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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_window_resizer.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <cmath> | |
| 9 #include <utility> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "ash/common/ash_switches.h" | |
| 13 #include "ash/common/metrics/user_metrics_action.h" | |
| 14 #include "ash/common/wm/default_window_resizer.h" | |
| 15 #include "ash/common/wm/dock/docked_window_layout_manager.h" | |
| 16 #include "ash/common/wm/dock/docked_window_resizer.h" | |
| 17 #include "ash/common/wm/panels/panel_window_resizer.h" | |
| 18 #include "ash/common/wm/window_positioning_utils.h" | |
| 19 #include "ash/common/wm/window_state.h" | |
| 20 #include "ash/common/wm/wm_event.h" | |
| 21 #include "ash/common/wm/wm_screen_util.h" | |
| 22 #include "ash/common/wm/workspace/phantom_window_controller.h" | |
| 23 #include "ash/common/wm/workspace/two_step_edge_cycler.h" | |
| 24 #include "ash/common/wm_shell.h" | |
| 25 #include "ash/common/wm_window.h" | |
| 26 #include "ash/public/cpp/shell_window_ids.h" | |
| 27 #include "ash/root_window_controller.h" | |
| 28 #include "ash/shell.h" | |
| 29 #include "base/memory/ptr_util.h" | |
| 30 #include "base/memory/weak_ptr.h" | |
| 31 #include "ui/base/hit_test.h" | |
| 32 #include "ui/compositor/layer.h" | |
| 33 #include "ui/display/display.h" | |
| 34 #include "ui/display/screen.h" | |
| 35 #include "ui/gfx/transform.h" | |
| 36 #include "ui/wm/public/window_types.h" | |
| 37 | |
| 38 namespace ash { | |
| 39 | |
| 40 std::unique_ptr<WindowResizer> CreateWindowResizer( | |
| 41 WmWindow* window, | |
| 42 const gfx::Point& point_in_parent, | |
| 43 int window_component, | |
| 44 aura::client::WindowMoveSource source) { | |
| 45 DCHECK(window); | |
| 46 wm::WindowState* window_state = window->GetWindowState(); | |
| 47 // No need to return a resizer when the window cannot get resized or when a | |
| 48 // resizer already exists for this window. | |
| 49 if ((!window_state->CanResize() && window_component != HTCAPTION) || | |
| 50 window_state->drag_details()) { | |
| 51 return nullptr; | |
| 52 } | |
| 53 | |
| 54 if (window_component == HTCAPTION && !window_state->can_be_dragged()) | |
| 55 return nullptr; | |
| 56 | |
| 57 // TODO(varkha): The chaining of window resizers causes some of the logic | |
| 58 // to be repeated and the logic flow difficult to control. With some windows | |
| 59 // classes using reparenting during drag operations it becomes challenging to | |
| 60 // implement proper transition from one resizer to another during or at the | |
| 61 // end of the drag. This also causes http://crbug.com/247085. | |
| 62 // It seems the only thing the panel or dock resizer needs to do is notify the | |
| 63 // layout manager when a docked window is being dragged. We should have a | |
| 64 // better way of doing this, perhaps by having a way of observing drags or | |
| 65 // having a generic drag window wrapper which informs a layout manager that a | |
| 66 // drag has started or stopped. | |
| 67 // It may be possible to refactor and eliminate chaining. | |
| 68 std::unique_ptr<WindowResizer> window_resizer; | |
| 69 | |
| 70 if (!window_state->IsNormalOrSnapped() && !window_state->IsDocked()) | |
| 71 return std::unique_ptr<WindowResizer>(); | |
| 72 | |
| 73 int bounds_change = | |
| 74 WindowResizer::GetBoundsChangeForWindowComponent(window_component); | |
| 75 if (bounds_change == WindowResizer::kBoundsChangeDirection_None) | |
| 76 return std::unique_ptr<WindowResizer>(); | |
| 77 | |
| 78 window_state->CreateDragDetails(point_in_parent, window_component, source); | |
| 79 const int parent_shell_window_id = | |
| 80 window->GetParent() ? window->GetParent()->GetShellWindowId() : -1; | |
| 81 if (window->GetParent() && | |
| 82 (parent_shell_window_id == kShellWindowId_DefaultContainer || | |
| 83 parent_shell_window_id == kShellWindowId_DockedContainer || | |
| 84 parent_shell_window_id == kShellWindowId_PanelContainer)) { | |
| 85 window_resizer.reset( | |
| 86 WorkspaceWindowResizer::Create(window_state, std::vector<WmWindow*>())); | |
| 87 } else { | |
| 88 window_resizer.reset(DefaultWindowResizer::Create(window_state)); | |
| 89 } | |
| 90 window_resizer = window->GetShell()->CreateDragWindowResizer( | |
| 91 std::move(window_resizer), window_state); | |
| 92 if (window->GetType() == ui::wm::WINDOW_TYPE_PANEL) | |
| 93 window_resizer.reset( | |
| 94 PanelWindowResizer::Create(window_resizer.release(), window_state)); | |
| 95 if (window_resizer && window->GetParent() && !window->GetTransientParent() && | |
| 96 (parent_shell_window_id == kShellWindowId_DefaultContainer || | |
| 97 parent_shell_window_id == kShellWindowId_DockedContainer || | |
| 98 parent_shell_window_id == kShellWindowId_PanelContainer)) { | |
| 99 window_resizer.reset( | |
| 100 DockedWindowResizer::Create(window_resizer.release(), window_state)); | |
| 101 } | |
| 102 return window_resizer; | |
| 103 } | |
| 104 | |
| 105 namespace { | |
| 106 | |
| 107 // Snapping distance used instead of WorkspaceWindowResizer::kScreenEdgeInset | |
| 108 // when resizing a window using touchscreen. | |
| 109 const int kScreenEdgeInsetForTouchDrag = 32; | |
| 110 | |
| 111 // Current instance for use by the WorkspaceWindowResizerTest. | |
| 112 WorkspaceWindowResizer* instance = NULL; | |
| 113 | |
| 114 // Returns true if the window should stick to the edge. | |
| 115 bool ShouldStickToEdge(int distance_from_edge, int sticky_size) { | |
| 116 return distance_from_edge < sticky_size && | |
| 117 distance_from_edge > -sticky_size * 2; | |
| 118 } | |
| 119 | |
| 120 // Returns the coordinate along the secondary axis to snap to. | |
| 121 int CoordinateAlongSecondaryAxis(SecondaryMagnetismEdge edge, | |
| 122 int leading, | |
| 123 int trailing, | |
| 124 int none) { | |
| 125 switch (edge) { | |
| 126 case SECONDARY_MAGNETISM_EDGE_LEADING: | |
| 127 return leading; | |
| 128 case SECONDARY_MAGNETISM_EDGE_TRAILING: | |
| 129 return trailing; | |
| 130 case SECONDARY_MAGNETISM_EDGE_NONE: | |
| 131 return none; | |
| 132 } | |
| 133 NOTREACHED(); | |
| 134 return none; | |
| 135 } | |
| 136 | |
| 137 // Returns the origin for |src| when magnetically attaching to |attach_to| along | |
| 138 // the edges |edges|. |edges| is a bitmask of the MagnetismEdges. | |
| 139 gfx::Point OriginForMagneticAttach(const gfx::Rect& src, | |
| 140 const gfx::Rect& attach_to, | |
| 141 const MatchedEdge& edge) { | |
| 142 int x = 0, y = 0; | |
| 143 switch (edge.primary_edge) { | |
| 144 case MAGNETISM_EDGE_TOP: | |
| 145 y = attach_to.bottom(); | |
| 146 break; | |
| 147 case MAGNETISM_EDGE_LEFT: | |
| 148 x = attach_to.right(); | |
| 149 break; | |
| 150 case MAGNETISM_EDGE_BOTTOM: | |
| 151 y = attach_to.y() - src.height(); | |
| 152 break; | |
| 153 case MAGNETISM_EDGE_RIGHT: | |
| 154 x = attach_to.x() - src.width(); | |
| 155 break; | |
| 156 } | |
| 157 switch (edge.primary_edge) { | |
| 158 case MAGNETISM_EDGE_TOP: | |
| 159 case MAGNETISM_EDGE_BOTTOM: | |
| 160 x = CoordinateAlongSecondaryAxis(edge.secondary_edge, attach_to.x(), | |
| 161 attach_to.right() - src.width(), | |
| 162 src.x()); | |
| 163 break; | |
| 164 case MAGNETISM_EDGE_LEFT: | |
| 165 case MAGNETISM_EDGE_RIGHT: | |
| 166 y = CoordinateAlongSecondaryAxis(edge.secondary_edge, attach_to.y(), | |
| 167 attach_to.bottom() - src.height(), | |
| 168 src.y()); | |
| 169 break; | |
| 170 } | |
| 171 return gfx::Point(x, y); | |
| 172 } | |
| 173 | |
| 174 // Returns the bounds for a magnetic attach when resizing. |src| is the bounds | |
| 175 // of window being resized, |attach_to| the bounds of the window to attach to | |
| 176 // and |edge| identifies the edge to attach to. | |
| 177 gfx::Rect BoundsForMagneticResizeAttach(const gfx::Rect& src, | |
| 178 const gfx::Rect& attach_to, | |
| 179 const MatchedEdge& edge) { | |
| 180 int x = src.x(); | |
| 181 int y = src.y(); | |
| 182 int w = src.width(); | |
| 183 int h = src.height(); | |
| 184 gfx::Point attach_origin(OriginForMagneticAttach(src, attach_to, edge)); | |
| 185 switch (edge.primary_edge) { | |
| 186 case MAGNETISM_EDGE_LEFT: | |
| 187 x = attach_origin.x(); | |
| 188 w = src.right() - x; | |
| 189 break; | |
| 190 case MAGNETISM_EDGE_RIGHT: | |
| 191 w += attach_origin.x() - src.x(); | |
| 192 break; | |
| 193 case MAGNETISM_EDGE_TOP: | |
| 194 y = attach_origin.y(); | |
| 195 h = src.bottom() - y; | |
| 196 break; | |
| 197 case MAGNETISM_EDGE_BOTTOM: | |
| 198 h += attach_origin.y() - src.y(); | |
| 199 break; | |
| 200 } | |
| 201 switch (edge.primary_edge) { | |
| 202 case MAGNETISM_EDGE_LEFT: | |
| 203 case MAGNETISM_EDGE_RIGHT: | |
| 204 if (edge.secondary_edge == SECONDARY_MAGNETISM_EDGE_LEADING) { | |
| 205 y = attach_origin.y(); | |
| 206 h = src.bottom() - y; | |
| 207 } else if (edge.secondary_edge == SECONDARY_MAGNETISM_EDGE_TRAILING) { | |
| 208 h += attach_origin.y() - src.y(); | |
| 209 } | |
| 210 break; | |
| 211 case MAGNETISM_EDGE_TOP: | |
| 212 case MAGNETISM_EDGE_BOTTOM: | |
| 213 if (edge.secondary_edge == SECONDARY_MAGNETISM_EDGE_LEADING) { | |
| 214 x = attach_origin.x(); | |
| 215 w = src.right() - x; | |
| 216 } else if (edge.secondary_edge == SECONDARY_MAGNETISM_EDGE_TRAILING) { | |
| 217 w += attach_origin.x() - src.x(); | |
| 218 } | |
| 219 break; | |
| 220 } | |
| 221 return gfx::Rect(x, y, w, h); | |
| 222 } | |
| 223 | |
| 224 // Converts a window component edge to the magnetic edge to snap to. | |
| 225 uint32_t WindowComponentToMagneticEdge(int window_component) { | |
| 226 switch (window_component) { | |
| 227 case HTTOPLEFT: | |
| 228 return MAGNETISM_EDGE_LEFT | MAGNETISM_EDGE_TOP; | |
| 229 case HTTOPRIGHT: | |
| 230 return MAGNETISM_EDGE_TOP | MAGNETISM_EDGE_RIGHT; | |
| 231 case HTBOTTOMLEFT: | |
| 232 return MAGNETISM_EDGE_LEFT | MAGNETISM_EDGE_BOTTOM; | |
| 233 case HTBOTTOMRIGHT: | |
| 234 return MAGNETISM_EDGE_RIGHT | MAGNETISM_EDGE_BOTTOM; | |
| 235 case HTTOP: | |
| 236 return MAGNETISM_EDGE_TOP; | |
| 237 case HTBOTTOM: | |
| 238 return MAGNETISM_EDGE_BOTTOM; | |
| 239 case HTRIGHT: | |
| 240 return MAGNETISM_EDGE_RIGHT; | |
| 241 case HTLEFT: | |
| 242 return MAGNETISM_EDGE_LEFT; | |
| 243 default: | |
| 244 break; | |
| 245 } | |
| 246 return 0; | |
| 247 } | |
| 248 | |
| 249 } // namespace | |
| 250 | |
| 251 // static | |
| 252 const int WorkspaceWindowResizer::kMinOnscreenSize = 20; | |
| 253 | |
| 254 // static | |
| 255 const int WorkspaceWindowResizer::kMinOnscreenHeight = 32; | |
| 256 | |
| 257 // static | |
| 258 const int WorkspaceWindowResizer::kScreenEdgeInset = 8; | |
| 259 | |
| 260 WorkspaceWindowResizer* WorkspaceWindowResizer::GetInstanceForTest() { | |
| 261 return instance; | |
| 262 } | |
| 263 | |
| 264 // Represents the width or height of a window with constraints on its minimum | |
| 265 // and maximum size. 0 represents a lack of a constraint. | |
| 266 class WindowSize { | |
| 267 public: | |
| 268 WindowSize(int size, int min, int max) : size_(size), min_(min), max_(max) { | |
| 269 // Grow the min/max bounds to include the starting size. | |
| 270 if (is_underflowing()) | |
| 271 min_ = size_; | |
| 272 if (is_overflowing()) | |
| 273 max_ = size_; | |
| 274 } | |
| 275 | |
| 276 bool is_at_capacity(bool shrinking) const { | |
| 277 return size_ == (shrinking ? min_ : max_); | |
| 278 } | |
| 279 | |
| 280 int size() const { return size_; } | |
| 281 | |
| 282 bool has_min() const { return min_ != 0; } | |
| 283 | |
| 284 bool has_max() const { return max_ != 0; } | |
| 285 | |
| 286 bool is_valid() const { return !is_overflowing() && !is_underflowing(); } | |
| 287 | |
| 288 bool is_overflowing() const { return has_max() && size_ > max_; } | |
| 289 | |
| 290 bool is_underflowing() const { return has_min() && size_ < min_; } | |
| 291 | |
| 292 // Add |amount| to this WindowSize not exceeding min or max size constraints. | |
| 293 // Returns by how much |size_| + |amount| exceeds the min/max constraints. | |
| 294 int Add(int amount) { | |
| 295 DCHECK(is_valid()); | |
| 296 int new_value = size_ + amount; | |
| 297 | |
| 298 if (has_min() && new_value < min_) { | |
| 299 size_ = min_; | |
| 300 return new_value - min_; | |
| 301 } | |
| 302 | |
| 303 if (has_max() && new_value > max_) { | |
| 304 size_ = max_; | |
| 305 return new_value - max_; | |
| 306 } | |
| 307 | |
| 308 size_ = new_value; | |
| 309 return 0; | |
| 310 } | |
| 311 | |
| 312 private: | |
| 313 int size_; | |
| 314 int min_; | |
| 315 int max_; | |
| 316 }; | |
| 317 | |
| 318 WorkspaceWindowResizer::~WorkspaceWindowResizer() { | |
| 319 if (did_lock_cursor_) | |
| 320 shell_->UnlockCursor(); | |
| 321 | |
| 322 if (instance == this) | |
| 323 instance = NULL; | |
| 324 } | |
| 325 | |
| 326 // static | |
| 327 WorkspaceWindowResizer* WorkspaceWindowResizer::Create( | |
| 328 wm::WindowState* window_state, | |
| 329 const std::vector<WmWindow*>& attached_windows) { | |
| 330 return new WorkspaceWindowResizer(window_state, attached_windows); | |
| 331 } | |
| 332 | |
| 333 void WorkspaceWindowResizer::Drag(const gfx::Point& location_in_parent, | |
| 334 int event_flags) { | |
| 335 last_mouse_location_ = location_in_parent; | |
| 336 | |
| 337 int sticky_size; | |
| 338 if (event_flags & ui::EF_CONTROL_DOWN) { | |
| 339 sticky_size = 0; | |
| 340 } else if ((details().bounds_change & kBoundsChange_Resizes) && | |
| 341 details().source == aura::client::WINDOW_MOVE_SOURCE_TOUCH) { | |
| 342 sticky_size = kScreenEdgeInsetForTouchDrag; | |
| 343 } else { | |
| 344 sticky_size = kScreenEdgeInset; | |
| 345 } | |
| 346 // |bounds| is in |GetTarget()->parent()|'s coordinates. | |
| 347 gfx::Rect bounds = CalculateBoundsForDrag(location_in_parent); | |
| 348 AdjustBoundsForMainWindow(sticky_size, &bounds); | |
| 349 | |
| 350 if (bounds != GetTarget()->GetBounds()) { | |
| 351 if (!did_move_or_resize_) { | |
| 352 if (!details().restore_bounds.IsEmpty()) | |
| 353 window_state()->ClearRestoreBounds(); | |
| 354 RestackWindows(); | |
| 355 } | |
| 356 did_move_or_resize_ = true; | |
| 357 } | |
| 358 | |
| 359 gfx::Point location_in_screen = | |
| 360 GetTarget()->GetParent()->ConvertPointToScreen(location_in_parent); | |
| 361 | |
| 362 WmWindow* root = nullptr; | |
| 363 display::Display display = | |
| 364 display::Screen::GetScreen()->GetDisplayNearestPoint(location_in_screen); | |
| 365 // Track the last screen that the pointer was on to keep the snap phantom | |
| 366 // window there. | |
| 367 if (display.bounds().Contains(location_in_screen)) { | |
| 368 root = | |
| 369 Shell::GetRootWindowControllerWithDisplayId(display.id())->GetWindow(); | |
| 370 } | |
| 371 if (!attached_windows_.empty()) | |
| 372 LayoutAttachedWindows(&bounds); | |
| 373 if (bounds != GetTarget()->GetBounds()) { | |
| 374 // SetBounds needs to be called to update the layout which affects where the | |
| 375 // phantom window is drawn. Keep track if the window was destroyed during | |
| 376 // the drag and quit early if so. | |
| 377 base::WeakPtr<WorkspaceWindowResizer> resizer( | |
| 378 weak_ptr_factory_.GetWeakPtr()); | |
| 379 GetTarget()->SetBounds(bounds); | |
| 380 if (!resizer) | |
| 381 return; | |
| 382 } | |
| 383 const bool in_original_root = !root || root == GetTarget()->GetRootWindow(); | |
| 384 // Hide a phantom window for snapping if the cursor is in another root window. | |
| 385 if (in_original_root) { | |
| 386 UpdateSnapPhantomWindow(location_in_parent, bounds); | |
| 387 } else { | |
| 388 snap_type_ = SNAP_NONE; | |
| 389 snap_phantom_window_controller_.reset(); | |
| 390 edge_cycler_.reset(); | |
| 391 SetDraggedWindowDocked(false); | |
| 392 } | |
| 393 } | |
| 394 | |
| 395 void WorkspaceWindowResizer::CompleteDrag() { | |
| 396 if (!did_move_or_resize_) | |
| 397 return; | |
| 398 | |
| 399 window_state()->set_bounds_changed_by_user(true); | |
| 400 snap_phantom_window_controller_.reset(); | |
| 401 | |
| 402 // If the window's state type changed over the course of the drag do not snap | |
| 403 // the window. This happens when the user minimizes or maximizes the window | |
| 404 // using a keyboard shortcut while dragging it. | |
| 405 if (window_state()->GetStateType() != details().initial_state_type) | |
| 406 return; | |
| 407 | |
| 408 bool snapped = false; | |
| 409 if (snap_type_ == SNAP_LEFT || snap_type_ == SNAP_RIGHT) { | |
| 410 if (!window_state()->HasRestoreBounds()) { | |
| 411 gfx::Rect initial_bounds = GetTarget()->GetParent()->ConvertRectToScreen( | |
| 412 details().initial_bounds_in_parent); | |
| 413 window_state()->SetRestoreBoundsInScreen( | |
| 414 details().restore_bounds.IsEmpty() ? initial_bounds | |
| 415 : details().restore_bounds); | |
| 416 } | |
| 417 if (!dock_layout_->is_dragged_window_docked()) { | |
| 418 // TODO(oshima): Add event source type to WMEvent and move | |
| 419 // metrics recording inside WindowState::OnWMEvent. | |
| 420 const wm::WMEvent event(snap_type_ == SNAP_LEFT | |
| 421 ? wm::WM_EVENT_SNAP_LEFT | |
| 422 : wm::WM_EVENT_SNAP_RIGHT); | |
| 423 window_state()->OnWMEvent(&event); | |
| 424 shell_->RecordUserMetricsAction(snap_type_ == SNAP_LEFT | |
| 425 ? UMA_DRAG_MAXIMIZE_LEFT | |
| 426 : UMA_DRAG_MAXIMIZE_RIGHT); | |
| 427 snapped = true; | |
| 428 } | |
| 429 } | |
| 430 | |
| 431 if (!snapped) { | |
| 432 if (window_state()->IsSnapped()) { | |
| 433 // Keep the window snapped if the user resizes the window such that the | |
| 434 // window has valid bounds for a snapped window. Always unsnap the window | |
| 435 // if the user dragged the window via the caption area because doing this | |
| 436 // is slightly less confusing. | |
| 437 if (details().window_component == HTCAPTION || | |
| 438 !AreBoundsValidSnappedBounds(window_state()->GetStateType(), | |
| 439 GetTarget()->GetBounds())) { | |
| 440 // Set the window to WINDOW_STATE_TYPE_NORMAL but keep the | |
| 441 // window at the bounds that the user has moved/resized the | |
| 442 // window to. | |
| 443 window_state()->SaveCurrentBoundsForRestore(); | |
| 444 window_state()->Restore(); | |
| 445 } | |
| 446 } else if (!dock_layout_->is_dragged_window_docked()) { | |
| 447 // The window was not snapped and is not snapped. This is a user | |
| 448 // resize/drag and so the current bounds should be maintained, clearing | |
| 449 // any prior restore bounds. When the window is docked the restore bound | |
| 450 // must be kept so the docked state can be reverted properly. | |
| 451 window_state()->ClearRestoreBounds(); | |
| 452 } | |
| 453 } | |
| 454 } | |
| 455 | |
| 456 void WorkspaceWindowResizer::RevertDrag() { | |
| 457 window_state()->set_bounds_changed_by_user(initial_bounds_changed_by_user_); | |
| 458 snap_phantom_window_controller_.reset(); | |
| 459 | |
| 460 if (!did_move_or_resize_) | |
| 461 return; | |
| 462 | |
| 463 GetTarget()->SetBounds(details().initial_bounds_in_parent); | |
| 464 if (!details().restore_bounds.IsEmpty()) | |
| 465 window_state()->SetRestoreBoundsInScreen(details().restore_bounds); | |
| 466 | |
| 467 if (details().window_component == HTRIGHT) { | |
| 468 int last_x = details().initial_bounds_in_parent.right(); | |
| 469 for (size_t i = 0; i < attached_windows_.size(); ++i) { | |
| 470 gfx::Rect bounds(attached_windows_[i]->GetBounds()); | |
| 471 bounds.set_x(last_x); | |
| 472 bounds.set_width(initial_size_[i]); | |
| 473 attached_windows_[i]->SetBounds(bounds); | |
| 474 last_x = attached_windows_[i]->GetBounds().right(); | |
| 475 } | |
| 476 } else { | |
| 477 int last_y = details().initial_bounds_in_parent.bottom(); | |
| 478 for (size_t i = 0; i < attached_windows_.size(); ++i) { | |
| 479 gfx::Rect bounds(attached_windows_[i]->GetBounds()); | |
| 480 bounds.set_y(last_y); | |
| 481 bounds.set_height(initial_size_[i]); | |
| 482 attached_windows_[i]->SetBounds(bounds); | |
| 483 last_y = attached_windows_[i]->GetBounds().bottom(); | |
| 484 } | |
| 485 } | |
| 486 } | |
| 487 | |
| 488 WorkspaceWindowResizer::WorkspaceWindowResizer( | |
| 489 wm::WindowState* window_state, | |
| 490 const std::vector<WmWindow*>& attached_windows) | |
| 491 : WindowResizer(window_state), | |
| 492 attached_windows_(attached_windows), | |
| 493 shell_(window_state->window()->GetShell()), | |
| 494 did_lock_cursor_(false), | |
| 495 did_move_or_resize_(false), | |
| 496 initial_bounds_changed_by_user_(window_state_->bounds_changed_by_user()), | |
| 497 total_min_(0), | |
| 498 total_initial_size_(0), | |
| 499 snap_type_(SNAP_NONE), | |
| 500 num_mouse_moves_since_bounds_change_(0), | |
| 501 magnetism_window_(NULL), | |
| 502 weak_ptr_factory_(this) { | |
| 503 DCHECK(details().is_resizable); | |
| 504 | |
| 505 // A mousemove should still show the cursor even if the window is | |
| 506 // being moved or resized with touch, so do not lock the cursor. | |
| 507 if (details().source != aura::client::WINDOW_MOVE_SOURCE_TOUCH) { | |
| 508 shell_->LockCursor(); | |
| 509 did_lock_cursor_ = true; | |
| 510 } | |
| 511 | |
| 512 dock_layout_ = DockedWindowLayoutManager::Get(GetTarget()); | |
| 513 | |
| 514 // Only support attaching to the right/bottom. | |
| 515 DCHECK(attached_windows_.empty() || (details().window_component == HTRIGHT || | |
| 516 details().window_component == HTBOTTOM)); | |
| 517 | |
| 518 // TODO: figure out how to deal with window going off the edge. | |
| 519 | |
| 520 // Calculate sizes so that we can maintain the ratios if we need to resize. | |
| 521 int total_available = 0; | |
| 522 for (size_t i = 0; i < attached_windows_.size(); ++i) { | |
| 523 gfx::Size min(attached_windows_[i]->GetMinimumSize()); | |
| 524 int initial_size = | |
| 525 PrimaryAxisSize(attached_windows_[i]->GetBounds().size()); | |
| 526 initial_size_.push_back(initial_size); | |
| 527 // If current size is smaller than the min, use the current size as the min. | |
| 528 // This way we don't snap on resize. | |
| 529 int min_size = std::min(initial_size, | |
| 530 std::max(PrimaryAxisSize(min), kMinOnscreenSize)); | |
| 531 total_min_ += min_size; | |
| 532 total_initial_size_ += initial_size; | |
| 533 total_available += std::max(min_size, initial_size) - min_size; | |
| 534 } | |
| 535 instance = this; | |
| 536 } | |
| 537 | |
| 538 void WorkspaceWindowResizer::LayoutAttachedWindows(gfx::Rect* bounds) { | |
| 539 gfx::Rect work_area(wm::GetDisplayWorkAreaBoundsInParent(GetTarget())); | |
| 540 int initial_size = PrimaryAxisSize(details().initial_bounds_in_parent.size()); | |
| 541 int current_size = PrimaryAxisSize(bounds->size()); | |
| 542 int start = PrimaryAxisCoordinate(bounds->right(), bounds->bottom()); | |
| 543 int end = PrimaryAxisCoordinate(work_area.right(), work_area.bottom()); | |
| 544 | |
| 545 int delta = current_size - initial_size; | |
| 546 int available_size = end - start; | |
| 547 std::vector<int> sizes; | |
| 548 int leftovers = CalculateAttachedSizes(delta, available_size, &sizes); | |
| 549 | |
| 550 // leftovers > 0 means that the attached windows can't grow to compensate for | |
| 551 // the shrinkage of the main window. This line causes the attached windows to | |
| 552 // be moved so they are still flush against the main window, rather than the | |
| 553 // main window being prevented from shrinking. | |
| 554 leftovers = std::min(0, leftovers); | |
| 555 // Reallocate any leftover pixels back into the main window. This is | |
| 556 // necessary when, for example, the main window shrinks, but none of the | |
| 557 // attached windows can grow without exceeding their max size constraints. | |
| 558 // Adding the pixels back to the main window effectively prevents the main | |
| 559 // window from resizing too far. | |
| 560 if (details().window_component == HTRIGHT) | |
| 561 bounds->set_width(bounds->width() + leftovers); | |
| 562 else | |
| 563 bounds->set_height(bounds->height() + leftovers); | |
| 564 | |
| 565 DCHECK_EQ(attached_windows_.size(), sizes.size()); | |
| 566 int last = PrimaryAxisCoordinate(bounds->right(), bounds->bottom()); | |
| 567 for (size_t i = 0; i < attached_windows_.size(); ++i) { | |
| 568 gfx::Rect attached_bounds(attached_windows_[i]->GetBounds()); | |
| 569 if (details().window_component == HTRIGHT) { | |
| 570 attached_bounds.set_x(last); | |
| 571 attached_bounds.set_width(sizes[i]); | |
| 572 } else { | |
| 573 attached_bounds.set_y(last); | |
| 574 attached_bounds.set_height(sizes[i]); | |
| 575 } | |
| 576 attached_windows_[i]->SetBounds(attached_bounds); | |
| 577 last += sizes[i]; | |
| 578 } | |
| 579 } | |
| 580 | |
| 581 int WorkspaceWindowResizer::CalculateAttachedSizes( | |
| 582 int delta, | |
| 583 int available_size, | |
| 584 std::vector<int>* sizes) const { | |
| 585 std::vector<WindowSize> window_sizes; | |
| 586 CreateBucketsForAttached(&window_sizes); | |
| 587 | |
| 588 // How much we need to grow the attached by (collectively). | |
| 589 int grow_attached_by = 0; | |
| 590 if (delta > 0) { | |
| 591 // If the attached windows don't fit when at their initial size, we will | |
| 592 // have to shrink them by how much they overflow. | |
| 593 if (total_initial_size_ >= available_size) | |
| 594 grow_attached_by = available_size - total_initial_size_; | |
| 595 } else { | |
| 596 // If we're shrinking, we grow the attached so the total size remains | |
| 597 // constant. | |
| 598 grow_attached_by = -delta; | |
| 599 } | |
| 600 | |
| 601 int leftover_pixels = 0; | |
| 602 while (grow_attached_by != 0) { | |
| 603 int leftovers = GrowFairly(grow_attached_by, &window_sizes); | |
| 604 if (leftovers == grow_attached_by) { | |
| 605 leftover_pixels = leftovers; | |
| 606 break; | |
| 607 } | |
| 608 grow_attached_by = leftovers; | |
| 609 } | |
| 610 | |
| 611 for (size_t i = 0; i < window_sizes.size(); ++i) | |
| 612 sizes->push_back(window_sizes[i].size()); | |
| 613 | |
| 614 return leftover_pixels; | |
| 615 } | |
| 616 | |
| 617 int WorkspaceWindowResizer::GrowFairly(int pixels, | |
| 618 std::vector<WindowSize>* sizes) const { | |
| 619 bool shrinking = pixels < 0; | |
| 620 std::vector<WindowSize*> nonfull_windows; | |
| 621 for (size_t i = 0; i < sizes->size(); ++i) { | |
| 622 WindowSize& current_window_size = (*sizes)[i]; | |
| 623 if (!current_window_size.is_at_capacity(shrinking)) | |
| 624 nonfull_windows.push_back(¤t_window_size); | |
| 625 } | |
| 626 std::vector<float> ratios; | |
| 627 CalculateGrowthRatios(nonfull_windows, &ratios); | |
| 628 | |
| 629 int remaining_pixels = pixels; | |
| 630 bool add_leftover_pixels_to_last = true; | |
| 631 for (size_t i = 0; i < nonfull_windows.size(); ++i) { | |
| 632 int grow_by = pixels * ratios[i]; | |
| 633 // Put any leftover pixels into the last window. | |
| 634 if (i == nonfull_windows.size() - 1 && add_leftover_pixels_to_last) | |
| 635 grow_by = remaining_pixels; | |
| 636 int remainder = nonfull_windows[i]->Add(grow_by); | |
| 637 int consumed = grow_by - remainder; | |
| 638 remaining_pixels -= consumed; | |
| 639 if (nonfull_windows[i]->is_at_capacity(shrinking) && remainder > 0) { | |
| 640 // Because this window overflowed, some of the pixels in | |
| 641 // |remaining_pixels| aren't there due to rounding errors. Rather than | |
| 642 // unfairly giving all those pixels to the last window, we refrain from | |
| 643 // allocating them so that this function can be called again to distribute | |
| 644 // the pixels fairly. | |
| 645 add_leftover_pixels_to_last = false; | |
| 646 } | |
| 647 } | |
| 648 return remaining_pixels; | |
| 649 } | |
| 650 | |
| 651 void WorkspaceWindowResizer::CalculateGrowthRatios( | |
| 652 const std::vector<WindowSize*>& sizes, | |
| 653 std::vector<float>* out_ratios) const { | |
| 654 DCHECK(out_ratios->empty()); | |
| 655 int total_value = 0; | |
| 656 for (size_t i = 0; i < sizes.size(); ++i) | |
| 657 total_value += sizes[i]->size(); | |
| 658 | |
| 659 for (size_t i = 0; i < sizes.size(); ++i) | |
| 660 out_ratios->push_back((static_cast<float>(sizes[i]->size())) / total_value); | |
| 661 } | |
| 662 | |
| 663 void WorkspaceWindowResizer::CreateBucketsForAttached( | |
| 664 std::vector<WindowSize>* sizes) const { | |
| 665 for (size_t i = 0; i < attached_windows_.size(); i++) { | |
| 666 int initial_size = initial_size_[i]; | |
| 667 int min = PrimaryAxisSize(attached_windows_[i]->GetMinimumSize()); | |
| 668 int max = PrimaryAxisSize(attached_windows_[i]->GetMaximumSize()); | |
| 669 | |
| 670 sizes->push_back(WindowSize(initial_size, min, max)); | |
| 671 } | |
| 672 } | |
| 673 | |
| 674 void WorkspaceWindowResizer::MagneticallySnapToOtherWindows(gfx::Rect* bounds) { | |
| 675 if (UpdateMagnetismWindow(*bounds, kAllMagnetismEdges)) { | |
| 676 gfx::Point point = OriginForMagneticAttach( | |
| 677 GetTarget()->GetParent()->ConvertRectToScreen(*bounds), | |
| 678 magnetism_window_->GetBoundsInScreen(), magnetism_edge_); | |
| 679 point = GetTarget()->GetParent()->ConvertPointFromScreen(point); | |
| 680 bounds->set_origin(point); | |
| 681 } | |
| 682 } | |
| 683 | |
| 684 void WorkspaceWindowResizer::MagneticallySnapResizeToOtherWindows( | |
| 685 gfx::Rect* bounds) { | |
| 686 const uint32_t edges = | |
| 687 WindowComponentToMagneticEdge(details().window_component); | |
| 688 if (UpdateMagnetismWindow(*bounds, edges)) { | |
| 689 *bounds = GetTarget()->GetParent()->ConvertRectFromScreen( | |
| 690 BoundsForMagneticResizeAttach( | |
| 691 GetTarget()->GetParent()->ConvertRectToScreen(*bounds), | |
| 692 magnetism_window_->GetBoundsInScreen(), magnetism_edge_)); | |
| 693 } | |
| 694 } | |
| 695 | |
| 696 bool WorkspaceWindowResizer::UpdateMagnetismWindow(const gfx::Rect& bounds, | |
| 697 uint32_t edges) { | |
| 698 // |bounds| are in coordinates of original window's parent. | |
| 699 gfx::Rect bounds_in_screen = | |
| 700 GetTarget()->GetParent()->ConvertRectToScreen(bounds); | |
| 701 MagnetismMatcher matcher(bounds_in_screen, edges); | |
| 702 | |
| 703 // If we snapped to a window then check it first. That way we don't bounce | |
| 704 // around when close to multiple edges. | |
| 705 if (magnetism_window_) { | |
| 706 if (window_tracker_.Contains(magnetism_window_->aura_window()) && | |
| 707 matcher.ShouldAttach(magnetism_window_->GetBoundsInScreen(), | |
| 708 &magnetism_edge_)) { | |
| 709 return true; | |
| 710 } | |
| 711 window_tracker_.Remove(magnetism_window_->aura_window()); | |
| 712 magnetism_window_ = NULL; | |
| 713 } | |
| 714 | |
| 715 // Avoid magnetically snapping windows that are not resizable. | |
| 716 // TODO(oshima): change this to window.type() == TYPE_NORMAL. | |
| 717 if (!window_state()->CanResize()) | |
| 718 return false; | |
| 719 | |
| 720 for (WmWindow* root_window : shell_->GetAllRootWindows()) { | |
| 721 // Test all children from the desktop in each root window. | |
| 722 const std::vector<WmWindow*> children = | |
| 723 root_window->GetChildByShellWindowId(kShellWindowId_DefaultContainer) | |
| 724 ->GetChildren(); | |
| 725 for (auto i = children.rbegin(); | |
| 726 i != children.rend() && !matcher.AreEdgesObscured(); ++i) { | |
| 727 wm::WindowState* other_state = (*i)->GetWindowState(); | |
| 728 if (other_state->window() == GetTarget() || | |
| 729 !other_state->window()->IsVisible() || | |
| 730 !other_state->IsNormalOrSnapped() || !other_state->CanResize()) { | |
| 731 continue; | |
| 732 } | |
| 733 if (matcher.ShouldAttach(other_state->window()->GetBoundsInScreen(), | |
| 734 &magnetism_edge_)) { | |
| 735 magnetism_window_ = other_state->window(); | |
| 736 window_tracker_.Add(magnetism_window_->aura_window()); | |
| 737 return true; | |
| 738 } | |
| 739 } | |
| 740 } | |
| 741 return false; | |
| 742 } | |
| 743 | |
| 744 void WorkspaceWindowResizer::AdjustBoundsForMainWindow(int sticky_size, | |
| 745 gfx::Rect* bounds) { | |
| 746 gfx::Point last_mouse_location_in_screen = | |
| 747 GetTarget()->GetParent()->ConvertPointToScreen(last_mouse_location_); | |
| 748 display::Display display = | |
| 749 display::Screen::GetScreen()->GetDisplayNearestPoint( | |
| 750 last_mouse_location_in_screen); | |
| 751 gfx::Rect work_area = | |
| 752 GetTarget()->GetParent()->ConvertRectFromScreen(display.work_area()); | |
| 753 if (details().window_component == HTCAPTION) { | |
| 754 // Adjust the bounds to the work area where the mouse cursor is located. | |
| 755 // Always keep kMinOnscreenHeight or the window height (whichever is less) | |
| 756 // on the bottom. | |
| 757 int max_y = | |
| 758 work_area.bottom() - std::min(kMinOnscreenHeight, bounds->height()); | |
| 759 if (bounds->y() > max_y) { | |
| 760 bounds->set_y(max_y); | |
| 761 } else if (bounds->y() <= work_area.y()) { | |
| 762 // Don't allow dragging above the top of the display until the mouse | |
| 763 // cursor reaches the work area above if any. | |
| 764 bounds->set_y(work_area.y()); | |
| 765 } | |
| 766 | |
| 767 if (sticky_size > 0) { | |
| 768 // Possibly stick to edge except when a mouse pointer is outside the | |
| 769 // work area. | |
| 770 if (display.work_area().Contains(last_mouse_location_in_screen)) | |
| 771 StickToWorkAreaOnMove(work_area, sticky_size, bounds); | |
| 772 MagneticallySnapToOtherWindows(bounds); | |
| 773 } | |
| 774 } else if (sticky_size > 0) { | |
| 775 MagneticallySnapResizeToOtherWindows(bounds); | |
| 776 if (!magnetism_window_ && sticky_size > 0) | |
| 777 StickToWorkAreaOnResize(work_area, sticky_size, bounds); | |
| 778 } | |
| 779 | |
| 780 if (attached_windows_.empty()) | |
| 781 return; | |
| 782 | |
| 783 if (details().window_component == HTRIGHT) { | |
| 784 bounds->set_width(std::min(bounds->width(), | |
| 785 work_area.right() - total_min_ - bounds->x())); | |
| 786 } else { | |
| 787 DCHECK_EQ(HTBOTTOM, details().window_component); | |
| 788 bounds->set_height(std::min(bounds->height(), | |
| 789 work_area.bottom() - total_min_ - bounds->y())); | |
| 790 } | |
| 791 } | |
| 792 | |
| 793 bool WorkspaceWindowResizer::StickToWorkAreaOnMove(const gfx::Rect& work_area, | |
| 794 int sticky_size, | |
| 795 gfx::Rect* bounds) const { | |
| 796 const int left_edge = work_area.x(); | |
| 797 const int right_edge = work_area.right(); | |
| 798 const int top_edge = work_area.y(); | |
| 799 const int bottom_edge = work_area.bottom(); | |
| 800 bool updated = false; | |
| 801 if (ShouldStickToEdge(bounds->x() - left_edge, sticky_size)) { | |
| 802 bounds->set_x(left_edge); | |
| 803 updated = true; | |
| 804 } else if (ShouldStickToEdge(right_edge - bounds->right(), sticky_size)) { | |
| 805 bounds->set_x(right_edge - bounds->width()); | |
| 806 updated = true; | |
| 807 } | |
| 808 if (ShouldStickToEdge(bounds->y() - top_edge, sticky_size)) { | |
| 809 bounds->set_y(top_edge); | |
| 810 updated = true; | |
| 811 } else if (ShouldStickToEdge(bottom_edge - bounds->bottom(), sticky_size) && | |
| 812 bounds->height() < (bottom_edge - top_edge)) { | |
| 813 // Only snap to the bottom if the window is smaller than the work area. | |
| 814 // Doing otherwise can lead to window snapping in weird ways as it bounces | |
| 815 // between snapping to top then bottom. | |
| 816 bounds->set_y(bottom_edge - bounds->height()); | |
| 817 updated = true; | |
| 818 } | |
| 819 return updated; | |
| 820 } | |
| 821 | |
| 822 void WorkspaceWindowResizer::StickToWorkAreaOnResize(const gfx::Rect& work_area, | |
| 823 int sticky_size, | |
| 824 gfx::Rect* bounds) const { | |
| 825 const uint32_t edges = | |
| 826 WindowComponentToMagneticEdge(details().window_component); | |
| 827 const int left_edge = work_area.x(); | |
| 828 const int right_edge = work_area.right(); | |
| 829 const int top_edge = work_area.y(); | |
| 830 const int bottom_edge = work_area.bottom(); | |
| 831 if (edges & MAGNETISM_EDGE_TOP && | |
| 832 ShouldStickToEdge(bounds->y() - top_edge, sticky_size)) { | |
| 833 bounds->set_height(bounds->bottom() - top_edge); | |
| 834 bounds->set_y(top_edge); | |
| 835 } | |
| 836 if (edges & MAGNETISM_EDGE_LEFT && | |
| 837 ShouldStickToEdge(bounds->x() - left_edge, sticky_size)) { | |
| 838 bounds->set_width(bounds->right() - left_edge); | |
| 839 bounds->set_x(left_edge); | |
| 840 } | |
| 841 if (edges & MAGNETISM_EDGE_BOTTOM && | |
| 842 ShouldStickToEdge(bottom_edge - bounds->bottom(), sticky_size)) { | |
| 843 bounds->set_height(bottom_edge - bounds->y()); | |
| 844 } | |
| 845 if (edges & MAGNETISM_EDGE_RIGHT && | |
| 846 ShouldStickToEdge(right_edge - bounds->right(), sticky_size)) { | |
| 847 bounds->set_width(right_edge - bounds->x()); | |
| 848 } | |
| 849 } | |
| 850 | |
| 851 int WorkspaceWindowResizer::PrimaryAxisSize(const gfx::Size& size) const { | |
| 852 return PrimaryAxisCoordinate(size.width(), size.height()); | |
| 853 } | |
| 854 | |
| 855 int WorkspaceWindowResizer::PrimaryAxisCoordinate(int x, int y) const { | |
| 856 switch (details().window_component) { | |
| 857 case HTRIGHT: | |
| 858 return x; | |
| 859 case HTBOTTOM: | |
| 860 return y; | |
| 861 default: | |
| 862 NOTREACHED(); | |
| 863 } | |
| 864 return 0; | |
| 865 } | |
| 866 | |
| 867 void WorkspaceWindowResizer::UpdateSnapPhantomWindow(const gfx::Point& location, | |
| 868 const gfx::Rect& bounds) { | |
| 869 if (!did_move_or_resize_ || details().window_component != HTCAPTION) | |
| 870 return; | |
| 871 | |
| 872 SnapType last_type = snap_type_; | |
| 873 snap_type_ = GetSnapType(location); | |
| 874 if (snap_type_ == SNAP_NONE || snap_type_ != last_type) { | |
| 875 snap_phantom_window_controller_.reset(); | |
| 876 edge_cycler_.reset(); | |
| 877 if (snap_type_ == SNAP_NONE) { | |
| 878 SetDraggedWindowDocked(false); | |
| 879 return; | |
| 880 } | |
| 881 } | |
| 882 | |
| 883 DCHECK(snap_type_ == SNAP_LEFT || snap_type_ == SNAP_RIGHT); | |
| 884 DockedAlignment desired_alignment = (snap_type_ == SNAP_LEFT) | |
| 885 ? DOCKED_ALIGNMENT_LEFT | |
| 886 : DOCKED_ALIGNMENT_RIGHT; | |
| 887 const bool can_dock = | |
| 888 ash::switches::DockedWindowsEnabled() && | |
| 889 dock_layout_->CanDockWindow(GetTarget(), desired_alignment) && | |
| 890 dock_layout_->GetAlignmentOfWindow(GetTarget()) != DOCKED_ALIGNMENT_NONE; | |
| 891 if (!can_dock) { | |
| 892 // If the window cannot be docked, undock the window. This may change the | |
| 893 // workspace bounds and hence |snap_type_|. | |
| 894 SetDraggedWindowDocked(false); | |
| 895 snap_type_ = GetSnapType(location); | |
| 896 } | |
| 897 const bool can_snap = snap_type_ != SNAP_NONE && window_state()->CanSnap(); | |
| 898 if (!can_snap && !can_dock) { | |
| 899 snap_type_ = SNAP_NONE; | |
| 900 snap_phantom_window_controller_.reset(); | |
| 901 edge_cycler_.reset(); | |
| 902 return; | |
| 903 } | |
| 904 if (!edge_cycler_) { | |
| 905 edge_cycler_.reset(new TwoStepEdgeCycler( | |
| 906 location, snap_type_ == SNAP_LEFT | |
| 907 ? TwoStepEdgeCycler::DIRECTION_LEFT | |
| 908 : TwoStepEdgeCycler::DIRECTION_RIGHT)); | |
| 909 } else { | |
| 910 edge_cycler_->OnMove(location); | |
| 911 } | |
| 912 | |
| 913 // Update phantom window with snapped or docked guide bounds. | |
| 914 // Windows that cannot be snapped or are less wide than kMaxDockWidth can get | |
| 915 // docked without going through a snapping sequence. | |
| 916 gfx::Rect phantom_bounds; | |
| 917 const bool should_dock = | |
| 918 can_dock && (!can_snap || | |
| 919 GetTarget()->GetBounds().width() <= | |
| 920 DockedWindowLayoutManager::kMaxDockWidth || | |
| 921 edge_cycler_->use_second_mode() || | |
| 922 dock_layout_->is_dragged_window_docked()); | |
| 923 if (should_dock) { | |
| 924 SetDraggedWindowDocked(true); | |
| 925 phantom_bounds = GetTarget()->GetParent()->ConvertRectFromScreen( | |
| 926 dock_layout_->dragged_bounds()); | |
| 927 } else { | |
| 928 phantom_bounds = | |
| 929 (snap_type_ == SNAP_LEFT) | |
| 930 ? wm::GetDefaultLeftSnappedWindowBoundsInParent(GetTarget()) | |
| 931 : wm::GetDefaultRightSnappedWindowBoundsInParent(GetTarget()); | |
| 932 } | |
| 933 | |
| 934 if (!snap_phantom_window_controller_) { | |
| 935 snap_phantom_window_controller_.reset( | |
| 936 new PhantomWindowController(GetTarget())); | |
| 937 } | |
| 938 snap_phantom_window_controller_->Show( | |
| 939 GetTarget()->GetParent()->ConvertRectToScreen(phantom_bounds)); | |
| 940 } | |
| 941 | |
| 942 void WorkspaceWindowResizer::RestackWindows() { | |
| 943 if (attached_windows_.empty()) | |
| 944 return; | |
| 945 // Build a map from index in children to window, returning if there is a | |
| 946 // window with a different parent. | |
| 947 using IndexToWindowMap = std::map<size_t, WmWindow*>; | |
| 948 IndexToWindowMap map; | |
| 949 WmWindow* parent = GetTarget()->GetParent(); | |
| 950 const std::vector<WmWindow*> windows(parent->GetChildren()); | |
| 951 map[std::find(windows.begin(), windows.end(), GetTarget()) - | |
| 952 windows.begin()] = GetTarget(); | |
| 953 for (auto i = attached_windows_.begin(); i != attached_windows_.end(); ++i) { | |
| 954 if ((*i)->GetParent() != parent) | |
| 955 return; | |
| 956 size_t index = | |
| 957 std::find(windows.begin(), windows.end(), *i) - windows.begin(); | |
| 958 map[index] = *i; | |
| 959 } | |
| 960 | |
| 961 // Reorder the windows starting at the topmost. | |
| 962 parent->StackChildAtTop(map.rbegin()->second); | |
| 963 for (auto i = map.rbegin(); i != map.rend();) { | |
| 964 WmWindow* window = i->second; | |
| 965 ++i; | |
| 966 if (i != map.rend()) | |
| 967 parent->StackChildBelow(i->second, window); | |
| 968 } | |
| 969 } | |
| 970 | |
| 971 WorkspaceWindowResizer::SnapType WorkspaceWindowResizer::GetSnapType( | |
| 972 const gfx::Point& location) const { | |
| 973 // TODO: this likely only wants total display area, not the area of a single | |
| 974 // display. | |
| 975 gfx::Rect area(wm::GetDisplayWorkAreaBoundsInParent(GetTarget())); | |
| 976 if (details().source == aura::client::WINDOW_MOVE_SOURCE_TOUCH) { | |
| 977 // Increase tolerance for touch-snapping near the screen edges. This is only | |
| 978 // necessary when the work area left or right edge is same as screen edge. | |
| 979 gfx::Rect display_bounds(wm::GetDisplayBoundsInParent(GetTarget())); | |
| 980 int inset_left = 0; | |
| 981 if (area.x() == display_bounds.x()) | |
| 982 inset_left = kScreenEdgeInsetForTouchDrag; | |
| 983 int inset_right = 0; | |
| 984 if (area.right() == display_bounds.right()) | |
| 985 inset_right = kScreenEdgeInsetForTouchDrag; | |
| 986 area.Inset(inset_left, 0, inset_right, 0); | |
| 987 } | |
| 988 if (location.x() <= area.x()) | |
| 989 return SNAP_LEFT; | |
| 990 if (location.x() >= area.right() - 1) | |
| 991 return SNAP_RIGHT; | |
| 992 return SNAP_NONE; | |
| 993 } | |
| 994 | |
| 995 void WorkspaceWindowResizer::SetDraggedWindowDocked(bool should_dock) { | |
| 996 if (should_dock) { | |
| 997 if (!dock_layout_->is_dragged_window_docked()) { | |
| 998 window_state()->set_bounds_changed_by_user(false); | |
| 999 dock_layout_->DockDraggedWindow(GetTarget()); | |
| 1000 } | |
| 1001 } else { | |
| 1002 if (dock_layout_->is_dragged_window_docked()) { | |
| 1003 dock_layout_->UndockDraggedWindow(); | |
| 1004 window_state()->set_bounds_changed_by_user(true); | |
| 1005 } | |
| 1006 } | |
| 1007 } | |
| 1008 | |
| 1009 bool WorkspaceWindowResizer::AreBoundsValidSnappedBounds( | |
| 1010 wm::WindowStateType snapped_type, | |
| 1011 const gfx::Rect& bounds_in_parent) const { | |
| 1012 DCHECK(snapped_type == wm::WINDOW_STATE_TYPE_LEFT_SNAPPED || | |
| 1013 snapped_type == wm::WINDOW_STATE_TYPE_RIGHT_SNAPPED); | |
| 1014 gfx::Rect snapped_bounds = wm::GetDisplayWorkAreaBoundsInParent(GetTarget()); | |
| 1015 if (snapped_type == wm::WINDOW_STATE_TYPE_RIGHT_SNAPPED) | |
| 1016 snapped_bounds.set_x(snapped_bounds.right() - bounds_in_parent.width()); | |
| 1017 snapped_bounds.set_width(bounds_in_parent.width()); | |
| 1018 return bounds_in_parent == snapped_bounds; | |
| 1019 } | |
| 1020 | |
| 1021 } // namespace ash | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2736573002:
chromeos: Move files in //ash/common to //ash, part 2 (Closed)
