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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/mus/view_tree_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/stl_util.h" | |
| 9 #include "components/mus/connection_manager.h" | |
| 10 #include "components/mus/default_access_policy.h" | |
| 11 #include "components/mus/display_manager.h" | |
| 12 #include "components/mus/server_view.h" | |
| 13 #include "components/mus/view_tree_host_impl.h" | |
| 14 #include "components/mus/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::InterfaceRequest; | |
| 24 using mojo::OrderDirection; | |
| 25 using mojo::Rect; | |
| 26 using mojo::ServiceProvider; | |
| 27 using mojo::ServiceProviderPtr; | |
| 28 using mojo::String; | |
| 29 using mojo::ViewDataPtr; | |
| 30 | |
| 31 namespace mus { | |
| 32 | |
| 33 ViewTreeImpl::ViewTreeImpl(ConnectionManager* connection_manager, | |
| 34 ConnectionSpecificId creator_id, | |
| 35 const ViewId& root_id, | |
| 36 uint32_t policy_bitmask) | |
| 37 : connection_manager_(connection_manager), | |
| 38 id_(connection_manager_->GetAndAdvanceNextConnectionId()), | |
| 39 creator_id_(creator_id), | |
| 40 client_(nullptr), | |
| 41 is_embed_root_(false) { | |
| 42 ServerView* view = GetView(root_id); | |
| 43 CHECK(view); | |
| 44 root_.reset(new ViewId(root_id)); | |
| 45 if (view->GetRoot() == view) { | |
| 46 access_policy_.reset(new WindowManagerAccessPolicy(id_, this)); | |
| 47 is_embed_root_ = true; | |
| 48 } else { | |
| 49 access_policy_.reset(new DefaultAccessPolicy(id_, this)); | |
| 50 is_embed_root_ = (policy_bitmask & ViewTree::ACCESS_POLICY_EMBED_ROOT) != 0; | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 ViewTreeImpl::~ViewTreeImpl() { | |
| 55 DestroyViews(); | |
| 56 } | |
| 57 | |
| 58 void ViewTreeImpl::Init(mojo::ViewTreeClient* client, mojo::ViewTreePtr tree) { | |
| 59 DCHECK(!client_); | |
| 60 client_ = client; | |
| 61 std::vector<const ServerView*> to_send; | |
| 62 if (root_.get()) | |
| 63 GetUnknownViewsFrom(GetView(*root_), &to_send); | |
| 64 | |
| 65 // TODO(beng): verify that host can actually be nullptr here. | |
| 66 ViewTreeHostImpl* host = GetHost(); | |
| 67 const ServerView* focused_view = host ? host->GetFocusedView() : nullptr; | |
| 68 if (focused_view) | |
| 69 focused_view = access_policy_->GetViewForFocusChange(focused_view); | |
| 70 const Id focused_view_transport_id( | |
| 71 ViewIdToTransportId(focused_view ? focused_view->id() : ViewId())); | |
| 72 | |
| 73 client->OnEmbed(id_, ViewToViewData(to_send.front()), tree.Pass(), | |
| 74 focused_view_transport_id, | |
| 75 is_embed_root_ ? ViewTree::ACCESS_POLICY_EMBED_ROOT | |
| 76 : ViewTree::ACCESS_POLICY_DEFAULT); | |
| 77 } | |
| 78 | |
| 79 const ServerView* ViewTreeImpl::GetView(const ViewId& id) const { | |
| 80 if (id_ == id.connection_id) { | |
| 81 ViewMap::const_iterator i = view_map_.find(id.view_id); | |
| 82 return i == view_map_.end() ? NULL : i->second; | |
| 83 } | |
| 84 return connection_manager_->GetView(id); | |
| 85 } | |
| 86 | |
| 87 bool ViewTreeImpl::IsRoot(const ViewId& id) const { | |
| 88 return root_.get() && *root_ == id; | |
| 89 } | |
| 90 | |
| 91 ViewTreeHostImpl* ViewTreeImpl::GetHost() { | |
| 92 return root_.get() | |
| 93 ? connection_manager_->GetViewTreeHostByView(GetView(*root_)) | |
| 94 : nullptr; | |
| 95 } | |
| 96 | |
| 97 void ViewTreeImpl::OnWillDestroyViewTreeImpl(ViewTreeImpl* connection) { | |
| 98 if (creator_id_ == connection->id()) | |
| 99 creator_id_ = kInvalidConnectionId; | |
| 100 const ServerView* connection_root = | |
| 101 connection->root_ ? connection->GetView(*connection->root_) : nullptr; | |
| 102 if (connection_root && | |
| 103 ((connection_root->id().connection_id == id_ && | |
| 104 view_map_.count(connection_root->id().view_id) > 0) || | |
| 105 (is_embed_root_ && IsViewKnown(connection_root)))) { | |
| 106 client()->OnEmbeddedAppDisconnected( | |
| 107 ViewIdToTransportId(*connection->root_)); | |
| 108 } | |
| 109 if (root_.get() && root_->connection_id == connection->id()) | |
| 110 root_.reset(); | |
| 111 } | |
| 112 | |
| 113 mojo::ErrorCode ViewTreeImpl::CreateView(const ViewId& view_id) { | |
| 114 if (view_id.connection_id != id_) | |
| 115 return mojo::ERROR_CODE_ILLEGAL_ARGUMENT; | |
| 116 if (view_map_.find(view_id.view_id) != view_map_.end()) | |
| 117 return mojo::ERROR_CODE_VALUE_IN_USE; | |
| 118 view_map_[view_id.view_id] = connection_manager_->CreateServerView(view_id); | |
| 119 known_views_.insert(ViewIdToTransportId(view_id)); | |
| 120 return mojo::ERROR_CODE_NONE; | |
| 121 } | |
| 122 | |
| 123 bool ViewTreeImpl::AddView(const ViewId& parent_id, const ViewId& child_id) { | |
| 124 ServerView* parent = GetView(parent_id); | |
| 125 ServerView* child = GetView(child_id); | |
| 126 if (parent && child && child->parent() != parent && | |
| 127 !child->Contains(parent) && access_policy_->CanAddView(parent, child)) { | |
| 128 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 129 parent->Add(child); | |
| 130 return true; | |
| 131 } | |
| 132 return false; | |
| 133 } | |
| 134 | |
| 135 std::vector<const ServerView*> ViewTreeImpl::GetViewTree( | |
| 136 const ViewId& view_id) const { | |
| 137 const ServerView* view = GetView(view_id); | |
| 138 std::vector<const ServerView*> views; | |
| 139 if (view) | |
| 140 GetViewTreeImpl(view, &views); | |
| 141 return views; | |
| 142 } | |
| 143 | |
| 144 bool ViewTreeImpl::SetViewVisibility(const ViewId& view_id, bool visible) { | |
| 145 ServerView* view = GetView(view_id); | |
| 146 if (!view || view->visible() == visible || | |
| 147 !access_policy_->CanChangeViewVisibility(view)) { | |
| 148 return false; | |
| 149 } | |
| 150 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 151 view->SetVisible(visible); | |
| 152 return true; | |
| 153 } | |
| 154 | |
| 155 bool ViewTreeImpl::Embed(const ViewId& view_id, | |
| 156 mojo::ViewTreeClientPtr client, | |
| 157 uint32_t policy_bitmask, | |
| 158 ConnectionSpecificId* connection_id) { | |
| 159 *connection_id = kInvalidConnectionId; | |
| 160 if (!client.get() || !CanEmbed(view_id, policy_bitmask)) | |
| 161 return false; | |
| 162 PrepareForEmbed(view_id); | |
| 163 ViewTreeImpl* new_connection = connection_manager_->EmbedAtView( | |
| 164 id_, view_id, policy_bitmask, client.Pass()); | |
| 165 if (is_embed_root_) | |
| 166 *connection_id = new_connection->id(); | |
| 167 return true; | |
| 168 } | |
| 169 | |
| 170 void ViewTreeImpl::Embed(const ViewId& view_id, mojo::URLRequestPtr request) { | |
| 171 if (!CanEmbed(view_id, ViewTree::ACCESS_POLICY_DEFAULT)) | |
| 172 return; | |
| 173 PrepareForEmbed(view_id); | |
| 174 connection_manager_->EmbedAtView( | |
| 175 id_, view_id, mojo::ViewTree::ACCESS_POLICY_DEFAULT, request.Pass()); | |
| 176 } | |
| 177 | |
| 178 void ViewTreeImpl::ProcessViewBoundsChanged(const ServerView* view, | |
| 179 const gfx::Rect& old_bounds, | |
| 180 const gfx::Rect& new_bounds, | |
| 181 bool originated_change) { | |
| 182 if (originated_change || !IsViewKnown(view)) | |
| 183 return; | |
| 184 client()->OnViewBoundsChanged(ViewIdToTransportId(view->id()), | |
| 185 Rect::From(old_bounds), Rect::From(new_bounds)); | |
| 186 } | |
| 187 | |
| 188 void ViewTreeImpl::ProcessViewportMetricsChanged( | |
| 189 const mojo::ViewportMetrics& old_metrics, | |
| 190 const mojo::ViewportMetrics& new_metrics, | |
| 191 bool originated_change) { | |
| 192 client()->OnViewViewportMetricsChanged(old_metrics.Clone(), | |
| 193 new_metrics.Clone()); | |
| 194 } | |
| 195 | |
| 196 void ViewTreeImpl::ProcessWillChangeViewHierarchy(const ServerView* view, | |
| 197 const ServerView* new_parent, | |
| 198 const ServerView* old_parent, | |
| 199 bool originated_change) { | |
| 200 if (originated_change) | |
| 201 return; | |
| 202 | |
| 203 const bool old_drawn = view->IsDrawn(); | |
| 204 const bool new_drawn = view->visible() && new_parent && new_parent->IsDrawn(); | |
| 205 if (old_drawn == new_drawn) | |
| 206 return; | |
| 207 | |
| 208 NotifyDrawnStateChanged(view, new_drawn); | |
| 209 } | |
| 210 | |
| 211 void ViewTreeImpl::ProcessViewPropertyChanged( | |
| 212 const ServerView* view, | |
| 213 const std::string& name, | |
| 214 const std::vector<uint8_t>* new_data, | |
| 215 bool originated_change) { | |
| 216 if (originated_change) | |
| 217 return; | |
| 218 | |
| 219 Array<uint8_t> data; | |
| 220 if (new_data) | |
| 221 data = Array<uint8_t>::From(*new_data); | |
| 222 | |
| 223 client()->OnViewSharedPropertyChanged(ViewIdToTransportId(view->id()), | |
| 224 String(name), data.Pass()); | |
| 225 } | |
| 226 | |
| 227 void ViewTreeImpl::ProcessViewHierarchyChanged(const ServerView* view, | |
| 228 const ServerView* new_parent, | |
| 229 const ServerView* old_parent, | |
| 230 bool originated_change) { | |
| 231 if (originated_change && !IsViewKnown(view) && new_parent && | |
| 232 IsViewKnown(new_parent)) { | |
| 233 std::vector<const ServerView*> unused; | |
| 234 GetUnknownViewsFrom(view, &unused); | |
| 235 } | |
| 236 if (originated_change || connection_manager_->is_processing_delete_view() || | |
| 237 connection_manager_->DidConnectionMessageClient(id_)) { | |
| 238 return; | |
| 239 } | |
| 240 | |
| 241 if (!access_policy_->ShouldNotifyOnHierarchyChange(view, &new_parent, | |
| 242 &old_parent)) { | |
| 243 return; | |
| 244 } | |
| 245 // Inform the client of any new views and update the set of views we know | |
| 246 // about. | |
| 247 std::vector<const ServerView*> to_send; | |
| 248 if (!IsViewKnown(view)) | |
| 249 GetUnknownViewsFrom(view, &to_send); | |
| 250 const ViewId new_parent_id(new_parent ? new_parent->id() : ViewId()); | |
| 251 const ViewId old_parent_id(old_parent ? old_parent->id() : ViewId()); | |
| 252 client()->OnViewHierarchyChanged( | |
| 253 ViewIdToTransportId(view->id()), ViewIdToTransportId(new_parent_id), | |
| 254 ViewIdToTransportId(old_parent_id), ViewsToViewDatas(to_send)); | |
| 255 connection_manager_->OnConnectionMessagedClient(id_); | |
| 256 } | |
| 257 | |
| 258 void ViewTreeImpl::ProcessViewReorder(const ServerView* view, | |
| 259 const ServerView* relative_view, | |
| 260 OrderDirection direction, | |
| 261 bool originated_change) { | |
| 262 if (originated_change || !IsViewKnown(view) || !IsViewKnown(relative_view)) | |
| 263 return; | |
| 264 | |
| 265 client()->OnViewReordered(ViewIdToTransportId(view->id()), | |
| 266 ViewIdToTransportId(relative_view->id()), | |
| 267 direction); | |
| 268 } | |
| 269 | |
| 270 void ViewTreeImpl::ProcessViewDeleted(const ViewId& view, | |
| 271 bool originated_change) { | |
| 272 if (view.connection_id == id_) | |
| 273 view_map_.erase(view.view_id); | |
| 274 | |
| 275 const bool in_known = known_views_.erase(ViewIdToTransportId(view)) > 0; | |
| 276 | |
| 277 if (IsRoot(view)) | |
| 278 root_.reset(); | |
| 279 | |
| 280 if (originated_change) | |
| 281 return; | |
| 282 | |
| 283 if (in_known) { | |
| 284 client()->OnViewDeleted(ViewIdToTransportId(view)); | |
| 285 connection_manager_->OnConnectionMessagedClient(id_); | |
| 286 } | |
| 287 } | |
| 288 | |
| 289 void ViewTreeImpl::ProcessWillChangeViewVisibility(const ServerView* view, | |
| 290 bool originated_change) { | |
| 291 if (originated_change) | |
| 292 return; | |
| 293 | |
| 294 if (IsViewKnown(view)) { | |
| 295 client()->OnViewVisibilityChanged(ViewIdToTransportId(view->id()), | |
| 296 !view->visible()); | |
| 297 return; | |
| 298 } | |
| 299 | |
| 300 bool view_target_drawn_state; | |
| 301 if (view->visible()) { | |
| 302 // View is being hidden, won't be drawn. | |
| 303 view_target_drawn_state = false; | |
| 304 } else { | |
| 305 // View is being shown. View will be drawn if its parent is drawn. | |
| 306 view_target_drawn_state = view->parent() && view->parent()->IsDrawn(); | |
| 307 } | |
| 308 | |
| 309 NotifyDrawnStateChanged(view, view_target_drawn_state); | |
| 310 } | |
| 311 | |
| 312 void ViewTreeImpl::ProcessFocusChanged(const ServerView* old_focused_view, | |
| 313 const ServerView* new_focused_view) { | |
| 314 const ServerView* view = | |
| 315 new_focused_view ? access_policy_->GetViewForFocusChange(new_focused_view) | |
| 316 : nullptr; | |
| 317 client()->OnViewFocused(view ? ViewIdToTransportId(view->id()) | |
| 318 : ViewIdToTransportId(ViewId())); | |
| 319 } | |
| 320 | |
| 321 bool ViewTreeImpl::IsViewKnown(const ServerView* view) const { | |
| 322 return known_views_.count(ViewIdToTransportId(view->id())) > 0; | |
| 323 } | |
| 324 | |
| 325 bool ViewTreeImpl::CanReorderView(const ServerView* view, | |
| 326 const ServerView* relative_view, | |
| 327 OrderDirection direction) const { | |
| 328 if (!view || !relative_view) | |
| 329 return false; | |
| 330 | |
| 331 if (!view->parent() || view->parent() != relative_view->parent()) | |
| 332 return false; | |
| 333 | |
| 334 if (!access_policy_->CanReorderView(view, relative_view, direction)) | |
| 335 return false; | |
| 336 | |
| 337 std::vector<const ServerView*> children = view->parent()->GetChildren(); | |
| 338 const size_t child_i = | |
| 339 std::find(children.begin(), children.end(), view) - children.begin(); | |
| 340 const size_t target_i = | |
| 341 std::find(children.begin(), children.end(), relative_view) - | |
| 342 children.begin(); | |
| 343 if ((direction == mojo::ORDER_DIRECTION_ABOVE && child_i == target_i + 1) || | |
| 344 (direction == mojo::ORDER_DIRECTION_BELOW && child_i + 1 == target_i)) { | |
| 345 return false; | |
| 346 } | |
| 347 | |
| 348 return true; | |
| 349 } | |
| 350 | |
| 351 bool ViewTreeImpl::DeleteViewImpl(ViewTreeImpl* source, ServerView* view) { | |
| 352 DCHECK(view); | |
| 353 DCHECK_EQ(view->id().connection_id, id_); | |
| 354 ConnectionManager::ScopedChange change(source, connection_manager_, true); | |
| 355 delete view; | |
| 356 return true; | |
| 357 } | |
| 358 | |
| 359 void ViewTreeImpl::GetUnknownViewsFrom(const ServerView* view, | |
| 360 std::vector<const ServerView*>* views) { | |
| 361 if (IsViewKnown(view) || !access_policy_->CanGetViewTree(view)) | |
| 362 return; | |
| 363 views->push_back(view); | |
| 364 known_views_.insert(ViewIdToTransportId(view->id())); | |
| 365 if (!access_policy_->CanDescendIntoViewForViewTree(view)) | |
| 366 return; | |
| 367 std::vector<const ServerView*> children(view->GetChildren()); | |
| 368 for (size_t i = 0; i < children.size(); ++i) | |
| 369 GetUnknownViewsFrom(children[i], views); | |
| 370 } | |
| 371 | |
| 372 void ViewTreeImpl::RemoveFromKnown(const ServerView* view, | |
| 373 std::vector<ServerView*>* local_views) { | |
| 374 if (view->id().connection_id == id_) { | |
| 375 if (local_views) | |
| 376 local_views->push_back(GetView(view->id())); | |
| 377 return; | |
| 378 } | |
| 379 known_views_.erase(ViewIdToTransportId(view->id())); | |
| 380 std::vector<const ServerView*> children = view->GetChildren(); | |
| 381 for (size_t i = 0; i < children.size(); ++i) | |
| 382 RemoveFromKnown(children[i], local_views); | |
| 383 } | |
| 384 | |
| 385 void ViewTreeImpl::RemoveRoot() { | |
| 386 CHECK(root_.get()); | |
| 387 const ViewId root_id(*root_); | |
| 388 root_.reset(); | |
| 389 // No need to do anything if we created the view. | |
| 390 if (root_id.connection_id == id_) | |
| 391 return; | |
| 392 | |
| 393 client()->OnUnembed(); | |
| 394 client()->OnViewDeleted(ViewIdToTransportId(root_id)); | |
| 395 connection_manager_->OnConnectionMessagedClient(id_); | |
| 396 | |
| 397 // This connection no longer knows about the view. Unparent any views that | |
| 398 // were parented to views in the root. | |
| 399 std::vector<ServerView*> local_views; | |
| 400 RemoveFromKnown(GetView(root_id), &local_views); | |
| 401 for (size_t i = 0; i < local_views.size(); ++i) | |
| 402 local_views[i]->parent()->Remove(local_views[i]); | |
| 403 } | |
| 404 | |
| 405 Array<ViewDataPtr> ViewTreeImpl::ViewsToViewDatas( | |
| 406 const std::vector<const ServerView*>& views) { | |
| 407 Array<ViewDataPtr> array(views.size()); | |
| 408 for (size_t i = 0; i < views.size(); ++i) | |
| 409 array[i] = ViewToViewData(views[i]).Pass(); | |
| 410 return array.Pass(); | |
| 411 } | |
| 412 | |
| 413 ViewDataPtr ViewTreeImpl::ViewToViewData(const ServerView* view) { | |
| 414 DCHECK(IsViewKnown(view)); | |
| 415 const ServerView* parent = view->parent(); | |
| 416 // If the parent isn't known, it means the parent is not visible to us (not | |
| 417 // in roots), and should not be sent over. | |
| 418 if (parent && !IsViewKnown(parent)) | |
| 419 parent = NULL; | |
| 420 ViewDataPtr view_data(mojo::ViewData::New()); | |
| 421 view_data->parent_id = ViewIdToTransportId(parent ? parent->id() : ViewId()); | |
| 422 view_data->view_id = ViewIdToTransportId(view->id()); | |
| 423 view_data->bounds = Rect::From(view->bounds()); | |
| 424 view_data->properties = | |
| 425 mojo::Map<String, Array<uint8_t>>::From(view->properties()); | |
| 426 view_data->visible = view->visible(); | |
| 427 view_data->drawn = view->IsDrawn(); | |
| 428 view_data->viewport_metrics = | |
| 429 connection_manager_->GetViewportMetricsForView(view); | |
| 430 return view_data.Pass(); | |
| 431 } | |
| 432 | |
| 433 void ViewTreeImpl::GetViewTreeImpl( | |
| 434 const ServerView* view, | |
| 435 std::vector<const ServerView*>* views) const { | |
| 436 DCHECK(view); | |
| 437 | |
| 438 if (!access_policy_->CanGetViewTree(view)) | |
| 439 return; | |
| 440 | |
| 441 views->push_back(view); | |
| 442 | |
| 443 if (!access_policy_->CanDescendIntoViewForViewTree(view)) | |
| 444 return; | |
| 445 | |
| 446 std::vector<const ServerView*> children(view->GetChildren()); | |
| 447 for (size_t i = 0; i < children.size(); ++i) | |
| 448 GetViewTreeImpl(children[i], views); | |
| 449 } | |
| 450 | |
| 451 void ViewTreeImpl::NotifyDrawnStateChanged(const ServerView* view, | |
| 452 bool new_drawn_value) { | |
| 453 // Even though we don't know about view, it may be an ancestor of our root, in | |
| 454 // which case the change may effect our roots drawn state. | |
| 455 if (!root_.get()) | |
| 456 return; | |
| 457 | |
| 458 const ServerView* root = GetView(*root_); | |
| 459 DCHECK(root); | |
| 460 if (view->Contains(root) && (new_drawn_value != root->IsDrawn())) { | |
| 461 client()->OnViewDrawnStateChanged(ViewIdToTransportId(root->id()), | |
| 462 new_drawn_value); | |
| 463 } | |
| 464 } | |
| 465 | |
| 466 void ViewTreeImpl::DestroyViews() { | |
| 467 if (!view_map_.empty()) { | |
| 468 ConnectionManager::ScopedChange change(this, connection_manager_, true); | |
| 469 // If we get here from the destructor we're not going to get | |
| 470 // ProcessViewDeleted(). Copy the map and delete from the copy so that we | |
| 471 // don't have to worry about whether |view_map_| changes or not. | |
| 472 ViewMap view_map_copy; | |
| 473 view_map_.swap(view_map_copy); | |
| 474 STLDeleteValues(&view_map_copy); | |
| 475 } | |
| 476 } | |
| 477 | |
| 478 bool ViewTreeImpl::CanEmbed(const ViewId& view_id, | |
| 479 uint32_t policy_bitmask) const { | |
| 480 const ServerView* view = GetView(view_id); | |
| 481 return view && access_policy_->CanEmbed(view, policy_bitmask); | |
| 482 } | |
| 483 | |
| 484 void ViewTreeImpl::PrepareForEmbed(const ViewId& view_id) { | |
| 485 const ServerView* view = GetView(view_id); | |
| 486 DCHECK(view); | |
| 487 | |
| 488 // Only allow a node to be the root for one connection. | |
| 489 ViewTreeImpl* existing_owner = | |
| 490 connection_manager_->GetConnectionWithRoot(view_id); | |
| 491 | |
| 492 ConnectionManager::ScopedChange change(this, connection_manager_, true); | |
| 493 RemoveChildrenAsPartOfEmbed(view_id); | |
| 494 if (existing_owner) { | |
| 495 // Never message the originating connection. | |
| 496 connection_manager_->OnConnectionMessagedClient(id_); | |
| 497 existing_owner->RemoveRoot(); | |
| 498 } | |
| 499 } | |
| 500 | |
| 501 void ViewTreeImpl::RemoveChildrenAsPartOfEmbed(const ViewId& view_id) { | |
| 502 ServerView* view = GetView(view_id); | |
| 503 CHECK(view); | |
| 504 CHECK(view->id().connection_id == view_id.connection_id); | |
| 505 std::vector<ServerView*> children = view->GetChildren(); | |
| 506 for (size_t i = 0; i < children.size(); ++i) | |
| 507 view->Remove(children[i]); | |
| 508 } | |
| 509 | |
| 510 void ViewTreeImpl::CreateView(Id transport_view_id, | |
| 511 const Callback<void(mojo::ErrorCode)>& callback) { | |
| 512 callback.Run(CreateView(ViewIdFromTransportId(transport_view_id))); | |
| 513 } | |
| 514 | |
| 515 void ViewTreeImpl::DeleteView(Id transport_view_id, | |
| 516 const Callback<void(bool)>& callback) { | |
| 517 ServerView* view = GetView(ViewIdFromTransportId(transport_view_id)); | |
| 518 bool success = false; | |
| 519 if (view && access_policy_->CanDeleteView(view)) { | |
| 520 ViewTreeImpl* connection = | |
| 521 connection_manager_->GetConnection(view->id().connection_id); | |
| 522 success = connection && connection->DeleteViewImpl(this, view); | |
| 523 } | |
| 524 callback.Run(success); | |
| 525 } | |
| 526 | |
| 527 void ViewTreeImpl::AddView(Id parent_id, | |
| 528 Id child_id, | |
| 529 const Callback<void(bool)>& callback) { | |
| 530 callback.Run(AddView(ViewIdFromTransportId(parent_id), | |
| 531 ViewIdFromTransportId(child_id))); | |
| 532 } | |
| 533 | |
| 534 void ViewTreeImpl::RemoveViewFromParent(Id view_id, | |
| 535 const Callback<void(bool)>& callback) { | |
| 536 bool success = false; | |
| 537 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 538 if (view && view->parent() && access_policy_->CanRemoveViewFromParent(view)) { | |
| 539 success = true; | |
| 540 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 541 view->parent()->Remove(view); | |
| 542 } | |
| 543 callback.Run(success); | |
| 544 } | |
| 545 | |
| 546 void ViewTreeImpl::ReorderView(Id view_id, | |
| 547 Id relative_view_id, | |
| 548 OrderDirection direction, | |
| 549 const Callback<void(bool)>& callback) { | |
| 550 bool success = false; | |
| 551 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 552 ServerView* relative_view = GetView(ViewIdFromTransportId(relative_view_id)); | |
| 553 if (CanReorderView(view, relative_view, direction)) { | |
| 554 success = true; | |
| 555 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 556 view->parent()->Reorder(view, relative_view, direction); | |
| 557 connection_manager_->ProcessViewReorder(view, relative_view, direction); | |
| 558 } | |
| 559 callback.Run(success); | |
| 560 } | |
| 561 | |
| 562 void ViewTreeImpl::GetViewTree( | |
| 563 Id view_id, | |
| 564 const Callback<void(Array<ViewDataPtr>)>& callback) { | |
| 565 std::vector<const ServerView*> views( | |
| 566 GetViewTree(ViewIdFromTransportId(view_id))); | |
| 567 callback.Run(ViewsToViewDatas(views)); | |
| 568 } | |
| 569 | |
| 570 void ViewTreeImpl::SetViewBounds(Id view_id, | |
| 571 mojo::RectPtr bounds, | |
| 572 const Callback<void(bool)>& callback) { | |
| 573 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 574 const bool success = view && access_policy_->CanSetViewBounds(view); | |
| 575 if (success) { | |
| 576 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 577 view->SetBounds(bounds.To<gfx::Rect>()); | |
| 578 } | |
| 579 callback.Run(success); | |
| 580 } | |
| 581 | |
| 582 void ViewTreeImpl::SetViewVisibility(Id transport_view_id, | |
| 583 bool visible, | |
| 584 const Callback<void(bool)>& callback) { | |
| 585 callback.Run( | |
| 586 SetViewVisibility(ViewIdFromTransportId(transport_view_id), visible)); | |
| 587 } | |
| 588 | |
| 589 void ViewTreeImpl::SetViewProperty(uint32_t view_id, | |
| 590 const mojo::String& name, | |
| 591 mojo::Array<uint8_t> value, | |
| 592 const mojo::Callback<void(bool)>& callback) { | |
| 593 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 594 const bool success = view && access_policy_->CanSetViewProperties(view); | |
| 595 if (success) { | |
| 596 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 597 | |
| 598 if (value.is_null()) { | |
| 599 view->SetProperty(name, nullptr); | |
| 600 } else { | |
| 601 std::vector<uint8_t> data = value.To<std::vector<uint8_t>>(); | |
| 602 view->SetProperty(name, &data); | |
| 603 } | |
| 604 } | |
| 605 callback.Run(success); | |
| 606 } | |
| 607 | |
| 608 void ViewTreeImpl::RequestSurface(Id view_id, | |
| 609 mojo::InterfaceRequest<mojo::Surface> surface, | |
| 610 mojo::SurfaceClientPtr client) { | |
| 611 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 612 const bool success = view && access_policy_->CanSetViewSurfaceId(view); | |
| 613 if (!success) | |
| 614 return; | |
| 615 view->Bind(surface.Pass(), client.Pass()); | |
| 616 } | |
| 617 | |
| 618 void ViewTreeImpl::SetViewTextInputState(uint32_t view_id, | |
| 619 mojo::TextInputStatePtr state) { | |
| 620 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 621 bool success = view && access_policy_->CanSetViewTextInputState(view); | |
| 622 if (success) | |
| 623 view->SetTextInputState(state.To<ui::TextInputState>()); | |
| 624 } | |
| 625 | |
| 626 void ViewTreeImpl::SetImeVisibility(Id transport_view_id, | |
| 627 bool visible, | |
| 628 mojo::TextInputStatePtr state) { | |
| 629 ServerView* view = GetView(ViewIdFromTransportId(transport_view_id)); | |
| 630 bool success = view && access_policy_->CanSetViewTextInputState(view); | |
| 631 if (success) { | |
| 632 if (!state.is_null()) | |
| 633 view->SetTextInputState(state.To<ui::TextInputState>()); | |
| 634 | |
| 635 ViewTreeHostImpl* host = GetHost(); | |
| 636 if (host) | |
| 637 host->SetImeVisibility(view, visible); | |
| 638 } | |
| 639 } | |
| 640 | |
| 641 void ViewTreeImpl::Embed(Id transport_view_id, | |
| 642 mojo::ViewTreeClientPtr client, | |
| 643 uint32_t policy_bitmask, | |
| 644 const EmbedCallback& callback) { | |
| 645 ConnectionSpecificId connection_id = kInvalidConnectionId; | |
| 646 const bool result = Embed(ViewIdFromTransportId(transport_view_id), | |
| 647 client.Pass(), policy_bitmask, &connection_id); | |
| 648 callback.Run(result, connection_id); | |
| 649 } | |
| 650 | |
| 651 void ViewTreeImpl::SetFocus(uint32_t view_id) { | |
| 652 ServerView* view = GetView(ViewIdFromTransportId(view_id)); | |
| 653 // TODO(beng): consider shifting non-policy drawn check logic to VTH's | |
| 654 // FocusController. | |
| 655 if (view && view->IsDrawn() && access_policy_->CanSetFocus(view)) { | |
| 656 ConnectionManager::ScopedChange change(this, connection_manager_, false); | |
| 657 ViewTreeHostImpl* host = GetHost(); | |
| 658 if (host) | |
| 659 host->SetFocusedView(view); | |
| 660 } | |
| 661 } | |
| 662 | |
| 663 bool ViewTreeImpl::IsRootForAccessPolicy(const ViewId& id) const { | |
| 664 return IsRoot(id); | |
| 665 } | |
| 666 | |
| 667 bool ViewTreeImpl::IsViewKnownForAccessPolicy(const ServerView* view) const { | |
| 668 return IsViewKnown(view); | |
| 669 } | |
| 670 | |
| 671 bool ViewTreeImpl::IsViewRootOfAnotherConnectionForAccessPolicy( | |
| 672 const ServerView* view) const { | |
| 673 ViewTreeImpl* connection = | |
| 674 connection_manager_->GetConnectionWithRoot(view->id()); | |
| 675 return connection && connection != this; | |
| 676 } | |
| 677 | |
| 678 bool ViewTreeImpl::IsDescendantOfEmbedRoot(const ServerView* view) { | |
| 679 return is_embed_root_ && root_ && GetView(*root_)->Contains(view); | |
| 680 } | |
| 681 | |
| 682 } // namespace mus | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1377493002:
mus: move View Manager to components/mus/vm (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master