chromeos: Move files in //ash/common to //ash, part 2

ash/common/wm/workspace/workspace_layout_manager.cc

Index: ash/common/wm/workspace/workspace_layout_manager.cc
diff --git a/ash/common/wm/workspace/workspace_layout_manager.cc b/ash/common/wm/workspace/workspace_layout_manager.cc
deleted file mode 100644
index 055ff856e862a4ed7ba3c72fbe4129260ea9d6c9..0000000000000000000000000000000000000000
--- a/ash/common/wm/workspace/workspace_layout_manager.cc
+++ /dev/null
@@ -1,387 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ash/common/wm/workspace/workspace_layout_manager.h"
-
-#include <algorithm>
-
-#include "ash/common/session/session_state_delegate.h"
-#include "ash/common/shelf/wm_shelf.h"
-#include "ash/common/wm/always_on_top_controller.h"
-#include "ash/common/wm/fullscreen_window_finder.h"
-#include "ash/common/wm/window_positioner.h"
-#include "ash/common/wm/window_state.h"
-#include "ash/common/wm/wm_event.h"
-#include "ash/common/wm/wm_screen_util.h"
-#include "ash/common/wm/workspace/workspace_layout_manager_backdrop_delegate.h"
-#include "ash/common/wm_shell.h"
-#include "ash/common/wm_window.h"
-#include "ash/public/cpp/shell_window_ids.h"
-#include "ash/root_window_controller.h"
-#include "ash/wm/window_properties.h"
-#include "ash/wm/window_state_aura.h"
-#include "base/command_line.h"
-#include "ui/aura/client/aura_constants.h"
-#include "ui/base/ui_base_switches.h"
-#include "ui/compositor/layer.h"
-#include "ui/display/display.h"
-#include "ui/display/screen.h"
-#include "ui/keyboard/keyboard_controller.h"
-#include "ui/keyboard/keyboard_controller_observer.h"
-
-namespace ash {
-
-WorkspaceLayoutManager::WorkspaceLayoutManager(WmWindow* window)
-    : window_(window),
-      root_window_(window->GetRootWindow()),
-      root_window_controller_(root_window_->GetRootWindowController()),
-      shell_(window_->GetShell()),
-      work_area_in_parent_(wm::GetDisplayWorkAreaBoundsInParent(window_)),
-      is_fullscreen_(wm::GetWindowForFullscreenMode(window) != nullptr) {
-  shell_->AddShellObserver(this);
-  shell_->AddActivationObserver(this);
-  root_window_->aura_window()->AddObserver(this);
-  display::Screen::GetScreen()->AddObserver(this);
-  DCHECK(window->aura_window()->GetProperty(kSnapChildrenToPixelBoundary));
-}
-
-WorkspaceLayoutManager::~WorkspaceLayoutManager() {
-  if (root_window_)
-    root_window_->aura_window()->RemoveObserver(this);
-  for (WmWindow* window : windows_) {
-    wm::WindowState* window_state = window->GetWindowState();
-    window_state->RemoveObserver(this);
-    window->aura_window()->RemoveObserver(this);
-  }
-  display::Screen::GetScreen()->RemoveObserver(this);
-  shell_->RemoveActivationObserver(this);
-  shell_->RemoveShellObserver(this);
-}
-
-void WorkspaceLayoutManager::SetMaximizeBackdropDelegate(
-    std::unique_ptr<WorkspaceLayoutManagerBackdropDelegate> delegate) {
-  backdrop_delegate_ = std::move(delegate);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, aura::LayoutManager implementation:
-
-void WorkspaceLayoutManager::OnWindowResized() {}
-
-void WorkspaceLayoutManager::OnWindowAddedToLayout(WmWindow* child) {
-  wm::WindowState* window_state = child->GetWindowState();
-  wm::WMEvent event(wm::WM_EVENT_ADDED_TO_WORKSPACE);
-  window_state->OnWMEvent(&event);
-  windows_.insert(child);
-  child->aura_window()->AddObserver(this);
-  window_state->AddObserver(this);
-  UpdateShelfVisibility();
-  UpdateFullscreenState();
-  if (backdrop_delegate_)
-    backdrop_delegate_->OnWindowAddedToLayout(child);
-  WindowPositioner::RearrangeVisibleWindowOnShow(child);
-  if (WmShell::Get()->IsPinned())
-    child->GetWindowState()->DisableAlwaysOnTop(nullptr);
-}
-
-void WorkspaceLayoutManager::OnWillRemoveWindowFromLayout(WmWindow* child) {
-  windows_.erase(child);
-  child->aura_window()->RemoveObserver(this);
-  child->GetWindowState()->RemoveObserver(this);
-
-  if (child->GetTargetVisibility())
-    WindowPositioner::RearrangeVisibleWindowOnHideOrRemove(child);
-}
-
-void WorkspaceLayoutManager::OnWindowRemovedFromLayout(WmWindow* child) {
-  UpdateShelfVisibility();
-  UpdateFullscreenState();
-  if (backdrop_delegate_)
-    backdrop_delegate_->OnWindowRemovedFromLayout(child);
-}
-
-void WorkspaceLayoutManager::OnChildWindowVisibilityChanged(WmWindow* child,
-                                                            bool visible) {
-  wm::WindowState* window_state = child->GetWindowState();
-  // Attempting to show a minimized window. Unminimize it.
-  if (visible && window_state->IsMinimized())
-    window_state->Unminimize();
-
-  if (child->GetTargetVisibility())
-    WindowPositioner::RearrangeVisibleWindowOnShow(child);
-  else
-    WindowPositioner::RearrangeVisibleWindowOnHideOrRemove(child);
-  UpdateFullscreenState();
-  UpdateShelfVisibility();
-  if (backdrop_delegate_)
-    backdrop_delegate_->OnChildWindowVisibilityChanged(child, visible);
-}
-
-void WorkspaceLayoutManager::SetChildBounds(WmWindow* child,
-                                            const gfx::Rect& requested_bounds) {
-  wm::SetBoundsEvent event(wm::WM_EVENT_SET_BOUNDS, requested_bounds);
-  child->GetWindowState()->OnWMEvent(&event);
-  UpdateShelfVisibility();
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, keyboard::KeyboardControllerObserver implementation:
-
-void WorkspaceLayoutManager::OnKeyboardBoundsChanging(
-    const gfx::Rect& new_bounds) {
-  // If new window behavior flag enabled and in non-sticky mode, do not change
-  // the work area.
-  bool change_work_area =
-      (!base::CommandLine::ForCurrentProcess()->HasSwitch(
-           ::switches::kUseNewVirtualKeyboardBehavior) ||
-       keyboard::KeyboardController::GetInstance()->keyboard_locked());
-  if (!change_work_area)
-    return;
-
-  WmWindow* window = shell_->GetActiveWindow();
-  if (!window)
-    return;
-
-  window = window->GetToplevelWindow();
-  if (!window_->Contains(window))
-    return;
-
-  wm::WindowState* window_state = window->GetWindowState();
-  if (window_state->ignore_keyboard_bounds_change())
-    return;
-
-  if (!new_bounds.IsEmpty()) {
-    // Store existing bounds to be restored before resizing for keyboard if it
-    // is not already stored.
-    if (!window_state->HasRestoreBounds())
-      window_state->SaveCurrentBoundsForRestore();
-
-    gfx::Rect window_bounds =
-        window_->ConvertRectToScreen(window->GetTargetBounds());
-    int vertical_displacement =
-        std::max(0, window_bounds.bottom() - new_bounds.y());
-    int shift = std::min(vertical_displacement,
-                         window_bounds.y() - work_area_in_parent_.y());
-    if (shift > 0) {
-      gfx::Point origin(window_bounds.x(), window_bounds.y() - shift);
-      SetChildBounds(window, gfx::Rect(origin, window_bounds.size()));
-    }
-  } else if (window_state->HasRestoreBounds()) {
-    // Keyboard hidden, restore original bounds if they exist. If the user has
-    // resized or dragged the window in the meantime, WorkspaceWindowResizer
-    // will have cleared the restore bounds and this code will not accidentally
-    // override user intent.
-    window_state->SetAndClearRestoreBounds();
-  }
-}
-
-void WorkspaceLayoutManager::OnKeyboardClosed() {}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, aura::WindowObserver implementation:
-
-void WorkspaceLayoutManager::OnWindowHierarchyChanged(
-    const HierarchyChangeParams& params) {
-  if (!wm::GetWindowState(params.target)->IsActive())
-    return;
-  // If the window is already tracked by the workspace this update would be
-  // redundant as the fullscreen and shelf state would have been handled in
-  // OnWindowAddedToLayout.
-  if (windows_.find(WmWindow::Get(params.target)) != windows_.end())
-    return;
-
-  // If the active window has moved to this root window then update the
-  // fullscreen state.
-  // TODO(flackr): Track the active window leaving this root window and update
-  // the fullscreen state accordingly.
-  if (params.new_parent &&
-      WmWindow::Get(params.new_parent->GetRootWindow()) == root_window_) {
-    UpdateFullscreenState();
-    UpdateShelfVisibility();
-  }
-}
-
-void WorkspaceLayoutManager::OnWindowPropertyChanged(aura::Window* window,
-                                                     const void* key,
-                                                     intptr_t old) {
-  if (key == aura::client::kAlwaysOnTopKey &&
-      window->GetProperty(aura::client::kAlwaysOnTopKey)) {
-    WmWindow* container =
-        root_window_controller_->always_on_top_controller()->GetContainer(
-            WmWindow::Get(window));
-    if (WmWindow::Get(window->parent()) != container)
-      container->AddChild(WmWindow::Get(window));
-  }
-}
-
-void WorkspaceLayoutManager::OnWindowStackingChanged(aura::Window* window) {
-  UpdateShelfVisibility();
-  UpdateFullscreenState();
-  if (backdrop_delegate_)
-    backdrop_delegate_->OnWindowStackingChanged(WmWindow::Get(window));
-}
-
-void WorkspaceLayoutManager::OnWindowDestroying(aura::Window* window) {
-  if (root_window_ == WmWindow::Get(window)) {
-    root_window_->aura_window()->RemoveObserver(this);
-    root_window_ = nullptr;
-  }
-}
-
-void WorkspaceLayoutManager::OnWindowBoundsChanged(
-    aura::Window* window,
-    const gfx::Rect& old_bounds,
-    const gfx::Rect& new_bounds) {
-  if (root_window_ == WmWindow::Get(window)) {
-    const wm::WMEvent wm_event(wm::WM_EVENT_DISPLAY_BOUNDS_CHANGED);
-    AdjustAllWindowsBoundsForWorkAreaChange(&wm_event);
-  }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager,
-// aura::client::ActivationChangeObserver implementation:
-
-void WorkspaceLayoutManager::OnWindowActivated(WmWindow* gained_active,
-                                               WmWindow* lost_active) {
-  wm::WindowState* window_state =
-      gained_active ? gained_active->GetWindowState() : nullptr;
-  if (window_state && window_state->IsMinimized() &&
-      !gained_active->IsVisible()) {
-    window_state->Unminimize();
-    DCHECK(!window_state->IsMinimized());
-  }
-  UpdateFullscreenState();
-  UpdateShelfVisibility();
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, wm::WindowStateObserver implementation:
-
-void WorkspaceLayoutManager::OnPostWindowStateTypeChange(
-    wm::WindowState* window_state,
-    wm::WindowStateType old_type) {
-  // Notify observers that fullscreen state may be changing.
-  if (window_state->IsFullscreen() ||
-      old_type == wm::WINDOW_STATE_TYPE_FULLSCREEN) {
-    UpdateFullscreenState();
-  }
-
-  UpdateShelfVisibility();
-  if (backdrop_delegate_)
-    backdrop_delegate_->OnPostWindowStateTypeChange(window_state, old_type);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, display::DisplayObserver implementation:
-
-void WorkspaceLayoutManager::OnDisplayMetricsChanged(
-    const display::Display& display,
-    uint32_t changed_metrics) {
-  if (window_->GetDisplayNearestWindow().id() != display.id())
-    return;
-
-  const gfx::Rect work_area(wm::GetDisplayWorkAreaBoundsInParent(window_));
-  if (work_area != work_area_in_parent_) {
-    const wm::WMEvent event(wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED);
-    AdjustAllWindowsBoundsForWorkAreaChange(&event);
-  }
-  if (backdrop_delegate_)
-    backdrop_delegate_->OnDisplayWorkAreaInsetsChanged();
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, ShellObserver implementation:
-
-void WorkspaceLayoutManager::OnFullscreenStateChanged(bool is_fullscreen,
-                                                      WmWindow* root_window) {
-  if (root_window != root_window_ || is_fullscreen_ == is_fullscreen)
-    return;
-
-  is_fullscreen_ = is_fullscreen;
-  if (WmShell::Get()->IsPinned()) {
-    // If this is in pinned mode, then this event does not trigger the
-    // always-on-top state change, because it is kept disabled regardless of
-    // the fullscreen state change.
-    return;
-  }
-
-  UpdateAlwaysOnTop(is_fullscreen_ ? wm::GetWindowForFullscreenMode(window_)
-                                   : nullptr);
-}
-
-void WorkspaceLayoutManager::OnPinnedStateChanged(WmWindow* pinned_window) {
-  if (!WmShell::Get()->IsPinned() && is_fullscreen_) {
-    // On exiting from pinned mode, if the workspace is still in fullscreen
-    // mode, then this event does not trigger the restoring yet. On exiting
-    // from fullscreen, the temporarily disabled always-on-top property will be
-    // restored.
-    return;
-  }
-
-  UpdateAlwaysOnTop(WmShell::Get()->IsPinned() ? pinned_window : nullptr);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// WorkspaceLayoutManager, private:
-
-void WorkspaceLayoutManager::AdjustAllWindowsBoundsForWorkAreaChange(
-    const wm::WMEvent* event) {
-  DCHECK(event->type() == wm::WM_EVENT_DISPLAY_BOUNDS_CHANGED ||
-         event->type() == wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED);
-
-  work_area_in_parent_ = wm::GetDisplayWorkAreaBoundsInParent(window_);
-
-  // Don't do any adjustments of the insets while we are in screen locked mode.
-  // This would happen if the launcher was auto hidden before the login screen
-  // was shown and then gets shown when the login screen gets presented.
-  if (event->type() == wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED &&
-      shell_->GetSessionStateDelegate()->IsScreenLocked())
-    return;
-
-  // If a user plugs an external display into a laptop running Aura the
-  // display size will change.  Maximized windows need to resize to match.
-  // We also do this when developers running Aura on a desktop manually resize
-  // the host window.
-  // We also need to do this when the work area insets changes.
-  for (WmWindow* window : windows_)
-    window->GetWindowState()->OnWMEvent(event);
-}
-
-void WorkspaceLayoutManager::UpdateShelfVisibility() {
-  if (root_window_controller_->HasShelf())
-    root_window_controller_->GetShelf()->UpdateVisibilityState();
-}
-
-void WorkspaceLayoutManager::UpdateFullscreenState() {
-  // TODO(flackr): The fullscreen state is currently tracked per workspace
-  // but the shell notification implies a per root window state. Currently
-  // only windows in the default workspace container will go fullscreen but
-  // this should really be tracked by the RootWindowController since
-  // technically any container could get a fullscreen window.
-  if (window_->GetShellWindowId() != kShellWindowId_DefaultContainer)
-    return;
-  bool is_fullscreen = wm::GetWindowForFullscreenMode(window_) != nullptr;
-  if (is_fullscreen != is_fullscreen_) {
-    WmShell::Get()->NotifyFullscreenStateChanged(is_fullscreen, root_window_);
-    is_fullscreen_ = is_fullscreen;
-  }
-}
-
-void WorkspaceLayoutManager::UpdateAlwaysOnTop(WmWindow* window_on_top) {
-  // Changing always on top state may change window's parent. Iterate on a copy
-  // of |windows_| to avoid invalidating an iterator. Since both workspace and
-  // always_on_top containers' layouts are managed by this class all the
-  // appropriate windows will be included in the iteration.
-  WindowSet windows(windows_);
-  for (auto* window : windows) {
-    wm::WindowState* window_state = window->GetWindowState();
-    if (window_on_top)
-      window_state->DisableAlwaysOnTop(window_on_top);
-    else
-      window_state->RestoreAlwaysOnTop();
-  }
-}
-
-}  // namespace ash