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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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