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| 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 "components/view_manager/server_view.h" | |
| 6 | |
| 7 #include <inttypes.h> | |
| 8 | |
| 9 #include "base/strings/stringprintf.h" | |
| 10 #include "components/view_manager/server_view_delegate.h" | |
| 11 #include "components/view_manager/server_view_observer.h" | |
| 12 #include "components/view_manager/surfaces/surfaces_state.h" | |
| 13 #include "mojo/converters/geometry/geometry_type_converters.h" | |
| 14 #include "mojo/converters/surfaces/surfaces_type_converters.h" | |
| 15 | |
| 16 namespace view_manager { | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 void CallCallback(const mojo::Closure& callback, cc::SurfaceDrawStatus status) { | |
| 21 callback.Run(); | |
| 22 } | |
| 23 | |
| 24 } // namespace | |
| 25 | |
| 26 ServerView::ServerView(ServerViewDelegate* delegate, const ViewId& id) | |
| 27 : delegate_(delegate), | |
| 28 id_(id), | |
| 29 parent_(nullptr), | |
| 30 visible_(false), | |
| 31 opacity_(1), | |
| 32 pending_access_policy_(mojo::ViewTree::ACCESS_POLICY_DEFAULT), | |
| 33 // Don't notify newly added observers during notification. This causes | |
| 34 // problems for code that adds an observer as part of an observer | |
| 35 // notification (such as ServerViewDrawTracker). | |
| 36 observers_(base::ObserverList<ServerViewObserver>::NOTIFY_EXISTING_ONLY), | |
| 37 binding_(this) { | |
| 38 DCHECK(delegate); // Must provide a delegate. | |
| 39 } | |
| 40 | |
| 41 ServerView::~ServerView() { | |
| 42 FOR_EACH_OBSERVER(ServerViewObserver, observers_, OnWillDestroyView(this)); | |
| 43 | |
| 44 while (!children_.empty()) | |
| 45 children_.front()->parent()->Remove(children_.front()); | |
| 46 | |
| 47 if (parent_) | |
| 48 parent_->Remove(this); | |
| 49 | |
| 50 FOR_EACH_OBSERVER(ServerViewObserver, observers_, OnViewDestroyed(this)); | |
| 51 | |
| 52 // SurfaceFactory's destructor will attempt to return resources which will | |
| 53 // call back into here and access |client_| so we should destroy | |
| 54 // |surface_factory_| early on. | |
| 55 surface_factory_.reset(); | |
| 56 } | |
| 57 | |
| 58 void ServerView::AddObserver(ServerViewObserver* observer) { | |
| 59 observers_.AddObserver(observer); | |
| 60 } | |
| 61 | |
| 62 void ServerView::RemoveObserver(ServerViewObserver* observer) { | |
| 63 observers_.RemoveObserver(observer); | |
| 64 } | |
| 65 | |
| 66 void ServerView::Bind(mojo::InterfaceRequest<Surface> request, | |
| 67 mojo::SurfaceClientPtr client) { | |
| 68 if (binding_.is_bound()) { | |
| 69 if (surface_factory_) { | |
| 70 // Destroy frame surfaces submitted by the old client before replacing | |
| 71 // client_, so those surfaces will be returned to the old client. | |
| 72 surface_factory_->DestroyAll(); | |
| 73 SetSurfaceId(cc::SurfaceId()); | |
| 74 } | |
| 75 binding_.Close(); | |
| 76 client_ = nullptr; | |
| 77 } | |
| 78 binding_.Bind(request.Pass()); | |
| 79 client_ = client.Pass(); | |
| 80 } | |
| 81 | |
| 82 void ServerView::Add(ServerView* child) { | |
| 83 // We assume validation checks happened already. | |
| 84 DCHECK(child); | |
| 85 DCHECK(child != this); | |
| 86 DCHECK(!child->Contains(this)); | |
| 87 if (child->parent() == this) { | |
| 88 if (children_.size() == 1) | |
| 89 return; // Already in the right position. | |
| 90 Reorder(child, children_.back(), mojo::ORDER_DIRECTION_ABOVE); | |
| 91 return; | |
| 92 } | |
| 93 | |
| 94 ServerView* old_parent = child->parent(); | |
| 95 FOR_EACH_OBSERVER(ServerViewObserver, child->observers_, | |
| 96 OnWillChangeViewHierarchy(child, this, old_parent)); | |
| 97 | |
| 98 if (child->parent()) | |
| 99 child->parent()->RemoveImpl(child); | |
| 100 | |
| 101 child->parent_ = this; | |
| 102 children_.push_back(child); | |
| 103 FOR_EACH_OBSERVER(ServerViewObserver, child->observers_, | |
| 104 OnViewHierarchyChanged(child, this, old_parent)); | |
| 105 } | |
| 106 | |
| 107 void ServerView::Remove(ServerView* child) { | |
| 108 // We assume validation checks happened else where. | |
| 109 DCHECK(child); | |
| 110 DCHECK(child != this); | |
| 111 DCHECK(child->parent() == this); | |
| 112 | |
| 113 FOR_EACH_OBSERVER(ServerViewObserver, child->observers_, | |
| 114 OnWillChangeViewHierarchy(child, nullptr, this)); | |
| 115 RemoveImpl(child); | |
| 116 FOR_EACH_OBSERVER(ServerViewObserver, child->observers_, | |
| 117 OnViewHierarchyChanged(child, nullptr, this)); | |
| 118 } | |
| 119 | |
| 120 void ServerView::Reorder(ServerView* child, | |
| 121 ServerView* relative, | |
| 122 mojo::OrderDirection direction) { | |
| 123 // We assume validation checks happened else where. | |
| 124 DCHECK(child); | |
| 125 DCHECK(child->parent() == this); | |
| 126 DCHECK_GT(children_.size(), 1u); | |
| 127 children_.erase(std::find(children_.begin(), children_.end(), child)); | |
| 128 Views::iterator i = std::find(children_.begin(), children_.end(), relative); | |
| 129 if (direction == mojo::ORDER_DIRECTION_ABOVE) { | |
| 130 DCHECK(i != children_.end()); | |
| 131 children_.insert(++i, child); | |
| 132 } else if (direction == mojo::ORDER_DIRECTION_BELOW) { | |
| 133 DCHECK(i != children_.end()); | |
| 134 children_.insert(i, child); | |
| 135 } | |
| 136 FOR_EACH_OBSERVER(ServerViewObserver, observers_, | |
| 137 OnViewReordered(this, relative, direction)); | |
| 138 } | |
| 139 | |
| 140 void ServerView::SetBounds(const gfx::Rect& bounds) { | |
| 141 if (bounds_ == bounds) | |
| 142 return; | |
| 143 | |
| 144 const gfx::Rect old_bounds = bounds_; | |
| 145 bounds_ = bounds; | |
| 146 FOR_EACH_OBSERVER(ServerViewObserver, observers_, | |
| 147 OnViewBoundsChanged(this, old_bounds, bounds)); | |
| 148 } | |
| 149 | |
| 150 const ServerView* ServerView::GetRoot() const { | |
| 151 return delegate_->GetRootView(this); | |
| 152 } | |
| 153 | |
| 154 std::vector<const ServerView*> ServerView::GetChildren() const { | |
| 155 std::vector<const ServerView*> children; | |
| 156 children.reserve(children_.size()); | |
| 157 for (size_t i = 0; i < children_.size(); ++i) | |
| 158 children.push_back(children_[i]); | |
| 159 return children; | |
| 160 } | |
| 161 | |
| 162 std::vector<ServerView*> ServerView::GetChildren() { | |
| 163 // TODO(sky): rename to children() and fix return type. | |
| 164 return children_; | |
| 165 } | |
| 166 | |
| 167 bool ServerView::Contains(const ServerView* view) const { | |
| 168 for (const ServerView* parent = view; parent; parent = parent->parent_) { | |
| 169 if (parent == this) | |
| 170 return true; | |
| 171 } | |
| 172 return false; | |
| 173 } | |
| 174 | |
| 175 void ServerView::SetVisible(bool value) { | |
| 176 if (visible_ == value) | |
| 177 return; | |
| 178 | |
| 179 FOR_EACH_OBSERVER(ServerViewObserver, observers_, | |
| 180 OnWillChangeViewVisibility(this)); | |
| 181 visible_ = value; | |
| 182 FOR_EACH_OBSERVER(ServerViewObserver, observers_, | |
| 183 OnViewVisibilityChanged(this)); | |
| 184 } | |
| 185 | |
| 186 void ServerView::SetOpacity(float value) { | |
| 187 if (value == opacity_) | |
| 188 return; | |
| 189 opacity_ = value; | |
| 190 delegate_->OnScheduleViewPaint(this); | |
| 191 } | |
| 192 | |
| 193 void ServerView::SetTransform(const gfx::Transform& transform) { | |
| 194 if (transform_ == transform) | |
| 195 return; | |
| 196 | |
| 197 transform_ = transform; | |
| 198 delegate_->OnScheduleViewPaint(this); | |
| 199 } | |
| 200 | |
| 201 void ServerView::SetProperty(const std::string& name, | |
| 202 const std::vector<uint8_t>* value) { | |
| 203 auto it = properties_.find(name); | |
| 204 if (it != properties_.end()) { | |
| 205 if (value && it->second == *value) | |
| 206 return; | |
| 207 } else if (!value) { | |
| 208 // This property isn't set in |properties_| and |value| is NULL, so there's | |
| 209 // no change. | |
| 210 return; | |
| 211 } | |
| 212 | |
| 213 if (value) { | |
| 214 properties_[name] = *value; | |
| 215 } else if (it != properties_.end()) { | |
| 216 properties_.erase(it); | |
| 217 } | |
| 218 | |
| 219 FOR_EACH_OBSERVER(ServerViewObserver, observers_, | |
| 220 OnViewSharedPropertyChanged(this, name, value)); | |
| 221 } | |
| 222 | |
| 223 void ServerView::SetTextInputState(const ui::TextInputState& state) { | |
| 224 const bool changed = !(text_input_state_ == state); | |
| 225 if (changed) { | |
| 226 text_input_state_ = state; | |
| 227 // keyboard even if the state is not changed. So we have to notify | |
| 228 // |observers_|. | |
| 229 FOR_EACH_OBSERVER(ServerViewObserver, observers_, | |
| 230 OnViewTextInputStateChanged(this, state)); | |
| 231 } | |
| 232 } | |
| 233 | |
| 234 bool ServerView::IsDrawn() const { | |
| 235 const ServerView* root = delegate_->GetRootView(this); | |
| 236 if (!root || !root->visible()) | |
| 237 return false; | |
| 238 const ServerView* view = this; | |
| 239 while (view && view != root && view->visible()) | |
| 240 view = view->parent(); | |
| 241 return root == view; | |
| 242 } | |
| 243 | |
| 244 void ServerView::SetSurfaceId(cc::SurfaceId surface_id) { | |
| 245 surface_id_ = surface_id; | |
| 246 delegate_->OnScheduleViewPaint(this); | |
| 247 } | |
| 248 | |
| 249 void ServerView::SubmitCompositorFrame( | |
| 250 mojo::CompositorFramePtr frame, | |
| 251 const SubmitCompositorFrameCallback& callback) { | |
| 252 gfx::Size frame_size = frame->passes[0]->output_rect.To<gfx::Rect>().size(); | |
| 253 // Create Surfaces state on demand. | |
| 254 if (!surface_factory_) { | |
| 255 surface_factory_.reset( | |
| 256 new cc::SurfaceFactory(delegate_->GetSurfacesState()->manager(), this)); | |
| 257 } | |
| 258 if (!surface_id_allocator_) { | |
| 259 surface_id_allocator_.reset( | |
| 260 new cc::SurfaceIdAllocator( | |
| 261 delegate_->GetSurfacesState()->next_id_namespace())); | |
| 262 } | |
| 263 if (surface_id().is_null()) { | |
| 264 // Create a Surface ID for the first time for this view. | |
| 265 cc::SurfaceId surface_id(surface_id_allocator_->GenerateId()); | |
| 266 surface_factory_->Create(surface_id); | |
| 267 SetSurfaceId(surface_id); | |
| 268 } else { | |
| 269 // If the size of the CompostiorFrame has changed then destroy the existing | |
| 270 // Surface and create a new one of the appropriate size. | |
| 271 if (frame_size != last_submitted_frame_size()) { | |
| 272 surface_factory_->Destroy(surface_id()); | |
| 273 cc::SurfaceId surface_id(surface_id_allocator_->GenerateId()); | |
| 274 surface_factory_->Create(surface_id); | |
| 275 SetSurfaceId(surface_id); | |
| 276 } | |
| 277 } | |
| 278 surface_factory_->SubmitCompositorFrame( | |
| 279 surface_id(), | |
| 280 delegate_->UpdateViewTreeFromCompositorFrame(frame), | |
| 281 base::Bind(&CallCallback, callback)); | |
| 282 delegate_->GetSurfacesState()->scheduler()->SetNeedsDraw(); | |
| 283 last_submitted_frame_size_ = frame_size; | |
| 284 } | |
| 285 | |
| 286 #if !defined(NDEBUG) | |
| 287 std::string ServerView::GetDebugWindowHierarchy() const { | |
| 288 std::string result; | |
| 289 BuildDebugInfo(std::string(), &result); | |
| 290 return result; | |
| 291 } | |
| 292 | |
| 293 void ServerView::BuildDebugInfo(const std::string& depth, | |
| 294 std::string* result) const { | |
| 295 *result += base::StringPrintf( | |
| 296 "%sid=%d,%d visible=%s bounds=%d,%d %dx%d surface_id=%" PRIu64 "\n", | |
| 297 depth.c_str(), static_cast<int>(id_.connection_id), | |
| 298 static_cast<int>(id_.view_id), visible_ ? "true" : "false", bounds_.x(), | |
| 299 bounds_.y(), bounds_.width(), bounds_.height(), surface_id_.id); | |
| 300 for (const ServerView* child : children_) | |
| 301 child->BuildDebugInfo(depth + " ", result); | |
| 302 } | |
| 303 #endif | |
| 304 | |
| 305 void ServerView::ReturnResources( | |
| 306 const cc::ReturnedResourceArray& resources) { | |
| 307 if (!client_) | |
| 308 return; | |
| 309 client_->ReturnResources( | |
| 310 mojo::Array<mojo::ReturnedResourcePtr>::From(resources)); | |
| 311 } | |
| 312 | |
| 313 void ServerView::RemoveImpl(ServerView* view) { | |
| 314 view->parent_ = NULL; | |
| 315 children_.erase(std::find(children_.begin(), children_.end(), view)); | |
| 316 } | |
| 317 | |
| 318 } // namespace view_manager | |
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Chromium Code Reviews
Issue 1344573002:
Mandoline: Rename components/view_manager to components/mus (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master