media/cast/test/utility/input_builder.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_CAST_TEST_UTILITY_INPUT_BUILDER_
   6 #define MEDIA_CAST_TEST_UTILITY_INPUT_BUILDER_
   7
   8 #include <string>
   9
  10 namespace media {
  11 namespace cast {
  12 namespace test {
  13
  14 // This class handles general user input to the application. The user will be
  15 // displayed with the title string and be given a default value. When forced
  16 // a range, the input values should be within low_range to high_range.
  17 // Setting low and high to INT_MIN/INT_MAX is equivalent to not setting a range.
  18 class InputBuilder {
  19  public:
  20   InputBuilder(const std::string& title,
  21                const std::string& default_value,
  22                int low_range,
  23                int high_range);
  24   virtual ~InputBuilder();
  25
  26   // Ask the user for input, reads input from the input source and returns
  27   // the answer. This method will keep asking the user until a correct answer
  28   // is returned and is thereby guaranteed to return a response that is
  29   // acceptable within the predefined range.
  30   // Input will be returned in either string or int format, base on the function
  31   // called.
  32   std::string GetStringInput() const;
  33   int GetIntInput() const;
  34
  35  private:
  36   bool ValidateInput(const std::string& input) const;
  37
  38   const std::string title_;
  39   const std::string default_value_;
  40   // Low and high range values for input validation.
  41   const int low_range_;
  42   const int high_range_;
  43 };
  44
  45 }  // namespace test
  46 }  // namespace cast
  47 }  // namespace media
  48
  49 #endif  // MEDIA_CAST_TEST_UTILITY_INPUT_BUILDER_