ui/ozone/platform/caca/caca_window.h

   1 // Copyright 2014 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 UI_OZONE_PLATFORM_CACA_CACA_WINDOW_H_
   6 #define UI_OZONE_PLATFORM_CACA_CACA_WINDOW_H_
   7
   8 #include <caca.h>
   9
  10 #include "base/debug/stack_trace.h"
  11 #include "base/macros.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "ui/events/platform/platform_event_dispatcher.h"
  14 #include "ui/gfx/geometry/size.h"
  15 #include "ui/gfx/native_widget_types.h"
  16 #include "ui/ozone/platform/caca/scoped_caca_types.h"
  17 #include "ui/platform_window/platform_window.h"
  18
  19 namespace ui {
  20
  21 class CacaEventSource;
  22 class CacaWindowManager;
  23 class PlatformWindowDelegate;
  24
  25 // Basic initialization of Libcaca. This needs to be shared between SFO and EFO
  26 // since both need the |display_| to draw and process events respectively.
  27 // Note, |canvas_| needs to be here since it is needed for creating a
  28 // |display_|.
  29 class CacaWindow : public PlatformWindow, public PlatformEventDispatcher {
  30  public:
  31   CacaWindow(PlatformWindowDelegate* delegate,
  32              CacaWindowManager* manager,
  33              CacaEventSource* event_source,
  34              const gfx::Rect& bounds);
  35   ~CacaWindow() override;
  36
  37   bool Initialize();
  38
  39   // Handlers for events received from libcaca.
  40   void OnCacaQuit();
  41   void OnCacaResize();
  42   void OnCacaEvent(ui::Event* event);
  43
  44   // This is the Caca canvas size.
  45   gfx::Size physical_size() const { return physical_size_; }
  46   gfx::Size bitmap_size() const { return bitmap_size_; }
  47   caca_display_t* display() const { return display_.get(); }
  48
  49   // PlatformWindow:
  50   gfx::Rect GetBounds() override;
  51   void SetBounds(const gfx::Rect& bounds) override;
  52   void Show() override;
  53   void Hide() override;
  54   void Close() override;
  55   void SetCapture() override;
  56   void ReleaseCapture() override;
  57   void ToggleFullscreen() override;
  58   void Maximize() override;
  59   void Minimize() override;
  60   void Restore() override;
  61   void SetCursor(PlatformCursor cursor) override;
  62   void MoveCursorTo(const gfx::Point& location) override;
  63   void ConfineCursorToBounds(const gfx::Rect& bounds) override;
  64
  65   // PlatformEventDispatcher:
  66   bool CanDispatchEvent(const PlatformEvent& event) override;
  67   uint32_t DispatchEvent(const PlatformEvent& event) override;
  68
  69  private:
  70   // Event polling.
  71   void TryProcessingEvent();
  72
  73   // Sync sizes with libcaca.
  74   void UpdateDisplaySize();
  75
  76   PlatformWindowDelegate* delegate_;
  77   CacaWindowManager* manager_;
  78   CacaEventSource* event_source_;
  79   gfx::AcceleratedWidget widget_;
  80
  81   ScopedCacaCanvas canvas_;
  82   ScopedCacaDisplay display_;
  83
  84   // Size of the console in characters. This can be changed by setting
  85   // CACA_GEOMETRY environment variable.
  86   gfx::Size physical_size_;
  87
  88   // Size of the backing buffer we draw into. Size in pixels.
  89   gfx::Size bitmap_size_;
  90
  91   base::WeakPtrFactory<CacaWindow> weak_ptr_factory_;
  92
  93   DISALLOW_COPY_AND_ASSIGN(CacaWindow);
  94 };
  95
  96 }  // namespace ui
  97
  98 #endif  // UI_OZONE_PLATFORM_CACA_CACA_WINDOW_H_