Add helpful method for moving the cursor to an element

this will allow users to easily trigger hover states

spec/features/element_interactions_spec.cr

@@ -101,5 +101,24 @@ module Selenium::Command
         element.displayed?.should be_false
       end
     end
+
+    it "can move the cursor to an element" do
+      TestServer.route "/home", <<-HTML
+      <style>
+        #text:hover {
+          color: rgba(83, 137, 4, 0.6);
+        }
+      </style>
+      <p id="text">Hello, world!</p>
+      HTML
+
+      with_session do |session|
+        session.navigate_to("http://localhost:3002/home")
+        element = session.find_element(:css, "#text")
+        element.css_value("color").should_not eq("rgba(83, 137, 4, 0.6)")
+        session.move_to(element)
+        session.find_element(:css, "#text").css_value("color").should eq("rgba(83, 137, 4, 0.6)")
+      end
+    end
   end
 end

src/selenium/session.cr

@@ -117,6 +117,29 @@ class Selenium::Session
     command_handler.execute(:switch_to_parent_frame, path_variables)
   end
 
+  def move_to(element)
+    rect = element.rect
+    rect_x = rect.try(&.x)
+    rect_width = rect.try(&.width)
+    rect_y = rect.try(&.y)
+    rect_height = rect.try(&.height)
+
+    return if rect_x.nil?
+    return if rect_width.nil?
+    return if rect_y.nil?
+    return if rect_height.nil?
+
+    move_to_x = (rect_x + (rect_width / 2)).to_i
+    move_to_y = (rect_y + (rect_height / 2)).to_i
+
+    sequence = Selenium::InputSourceActionSequence.new(
+      type: "pointer",
+      id: "action-sequence-key",
+      actions: [Selenium::Action.new("pointerMove", x: move_to_x, y: move_to_y)]
+    )
+    perform_actions([sequence])
+  end
+
   private def path_variables
     {":session_id" => id}
   end