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 ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_ 6 #define ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_ 7 8 #include <vector> 9 10 #include "ash/ash_export.h" 11 #include "base/compiler_specific.h" 12 #include "base/gtest_prod_util.h" 13 #include "ui/gfx/point.h" 14 #include "ui/views/widget/widget_delegate.h" 15 16 namespace ash { 17 class ScreenshotDelegate; 18 19 // The view of taking partial screenshot, i.e.: drawing region 20 // rectangles during drag, and changing the mouse cursor to indicate 21 // the current mode. 22 class ASH_EXPORT PartialScreenshotView : public views::WidgetDelegateView { 23 public: 24 // Starts the UI for taking partial screenshot; dragging to select a region. 25 // PartialScreenshotViews manage their own lifetime so caller must not delete 26 // the returned PartialScreenshotViews. 27 static std::vector<PartialScreenshotView*> 28 StartPartialScreenshot(ScreenshotDelegate* screenshot_delegate); 29 30 private: 31 FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicMouse); 32 FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicTouch); 33 34 class OverlayDelegate; 35 36 PartialScreenshotView(OverlayDelegate* overlay_delegate, 37 ScreenshotDelegate* screenshot_delegate); 38 virtual ~PartialScreenshotView(); 39 40 // Initializes partial screenshot UI widget for |root_window|. 41 void Init(aura::Window* root_window); 42 43 // Returns the currently selected region. 44 gfx::Rect GetScreenshotRect() const; 45 46 void OnSelectionStarted(const gfx::Point& position); 47 void OnSelectionChanged(const gfx::Point& position); 48 void OnSelectionFinished(); 49 50 // Overridden from views::View: 51 virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE; 52 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; 53 virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE; 54 virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE; 55 virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE; 56 virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE; 57 virtual void OnMouseCaptureLost() OVERRIDE; 58 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; 59 60 bool is_dragging_; 61 gfx::Point start_position_; 62 gfx::Point current_position_; 63 64 // The delegate to receive Cancel. No ownership. 65 OverlayDelegate* overlay_delegate_; 66 67 // ScreenshotDelegate to take the actual screenshot. No ownership. 68 ScreenshotDelegate* screenshot_delegate_; 69 70 DISALLOW_COPY_AND_ASSIGN(PartialScreenshotView); 71 }; 72 73 } // namespace ash 74 75 #endif // #ifndef ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_ 76
