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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/ui/panels/docked_panel_collection.h" | |
| 6 | |
| 7 #include <math.h> | |
| 8 | |
| 9 #include <algorithm> | |
| 10 #include <queue> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/auto_reset.h" | |
| 14 #include "base/bind.h" | |
| 15 #include "base/location.h" | |
| 16 #include "base/logging.h" | |
| 17 #include "base/single_thread_task_runner.h" | |
| 18 #include "base/threading/thread_task_runner_handle.h" | |
| 19 #include "chrome/browser/chrome_notification_types.h" | |
| 20 #include "chrome/browser/ui/panels/panel_drag_controller.h" | |
| 21 #include "chrome/browser/ui/panels/panel_manager.h" | |
| 22 #include "chrome/browser/ui/panels/panel_mouse_watcher.h" | |
| 23 #include "content/public/browser/notification_service.h" | |
| 24 #include "content/public/browser/notification_source.h" | |
| 25 | |
| 26 namespace { | |
| 27 // Width of spacing around panel collection and the left/right edges of the | |
| 28 // screen. | |
| 29 const int kPanelCollectionLeftMargin = 6; | |
| 30 const int kPanelCollectionRightMargin = 24; | |
| 31 | |
| 32 // Occasionally some system, like Windows, might not bring up or down the bottom | |
| 33 // bar when the mouse enters or leaves the bottom screen area. This is the | |
| 34 // maximum time we will wait for the bottom bar visibility change notification. | |
| 35 // After the time expires, we bring up/down the titlebars as planned. | |
| 36 const int kMaxDelayWaitForBottomBarVisibilityChangeMs = 1000; | |
| 37 | |
| 38 // After focus changed, one panel lost active status, another got it, | |
| 39 // we refresh layout with a delay. | |
| 40 const int kRefreshLayoutAfterActivePanelChangeDelayMs = 600; // arbitrary | |
| 41 | |
| 42 // As we refresh panel positions, some or all panels may move. We make sure | |
| 43 // we do not animate too many panels at once as this tends to perform poorly. | |
| 44 const int kNumPanelsToAnimateSimultaneously = 3; | |
| 45 | |
| 46 } // namespace | |
| 47 | |
| 48 DockedPanelCollection::DockedPanelCollection(PanelManager* panel_manager) | |
| 49 : PanelCollection(PanelCollection::DOCKED), | |
| 50 panel_manager_(panel_manager), | |
| 51 minimized_panel_count_(0), | |
| 52 are_titlebars_up_(false), | |
| 53 minimizing_all_(false), | |
| 54 delayed_titlebar_action_(NO_ACTION), | |
| 55 titlebar_action_factory_(this), | |
| 56 refresh_action_factory_(this) { | |
| 57 panel_manager_->display_settings_provider()->AddDesktopBarObserver(this); | |
| 58 OnDisplayChanged(); | |
| 59 } | |
| 60 | |
| 61 DockedPanelCollection::~DockedPanelCollection() { | |
| 62 DCHECK(panels_.empty()); | |
| 63 DCHECK_EQ(0, minimized_panel_count_); | |
| 64 panel_manager_->display_settings_provider()->RemoveDesktopBarObserver(this); | |
| 65 } | |
| 66 | |
| 67 void DockedPanelCollection::OnDisplayChanged() { | |
| 68 work_area_ = | |
| 69 panel_manager_->display_settings_provider()->GetPrimaryWorkArea(); | |
| 70 work_area_.set_x(work_area_.x() + kPanelCollectionLeftMargin); | |
| 71 work_area_.set_width(work_area_.width() - | |
| 72 kPanelCollectionLeftMargin - kPanelCollectionRightMargin); | |
| 73 | |
| 74 if (panels_.empty()) | |
| 75 return; | |
| 76 | |
| 77 for (Panels::const_iterator iter = panels_.begin(); | |
| 78 iter != panels_.end(); ++iter) { | |
| 79 (*iter)->LimitSizeToWorkArea(work_area_); | |
| 80 } | |
| 81 | |
| 82 RefreshLayout(); | |
| 83 } | |
| 84 | |
| 85 void DockedPanelCollection::AddPanel(Panel* panel, | |
| 86 PositioningMask positioning_mask) { | |
| 87 // This method does not handle minimized panels. | |
| 88 DCHECK_EQ(Panel::EXPANDED, panel->expansion_state()); | |
| 89 | |
| 90 DCHECK(panel->initialized()); | |
| 91 DCHECK_NE(this, panel->collection()); | |
| 92 panel->set_collection(this); | |
| 93 | |
| 94 bool default_position = (positioning_mask & KNOWN_POSITION) == 0; | |
| 95 bool update_bounds = (positioning_mask & DO_NOT_UPDATE_BOUNDS) == 0; | |
| 96 | |
| 97 if (default_position) { | |
| 98 gfx::Size full_size = panel->full_size(); | |
| 99 gfx::Point pt = GetDefaultPositionForPanel(full_size); | |
| 100 panel->SetPanelBounds(gfx::Rect(pt, full_size)); | |
| 101 panels_.push_back(panel); | |
| 102 } else { | |
| 103 DCHECK(update_bounds); | |
| 104 int x = panel->GetBounds().x(); | |
| 105 Panels::iterator iter = panels_.begin(); | |
| 106 for (; iter != panels_.end(); ++iter) | |
| 107 if (x > (*iter)->GetBounds().x()) | |
| 108 break; | |
| 109 panels_.insert(iter, panel); | |
| 110 } | |
| 111 | |
| 112 if (update_bounds) { | |
| 113 if ((positioning_mask & DELAY_LAYOUT_REFRESH) != 0) | |
| 114 ScheduleLayoutRefresh(); | |
| 115 else | |
| 116 RefreshLayout(); | |
| 117 } | |
| 118 } | |
| 119 | |
| 120 gfx::Point DockedPanelCollection::GetDefaultPositionForPanel( | |
| 121 const gfx::Size& full_size) const { | |
| 122 int x = 0; | |
| 123 if (!panels_.empty() && | |
| 124 panels_.back()->GetBounds().x() < work_area_.x()) { | |
| 125 // Panels go off screen. Make sure the default position will place | |
| 126 // the panel in view. | |
| 127 Panels::const_reverse_iterator iter = panels_.rbegin(); | |
| 128 for (; iter != panels_.rend(); ++iter) { | |
| 129 if ((*iter)->GetBounds().x() >= work_area_.x()) { | |
| 130 x = (*iter)->GetBounds().x(); | |
| 131 break; | |
| 132 } | |
| 133 } | |
| 134 // At least one panel should fit on the screen. | |
| 135 DCHECK(x > work_area_.x()); | |
| 136 } else { | |
| 137 x = std::max(GetRightMostAvailablePosition() - full_size.width(), | |
| 138 work_area_.x()); | |
| 139 } | |
| 140 return gfx::Point(x, work_area_.bottom() - full_size.height()); | |
| 141 } | |
| 142 | |
| 143 int DockedPanelCollection::StartingRightPosition() const { | |
| 144 return work_area_.right(); | |
| 145 } | |
| 146 | |
| 147 int DockedPanelCollection::GetRightMostAvailablePosition() const { | |
| 148 return panels_.empty() ? StartingRightPosition() : | |
| 149 (panels_.back()->GetBounds().x() - kPanelsHorizontalSpacing); | |
| 150 } | |
| 151 | |
| 152 void DockedPanelCollection::RemovePanel(Panel* panel, RemovalReason reason) { | |
| 153 DCHECK_EQ(this, panel->collection()); | |
| 154 panel->set_collection(NULL); | |
| 155 | |
| 156 // Optimize for the common case of removing the last panel. | |
| 157 DCHECK(!panels_.empty()); | |
| 158 if (panels_.back() == panel) { | |
| 159 panels_.pop_back(); | |
| 160 | |
| 161 // Update the saved panel placement if needed. This is because | |
| 162 // we might remove |saved_panel_placement_.left_panel|. | |
| 163 if (saved_panel_placement_.panel && | |
| 164 saved_panel_placement_.left_panel == panel) | |
| 165 saved_panel_placement_.left_panel = NULL; | |
| 166 | |
| 167 } else { | |
| 168 Panels::iterator iter = find(panels_.begin(), panels_.end(), panel); | |
| 169 DCHECK(iter != panels_.end()); | |
| 170 iter = panels_.erase(iter); | |
| 171 | |
| 172 // Update the saved panel placement if needed. This is because | |
| 173 // we might remove |saved_panel_placement_.left_panel|. | |
| 174 if (saved_panel_placement_.panel && | |
| 175 saved_panel_placement_.left_panel == panel) | |
| 176 saved_panel_placement_.left_panel = *iter; | |
| 177 } | |
| 178 | |
| 179 if (panel->expansion_state() != Panel::EXPANDED) | |
| 180 UpdateMinimizedPanelCount(); | |
| 181 | |
| 182 RefreshLayout(); | |
| 183 } | |
| 184 | |
| 185 void DockedPanelCollection::SavePanelPlacement(Panel* panel) { | |
| 186 DCHECK(!saved_panel_placement_.panel); | |
| 187 | |
| 188 saved_panel_placement_.panel = panel; | |
| 189 | |
| 190 // To recover panel to its original placement, we only need to track the panel | |
| 191 // that is placed after it. | |
| 192 Panels::iterator iter = find(panels_.begin(), panels_.end(), panel); | |
| 193 DCHECK(iter != panels_.end()); | |
| 194 ++iter; | |
| 195 saved_panel_placement_.left_panel = (iter == panels_.end()) ? NULL : *iter; | |
| 196 } | |
| 197 | |
| 198 void DockedPanelCollection::RestorePanelToSavedPlacement() { | |
| 199 DCHECK(saved_panel_placement_.panel); | |
| 200 | |
| 201 Panel* panel = saved_panel_placement_.panel; | |
| 202 | |
| 203 // Find next panel after this panel. | |
| 204 Panels::iterator iter = std::find(panels_.begin(), panels_.end(), panel); | |
| 205 DCHECK(iter != panels_.end()); | |
| 206 Panels::iterator next_iter = iter; | |
| 207 next_iter++; | |
| 208 Panel* next_panel = (next_iter == panels_.end()) ? NULL : *iter; | |
| 209 | |
| 210 // Restoring is only needed when this panel is not in the right position. | |
| 211 if (next_panel != saved_panel_placement_.left_panel) { | |
| 212 // Remove this panel from its current position. | |
| 213 panels_.erase(iter); | |
| 214 | |
| 215 // Insert this panel into its previous position. | |
| 216 if (saved_panel_placement_.left_panel) { | |
| 217 Panels::iterator iter_to_insert_before = std::find(panels_.begin(), | |
| 218 panels_.end(), saved_panel_placement_.left_panel); | |
| 219 DCHECK(iter_to_insert_before != panels_.end()); | |
| 220 panels_.insert(iter_to_insert_before, panel); | |
| 221 } else { | |
| 222 panels_.push_back(panel); | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 RefreshLayout(); | |
| 227 | |
| 228 DiscardSavedPanelPlacement(); | |
| 229 } | |
| 230 | |
| 231 void DockedPanelCollection::DiscardSavedPanelPlacement() { | |
| 232 DCHECK(saved_panel_placement_.panel); | |
| 233 saved_panel_placement_.panel = NULL; | |
| 234 saved_panel_placement_.left_panel = NULL; | |
| 235 } | |
| 236 | |
| 237 panel::Resizability DockedPanelCollection::GetPanelResizability( | |
| 238 const Panel* panel) const { | |
| 239 return (panel->expansion_state() == Panel::EXPANDED) ? | |
| 240 panel::RESIZABLE_EXCEPT_BOTTOM : panel::NOT_RESIZABLE; | |
| 241 } | |
| 242 | |
| 243 void DockedPanelCollection::OnPanelResizedByMouse(Panel* panel, | |
| 244 const gfx::Rect& new_bounds) { | |
| 245 DCHECK_EQ(this, panel->collection()); | |
| 246 panel->set_full_size(new_bounds.size()); | |
| 247 } | |
| 248 | |
| 249 void DockedPanelCollection::OnPanelExpansionStateChanged(Panel* panel) { | |
| 250 gfx::Rect panel_bounds = panel->GetBounds(); | |
| 251 AdjustPanelBoundsPerExpansionState(panel, &panel_bounds); | |
| 252 panel->SetPanelBounds(panel_bounds); | |
| 253 | |
| 254 UpdateMinimizedPanelCount(); | |
| 255 | |
| 256 // Ensure minimized panel does not get the focus. If minimizing all, | |
| 257 // the active panel will be deactivated once when all panels are minimized | |
| 258 // rather than per minimized panel. | |
| 259 if (panel->expansion_state() != Panel::EXPANDED && !minimizing_all_ && | |
| 260 panel->IsActive()) { | |
| 261 panel->Deactivate(); | |
| 262 // The layout will refresh itself in response | |
| 263 // to (de)activation notification. | |
| 264 } | |
| 265 } | |
| 266 | |
| 267 void DockedPanelCollection::AdjustPanelBoundsPerExpansionState(Panel* panel, | |
| 268 gfx::Rect* bounds) { | |
| 269 Panel::ExpansionState expansion_state = panel->expansion_state(); | |
| 270 switch (expansion_state) { | |
| 271 case Panel::EXPANDED: | |
| 272 bounds->set_height(panel->full_size().height()); | |
| 273 | |
| 274 break; | |
| 275 case Panel::TITLE_ONLY: | |
| 276 bounds->set_height(panel->TitleOnlyHeight()); | |
| 277 | |
| 278 break; | |
| 279 case Panel::MINIMIZED: | |
| 280 bounds->set_height(panel::kMinimizedPanelHeight); | |
| 281 | |
| 282 break; | |
| 283 default: | |
| 284 NOTREACHED(); | |
| 285 break; | |
| 286 } | |
| 287 | |
| 288 int bottom = GetBottomPositionForExpansionState(expansion_state); | |
| 289 bounds->set_y(bottom - bounds->height()); | |
| 290 } | |
| 291 | |
| 292 void DockedPanelCollection::OnPanelAttentionStateChanged(Panel* panel) { | |
| 293 DCHECK_EQ(this, panel->collection()); | |
| 294 Panel::ExpansionState state = panel->expansion_state(); | |
| 295 if (panel->IsDrawingAttention()) { | |
| 296 // Bring up the titlebar to get user's attention. | |
| 297 if (state == Panel::MINIMIZED) | |
| 298 panel->SetExpansionState(Panel::TITLE_ONLY); | |
| 299 return; | |
| 300 } | |
| 301 | |
| 302 // Panel is no longer drawing attention, but leave the panel in | |
| 303 // title-only mode if all titlebars are currently up. | |
| 304 if (state != Panel::TITLE_ONLY || are_titlebars_up_) | |
| 305 return; | |
| 306 | |
| 307 // Leave titlebar up if panel is being dragged. | |
| 308 if (panel_manager_->drag_controller()->dragging_panel() == panel) | |
| 309 return; | |
| 310 | |
| 311 // Leave titlebar up if mouse is in/below the panel. | |
| 312 const gfx::Point mouse_position = | |
| 313 panel_manager_->mouse_watcher()->GetMousePosition(); | |
| 314 gfx::Rect bounds = panel->GetBounds(); | |
| 315 if (bounds.x() <= mouse_position.x() && | |
| 316 mouse_position.x() <= bounds.right() && | |
| 317 mouse_position.y() >= bounds.y()) | |
| 318 return; | |
| 319 | |
| 320 // Bring down the titlebar now that panel is not drawing attention. | |
| 321 panel->SetExpansionState(Panel::MINIMIZED); | |
| 322 } | |
| 323 | |
| 324 void DockedPanelCollection::OnPanelTitlebarClicked(Panel* panel, | |
| 325 panel::ClickModifier modifier) { | |
| 326 DCHECK_EQ(this, panel->collection()); | |
| 327 if (!IsPanelMinimized(panel)) | |
| 328 return; | |
| 329 | |
| 330 if (modifier == panel::APPLY_TO_ALL) | |
| 331 RestoreAll(); | |
| 332 else | |
| 333 RestorePanel(panel); | |
| 334 } | |
| 335 | |
| 336 void DockedPanelCollection::ActivatePanel(Panel* panel) { | |
| 337 DCHECK_EQ(this, panel->collection()); | |
| 338 | |
| 339 // Make sure the panel is expanded when activated so the user input | |
| 340 // does not go into a collapsed window. | |
| 341 panel->SetExpansionState(Panel::EXPANDED); | |
| 342 | |
| 343 // If the layout needs to be refreshed, it will happen in response to | |
| 344 // the activation notification (and with a slight delay to let things settle). | |
| 345 } | |
| 346 | |
| 347 void DockedPanelCollection::MinimizePanel(Panel* panel) { | |
| 348 DCHECK_EQ(this, panel->collection()); | |
| 349 | |
| 350 if (panel->expansion_state() != Panel::EXPANDED) | |
| 351 return; | |
| 352 | |
| 353 panel->SetExpansionState(panel->IsDrawingAttention() ? | |
| 354 Panel::TITLE_ONLY : Panel::MINIMIZED); | |
| 355 } | |
| 356 | |
| 357 void DockedPanelCollection::RestorePanel(Panel* panel) { | |
| 358 DCHECK_EQ(this, panel->collection()); | |
| 359 panel->SetExpansionState(Panel::EXPANDED); | |
| 360 } | |
| 361 | |
| 362 void DockedPanelCollection::MinimizeAll() { | |
| 363 // Set minimizing_all_ to prevent deactivation of each panel when it | |
| 364 // is minimized. See comments in OnPanelExpansionStateChanged. | |
| 365 base::AutoReset<bool> pin(&minimizing_all_, true); | |
| 366 Panel* minimized_active_panel = NULL; | |
| 367 for (Panels::const_iterator iter = panels_.begin(); | |
| 368 iter != panels_.end(); ++iter) { | |
| 369 if ((*iter)->IsActive()) | |
| 370 minimized_active_panel = *iter; | |
| 371 MinimizePanel(*iter); | |
| 372 } | |
| 373 | |
| 374 // When a single panel is minimized, it is deactivated to ensure that | |
| 375 // a minimized panel does not have focus. However, when minimizing all, | |
| 376 // the deactivation is only done once after all panels are minimized, | |
| 377 // rather than per minimized panel, both for efficiency and to avoid | |
| 378 // temporary activations of random not-yet-minimized panels. | |
| 379 if (minimized_active_panel) { | |
| 380 minimized_active_panel->Deactivate(); | |
| 381 // Layout will be refreshed in response to (de)activation notification. | |
| 382 } | |
| 383 } | |
| 384 | |
| 385 void DockedPanelCollection::RestoreAll() { | |
| 386 for (Panels::const_iterator iter = panels_.begin(); | |
| 387 iter != panels_.end(); ++iter) { | |
| 388 RestorePanel(*iter); | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 void DockedPanelCollection::OnMinimizeButtonClicked( | |
| 393 Panel* panel, panel::ClickModifier modifier) { | |
| 394 if (modifier == panel::APPLY_TO_ALL) | |
| 395 MinimizeAll(); | |
| 396 else | |
| 397 MinimizePanel(panel); | |
| 398 } | |
| 399 | |
| 400 void DockedPanelCollection::OnRestoreButtonClicked( | |
| 401 Panel* panel, panel::ClickModifier modifier) { | |
| 402 if (modifier == panel::APPLY_TO_ALL) | |
| 403 RestoreAll(); | |
| 404 else | |
| 405 RestorePanel(panel); | |
| 406 } | |
| 407 | |
| 408 bool DockedPanelCollection::CanShowMinimizeButton(const Panel* panel) const { | |
| 409 return !IsPanelMinimized(panel); | |
| 410 } | |
| 411 | |
| 412 bool DockedPanelCollection::CanShowRestoreButton(const Panel* panel) const { | |
| 413 return IsPanelMinimized(panel); | |
| 414 } | |
| 415 | |
| 416 bool DockedPanelCollection::IsPanelMinimized(const Panel* panel) const { | |
| 417 return panel->expansion_state() != Panel::EXPANDED; | |
| 418 } | |
| 419 | |
| 420 bool DockedPanelCollection::UsesAlwaysOnTopPanels() const { | |
| 421 return true; | |
| 422 } | |
| 423 | |
| 424 void DockedPanelCollection::UpdateMinimizedPanelCount() { | |
| 425 int prev_minimized_panel_count = minimized_panel_count_; | |
| 426 minimized_panel_count_ = 0; | |
| 427 for (Panels::const_iterator panel_iter = panels_.begin(); | |
| 428 panel_iter != panels_.end(); ++panel_iter) { | |
| 429 if ((*panel_iter)->expansion_state() != Panel::EXPANDED) | |
| 430 minimized_panel_count_++; | |
| 431 } | |
| 432 | |
| 433 if (prev_minimized_panel_count == 0 && minimized_panel_count_ > 0) | |
| 434 panel_manager_->mouse_watcher()->AddObserver(this); | |
| 435 else if (prev_minimized_panel_count > 0 && minimized_panel_count_ == 0) | |
| 436 panel_manager_->mouse_watcher()->RemoveObserver(this); | |
| 437 | |
| 438 DCHECK_LE(minimized_panel_count_, num_panels()); | |
| 439 } | |
| 440 | |
| 441 void DockedPanelCollection::ResizePanelWindow( | |
| 442 Panel* panel, | |
| 443 const gfx::Size& preferred_window_size) { | |
| 444 DCHECK_EQ(this, panel->collection()); | |
| 445 // Make sure the new size does not violate panel's size restrictions. | |
| 446 gfx::Size new_size(preferred_window_size.width(), | |
| 447 preferred_window_size.height()); | |
| 448 new_size = panel->ClampSize(new_size); | |
| 449 | |
| 450 if (new_size == panel->full_size()) | |
| 451 return; | |
| 452 | |
| 453 panel->set_full_size(new_size); | |
| 454 | |
| 455 RefreshLayout(); | |
| 456 } | |
| 457 | |
| 458 bool DockedPanelCollection::ShouldBringUpTitlebars(int mouse_x, | |
| 459 int mouse_y) const { | |
| 460 // We should always bring up the titlebar if the mouse is over the | |
| 461 // visible auto-hiding bottom bar. | |
| 462 DisplaySettingsProvider* provider = | |
| 463 panel_manager_->display_settings_provider(); | |
| 464 if (provider->IsAutoHidingDesktopBarEnabled( | |
| 465 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM) && | |
| 466 provider->GetDesktopBarVisibility( | |
| 467 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM) == | |
| 468 DisplaySettingsProvider::DESKTOP_BAR_VISIBLE) { | |
| 469 int bottom_bar_bottom = work_area_.bottom(); | |
| 470 int bottom_bar_y = bottom_bar_bottom - provider->GetDesktopBarThickness( | |
| 471 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM); | |
| 472 if (bottom_bar_y <= mouse_y && mouse_y <= bottom_bar_bottom) | |
| 473 return true; | |
| 474 } | |
| 475 | |
| 476 // Bring up titlebars if any panel needs the titlebar up. | |
| 477 Panel* dragging_panel = panel_manager_->drag_controller()->dragging_panel(); | |
| 478 if (dragging_panel && | |
| 479 dragging_panel->collection()->type() != PanelCollection::DOCKED) | |
| 480 dragging_panel = NULL; | |
| 481 for (Panels::const_iterator iter = panels_.begin(); | |
| 482 iter != panels_.end(); ++iter) { | |
| 483 Panel* panel = *iter; | |
| 484 Panel::ExpansionState state = panel->expansion_state(); | |
| 485 // Skip the expanded panel. | |
| 486 if (state == Panel::EXPANDED) | |
| 487 continue; | |
| 488 | |
| 489 // If the panel is showing titlebar only, we want to keep it up when it is | |
| 490 // being dragged. | |
| 491 if (state == Panel::TITLE_ONLY && panel == dragging_panel) | |
| 492 return true; | |
| 493 | |
| 494 // We do not want to bring up other minimized panels if the mouse is over | |
| 495 // the panel that pops up the titlebar to attract attention. | |
| 496 if (panel->IsDrawingAttention()) | |
| 497 continue; | |
| 498 | |
| 499 gfx::Rect bounds = panel->GetBounds(); | |
| 500 if (bounds.x() <= mouse_x && mouse_x <= bounds.right() && | |
| 501 mouse_y >= bounds.y()) | |
| 502 return true; | |
| 503 } | |
| 504 return false; | |
| 505 } | |
| 506 | |
| 507 void DockedPanelCollection::BringUpOrDownTitlebars(bool bring_up) { | |
| 508 if (are_titlebars_up_ == bring_up) | |
| 509 return; | |
| 510 | |
| 511 are_titlebars_up_ = bring_up; | |
| 512 int task_delay_ms = 0; | |
| 513 | |
| 514 // If the auto-hiding bottom bar exists, delay the action until the bottom | |
| 515 // bar is fully visible or hidden. We do not want both bottom bar and panel | |
| 516 // titlebar to move at the same time but with different speeds. | |
| 517 DisplaySettingsProvider* provider = | |
| 518 panel_manager_->display_settings_provider(); | |
| 519 if (provider->IsAutoHidingDesktopBarEnabled( | |
| 520 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM)) { | |
| 521 DisplaySettingsProvider::DesktopBarVisibility visibility = | |
| 522 provider->GetDesktopBarVisibility( | |
| 523 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM); | |
| 524 if (visibility != | |
| 525 (bring_up ? DisplaySettingsProvider::DESKTOP_BAR_VISIBLE | |
| 526 : DisplaySettingsProvider::DESKTOP_BAR_HIDDEN)) { | |
| 527 // Occasionally some system, like Windows, might not bring up or down the | |
| 528 // bottom bar when the mouse enters or leaves the bottom screen area. | |
| 529 // Thus, we schedule a delayed task to do the work if we do not receive | |
| 530 // the bottom bar visibility change notification within a certain period | |
| 531 // of time. | |
| 532 task_delay_ms = kMaxDelayWaitForBottomBarVisibilityChangeMs; | |
| 533 } | |
| 534 } | |
| 535 | |
| 536 // OnAutoHidingDesktopBarVisibilityChanged will handle this. | |
| 537 delayed_titlebar_action_ = bring_up ? BRING_UP : BRING_DOWN; | |
| 538 | |
| 539 // If user moves the mouse in and out of mouse tracking area, we might have | |
| 540 // previously posted but not yet dispatched task in the queue. New action | |
| 541 // should always 'reset' the delays so cancel any tasks that haven't run yet | |
| 542 // and post a new one. | |
| 543 titlebar_action_factory_.InvalidateWeakPtrs(); | |
| 544 base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( | |
| 545 FROM_HERE, | |
| 546 base::Bind(&DockedPanelCollection::DelayedBringUpOrDownTitlebarsCheck, | |
| 547 titlebar_action_factory_.GetWeakPtr()), | |
| 548 base::TimeDelta::FromMilliseconds( | |
| 549 PanelManager::AdjustTimeInterval(task_delay_ms))); | |
| 550 } | |
| 551 | |
| 552 void DockedPanelCollection::DelayedBringUpOrDownTitlebarsCheck() { | |
| 553 // Task was already processed or cancelled - bail out. | |
| 554 if (delayed_titlebar_action_ == NO_ACTION) | |
| 555 return; | |
| 556 | |
| 557 bool need_to_bring_up_titlebars = (delayed_titlebar_action_ == BRING_UP); | |
| 558 | |
| 559 delayed_titlebar_action_ = NO_ACTION; | |
| 560 | |
| 561 // Check if the action is still needed based on the latest mouse position. The | |
| 562 // user could move the mouse into the tracking area and then quickly move it | |
| 563 // out of the area. In case of this, cancel the action. | |
| 564 if (are_titlebars_up_ != need_to_bring_up_titlebars) | |
| 565 return; | |
| 566 | |
| 567 DoBringUpOrDownTitlebars(need_to_bring_up_titlebars); | |
| 568 } | |
| 569 | |
| 570 void DockedPanelCollection::DoBringUpOrDownTitlebars(bool bring_up) { | |
| 571 for (Panels::const_iterator iter = panels_.begin(); | |
| 572 iter != panels_.end(); ++iter) { | |
| 573 Panel* panel = *iter; | |
| 574 | |
| 575 // Skip any panel that is drawing the attention. | |
| 576 if (panel->IsDrawingAttention()) | |
| 577 continue; | |
| 578 | |
| 579 if (bring_up) { | |
| 580 if (panel->expansion_state() == Panel::MINIMIZED) | |
| 581 panel->SetExpansionState(Panel::TITLE_ONLY); | |
| 582 } else { | |
| 583 if (panel->expansion_state() == Panel::TITLE_ONLY) | |
| 584 panel->SetExpansionState(Panel::MINIMIZED); | |
| 585 } | |
| 586 } | |
| 587 } | |
| 588 | |
| 589 int DockedPanelCollection::GetBottomPositionForExpansionState( | |
| 590 Panel::ExpansionState expansion_state) const { | |
| 591 int bottom = work_area_.bottom(); | |
| 592 // If there is an auto-hiding desktop bar aligned to the bottom edge, we need | |
| 593 // to move the title-only panel above the auto-hiding desktop bar. | |
| 594 DisplaySettingsProvider* provider = | |
| 595 panel_manager_->display_settings_provider(); | |
| 596 if (expansion_state == Panel::TITLE_ONLY && | |
| 597 provider->IsAutoHidingDesktopBarEnabled( | |
| 598 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM)) { | |
| 599 bottom -= provider->GetDesktopBarThickness( | |
| 600 DisplaySettingsProvider::DESKTOP_BAR_ALIGNED_BOTTOM); | |
| 601 } | |
| 602 | |
| 603 return bottom; | |
| 604 } | |
| 605 | |
| 606 void DockedPanelCollection::OnMouseMove(const gfx::Point& mouse_position) { | |
| 607 bool bring_up_titlebars = ShouldBringUpTitlebars(mouse_position.x(), | |
| 608 mouse_position.y()); | |
| 609 BringUpOrDownTitlebars(bring_up_titlebars); | |
| 610 } | |
| 611 | |
| 612 void DockedPanelCollection::OnAutoHidingDesktopBarVisibilityChanged( | |
| 613 DisplaySettingsProvider::DesktopBarAlignment alignment, | |
| 614 DisplaySettingsProvider::DesktopBarVisibility visibility) { | |
| 615 if (delayed_titlebar_action_ == NO_ACTION) | |
| 616 return; | |
| 617 | |
| 618 DisplaySettingsProvider::DesktopBarVisibility expected_visibility = | |
| 619 delayed_titlebar_action_ == BRING_UP | |
| 620 ? DisplaySettingsProvider::DESKTOP_BAR_VISIBLE | |
| 621 : DisplaySettingsProvider::DESKTOP_BAR_HIDDEN; | |
| 622 if (visibility != expected_visibility) | |
| 623 return; | |
| 624 | |
| 625 DoBringUpOrDownTitlebars(delayed_titlebar_action_ == BRING_UP); | |
| 626 delayed_titlebar_action_ = NO_ACTION; | |
| 627 } | |
| 628 | |
| 629 void DockedPanelCollection::OnAutoHidingDesktopBarThicknessChanged( | |
| 630 DisplaySettingsProvider::DesktopBarAlignment alignment, int thickness) { | |
| 631 RefreshLayout(); | |
| 632 } | |
| 633 | |
| 634 void DockedPanelCollection::RefreshLayout() { | |
| 635 int total_active_width = 0; | |
| 636 int total_inactive_width = 0; | |
| 637 | |
| 638 for (Panels::const_iterator panel_iter = panels_.begin(); | |
| 639 panel_iter != panels_.end(); ++panel_iter) { | |
| 640 Panel* panel = *panel_iter; | |
| 641 if (panel->IsActive()) | |
| 642 total_active_width += panel->full_size().width(); | |
| 643 else | |
| 644 total_inactive_width += panel->full_size().width(); | |
| 645 } | |
| 646 | |
| 647 double display_width_for_inactive_panels = | |
| 648 work_area_.width() - total_active_width - | |
| 649 kPanelsHorizontalSpacing * panels_.size(); | |
| 650 double overflow_squeeze_factor = (total_inactive_width > 0) ? | |
| 651 std::min(display_width_for_inactive_panels / total_inactive_width, 1.0) : | |
| 652 1.0; | |
| 653 | |
| 654 // We want to calculate all bounds first, then apply them in a specific order. | |
| 655 typedef std::pair<Panel*, gfx::Rect> PanelBoundsInfo; | |
| 656 // The next pair of variables will hold panels that move, respectively, | |
| 657 // to the right and to the left. We want to process them from the center | |
| 658 // outwards, so one is a stack and another is a queue. | |
| 659 std::vector<PanelBoundsInfo> moving_right; | |
| 660 std::queue<PanelBoundsInfo> moving_left; | |
| 661 | |
| 662 int rightmost_position = StartingRightPosition(); | |
| 663 for (Panels::const_iterator panel_iter = panels_.begin(); | |
| 664 panel_iter != panels_.end(); ++panel_iter) { | |
| 665 Panel* panel = *panel_iter; | |
| 666 gfx::Rect old_bounds = panel->GetBounds(); | |
| 667 gfx::Rect new_bounds = old_bounds; | |
| 668 AdjustPanelBoundsPerExpansionState(panel, &new_bounds); | |
| 669 | |
| 670 new_bounds.set_width( | |
| 671 WidthToDisplayPanelInCollection(panel->IsActive(), | |
| 672 overflow_squeeze_factor, | |
| 673 panel->full_size().width())); | |
| 674 int x = rightmost_position - new_bounds.width(); | |
| 675 new_bounds.set_x(x); | |
| 676 | |
| 677 if (x < old_bounds.x() || | |
| 678 (x == old_bounds.x() && new_bounds.width() <= old_bounds.width())) | |
| 679 moving_left.push(std::make_pair(panel, new_bounds)); | |
| 680 else | |
| 681 moving_right.push_back(std::make_pair(panel, new_bounds)); | |
| 682 | |
| 683 rightmost_position = x - kPanelsHorizontalSpacing; | |
| 684 } | |
| 685 | |
| 686 // Update panels going in both directions. | |
| 687 // This is important on Mac where bounds changes are slow and you see a | |
| 688 // "wave" instead of a smooth sliding effect. | |
| 689 int num_animated = 0; | |
| 690 bool going_right = true; | |
| 691 while (!moving_right.empty() || !moving_left.empty()) { | |
| 692 PanelBoundsInfo bounds_info; | |
| 693 // Alternate between processing the panels that moving left and right, | |
| 694 // starting from the center. | |
| 695 going_right = !going_right; | |
| 696 bool take_panel_on_right = | |
| 697 (going_right && !moving_right.empty()) || | |
| 698 moving_left.empty(); | |
| 699 if (take_panel_on_right) { | |
| 700 bounds_info = moving_right.back(); | |
| 701 moving_right.pop_back(); | |
| 702 } else { | |
| 703 bounds_info = moving_left.front(); | |
| 704 moving_left.pop(); | |
| 705 } | |
| 706 | |
| 707 // Don't update the docked panel that is in preview mode. | |
| 708 Panel* panel = bounds_info.first; | |
| 709 gfx::Rect bounds = bounds_info.second; | |
| 710 if (!panel->in_preview_mode() && bounds != panel->GetBounds()) { | |
| 711 // We animate a limited number of panels, starting with the | |
| 712 // "most important" ones, that is, ones that are close to the center | |
| 713 // of the action. Other panels are moved instantly to improve performance. | |
| 714 if (num_animated < kNumPanelsToAnimateSimultaneously) { | |
| 715 panel->SetPanelBounds(bounds); // Animates. | |
| 716 ++num_animated; | |
| 717 } else { | |
| 718 panel->SetPanelBoundsInstantly(bounds); | |
| 719 } | |
| 720 } | |
| 721 } | |
| 722 | |
| 723 content::NotificationService::current()->Notify( | |
| 724 chrome::NOTIFICATION_PANEL_COLLECTION_UPDATED, | |
| 725 content::Source<PanelCollection>(this), | |
| 726 content::NotificationService::NoDetails()); | |
| 727 } | |
| 728 | |
| 729 int DockedPanelCollection::WidthToDisplayPanelInCollection( | |
| 730 bool is_for_active_panel, double squeeze_factor, int full_width) const { | |
| 731 return is_for_active_panel ? full_width : | |
| 732 std::max(panel::kPanelMinWidth, | |
| 733 static_cast<int>(floor(full_width * squeeze_factor))); | |
| 734 } | |
| 735 | |
| 736 void DockedPanelCollection::CloseAll() { | |
| 737 // This should only be called at the end of tests to clean up. | |
| 738 | |
| 739 // Make a copy of the iterator as closing panels can modify the vector. | |
| 740 Panels panels_copy = panels_; | |
| 741 | |
| 742 // Start from the bottom to avoid reshuffling. | |
| 743 for (Panels::reverse_iterator iter = panels_copy.rbegin(); | |
| 744 iter != panels_copy.rend(); ++iter) | |
| 745 (*iter)->Close(); | |
| 746 } | |
| 747 | |
| 748 void DockedPanelCollection::UpdatePanelOnCollectionChange(Panel* panel) { | |
| 749 panel->set_attention_mode(Panel::USE_PANEL_ATTENTION); | |
| 750 panel->ShowShadow(true); | |
| 751 panel->UpdateMinimizeRestoreButtonVisibility(); | |
| 752 panel->SetWindowCornerStyle(panel::TOP_ROUNDED); | |
| 753 } | |
| 754 | |
| 755 void DockedPanelCollection::ScheduleLayoutRefresh() { | |
| 756 refresh_action_factory_.InvalidateWeakPtrs(); | |
| 757 base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( | |
| 758 FROM_HERE, base::Bind(&DockedPanelCollection::RefreshLayout, | |
| 759 refresh_action_factory_.GetWeakPtr()), | |
| 760 base::TimeDelta::FromMilliseconds(PanelManager::AdjustTimeInterval( | |
| 761 kRefreshLayoutAfterActivePanelChangeDelayMs))); | |
| 762 } | |
| 763 | |
| 764 void DockedPanelCollection::OnPanelActiveStateChanged(Panel* panel) { | |
| 765 // Refresh layout, but wait till active states settle. | |
| 766 // This lets us avoid refreshing too many times when one panel loses | |
| 767 // focus and another gains it. | |
| 768 ScheduleLayoutRefresh(); | |
| 769 } | |
| 770 | |
| 771 gfx::Rect DockedPanelCollection::GetInitialPanelBounds( | |
| 772 const gfx::Rect& requested_bounds) const { | |
| 773 gfx::Rect initial_bounds = requested_bounds; | |
| 774 initial_bounds.set_origin( | |
| 775 GetDefaultPositionForPanel(requested_bounds.size())); | |
| 776 return initial_bounds; | |
| 777 } | |
| 778 | |
| 779 bool DockedPanelCollection::HasPanel(Panel* panel) const { | |
| 780 return find(panels_.begin(), panels_.end(), panel) != panels_.end(); | |
| 781 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2263863002:
Remove implementation of Panels on OSes other than ChromeOS. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master