src/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
  25 #if defined(USE_X11)
  26 #include "base/message_loop/message_pump_x11.h"
  27 #endif
  28
  29 namespace {
  30
  31 // Trivial WindowDelegate implementation that draws a colored background.
  32 class DemoWindowDelegate : public aura::WindowDelegate {
  33  public:
  34   explicit DemoWindowDelegate(SkColor color) : color_(color) {}
  35
  36   // Overridden from WindowDelegate:
  37   virtual gfx::Size GetMinimumSize() const OVERRIDE {
  38     return gfx::Size();
  39   }
  40
  41   virtual gfx::Size GetMaximumSize() const OVERRIDE {
  42     return gfx::Size();
  43   }
  44
  45   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
  46                                const gfx::Rect& new_bounds) OVERRIDE {}
  47   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE {
  48     return gfx::kNullCursor;
  49   }
  50   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE {
  51     return HTCAPTION;
  52   }
  53   virtual bool ShouldDescendIntoChildForEventHandling(
  54       aura::Window* child,
  55       const gfx::Point& location) OVERRIDE {
  56     return true;
  57   }
  58   virtual bool CanFocus() OVERRIDE { return true; }
  59   virtual void OnCaptureLost() OVERRIDE {}
  60   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
  61     canvas->DrawColor(color_, SkXfermode::kSrc_Mode);
  62   }
  63   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE {}
  64   virtual void OnWindowDestroying() OVERRIDE {}
  65   virtual void OnWindowDestroyed() OVERRIDE {}
  66   virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE {}
  67   virtual bool HasHitTestMask() const OVERRIDE { return false; }
  68   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE {}
  69   virtual void DidRecreateLayer(ui::Layer* old_layer,
  70                                 ui::Layer* new_layer) OVERRIDE {}
  71
  72  private:
  73   SkColor color_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(DemoWindowDelegate);
  76 };
  77
  78 class DemoWindowTreeClient : public aura::client::WindowTreeClient {
  79  public:
  80   explicit DemoWindowTreeClient(aura::Window* window) : window_(window) {
  81     aura::client::SetWindowTreeClient(window_, this);
  82   }
  83
  84   virtual ~DemoWindowTreeClient() {
  85     aura::client::SetWindowTreeClient(window_, NULL);
  86   }
  87
  88   // Overridden from aura::client::WindowTreeClient:
  89   virtual aura::Window* GetDefaultParent(aura::Window* context,
  90                                          aura::Window* window,
  91                                          const gfx::Rect& bounds) OVERRIDE {
  92     if (!capture_client_) {
  93       capture_client_.reset(
  94           new aura::client::DefaultCaptureClient(window_->GetRootWindow()));
  95     }
  96     return window_;
  97   }
  98
  99  private:
 100   aura::Window* window_;
 101
 102   scoped_ptr<aura::client::DefaultCaptureClient> capture_client_;
 103
 104   DISALLOW_COPY_AND_ASSIGN(DemoWindowTreeClient);
 105 };
 106
 107 int DemoMain() {
 108   // Create the message-loop here before creating the root window.
 109   base::MessageLoopForUI message_loop;
 110
 111   // The ContextFactory must exist before any Compositors are created.
 112   bool allow_test_contexts = false;
 113   ui::InitializeContextFactoryForTests(allow_test_contexts);
 114
 115   aura::Env::CreateInstance();
 116   scoped_ptr<aura::TestScreen> test_screen(aura::TestScreen::Create());
 117   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, test_screen.get());
 118   scoped_ptr<aura::RootWindow> root_window(
 119       test_screen->CreateRootWindowForPrimaryDisplay());
 120   scoped_ptr<DemoWindowTreeClient> window_tree_client(new DemoWindowTreeClient(
 121       root_window->window()));
 122   aura::test::TestFocusClient focus_client;
 123   aura::client::SetFocusClient(root_window->window(), &focus_client);
 124
 125   // Create a hierarchy of test windows.
 126   DemoWindowDelegate window_delegate1(SK_ColorBLUE);
 127   aura::Window window1(&window_delegate1);
 128   window1.set_id(1);
 129   window1.Init(aura::WINDOW_LAYER_TEXTURED);
 130   window1.SetBounds(gfx::Rect(100, 100, 400, 400));
 131   window1.Show();
 132   aura::client::ParentWindowWithContext(
 133       &window1, root_window->window(), gfx::Rect());
 134
 135   DemoWindowDelegate window_delegate2(SK_ColorRED);
 136   aura::Window window2(&window_delegate2);
 137   window2.set_id(2);
 138   window2.Init(aura::WINDOW_LAYER_TEXTURED);
 139   window2.SetBounds(gfx::Rect(200, 200, 350, 350));
 140   window2.Show();
 141   aura::client::ParentWindowWithContext(
 142       &window2, root_window->window(), gfx::Rect());
 143
 144   DemoWindowDelegate window_delegate3(SK_ColorGREEN);
 145   aura::Window window3(&window_delegate3);
 146   window3.set_id(3);
 147   window3.Init(aura::WINDOW_LAYER_TEXTURED);
 148   window3.SetBounds(gfx::Rect(10, 10, 50, 50));
 149   window3.Show();
 150   window2.AddChild(&window3);
 151
 152   root_window->host()->Show();
 153   base::MessageLoopForUI::current()->Run();
 154
 155   return 0;
 156 }
 157
 158 }  // namespace
 159
 160 int main(int argc, char** argv) {
 161   CommandLine::Init(argc, argv);
 162
 163   // The exit manager is in charge of calling the dtors of singleton objects.
 164   base::AtExitManager exit_manager;
 165
 166   base::i18n::InitializeICU();
 167
 168   return DemoMain();
 169 }