awful.rules: Use the `awful.client/mouse` default buttons and keys.

lib/awful/keyboard.lua

@@ -197,4 +197,13 @@ function module.remove_client_keybinding(key)
     return false
 end
 
+capi.client.connect_signal("scanning", function()
+    capi.client.emit_signal("request::default_keybindings", "context")
+end)
+
+-- Private function to be used by `ruled.client`.
+function module._get_client_keybindings()
+    return default_keys
+end
+
 return module

lib/awful/rules.lua

@@ -121,6 +121,8 @@ local protected_call = require("gears.protected_call")
 local aspawn = require("awful.spawn")
 local gdebug = require("gears.debug")
 local gmatcher = require("gears.matcher")
+local amouse = require("awful.mouse")
+local akeyboard = require("awful.keyboard")
 local unpack = unpack or table.unpack -- luacheck: globals unpack (compatibility with Lua 5.1)
 
 local rules = {}
@@ -529,6 +531,13 @@ end
 -- @staticfct awful.rules.execute
 
 crules._execute = function(_, c, props, callbacks)
+
+    -- Set the default buttons and keys
+    local btns = amouse._get_client_mousebindings()
+    local keys = akeyboard._get_client_keybindings()
+    props.keys    = props.keys or keys
+    props.buttons = props.buttons or btns
+
     -- This has to be done first, as it will impact geometry related props.
     if props.titlebars_enabled and (type(props.titlebars_enabled) ~= "function"
             or props.titlebars_enabled(c,props)) then

objects/client.c

@@ -255,6 +255,17 @@
  *  `startup`).
 */
 
+/** Emitted during startup to gather the default client keybindings.
+ *
+ * This signals gives a chance to all module to register new client keybindings.
+ * Assuming the client rules does not overwrite them with the `keys` property,
+ * they will be added to all clients.
+ *
+ * @signal request::default_keybindings
+ * @tparam string context The reason why the signal was sent (currently always
+ *  `startup`).
+ */
+
 /** When a client gets tagged.
  * @signal tagged
  * @tag t The tag object.