diff --git a/src/basic/string16.cpp b/src/basic/string16.cpp
index 664d464..93fdc6a 100644
--- a/src/basic/string16.cpp
+++ b/src/basic/string16.cpp
@@ -268,4 +268,14 @@ String16 SkipUntil(String16 *string, String16 str) {
         *string = Skip(*string, 1);
     }
     return begin;
+}
+
+String16 SkipWhitespace(String16 *string) {
+    String16 begin = {string->data, 0};
+    for (Int i = 0; i < string->len; i += 1) {
+        if (!IsWhitespace(string->data[i])) break;
+        *string = Skip(*string, 1);
+        begin.len += 1;
+    }
+    return begin;
 }
\ No newline at end of file
diff --git a/src/text_editor/event.cpp b/src/text_editor/event.cpp
index 9a79e90..dda89ee 100644
--- a/src/text_editor/event.cpp
+++ b/src/text_editor/event.cpp
@@ -1,62 +1,3 @@
-struct Serializer {
-    Buffer  *buffer;
-    String16 string;
-    bool     is_writing;
-};
-
-void Serialize(Serializer *s, String name, Int *datum) {
-    if (s->is_writing) {
-        IKnowWhatImDoing_Appendf(s->buffer, "%.*s = %lld, ", FmtString(name), (long long)*datum);
-    } else {
-        s->string = Skip(s->string, name.len + 3);
-        *datum    = SkipNumber(&s->string);
-        s->string = Skip(s->string, 2);
-    }
-}
-
-void Serialize(Serializer *s, String name, uint32_t *datum) {
-    Int d = *datum;
-    Serialize(s, name, &d);
-}
-
-void Serialize(Serializer *s, String name, uint8_t *datum) {
-    Int d = *datum;
-    Serialize(s, name, &d);
-}
-
-void Serialize(Serializer *s, String name, int16_t *datum) {
-    Int d = *datum;
-    Serialize(s, name, &d);
-}
-
-void Serialize(Serializer *s, String name, Vec2 *datum) {
-    if (s->is_writing) {
-        IKnowWhatImDoing_Appendf(s->buffer, "%.*s = {%lld, %lld}, ", FmtString(name), (long long)datum->x, (long long)datum->y);
-    } else {
-        s->string = Skip(s->string, name.len + 3 + 1);
-        datum->x  = (float)SkipNumber(&s->string);
-        s->string = Skip(s->string, 2);
-        datum->y  = (float)SkipNumber(&s->string);
-        s->string = Skip(s->string, 1 + 2);
-    }
-}
-
-void Serialize(Serializer *s, String name, char **text) {
-    if (s->is_writing) {
-        String str = *text;
-        IKnowWhatImDoing_Appendf(s->buffer, "%.*s = \"'%.*s'\", ", FmtString(name), FmtString(str));
-    } else {
-        s->string    = Skip(s->string, name.len + 3 + 2);
-        String16 str = SkipUntil(&s->string, L"'\"");
-        if (str.len) {
-            Scratch scratch;
-            String  s8 = ToString(scratch, str);
-            *text      = Intern(&GlobalInternTable, s8).data;
-        }
-        s->string = Skip(s->string, 2 + 2);
-    }
-}
-
 using EventKind = uint32_t;
 enum {
     EVENT_NONE,
@@ -100,28 +41,19 @@ struct Event {
 };
 
 void Serialize(Serializer *s, Event *e) {
-    if (s->is_writing) {
-        IKnowWhatImDoing_Appendf(s->buffer, "{");
-    } else {
-        s->string = Skip(s->string, 1);
-    }
+    SerializeBegin(s);
     Serialize(s, "kind", &e->kind);
     Serialize(s, "key", &e->key);
     Serialize(s, "xmouse", &e->xmouse);
     Serialize(s, "ymouse", &e->ymouse);
+    Serialize(s, "xwindow", &e->xwindow);
+    Serialize(s, "ywindow", &e->ywindow);
     Serialize(s, "flags", &e->flags);
     Serialize(s, "wheel", &e->wheel);
     Serialize(s, "text", &e->text);
-    if (s->is_writing) {
-        IKnowWhatImDoing_Appendf(s->buffer, "},\n");
-    } else {
-        s->string = Skip(s->string, 3);
-        Assert(s->string.len == 0);
-    }
+    SerializeEnd(s);
 }
 
-inline bool IsMouseEvent(EventKind kind) { return kind >= EVENT_MOUSE_LEFT && kind <= EVENT_MOUSE_MOVE; }
-
 const int  DIR_RIGHT     = 0;
 const int  DIR_LEFT      = 1;
 const int  DIR_DOWN      = 2;
@@ -148,8 +80,13 @@ bool WaitForEvents = true;
 #define MousePress() (Mouse(LEFT) || Mouse(RIGHT) || Mouse(MIDDLE))
 #define MouseUp() (Mouse(LEFT_UP) || Mouse(RIGHT_UP) || Mouse(MIDDLE_UP))
 
-// Serializer GetSerializer(Arena *arena, bool is_writing) {
-//     Serializer s = {arena, is_writing};
-//     arena->align = 0;
-//     return s;
-// }
+Array<Event> ParseEvents(Allocator allocator, Buffer *buffer) {
+    Array<Event> events = {allocator};
+    Serializer   s      = {NULL, GetString(buffer), false};
+    for (; s.string.len;) {
+        Event event = {};
+        Serialize(&s, &event);
+        Add(&events, event);
+    }
+    return events;
+}
\ No newline at end of file
diff --git a/src/text_editor/serializer.cpp b/src/text_editor/serializer.cpp
new file mode 100644
index 0000000..52844fb
--- /dev/null
+++ b/src/text_editor/serializer.cpp
@@ -0,0 +1,80 @@
+struct Serializer {
+    Buffer  *buffer; // for writing
+    String16 string; // for reading
+    bool     is_writing;
+};
+
+void Serialize(Serializer *s, String name, Int *datum) {
+    if (s->is_writing) {
+        IKnowWhatImDoing_Appendf(s->buffer, "%.*s = %lld, ", FmtString(name), (long long)*datum);
+    } else {
+        s->string = Skip(s->string, name.len + 3);
+        *datum    = SkipNumber(&s->string);
+        s->string = Skip(s->string, 2);
+    }
+}
+
+void Serialize(Serializer *s, String name, uint32_t *datum) {
+    Int d = *datum;
+    Serialize(s, name, &d);
+    *datum = (uint32_t)d;
+}
+
+void Serialize(Serializer *s, String name, uint8_t *datum) {
+    Int d = *datum;
+    Serialize(s, name, &d);
+    *datum = (uint8_t)d;
+}
+
+void Serialize(Serializer *s, String name, int16_t *datum) {
+    Int d = *datum;
+    Serialize(s, name, &d);
+    *datum = (int16_t)d;
+}
+
+void Serialize(Serializer *s, String name, Vec2 *datum) {
+    if (s->is_writing) {
+        IKnowWhatImDoing_Appendf(s->buffer, "%.*s = {%lld, %lld}, ", FmtString(name), (long long)datum->x, (long long)datum->y);
+    } else {
+        s->string = Skip(s->string, name.len + 3 + 1);
+        datum->x  = (float)SkipNumber(&s->string);
+        s->string = Skip(s->string, 2);
+        datum->y  = (float)SkipNumber(&s->string);
+        s->string = Skip(s->string, 1 + 2);
+    }
+}
+
+void Serialize(Serializer *s, String name, char **text) {
+    if (s->is_writing) {
+        String str = *text;
+        IKnowWhatImDoing_Appendf(s->buffer, "%.*s = \"(%.*s)\", ", FmtString(name), FmtString(str));
+    } else {
+        s->string    = Skip(s->string, name.len + 3 + 2);
+        String16 str = SkipUntil(&s->string, L")\"");
+        if (str.len) {
+            Scratch scratch;
+            String  s8 = ToString(scratch, str);
+            *text      = Intern(&GlobalInternTable, s8).data;
+        }
+        s->string = Skip(s->string, 2 + 2);
+    }
+}
+
+void SerializeBegin(Serializer *s) {
+    if (s->is_writing) {
+        IKnowWhatImDoing_Appendf(s->buffer, "{");
+    } else {
+        SkipWhitespace(&s->string);
+        Assert(s->string[0] == '{');
+        s->string = Skip(s->string, 1);
+    }
+}
+
+void SerializeEnd(Serializer *s) {
+    if (s->is_writing) {
+        IKnowWhatImDoing_Appendf(s->buffer, "},\n");
+    } else {
+        Assert(s->string[0] == '}');
+        s->string = Skip(s->string, 3);
+    }
+}
diff --git a/src/text_editor/text_editor.cpp b/src/text_editor/text_editor.cpp
index b37adc6..d260d8a 100644
--- a/src/text_editor/text_editor.cpp
+++ b/src/text_editor/text_editor.cpp
@@ -35,6 +35,7 @@ int         FullScreenPositionX, FullScreenPositionY;
 #include "management.cpp"
 #include "window.cpp"
 #include "process.cpp"
+#include "serializer.cpp"
 #include "event.cpp"
 #include "commands.cpp"
 #include "commands_clipboard.cpp"
@@ -132,7 +133,6 @@ Event TranslateSDLEvent(SDL_Event *input_event) {
 
     case SDL_EVENT_MOUSE_MOTION: {
         event.kind = EVENT_MOUSE_MOVE;
-        // SDL_MouseMotionEvent &b = input_event->motion;
     } break;
 
     case SDL_EVENT_DROP_FILE: {
@@ -141,15 +141,6 @@ Event TranslateSDLEvent(SDL_Event *input_event) {
         String         string = b.data;
         event.text            = Intern(&GlobalInternTable, string).data;
     } break;
-
-        // SDL_SetEventEnabled(SDL_EVENT_DROP_TEXT, true);
-        //  case SDL_EVENT_DROP_TEXT: {
-        //      SDL_DropEvent &b = input_event->drop;
-        //      event.kind       = EVENT_DROP_TEXT;
-        //      String string    = b.data;
-        // event.text            = Intern(&GlobalInternTable, string).data;
-        //  } break;
-
     default: {
     };
     }
@@ -299,22 +290,31 @@ int main(int argc, char **argv)
     InitWindows();
     InitOS(ReportWarningf);
 
+    Buffer *playback_buffer = NULL;
     for (int i = 1; i < argc; i += 1) {
-        String  it     = argv[i];
-        Window *window = GetWindow({0});
-        WindowOpenBufferView(window, it);
+        String it = argv[i];
+        if (!FileExists(it)) continue;
+        if (EndsWith(it, ".te_events")) {
+            playback_buffer = BufferOpenFile(it);
+        } else {
+            Window *window = GetWindow({0});
+            WindowOpenBufferView(window, it);
+        }
     }
 
     Serializer ser = {EventBuffer, {}, true};
-
     while (AppIsRunning) {
         FrameID += 1;
 
         Scratch      scratch;
         Array<Event> frame_events = GetEventsForFrame(scratch);
+        if (playback_buffer) {
+            frame_events    = ParseEvents(Perm, playback_buffer);
+            playback_buffer = NULL;
+        }
         For(frame_events) {
             if (it.kind == EVENT_QUIT) goto end_of_editor_loop;
-            Serialize(&ser, &it);
+            if (it.kind != EVENT_UPDATE && it.kind != EVENT_MOUSE_MOVE) Serialize(&ser, &it);
             Update(it);
         }
 
diff --git a/src/text_editor/title_bar.cpp b/src/text_editor/title_bar.cpp
index 28be423..e212532 100644
--- a/src/text_editor/title_bar.cpp
+++ b/src/text_editor/title_bar.cpp
@@ -26,6 +26,8 @@ void ReplaceTitleBarData(Window *window) {
     BSet title           = GetBSet(window);
     title.view->scroll.y = 0;
 
+    if (window->id == ActiveWindow) return;
+
     BSet    main = GetMainSet(window);
     Scratch scratch;
     Caret   caret = main.view->carets[0];