From dadea76f0b48042d26beb382381578efde47a523 Mon Sep 17 00:00:00 2001
From: Anton Maminov <anton.linux@gmail.com>
Date: Mon, 20 Feb 2023 22:56:49 +0200
Subject: [PATCH] implement Selenium::Element#submit

---
 spec/features/element_interactions_spec.cr | 33 ++++++++++++++++++++++
 src/selenium/element.cr                    | 27 ++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/spec/features/element_interactions_spec.cr b/spec/features/element_interactions_spec.cr
index b63f7ec..830bb20 100644
--- a/spec/features/element_interactions_spec.cr
+++ b/spec/features/element_interactions_spec.cr
@@ -16,6 +16,39 @@ module Selenium::Command
       end
     end
 
+    it "can submit inside a form element" do
+      TestServer.route "/form", <<-HTML
+        <form action="/post">
+          <input type="text" id="search" name="q">
+        </form>
+      HTML
+      TestServer.route "/post", "<h1>You made it!</h1>"
+
+      with_session do |session|
+        session.navigate_to("http://localhost:3002/form")
+        element = session.find_element(:name, "q")
+        element.send_keys("foobar")
+        element.submit
+        session.current_url.should eq("http://localhost:3002/post?q=foobar")
+      end
+    end
+
+    it "raise an error on submit the element which is not inside a form" do
+      TestServer.route "/form", <<-HTML
+        <input type="text" id="search" name="q">
+      HTML
+      TestServer.route "/post", "<h1>You made it!</h1>"
+
+      with_session do |session|
+        session.navigate_to("http://localhost:3002/form")
+        element = session.find_element(:name, "q")
+        element.send_keys("foobar")
+        expect_raises Selenium::UnsupportedOperationError, "To submit an element, it must be nested inside a form element" do
+          element.submit
+        end
+      end
+    end
+
     it "can clear" do
       TestServer.route "/home", <<-HTML
         <input type="text" id="name" value="John">
diff --git a/src/selenium/element.cr b/src/selenium/element.cr
index 58fa541..abadeee 100644
--- a/src/selenium/element.cr
+++ b/src/selenium/element.cr
@@ -3,6 +3,8 @@ class Selenium::Element
   getter session_id : SessionId
   getter id : ElementId
 
+  ELEMENT_KEY = "element-6066-11e4-a52e-4f735466cecf"
+
   def initialize(@command_handler, @session_id, @id)
   end
 
@@ -10,6 +12,31 @@ class Selenium::Element
     command_handler.execute(:element_click, path_variables)
   end
 
+  def submit
+    script = <<-JS
+      /* submitForm */ var form = arguments[0];
+      while (form.nodeName != "FORM" && form.parentNode) {
+        form = form.parentNode;
+      }
+      if (!form) { throw Error('Unable to find containing form element'); }
+      if (!form.ownerDocument) { throw Error('Unable to find owning document'); }
+      var e = form.ownerDocument.createEvent('Event');
+      e.initEvent('submit', true, true);
+      if (form.dispatchEvent(e)) { HTMLFormElement.prototype.submit.call(form) }
+      JS
+
+    args = [{ELEMENT_KEY => id}]
+
+    parameters = {
+      script: script,
+      args:   args,
+    }
+
+    command_handler.execute(:execute_script, path_variables, parameters)
+  rescue Selenium::Error
+    raise UnsupportedOperationError.new("To submit an element, it must be nested inside a form element")
+  end
+
   def clear
     command_handler.execute(:element_clear, path_variables)
   end