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/root_window.h"
  15 #include "ui/aura/test/test_focus_client.h"
  16 #include "ui/aura/test/test_screen.h"
  17 #include "ui/aura/window.h"
  18 #include "ui/aura/window_delegate.h"
  19 #include "ui/base/hit_test.h"
  20 #include "ui/compositor/test/context_factories_for_test.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 "base/message_loop/message_pump_x11.h"
  28 #endif
  29
  30 namespace {
  31
  32 // Trivial WindowDelegate implementation that draws a colored background.
  33 class DemoWindowDelegate : public aura::WindowDelegate {
  34  public:
  35   explicit DemoWindowDelegate(SkColor color) : color_(color) {}
  36
  37   // Overridden from WindowDelegate:
  38   virtual gfx::Size GetMinimumSize() const OVERRIDE {
  39     return gfx::Size();
  40   }
  41
  42   virtual gfx::Size GetMaximumSize() const OVERRIDE {
  43     return gfx::Size();
  44   }
  45
  46   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
  47                                const gfx::Rect& new_bounds) OVERRIDE {}
  48   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE {
  49     return gfx::kNullCursor;
  50   }
  51   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE {
  52     return HTCAPTION;
  53   }
  54   virtual bool ShouldDescendIntoChildForEventHandling(
  55       aura::Window* child,
  56       const gfx::Point& location) OVERRIDE {
  57     return true;
  58   }
  59   virtual bool CanFocus() OVERRIDE { return true; }
  60   virtual void OnCaptureLost() OVERRIDE {}
  61   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
  62     canvas->DrawColor(color_, SkXfermode::kSrc_Mode);
  63   }
  64   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE {}
  65   virtual void OnWindowDestroying() OVERRIDE {}
  66   virtual void OnWindowDestroyed() OVERRIDE {}
  67   virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE {}
  68   virtual bool HasHitTestMask() const OVERRIDE { return false; }
  69   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE {}
  70   virtual void DidRecreateLayer(ui::Layer* old_layer,
  71                                 ui::Layer* new_layer) OVERRIDE {}
  72
  73  private:
  74   SkColor color_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(DemoWindowDelegate);
  77 };
  78
  79 class DemoWindowTreeClient : public aura::client::WindowTreeClient {
  80  public:
  81   explicit DemoWindowTreeClient(aura::Window* window) : window_(window) {
  82     aura::client::SetWindowTreeClient(window_, this);
  83   }
  84
  85   virtual ~DemoWindowTreeClient() {
  86     aura::client::SetWindowTreeClient(window_, NULL);
  87   }
  88
  89   // Overridden from aura::client::WindowTreeClient:
  90   virtual aura::Window* GetDefaultParent(aura::Window* context,
  91                                          aura::Window* window,
  92                                          const gfx::Rect& bounds) OVERRIDE {
  93     if (!capture_client_) {
  94       capture_client_.reset(
  95           new aura::client::DefaultCaptureClient(window_->GetRootWindow()));
  96     }
  97     return window_;
  98   }
  99
 100  private:
 101   aura::Window* window_;
 102
 103   scoped_ptr<aura::client::DefaultCaptureClient> capture_client_;
 104
 105   DISALLOW_COPY_AND_ASSIGN(DemoWindowTreeClient);
 106 };
 107
 108 int DemoMain() {
 109   // Create the message-loop here before creating the root window.
 110   base::MessageLoopForUI message_loop;
 111
 112   gfx::GLSurface::InitializeOneOff();
 113
 114   // The ContextFactory must exist before any Compositors are created.
 115   bool allow_test_contexts = false;
 116   ui::InitializeContextFactoryForTests(allow_test_contexts);
 117
 118   aura::Env::CreateInstance();
 119   scoped_ptr<aura::TestScreen> test_screen(aura::TestScreen::Create());
 120   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, test_screen.get());
 121   scoped_ptr<aura::RootWindow> root_window(
 122       test_screen->CreateRootWindowForPrimaryDisplay());
 123   scoped_ptr<DemoWindowTreeClient> window_tree_client(new DemoWindowTreeClient(
 124       root_window->window()));
 125   aura::test::TestFocusClient focus_client;
 126   aura::client::SetFocusClient(root_window->window(), &focus_client);
 127
 128   // Create a hierarchy of test windows.
 129   DemoWindowDelegate window_delegate1(SK_ColorBLUE);
 130   aura::Window window1(&window_delegate1);
 131   window1.set_id(1);
 132   window1.Init(aura::WINDOW_LAYER_TEXTURED);
 133   window1.SetBounds(gfx::Rect(100, 100, 400, 400));
 134   window1.Show();
 135   aura::client::ParentWindowWithContext(
 136       &window1, root_window->window(), gfx::Rect());
 137
 138   DemoWindowDelegate window_delegate2(SK_ColorRED);
 139   aura::Window window2(&window_delegate2);
 140   window2.set_id(2);
 141   window2.Init(aura::WINDOW_LAYER_TEXTURED);
 142   window2.SetBounds(gfx::Rect(200, 200, 350, 350));
 143   window2.Show();
 144   aura::client::ParentWindowWithContext(
 145       &window2, root_window->window(), gfx::Rect());
 146
 147   DemoWindowDelegate window_delegate3(SK_ColorGREEN);
 148   aura::Window window3(&window_delegate3);
 149   window3.set_id(3);
 150   window3.Init(aura::WINDOW_LAYER_TEXTURED);
 151   window3.SetBounds(gfx::Rect(10, 10, 50, 50));
 152   window3.Show();
 153   window2.AddChild(&window3);
 154
 155   root_window->host()->Show();
 156   base::MessageLoopForUI::current()->Run();
 157
 158   return 0;
 159 }
 160
 161 }  // namespace
 162
 163 int main(int argc, char** argv) {
 164   CommandLine::Init(argc, argv);
 165
 166   // The exit manager is in charge of calling the dtors of singleton objects.
 167   base::AtExitManager exit_manager;
 168
 169   base::i18n::InitializeICU();
 170
 171   return DemoMain();
 172 }