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| 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 "ui/views/controls/native/native_view_host_aura.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "ui/aura/client/aura_constants.h" | |
| 9 #include "ui/aura/client/focus_client.h" | |
| 10 #include "ui/aura/window.h" | |
| 11 #include "ui/aura/window_delegate.h" | |
| 12 #include "ui/base/cursor/cursor.h" | |
| 13 #include "ui/base/hit_test.h" | |
| 14 #include "ui/views/controls/native/native_view_host.h" | |
| 15 #include "ui/views/view_constants_aura.h" | |
| 16 #include "ui/views/widget/widget.h" | |
| 17 | |
| 18 namespace views { | |
| 19 | |
| 20 class NativeViewHostAura::ClippingWindowDelegate : public aura::WindowDelegate { | |
| 21 public: | |
| 22 ClippingWindowDelegate() : native_view_(NULL) {} | |
| 23 virtual ~ClippingWindowDelegate() {} | |
| 24 | |
| 25 void set_native_view(aura::Window* native_view) { | |
| 26 native_view_ = native_view; | |
| 27 } | |
| 28 | |
| 29 virtual gfx::Size GetMinimumSize() const override { return gfx::Size(); } | |
| 30 virtual gfx::Size GetMaximumSize() const override { return gfx::Size(); } | |
| 31 virtual void OnBoundsChanged(const gfx::Rect& old_bounds, | |
| 32 const gfx::Rect& new_bounds) override {} | |
| 33 virtual gfx::NativeCursor GetCursor(const gfx::Point& point) override { | |
| 34 return gfx::kNullCursor; | |
| 35 } | |
| 36 virtual int GetNonClientComponent(const gfx::Point& point) const override { | |
| 37 return HTCLIENT; | |
| 38 } | |
| 39 virtual bool ShouldDescendIntoChildForEventHandling( | |
| 40 aura::Window* child, | |
| 41 const gfx::Point& location) override { return true; } | |
| 42 virtual bool CanFocus() override { | |
| 43 // Ask the hosted native view's delegate because directly calling | |
| 44 // aura::Window::CanFocus() will call back into this when checking whether | |
| 45 // parents can focus. | |
| 46 return native_view_ && native_view_->delegate() | |
| 47 ? native_view_->delegate()->CanFocus() | |
| 48 : true; | |
| 49 } | |
| 50 virtual void OnCaptureLost() override {} | |
| 51 virtual void OnPaint(gfx::Canvas* canvas) override {} | |
| 52 virtual void OnDeviceScaleFactorChanged(float device_scale_factor) override {} | |
| 53 virtual void OnWindowDestroying(aura::Window* window) override {} | |
| 54 virtual void OnWindowDestroyed(aura::Window* window) override {} | |
| 55 virtual void OnWindowTargetVisibilityChanged(bool visible) override {} | |
| 56 virtual bool HasHitTestMask() const override { return false; } | |
| 57 virtual void GetHitTestMask(gfx::Path* mask) const override {} | |
| 58 | |
| 59 private: | |
| 60 aura::Window* native_view_; | |
| 61 }; | |
| 62 | |
| 63 NativeViewHostAura::NativeViewHostAura(NativeViewHost* host) | |
| 64 : host_(host), | |
| 65 clipping_window_delegate_(new ClippingWindowDelegate()), | |
| 66 clipping_window_(clipping_window_delegate_.get()) { | |
| 67 // Set the type so descendant views (including popups) get positioned | |
| 68 // appropriately. | |
| 69 clipping_window_.SetType(ui::wm::WINDOW_TYPE_CONTROL); | |
| 70 clipping_window_.Init(aura::WINDOW_LAYER_NOT_DRAWN); | |
| 71 clipping_window_.set_owned_by_parent(false); | |
| 72 clipping_window_.SetName("NativeViewHostAuraClip"); | |
| 73 clipping_window_.layer()->SetMasksToBounds(true); | |
| 74 clipping_window_.SetProperty(views::kHostViewKey, static_cast<View*>(host_)); | |
| 75 } | |
| 76 | |
| 77 NativeViewHostAura::~NativeViewHostAura() { | |
| 78 if (host_->native_view()) { | |
| 79 host_->native_view()->RemoveObserver(this); | |
| 80 host_->native_view()->ClearProperty(views::kHostViewKey); | |
| 81 host_->native_view()->ClearProperty(aura::client::kHostWindowKey); | |
| 82 clipping_window_.ClearProperty(views::kHostViewKey); | |
| 83 if (host_->native_view()->parent() == &clipping_window_) | |
| 84 clipping_window_.RemoveChild(host_->native_view()); | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 //////////////////////////////////////////////////////////////////////////////// | |
| 89 // NativeViewHostAura, NativeViewHostWrapper implementation: | |
| 90 void NativeViewHostAura::AttachNativeView() { | |
| 91 clipping_window_delegate_->set_native_view(host_->native_view()); | |
| 92 host_->native_view()->AddObserver(this); | |
| 93 host_->native_view()->SetProperty(views::kHostViewKey, | |
| 94 static_cast<View*>(host_)); | |
| 95 AddClippingWindow(); | |
| 96 } | |
| 97 | |
| 98 void NativeViewHostAura::NativeViewDetaching(bool destroyed) { | |
| 99 clipping_window_delegate_->set_native_view(NULL); | |
| 100 RemoveClippingWindow(); | |
| 101 if (!destroyed) { | |
| 102 host_->native_view()->RemoveObserver(this); | |
| 103 host_->native_view()->ClearProperty(views::kHostViewKey); | |
| 104 host_->native_view()->ClearProperty(aura::client::kHostWindowKey); | |
| 105 host_->native_view()->Hide(); | |
| 106 if (host_->native_view()->parent()) | |
| 107 Widget::ReparentNativeView(host_->native_view(), NULL); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 void NativeViewHostAura::AddedToWidget() { | |
| 112 if (!host_->native_view()) | |
| 113 return; | |
| 114 | |
| 115 AddClippingWindow(); | |
| 116 if (host_->IsDrawn()) | |
| 117 host_->native_view()->Show(); | |
| 118 else | |
| 119 host_->native_view()->Hide(); | |
| 120 host_->Layout(); | |
| 121 } | |
| 122 | |
| 123 void NativeViewHostAura::RemovedFromWidget() { | |
| 124 if (host_->native_view()) { | |
| 125 host_->native_view()->Hide(); | |
| 126 host_->native_view()->ClearProperty(aura::client::kHostWindowKey); | |
| 127 if (host_->native_view()->parent()) | |
| 128 host_->native_view()->parent()->RemoveChild(host_->native_view()); | |
| 129 RemoveClippingWindow(); | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 void NativeViewHostAura::InstallClip(int x, int y, int w, int h) { | |
| 134 clip_rect_.reset( | |
| 135 new gfx::Rect(host_->ConvertRectToWidget(gfx::Rect(x, y, w, h)))); | |
| 136 } | |
| 137 | |
| 138 bool NativeViewHostAura::HasInstalledClip() { | |
| 139 return clip_rect_; | |
| 140 } | |
| 141 | |
| 142 void NativeViewHostAura::UninstallClip() { | |
| 143 clip_rect_.reset(); | |
| 144 } | |
| 145 | |
| 146 void NativeViewHostAura::ShowWidget(int x, int y, int w, int h) { | |
| 147 int width = w; | |
| 148 int height = h; | |
| 149 if (host_->fast_resize()) { | |
| 150 gfx::Point origin(x, y); | |
| 151 views::View::ConvertPointFromWidget(host_, &origin); | |
| 152 InstallClip(origin.x(), origin.y(), w, h); | |
| 153 width = host_->native_view()->bounds().width(); | |
| 154 height = host_->native_view()->bounds().height(); | |
| 155 } | |
| 156 clipping_window_.SetBounds(clip_rect_ ? *clip_rect_ | |
| 157 : gfx::Rect(x, y, w, h)); | |
| 158 | |
| 159 gfx::Point clip_offset = clipping_window_.bounds().origin(); | |
| 160 host_->native_view()->SetBounds( | |
| 161 gfx::Rect(x - clip_offset.x(), y - clip_offset.y(), width, height)); | |
| 162 host_->native_view()->Show(); | |
| 163 clipping_window_.Show(); | |
| 164 } | |
| 165 | |
| 166 void NativeViewHostAura::HideWidget() { | |
| 167 host_->native_view()->Hide(); | |
| 168 clipping_window_.Hide(); | |
| 169 } | |
| 170 | |
| 171 void NativeViewHostAura::SetFocus() { | |
| 172 aura::Window* window = host_->native_view(); | |
| 173 aura::client::FocusClient* client = aura::client::GetFocusClient(window); | |
| 174 if (client) | |
| 175 client->FocusWindow(window); | |
| 176 } | |
| 177 | |
| 178 gfx::NativeViewAccessible NativeViewHostAura::GetNativeViewAccessible() { | |
| 179 return NULL; | |
| 180 } | |
| 181 | |
| 182 gfx::NativeCursor NativeViewHostAura::GetCursor(int x, int y) { | |
| 183 if (host_->native_view()) | |
| 184 return host_->native_view()->GetCursor(gfx::Point(x, y)); | |
| 185 return gfx::kNullCursor; | |
| 186 } | |
| 187 | |
| 188 void NativeViewHostAura::OnWindowDestroying(aura::Window* window) { | |
| 189 DCHECK(window == host_->native_view()); | |
| 190 clipping_window_delegate_->set_native_view(NULL); | |
| 191 } | |
| 192 | |
| 193 void NativeViewHostAura::OnWindowDestroyed(aura::Window* window) { | |
| 194 DCHECK(window == host_->native_view()); | |
| 195 host_->NativeViewDestroyed(); | |
| 196 } | |
| 197 | |
| 198 // static | |
| 199 NativeViewHostWrapper* NativeViewHostWrapper::CreateWrapper( | |
| 200 NativeViewHost* host) { | |
| 201 return new NativeViewHostAura(host); | |
| 202 } | |
| 203 | |
| 204 void NativeViewHostAura::AddClippingWindow() { | |
| 205 RemoveClippingWindow(); | |
| 206 | |
| 207 host_->native_view()->SetProperty(aura::client::kHostWindowKey, | |
| 208 host_->GetWidget()->GetNativeView()); | |
| 209 Widget::ReparentNativeView(host_->native_view(), | |
| 210 &clipping_window_); | |
| 211 if (host_->GetWidget()->GetNativeView()) { | |
| 212 Widget::ReparentNativeView(&clipping_window_, | |
| 213 host_->GetWidget()->GetNativeView()); | |
| 214 } | |
| 215 } | |
| 216 | |
| 217 void NativeViewHostAura::RemoveClippingWindow() { | |
| 218 clipping_window_.Hide(); | |
| 219 if (host_->native_view()) | |
| 220 host_->native_view()->ClearProperty(aura::client::kHostWindowKey); | |
| 221 | |
| 222 if (host_->native_view()->parent() == &clipping_window_) { | |
| 223 if (host_->GetWidget() && host_->GetWidget()->GetNativeView()) { | |
| 224 Widget::ReparentNativeView(host_->native_view(), | |
| 225 host_->GetWidget()->GetNativeView()); | |
| 226 } else { | |
| 227 clipping_window_.RemoveChild(host_->native_view()); | |
| 228 } | |
| 229 host_->native_view()->SetBounds(clipping_window_.bounds()); | |
| 230 } | |
| 231 if (clipping_window_.parent()) | |
| 232 clipping_window_.parent()->RemoveChild(&clipping_window_); | |
| 233 } | |
| 234 | |
| 235 } // namespace views | |
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