core/menusystem: rework focus system

Don't let every menus handle themselves if they have focus, it should be 
the menu system role to handle that

sonic-boost.love/core/modules/menusystem/flowbox.lua

@@ -120,6 +120,7 @@ function FlowBox:mousemoved(x, y)
 
   if widget_selected >= 1 and widget_selected <= #self.widget.list then
     self.widget.selected = widget_selected
+    self:getFocus()
   end
 end
 
@@ -134,9 +135,10 @@ function FlowBox:mousepressed(x, y, button, isTouch)
 
   if widget_selected >= 1 and widget_selected <= #self.widget.list then
     self.widget.selected = widget_selected
+    self:getFocus()
     self.widget.list[self.widget.selected]:action()
   end
-  
+
 end
 
 function FlowBox:draw()
@@ -145,7 +147,7 @@ function FlowBox:draw()
   for i,v in ipairs(self.widget.list) do
     if (i >= self.begin) and (i < self.begin + self.slots) then
       v:draw(widgetx, widgety, self.widget.w, self.widget.h)
-      if self.widget.selected == i and self.haveFocus == true then
+      if self.widget.selected == i and self:haveFocus() == true then
         v:drawSelected(widgetx, widgety, self.widget.w, self.widget.h)
       else
         v:draw(widgetx, widgety, self.widget.w, self.widget.h)

sonic-boost.love/core/modules/menusystem/grid.lua

@@ -206,7 +206,7 @@ function GridBox:draw()
   for i,v in ipairs(self.listSlot) do
     if (v.isSlave == 0) and (v.widgetID <= #self.widget.list) then
       --self.widget.list[v.widgetID]:draw(widgetx, widgety, self.widget.w * v.sizeW, self.widget.h * v.sizeH)
-      if self.widget.selected == v.widgetID and self.haveFocus == true then
+      if self.widget.selected == v.widgetID and self:haveFocus() == true then
         self.widget.list[v.widgetID]:drawSelected(widgetx, widgety, self.widget.w * v.sizeW, self.widget.h * v.sizeH)
       else
         self.widget.list[v.widgetID]:draw(widgetx, widgety, self.widget.w * v.sizeW, self.widget.h * v.sizeH)

sonic-boost.love/core/modules/menusystem/init.lua

@@ -15,6 +15,7 @@ MenuSystem.Widget       = require(cwd .. "widgets")
 
 function MenuSystem:new()
   self.menus = {}
+  self.focusedMenu = ""
 end
 
 function MenuSystem:reset()
@@ -27,17 +28,19 @@ end
 
 function MenuSystem:update(dt)
   self:removeDestroyedMenus()
-  for l,v in pairs(self.menus) do
+  for k,v in pairs(self.menus) do
     v:update(dt)
     v:updateWidgets(dt)
-    if v.haveFocus == true then
-      for k,w in pairs(self.keys) do
-        if self.keys[k].isPressed then
-          v:keyreleased(k)
-        end
+  end
+
+  if self.menus[self.focusedMenu] ~= nil then
+    for k,v in pairs(self.keys) do
+      if self.keys[k].isPressed then
+        self.menus[self.focusedMenu]:keyreleased(k)
       end
     end
   end
+
 end
 
 function MenuSystem:removeDestroyedMenus()
@@ -58,10 +61,6 @@ function MenuSystem:mousemoved(x, y, dx, dy)
     if v.isActive then
       if (x > v.x) and (x < v.x + v.w) and (y > v.y) and (y < v.y + v.h) then
         v:mousemoved(x - v.x, y - v.y)
-        for j,u in ipairs(self.menus) do
-          u.haveFocus = false
-        end
-        v.haveFocus = true
       end
     end
   end
@@ -72,10 +71,6 @@ function MenuSystem:mousepressed( x, y, button, istouch )
     if v.isActive then
       if (x > v.x) and (x < v.x + v.w) and (y > v.y) and (y < v.y + v.h) then
         v:mousepressed(x - v.x, y - v.y, button, istouch )
-        for j,u in ipairs(self.menus) do
-          u.haveFocus = false
-        end
-        v.haveFocus = true
       end
     end
   end

sonic-boost.love/core/modules/menusystem/listbox.lua

@@ -50,6 +50,7 @@ function ListBox:mousemoved(x, y)
 
   if widget_selected >= 1 and widget_selected <= #self.widget.list then
     self.widget.selected = widget_selected
+    self:getFocus()
   end
 end
 
@@ -58,11 +59,12 @@ function ListBox:mousepressed(x, y, button, isTouch)
 
   if widget_selected >= 1 and widget_selected <= #self.widget.list then
     self.widget.selected = widget_selected
+    self:getFocus()
     if #self.widget.list > 0 then
       self.widget.list[self.widget.selected]:action()
     end
   end
-  
+
 end
 
 function ListBox:draw()
@@ -70,7 +72,7 @@ function ListBox:draw()
   for i,v in ipairs(self.widget.list) do
     if (i >= self.begin) and (i < self.begin + self.slots) then
       v:draw(self.x, widgety, self.w, self.widget.h)
-      if self.widget.selected == i and self.haveFocus == true then
+      if self.widget.selected == i and self:haveFocus() == true then
         v:drawSelected(self.x, widgety, self.w, self.widget.h)
       else
         v:draw(self.x, widgety, self.w, self.widget.h)

sonic-boost.love/core/modules/menusystem/parent.lua

@@ -17,7 +17,6 @@ function Menu:new(menusystem, name, x, y, w, h)
   self:updateWidgetSize()
 
   self.isDestroyed  = false
-  self.haveFocus    = false
   self.isVisible    = true
   self.isActive     = true
 
@@ -28,6 +27,14 @@ function Menu:new(menusystem, name, x, y, w, h)
   self:register()
 end
 
+function Menu:getFocus()
+  self.menusystem.focusedMenu = self.name
+end
+
+function Menu:haveFocus()
+  return (self.menusystem.focusedMenu == self.name)
+end
+
 function Menu:register()
   self.menusystem:addMenu(self.name, self)
 end