1// Copyright (c) 2012 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 PDF_CONTROL_H_
6#define PDF_CONTROL_H_
7
8#include <list>
9
10#include "base/basictypes.h"
11#include "ppapi/c/dev/pp_cursor_type_dev.h"
12#include "ppapi/cpp/rect.h"
13
14namespace pp {
15class ImageData;
16class InputEvent;
17class Instance;
18}
19
20namespace chrome_pdf {
21
22const uint32 kInvalidControlId = 0;
23
24class Control {
25 public:
26  class Owner {
27   public:
28    virtual ~Owner() {}
29    virtual void OnEvent(uint32 control_id, uint32 event_id, void* data) = 0;
30    virtual void Invalidate(uint32 control_id, const pp::Rect& rc) = 0;
31    virtual uint32 ScheduleTimer(uint32 control_id, uint32 timeout_ms) = 0;
32    virtual void SetEventCapture(uint32 control_id, bool set_capture) = 0;
33    virtual void SetCursor(uint32 control_id,
34                           PP_CursorType_Dev cursor_type) = 0;
35    virtual pp::Instance* GetInstance() = 0;
36  };
37
38  Control();
39  virtual ~Control();
40  virtual bool Create(uint32 id, const pp::Rect& rc,
41                      bool visible, Owner* owner);
42
43  virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc) {}
44  virtual bool HandleEvent(const pp::InputEvent& event);
45  virtual void OnTimerFired(uint32 timer_id) {}
46  virtual void EventCaptureReleased() {}
47
48  // Paint control into multiple destination rects.
49  virtual void PaintMultipleRects(pp::ImageData* image_data,
50                                  const std::list<pp::Rect>& rects);
51
52  virtual void Show(bool visible, bool invalidate);
53  virtual void AdjustTransparency(uint8 transparency, bool invalidate);
54  virtual void MoveBy(const pp::Point& offset, bool invalidate);
55  virtual void SetRect(const pp::Rect& rc, bool invalidate);
56
57  void MoveTo(const pp::Point& origin, bool invalidate);
58
59  uint32 id() const { return id_; }
60  const pp::Rect& rect() const { return rc_; }
61  bool visible() const { return visible_; }
62  Owner* owner() { return owner_; }
63  uint8 transparency() const { return transparency_; }
64
65 private:
66  uint32 id_;
67  pp::Rect rc_;
68  bool visible_;
69  Owner* owner_;
70  uint8 transparency_;
71};
72
73typedef Control::Owner ControlOwner;
74
75}  // namespace chrome_pdf
76
77#endif  // PDF_CONTROL_H_
78