Implemnts the commands in webdriver to preform searching of elements on a page.

chrome/test/webdriver/commands/find_element_commands.h

Index: chrome/test/webdriver/commands/find_element_commands.h
diff --git a/chrome/test/webdriver/commands/find_element_commands.h b/chrome/test/webdriver/commands/find_element_commands.h
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+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_TEST_WEBDRIVER_COMMANDS_FIND_ELEMENT_COMMANDS_H_
+#define CHROME_TEST_WEBDRIVER_COMMANDS_FIND_ELEMENT_COMMANDS_H_
+
+#include <string>
+#include <vector>
+
+#include "chrome/test/webdriver/commands/command.h"
+#include "chrome/test/webdriver/commands/webdriver_command.h"
+
+namespace webdriver {
+
+class FindElementCommand : public WebDriverCommand {
+ public:
+  inline FindElementCommand(const std::vector<std::string>& path_segments,
+                            const DictionaryValue* const parameters,
+                            const bool find_one_element)
+      : WebDriverCommand(path_segments, parameters),
+        find_one_element_(find_one_element) {}
+  virtual ~FindElementCommand() {}
+
+  virtual bool Init(Response* const response);
+
+  virtual bool DoesPost() { return true; }
+  virtual void ExecutePost(Response* const response);
+
+ private:
+  virtual bool RequiresValidTab() { return false; }
+  const bool find_one_element_;
+  std::string root_element_id_;
+  std::string use_;
+  std::string value_;
+
+  DISALLOW_COPY_AND_ASSIGN(FindElementCommand);
+};
+
+// Search for an element on the page, starting from the document root.
+// The located element will be returned as a WebElement JSON object. See:
+// http://code.google.com/p/selenium/wiki/JsonWireProtocol#/session/element
+class FindOneElementCommand : public FindElementCommand {
+ public:
+  FindOneElementCommand(const std::vector<std::string>& path_segments,
+                        const DictionaryValue* const parameters)
+      : FindElementCommand(path_segments, parameters, true) {}
+  virtual ~FindOneElementCommand() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(FindOneElementCommand);
+};
+
+// Search for multiple elements on the page, starting from the identified
+// element. The located elements will be returned as a WebElement JSON
+// objects. See:
+// http://code.google.com/p/selenium/wiki/JsonWireProtocol#/session/:sessionId/element/:id/elements
+class FindManyElementsCommand : public FindElementCommand {
+ public:
+  FindManyElementsCommand(const std::vector<std::string>& path_segments,
+                          const DictionaryValue* const parameters)
+      : FindElementCommand(path_segments, parameters, false) {}
+  virtual ~FindManyElementsCommand() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(FindManyElementsCommand);
+};
+
+}  // namespace webdriver
+
+#endif  // CHROME_TEST_WEBDRIVER_COMMANDS_FIND_ELEMENT_COMMANDS_H_
+