Fix: Window Control - Oneliner Tarbar first at Mac

Author: black7375

css/leptonChrome.css

@@ -5358,6 +5358,12 @@
             --uc-window-drag-space-pre: 0px;
           }
         }
+        @supports -moz-bool-pref("layout.css.osx-font-smoothing.enabled") {
+          :root:is([tabsintitlebar], [sizemode="fullscreen"]) {
+            /* Don't need window control */
+            --uc-window-control-space: 0px;
+          }
+        }
         @supports -moz-bool-pref("userChrome.tabbar.as_titlebar") {
           :root:is([tabsintitlebar], [sizemode="fullscreen"]) #tabbrowser-tabs {
             /* Don't need window control */
@@ -5407,6 +5413,12 @@
               --uc-window-drag-space-pre: 0px;
             }
           }
+          @supports -moz-bool-pref("layout.css.osx-font-smoothing.enabled") {
+            :root:is([tabsintitlebar], [sizemode="fullscreen"]) {
+              /* Don't need window control */
+              --uc-window-control-space: 0px;
+            }
+          }
           @supports -moz-bool-pref("userChrome.tabbar.as_titlebar") {
             :root:is([tabsintitlebar], [sizemode="fullscreen"]) #tabbrowser-tabs {
               /* Don't need window control */
@@ -5566,11 +5578,6 @@
               margin-inline-end: var(--uc-window-drag-space-pre, 0px) !important;
             }
           }
-          @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
-            :root[tabsintitlebar="true"]:not([inFullscreen]) #TabsToolbar {
-              margin-inline-start: var(--uc-window-control-space, 0px) !important;
-            }
-          }
         }
         @supports -moz-bool-pref("userChrome.tabbar.one_liner.responsive") {
           @media screen and (min-width: 1100px) {
@@ -5579,10 +5586,19 @@
                 margin-inline-end: var(--uc-window-drag-space-pre, 0px) !important;
               }
             }
-            @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
-              :root[tabsintitlebar="true"]:not([inFullscreen]) #TabsToolbar {
-                margin-inline-start: var(--uc-window-control-space, 0px) !important;
-              }
+          }
+        }
+      }
+      @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
+        @supports not -moz-bool-pref("userChrome.tabbar.one_liner.responsive") {
+          :root[tabsintitlebar="true"]:not([inFullscreen]) #TabsToolbar {
+            margin-inline-start: var(--uc-window-control-width, 0px) !important;
+          }
+        }
+        @supports -moz-bool-pref("userChrome.tabbar.one_liner.responsive") {
+          @media screen and (min-width: 1100px) {
+            :root[tabsintitlebar="true"]:not([inFullscreen]) #TabsToolbar {
+              margin-inline-start: var(--uc-window-control-width, 0px) !important;
             }
           }
         }

src/tabbar/layout/_navbar_padding.scss

@@ -17,6 +17,9 @@
     @include OS($win, $linux) {
       @include _remove_spacer_pre;
     }
+    @include OS($mac) {
+      @include _remove_spacer_post;
+    }
     @include Option("userChrome.tabbar.as_titlebar") {
       #tabbrowser-tabs {
         @include _remove_spacer_post;
@@ -133,8 +136,10 @@
         @include NotOption("userChrome.tabbar.one_liner.tabbar_first") {
           margin-inline-end: var(--uc-window-drag-space-pre, 0px) !important;
         }
-        @include Option("userChrome.tabbar.one_liner.tabbar_first") {
-          margin-inline-start: var(--uc-window-control-space, 0px) !important;
+      }
+      @include Option("userChrome.tabbar.one_liner.tabbar_first") {
+        @include OneLinerContent {
+          margin-inline-start: var(--uc-window-control-width, 0px) !important;
         }
       }
     }