experimental: default item aliasing

README.md

@@ -380,6 +380,27 @@ which you can freely configure to your liking by supplying a different script to
 For performance reasons the space script is only run on change.
 I plan on increasing the available environment variables in scripting step by step but if you have a suggestion let me know in the issues.
 
+## Experimental Features
+These are highly experimental features that need some work, but are included on HEAD anyways, because they do not interfere with
+the rest of the bar.
+### Default Menu Bar Item Alias
+It is possible to create an alias for default menu bar items (such as MeetingBar, etc.) in sketchybar. This is still a bit janky though and needs some serious work
+till it will be usable without headache.
+
+Important: Autohiding of the default menu bar *must* be disabled, such that the bar is shown on screen before starting sketchybar. <br>
+Sketchybar needs to be configured with *topmost* set to on, such that it draws on top of the default menu bar. <br>
+I recommend turning off transparency of the bar and setting *margin* and *y_offset* to 0 and the *height* of the bar to at least 24, so that
+sketchybar completely occludes the default bar. <br>
+I also highly recommend setting a wallpaper on all spaces that makes the default menu bar items appear in either the light or the dark theme consitently.
+
+It is now possible to create an alias of a default menu bar item with the following syntax:
+```bash
+sketchybar -m add alias <application_name> <position>
+```
+this operation requires screen capture permissions, which should be granted in the system preferences.
+This will put the default item into sketchybar. 
+Aliases currently are not clickable.
+
 ## Credits
 yabai,
 spacebar,

makefile

@@ -1,6 +1,6 @@
 FRAMEWORK_PATH = -F/System/Library/PrivateFrameworks
 FRAMEWORK      = -framework Carbon -framework Cocoa -framework SkyLight 
-BUILD_FLAGS    = -std=c99 -Wall -DNDEBUG -O2 -fvisibility=hidden -mmacosx-version-min=10.13
+BUILD_FLAGS    = -std=c99 -Wall -DNDEBUG -Ofast -fvisibility=hidden -mmacosx-version-min=10.13
 BUILD_PATH     = ./bin
 SKETCHYBAR_SRC = ./src/manifest.m
 BINS           = $(BUILD_PATH)/sketchybar

src/alias.c

@@ -0,0 +1,61 @@
+#include "alias.h"
+#include "misc/helpers.h"
+#include <string.h>
+
+void alias_init(struct alias* alias, char* name) {
+  alias->using_light_colors = true;
+  alias->name = name;
+  alias->wid = 0;
+  alias->image_ref = NULL;
+  alias_update_image(alias);
+}
+
+void alias_find_window(struct alias* alias) {
+  CFArrayRef window_list = CGWindowListCopyWindowInfo(kCGWindowListOptionOnScreenOnly, kCGNullWindowID); 
+  int window_count = CFArrayGetCount(window_list);
+
+  for (int i = 0; i < window_count; ++i) {
+    CFDictionaryRef dictionary = CFArrayGetValueAtIndex(window_list, i);
+    if (!dictionary) continue;
+    CFStringRef owner_ref = CFDictionaryGetValue(dictionary, kCGWindowOwnerName);
+    CFStringRef name_ref = CFDictionaryGetValue(dictionary, kCGWindowName);
+    if (!name_ref) continue;
+    if (!owner_ref) continue;
+    
+    CFNumberRef layer_ref = CFDictionaryGetValue(dictionary, kCGWindowLayer);
+    if (!layer_ref) continue;
+
+    uint64_t layer = 0;
+    CFNumberGetValue(layer_ref, CFNumberGetType(layer_ref), &layer);
+    if (layer != MENUBAR_LAYER) continue;
+
+    CFNumberRef window_id_ref = CFDictionaryGetValue(dictionary, kCGWindowNumber);
+    if (!window_id_ref) continue;
+    CGWindowID window_id = 0;
+    CFNumberGetValue(window_id_ref, CFNumberGetType(window_id_ref), &window_id);
+    char* owner = cfstring_copy(owner_ref);
+    char* name = cfstring_copy(name_ref);
+
+    if (strcmp(alias->name, owner) != 0) { free(owner); free(name); continue; }
+    alias->wid = window_id;
+
+    free(owner);
+    free(name);
+    CFRelease(window_list);
+    return;
+  }
+  alias->wid = 0;
+  CFRelease(window_list);
+}
+
+bool alias_update_image(struct alias* alias) {
+  if (alias->wid == 0) alias_find_window(alias); 
+  if (alias->wid == 0) { alias->image_ref = NULL; return false; }
+  if (alias->image_ref) CFRelease(alias->image_ref);
+  alias->image_ref = CGWindowListCreateImage(CGRectNull, kCGWindowListOptionIncludingWindow, 
+                                             alias->wid, kCGWindowImageBestResolution);
+  if (!alias->image_ref) return false;
+  alias->size.x = CGImageGetWidth(alias->image_ref);
+  alias->size.y = CGImageGetHeight(alias->image_ref);
+  return true;
+}

src/alias.h

@@ -0,0 +1,18 @@
+#ifndef ALIAS_H
+#define ALIAS_H
+
+#define MENUBAR_LAYER 0x19
+
+struct alias {
+  bool using_light_colors;
+  char* name;
+  uint32_t wid;
+  CGImageRef image_ref;
+  CGPoint size;
+};
+
+void alias_init(struct alias* alias, char* name);
+bool alias_update_image(struct alias* alias);
+void alias_find_window(struct alias* alias);
+
+#endif

src/bar.c

@@ -154,6 +154,12 @@ void bar_draw_item_background(struct bar* bar, struct bar_item* bar_item, uint32
   draw_rect(bar->context, draw_region, &bar_item->background_color, bar_item->background_corner_radius, bar_item->background_border_width, &bar_item->background_border_color, false);
 }
 
+void bar_draw_alias(struct bar* bar, struct bar_item* bar_item, uint32_t x) {
+  if (!bar_item->has_alias || !bar_item->alias.image_ref) return;
+  CGRect bounds = {{x, (bar->frame.size.height - bar_item->alias.size.y) / 2},{bar_item->alias.size.x, bar_item->alias.size.y}};
+  CGContextDrawImage(bar->context, bounds, bar_item->alias.image_ref);
+}
+
 void bar_redraw(struct bar* bar) {
   uint32_t did = bar->adid;
   uint32_t sid = bar->sid;
@@ -172,6 +178,7 @@ void bar_redraw(struct bar* bar) {
     if (!bar_item->drawing) continue;
     if (bar_item->associated_display > 0 && !(bar_item->associated_display & (1 << did))) continue;
     if (bar_item->associated_space > 0 && !(bar_item->associated_space & (1 << sid)) && (bar_item->type != BAR_COMPONENT_SPACE)) continue;
+    if (bar_item->has_alias) alias_update_image(&bar_item->alias);
     struct bar_line* label = &bar_item->label_line;
     struct bar_line* icon = &bar_item->icon_line;
     CGPoint icon_position = bar_align_line(bar, icon, ALIGN_CENTER, ALIGN_CENTER);
@@ -190,6 +197,9 @@ void bar_redraw(struct bar* bar) {
         if (!bar_item->nospace) 
           bar_left_final_item_x += bar_item->graph_data.graph_width;
       }
+      if (bar_item->has_alias) {
+        bar_left_final_item_x += bar_item->alias.size.x;
+      }
     }
     else if (bar_item->position == BAR_POSITION_RIGHT) {
       label_position.x = bar_right_first_item_x - label->bounds.size.width - bar_item->label_spacing_right;
@@ -202,6 +212,10 @@ void bar_redraw(struct bar* bar) {
         graph_rtl = true;
         if (!bar_item->nospace) 
           bar_right_first_item_x -= bar_item->graph_data.graph_width;
+      } 
+      if (bar_item->has_alias) {
+        icon_position.x -= bar_item->alias.size.x;
+        bar_right_first_item_x -= bar_item->alias.size.x;
       }
     }
     else if (bar_item->position == BAR_POSITION_CENTER) {
@@ -215,6 +229,9 @@ void bar_redraw(struct bar* bar) {
         if (!bar_item->nospace) 
           bar_center_first_item_x += bar_item->graph_data.graph_width;
       }
+      if (bar_item->has_alias) {
+        bar_center_first_item_x += bar_item->alias.size.x;
+      }
     }
     bar_item->label_line.bounds.origin = label_position;
     bar_item->icon_line.bounds.origin = icon_position;
@@ -223,6 +240,7 @@ void bar_redraw(struct bar* bar) {
     
     bar_draw_item_background(bar, bar_item, sid);
     bar_draw_line(bar, icon, icon_position.x, icon_position.y);
+    bar_draw_alias(bar, bar_item, icon_position.x);
     bar_draw_line(bar, label, label_position.x, label_position.y);
     bar_draw_graph(bar, bar_item, graph_x, graph_rtl);
   }
@@ -243,8 +261,8 @@ void bar_create_frame(struct bar *bar, CFTypeRef *frame_region) {
   if (0 == strcmp(g_bar_manager.position, BAR_POSITION_BOTTOM)) {
     origin.y = CGRectGetMaxY(bounds) - g_bar_manager.height - 2*g_bar_manager.y_offset;
   } else if (display_menu_bar_visible()) {
-    CGRect menu = display_menu_bar_rect(bar->did);
-    origin.y   += menu.size.height;
+    //CGRect menu = display_menu_bar_rect(bar->did);
+    //origin.y   += menu.size.height;
   }
 
   bar->frame = (CGRect) {{0, 0},{bounds.size.width, g_bar_manager.height}};

src/bar_item.c

@@ -75,6 +75,7 @@ void bar_item_init(struct bar_item* bar_item, struct bar_item* default_item) {
   bar_item->background_corner_radius = 0;
   bar_item->background_border_width = 0;
   bar_item->bounding_rects = NULL;
+  bar_item->has_alias = false;
 
   if (default_item) bar_item_inherit_from_item(bar_item, default_item);
 

src/bar_item.h

@@ -5,6 +5,7 @@
 #define BAR_ITEM            'i'
 #define BAR_COMPONENT_GRAPH 'g'
 #define BAR_COMPONENT_SPACE 's'
+#define BAR_COMPONENT_ALIAS 'a'
 #define BAR_PLUGIN          'p'
 
 #define BAR_POSITION_LEFT   'l'
@@ -78,6 +79,10 @@ struct bar_item {
   bool has_graph;
   struct graph_data graph_data;
 
+  // Alias Data
+  bool has_alias;
+  struct alias alias;
+
   // Update Events
   uint32_t update_mask;
 

src/manifest.m

@@ -26,6 +26,7 @@
 #include "display.h"
 #include "bar.h"
 #include "graph_data.h"
+#include "alias.h"
 #include "bar_item.h"
 #include "custom_events.h"
 #include "bar_manager.h"
@@ -38,6 +39,7 @@
 #include "display.c"
 #include "bar.c"
 #include "graph_data.c"
+#include "alias.c"
 #include "bar_item.c"
 #include "custom_events.c"
 #include "bar_manager.c"

src/message.c

@@ -314,6 +314,10 @@ static void handle_domain_add(FILE* rsp, struct token domain, char* message) {
       bar_item_set_script(bar_item, string_copy("if [ \"$SELECTED\" = \"true\" ]; then sketchybar -m set $NAME icon_highlight on; else sketchybar -m set $NAME icon_highlight off; fi"));
       bar_item->update_mask |= UPDATE_SPACE_CHANGE;
     }
+    else if (bar_item->type == BAR_COMPONENT_ALIAS) {
+      alias_init(&bar_item->alias, token_to_string(name));
+      bar_item->has_alias = true;
+    }
   } else if (token_equals(command, COMMAND_ADD_PLUGIN)) {
     struct token identifier = get_token(&message);
     name = get_token(&message);