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 aura { 17 class RootWindow; 18 } 19 20 namespace ash { 21 class ScreenshotDelegate; 22 23 // The view of taking partial screenshot, i.e.: drawing region 24 // rectangles during drag, and changing the mouse cursor to indicate 25 // the current mode. 26 class ASH_EXPORT PartialScreenshotView : public views::WidgetDelegateView { 27 public: 28 // Starts the UI for taking partial screenshot; dragging to select a region. 29 // PartialScreenshotViews manage their own lifetime so caller must not delete 30 // the returned PartialScreenshotViews. 31 static std::vector<PartialScreenshotView*> 32 StartPartialScreenshot(ScreenshotDelegate* screenshot_delegate); 33 34 private: 35 FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicMouse); 36 FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicTouch); 37 38 class OverlayDelegate; 39 40 PartialScreenshotView(OverlayDelegate* overlay_delegate, 41 ScreenshotDelegate* screenshot_delegate); 42 virtual ~PartialScreenshotView(); 43 44 // Initializes partial screenshot UI widget for |root_window|. 45 void Init(aura::RootWindow* root_window); 46 47 // Returns the currently selected region. 48 gfx::Rect GetScreenshotRect() const; 49 50 void OnSelectionStarted(const gfx::Point& position); 51 void OnSelectionChanged(const gfx::Point& position); 52 void OnSelectionFinished(); 53 54 // Overridden from views::View: 55 virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE; 56 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; 57 virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE; 58 virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE; 59 virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE; 60 virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE; 61 virtual void OnMouseCaptureLost() OVERRIDE; 62 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; 63 64 bool is_dragging_; 65 gfx::Point start_position_; 66 gfx::Point current_position_; 67 68 // The delegate to receive Cancel. No ownership. 69 OverlayDelegate* overlay_delegate_; 70 71 // ScreenshotDelegate to take the actual screenshot. No ownership. 72 ScreenshotDelegate* screenshot_delegate_; 73 74 DISALLOW_COPY_AND_ASSIGN(PartialScreenshotView); 75 }; 76 77 } // namespace ash 78 79 #endif // #ifndef ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_ 80
