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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 "ash/common/wm/workspace/workspace_layout_manager.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "ash/common/session/session_state_delegate.h" | |
| 10 #include "ash/common/shelf/wm_shelf.h" | |
| 11 #include "ash/common/wm/always_on_top_controller.h" | |
| 12 #include "ash/common/wm/fullscreen_window_finder.h" | |
| 13 #include "ash/common/wm/window_positioner.h" | |
| 14 #include "ash/common/wm/window_state.h" | |
| 15 #include "ash/common/wm/wm_event.h" | |
| 16 #include "ash/common/wm/wm_screen_util.h" | |
| 17 #include "ash/common/wm/workspace/workspace_layout_manager_backdrop_delegate.h" | |
| 18 #include "ash/common/wm_shell.h" | |
| 19 #include "ash/common/wm_window.h" | |
| 20 #include "ash/public/cpp/shell_window_ids.h" | |
| 21 #include "ash/root_window_controller.h" | |
| 22 #include "ash/wm/window_properties.h" | |
| 23 #include "ash/wm/window_state_aura.h" | |
| 24 #include "base/command_line.h" | |
| 25 #include "ui/aura/client/aura_constants.h" | |
| 26 #include "ui/base/ui_base_switches.h" | |
| 27 #include "ui/compositor/layer.h" | |
| 28 #include "ui/display/display.h" | |
| 29 #include "ui/display/screen.h" | |
| 30 #include "ui/keyboard/keyboard_controller.h" | |
| 31 #include "ui/keyboard/keyboard_controller_observer.h" | |
| 32 | |
| 33 namespace ash { | |
| 34 | |
| 35 WorkspaceLayoutManager::WorkspaceLayoutManager(WmWindow* window) | |
| 36 : window_(window), | |
| 37 root_window_(window->GetRootWindow()), | |
| 38 root_window_controller_(root_window_->GetRootWindowController()), | |
| 39 shell_(window_->GetShell()), | |
| 40 work_area_in_parent_(wm::GetDisplayWorkAreaBoundsInParent(window_)), | |
| 41 is_fullscreen_(wm::GetWindowForFullscreenMode(window) != nullptr) { | |
| 42 shell_->AddShellObserver(this); | |
| 43 shell_->AddActivationObserver(this); | |
| 44 root_window_->aura_window()->AddObserver(this); | |
| 45 display::Screen::GetScreen()->AddObserver(this); | |
| 46 DCHECK(window->aura_window()->GetProperty(kSnapChildrenToPixelBoundary)); | |
| 47 } | |
| 48 | |
| 49 WorkspaceLayoutManager::~WorkspaceLayoutManager() { | |
| 50 if (root_window_) | |
| 51 root_window_->aura_window()->RemoveObserver(this); | |
| 52 for (WmWindow* window : windows_) { | |
| 53 wm::WindowState* window_state = window->GetWindowState(); | |
| 54 window_state->RemoveObserver(this); | |
| 55 window->aura_window()->RemoveObserver(this); | |
| 56 } | |
| 57 display::Screen::GetScreen()->RemoveObserver(this); | |
| 58 shell_->RemoveActivationObserver(this); | |
| 59 shell_->RemoveShellObserver(this); | |
| 60 } | |
| 61 | |
| 62 void WorkspaceLayoutManager::SetMaximizeBackdropDelegate( | |
| 63 std::unique_ptr<WorkspaceLayoutManagerBackdropDelegate> delegate) { | |
| 64 backdrop_delegate_ = std::move(delegate); | |
| 65 } | |
| 66 | |
| 67 ////////////////////////////////////////////////////////////////////////////// | |
| 68 // WorkspaceLayoutManager, aura::LayoutManager implementation: | |
| 69 | |
| 70 void WorkspaceLayoutManager::OnWindowResized() {} | |
| 71 | |
| 72 void WorkspaceLayoutManager::OnWindowAddedToLayout(WmWindow* child) { | |
| 73 wm::WindowState* window_state = child->GetWindowState(); | |
| 74 wm::WMEvent event(wm::WM_EVENT_ADDED_TO_WORKSPACE); | |
| 75 window_state->OnWMEvent(&event); | |
| 76 windows_.insert(child); | |
| 77 child->aura_window()->AddObserver(this); | |
| 78 window_state->AddObserver(this); | |
| 79 UpdateShelfVisibility(); | |
| 80 UpdateFullscreenState(); | |
| 81 if (backdrop_delegate_) | |
| 82 backdrop_delegate_->OnWindowAddedToLayout(child); | |
| 83 WindowPositioner::RearrangeVisibleWindowOnShow(child); | |
| 84 if (WmShell::Get()->IsPinned()) | |
| 85 child->GetWindowState()->DisableAlwaysOnTop(nullptr); | |
| 86 } | |
| 87 | |
| 88 void WorkspaceLayoutManager::OnWillRemoveWindowFromLayout(WmWindow* child) { | |
| 89 windows_.erase(child); | |
| 90 child->aura_window()->RemoveObserver(this); | |
| 91 child->GetWindowState()->RemoveObserver(this); | |
| 92 | |
| 93 if (child->GetTargetVisibility()) | |
| 94 WindowPositioner::RearrangeVisibleWindowOnHideOrRemove(child); | |
| 95 } | |
| 96 | |
| 97 void WorkspaceLayoutManager::OnWindowRemovedFromLayout(WmWindow* child) { | |
| 98 UpdateShelfVisibility(); | |
| 99 UpdateFullscreenState(); | |
| 100 if (backdrop_delegate_) | |
| 101 backdrop_delegate_->OnWindowRemovedFromLayout(child); | |
| 102 } | |
| 103 | |
| 104 void WorkspaceLayoutManager::OnChildWindowVisibilityChanged(WmWindow* child, | |
| 105 bool visible) { | |
| 106 wm::WindowState* window_state = child->GetWindowState(); | |
| 107 // Attempting to show a minimized window. Unminimize it. | |
| 108 if (visible && window_state->IsMinimized()) | |
| 109 window_state->Unminimize(); | |
| 110 | |
| 111 if (child->GetTargetVisibility()) | |
| 112 WindowPositioner::RearrangeVisibleWindowOnShow(child); | |
| 113 else | |
| 114 WindowPositioner::RearrangeVisibleWindowOnHideOrRemove(child); | |
| 115 UpdateFullscreenState(); | |
| 116 UpdateShelfVisibility(); | |
| 117 if (backdrop_delegate_) | |
| 118 backdrop_delegate_->OnChildWindowVisibilityChanged(child, visible); | |
| 119 } | |
| 120 | |
| 121 void WorkspaceLayoutManager::SetChildBounds(WmWindow* child, | |
| 122 const gfx::Rect& requested_bounds) { | |
| 123 wm::SetBoundsEvent event(wm::WM_EVENT_SET_BOUNDS, requested_bounds); | |
| 124 child->GetWindowState()->OnWMEvent(&event); | |
| 125 UpdateShelfVisibility(); | |
| 126 } | |
| 127 | |
| 128 ////////////////////////////////////////////////////////////////////////////// | |
| 129 // WorkspaceLayoutManager, keyboard::KeyboardControllerObserver implementation: | |
| 130 | |
| 131 void WorkspaceLayoutManager::OnKeyboardBoundsChanging( | |
| 132 const gfx::Rect& new_bounds) { | |
| 133 // If new window behavior flag enabled and in non-sticky mode, do not change | |
| 134 // the work area. | |
| 135 bool change_work_area = | |
| 136 (!base::CommandLine::ForCurrentProcess()->HasSwitch( | |
| 137 ::switches::kUseNewVirtualKeyboardBehavior) || | |
| 138 keyboard::KeyboardController::GetInstance()->keyboard_locked()); | |
| 139 if (!change_work_area) | |
| 140 return; | |
| 141 | |
| 142 WmWindow* window = shell_->GetActiveWindow(); | |
| 143 if (!window) | |
| 144 return; | |
| 145 | |
| 146 window = window->GetToplevelWindow(); | |
| 147 if (!window_->Contains(window)) | |
| 148 return; | |
| 149 | |
| 150 wm::WindowState* window_state = window->GetWindowState(); | |
| 151 if (window_state->ignore_keyboard_bounds_change()) | |
| 152 return; | |
| 153 | |
| 154 if (!new_bounds.IsEmpty()) { | |
| 155 // Store existing bounds to be restored before resizing for keyboard if it | |
| 156 // is not already stored. | |
| 157 if (!window_state->HasRestoreBounds()) | |
| 158 window_state->SaveCurrentBoundsForRestore(); | |
| 159 | |
| 160 gfx::Rect window_bounds = | |
| 161 window_->ConvertRectToScreen(window->GetTargetBounds()); | |
| 162 int vertical_displacement = | |
| 163 std::max(0, window_bounds.bottom() - new_bounds.y()); | |
| 164 int shift = std::min(vertical_displacement, | |
| 165 window_bounds.y() - work_area_in_parent_.y()); | |
| 166 if (shift > 0) { | |
| 167 gfx::Point origin(window_bounds.x(), window_bounds.y() - shift); | |
| 168 SetChildBounds(window, gfx::Rect(origin, window_bounds.size())); | |
| 169 } | |
| 170 } else if (window_state->HasRestoreBounds()) { | |
| 171 // Keyboard hidden, restore original bounds if they exist. If the user has | |
| 172 // resized or dragged the window in the meantime, WorkspaceWindowResizer | |
| 173 // will have cleared the restore bounds and this code will not accidentally | |
| 174 // override user intent. | |
| 175 window_state->SetAndClearRestoreBounds(); | |
| 176 } | |
| 177 } | |
| 178 | |
| 179 void WorkspaceLayoutManager::OnKeyboardClosed() {} | |
| 180 | |
| 181 ////////////////////////////////////////////////////////////////////////////// | |
| 182 // WorkspaceLayoutManager, aura::WindowObserver implementation: | |
| 183 | |
| 184 void WorkspaceLayoutManager::OnWindowHierarchyChanged( | |
| 185 const HierarchyChangeParams& params) { | |
| 186 if (!wm::GetWindowState(params.target)->IsActive()) | |
| 187 return; | |
| 188 // If the window is already tracked by the workspace this update would be | |
| 189 // redundant as the fullscreen and shelf state would have been handled in | |
| 190 // OnWindowAddedToLayout. | |
| 191 if (windows_.find(WmWindow::Get(params.target)) != windows_.end()) | |
| 192 return; | |
| 193 | |
| 194 // If the active window has moved to this root window then update the | |
| 195 // fullscreen state. | |
| 196 // TODO(flackr): Track the active window leaving this root window and update | |
| 197 // the fullscreen state accordingly. | |
| 198 if (params.new_parent && | |
| 199 WmWindow::Get(params.new_parent->GetRootWindow()) == root_window_) { | |
| 200 UpdateFullscreenState(); | |
| 201 UpdateShelfVisibility(); | |
| 202 } | |
| 203 } | |
| 204 | |
| 205 void WorkspaceLayoutManager::OnWindowPropertyChanged(aura::Window* window, | |
| 206 const void* key, | |
| 207 intptr_t old) { | |
| 208 if (key == aura::client::kAlwaysOnTopKey && | |
| 209 window->GetProperty(aura::client::kAlwaysOnTopKey)) { | |
| 210 WmWindow* container = | |
| 211 root_window_controller_->always_on_top_controller()->GetContainer( | |
| 212 WmWindow::Get(window)); | |
| 213 if (WmWindow::Get(window->parent()) != container) | |
| 214 container->AddChild(WmWindow::Get(window)); | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 void WorkspaceLayoutManager::OnWindowStackingChanged(aura::Window* window) { | |
| 219 UpdateShelfVisibility(); | |
| 220 UpdateFullscreenState(); | |
| 221 if (backdrop_delegate_) | |
| 222 backdrop_delegate_->OnWindowStackingChanged(WmWindow::Get(window)); | |
| 223 } | |
| 224 | |
| 225 void WorkspaceLayoutManager::OnWindowDestroying(aura::Window* window) { | |
| 226 if (root_window_ == WmWindow::Get(window)) { | |
| 227 root_window_->aura_window()->RemoveObserver(this); | |
| 228 root_window_ = nullptr; | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 void WorkspaceLayoutManager::OnWindowBoundsChanged( | |
| 233 aura::Window* window, | |
| 234 const gfx::Rect& old_bounds, | |
| 235 const gfx::Rect& new_bounds) { | |
| 236 if (root_window_ == WmWindow::Get(window)) { | |
| 237 const wm::WMEvent wm_event(wm::WM_EVENT_DISPLAY_BOUNDS_CHANGED); | |
| 238 AdjustAllWindowsBoundsForWorkAreaChange(&wm_event); | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 ////////////////////////////////////////////////////////////////////////////// | |
| 243 // WorkspaceLayoutManager, | |
| 244 // aura::client::ActivationChangeObserver implementation: | |
| 245 | |
| 246 void WorkspaceLayoutManager::OnWindowActivated(WmWindow* gained_active, | |
| 247 WmWindow* lost_active) { | |
| 248 wm::WindowState* window_state = | |
| 249 gained_active ? gained_active->GetWindowState() : nullptr; | |
| 250 if (window_state && window_state->IsMinimized() && | |
| 251 !gained_active->IsVisible()) { | |
| 252 window_state->Unminimize(); | |
| 253 DCHECK(!window_state->IsMinimized()); | |
| 254 } | |
| 255 UpdateFullscreenState(); | |
| 256 UpdateShelfVisibility(); | |
| 257 } | |
| 258 | |
| 259 ////////////////////////////////////////////////////////////////////////////// | |
| 260 // WorkspaceLayoutManager, wm::WindowStateObserver implementation: | |
| 261 | |
| 262 void WorkspaceLayoutManager::OnPostWindowStateTypeChange( | |
| 263 wm::WindowState* window_state, | |
| 264 wm::WindowStateType old_type) { | |
| 265 // Notify observers that fullscreen state may be changing. | |
| 266 if (window_state->IsFullscreen() || | |
| 267 old_type == wm::WINDOW_STATE_TYPE_FULLSCREEN) { | |
| 268 UpdateFullscreenState(); | |
| 269 } | |
| 270 | |
| 271 UpdateShelfVisibility(); | |
| 272 if (backdrop_delegate_) | |
| 273 backdrop_delegate_->OnPostWindowStateTypeChange(window_state, old_type); | |
| 274 } | |
| 275 | |
| 276 ////////////////////////////////////////////////////////////////////////////// | |
| 277 // WorkspaceLayoutManager, display::DisplayObserver implementation: | |
| 278 | |
| 279 void WorkspaceLayoutManager::OnDisplayMetricsChanged( | |
| 280 const display::Display& display, | |
| 281 uint32_t changed_metrics) { | |
| 282 if (window_->GetDisplayNearestWindow().id() != display.id()) | |
| 283 return; | |
| 284 | |
| 285 const gfx::Rect work_area(wm::GetDisplayWorkAreaBoundsInParent(window_)); | |
| 286 if (work_area != work_area_in_parent_) { | |
| 287 const wm::WMEvent event(wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED); | |
| 288 AdjustAllWindowsBoundsForWorkAreaChange(&event); | |
| 289 } | |
| 290 if (backdrop_delegate_) | |
| 291 backdrop_delegate_->OnDisplayWorkAreaInsetsChanged(); | |
| 292 } | |
| 293 | |
| 294 ////////////////////////////////////////////////////////////////////////////// | |
| 295 // WorkspaceLayoutManager, ShellObserver implementation: | |
| 296 | |
| 297 void WorkspaceLayoutManager::OnFullscreenStateChanged(bool is_fullscreen, | |
| 298 WmWindow* root_window) { | |
| 299 if (root_window != root_window_ || is_fullscreen_ == is_fullscreen) | |
| 300 return; | |
| 301 | |
| 302 is_fullscreen_ = is_fullscreen; | |
| 303 if (WmShell::Get()->IsPinned()) { | |
| 304 // If this is in pinned mode, then this event does not trigger the | |
| 305 // always-on-top state change, because it is kept disabled regardless of | |
| 306 // the fullscreen state change. | |
| 307 return; | |
| 308 } | |
| 309 | |
| 310 UpdateAlwaysOnTop(is_fullscreen_ ? wm::GetWindowForFullscreenMode(window_) | |
| 311 : nullptr); | |
| 312 } | |
| 313 | |
| 314 void WorkspaceLayoutManager::OnPinnedStateChanged(WmWindow* pinned_window) { | |
| 315 if (!WmShell::Get()->IsPinned() && is_fullscreen_) { | |
| 316 // On exiting from pinned mode, if the workspace is still in fullscreen | |
| 317 // mode, then this event does not trigger the restoring yet. On exiting | |
| 318 // from fullscreen, the temporarily disabled always-on-top property will be | |
| 319 // restored. | |
| 320 return; | |
| 321 } | |
| 322 | |
| 323 UpdateAlwaysOnTop(WmShell::Get()->IsPinned() ? pinned_window : nullptr); | |
| 324 } | |
| 325 | |
| 326 ////////////////////////////////////////////////////////////////////////////// | |
| 327 // WorkspaceLayoutManager, private: | |
| 328 | |
| 329 void WorkspaceLayoutManager::AdjustAllWindowsBoundsForWorkAreaChange( | |
| 330 const wm::WMEvent* event) { | |
| 331 DCHECK(event->type() == wm::WM_EVENT_DISPLAY_BOUNDS_CHANGED || | |
| 332 event->type() == wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED); | |
| 333 | |
| 334 work_area_in_parent_ = wm::GetDisplayWorkAreaBoundsInParent(window_); | |
| 335 | |
| 336 // Don't do any adjustments of the insets while we are in screen locked mode. | |
| 337 // This would happen if the launcher was auto hidden before the login screen | |
| 338 // was shown and then gets shown when the login screen gets presented. | |
| 339 if (event->type() == wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED && | |
| 340 shell_->GetSessionStateDelegate()->IsScreenLocked()) | |
| 341 return; | |
| 342 | |
| 343 // If a user plugs an external display into a laptop running Aura the | |
| 344 // display size will change. Maximized windows need to resize to match. | |
| 345 // We also do this when developers running Aura on a desktop manually resize | |
| 346 // the host window. | |
| 347 // We also need to do this when the work area insets changes. | |
| 348 for (WmWindow* window : windows_) | |
| 349 window->GetWindowState()->OnWMEvent(event); | |
| 350 } | |
| 351 | |
| 352 void WorkspaceLayoutManager::UpdateShelfVisibility() { | |
| 353 if (root_window_controller_->HasShelf()) | |
| 354 root_window_controller_->GetShelf()->UpdateVisibilityState(); | |
| 355 } | |
| 356 | |
| 357 void WorkspaceLayoutManager::UpdateFullscreenState() { | |
| 358 // TODO(flackr): The fullscreen state is currently tracked per workspace | |
| 359 // but the shell notification implies a per root window state. Currently | |
| 360 // only windows in the default workspace container will go fullscreen but | |
| 361 // this should really be tracked by the RootWindowController since | |
| 362 // technically any container could get a fullscreen window. | |
| 363 if (window_->GetShellWindowId() != kShellWindowId_DefaultContainer) | |
| 364 return; | |
| 365 bool is_fullscreen = wm::GetWindowForFullscreenMode(window_) != nullptr; | |
| 366 if (is_fullscreen != is_fullscreen_) { | |
| 367 WmShell::Get()->NotifyFullscreenStateChanged(is_fullscreen, root_window_); | |
| 368 is_fullscreen_ = is_fullscreen; | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 void WorkspaceLayoutManager::UpdateAlwaysOnTop(WmWindow* window_on_top) { | |
| 373 // Changing always on top state may change window's parent. Iterate on a copy | |
| 374 // of |windows_| to avoid invalidating an iterator. Since both workspace and | |
| 375 // always_on_top containers' layouts are managed by this class all the | |
| 376 // appropriate windows will be included in the iteration. | |
| 377 WindowSet windows(windows_); | |
| 378 for (auto* window : windows) { | |
| 379 wm::WindowState* window_state = window->GetWindowState(); | |
| 380 if (window_on_top) | |
| 381 window_state->DisableAlwaysOnTop(window_on_top); | |
| 382 else | |
| 383 window_state->RestoreAlwaysOnTop(); | |
| 384 } | |
| 385 } | |
| 386 | |
| 387 } // namespace ash | |
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Chromium Code Reviews
Issue 2736573002:
chromeos: Move files in //ash/common to //ash, part 2 (Closed)
