Made Container less independant of Element, events are now fired.

lib/cyberarm_engine/ui/container.rb

@@ -3,48 +3,24 @@ module CyberarmEngine
     include Common
 
     attr_accessor :stroke_color, :fill_color, :background_color, :x, :y, :z, :width, :height
-    attr_reader :children, :options, :parent
+    attr_reader :children
     attr_reader :scroll_x, :scroll_y
 
     def initialize(options = {}, block = nil)
-      @parent = options[:parent] || nil
+      super
+      # @current_position = Vector.new(@x, @y)
 
-      options = {
-        x: 0, y: 0, z: 0,
-        width: 0, height: 0
-      }.merge(options)
-
-      x = options.dig(:x)
-      y = options.dig(:y)
-      z = options.dig(:z)
-
-      width  = options.dig(:width)
-      height = options.dig(:height)
-
-      raise "#{self.class} 'x' must be a number" unless x.is_a?(Numeric)
-      raise "#{self.class} 'y' must be a number" unless y.is_a?(Numeric)
-      raise "#{self.class} 'z' must be a number" unless z.is_a?(Numeric)
-      raise "#{self.class} 'width' must be a number" unless width.is_a?(Numeric)
-      raise "#{self.class} 'height' must be a number" unless height.is_a?(Numeric)
-      raise "#{self.class} 'options' must be a Hash" unless options.is_a?(Hash)
-
-      @x, @y, @z, @width, @height, = x, y, z, width, height
       @origin_x, @origin_x = @x, @x
       @origin_width, @origin_height = @width, @height
       @scroll_x, @scroll_y = 0, 0
       @scroll_speed = 10
 
-      @block = block
-      @options = options
-
       @text_color = options[:text_color] || Element::THEME[:stroke]
       @background_color = Element::THEME[:background]
 
       @children = []
 
       @theme = {}
-
-      return self
     end
 
     def build

lib/cyberarm_engine/ui/element.rb

@@ -4,30 +4,59 @@ module CyberarmEngine
     include Event
 
     attr_accessor :x, :y, :z, :width, :height, :padding, :margin, :enabled
+    attr_reader :parent, :options, :event_handler
 
     def initialize(options = {}, block = nil)
       @parent = options[:parent] # parent Container (i.e. flow/stack)
-      options = (THEME).merge(DEFAULTS).merge(@parent.theme).merge(options)
+      parent_theme = @parent ? @parent.theme : {}
+      options = (THEME).merge(DEFAULTS).merge(parent_theme).merge(options)
       @options = options
       @block = block
 
-      @x = options[:x]
+      @x = options.dig(:x)
-      @y = options[:y]
+      @y = options.dig(:y)
-      @z = options[:z]
+      @z = options.dig(:z)
 
       @fixed_x = @x if @x != 0
       @fixed_y = @y if @y != 0
 
-      @width = options[:width]
+      @width  = options.dig(:width)
-      @height = options[:width]
+      @height = options.dig(:height)
+
+      @padding = options.dig(:padding)
+      @margin  = options.dig(:margin)
+
+      raise "#{self.class} 'x' must be a number" unless @x.is_a?(Numeric)
+      raise "#{self.class} 'y' must be a number" unless @y.is_a?(Numeric)
+      raise "#{self.class} 'z' must be a number" unless @z.is_a?(Numeric)
+      raise "#{self.class} 'width' must be a number" unless @width.is_a?(Numeric)
+      raise "#{self.class} 'height' must be a number" unless @height.is_a?(Numeric)
+      raise "#{self.class} 'options' must be a Hash" unless @options.is_a?(Hash)
+
+      raise "#{self.class} 'padding' must be a number" unless @padding.is_a?(Numeric)
+      raise "#{self.class} 'margin' must be a number" unless @margin.is_a?(Numeric)
 
       @max_width  = @width  if @width  != 0
       @max_height = @height if @height != 0
 
-      @padding = options[:padding]
-      @margin  = options[:margin]
-
       @enabled = true
+
+      default_events
+    end
+
+    def default_events
+      [:left, :middle, :right].each do |button|
+        event(:"#{button}_mouse_button")
+        event(:"released_#{button}_mouse_button")
+        event(:"holding_#{button}_mouse_button")
+      end
+
+      event(:mouse_wheel_up)
+      event(:mouse_wheel_down)
+
+      event(:enter)
+      event(:hover)
+      event(:leave)
     end
 
     def enabled?

lib/cyberarm_engine/ui/event.rb

@@ -1,13 +1,29 @@
 module CyberarmEngine
-  module Event
+  module Event # Gets included into Element
     def subscribe(event, method = nil, &block)
+      handler = method || block
+      @event_handler[event] << handler
+
+      Subscription.new(self, event, handler)
     end
 
-    def unsubscribe(event)
+    def unsubscribe(subscription)
     end
 
     def publish(event, *args)
-      # block.call(*args)
+      raise ArgumentError, "#{self.class} does not handle #{event.inspect}" unless @event_handler.include?(event)
+
+      return unless enabled?
+
+      if respond_to?(event)
+        return :handled if send(event, self, *args) == :handled
+      end
+
+      @event_handler[event].reverse_each do |handler|
+        return :handled if handler.call(self, *args) == :handled
+      end
+
+      return nil
     end
 
     def event(event)
@@ -17,5 +33,14 @@ module CyberarmEngine
   end
 
   class Subscription
+    attr_reader :publisher, :event, :handler
+
+    def initialize(publisher, event, handler)
+      @publisher, @event, @handler = publisher, event, handler
+    end
+
+    def unsubscribe
+      @publisher.unsubscribe(self)
+    end
   end
 end

lib/cyberarm_engine/ui/gui_state.rb

@@ -30,6 +30,10 @@ module CyberarmEngine
       super
 
       new_mouse_over = @root_container.hit_element?(window.mouse_x, window.mouse_y)
+      if new_mouse_over
+        new_mouse_over.publish(:enter) if new_mouse_over != @mouse_over
+        new_mouse_over.publish(:hover, window.mouse_x, window.mouse_y)
+      end
       @mouse_over.publish(:leave) if @mouse_over && new_mouse_over != @mouse_over
       @mouse_over = new_mouse_over
 
@@ -69,7 +73,7 @@ module CyberarmEngine
     end
 
     def redirect_mouse_button(button)
-      @mouse_over.publish(:"released_#{button}_mouse_button", window.mouse_x, window.mouse_y) if @mouse_over
+      @mouse_over.publish(:"#{button}_mouse_button", window.mouse_x, window.mouse_y) if @mouse_over
     end
 
     def redirect_released_mouse_button(button)
@@ -81,7 +85,7 @@ module CyberarmEngine
     end
 
     def redirect_mouse_wheel(button)
-      @mouse_over.publish(:"scroll_#{button}", window.mouse_x, window.mouse_y) if @mouse_over
+      @mouse_over.publish(:"mouse_wheel_#{button}", window.mouse_x, window.mouse_y) if @mouse_over
     end
   end
 end