Add the pdf plugin's source in src\pdf.

pdf/fading_controls.h

+// 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 PDF_FADING_CONTROLS_H_
+#define PDF_FADING_CONTROLS_H_
+
+#include <list>
+
+#include "pdf/control.h"
+
+namespace chrome_pdf {
+
+class FadingControls : public Control,
+                       public ControlOwner {
+ public:
+  enum FadingState {
+    NONE,
+    FADING_IN,
+    FADING_OUT
+  };
+
+  FadingControls();
+  virtual ~FadingControls();
+  virtual bool CreateFadingControls(
+      uint32 id, const pp::Rect& rc, bool visible,
+      Control::Owner* delegate, uint8 transparency);
+
+  // Control interface.
+  virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc);
+  virtual bool HandleEvent(const pp::InputEvent& event);
+  virtual void OnTimerFired(uint32 timer_id);
+  virtual void EventCaptureReleased();
+  virtual void MoveBy(const pp::Point& offset, bool invalidate);
+
+  // ControlOwner interface.
+  virtual void OnEvent(uint32 control_id, uint32 event_id, void* data);
+  virtual void Invalidate(uint32 control_id, const pp::Rect& rc);
+  virtual uint32 ScheduleTimer(uint32 control_id, uint32 timeout_ms);
+  virtual void SetEventCapture(uint32 control_id, bool set_capture);
+  virtual void SetCursor(uint32 control_id, PP_CursorType_Dev cursor_type);
+  virtual pp::Instance* GetInstance();
+
+  // FadingControls interface
+  // This function takes ownership of the control, and will destoy it
+  // when control is destroyed.
+  // Input control MUST be located inside FadingControls boundaries, and has
+  // this instance of FadingControls as a delegate.
+  virtual bool AddControl(Control* control);
+  virtual void RemoveControl(uint32 control_id);
+  virtual Control* GetControl(uint32 id);
+  virtual pp::Rect GetControlsRect();
+
+  // Expand/Shrink area which triggers inner control appearance to the left.
+  virtual bool ExpandLeft(int offset);
+
+  // Fade-in, then show controls for time_ms, and then fade-out. Any mouse
+  // event in this control area will interrupt splash mode.
+  virtual void Splash(uint32 time_ms);
+
+  uint8 current_transparency() const { return current_transparency_; }
+
+ private:
+  bool NotifyControls(const pp::InputEvent& event);
+  void FadeIn();
+  void FadeOut();
+  void OnFadingComplete();
+  void CancelSplashMode();
+
+  std::list<Control*> controls_;
+  FadingState state_;
+  uint8 current_transparency_;
+  uint32 fading_timer_id_;
+  uint32 current_capture_control_;
+  uint32 fading_timeout_;
+  uint32 alpha_shift_;
+  bool splash_;
+  uint32 splash_timeout_;
+};
+
+}  // namespace chrome_pdf
+
+#endif  // PDF_FADING_CONTROLS_H_
+