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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/view_tree_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/stl_util.h" | |
| 9 #include "components/view_manager/connection_manager.h" | |
| 10 #include "components/view_manager/default_access_policy.h" | |
| 11 #include "components/view_manager/display_manager.h" | |
| 12 #include "components/view_manager/server_view.h" | |
| 13 #include "components/view_manager/view_tree_host_impl.h" | |
| 14 #include "components/view_manager/window_manager_access_policy.h" | |
| 15 #include "mojo/converters/geometry/geometry_type_converters.h" | |
| 16 #include "mojo/converters/ime/ime_type_converters.h" | |
| 17 #include "mojo/converters/input_events/input_events_type_converters.h" | |
| 18 #include "mojo/converters/surfaces/surfaces_type_converters.h" | |
| 19 #include "ui/platform_window/text_input_state.h" | |
| 20 | |
| 21 using mojo::Array; | |
| 22 using mojo::Callback; | |
| 23 using mojo::Id; | |
| 24 using mojo::InterfaceRequest; | |
| 25 using mojo::OrderDirection; | |
| 26 using mojo::Rect; | |
| 27 using mojo::ServiceProvider; | |
| 28 using mojo::ServiceProviderPtr; | |
| 29 using mojo::String; | |
| 30 using mojo::ViewDataPtr; | |
| 31 | |
| 32 namespace view_manager { | |
| 33 | |
| 34 ViewTreeImpl::ViewTreeImpl( | |
| 35 ConnectionManager* connection_manager, | |
| 36 mojo::ConnectionSpecificId creator_id, | |
| 37 const ViewId& root_id) | |
| 38 : connection_manager_(connection_manager), | |
| 39 id_(connection_manager_->GetAndAdvanceNextConnectionId()), | |
| 40 creator_id_(creator_id), | |
| 41 client_(nullptr), | |
| 42 is_embed_root_(false) { | |
| 43 ServerView* view = GetView(root_id); | |
| 44 CHECK(view); | |
| 45 root_.reset(new ViewId(root_id)); | |
| 46 if (view->GetRoot() == view) { | |
| 47 access_policy_.reset(new WindowManagerAccessPolicy(id_, this)); | |
| 48 is_embed_root_ = true; | |
| 49 } else { | |
| 50 access_policy_.reset(new DefaultAccessPolicy(id_, this)); | |
| 51 is_embed_root_ = (view->get_and_clear_pending_access_policy() & | |
| 52 ViewTree::ACCESS_POLICY_EMBED_ROOT) != 0; | |
| 53 } | |
| 54 } | |
| 55 | |
| 56 ViewTreeImpl::~ViewTreeImpl() { | |
| 57 DestroyViews(); | |
| 58 } | |
| 59 | |
| 60 void ViewTreeImpl::Init(mojo::ViewTreeClient* client, mojo::ViewTreePtr tree) { | |
| 61 DCHECK(!client_); | |
| 62 client_ = client; | |
| 63 std::vector<const ServerView*> to_send; | |
| 64 if (root_.get()) | |
| 65 GetUnknownViewsFrom(GetView(*root_), &to_send); | |
| 66 | |
| 67 // TODO(beng): verify that host can actually be nullptr here. | |
| 68 ViewTreeHostImpl* host = GetHost(); | |
| 69 const ServerView* focused_view = host ? host->GetFocusedView() : nullptr; | |
| 70 if (focused_view) | |
| 71 focused_view = access_policy_->GetViewForFocusChange(focused_view); | |
| 72 const mojo::Id focused_view_transport_id( | |
| 73 ViewIdToTransportId(focused_view ? focused_view->id() : ViewId())); | |
| 74 | |
| 75 client->OnEmbed(id_, ViewToViewData(to_send.front()), tree.Pass(), | |
| 76 focused_view_transport_id, | |
| 77 is_embed_root_ ? ViewTree::ACCESS_POLICY_EMBED_ROOT | |
| 78 : ViewTree::ACCESS_POLICY_DEFAULT); | |
| 79 } | |
| 80 | |
| 81 const ServerView* ViewTreeImpl::GetView(const ViewId& id) const { | |
| 82 if (id_ == id.connection_id) { | |
| 83 ViewMap::const_iterator i = view_map_.find(id.view_id); | |
| 84 return i == view_map_.end() ? NULL : i->second; | |
| 85 } | |
| 86 return connection_manager_->GetView(id); | |
| 87 } | |
| 88 | |
| 89 bool ViewTreeImpl::IsRoot(const ViewId& id) const { | |
| 90 return root_.get() && *root_ == id; | |
| 91 } | |
| 92 | |
| 93 ViewTreeHostImpl* ViewTreeImpl::GetHost() { | |
| 94 return root_.get() ? | |
| 95 connection_manager_->GetViewTreeHostByView(GetView(*root_)) : nullptr; | |
| 96 } | |
| 97 | |
| 98 void ViewTreeImpl::OnWillDestroyViewTreeImpl( | |
| 99 ViewTreeImpl* connection) { | |
| 100 if (creator_id_ == connection->id()) | |
| 101 creator_id_ = kInvalidConnectionId; | |
| 102 const ServerView* connection_root = | |
| 103 connection->root_ ? connection->GetView(*connection->root_) : nullptr; | |
| 104 if (connection_root && | |
| 105 ((connection_root->id().connection_id == id_ && | |
| 106 view_map_.count(connection_root->id().view_id) > 0) || | |
| 107 (is_embed_root_ && IsViewKnown(connection_root)))) { | |
| 108 client()->OnEmbeddedAppDisconnected( | |
| 109 ViewIdToTransportId(*connection->root_)); | |
| 110 } | |
| 111 if (root_.get() && root_->connection_id == connection->id()) | |
| 112 root_.reset(); | |
| 113 } | |
| 114 | |
| 115 mojo::ErrorCode ViewTreeImpl::CreateView(const ViewId& view_id) { | |
| 116 if (view_id.connection_id != id_) | |
| 117 return mojo::ERROR_CODE_ILLEGAL_ARGUMENT; | |
| 118 if (view_map_.find(view_id.view_id) != view_map_.end()) | |
| 119 return mojo::ERROR_CODE_VALUE_IN_USE; | |
| 120 view_map_[view_id.view_id] = connection_manager_->CreateServerView(view_id); | |
| 121 known_views_.insert(ViewIdToTransportId(view_id)); | |
| 122 return mojo::ERROR_CODE_NONE; | |
| 123 } | |
| 124 | |
| 125 bool ViewTreeImpl::AddView(const ViewId& parent_id, const ViewId& child_id) { | |
| 126 ServerView* parent = GetView(parent_id); | |
| 127 ServerView* child = GetView(child_id); | |
| 128 if (parent && child && child->parent() != parent && | |
| 129 !child->Contains(parent) && access_policy_->CanAddView(parent, child)) { | |
| 130 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 131 parent->Add(child); | |
| 132 return true; | |
| 133 } | |
| 134 return false; | |
| 135 } | |
| 136 | |
| 137 std::vector<const ServerView*> ViewTreeImpl::GetViewTree( | |
| 138 const ViewId& view_id) const { | |
| 139 const ServerView* view = GetView(view_id); | |
| 140 std::vector<const ServerView*> views; | |
| 141 if (view) | |
| 142 GetViewTreeImpl(view, &views); | |
| 143 return views; | |
| 144 } | |
| 145 | |
| 146 bool ViewTreeImpl::SetViewVisibility(const ViewId& view_id, bool visible) { | |
| 147 ServerView* view = GetView(view_id); | |
| 148 if (!view || view->visible() == visible || | |
| 149 !access_policy_->CanChangeViewVisibility(view)) { | |
| 150 return false; | |
| 151 } | |
| 152 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 153 view->SetVisible(visible); | |
| 154 return true; | |
| 155 } | |
| 156 | |
| 157 bool ViewTreeImpl::Embed(const ViewId& view_id, | |
| 158 mojo::ViewTreeClientPtr client, | |
| 159 mojo::ConnectionSpecificId* connection_id) { | |
| 160 *connection_id = kInvalidConnectionId; | |
| 161 if (!client.get() || !CanEmbed(view_id)) | |
| 162 return false; | |
| 163 PrepareForEmbed(view_id); | |
| 164 ViewTreeImpl* new_connection = | |
| 165 connection_manager_->EmbedAtView(id_, view_id, client.Pass()); | |
| 166 if (is_embed_root_) | |
| 167 *connection_id = new_connection->id(); | |
| 168 return true; | |
| 169 } | |
| 170 | |
| 171 void ViewTreeImpl::Embed(const ViewId& view_id, mojo::URLRequestPtr request) { | |
| 172 if (!CanEmbed(view_id)) | |
| 173 return; | |
| 174 PrepareForEmbed(view_id); | |
| 175 connection_manager_->EmbedAtView(id_, view_id, request.Pass()); | |
| 176 } | |
| 177 | |
| 178 void ViewTreeImpl::ProcessViewBoundsChanged( | |
| 179 const ServerView* view, | |
| 180 const gfx::Rect& old_bounds, | |
| 181 const gfx::Rect& new_bounds, | |
| 182 bool originated_change) { | |
| 183 if (originated_change || !IsViewKnown(view)) | |
| 184 return; | |
| 185 client()->OnViewBoundsChanged(ViewIdToTransportId(view->id()), | |
| 186 Rect::From(old_bounds), | |
| 187 Rect::From(new_bounds)); | |
| 188 } | |
| 189 | |
| 190 void ViewTreeImpl::ProcessViewportMetricsChanged( | |
| 191 const mojo::ViewportMetrics& old_metrics, | |
| 192 const mojo::ViewportMetrics& new_metrics, | |
| 193 bool originated_change) { | |
| 194 client()->OnViewViewportMetricsChanged(old_metrics.Clone(), | |
| 195 new_metrics.Clone()); | |
| 196 } | |
| 197 | |
| 198 void ViewTreeImpl::ProcessWillChangeViewHierarchy( | |
| 199 const ServerView* view, | |
| 200 const ServerView* new_parent, | |
| 201 const ServerView* old_parent, | |
| 202 bool originated_change) { | |
| 203 if (originated_change) | |
| 204 return; | |
| 205 | |
| 206 const bool old_drawn = view->IsDrawn(); | |
| 207 const bool new_drawn = view->visible() && new_parent && new_parent->IsDrawn(); | |
| 208 if (old_drawn == new_drawn) | |
| 209 return; | |
| 210 | |
| 211 NotifyDrawnStateChanged(view, new_drawn); | |
| 212 } | |
| 213 | |
| 214 void ViewTreeImpl::ProcessViewPropertyChanged( | |
| 215 const ServerView* view, | |
| 216 const std::string& name, | |
| 217 const std::vector<uint8_t>* new_data, | |
| 218 bool originated_change) { | |
| 219 if (originated_change) | |
| 220 return; | |
| 221 | |
| 222 Array<uint8_t> data; | |
| 223 if (new_data) | |
| 224 data = Array<uint8_t>::From(*new_data); | |
| 225 | |
| 226 client()->OnViewSharedPropertyChanged(ViewIdToTransportId(view->id()), | |
| 227 String(name), data.Pass()); | |
| 228 } | |
| 229 | |
| 230 void ViewTreeImpl::ProcessViewHierarchyChanged( | |
| 231 const ServerView* view, | |
| 232 const ServerView* new_parent, | |
| 233 const ServerView* old_parent, | |
| 234 bool originated_change) { | |
| 235 if (originated_change && !IsViewKnown(view) && new_parent && | |
| 236 IsViewKnown(new_parent)) { | |
| 237 std::vector<const ServerView*> unused; | |
| 238 GetUnknownViewsFrom(view, &unused); | |
| 239 } | |
| 240 if (originated_change || connection_manager_->is_processing_delete_view() || | |
| 241 connection_manager_->DidConnectionMessageClient(id_)) { | |
| 242 return; | |
| 243 } | |
| 244 | |
| 245 if (!access_policy_->ShouldNotifyOnHierarchyChange( | |
| 246 view, &new_parent, &old_parent)) { | |
| 247 return; | |
| 248 } | |
| 249 // Inform the client of any new views and update the set of views we know | |
| 250 // about. | |
| 251 std::vector<const ServerView*> to_send; | |
| 252 if (!IsViewKnown(view)) | |
| 253 GetUnknownViewsFrom(view, &to_send); | |
| 254 const ViewId new_parent_id(new_parent ? new_parent->id() : ViewId()); | |
| 255 const ViewId old_parent_id(old_parent ? old_parent->id() : ViewId()); | |
| 256 client()->OnViewHierarchyChanged(ViewIdToTransportId(view->id()), | |
| 257 ViewIdToTransportId(new_parent_id), | |
| 258 ViewIdToTransportId(old_parent_id), | |
| 259 ViewsToViewDatas(to_send)); | |
| 260 connection_manager_->OnConnectionMessagedClient(id_); | |
| 261 } | |
| 262 | |
| 263 void ViewTreeImpl::ProcessViewReorder(const ServerView* view, | |
| 264 const ServerView* relative_view, | |
| 265 OrderDirection direction, | |
| 266 bool originated_change) { | |
| 267 if (originated_change || !IsViewKnown(view) || !IsViewKnown(relative_view)) | |
| 268 return; | |
| 269 | |
| 270 client()->OnViewReordered(ViewIdToTransportId(view->id()), | |
| 271 ViewIdToTransportId(relative_view->id()), | |
| 272 direction); | |
| 273 } | |
| 274 | |
| 275 void ViewTreeImpl::ProcessViewDeleted(const ViewId& view, | |
| 276 bool originated_change) { | |
| 277 if (view.connection_id == id_) | |
| 278 view_map_.erase(view.view_id); | |
| 279 | |
| 280 const bool in_known = known_views_.erase(ViewIdToTransportId(view)) > 0; | |
| 281 | |
| 282 if (IsRoot(view)) | |
| 283 root_.reset(); | |
| 284 | |
| 285 if (originated_change) | |
| 286 return; | |
| 287 | |
| 288 if (in_known) { | |
| 289 client()->OnViewDeleted(ViewIdToTransportId(view)); | |
| 290 connection_manager_->OnConnectionMessagedClient(id_); | |
| 291 } | |
| 292 } | |
| 293 | |
| 294 void ViewTreeImpl::ProcessWillChangeViewVisibility( | |
| 295 const ServerView* view, | |
| 296 bool originated_change) { | |
| 297 if (originated_change) | |
| 298 return; | |
| 299 | |
| 300 if (IsViewKnown(view)) { | |
| 301 client()->OnViewVisibilityChanged(ViewIdToTransportId(view->id()), | |
| 302 !view->visible()); | |
| 303 return; | |
| 304 } | |
| 305 | |
| 306 bool view_target_drawn_state; | |
| 307 if (view->visible()) { | |
| 308 // View is being hidden, won't be drawn. | |
| 309 view_target_drawn_state = false; | |
| 310 } else { | |
| 311 // View is being shown. View will be drawn if its parent is drawn. | |
| 312 view_target_drawn_state = view->parent() && view->parent()->IsDrawn(); | |
| 313 } | |
| 314 | |
| 315 NotifyDrawnStateChanged(view, view_target_drawn_state); | |
| 316 } | |
| 317 | |
| 318 void ViewTreeImpl::ProcessFocusChanged( | |
| 319 const ServerView* old_focused_view, | |
| 320 const ServerView* new_focused_view) { | |
| 321 const ServerView* view = | |
| 322 new_focused_view ? access_policy_->GetViewForFocusChange(new_focused_view) | |
| 323 : nullptr; | |
| 324 client()->OnViewFocused(view ? ViewIdToTransportId(view->id()) | |
| 325 : ViewIdToTransportId(ViewId())); | |
| 326 } | |
| 327 | |
| 328 bool ViewTreeImpl::IsViewKnown(const ServerView* view) const { | |
| 329 return known_views_.count(ViewIdToTransportId(view->id())) > 0; | |
| 330 } | |
| 331 | |
| 332 bool ViewTreeImpl::CanReorderView(const ServerView* view, | |
| 333 const ServerView* relative_view, | |
| 334 OrderDirection direction) const { | |
| 335 if (!view || !relative_view) | |
| 336 return false; | |
| 337 | |
| 338 if (!view->parent() || view->parent() != relative_view->parent()) | |
| 339 return false; | |
| 340 | |
| 341 if (!access_policy_->CanReorderView(view, relative_view, direction)) | |
| 342 return false; | |
| 343 | |
| 344 std::vector<const ServerView*> children = view->parent()->GetChildren(); | |
| 345 const size_t child_i = | |
| 346 std::find(children.begin(), children.end(), view) - children.begin(); | |
| 347 const size_t target_i = | |
| 348 std::find(children.begin(), children.end(), relative_view) - | |
| 349 children.begin(); | |
| 350 if ((direction == mojo::ORDER_DIRECTION_ABOVE && child_i == target_i + 1) || | |
| 351 (direction == mojo::ORDER_DIRECTION_BELOW && child_i + 1 == target_i)) { | |
| 352 return false; | |
| 353 } | |
| 354 | |
| 355 return true; | |
| 356 } | |
| 357 | |
| 358 bool ViewTreeImpl::DeleteViewImpl(ViewTreeImpl* source, ServerView* view) { | |
| 359 DCHECK(view); | |
| 360 DCHECK_EQ(view->id().connection_id, id_); | |
| 361 ConnectionManager::ScopedChange change(source, connection_manager_, true); | |
| 362 delete view; | |
| 363 return true; | |
| 364 } | |
| 365 | |
| 366 void ViewTreeImpl::GetUnknownViewsFrom( | |
| 367 const ServerView* view, | |
| 368 std::vector<const ServerView*>* views) { | |
| 369 if (IsViewKnown(view) || !access_policy_->CanGetViewTree(view)) | |
| 370 return; | |
| 371 views->push_back(view); | |
| 372 known_views_.insert(ViewIdToTransportId(view->id())); | |
| 373 if (!access_policy_->CanDescendIntoViewForViewTree(view)) | |
| 374 return; | |
| 375 std::vector<const ServerView*> children(view->GetChildren()); | |
| 376 for (size_t i = 0 ; i < children.size(); ++i) | |
| 377 GetUnknownViewsFrom(children[i], views); | |
| 378 } | |
| 379 | |
| 380 void ViewTreeImpl::RemoveFromKnown( | |
| 381 const ServerView* view, | |
| 382 std::vector<ServerView*>* local_views) { | |
| 383 if (view->id().connection_id == id_) { | |
| 384 if (local_views) | |
| 385 local_views->push_back(GetView(view->id())); | |
| 386 return; | |
| 387 } | |
| 388 known_views_.erase(ViewIdToTransportId(view->id())); | |
| 389 std::vector<const ServerView*> children = view->GetChildren(); | |
| 390 for (size_t i = 0; i < children.size(); ++i) | |
| 391 RemoveFromKnown(children[i], local_views); | |
| 392 } | |
| 393 | |
| 394 void ViewTreeImpl::RemoveRoot() { | |
| 395 CHECK(root_.get()); | |
| 396 const ViewId root_id(*root_); | |
| 397 root_.reset(); | |
| 398 // No need to do anything if we created the view. | |
| 399 if (root_id.connection_id == id_) | |
| 400 return; | |
| 401 | |
| 402 client()->OnUnembed(); | |
| 403 client()->OnViewDeleted(ViewIdToTransportId(root_id)); | |
| 404 connection_manager_->OnConnectionMessagedClient(id_); | |
| 405 | |
| 406 // This connection no longer knows about the view. Unparent any views that | |
| 407 // were parented to views in the root. | |
| 408 std::vector<ServerView*> local_views; | |
| 409 RemoveFromKnown(GetView(root_id), &local_views); | |
| 410 for (size_t i = 0; i < local_views.size(); ++i) | |
| 411 local_views[i]->parent()->Remove(local_views[i]); | |
| 412 } | |
| 413 | |
| 414 Array<ViewDataPtr> ViewTreeImpl::ViewsToViewDatas( | |
| 415 const std::vector<const ServerView*>& views) { | |
| 416 Array<ViewDataPtr> array(views.size()); | |
| 417 for (size_t i = 0; i < views.size(); ++i) | |
| 418 array[i] = ViewToViewData(views[i]).Pass(); | |
| 419 return array.Pass(); | |
| 420 } | |
| 421 | |
| 422 ViewDataPtr ViewTreeImpl::ViewToViewData(const ServerView* view) { | |
| 423 DCHECK(IsViewKnown(view)); | |
| 424 const ServerView* parent = view->parent(); | |
| 425 // If the parent isn't known, it means the parent is not visible to us (not | |
| 426 // in roots), and should not be sent over. | |
| 427 if (parent && !IsViewKnown(parent)) | |
| 428 parent = NULL; | |
| 429 ViewDataPtr view_data(mojo::ViewData::New()); | |
| 430 view_data->parent_id = ViewIdToTransportId(parent ? parent->id() : ViewId()); | |
| 431 view_data->view_id = ViewIdToTransportId(view->id()); | |
| 432 view_data->bounds = Rect::From(view->bounds()); | |
| 433 view_data->properties = | |
| 434 mojo::Map<String, Array<uint8_t>>::From(view->properties()); | |
| 435 view_data->visible = view->visible(); | |
| 436 view_data->drawn = view->IsDrawn(); | |
| 437 view_data->viewport_metrics = | |
| 438 connection_manager_->GetViewportMetricsForView(view); | |
| 439 return view_data.Pass(); | |
| 440 } | |
| 441 | |
| 442 void ViewTreeImpl::GetViewTreeImpl( | |
| 443 const ServerView* view, | |
| 444 std::vector<const ServerView*>* views) const { | |
| 445 DCHECK(view); | |
| 446 | |
| 447 if (!access_policy_->CanGetViewTree(view)) | |
| 448 return; | |
| 449 | |
| 450 views->push_back(view); | |
| 451 | |
| 452 if (!access_policy_->CanDescendIntoViewForViewTree(view)) | |
| 453 return; | |
| 454 | |
| 455 std::vector<const ServerView*> children(view->GetChildren()); | |
| 456 for (size_t i = 0 ; i < children.size(); ++i) | |
| 457 GetViewTreeImpl(children[i], views); | |
| 458 } | |
| 459 | |
| 460 void ViewTreeImpl::NotifyDrawnStateChanged(const ServerView* view, | |
| 461 bool new_drawn_value) { | |
| 462 // Even though we don't know about view, it may be an ancestor of our root, in | |
| 463 // which case the change may effect our roots drawn state. | |
| 464 if (!root_.get()) | |
| 465 return; | |
| 466 | |
| 467 const ServerView* root = GetView(*root_); | |
| 468 DCHECK(root); | |
| 469 if (view->Contains(root) && (new_drawn_value != root->IsDrawn())) { | |
| 470 client()->OnViewDrawnStateChanged(ViewIdToTransportId(root->id()), | |
| 471 new_drawn_value); | |
| 472 } | |
| 473 } | |
| 474 | |
| 475 void ViewTreeImpl::DestroyViews() { | |
| 476 if (!view_map_.empty()) { | |
| 477 ConnectionManager::ScopedChange change(this, connection_manager_, true); | |
| 478 // If we get here from the destructor we're not going to get | |
| 479 // ProcessViewDeleted(). Copy the map and delete from the copy so that we | |
| 480 // don't have to worry about whether |view_map_| changes or not. | |
| 481 ViewMap view_map_copy; | |
| 482 view_map_.swap(view_map_copy); | |
| 483 STLDeleteValues(&view_map_copy); | |
| 484 } | |
| 485 } | |
| 486 | |
| 487 bool ViewTreeImpl::CanEmbed(const ViewId& view_id) const { | |
| 488 const ServerView* view = GetView(view_id); | |
| 489 return view && access_policy_->CanEmbed(view); | |
| 490 } | |
| 491 | |
| 492 void ViewTreeImpl::PrepareForEmbed(const ViewId& view_id) { | |
| 493 const ServerView* view = GetView(view_id); | |
| 494 DCHECK(view && access_policy_->CanEmbed(view)); | |
| 495 | |
| 496 // Only allow a node to be the root for one connection. | |
| 497 ViewTreeImpl* existing_owner = | |
| 498 connection_manager_->GetConnectionWithRoot(view_id); | |
| 499 | |
| 500 ConnectionManager::ScopedChange change(this, connection_manager_, true); | |
| 501 RemoveChildrenAsPartOfEmbed(view_id); | |
| 502 if (existing_owner) { | |
| 503 // Never message the originating connection. | |
| 504 connection_manager_->OnConnectionMessagedClient(id_); | |
| 505 existing_owner->RemoveRoot(); | |
| 506 } | |
| 507 } | |
| 508 | |
| 509 void ViewTreeImpl::RemoveChildrenAsPartOfEmbed(const ViewId& view_id) { | |
| 510 ServerView* view = GetView(view_id); | |
| 511 CHECK(view); | |
| 512 CHECK(view->id().connection_id == view_id.connection_id); | |
| 513 std::vector<ServerView*> children = view->GetChildren(); | |
| 514 for (size_t i = 0; i < children.size(); ++i) | |
| 515 view->Remove(children[i]); | |
| 516 } | |
| 517 | |
| 518 void ViewTreeImpl::CreateView( | |
| 519 Id transport_view_id, | |
| 520 const Callback<void(mojo::ErrorCode)>& callback) { | |
| 521 callback.Run(CreateView(ViewIdFromTransportId(transport_view_id))); | |
| 522 } | |
| 523 | |
| 524 void ViewTreeImpl::DeleteView( | |
| 525 Id transport_view_id, | |
| 526 const Callback<void(bool)>& callback) { | |
| 527 ServerView* view = GetView(ViewIdFromTransportId(transport_view_id)); | |
| 528 bool success = false; | |
| 529 if (view && access_policy_->CanDeleteView(view)) { | |
| 530 ViewTreeImpl* connection = | |
| 531 connection_manager_->GetConnection(view->id().connection_id); | |
| 532 success = connection && connection->DeleteViewImpl(this, view); | |
| 533 } | |
| 534 callback.Run(success); | |
| 535 } | |
| 536 | |
| 537 void ViewTreeImpl::AddView( | |
| 538 Id parent_id, | |
| 539 Id child_id, | |
| 540 const Callback<void(bool)>& callback) { | |
| 541 callback.Run(AddView(ViewIdFromTransportId(parent_id), | |
| 542 ViewIdFromTransportId(child_id))); | |
| 543 } | |
| 544 | |
| 545 void ViewTreeImpl::RemoveViewFromParent( | |
| 546 Id view_id, | |
| 547 const Callback<void(bool)>& callback) { | |
| 548 bool success = false; | |
| 549 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 550 if (view && view->parent() && access_policy_->CanRemoveViewFromParent(view)) { | |
| 551 success = true; | |
| 552 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 553 view->parent()->Remove(view); | |
| 554 } | |
| 555 callback.Run(success); | |
| 556 } | |
| 557 | |
| 558 void ViewTreeImpl::ReorderView(Id view_id, | |
| 559 Id relative_view_id, | |
| 560 OrderDirection direction, | |
| 561 const Callback<void(bool)>& callback) { | |
| 562 bool success = false; | |
| 563 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 564 ServerView* relative_view = GetView(ViewIdFromTransportId(relative_view_id)); | |
| 565 if (CanReorderView(view, relative_view, direction)) { | |
| 566 success = true; | |
| 567 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 568 view->parent()->Reorder(view, relative_view, direction); | |
| 569 connection_manager_->ProcessViewReorder(view, relative_view, direction); | |
| 570 } | |
| 571 callback.Run(success); | |
| 572 } | |
| 573 | |
| 574 void ViewTreeImpl::GetViewTree( | |
| 575 Id view_id, | |
| 576 const Callback<void(Array<ViewDataPtr>)>& callback) { | |
| 577 std::vector<const ServerView*> views( | |
| 578 GetViewTree(ViewIdFromTransportId(view_id))); | |
| 579 callback.Run(ViewsToViewDatas(views)); | |
| 580 } | |
| 581 | |
| 582 void ViewTreeImpl::SetViewBounds( | |
| 583 Id view_id, | |
| 584 mojo::RectPtr bounds, | |
| 585 const Callback<void(bool)>& callback) { | |
| 586 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 587 const bool success = view && access_policy_->CanSetViewBounds(view); | |
| 588 if (success) { | |
| 589 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 590 view->SetBounds(bounds.To<gfx::Rect>()); | |
| 591 } | |
| 592 callback.Run(success); | |
| 593 } | |
| 594 | |
| 595 void ViewTreeImpl::SetViewVisibility( | |
| 596 Id transport_view_id, | |
| 597 bool visible, | |
| 598 const Callback<void(bool)>& callback) { | |
| 599 callback.Run( | |
| 600 SetViewVisibility(ViewIdFromTransportId(transport_view_id), visible)); | |
| 601 } | |
| 602 | |
| 603 void ViewTreeImpl::SetViewProperty( | |
| 604 uint32_t view_id, | |
| 605 const mojo::String& name, | |
| 606 mojo::Array<uint8_t> value, | |
| 607 const mojo::Callback<void(bool)>& callback) { | |
| 608 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 609 const bool success = view && access_policy_->CanSetViewProperties(view); | |
| 610 if (success) { | |
| 611 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 612 | |
| 613 if (value.is_null()) { | |
| 614 view->SetProperty(name, nullptr); | |
| 615 } else { | |
| 616 std::vector<uint8_t> data = value.To<std::vector<uint8_t>>(); | |
| 617 view->SetProperty(name, &data); | |
| 618 } | |
| 619 } | |
| 620 callback.Run(success); | |
| 621 } | |
| 622 | |
| 623 void ViewTreeImpl::RequestSurface( | |
| 624 mojo::Id view_id, | |
| 625 mojo::InterfaceRequest<mojo::Surface> surface, | |
| 626 mojo::SurfaceClientPtr client) { | |
| 627 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 628 const bool success = view && access_policy_->CanSetViewSurfaceId(view); | |
| 629 if (!success) | |
| 630 return; | |
| 631 view->Bind(surface.Pass(), client.Pass()); | |
| 632 } | |
| 633 | |
| 634 void ViewTreeImpl::SetViewTextInputState( | |
| 635 uint32_t view_id, | |
| 636 mojo::TextInputStatePtr state) { | |
| 637 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 638 bool success = view && access_policy_->CanSetViewTextInputState(view); | |
| 639 if (success) | |
| 640 view->SetTextInputState(state.To<ui::TextInputState>()); | |
| 641 } | |
| 642 | |
| 643 void ViewTreeImpl::SetImeVisibility(Id transport_view_id, | |
| 644 bool visible, | |
| 645 mojo::TextInputStatePtr state) { | |
| 646 ServerView* view = GetView(ViewIdFromTransportId(transport_view_id)); | |
| 647 bool success = view && access_policy_->CanSetViewTextInputState(view); | |
| 648 if (success) { | |
| 649 if (!state.is_null()) | |
| 650 view->SetTextInputState(state.To<ui::TextInputState>()); | |
| 651 | |
| 652 ViewTreeHostImpl* host = GetHost(); | |
| 653 if (host) | |
| 654 host->SetImeVisibility(view, visible); | |
| 655 } | |
| 656 } | |
| 657 | |
| 658 void ViewTreeImpl::SetAccessPolicy(Id transport_view_id, | |
| 659 uint32 policy_bitmask) { | |
| 660 const ViewId view_id(ViewIdFromTransportId(transport_view_id)); | |
| 661 ServerView* view = GetView(view_id); | |
| 662 if (!view) | |
| 663 return; | |
| 664 | |
| 665 ViewTreeImpl* existing_owner = | |
| 666 connection_manager_->GetConnectionWithRoot(view_id); | |
| 667 if (existing_owner) | |
| 668 return; // Only allow changing the access policy when nothing is embedded. | |
| 669 | |
| 670 if (access_policy_->CanSetAccessPolicy(view)) | |
| 671 view->set_pending_access_policy(policy_bitmask); | |
| 672 } | |
| 673 | |
| 674 void ViewTreeImpl::Embed(mojo::Id transport_view_id, | |
| 675 mojo::ViewTreeClientPtr client, | |
| 676 const EmbedCallback& callback) { | |
| 677 mojo::ConnectionSpecificId connection_id = kInvalidConnectionId; | |
| 678 const bool result = Embed(ViewIdFromTransportId(transport_view_id), | |
| 679 client.Pass(), &connection_id); | |
| 680 callback.Run(result, connection_id); | |
| 681 } | |
| 682 | |
| 683 void ViewTreeImpl::SetFocus(uint32_t view_id) { | |
| 684 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 685 // TODO(beng): consider shifting non-policy drawn check logic to VTH's | |
| 686 // FocusController. | |
| 687 if (view && view->IsDrawn() && access_policy_->CanSetFocus(view)) { | |
| 688 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 689 ViewTreeHostImpl* host = GetHost(); | |
| 690 if (host) | |
| 691 host->SetFocusedView(view); | |
| 692 } | |
| 693 } | |
| 694 | |
| 695 bool ViewTreeImpl::IsRootForAccessPolicy(const ViewId& id) const { | |
| 696 return IsRoot(id); | |
| 697 } | |
| 698 | |
| 699 bool ViewTreeImpl::IsViewKnownForAccessPolicy(const ServerView* view) const { | |
| 700 return IsViewKnown(view); | |
| 701 } | |
| 702 | |
| 703 bool ViewTreeImpl::IsViewRootOfAnotherConnectionForAccessPolicy( | |
| 704 const ServerView* view) const { | |
| 705 ViewTreeImpl* connection = | |
| 706 connection_manager_->GetConnectionWithRoot(view->id()); | |
| 707 return connection && connection != this; | |
| 708 } | |
| 709 | |
| 710 bool ViewTreeImpl::IsDescendantOfEmbedRoot(const ServerView* view) { | |
| 711 return is_embed_root_ && root_ && GetView(*root_)->Contains(view); | |
| 712 } | |
| 713 | |
| 714 } // namespace view_manager | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1344573002:
Mandoline: Rename components/view_manager to components/mus (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master