init: Deactivate Terminal tab switching hotkeys outside of Terminal

The bindings I created to switch tabs in Terminal shadowed shortcuts in
all other applications, preventing them from performing their normal
function.

To get the bindings only in Terminal, add an application watcher that
enables and disables them when Terminal is activated and deactivated.

1 files changed, 29 insertions, 1 deletions

diff --git a/init.lua b/init.lua
index aa1d934..c61046d 100644
--- a/init.lua
+++ b/init.lua
@@ -27,8 +27,12 @@ spoon.WindowMode:bindHotkeys({ mode = {{'ctrl', 'option'}, 'w'} })
 -- Shortcuts to focus tabs in Terminal
 terminal_app = hs.application.applicationsForBundleID('com.apple.Terminal')[1]
 
+terminal_tab_hotkeys = {}
+
 for i=0,9 do
-	hs.hotkey.bind({"cmd", "alt"}, tostring(i), function()
+	local key = tostring(i)
+
+	terminal_tab_hotkeys[i] = hs.hotkey.bind({"cmd", "alt"}, key, function()
 		if terminal_app:isFrontmost() then
 			local tab_index = i
 			if i == 0 then
@@ -40,6 +44,30 @@ for i=0,9 do
 	end)
 end
 
+function terminal_tab_hotkeys:enable()
+	for _, v in pairs(terminal_tab_hotkeys) do
+		v:enable()
+	end
+end
+
+function terminal_tab_hotkeys:disable()
+	for _, v in pairs(terminal_tab_hotkeys) do
+		v:disable()
+	end
+end
+
+application_watcher = hs.application.watcher.new(function(app_name, event_type, app)
+	if app ~= nil and app_name == 'Terminal' then
+		if event_type == hs.application.watcher.activated then
+			terminal_tab_hotkeys:enable()
+		elseif event_type == hs.application.watcher.deactivated then
+			terminal_tab_hotkeys:disable()
+		end
+	end
+end)
+
+application_watcher:start()
+
 
 -- Maximise window height
 hs.hotkey.bind({'ctrl', 'alt'}, 'z', function()