src/content/shell/browser/shell_platform_data_aura.cc

   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 #include "content/shell/browser/shell_platform_data_aura.h"
   6
   7 #include "content/shell/browser/shell.h"
   8 #include "ui/aura/client/aura_constants.h"
   9 #include "ui/aura/client/default_capture_client.h"
  10 #include "ui/aura/env.h"
  11 #include "ui/aura/layout_manager.h"
  12 #include "ui/aura/test/test_focus_client.h"
  13 #include "ui/aura/test/test_window_tree_client.h"
  14 #include "ui/aura/window.h"
  15 #include "ui/aura/window_event_dispatcher.h"
  16 #include "ui/base/ime/input_method.h"
  17 #include "ui/base/ime/input_method_delegate.h"
  18 #include "ui/base/ime/input_method_factory.h"
  19 #include "ui/gfx/screen.h"
  20 #include "ui/wm/core/default_activation_client.h"
  21
  22 namespace content {
  23
  24 namespace {
  25
  26 class FillLayout : public aura::LayoutManager {
  27  public:
  28   explicit FillLayout(aura::Window* root)
  29       : root_(root) {
  30   }
  31
  32   ~FillLayout() override {}
  33
  34  private:
  35   // aura::LayoutManager:
  36   void OnWindowResized() override {}
  37
  38   void OnWindowAddedToLayout(aura::Window* child) override {
  39     child->SetBounds(root_->bounds());
  40   }
  41
  42   void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
  43
  44   void OnWindowRemovedFromLayout(aura::Window* child) override {}
  45
  46   void OnChildWindowVisibilityChanged(aura::Window* child,
  47                                       bool visible) override {}
  48
  49   void SetChildBounds(aura::Window* child,
  50                       const gfx::Rect& requested_bounds) override {
  51     SetChildBoundsDirect(child, requested_bounds);
  52   }
  53
  54   aura::Window* root_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(FillLayout);
  57 };
  58
  59 class MinimalInputEventFilter : public ui::internal::InputMethodDelegate,
  60                                 public ui::EventHandler {
  61  public:
  62   explicit MinimalInputEventFilter(aura::WindowTreeHost* host)
  63       : host_(host),
  64         input_method_(ui::CreateInputMethod(this,
  65                                             gfx::kNullAcceleratedWidget)) {
  66     input_method_->Init(true);
  67     host_->window()->AddPreTargetHandler(this);
  68     host_->window()->SetProperty(aura::client::kRootWindowInputMethodKey,
  69                                  input_method_.get());
  70   }
  71
  72   ~MinimalInputEventFilter() override {
  73     host_->window()->RemovePreTargetHandler(this);
  74     host_->window()->SetProperty(aura::client::kRootWindowInputMethodKey,
  75                                  static_cast<ui::InputMethod*>(NULL));
  76   }
  77
  78  private:
  79   // ui::EventHandler:
  80   void OnKeyEvent(ui::KeyEvent* event) override {
  81     // See the comment in InputMethodEventFilter::OnKeyEvent() for details.
  82     if (event->IsTranslated()) {
  83       event->SetTranslated(false);
  84     } else {
  85       if (input_method_->DispatchKeyEvent(*event))
  86         event->StopPropagation();
  87     }
  88   }
  89
  90   // ui::internal::InputMethodDelegate:
  91   bool DispatchKeyEventPostIME(const ui::KeyEvent& event) override {
  92     // See the comment in InputMethodEventFilter::DispatchKeyEventPostIME() for
  93     // details.
  94     ui::KeyEvent aura_event(event);
  95     aura_event.SetTranslated(true);
  96     ui::EventDispatchDetails details =
  97         host_->dispatcher()->OnEventFromSource(&aura_event);
  98     return aura_event.handled() || details.dispatcher_destroyed;
  99   }
 100
 101   aura::WindowTreeHost* host_;
 102   scoped_ptr<ui::InputMethod> input_method_;
 103
 104   DISALLOW_COPY_AND_ASSIGN(MinimalInputEventFilter);
 105 };
 106
 107 }
 108
 109 ShellPlatformDataAura* Shell::platform_ = NULL;
 110
 111 ShellPlatformDataAura::ShellPlatformDataAura(const gfx::Size& initial_size) {
 112   CHECK(aura::Env::GetInstance());
 113   host_.reset(aura::WindowTreeHost::Create(gfx::Rect(initial_size)));
 114   host_->InitHost();
 115   host_->window()->SetLayoutManager(new FillLayout(host_->window()));
 116
 117   focus_client_.reset(new aura::test::TestFocusClient());
 118   aura::client::SetFocusClient(host_->window(), focus_client_.get());
 119
 120   new wm::DefaultActivationClient(host_->window());
 121   capture_client_.reset(
 122       new aura::client::DefaultCaptureClient(host_->window()));
 123   window_tree_client_.reset(
 124       new aura::test::TestWindowTreeClient(host_->window()));
 125   ime_filter_.reset(new MinimalInputEventFilter(host_.get()));
 126 }
 127
 128 ShellPlatformDataAura::~ShellPlatformDataAura() {
 129 }
 130
 131 void ShellPlatformDataAura::ShowWindow() {
 132   host_->Show();
 133 }
 134
 135 void ShellPlatformDataAura::ResizeWindow(const gfx::Size& size) {
 136   host_->SetBounds(gfx::Rect(size));
 137 }
 138
 139 }  // namespace content