Add base to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 115 insertions, 0 deletions

diff --git a/base/event_recorder.h b/base/event_recorder.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef BASE_EVENT_RECORDER_H_
+#define BASE_EVENT_RECORDER_H_
+
+#include <string>
+#include <windows.h>
+#include "base/basictypes.h"
+
+namespace base {
+
+// A class for recording and playing back keyboard and mouse input events.
+//
+// Note - if you record events, and the playback with the windows in
+//        different sizes or positions, the playback will fail.  When
+//        recording and playing, you should move the relevant windows
+//        to constant sizes and locations.
+// TODO(mbelshe) For now this is a singleton.  I believe that this class
+//        could be easily modified to:
+//             support two simultaneous recorders
+//             be playing back events while already recording events.
+//        Why?  Imagine if the product had a "record a macro" feature.
+//        You might be recording globally, while recording or playing back
+//        a macro.  I don't think two playbacks make sense.
+class EventRecorder {
+ public:
+  // Get the singleton EventRecorder.
+  // We can only handle one recorder/player at a time.
+  static EventRecorder* current() {
+    if (!current_)
+      current_ = new EventRecorder();
+    return current_;
+  }
+
+  // Starts recording events.
+  // Will clobber the file if it already exists.
+  // Returns true on success, or false if an error occurred.
+  bool StartRecording(std::wstring &filename);
+
+  // Stops recording.
+  void StopRecording();
+
+  // Is the EventRecorder currently recording.
+  bool is_recording() const { return is_recording_; }
+
+  // Plays events previously recorded.
+  // Returns true on success, or false if an error occurred.
+  bool StartPlayback(std::wstring &filename);
+
+  // Stops playback.
+  void StopPlayback();
+
+  // Is the EventRecorder currently playing.
+  bool is_playing() const { return is_playing_; }
+
+  // C-style callbacks for the EventRecorder.
+  // Used for internal purposes only.
+  LRESULT RecordWndProc(int nCode, WPARAM wParam, LPARAM lParam);
+  LRESULT PlaybackWndProc(int nCode, WPARAM wParam, LPARAM lParam);
+
+ private:
+  // Create a new EventRecorder.  Events are saved to the file filename.
+  // If the file already exists, it will be deleted before recording
+  // starts.
+  explicit EventRecorder()
+      : is_recording_(false),
+        is_playing_(false),
+        journal_hook_(NULL),
+        file_(NULL) {
+  }
+  ~EventRecorder();
+
+  static EventRecorder* current_;  // Our singleton.
+
+  bool is_recording_;
+  bool is_playing_;
+  HHOOK journal_hook_;
+  FILE* file_;
+  EVENTMSG playback_msg_;
+  int playback_first_msg_time_;
+  int playback_start_time_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(EventRecorder);
+};
+
+}  // namespace base
+
+#endif // BASE_EVENT_RECORDER_H_