Unify input methods with the installer keyboard selection

default/hypr/bindings/jis.lua

@@ -0,0 +1,43 @@
+-- Defaults for Japanese (JIS) keyboards, which only apply when the installed
+-- layout is jp. See default/hypr/keyboard.lua.
+
+local keyboard = require("default.hypr.keyboard")
+
+if not keyboard.jis() then
+  return
+end
+
+-- Same down/up split as the universal clipboard shortcuts in clipboard.lua.
+local function send_shortcut_once(mods, key)
+  hl.dispatch(hl.dsp.send_key_state({ mods = mods, key = key, state = "down" }))
+
+  hl.timer(function()
+    hl.dispatch(hl.dsp.send_key_state({ mods = mods, key = key, state = "up" }))
+  end, { timeout = 50, type = "oneshot" })
+end
+
+local function active_window_class()
+  local window = hl.get_active_window()
+  return ((window and window.class) or ""):lower()
+end
+
+-- On JIS, + is Shift + ;, so apps see Ctrl + Shift + semicolon and never zoom
+-- in. Hand them Ctrl + keypad plus instead, which Chromium, Electron apps,
+-- VS Code, and Firefox read as zoom in. Obsidian only listens for Ctrl + ^,
+-- which JIS types without Shift.
+local zoom_in_overrides = {
+  obsidian = { "CTRL", "asciicircum" },
+}
+
+o.bind("CTRL + SHIFT + semicolon", "Zoom in (JIS + key)", function()
+  local class = active_window_class()
+
+  for pattern, chord in pairs(zoom_in_overrides) do
+    if class:find(pattern, 1, true) then
+      send_shortcut_once(chord[1], chord[2])
+      return
+    end
+  end
+
+  send_shortcut_once("CTRL", "KP_Add")
+end)