client: Add request::geometry

Remove request::fullscreen and request::maximized_* and use
a single request for them. The other client resizing features
will soon also start to use this.

lib/awful/ewmh.lua

@@ -12,71 +12,14 @@ local client = client
 local screen = screen
 local ipairs = ipairs
 local math = math
+local util = require("awful.util")
 local aclient = require("awful.client")
+local aplace = require("awful.placement")
 
 local ewmh = {}
 
 local data = setmetatable({}, { __mode = 'k' })
 
-local function store_geometry(window, reqtype)
-    if not data[window] then data[window] = {} end
-    if not data[window][reqtype] then data[window][reqtype] = {} end
-    data[window][reqtype] = window:geometry()
-    data[window][reqtype].screen = window.screen
-end
-
---- Maximize a window horizontally.
---
--- @param window The window.
--- @param set Set or unset the maximized values.
-local function maximized_horizontal(window, set)
-    if set then
-        store_geometry(window, "maximized_horizontal")
-        local g = screen[window.screen].workarea
-        local bw = window.border_width or 0
-        window:geometry { width = g.width - 2*bw, x = g.x }
-    elseif data[window] and data[window].maximized_horizontal
-        and data[window].maximized_horizontal.x
-        and data[window].maximized_horizontal.width then
-        local g = data[window].maximized_horizontal
-        window:geometry { width = g.width, x = g.x }
-    end
-end
-
---- Maximize a window vertically.
---
--- @param window The window.
--- @param set Set or unset the maximized values.
-local function maximized_vertical(window, set)
-    if set then
-        store_geometry(window, "maximized_vertical")
-        local g = screen[window.screen].workarea
-        local bw = window.border_width or 0
-        window:geometry { height = g.height - 2*bw, y = g.y }
-    elseif data[window] and data[window].maximized_vertical
-        and data[window].maximized_vertical.y
-        and data[window].maximized_vertical.height then
-        local g = data[window].maximized_vertical
-        window:geometry { height = g.height, y = g.y }
-    end
-end
-
---- Fullscreen a window.
---
--- @param window The window.
--- @param set Set or unset the fullscreen values.
-local function fullscreen(window, set)
-    if set then
-        store_geometry(window, "fullscreen")
-        data[window].fullscreen.border_width = window.border_width
-        window.border_width = 0
-        window:geometry(screen[window.screen].geometry)
-    elseif data[window] and data[window].fullscreen then
-        window.border_width = data[window].fullscreen.border_width
-        window:geometry(data[window].fullscreen)
-    end
-end
-
 local function screen_change(window)
     if data[window] then
         for _, reqtype in ipairs({ "maximized_vertical", "maximized_horizontal", "fullscreen" }) do
@@ -202,12 +145,60 @@ function ewmh.urgent(c, urgent)
     end
 end
 
+-- Map the state to the action name
+local context_mapper = {
+    maximized_vertical   = "maximize_vertically",
+    maximized_horizontal = "maximize_horizontally",
+    fullscreen           = "maximize"
+}
+
+--- Move and resize the client.
+--
+-- This is the default geometry request handler.
+--
+-- @tparam client c The client
+-- @tparam string context The context
+-- @tparam[opt={}] table hints The hints to pass to the handler
+function ewmh.geometry(c, context, hints)
+    context = context or ""
+
+    local original_context = context
+
+    -- Now, map it to something useful
+    context = context_mapper[context] or context
+
+    local props = util.table.clone(hints or {}, false)
+    props.store_geometry = props.store_geometry==nil and true or props.store_geometry
+
+    -- If it is a known placement function, then apply it, otherwise let
+    -- other potential handler resize the client (like in-layout resize or
+    -- floating client resize)
+    if aplace[context] then
+
+        -- Check if it correspond to a boolean property
+        local state = c[original_context]
+
+        -- If the property is boolean and it correspond to the undo operation,
+        -- restore the stored geometry.
+        if state == false then
+            aplace.restore(c,{context=context})
+            return
+        end
+
+        local honor_default = original_context ~= "fullscreen"
+
+        if props.honor_workarea == nil then
+            props.honor_workarea = honor_default
+        end
+
+        aplace[context](c, props)
+    end
+end
+
 client.connect_signal("request::activate", ewmh.activate)
 client.connect_signal("request::tag", ewmh.tag)
 client.connect_signal("request::urgent", ewmh.urgent)
-client.connect_signal("request::maximized_horizontal", maximized_horizontal)
-client.connect_signal("request::maximized_vertical", maximized_vertical)
-client.connect_signal("request::fullscreen", fullscreen)
+client.connect_signal("request::geometry", ewmh.geometry)
 client.connect_signal("property::screen", screen_change)
 client.connect_signal("property::border_width", geometry_change)
 client.connect_signal("property::geometry", geometry_change)

objects/client.c

@@ -1697,9 +1697,9 @@ client_set_fullscreen(lua_State *L, int cidx, bool s)
             client_set_ontop(L, cidx, false);
         }
         int abs_cidx = luaA_absindex(L, cidx); \
-        lua_pushboolean(L, s);
+        lua_pushstring(L, "fullscreen");
         c->fullscreen = s;
-        luaA_object_emit_signal(L, abs_cidx, "request::fullscreen", 1);
+        luaA_object_emit_signal(L, abs_cidx, "request::geometry", 1);
         luaA_object_emit_signal(L, abs_cidx, "property::fullscreen", 0);
         /* Force a client resize, so that titlebars get shown/hidden */
         client_resize_do(c, c->geometry, true);
@@ -1730,10 +1730,10 @@ client_get_maximized(client_t *c)
         if(c->maximized_##type != s) \
         { \
             int abs_cidx = luaA_absindex(L, cidx); \
-            lua_pushboolean(L, s); \
             int max_before = client_get_maximized(c); \
             c->maximized_##type = s; \
-            luaA_object_emit_signal(L, abs_cidx, "request::maximized_" #type, 1); \
+            lua_pushstring(L, "maximized_"#type);\
+            luaA_object_emit_signal(L, abs_cidx, "request::geometry", 1); \
             luaA_object_emit_signal(L, abs_cidx, "property::maximized_" #type, 0); \
             if(max_before != client_get_maximized(c)) \
                 luaA_object_emit_signal(L, abs_cidx, "property::maximized", 0); \
@@ -3446,17 +3446,14 @@ client_class_setup(lua_State *L)
      */
     signal_add(&client_class.signals, "request::activate");
     /**
-     * @signal request::fullscreen
+     * @signal request::geometry
+     * @tparam client c The client
+     * @tparam string context Why and what to resize. This is used for the
+     * handlers to know if they are capable of applying the new geometry.
+     * @tparam[opt={}] table Additional arguments. Each context handler may
+     * interpret this differently.
      */
-    signal_add(&client_class.signals, "request::fullscreen");
-    /**
-     * @signal request::maximized_horizontal
-     */
-    signal_add(&client_class.signals, "request::maximized_horizontal");
-    /**
-     * @signal request::maximized_vertical
-     */
-    signal_add(&client_class.signals, "request::maximized_vertical");
+    signal_add(&client_class.signals, "request::geometry");
     /**
      * @signal request::tag
      */