Add synchronize-panes indication

This change updates the themes so that when the synchronize-panes option
is active the current window status primary background color changes to
red and, if there are multiple panes, the active pane border color also
changes to red. There doesn't seem to be a need to indicate the
synchronize-panes status for non-active windows, since the status will
become apparent when the window is made active again.

Author: nateoconnell

src/theme_gruvbox_dark.sh

@@ -12,6 +12,9 @@ theme_set_dark() {
   _right_status_z=$4
   _statusbar_alpha=$5
 
+  # Color to use to indicate that synchronize-panes is enabled
+  local _sync_color=${col_red2}
+
   tmux_append_seto "status" "on"
 
   # default statusbar bg color
@@ -33,7 +36,7 @@ theme_set_dark() {
   tmux_append_setwo "window-status-current-style" "bg=${_active_window_title_bg},fg=${col_bg1}" # TODO cosider removing red!
 
   # pane border
-  tmux_append_seto "pane-active-border-style" "fg=${col_fg2}"
+  tmux_append_seto "pane-active-border-style" "#{?pane_synchronized,fg=${_sync_color},fg=${col_fg2}}"
   tmux_append_seto "pane-border-style" "fg=${col_bg1}"
 
   # message infos
@@ -69,8 +72,10 @@ theme_set_dark() {
 
   # current window
   local _current_window_status_format_bg=${col_bg1}
+  local _current_window_status_primary_bg="#{?pane_synchronized,bg=${_sync_color},bg=${col_yellow2}}"
+  local _current_window_status_primary_fg="#{?pane_synchronized,fg=${_sync_color},fg=${col_yellow2}}"
   if [[ "$_statusbar_alpha" == "true" ]]; then _current_window_status_format_bg="default"; fi
-  tmux_append_setwo "window-status-current-format" "#[bg=${col_yellow2},fg=${col_bg1},nobold,noitalics,nounderscore]#[bg=${col_yellow2},fg=${col_bg2}] #I #[bg=${col_yellow2},fg=${col_bg2},bold] #W#{?window_zoomed_flag,*Z,} #{?window_end_flag,#[bg=${_current_window_status_format_bg}],#[bg=${col_bg1}]}#[fg=${col_yellow2},nobold,noitalics,nounderscore]"
+  tmux_append_setwo "window-status-current-format" "#[${_current_window_status_primary_bg},fg=${col_bg1},nobold,noitalics,nounderscore]#[${_current_window_status_primary_bg},fg=${col_bg2}] #I #[${_current_window_status_primary_bg},fg=${col_bg2},bold] #W#{?window_zoomed_flag,*Z,} #{?window_end_flag,#[bg=${_current_window_status_format_bg}],#[bg=${col_bg1}]}#[${_current_window_status_primary_fg},nobold,noitalics,nounderscore]"
 
   # default window
   local _default_window_status_format_bg=${col_bg1}

src/theme_gruvbox_light.sh

@@ -12,6 +12,9 @@ theme_set_light() {
   _right_status_z=$4
   _statusbar_alpha=$5
 
+  # Color to use to indicate that synchronize-panes is enabled
+  local _sync_color=${col_red}
+
   tmux_append_seto "status" "on"
 
   # default statusbar bg color
@@ -33,7 +36,7 @@ theme_set_light() {
   tmux_append_setwo "window-status-current-style" "bg=${_active_window_title_bg},fg=${col_bg1}" # TODO cosider removing red!
 
   # pane border
-  tmux_append_seto "pane-active-border-style" "fg=${col_fg2}"
+  tmux_append_seto "pane-active-border-style" "#{?pane_synchronized,fg=${_sync_color},fg=${col_fg2}}"
   tmux_append_seto "pane-border-style" "fg=${col_bg1}"
 
   # message infos
@@ -69,8 +72,10 @@ theme_set_light() {
 
   # current window
   local _current_window_status_format_bg=${col_bg1}
+  local _current_window_status_primary_bg="#{?pane_synchronized,bg=${_sync_color},bg=${col_yellow2}}"
+  local _current_window_status_primary_fg="#{?pane_synchronized,fg=${_sync_color},fg=${col_yellow2}}"
   if [[ "$_statusbar_alpha" == "true" ]]; then _current_window_status_format_bg="default"; fi
-  tmux_append_setwo "window-status-current-format" "#[bg=${col_yellow2},fg=${col_bg1},nobold,noitalics,nounderscore]#[bg=${col_yellow2},fg=${col_bg2}] #I #[bg=${col_yellow2},fg=${col_bg2},bold] #W#{?window_zoomed_flag,*Z,} #{?window_end_flag,#[bg=${_current_window_status_format_bg}],#[bg=${col_bg1}]}#[fg=${col_yellow2},nobold,noitalics,nounderscore]"
+  tmux_append_setwo "window-status-current-format" "#[${_current_window_status_primary_bg},fg=${col_bg1},nobold,noitalics,nounderscore]#[${_current_window_status_primary_bg},fg=${col_bg2}] #I #[${_current_window_status_primary_bg},fg=${col_bg2},bold] #W#{?window_zoomed_flag,*Z,} #{?window_end_flag,#[bg=${_current_window_status_format_bg}],#[bg=${col_bg1}]}#[${_current_window_status_primary_fg},nobold,noitalics,nounderscore]"
 
   # default window
   local _default_window_status_format_bg=${col_bg1}

src/theme_gruvbox_light256.sh

@@ -12,6 +12,9 @@ theme_set_light256() {
   _right_status_z=$4
   _statusbar_alpha=$5
 
+  # Color to use to indicate that synchronize-panes is enabled
+  local _sync_color=${col_red}
+
   tmux_append_seto "status" "on"
 
   # default statusbar bg color
@@ -33,7 +36,7 @@ theme_set_light256() {
   tmux_append_setwo "window-status-current-style" "bg=${_active_window_title_bg},fg=${col_bg1}" # TODO cosider removing red!
 
   # pane border
-  tmux_append_seto "pane-active-border-style" "fg=${col_fg2}"
+  tmux_append_seto "pane-active-border-style" "#{?pane_synchronized,fg=${_sync_color},fg=${col_fg2}}"
   tmux_append_seto "pane-border-style" "fg=${col_bg1}"
 
   # message infos
@@ -69,8 +72,10 @@ theme_set_light256() {
 
   # current window
   local _current_window_status_format_bg=${col_bg2}
+  local _current_window_status_primary_bg="#{?pane_synchronized,bg=${_sync_color},bg=${col_yellow}}"
+  local _current_window_status_primary_fg="#{?pane_synchronized,fg=${_sync_color},fg=${col_yellow}}"
   if [[ "$_statusbar_alpha" == "true" ]]; then _current_window_status_format_bg="default"; fi
-  tmux_append_setwo "window-status-current-format" "#[bg=${col_yellow},fg=${col_bg2},nobold,noitalics,nounderscore]#[bg=${col_yellow},fg=${col_fg1}] #I #[bg=${col_yellow},fg=${col_fg1},bold] #W#{?window_zoomed_flag,*Z,} #{?window_end_flag,#[bg=${_current_window_status_format_bg}],#[bg=${col_bg2}]}#[fg=${col_yellow},nobold,noitalics,nounderscore]"
+  tmux_append_setwo "window-status-current-format" "#[${_current_window_status_primary_bg},fg=${col_bg2},nobold,noitalics,nounderscore]#[${_current_window_status_primary_bg},fg=${col_fg1}] #I #[${_current_window_status_primary_bg},fg=${col_fg1},bold] #W#{?window_zoomed_flag,*Z,} #{?window_end_flag,#[bg=${_current_window_status_format_bg}],#[bg=${col_bg2}]}#[${_current_window_status_primary_fg},nobold,noitalics,nounderscore]"
 
   # default window
   local _default_window_status_format_bg=${col_bg2}