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| 1 // Copyright 2016 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/window_positioning_utils.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "ash/common/wm/system_modal_container_layout_manager.h" | |
| 10 #include "ash/common/wm/window_state.h" | |
| 11 #include "ash/common/wm/wm_event.h" | |
| 12 #include "ash/common/wm/wm_screen_util.h" | |
| 13 #include "ash/common/wm_shell.h" | |
| 14 #include "ash/common/wm_window.h" | |
| 15 #include "ash/root_window_controller.h" | |
| 16 #include "ash/shell.h" | |
| 17 #include "ui/aura/window_tracker.h" | |
| 18 #include "ui/display/display.h" | |
| 19 #include "ui/display/types/display_constants.h" | |
| 20 #include "ui/gfx/geometry/rect.h" | |
| 21 #include "ui/gfx/geometry/size.h" | |
| 22 | |
| 23 namespace ash { | |
| 24 namespace wm { | |
| 25 | |
| 26 namespace { | |
| 27 | |
| 28 // Returns the default width of a snapped window. | |
| 29 int GetDefaultSnappedWindowWidth(WmWindow* window) { | |
| 30 const float kSnappedWidthWorkspaceRatio = 0.5f; | |
| 31 | |
| 32 int work_area_width = GetDisplayWorkAreaBoundsInParent(window).width(); | |
| 33 int min_width = window->GetMinimumSize().width(); | |
| 34 int ideal_width = | |
| 35 static_cast<int>(work_area_width * kSnappedWidthWorkspaceRatio); | |
| 36 return std::min(work_area_width, std::max(ideal_width, min_width)); | |
| 37 } | |
| 38 | |
| 39 // Return true if the window or one of its ancestor returns true from | |
| 40 // IsLockedToRoot(). | |
| 41 bool IsWindowOrAncestorLockedToRoot(const WmWindow* window) { | |
| 42 return window && (window->IsLockedToRoot() || | |
| 43 IsWindowOrAncestorLockedToRoot(window->GetParent())); | |
| 44 } | |
| 45 | |
| 46 // Move all transient children to |dst_root|, including the ones in | |
| 47 // the child windows and transient children of the transient children. | |
| 48 void MoveAllTransientChildrenToNewRoot(const display::Display& display, | |
| 49 WmWindow* window) { | |
| 50 WmWindow* dst_root = | |
| 51 Shell::GetRootWindowControllerWithDisplayId(display.id())->GetWindow(); | |
| 52 for (WmWindow* transient_child : window->GetTransientChildren()) { | |
| 53 const int container_id = transient_child->GetParent()->GetShellWindowId(); | |
| 54 DCHECK_GE(container_id, 0); | |
| 55 WmWindow* container = dst_root->GetChildByShellWindowId(container_id); | |
| 56 const gfx::Rect transient_child_bounds_in_screen = | |
| 57 transient_child->GetBoundsInScreen(); | |
| 58 container->AddChild(transient_child); | |
| 59 transient_child->SetBoundsInScreen(transient_child_bounds_in_screen, | |
| 60 display); | |
| 61 | |
| 62 // Transient children may have transient children. | |
| 63 MoveAllTransientChildrenToNewRoot(display, transient_child); | |
| 64 } | |
| 65 // Move transient children of the child windows if any. | |
| 66 for (WmWindow* child : window->GetChildren()) | |
| 67 MoveAllTransientChildrenToNewRoot(display, child); | |
| 68 } | |
| 69 | |
| 70 } // namespace | |
| 71 | |
| 72 void AdjustBoundsSmallerThan(const gfx::Size& max_size, gfx::Rect* bounds) { | |
| 73 bounds->set_width(std::min(bounds->width(), max_size.width())); | |
| 74 bounds->set_height(std::min(bounds->height(), max_size.height())); | |
| 75 } | |
| 76 | |
| 77 void AdjustBoundsToEnsureWindowVisibility(const gfx::Rect& visible_area, | |
| 78 int min_width, | |
| 79 int min_height, | |
| 80 gfx::Rect* bounds) { | |
| 81 AdjustBoundsSmallerThan(visible_area.size(), bounds); | |
| 82 | |
| 83 min_width = std::min(min_width, visible_area.width()); | |
| 84 min_height = std::min(min_height, visible_area.height()); | |
| 85 | |
| 86 if (bounds->right() < visible_area.x() + min_width) { | |
| 87 bounds->set_x(visible_area.x() + std::min(bounds->width(), min_width) - | |
| 88 bounds->width()); | |
| 89 } else if (bounds->x() > visible_area.right() - min_width) { | |
| 90 bounds->set_x(visible_area.right() - std::min(bounds->width(), min_width)); | |
| 91 } | |
| 92 if (bounds->bottom() < visible_area.y() + min_height) { | |
| 93 bounds->set_y(visible_area.y() + std::min(bounds->height(), min_height) - | |
| 94 bounds->height()); | |
| 95 } else if (bounds->y() > visible_area.bottom() - min_height) { | |
| 96 bounds->set_y(visible_area.bottom() - | |
| 97 std::min(bounds->height(), min_height)); | |
| 98 } | |
| 99 if (bounds->y() < visible_area.y()) | |
| 100 bounds->set_y(visible_area.y()); | |
| 101 } | |
| 102 | |
| 103 void AdjustBoundsToEnsureMinimumWindowVisibility(const gfx::Rect& visible_area, | |
| 104 gfx::Rect* bounds) { | |
| 105 AdjustBoundsToEnsureWindowVisibility(visible_area, kMinimumOnScreenArea, | |
| 106 kMinimumOnScreenArea, bounds); | |
| 107 } | |
| 108 | |
| 109 gfx::Rect GetDefaultLeftSnappedWindowBoundsInParent(WmWindow* window) { | |
| 110 gfx::Rect work_area_in_parent(GetDisplayWorkAreaBoundsInParent(window)); | |
| 111 return gfx::Rect(work_area_in_parent.x(), work_area_in_parent.y(), | |
| 112 GetDefaultSnappedWindowWidth(window), | |
| 113 work_area_in_parent.height()); | |
| 114 } | |
| 115 | |
| 116 gfx::Rect GetDefaultRightSnappedWindowBoundsInParent(WmWindow* window) { | |
| 117 gfx::Rect work_area_in_parent(GetDisplayWorkAreaBoundsInParent(window)); | |
| 118 int width = GetDefaultSnappedWindowWidth(window); | |
| 119 return gfx::Rect(work_area_in_parent.right() - width, work_area_in_parent.y(), | |
| 120 width, work_area_in_parent.height()); | |
| 121 } | |
| 122 | |
| 123 void CenterWindow(WmWindow* window) { | |
| 124 WMEvent event(WM_EVENT_CENTER); | |
| 125 window->GetWindowState()->OnWMEvent(&event); | |
| 126 } | |
| 127 | |
| 128 void SetBoundsInScreen(WmWindow* window, | |
| 129 const gfx::Rect& bounds_in_screen, | |
| 130 const display::Display& display) { | |
| 131 DCHECK_NE(display::kInvalidDisplayId, display.id()); | |
| 132 // Don't move a window to other root window if: | |
| 133 // a) the window is a transient window. It moves when its | |
| 134 // transient parent moves. | |
| 135 // b) if the window or its ancestor has IsLockedToRoot(). It's intentionally | |
| 136 // kept in the same root window even if the bounds is outside of the | |
| 137 // display. | |
| 138 if (!window->GetTransientParent() && | |
| 139 !IsWindowOrAncestorLockedToRoot(window)) { | |
| 140 RootWindowController* dst_root_window_controller = | |
| 141 Shell::GetRootWindowControllerWithDisplayId(display.id()); | |
| 142 DCHECK(dst_root_window_controller); | |
| 143 WmWindow* dst_root = dst_root_window_controller->GetWindow(); | |
| 144 DCHECK(dst_root); | |
| 145 WmWindow* dst_container = nullptr; | |
| 146 if (dst_root != window->GetRootWindow()) { | |
| 147 int container_id = window->GetParent()->GetShellWindowId(); | |
| 148 // All containers that uses screen coordinates must have valid window ids. | |
| 149 DCHECK_GE(container_id, 0); | |
| 150 // Don't move modal background. | |
| 151 if (!SystemModalContainerLayoutManager::IsModalBackground(window)) | |
| 152 dst_container = dst_root->GetChildByShellWindowId(container_id); | |
| 153 } | |
| 154 | |
| 155 if (dst_container && window->GetParent() != dst_container) { | |
| 156 WmWindow* focused = WmShell::Get()->GetFocusedWindow(); | |
| 157 WmWindow* active = WmShell::Get()->GetActiveWindow(); | |
| 158 | |
| 159 aura::WindowTracker tracker; | |
| 160 if (focused) | |
| 161 tracker.Add(focused->aura_window()); | |
| 162 if (active && focused != active) | |
| 163 tracker.Add(active->aura_window()); | |
| 164 | |
| 165 gfx::Point origin = bounds_in_screen.origin(); | |
| 166 const gfx::Point display_origin = display.bounds().origin(); | |
| 167 origin.Offset(-display_origin.x(), -display_origin.y()); | |
| 168 gfx::Rect new_bounds = gfx::Rect(origin, bounds_in_screen.size()); | |
| 169 | |
| 170 // Set new bounds now so that the container's layout manager can adjust | |
| 171 // the bounds if necessary. | |
| 172 window->SetBounds(new_bounds); | |
| 173 | |
| 174 dst_container->AddChild(window); | |
| 175 | |
| 176 MoveAllTransientChildrenToNewRoot(display, window); | |
| 177 | |
| 178 // Restore focused/active window. | |
| 179 if (focused && tracker.Contains(focused->aura_window())) { | |
| 180 focused->SetFocused(); | |
| 181 WmShell::Get()->set_root_window_for_new_windows( | |
| 182 focused->GetRootWindow()); | |
| 183 } else if (active && tracker.Contains(active->aura_window())) { | |
| 184 active->Activate(); | |
| 185 } | |
| 186 // TODO(oshima): We should not have to update the bounds again | |
| 187 // below in theory, but we currently do need as there is a code | |
| 188 // that assumes that the bounds will never be overridden by the | |
| 189 // layout mananger. We should have more explicit control how | |
| 190 // constraints are applied by the layout manager. | |
| 191 } | |
| 192 } | |
| 193 gfx::Point origin(bounds_in_screen.origin()); | |
| 194 const gfx::Point display_origin = | |
| 195 window->GetDisplayNearestWindow().bounds().origin(); | |
| 196 origin.Offset(-display_origin.x(), -display_origin.y()); | |
| 197 window->SetBounds(gfx::Rect(origin, bounds_in_screen.size())); | |
| 198 } | |
| 199 | |
| 200 } // namespace wm | |
| 201 } // namespace ash | |
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Chromium Code Reviews
Issue 2736573002:
chromeos: Move files in //ash/common to //ash, part 2 (Closed)
