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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 "mojo/services/public/cpp/view_manager/lib/view_manager_synchronizer.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/message_loop/message_loop.h" | |
| 9 #include "mojo/public/cpp/application/application.h" | |
| 10 #include "mojo/public/cpp/application/connect.h" | |
| 11 #include "mojo/public/interfaces/service_provider/service_provider.mojom.h" | |
| 12 #include "mojo/services/public/cpp/view_manager/lib/view_private.h" | |
| 13 #include "mojo/services/public/cpp/view_manager/lib/view_tree_node_private.h" | |
| 14 #include "mojo/services/public/cpp/view_manager/util.h" | |
| 15 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h" | |
| 16 #include "mojo/services/public/cpp/view_manager/view_observer.h" | |
| 17 #include "mojo/services/public/cpp/view_manager/view_tree_node_observer.h" | |
| 18 #include "third_party/skia/include/core/SkBitmap.h" | |
| 19 #include "ui/gfx/codec/png_codec.h" | |
| 20 | |
| 21 namespace mojo { | |
| 22 namespace view_manager { | |
| 23 | |
| 24 Id MakeTransportId(ConnectionSpecificId connection_id, | |
| 25 ConnectionSpecificId local_id) { | |
| 26 return (connection_id << 16) | local_id; | |
| 27 } | |
| 28 | |
| 29 // Helper called to construct a local node/view object from transport data. | |
| 30 ViewTreeNode* AddNodeToViewManager(ViewManagerSynchronizer* synchronizer, | |
| 31 ViewTreeNode* parent, | |
| 32 Id node_id, | |
| 33 Id view_id, | |
| 34 const gfx::Rect& bounds) { | |
| 35 // We don't use the ctor that takes a ViewManager here, since it will call | |
| 36 // back to the service and attempt to create a new node. | |
| 37 ViewTreeNode* node = ViewTreeNodePrivate::LocalCreate(); | |
| 38 ViewTreeNodePrivate private_node(node); | |
| 39 private_node.set_view_manager(synchronizer); | |
| 40 private_node.set_id(node_id); | |
| 41 private_node.LocalSetBounds(gfx::Rect(), bounds); | |
| 42 if (parent) | |
| 43 ViewTreeNodePrivate(parent).LocalAddChild(node); | |
| 44 synchronizer->AddNode(node); | |
| 45 | |
| 46 // View. | |
| 47 if (view_id != 0) { | |
| 48 View* view = ViewPrivate::LocalCreate(); | |
| 49 ViewPrivate private_view(view); | |
| 50 private_view.set_view_manager(synchronizer); | |
| 51 private_view.set_id(view_id); | |
| 52 private_view.set_node(node); | |
| 53 // TODO(beng): this broadcasts notifications locally... do we want this? I | |
| 54 // don't think so. same story for LocalAddChild above! | |
| 55 private_node.LocalSetActiveView(view); | |
| 56 synchronizer->AddView(view); | |
| 57 } | |
| 58 return node; | |
| 59 } | |
| 60 | |
| 61 ViewTreeNode* BuildNodeTree(ViewManagerSynchronizer* synchronizer, | |
| 62 const Array<NodeDataPtr>& nodes) { | |
| 63 std::vector<ViewTreeNode*> parents; | |
| 64 ViewTreeNode* root = NULL; | |
| 65 ViewTreeNode* last_node = NULL; | |
| 66 for (size_t i = 0; i < nodes.size(); ++i) { | |
| 67 if (last_node && nodes[i]->parent_id == last_node->id()) { | |
| 68 parents.push_back(last_node); | |
| 69 } else if (!parents.empty()) { | |
| 70 while (parents.back()->id() != nodes[i]->parent_id) | |
| 71 parents.pop_back(); | |
| 72 } | |
| 73 ViewTreeNode* node = AddNodeToViewManager( | |
| 74 synchronizer, | |
| 75 !parents.empty() ? parents.back() : NULL, | |
| 76 nodes[i]->node_id, | |
| 77 nodes[i]->view_id, | |
| 78 nodes[i]->bounds.To<gfx::Rect>()); | |
| 79 if (!last_node) | |
| 80 root = node; | |
| 81 last_node = node; | |
| 82 } | |
| 83 return root; | |
| 84 } | |
| 85 | |
| 86 // Responsible for removing a root from the ViewManager when that node is | |
| 87 // destroyed. | |
| 88 class RootObserver : public ViewTreeNodeObserver { | |
| 89 public: | |
| 90 explicit RootObserver(ViewTreeNode* root) : root_(root) {} | |
| 91 virtual ~RootObserver() {} | |
| 92 | |
| 93 private: | |
| 94 // Overridden from ViewTreeNodeObserver: | |
| 95 virtual void OnNodeDestroy(ViewTreeNode* node, | |
| 96 DispositionChangePhase phase) OVERRIDE { | |
| 97 DCHECK_EQ(node, root_); | |
| 98 if (phase != ViewTreeNodeObserver::DISPOSITION_CHANGED) | |
| 99 return; | |
| 100 static_cast<ViewManagerSynchronizer*>( | |
| 101 ViewTreeNodePrivate(root_).view_manager())->RemoveRoot(root_); | |
| 102 delete this; | |
| 103 } | |
| 104 | |
| 105 ViewTreeNode* root_; | |
| 106 | |
| 107 DISALLOW_COPY_AND_ASSIGN(RootObserver); | |
| 108 }; | |
| 109 | |
| 110 class ViewManagerTransaction { | |
| 111 public: | |
| 112 virtual ~ViewManagerTransaction() {} | |
| 113 | |
| 114 void Commit() { | |
| 115 DCHECK(!committed_); | |
| 116 DoCommit(); | |
| 117 committed_ = true; | |
| 118 } | |
| 119 | |
| 120 bool committed() const { return committed_; } | |
| 121 | |
| 122 protected: | |
| 123 explicit ViewManagerTransaction(ViewManagerSynchronizer* synchronizer) | |
| 124 : committed_(false), | |
| 125 synchronizer_(synchronizer) { | |
| 126 } | |
| 127 | |
| 128 // Overridden to perform transaction-specific commit actions. | |
| 129 virtual void DoCommit() = 0; | |
| 130 | |
| 131 // Overridden to perform transaction-specific cleanup on commit ack from the | |
| 132 // service. | |
| 133 virtual void DoActionCompleted(bool success) = 0; | |
| 134 | |
| 135 ViewManagerService* service() { return synchronizer_->service_; } | |
| 136 | |
| 137 Id GetAndAdvanceNextServerChangeId() { | |
| 138 return synchronizer_->next_server_change_id_++; | |
| 139 } | |
| 140 | |
| 141 base::Callback<void(bool)> ActionCompletedCallback() { | |
| 142 return base::Bind(&ViewManagerTransaction::OnActionCompleted, | |
| 143 base::Unretained(this)); | |
| 144 } | |
| 145 | |
| 146 private: | |
| 147 // General callback to be used for commits to the service. | |
| 148 void OnActionCompleted(bool success) { | |
| 149 DCHECK(success); | |
| 150 DoActionCompleted(success); | |
| 151 synchronizer_->RemoveFromPendingQueue(this); | |
| 152 } | |
| 153 | |
| 154 bool committed_; | |
| 155 ViewManagerSynchronizer* synchronizer_; | |
| 156 | |
| 157 DISALLOW_COPY_AND_ASSIGN(ViewManagerTransaction); | |
| 158 }; | |
| 159 | |
| 160 class CreateViewTransaction : public ViewManagerTransaction { | |
| 161 public: | |
| 162 CreateViewTransaction(Id view_id, ViewManagerSynchronizer* synchronizer) | |
| 163 : ViewManagerTransaction(synchronizer), | |
| 164 view_id_(view_id) {} | |
| 165 virtual ~CreateViewTransaction() {} | |
| 166 | |
| 167 private: | |
| 168 // Overridden from ViewManagerTransaction: | |
| 169 virtual void DoCommit() OVERRIDE { | |
| 170 service()->CreateView(view_id_, ActionCompletedCallback()); | |
| 171 } | |
| 172 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 173 // TODO(beng): failure. | |
| 174 } | |
| 175 | |
| 176 const Id view_id_; | |
| 177 | |
| 178 DISALLOW_COPY_AND_ASSIGN(CreateViewTransaction); | |
| 179 }; | |
| 180 | |
| 181 class DestroyViewTransaction : public ViewManagerTransaction { | |
| 182 public: | |
| 183 DestroyViewTransaction(Id view_id, ViewManagerSynchronizer* synchronizer) | |
| 184 : ViewManagerTransaction(synchronizer), | |
| 185 view_id_(view_id) {} | |
| 186 virtual ~DestroyViewTransaction() {} | |
| 187 | |
| 188 private: | |
| 189 // Overridden from ViewManagerTransaction: | |
| 190 virtual void DoCommit() OVERRIDE { | |
| 191 service()->DeleteView(view_id_, ActionCompletedCallback()); | |
| 192 } | |
| 193 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 194 // TODO(beng): recovery? | |
| 195 } | |
| 196 | |
| 197 const Id view_id_; | |
| 198 | |
| 199 DISALLOW_COPY_AND_ASSIGN(DestroyViewTransaction); | |
| 200 }; | |
| 201 | |
| 202 class CreateViewTreeNodeTransaction : public ViewManagerTransaction { | |
| 203 public: | |
| 204 CreateViewTreeNodeTransaction(Id node_id, | |
| 205 ViewManagerSynchronizer* synchronizer) | |
| 206 : ViewManagerTransaction(synchronizer), | |
| 207 node_id_(node_id) {} | |
| 208 virtual ~CreateViewTreeNodeTransaction() {} | |
| 209 | |
| 210 private: | |
| 211 // Overridden from ViewManagerTransaction: | |
| 212 virtual void DoCommit() OVERRIDE { | |
| 213 service()->CreateNode(node_id_, ActionCompletedCallback()); | |
| 214 } | |
| 215 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 216 // TODO(beng): Failure means we tried to create with an extant id for this | |
| 217 // connection. It also could mean we tried to do something | |
| 218 // invalid, or we tried applying a change out of order. Figure | |
| 219 // out what to do. | |
| 220 } | |
| 221 | |
| 222 const Id node_id_; | |
| 223 | |
| 224 DISALLOW_COPY_AND_ASSIGN(CreateViewTreeNodeTransaction); | |
| 225 }; | |
| 226 | |
| 227 class DestroyViewTreeNodeTransaction : public ViewManagerTransaction { | |
| 228 public: | |
| 229 DestroyViewTreeNodeTransaction(Id node_id, | |
| 230 ViewManagerSynchronizer* synchronizer) | |
| 231 : ViewManagerTransaction(synchronizer), | |
| 232 node_id_(node_id) {} | |
| 233 virtual ~DestroyViewTreeNodeTransaction() {} | |
| 234 | |
| 235 private: | |
| 236 // Overridden from ViewManagerTransaction: | |
| 237 virtual void DoCommit() OVERRIDE { | |
| 238 GetAndAdvanceNextServerChangeId(); | |
| 239 service()->DeleteNode(node_id_, ActionCompletedCallback()); | |
| 240 } | |
| 241 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 242 // TODO(beng): recovery? | |
| 243 } | |
| 244 | |
| 245 const Id node_id_; | |
| 246 DISALLOW_COPY_AND_ASSIGN(DestroyViewTreeNodeTransaction); | |
| 247 }; | |
| 248 | |
| 249 class AddChildTransaction : public ViewManagerTransaction { | |
| 250 public: | |
| 251 AddChildTransaction(Id child_id, | |
| 252 Id parent_id, | |
| 253 ViewManagerSynchronizer* synchronizer) | |
| 254 : ViewManagerTransaction(synchronizer), | |
| 255 child_id_(child_id), | |
| 256 parent_id_(parent_id) {} | |
| 257 virtual ~AddChildTransaction() {} | |
| 258 | |
| 259 private: | |
| 260 // Overridden from ViewManagerTransaction: | |
| 261 virtual void DoCommit() OVERRIDE { | |
| 262 service()->AddNode(parent_id_, | |
| 263 child_id_, | |
| 264 GetAndAdvanceNextServerChangeId(), | |
| 265 ActionCompletedCallback()); | |
| 266 } | |
| 267 | |
| 268 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 269 // TODO(beng): recovery? | |
| 270 } | |
| 271 | |
| 272 const Id child_id_; | |
| 273 const Id parent_id_; | |
| 274 | |
| 275 DISALLOW_COPY_AND_ASSIGN(AddChildTransaction); | |
| 276 }; | |
| 277 | |
| 278 class RemoveChildTransaction : public ViewManagerTransaction { | |
| 279 public: | |
| 280 RemoveChildTransaction(Id child_id, | |
| 281 ViewManagerSynchronizer* synchronizer) | |
| 282 : ViewManagerTransaction(synchronizer), | |
| 283 child_id_(child_id) {} | |
| 284 virtual ~RemoveChildTransaction() {} | |
| 285 | |
| 286 private: | |
| 287 // Overridden from ViewManagerTransaction: | |
| 288 virtual void DoCommit() OVERRIDE { | |
| 289 service()->RemoveNodeFromParent( | |
| 290 child_id_, | |
| 291 GetAndAdvanceNextServerChangeId(), | |
| 292 ActionCompletedCallback()); | |
| 293 } | |
| 294 | |
| 295 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 296 // TODO(beng): recovery? | |
| 297 } | |
| 298 | |
| 299 const Id child_id_; | |
| 300 | |
| 301 DISALLOW_COPY_AND_ASSIGN(RemoveChildTransaction); | |
| 302 }; | |
| 303 | |
| 304 class ReorderNodeTransaction : public ViewManagerTransaction { | |
| 305 public: | |
| 306 ReorderNodeTransaction(Id node_id, | |
| 307 Id relative_id, | |
| 308 OrderDirection direction, | |
| 309 ViewManagerSynchronizer* synchronizer) | |
| 310 : ViewManagerTransaction(synchronizer), | |
| 311 node_id_(node_id), | |
| 312 relative_id_(relative_id), | |
| 313 direction_(direction) {} | |
| 314 virtual ~ReorderNodeTransaction() {} | |
| 315 | |
| 316 private: | |
| 317 // Overridden from ViewManagerTransaction: | |
| 318 virtual void DoCommit() OVERRIDE { | |
| 319 service()->ReorderNode(node_id_, | |
| 320 relative_id_, | |
| 321 direction_, | |
| 322 GetAndAdvanceNextServerChangeId(), | |
| 323 ActionCompletedCallback()); | |
| 324 } | |
| 325 | |
| 326 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 327 // TODO(beng): recovery? | |
| 328 } | |
| 329 | |
| 330 const Id node_id_; | |
| 331 const Id relative_id_; | |
| 332 const OrderDirection direction_; | |
| 333 | |
| 334 DISALLOW_COPY_AND_ASSIGN(ReorderNodeTransaction); | |
| 335 }; | |
| 336 | |
| 337 class SetActiveViewTransaction : public ViewManagerTransaction { | |
| 338 public: | |
| 339 SetActiveViewTransaction(Id node_id, | |
| 340 Id view_id, | |
| 341 ViewManagerSynchronizer* synchronizer) | |
| 342 : ViewManagerTransaction(synchronizer), | |
| 343 node_id_(node_id), | |
| 344 view_id_(view_id) {} | |
| 345 virtual ~SetActiveViewTransaction() {} | |
| 346 | |
| 347 private: | |
| 348 // Overridden from ViewManagerTransaction: | |
| 349 virtual void DoCommit() OVERRIDE { | |
| 350 service()->SetView(node_id_, view_id_, ActionCompletedCallback()); | |
| 351 } | |
| 352 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 353 // TODO(beng): recovery? | |
| 354 } | |
| 355 | |
| 356 const Id node_id_; | |
| 357 const Id view_id_; | |
| 358 | |
| 359 DISALLOW_COPY_AND_ASSIGN(SetActiveViewTransaction); | |
| 360 }; | |
| 361 | |
| 362 class SetBoundsTransaction : public ViewManagerTransaction { | |
| 363 public: | |
| 364 SetBoundsTransaction(Id node_id, | |
| 365 const gfx::Rect& bounds, | |
| 366 ViewManagerSynchronizer* synchronizer) | |
| 367 : ViewManagerTransaction(synchronizer), | |
| 368 node_id_(node_id), | |
| 369 bounds_(bounds) {} | |
| 370 virtual ~SetBoundsTransaction() {} | |
| 371 | |
| 372 private: | |
| 373 // Overridden from ViewManagerTransaction: | |
| 374 virtual void DoCommit() OVERRIDE { | |
| 375 service()->SetNodeBounds( | |
| 376 node_id_, Rect::From(bounds_), ActionCompletedCallback()); | |
| 377 } | |
| 378 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 379 // TODO(beng): recovery? | |
| 380 } | |
| 381 | |
| 382 const Id node_id_; | |
| 383 const gfx::Rect bounds_; | |
| 384 | |
| 385 DISALLOW_COPY_AND_ASSIGN(SetBoundsTransaction); | |
| 386 }; | |
| 387 | |
| 388 class SetViewContentsTransaction : public ViewManagerTransaction { | |
| 389 public: | |
| 390 SetViewContentsTransaction(Id view_id, | |
| 391 const SkBitmap& contents, | |
| 392 ViewManagerSynchronizer* synchronizer) | |
| 393 : ViewManagerTransaction(synchronizer), | |
| 394 view_id_(view_id), | |
| 395 contents_(contents) {} | |
| 396 virtual ~SetViewContentsTransaction() {} | |
| 397 | |
| 398 private: | |
| 399 // Overridden from ViewManagerTransaction: | |
| 400 virtual void DoCommit() OVERRIDE { | |
| 401 std::vector<unsigned char> data; | |
| 402 gfx::PNGCodec::EncodeBGRASkBitmap(contents_, false, &data); | |
| 403 | |
| 404 void* memory = NULL; | |
| 405 ScopedSharedBufferHandle duped; | |
| 406 bool result = CreateMapAndDupSharedBuffer(data.size(), | |
| 407 &memory, | |
| 408 &shared_state_handle_, | |
| 409 &duped); | |
| 410 if (!result) | |
| 411 return; | |
| 412 | |
| 413 memcpy(memory, &data[0], data.size()); | |
| 414 | |
| 415 service()->SetViewContents(view_id_, duped.Pass(), | |
| 416 static_cast<uint32_t>(data.size()), | |
| 417 ActionCompletedCallback()); | |
| 418 } | |
| 419 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 420 // TODO(beng): recovery? | |
| 421 } | |
| 422 | |
| 423 bool CreateMapAndDupSharedBuffer(size_t size, | |
| 424 void** memory, | |
| 425 ScopedSharedBufferHandle* handle, | |
| 426 ScopedSharedBufferHandle* duped) { | |
| 427 MojoResult result = CreateSharedBuffer(NULL, size, handle); | |
| 428 if (result != MOJO_RESULT_OK) | |
| 429 return false; | |
| 430 DCHECK(handle->is_valid()); | |
| 431 | |
| 432 result = DuplicateBuffer(handle->get(), NULL, duped); | |
| 433 if (result != MOJO_RESULT_OK) | |
| 434 return false; | |
| 435 DCHECK(duped->is_valid()); | |
| 436 | |
| 437 result = MapBuffer( | |
| 438 handle->get(), 0, size, memory, MOJO_MAP_BUFFER_FLAG_NONE); | |
| 439 if (result != MOJO_RESULT_OK) | |
| 440 return false; | |
| 441 DCHECK(*memory); | |
| 442 | |
| 443 return true; | |
| 444 } | |
| 445 | |
| 446 const Id view_id_; | |
| 447 const SkBitmap contents_; | |
| 448 ScopedSharedBufferHandle shared_state_handle_; | |
| 449 | |
| 450 DISALLOW_COPY_AND_ASSIGN(SetViewContentsTransaction); | |
| 451 }; | |
| 452 | |
| 453 class EmbedTransaction : public ViewManagerTransaction { | |
| 454 public: | |
| 455 EmbedTransaction(const String& url, | |
| 456 Id node_id, | |
| 457 ViewManagerSynchronizer* synchronizer) | |
| 458 : ViewManagerTransaction(synchronizer), | |
| 459 url_(url), | |
| 460 node_id_(node_id) {} | |
| 461 virtual ~EmbedTransaction() {} | |
| 462 | |
| 463 private: | |
| 464 // Overridden from ViewManagerTransaction: | |
| 465 virtual void DoCommit() OVERRIDE { | |
| 466 std::vector<Id> ids; | |
| 467 ids.push_back(node_id_); | |
| 468 service()->Embed(url_, Array<Id>::From(ids), ActionCompletedCallback()); | |
| 469 } | |
| 470 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 471 // TODO(beng): recovery? | |
| 472 } | |
| 473 | |
| 474 const String url_; | |
| 475 const Id node_id_; | |
| 476 | |
| 477 DISALLOW_COPY_AND_ASSIGN(EmbedTransaction); | |
| 478 }; | |
| 479 | |
| 480 class SetFocusTransaction : public ViewManagerTransaction { | |
| 481 public: | |
| 482 SetFocusTransaction(Id node_id, ViewManagerSynchronizer* synchronizer) | |
| 483 : ViewManagerTransaction(synchronizer), | |
| 484 node_id_(node_id) {} | |
| 485 virtual ~SetFocusTransaction() {} | |
| 486 | |
| 487 private: | |
| 488 // Overridden from ViewManagerTransaction: | |
| 489 virtual void DoCommit() OVERRIDE { | |
| 490 service()->SetFocus(node_id_, ActionCompletedCallback()); | |
| 491 } | |
| 492 virtual void DoActionCompleted(bool success) OVERRIDE { | |
| 493 // TODO(beng): recovery? | |
| 494 } | |
| 495 | |
| 496 const Id node_id_; | |
| 497 | |
| 498 DISALLOW_COPY_AND_ASSIGN(SetFocusTransaction); | |
| 499 }; | |
| 500 | |
| 501 ViewManagerSynchronizer::ViewManagerSynchronizer(ViewManagerDelegate* delegate) | |
| 502 : connected_(false), | |
| 503 connection_id_(0), | |
| 504 next_id_(1), | |
| 505 next_server_change_id_(0), | |
| 506 delegate_(delegate) {} | |
| 507 | |
| 508 ViewManagerSynchronizer::~ViewManagerSynchronizer() { | |
| 509 while (!nodes_.empty()) { | |
| 510 IdToNodeMap::iterator it = nodes_.begin(); | |
| 511 if (OwnsNode(it->second->id())) | |
| 512 it->second->Destroy(); | |
| 513 else | |
| 514 nodes_.erase(it); | |
| 515 } | |
| 516 while (!views_.empty()) { | |
| 517 IdToViewMap::iterator it = views_.begin(); | |
| 518 if (OwnsView(it->second->id())) | |
| 519 it->second->Destroy(); | |
| 520 else | |
| 521 views_.erase(it); | |
| 522 } | |
| 523 } | |
| 524 | |
| 525 Id ViewManagerSynchronizer::CreateViewTreeNode() { | |
| 526 DCHECK(connected_); | |
| 527 const Id node_id(MakeTransportId(connection_id_, ++next_id_)); | |
| 528 pending_transactions_.push_back( | |
| 529 new CreateViewTreeNodeTransaction(node_id, this)); | |
| 530 Sync(); | |
| 531 return node_id; | |
| 532 } | |
| 533 | |
| 534 void ViewManagerSynchronizer::DestroyViewTreeNode(Id node_id) { | |
| 535 DCHECK(connected_); | |
| 536 pending_transactions_.push_back( | |
| 537 new DestroyViewTreeNodeTransaction(node_id, this)); | |
| 538 Sync(); | |
| 539 } | |
| 540 | |
| 541 Id ViewManagerSynchronizer::CreateView() { | |
| 542 DCHECK(connected_); | |
| 543 const Id view_id(MakeTransportId(connection_id_, ++next_id_)); | |
| 544 pending_transactions_.push_back(new CreateViewTransaction(view_id, this)); | |
| 545 Sync(); | |
| 546 return view_id; | |
| 547 } | |
| 548 | |
| 549 void ViewManagerSynchronizer::DestroyView(Id view_id) { | |
| 550 DCHECK(connected_); | |
| 551 pending_transactions_.push_back(new DestroyViewTransaction(view_id, this)); | |
| 552 Sync(); | |
| 553 } | |
| 554 | |
| 555 void ViewManagerSynchronizer::AddChild(Id child_id, | |
| 556 Id parent_id) { | |
| 557 DCHECK(connected_); | |
| 558 pending_transactions_.push_back( | |
| 559 new AddChildTransaction(child_id, parent_id, this)); | |
| 560 Sync(); | |
| 561 } | |
| 562 | |
| 563 void ViewManagerSynchronizer::RemoveChild(Id child_id, Id parent_id) { | |
| 564 DCHECK(connected_); | |
| 565 pending_transactions_.push_back(new RemoveChildTransaction(child_id, this)); | |
| 566 Sync(); | |
| 567 } | |
| 568 | |
| 569 void ViewManagerSynchronizer::Reorder( | |
| 570 Id node_id, | |
| 571 Id relative_node_id, | |
| 572 OrderDirection direction) { | |
| 573 DCHECK(connected_); | |
| 574 pending_transactions_.push_back( | |
| 575 new ReorderNodeTransaction(node_id, relative_node_id, direction, this)); | |
| 576 Sync(); | |
| 577 } | |
| 578 | |
| 579 bool ViewManagerSynchronizer::OwnsNode(Id id) const { | |
| 580 return HiWord(id) == connection_id_; | |
| 581 } | |
| 582 | |
| 583 bool ViewManagerSynchronizer::OwnsView(Id id) const { | |
| 584 return HiWord(id) == connection_id_; | |
| 585 } | |
| 586 | |
| 587 void ViewManagerSynchronizer::SetActiveView(Id node_id, Id view_id) { | |
| 588 DCHECK(connected_); | |
| 589 pending_transactions_.push_back( | |
| 590 new SetActiveViewTransaction(node_id, view_id, this)); | |
| 591 Sync(); | |
| 592 } | |
| 593 | |
| 594 void ViewManagerSynchronizer::SetBounds(Id node_id, const gfx::Rect& bounds) { | |
| 595 DCHECK(connected_); | |
| 596 pending_transactions_.push_back( | |
| 597 new SetBoundsTransaction(node_id, bounds, this)); | |
| 598 Sync(); | |
| 599 } | |
| 600 | |
| 601 void ViewManagerSynchronizer::SetViewContents(Id view_id, | |
| 602 const SkBitmap& contents) { | |
| 603 DCHECK(connected_); | |
| 604 pending_transactions_.push_back( | |
| 605 new SetViewContentsTransaction(view_id, contents, this)); | |
| 606 Sync(); | |
| 607 } | |
| 608 | |
| 609 void ViewManagerSynchronizer::SetFocus(Id node_id) { | |
| 610 DCHECK(connected_); | |
| 611 pending_transactions_.push_back(new SetFocusTransaction(node_id, this)); | |
| 612 Sync(); | |
| 613 } | |
| 614 | |
| 615 void ViewManagerSynchronizer::Embed(const String& url, Id node_id) { | |
| 616 DCHECK(connected_); | |
| 617 pending_transactions_.push_back(new EmbedTransaction(url, node_id, this)); | |
| 618 Sync(); | |
| 619 } | |
| 620 | |
| 621 void ViewManagerSynchronizer::AddNode(ViewTreeNode* node) { | |
| 622 DCHECK(nodes_.find(node->id()) == nodes_.end()); | |
| 623 nodes_[node->id()] = node; | |
| 624 } | |
| 625 | |
| 626 void ViewManagerSynchronizer::RemoveNode(Id node_id) { | |
| 627 IdToNodeMap::iterator it = nodes_.find(node_id); | |
| 628 if (it != nodes_.end()) | |
| 629 nodes_.erase(it); | |
| 630 } | |
| 631 | |
| 632 void ViewManagerSynchronizer::AddView(View* view) { | |
| 633 DCHECK(views_.find(view->id()) == views_.end()); | |
| 634 views_[view->id()] = view; | |
| 635 } | |
| 636 | |
| 637 void ViewManagerSynchronizer::RemoveView(Id view_id) { | |
| 638 IdToViewMap::iterator it = views_.find(view_id); | |
| 639 if (it != views_.end()) | |
| 640 views_.erase(it); | |
| 641 } | |
| 642 | |
| 643 //////////////////////////////////////////////////////////////////////////////// | |
| 644 // ViewManagerSynchronizer, ViewManager implementation: | |
| 645 | |
| 646 const std::string& ViewManagerSynchronizer::GetEmbedderURL() const { | |
| 647 return creator_url_; | |
| 648 } | |
| 649 | |
| 650 const std::vector<ViewTreeNode*>& ViewManagerSynchronizer::GetRoots() const { | |
| 651 return roots_; | |
| 652 } | |
| 653 | |
| 654 ViewTreeNode* ViewManagerSynchronizer::GetNodeById(Id id) { | |
| 655 IdToNodeMap::const_iterator it = nodes_.find(id); | |
| 656 return it != nodes_.end() ? it->second : NULL; | |
| 657 } | |
| 658 | |
| 659 View* ViewManagerSynchronizer::GetViewById(Id id) { | |
| 660 IdToViewMap::const_iterator it = views_.find(id); | |
| 661 return it != views_.end() ? it->second : NULL; | |
| 662 } | |
| 663 | |
| 664 //////////////////////////////////////////////////////////////////////////////// | |
| 665 // ViewManagerSynchronizer, InterfaceImpl overrides: | |
| 666 | |
| 667 void ViewManagerSynchronizer::OnConnectionEstablished() { | |
| 668 service_ = client(); | |
| 669 } | |
| 670 | |
| 671 //////////////////////////////////////////////////////////////////////////////// | |
| 672 // ViewManagerSynchronizer, ViewManagerClient implementation: | |
| 673 | |
| 674 void ViewManagerSynchronizer::OnViewManagerConnectionEstablished( | |
| 675 ConnectionSpecificId connection_id, | |
| 676 const String& creator_url, | |
| 677 Id next_server_change_id, | |
| 678 Array<NodeDataPtr> nodes) { | |
| 679 connected_ = true; | |
| 680 connection_id_ = connection_id; | |
| 681 creator_url_ = TypeConverter<String, std::string>::ConvertFrom(creator_url); | |
| 682 next_server_change_id_ = next_server_change_id; | |
| 683 | |
| 684 DCHECK(pending_transactions_.empty()); | |
| 685 AddRoot(BuildNodeTree(this, nodes)); | |
| 686 } | |
| 687 | |
| 688 void ViewManagerSynchronizer::OnRootsAdded(Array<NodeDataPtr> nodes) { | |
| 689 AddRoot(BuildNodeTree(this, nodes)); | |
| 690 } | |
| 691 | |
| 692 void ViewManagerSynchronizer::OnServerChangeIdAdvanced( | |
| 693 Id next_server_change_id) { | |
| 694 next_server_change_id_ = next_server_change_id; | |
| 695 } | |
| 696 | |
| 697 void ViewManagerSynchronizer::OnNodeBoundsChanged(Id node_id, | |
| 698 RectPtr old_bounds, | |
| 699 RectPtr new_bounds) { | |
| 700 ViewTreeNode* node = GetNodeById(node_id); | |
| 701 ViewTreeNodePrivate(node).LocalSetBounds(old_bounds.To<gfx::Rect>(), | |
| 702 new_bounds.To<gfx::Rect>()); | |
| 703 } | |
| 704 | |
| 705 void ViewManagerSynchronizer::OnNodeHierarchyChanged( | |
| 706 Id node_id, | |
| 707 Id new_parent_id, | |
| 708 Id old_parent_id, | |
| 709 Id server_change_id, | |
| 710 mojo::Array<NodeDataPtr> nodes) { | |
| 711 next_server_change_id_ = server_change_id + 1; | |
| 712 | |
| 713 BuildNodeTree(this, nodes); | |
| 714 | |
| 715 ViewTreeNode* new_parent = GetNodeById(new_parent_id); | |
| 716 ViewTreeNode* old_parent = GetNodeById(old_parent_id); | |
| 717 ViewTreeNode* node = GetNodeById(node_id); | |
| 718 if (new_parent) | |
| 719 ViewTreeNodePrivate(new_parent).LocalAddChild(node); | |
| 720 else | |
| 721 ViewTreeNodePrivate(old_parent).LocalRemoveChild(node); | |
| 722 } | |
| 723 | |
| 724 void ViewManagerSynchronizer::OnNodeReordered(Id node_id, | |
| 725 Id relative_node_id, | |
| 726 OrderDirection direction, | |
| 727 Id server_change_id) { | |
| 728 next_server_change_id_ = server_change_id + 1; | |
| 729 | |
| 730 ViewTreeNode* node = GetNodeById(node_id); | |
| 731 ViewTreeNode* relative_node = GetNodeById(relative_node_id); | |
| 732 if (node && relative_node) { | |
| 733 ViewTreeNodePrivate(node).LocalReorder(relative_node, direction); | |
| 734 } | |
| 735 } | |
| 736 | |
| 737 void ViewManagerSynchronizer::OnNodeDeleted(Id node_id, Id server_change_id) { | |
| 738 next_server_change_id_ = server_change_id + 1; | |
| 739 | |
| 740 ViewTreeNode* node = GetNodeById(node_id); | |
| 741 if (node) | |
| 742 ViewTreeNodePrivate(node).LocalDestroy(); | |
| 743 } | |
| 744 | |
| 745 void ViewManagerSynchronizer::OnNodeViewReplaced(Id node_id, | |
| 746 Id new_view_id, | |
| 747 Id old_view_id) { | |
| 748 ViewTreeNode* node = GetNodeById(node_id); | |
| 749 View* new_view = GetViewById(new_view_id); | |
| 750 if (!new_view && new_view_id != 0) { | |
| 751 // This client wasn't aware of this View until now. | |
| 752 new_view = ViewPrivate::LocalCreate(); | |
| 753 ViewPrivate private_view(new_view); | |
| 754 private_view.set_view_manager(this); | |
| 755 private_view.set_id(new_view_id); | |
| 756 private_view.set_node(node); | |
| 757 AddView(new_view); | |
| 758 } | |
| 759 View* old_view = GetViewById(old_view_id); | |
| 760 DCHECK_EQ(old_view, node->active_view()); | |
| 761 ViewTreeNodePrivate(node).LocalSetActiveView(new_view); | |
| 762 } | |
| 763 | |
| 764 void ViewManagerSynchronizer::OnViewDeleted(Id view_id) { | |
| 765 View* view = GetViewById(view_id); | |
| 766 if (view) | |
| 767 ViewPrivate(view).LocalDestroy(); | |
| 768 } | |
| 769 | |
| 770 void ViewManagerSynchronizer::OnViewInputEvent( | |
| 771 Id view_id, | |
| 772 EventPtr event, | |
| 773 const Callback<void()>& ack_callback) { | |
| 774 View* view = GetViewById(view_id); | |
| 775 if (view) { | |
| 776 FOR_EACH_OBSERVER(ViewObserver, | |
| 777 *ViewPrivate(view).observers(), | |
| 778 OnViewInputEvent(view, event)); | |
| 779 } | |
| 780 ack_callback.Run(); | |
| 781 } | |
| 782 | |
| 783 //////////////////////////////////////////////////////////////////////////////// | |
| 784 // ViewManagerSynchronizer, private: | |
| 785 | |
| 786 void ViewManagerSynchronizer::Sync() { | |
| 787 // The service connection may not be set up yet. OnConnectionEstablished() | |
| 788 // will schedule another sync when it is. | |
| 789 if (!connected_) | |
| 790 return; | |
| 791 | |
| 792 Transactions::const_iterator it = pending_transactions_.begin(); | |
| 793 for (; it != pending_transactions_.end(); ++it) { | |
| 794 if (!(*it)->committed()) | |
| 795 (*it)->Commit(); | |
| 796 } | |
| 797 } | |
| 798 | |
| 799 void ViewManagerSynchronizer::RemoveFromPendingQueue( | |
| 800 ViewManagerTransaction* transaction) { | |
| 801 DCHECK_EQ(transaction, pending_transactions_.front()); | |
| 802 pending_transactions_.erase(pending_transactions_.begin()); | |
| 803 if (pending_transactions_.empty() && !changes_acked_callback_.is_null()) | |
| 804 changes_acked_callback_.Run(); | |
| 805 } | |
| 806 | |
| 807 void ViewManagerSynchronizer::AddRoot(ViewTreeNode* root) { | |
| 808 // A new root must not already exist as a root or be contained by an existing | |
| 809 // hierarchy visible to this view manager. | |
| 810 std::vector<ViewTreeNode*>::const_iterator it = roots_.begin(); | |
| 811 for (; it != roots_.end(); ++it) { | |
| 812 if (*it == root || (*it)->Contains(root)) | |
| 813 return; | |
| 814 } | |
| 815 roots_.push_back(root); | |
| 816 root->AddObserver(new RootObserver(root)); | |
| 817 delegate_->OnRootAdded(this, root); | |
| 818 } | |
| 819 | |
| 820 void ViewManagerSynchronizer::RemoveRoot(ViewTreeNode* root) { | |
| 821 std::vector<ViewTreeNode*>::iterator it = | |
| 822 std::find(roots_.begin(), roots_.end(), root); | |
| 823 if (it != roots_.end()) { | |
| 824 roots_.erase(it); | |
| 825 delegate_->OnRootRemoved(this, root); | |
| 826 } | |
| 827 } | |
| 828 | |
| 829 //////////////////////////////////////////////////////////////////////////////// | |
| 830 // ViewManager, public: | |
| 831 | |
| 832 // static | |
| 833 void ViewManager::Create(Application* application, | |
| 834 ViewManagerDelegate* delegate) { | |
| 835 application->AddService<ViewManagerSynchronizer>(delegate); | |
| 836 } | |
| 837 | |
| 838 } // namespace view_manager | |
| 839 } // namespace mojo | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 338093008:
Client side name cleanup (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src