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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef VIEWS_EVENTS_EVENT_H_ | 5 #ifndef VIEWS_EVENTS_EVENT_H_ |
6 #define VIEWS_EVENTS_EVENT_H_ | 6 #define VIEWS_EVENTS_EVENT_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "base/time.h" | 10 #include "base/time.h" |
11 #include "ui/base/events.h" | 11 #include "ui/base/events.h" |
12 #include "ui/base/keycodes/keyboard_codes.h" | 12 #include "ui/base/keycodes/keyboard_codes.h" |
13 #include "ui/gfx/point.h" | 13 #include "ui/gfx/point.h" |
14 #include "views/native_types.h" | 14 #include "views/native_types.h" |
15 #include "views/views_api.h" | 15 #include "views/views_export.h" |
16 | 16 |
17 #if defined(USE_X11) | 17 #if defined(USE_X11) |
18 typedef union _XEvent XEvent; | 18 typedef union _XEvent XEvent; |
19 #endif | 19 #endif |
20 | 20 |
21 namespace ui { | 21 namespace ui { |
22 class OSExchangeData; | 22 class OSExchangeData; |
23 } | 23 } |
24 using ui::OSExchangeData; | 24 using ui::OSExchangeData; |
25 | 25 |
26 namespace views { | 26 namespace views { |
27 | 27 |
28 class View; | 28 class View; |
29 | 29 |
30 namespace internal { | 30 namespace internal { |
31 class NativeWidgetView; | 31 class NativeWidgetView; |
32 class RootView; | 32 class RootView; |
33 } | 33 } |
34 | 34 |
35 #if defined(OS_WIN) | 35 #if defined(OS_WIN) |
36 VIEWS_API bool IsClientMouseEvent(const views::NativeEvent& native_event); | 36 VIEWS_EXPORT bool IsClientMouseEvent(const views::NativeEvent& native_event); |
37 VIEWS_API bool IsNonClientMouseEvent(const views::NativeEvent& native_event); | 37 VIEWS_EXPORT bool IsNonClientMouseEvent(const views::NativeEvent& native_event); |
38 #endif | 38 #endif |
39 | 39 |
40 //////////////////////////////////////////////////////////////////////////////// | 40 //////////////////////////////////////////////////////////////////////////////// |
41 // | 41 // |
42 // Event class | 42 // Event class |
43 // | 43 // |
44 // An event encapsulates an input event that can be propagated into view | 44 // An event encapsulates an input event that can be propagated into view |
45 // hierarchies. An event has a type, some flags and a time stamp. | 45 // hierarchies. An event has a type, some flags and a time stamp. |
46 // | 46 // |
47 // Each major event type has a corresponding Event subclass. | 47 // Each major event type has a corresponding Event subclass. |
48 // | 48 // |
49 // Events are immutable but support copy | 49 // Events are immutable but support copy |
50 // | 50 // |
51 //////////////////////////////////////////////////////////////////////////////// | 51 //////////////////////////////////////////////////////////////////////////////// |
52 class VIEWS_API Event { | 52 class VIEWS_EXPORT Event { |
53 public: | 53 public: |
54 // This type exists to distinguish between the NativeEvent and NativeEvent2 | 54 // This type exists to distinguish between the NativeEvent and NativeEvent2 |
55 // constructors. | 55 // constructors. |
56 // TODO(beng): remove once we rid views of Gtk/Gdk. | 56 // TODO(beng): remove once we rid views of Gtk/Gdk. |
57 struct FromNativeEvent2 {}; | 57 struct FromNativeEvent2 {}; |
58 | 58 |
59 const NativeEvent& native_event() const { return native_event_; } | 59 const NativeEvent& native_event() const { return native_event_; } |
60 const NativeEvent2& native_event_2() const { return native_event_2_; } | 60 const NativeEvent2& native_event_2() const { return native_event_2_; } |
61 ui::EventType type() const { return type_; } | 61 ui::EventType type() const { return type_; } |
62 const base::Time& time_stamp() const { return time_stamp_; } | 62 const base::Time& time_stamp() const { return time_stamp_; } |
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131 }; | 131 }; |
132 | 132 |
133 //////////////////////////////////////////////////////////////////////////////// | 133 //////////////////////////////////////////////////////////////////////////////// |
134 // | 134 // |
135 // LocatedEvent class | 135 // LocatedEvent class |
136 // | 136 // |
137 // A generic event that is used for any events that is located at a specific | 137 // A generic event that is used for any events that is located at a specific |
138 // position in the screen. | 138 // position in the screen. |
139 // | 139 // |
140 //////////////////////////////////////////////////////////////////////////////// | 140 //////////////////////////////////////////////////////////////////////////////// |
141 class VIEWS_API LocatedEvent : public Event { | 141 class VIEWS_EXPORT LocatedEvent : public Event { |
142 public: | 142 public: |
143 int x() const { return location_.x(); } | 143 int x() const { return location_.x(); } |
144 int y() const { return location_.y(); } | 144 int y() const { return location_.y(); } |
145 const gfx::Point& location() const { return location_; } | 145 const gfx::Point& location() const { return location_; } |
146 | 146 |
147 protected: | 147 protected: |
148 explicit LocatedEvent(NativeEvent native_event); | 148 explicit LocatedEvent(NativeEvent native_event); |
149 LocatedEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); | 149 LocatedEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); |
150 | 150 |
151 // TODO(msw): Kill this legacy constructor when we update uses. | 151 // TODO(msw): Kill this legacy constructor when we update uses. |
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166 | 166 |
167 class TouchEvent; | 167 class TouchEvent; |
168 | 168 |
169 //////////////////////////////////////////////////////////////////////////////// | 169 //////////////////////////////////////////////////////////////////////////////// |
170 // | 170 // |
171 // MouseEvent class | 171 // MouseEvent class |
172 // | 172 // |
173 // A mouse event is used for any input event related to the mouse. | 173 // A mouse event is used for any input event related to the mouse. |
174 // | 174 // |
175 //////////////////////////////////////////////////////////////////////////////// | 175 //////////////////////////////////////////////////////////////////////////////// |
176 class VIEWS_API MouseEvent : public LocatedEvent { | 176 class VIEWS_EXPORT MouseEvent : public LocatedEvent { |
177 public: | 177 public: |
178 explicit MouseEvent(NativeEvent native_event); | 178 explicit MouseEvent(NativeEvent native_event); |
179 MouseEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); | 179 MouseEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); |
180 | 180 |
181 // Create a new MouseEvent which is identical to the provided model. | 181 // Create a new MouseEvent which is identical to the provided model. |
182 // If source / target views are provided, the model location will be converted | 182 // If source / target views are provided, the model location will be converted |
183 // from |source| coordinate system to |target| coordinate system. | 183 // from |source| coordinate system to |target| coordinate system. |
184 MouseEvent(const MouseEvent& model, View* source, View* target); | 184 MouseEvent(const MouseEvent& model, View* source, View* target); |
185 | 185 |
186 // Creates a new MouseEvent from a TouchEvent. The location of the TouchEvent | 186 // Creates a new MouseEvent from a TouchEvent. The location of the TouchEvent |
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238 | 238 |
239 //////////////////////////////////////////////////////////////////////////////// | 239 //////////////////////////////////////////////////////////////////////////////// |
240 // | 240 // |
241 // TouchEvent class | 241 // TouchEvent class |
242 // | 242 // |
243 // A touch event is generated by touch screen and advanced track | 243 // A touch event is generated by touch screen and advanced track |
244 // pad devices. There is a deliberate direct correspondence between | 244 // pad devices. There is a deliberate direct correspondence between |
245 // TouchEvent and PlatformTouchPoint. | 245 // TouchEvent and PlatformTouchPoint. |
246 // | 246 // |
247 //////////////////////////////////////////////////////////////////////////////// | 247 //////////////////////////////////////////////////////////////////////////////// |
248 class VIEWS_API TouchEvent : public LocatedEvent { | 248 class VIEWS_EXPORT TouchEvent : public LocatedEvent { |
249 public: | 249 public: |
250 TouchEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); | 250 TouchEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); |
251 | 251 |
252 // Create a new touch event. | 252 // Create a new touch event. |
253 TouchEvent(ui::EventType type, | 253 TouchEvent(ui::EventType type, |
254 int x, | 254 int x, |
255 int y, | 255 int y, |
256 int flags, | 256 int flags, |
257 int touch_id, | 257 int touch_id, |
258 float radius_x, | 258 float radius_x, |
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296 | 296 |
297 DISALLOW_COPY_AND_ASSIGN(TouchEvent); | 297 DISALLOW_COPY_AND_ASSIGN(TouchEvent); |
298 }; | 298 }; |
299 | 299 |
300 //////////////////////////////////////////////////////////////////////////////// | 300 //////////////////////////////////////////////////////////////////////////////// |
301 // KeyEvent class | 301 // KeyEvent class |
302 // | 302 // |
303 // KeyEvent encapsulates keyboard input events - key press and release. | 303 // KeyEvent encapsulates keyboard input events - key press and release. |
304 // | 304 // |
305 //////////////////////////////////////////////////////////////////////////////// | 305 //////////////////////////////////////////////////////////////////////////////// |
306 class VIEWS_API KeyEvent : public Event { | 306 class VIEWS_EXPORT KeyEvent : public Event { |
307 public: | 307 public: |
308 explicit KeyEvent(NativeEvent native_event); | 308 explicit KeyEvent(NativeEvent native_event); |
309 KeyEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); | 309 KeyEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); |
310 | 310 |
311 // Creates a new KeyEvent synthetically (i.e. not in response to an input | 311 // Creates a new KeyEvent synthetically (i.e. not in response to an input |
312 // event from the host environment). This is typically only used in testing as | 312 // event from the host environment). This is typically only used in testing as |
313 // some metadata obtainable from the underlying native event is not present. | 313 // some metadata obtainable from the underlying native event is not present. |
314 // It's also used by input methods to fabricate keyboard events. | 314 // It's also used by input methods to fabricate keyboard events. |
315 KeyEvent(ui::EventType type, | 315 KeyEvent(ui::EventType type, |
316 ui::KeyboardCode key_code, | 316 ui::KeyboardCode key_code, |
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369 }; | 369 }; |
370 | 370 |
371 //////////////////////////////////////////////////////////////////////////////// | 371 //////////////////////////////////////////////////////////////////////////////// |
372 // | 372 // |
373 // MouseWheelEvent class | 373 // MouseWheelEvent class |
374 // | 374 // |
375 // A MouseWheelEvent is used to propagate mouse wheel user events. | 375 // A MouseWheelEvent is used to propagate mouse wheel user events. |
376 // Note: e.GetOffset() > 0 means scroll up / left. | 376 // Note: e.GetOffset() > 0 means scroll up / left. |
377 // | 377 // |
378 //////////////////////////////////////////////////////////////////////////////// | 378 //////////////////////////////////////////////////////////////////////////////// |
379 class VIEWS_API MouseWheelEvent : public MouseEvent { | 379 class VIEWS_EXPORT MouseWheelEvent : public MouseEvent { |
380 public: | 380 public: |
381 // See |offset| for details. | 381 // See |offset| for details. |
382 static const int kWheelDelta; | 382 static const int kWheelDelta; |
383 | 383 |
384 explicit MouseWheelEvent(NativeEvent native_event); | 384 explicit MouseWheelEvent(NativeEvent native_event); |
385 MouseWheelEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); | 385 MouseWheelEvent(NativeEvent2 native_event_2, FromNativeEvent2 from_native); |
386 | 386 |
387 // The amount to scroll. This is in multiples of kWheelDelta. | 387 // The amount to scroll. This is in multiples of kWheelDelta. |
388 int offset() const { return offset_; } | 388 int offset() const { return offset_; } |
389 | 389 |
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402 }; | 402 }; |
403 | 403 |
404 //////////////////////////////////////////////////////////////////////////////// | 404 //////////////////////////////////////////////////////////////////////////////// |
405 // | 405 // |
406 // DropTargetEvent class | 406 // DropTargetEvent class |
407 // | 407 // |
408 // A DropTargetEvent is sent to the view the mouse is over during a drag and | 408 // A DropTargetEvent is sent to the view the mouse is over during a drag and |
409 // drop operation. | 409 // drop operation. |
410 // | 410 // |
411 //////////////////////////////////////////////////////////////////////////////// | 411 //////////////////////////////////////////////////////////////////////////////// |
412 class VIEWS_API DropTargetEvent : public LocatedEvent { | 412 class VIEWS_EXPORT DropTargetEvent : public LocatedEvent { |
413 public: | 413 public: |
414 DropTargetEvent(const OSExchangeData& data, | 414 DropTargetEvent(const OSExchangeData& data, |
415 int x, | 415 int x, |
416 int y, | 416 int y, |
417 int source_operations) | 417 int source_operations) |
418 : LocatedEvent(ui::ET_DROP_TARGET_EVENT, gfx::Point(x, y), 0), | 418 : LocatedEvent(ui::ET_DROP_TARGET_EVENT, gfx::Point(x, y), 0), |
419 data_(data), | 419 data_(data), |
420 source_operations_(source_operations) { | 420 source_operations_(source_operations) { |
421 // TODO(msw): Hook up key state flags for CTRL + drag and drop, etc. | 421 // TODO(msw): Hook up key state flags for CTRL + drag and drop, etc. |
422 } | 422 } |
423 | 423 |
424 const OSExchangeData& data() const { return data_; } | 424 const OSExchangeData& data() const { return data_; } |
425 int source_operations() const { return source_operations_; } | 425 int source_operations() const { return source_operations_; } |
426 | 426 |
427 private: | 427 private: |
428 // Data associated with the drag/drop session. | 428 // Data associated with the drag/drop session. |
429 const OSExchangeData& data_; | 429 const OSExchangeData& data_; |
430 | 430 |
431 // Bitmask of supported ui::DragDropTypes::DragOperation by the source. | 431 // Bitmask of supported ui::DragDropTypes::DragOperation by the source. |
432 int source_operations_; | 432 int source_operations_; |
433 | 433 |
434 DISALLOW_COPY_AND_ASSIGN(DropTargetEvent); | 434 DISALLOW_COPY_AND_ASSIGN(DropTargetEvent); |
435 }; | 435 }; |
436 | 436 |
437 } // namespace views | 437 } // namespace views |
438 | 438 |
439 #endif // VIEWS_EVENTS_EVENT_H_ | 439 #endif // VIEWS_EVENTS_EVENT_H_ |
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