Merge pull request #1776 from psychon/emit_property_floating

Always emit property::floating when needed

lib/awful/client.lua

@@ -667,18 +667,39 @@ function client.object.get_floating(c)
         if value ~= nil then
             return value
         end
-        if c.type ~= "normal"
+        return client.property.get(c, "_implicitly_floating") or false
+    end
+end
+
+-- When a client is not explicitly assigned a floating state, it might
+-- implicitly end up being floating. The following makes sure that
+-- property::floating is still emitted if this implicit floating state changes.
+
+local function update_implicitly_floating(c)
+    local explicit = client.property.get(c, "floating")
+    if explicit ~= nil then
+        return
+    end
+    local cur = client.property.get(c, "_implicitly_floating")
+    local new = c.type ~= "normal"
             or c.fullscreen
             or c.maximized_vertical
             or c.maximized_horizontal
             or c.maximized
-            or client.object.is_fixed(c) then
-            return true
-        end
-        return false
+            or client.object.is_fixed(c)
+    if cur ~= new then
+        client.property.set(c, "_implicitly_floating", new)
+        c:emit_signal("property::floating")
     end
 end
 
+capi.client.connect_signal("property::type", update_implicitly_floating)
+capi.client.connect_signal("property::fullscreen", update_implicitly_floating)
+capi.client.connect_signal("property::maximized_vertical", update_implicitly_floating)
+capi.client.connect_signal("property::maximized_horizontal", update_implicitly_floating)
+capi.client.connect_signal("property::maximized", update_implicitly_floating)
+capi.client.connect_signal("property::size_hints", update_implicitly_floating)
+
 --- Toggle the floating state of a client between 'auto' and 'true'.
 -- Use `c.floating = not c.floating`
 -- @deprecated awful.client.floating.toggle

tests/test-awful-client.lua

@@ -74,7 +74,41 @@ local steps = {
 
             return true
         end
-    end
+    end,
+
+    -- Test implicitly floating state: Even though a client way not explicitly
+    -- made floating, it could still end up being floating
+    function()
+        local c = client.get()[1]
+        assert(c ~= nil)
+
+        awful.client.property.set(c, "floating", nil)
+        assert(not c.floating)
+        assert(not c.maximized)
+
+        local signal_count = 0
+        c:connect_signal("property::floating", function()
+            signal_count = signal_count + 1
+        end)
+
+        c.maximized = true
+        assert(c.floating)
+        assert(signal_count == 1)
+
+        c.fullscreen = true
+        assert(c.floating)
+        assert(signal_count == 1)
+
+        c.maximized = false
+        assert(c.floating)
+        assert(signal_count == 1)
+
+        c.fullscreen = false
+        assert(c.floating == false)
+        assert(signal_count == 2)
+
+        return true
+    end,
 }
 
 local original_count, c1, c2 = 0