ui/aura/demo/demo_main.cc

   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 #include "base/at_exit.h"
   6 #include "base/command_line.h"
   7 #include "base/i18n/icu_util.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "third_party/skia/include/core/SkXfermode.h"
  11 #include "ui/aura/client/default_capture_client.h"
  12 #include "ui/aura/client/window_tree_client.h"
  13 #include "ui/aura/env.h"
  14 #include "ui/aura/test/test_focus_client.h"
  15 #include "ui/aura/test/test_screen.h"
  16 #include "ui/aura/window.h"
  17 #include "ui/aura/window_delegate.h"
  18 #include "ui/aura/window_tree_host.h"
  19 #include "ui/base/hit_test.h"
  20 #include "ui/compositor/test/in_process_context_factory.h"
  21 #include "ui/events/event.h"
  22 #include "ui/gfx/canvas.h"
  23 #include "ui/gfx/rect.h"
  24 #include "ui/gl/gl_surface.h"
  25
  26 #if defined(USE_X11)
  27 #include "ui/gfx/x/x11_connection.h"
  28 #endif
  29
  30 #if defined(OS_WIN)
  31 #include "ui/gfx/win/dpi.h"
  32 #endif
  33
  34 namespace {
  35
  36 // Trivial WindowDelegate implementation that draws a colored background.
  37 class DemoWindowDelegate : public aura::WindowDelegate {
  38  public:
  39   explicit DemoWindowDelegate(SkColor color) : color_(color) {}
  40
  41   // Overridden from WindowDelegate:
  42   virtual gfx::Size GetMinimumSize() const OVERRIDE {
  43     return gfx::Size();
  44   }
  45
  46   virtual gfx::Size GetMaximumSize() const OVERRIDE {
  47     return gfx::Size();
  48   }
  49
  50   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
  51                                const gfx::Rect& new_bounds) OVERRIDE {}
  52   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE {
  53     return gfx::kNullCursor;
  54   }
  55   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE {
  56     return HTCAPTION;
  57   }
  58   virtual bool ShouldDescendIntoChildForEventHandling(
  59       aura::Window* child,
  60       const gfx::Point& location) OVERRIDE {
  61     return true;
  62   }
  63   virtual bool CanFocus() OVERRIDE { return true; }
  64   virtual void OnCaptureLost() OVERRIDE {}
  65   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
  66     canvas->DrawColor(color_, SkXfermode::kSrc_Mode);
  67   }
  68   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE {}
  69   virtual void OnWindowDestroying(aura::Window* window) OVERRIDE {}
  70   virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE {}
  71   virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE {}
  72   virtual bool HasHitTestMask() const OVERRIDE { return false; }
  73   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE {}
  74
  75  private:
  76   SkColor color_;
  77
  78   DISALLOW_COPY_AND_ASSIGN(DemoWindowDelegate);
  79 };
  80
  81 class DemoWindowTreeClient : public aura::client::WindowTreeClient {
  82  public:
  83   explicit DemoWindowTreeClient(aura::Window* window) : window_(window) {
  84     aura::client::SetWindowTreeClient(window_, this);
  85   }
  86
  87   virtual ~DemoWindowTreeClient() {
  88     aura::client::SetWindowTreeClient(window_, NULL);
  89   }
  90
  91   // Overridden from aura::client::WindowTreeClient:
  92   virtual aura::Window* GetDefaultParent(aura::Window* context,
  93                                          aura::Window* window,
  94                                          const gfx::Rect& bounds) OVERRIDE {
  95     if (!capture_client_) {
  96       capture_client_.reset(
  97           new aura::client::DefaultCaptureClient(window_->GetRootWindow()));
  98     }
  99     return window_;
 100   }
 101
 102  private:
 103   aura::Window* window_;
 104
 105   scoped_ptr<aura::client::DefaultCaptureClient> capture_client_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(DemoWindowTreeClient);
 108 };
 109
 110 int DemoMain() {
 111 #if defined(USE_X11)
 112   // This demo uses InProcessContextFactory which uses X on a separate Gpu
 113   // thread.
 114   gfx::InitializeThreadedX11();
 115 #endif
 116
 117   gfx::GLSurface::InitializeOneOff();
 118
 119 #if defined(OS_WIN)
 120   gfx::InitDeviceScaleFactor(1.0f);
 121 #endif
 122
 123   // The ContextFactory must exist before any Compositors are created.
 124   scoped_ptr<ui::InProcessContextFactory> context_factory(
 125       new ui::InProcessContextFactory());
 126
 127   // Create the message-loop here before creating the root window.
 128   base::MessageLoopForUI message_loop;
 129
 130   aura::Env::CreateInstance(true);
 131   aura::Env::GetInstance()->set_context_factory(context_factory.get());
 132   scoped_ptr<aura::TestScreen> test_screen(
 133       aura::TestScreen::Create(gfx::Size()));
 134   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, test_screen.get());
 135   scoped_ptr<aura::WindowTreeHost> host(
 136       test_screen->CreateHostForPrimaryDisplay());
 137   scoped_ptr<DemoWindowTreeClient> window_tree_client(
 138       new DemoWindowTreeClient(host->window()));
 139   aura::test::TestFocusClient focus_client;
 140   aura::client::SetFocusClient(host->window(), &focus_client);
 141
 142   // Create a hierarchy of test windows.
 143   DemoWindowDelegate window_delegate1(SK_ColorBLUE);
 144   aura::Window window1(&window_delegate1);
 145   window1.set_id(1);
 146   window1.Init(aura::WINDOW_LAYER_TEXTURED);
 147   window1.SetBounds(gfx::Rect(100, 100, 400, 400));
 148   window1.Show();
 149   aura::client::ParentWindowWithContext(&window1, host->window(), gfx::Rect());
 150
 151   DemoWindowDelegate window_delegate2(SK_ColorRED);
 152   aura::Window window2(&window_delegate2);
 153   window2.set_id(2);
 154   window2.Init(aura::WINDOW_LAYER_TEXTURED);
 155   window2.SetBounds(gfx::Rect(200, 200, 350, 350));
 156   window2.Show();
 157   aura::client::ParentWindowWithContext(&window2, host->window(), gfx::Rect());
 158
 159   DemoWindowDelegate window_delegate3(SK_ColorGREEN);
 160   aura::Window window3(&window_delegate3);
 161   window3.set_id(3);
 162   window3.Init(aura::WINDOW_LAYER_TEXTURED);
 163   window3.SetBounds(gfx::Rect(10, 10, 50, 50));
 164   window3.Show();
 165   window2.AddChild(&window3);
 166
 167   host->Show();
 168   base::MessageLoopForUI::current()->Run();
 169
 170   return 0;
 171 }
 172
 173 }  // namespace
 174
 175 int main(int argc, char** argv) {
 176   CommandLine::Init(argc, argv);
 177
 178   // The exit manager is in charge of calling the dtors of singleton objects.
 179   base::AtExitManager exit_manager;
 180
 181   base::i18n::InitializeICU();
 182
 183   return DemoMain();
 184 }