_color_changes[w] = val
         self.queue_action(self.apply_change_colors)
 
     def apply_change_colors(self):
diff --git a/kitty/data-types.h b/kitty/data-types.h
index b8977be23..1ee38b1fd 100644
--- a/kitty/data-types.h
+++ b/kitty/data-types.h
@@ -343,8 +343,9 @@ void screen_delete_lines(Screen *self, unsigned int count/*=1*/);
 void screen_delete_characters(Screen *self, unsigned int count);
 void screen_erase_characters(Screen *self, unsigned int count);
 void screen_set_margins(Screen *self, unsigned int top, unsigned int bottom);
-void set_title(Screen *self, const uint8_t *buf, unsigned int sz);
-void set_icon(Screen *self, const uint8_t *buf, unsigned int sz);
+void set_title(Screen *self, const char *buf, unsigned int sz);
+void set_icon(Screen *self, const char *buf, unsigned int sz);
+void set_dynamic_color(Screen *self, unsigned int code, const char *buf, unsigned int sz);
 void report_device_attributes(Screen *self, unsigned int UNUSED mode, bool UNUSED secondary);
 void select_graphic_rendition(Screen *self, unsigned int *params, unsigned int count);
 void report_device_status(Screen *self, unsigned int which, bool UNUSED);
diff --git a/kitty/parser.c b/kitty/parser.c
index 1799e51cf..eb28cab1f 100644
--- a/kitty/parser.c
+++ b/kitty/parser.c
@@ -430,7 +430,7 @@ static inline void handle_osc(Screen *screen, PyObject UNUSED *dump_callback) {
     if (screen->parser_buf[0] && screen->parser_buf[1]) code = (unsigned int)atoi((const char*)screen->parser_buf + 2);
 #define DISPATCH_OSC(name) \
     REPORT_COMMAND(name, sz); \
-    name(screen, screen->parser_buf + start, sz);
+    name(screen, (const char*)(screen->parser_buf + start), sz);
 
     switch(code) {
         case 0:
@@ -443,6 +443,13 @@ static inline void handle_osc(Screen *screen, PyObject UNUSED *dump_callback) {
         case 2:
             DISPATCH_OSC(set_title);
             break;
+        case 10:
+        case 11:
+        case 110:
+        case 111:
+            REPORT_COMMAND(set_dynamic_color, code, sz);
+            set_dynamic_color(screen, code, (const char*)(screen->parser_buf + start), sz);
+            break;
         default:
             REPORT_ERROR("Unknown OSC code: %u", code);
     }
diff --git a/kitty/screen.c b/kitty/screen.c
index 418f700c5..d654a8391 100644
--- a/kitty/screen.c
+++ b/kitty/screen.c
@@ -849,12 +849,18 @@ void screen_set_cursor(Screen *self, unsigned int mode, uint8_t secondary) {
     }
 }
 
-void set_title(Screen *self, const uint8_t *buf, unsigned int sz) {
-    callback("title_changed", self, (const char*)buf, sz);
+void set_title(Screen *self, const char *buf, unsigned int sz) {
+    callback("title_changed", self, buf, sz);
 }
 
-void set_icon(Screen *self, const uint8_t *buf, unsigned int sz) {
-    callback("icon_changed", self, (const char*)buf, sz);
+void set_icon(Screen *self, const char *buf, unsigned int sz) {
+    callback("icon_changed", self, buf, sz);
+}
+
+void set_dynamic_color(Screen *self, unsigned int code, const char *buf, unsigned int sz) {
+    if (sz) PyObject_CallMethod(self->callbacks, "set_dynamic_color", "Iy#", code, buf, sz);
+    if (PyErr_Occurred()) PyErr_Print();
+    PyErr_Clear(); 
 }
 
 // }}}