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

ash/common/wm/window_state.cc

-// Copyright 2013 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/window_state.h"
-
-#include <utility>
-
-#include "ash/common/wm/default_state.h"
-#include "ash/common/wm/window_positioning_utils.h"
-#include "ash/common/wm/window_state_delegate.h"
-#include "ash/common/wm/window_state_observer.h"
-#include "ash/common/wm/wm_event.h"
-#include "ash/common/wm/wm_screen_util.h"
-#include "ash/common/wm_window.h"
-#include "base/auto_reset.h"
-
-namespace ash {
-namespace wm {
-
-namespace {
-
-WMEventType WMEventTypeFromShowState(ui::WindowShowState requested_show_state) {
-  switch (requested_show_state) {
-    case ui::SHOW_STATE_DEFAULT:
-    case ui::SHOW_STATE_NORMAL:
-      return WM_EVENT_NORMAL;
-    case ui::SHOW_STATE_MINIMIZED:
-      return WM_EVENT_MINIMIZE;
-    case ui::SHOW_STATE_MAXIMIZED:
-      return WM_EVENT_MAXIMIZE;
-    case ui::SHOW_STATE_FULLSCREEN:
-      return WM_EVENT_FULLSCREEN;
-    case ui::SHOW_STATE_INACTIVE:
-      return WM_EVENT_SHOW_INACTIVE;
-
-    // TODO(afakhry): Remove Docked Windows in M58.
-    case ui::SHOW_STATE_DOCKED:
-      return WM_EVENT_DOCK;
-    case ui::SHOW_STATE_END:
-      NOTREACHED() << "No WMEvent defined for the show state:"
-                   << requested_show_state;
-  }
-  return WM_EVENT_NORMAL;
-}
-
-}  // namespace
-
-WindowState::~WindowState() {}
-
-bool WindowState::HasDelegate() const {
-  return !!delegate_;
-}
-
-void WindowState::SetDelegate(std::unique_ptr<WindowStateDelegate> delegate) {
-  DCHECK(!delegate_.get());
-  delegate_ = std::move(delegate);
-}
-
-WindowStateType WindowState::GetStateType() const {
-  return current_state_->GetType();
-}
-
-bool WindowState::IsMinimized() const {
-  return GetStateType() == WINDOW_STATE_TYPE_MINIMIZED ||
-         GetStateType() == WINDOW_STATE_TYPE_DOCKED_MINIMIZED;
-}
-
-bool WindowState::IsMaximized() const {
-  return GetStateType() == WINDOW_STATE_TYPE_MAXIMIZED;
-}
-
-bool WindowState::IsFullscreen() const {
-  return GetStateType() == WINDOW_STATE_TYPE_FULLSCREEN;
-}
-
-bool WindowState::IsMaximizedOrFullscreenOrPinned() const {
-  return GetStateType() == WINDOW_STATE_TYPE_MAXIMIZED ||
-         GetStateType() == WINDOW_STATE_TYPE_FULLSCREEN || IsPinned();
-}
-
-bool WindowState::IsSnapped() const {
-  return GetStateType() == WINDOW_STATE_TYPE_LEFT_SNAPPED ||
-         GetStateType() == WINDOW_STATE_TYPE_RIGHT_SNAPPED;
-}
-
-bool WindowState::IsPinned() const {
-  return GetStateType() == WINDOW_STATE_TYPE_PINNED ||
-         GetStateType() == WINDOW_STATE_TYPE_TRUSTED_PINNED;
-}
-
-bool WindowState::IsTrustedPinned() const {
-  return GetStateType() == WINDOW_STATE_TYPE_TRUSTED_PINNED;
-}
-
-bool WindowState::IsNormalStateType() const {
-  return GetStateType() == WINDOW_STATE_TYPE_NORMAL ||
-         GetStateType() == WINDOW_STATE_TYPE_DEFAULT;
-}
-
-bool WindowState::IsNormalOrSnapped() const {
-  return IsNormalStateType() || IsSnapped();
-}
-
-bool WindowState::IsActive() const {
-  return window_->IsActive();
-}
-
-bool WindowState::IsDocked() const {
-  return GetStateType() == WINDOW_STATE_TYPE_DOCKED ||
-         GetStateType() == WINDOW_STATE_TYPE_DOCKED_MINIMIZED;
-}
-
-bool WindowState::IsUserPositionable() const {
-  return (window_->GetType() == ui::wm::WINDOW_TYPE_NORMAL ||
-          window_->GetType() == ui::wm::WINDOW_TYPE_PANEL);
-}
-
-bool WindowState::CanMaximize() const {
-  // Window must allow maximization and have no maximum width or height.
-  if (!window_->CanMaximize())
-    return false;
-
-  if (!window_->HasNonClientArea())
-    return true;
-
-  gfx::Size max_size = window_->GetMaximumSize();
-  return !max_size.width() && !max_size.height();
-}
-
-bool WindowState::CanMinimize() const {
-  return window_->CanMinimize();
-}
-
-bool WindowState::CanResize() const {
-  return window_->CanResize();
-}
-
-bool WindowState::CanActivate() const {
-  return window_->CanActivate();
-}
-
-bool WindowState::CanSnap() const {
-  if (!CanResize() || window_->GetType() == ui::wm::WINDOW_TYPE_PANEL ||
-      window_->GetTransientParent()) {
-    return false;
-  }
-  // If a window cannot be maximized, assume it cannot snap either.
-  // TODO(oshima): We should probably snap if the maximum size is greater than
-  // the snapped size.
-  return CanMaximize();
-}
-
-bool WindowState::HasRestoreBounds() const {
-  return window_->HasRestoreBounds();
-}
-
-void WindowState::Maximize() {
-  window_->Maximize();
-}
-
-void WindowState::Minimize() {
-  window_->Minimize();
-}
-
-void WindowState::Unminimize() {
-  window_->Unminimize();
-}
-
-void WindowState::Activate() {
-  window_->Activate();
-}
-
-void WindowState::Deactivate() {
-  window_->Deactivate();
-}
-
-void WindowState::Restore() {
-  if (!IsNormalStateType()) {
-    const WMEvent event(WM_EVENT_NORMAL);
-    OnWMEvent(&event);
-  }
-}
-
-void WindowState::DisableAlwaysOnTop(WmWindow* window_on_top) {
-  if (GetAlwaysOnTop()) {
-    // |window_| is hidden first to avoid canceling fullscreen mode when it is
-    // no longer always on top and gets added to default container. This avoids
-    // sending redundant OnFullscreenStateChanged to the layout manager. The
-    // |window_| visibility is restored after it no longer obscures the
-    // |window_on_top|.
-    bool visible = window_->IsVisible();
-    if (visible)
-      window_->Hide();
-    window_->SetAlwaysOnTop(false);
-    // Technically it is possible that a |window_| could make itself
-    // always_on_top really quickly. This is probably not a realistic case but
-    // check if the two windows are in the same container just in case.
-    if (window_on_top && window_on_top->GetParent() == window_->GetParent())
-      window_->GetParent()->StackChildAbove(window_on_top, window_);
-    if (visible)
-      window_->Show();
-    cached_always_on_top_ = true;
-  }
-}
-
-void WindowState::RestoreAlwaysOnTop() {
-  if (delegate() && delegate()->RestoreAlwaysOnTop(this))
-    return;
-  if (cached_always_on_top_) {
-    cached_always_on_top_ = false;
-    window_->SetAlwaysOnTop(true);
-  }
-}
-
-void WindowState::OnWMEvent(const WMEvent* event) {
-  current_state_->OnWMEvent(this, event);
-}
-
-void WindowState::SaveCurrentBoundsForRestore() {
-  gfx::Rect bounds_in_screen =
-      window_->GetParent()->ConvertRectToScreen(window_->GetBounds());
-  SetRestoreBoundsInScreen(bounds_in_screen);
-}
-
-gfx::Rect WindowState::GetRestoreBoundsInScreen() const {
-  return window_->GetRestoreBoundsInScreen();
-}
-
-gfx::Rect WindowState::GetRestoreBoundsInParent() const {
-  return window_->GetParent()->ConvertRectFromScreen(
-      GetRestoreBoundsInScreen());
-}
-
-void WindowState::SetRestoreBoundsInScreen(const gfx::Rect& bounds) {
-  window_->SetRestoreBoundsInScreen(bounds);
-}
-
-void WindowState::SetRestoreBoundsInParent(const gfx::Rect& bounds) {
-  SetRestoreBoundsInScreen(window_->GetParent()->ConvertRectToScreen(bounds));
-}
-
-void WindowState::ClearRestoreBounds() {
-  window_->ClearRestoreBounds();
-}
-
-std::unique_ptr<WindowState::State> WindowState::SetStateObject(
-    std::unique_ptr<WindowState::State> new_state) {
-  current_state_->DetachState(this);
-  std::unique_ptr<WindowState::State> old_object = std::move(current_state_);
-  current_state_ = std::move(new_state);
-  current_state_->AttachState(this, old_object.get());
-  return old_object;
-}
-
-void WindowState::SetPreAutoManageWindowBounds(const gfx::Rect& bounds) {
-  pre_auto_manage_window_bounds_.reset(new gfx::Rect(bounds));
-}
-
-void WindowState::AddObserver(WindowStateObserver* observer) {
-  observer_list_.AddObserver(observer);
-}
-
-void WindowState::RemoveObserver(WindowStateObserver* observer) {
-  observer_list_.RemoveObserver(observer);
-}
-
-void WindowState::set_bounds_changed_by_user(bool bounds_changed_by_user) {
-  bounds_changed_by_user_ = bounds_changed_by_user;
-  if (bounds_changed_by_user)
-    pre_auto_manage_window_bounds_.reset();
-}
-
-void WindowState::CreateDragDetails(const gfx::Point& point_in_parent,
-                                    int window_component,
-                                    aura::client::WindowMoveSource source) {
-  drag_details_.reset(
-      new DragDetails(window_, point_in_parent, window_component, source));
-}
-
-void WindowState::DeleteDragDetails() {
-  drag_details_.reset();
-}
-
-void WindowState::SetAndClearRestoreBounds() {
-  DCHECK(HasRestoreBounds());
-  SetBoundsInScreen(GetRestoreBoundsInScreen());
-  ClearRestoreBounds();
-}
-
-void WindowState::OnWindowShowStateChanged() {
-  if (!ignore_property_change_) {
-    WMEvent event(WMEventTypeFromShowState(GetShowState()));
-    OnWMEvent(&event);
-  }
-}
-
-WindowState::WindowState(WmWindow* window)
-    : window_(window),
-      window_position_managed_(false),
-      bounds_changed_by_user_(false),
-      ignored_by_shelf_(false),
-      can_consume_system_keys_(false),
-      unminimize_to_restore_bounds_(false),
-      in_immersive_fullscreen_(false),
-      hide_shelf_when_fullscreen_(true),
-      minimum_visibility_(false),
-      can_be_dragged_(true),
-      cached_always_on_top_(false),
-      ignore_property_change_(false),
-      current_state_(new DefaultState(ToWindowStateType(GetShowState()))) {}
-
-bool WindowState::GetAlwaysOnTop() const {
-  return window_->IsAlwaysOnTop();
-}
-
-ui::WindowShowState WindowState::GetShowState() const {
-  return window_->GetShowState();
-}
-
-void WindowState::SetBoundsInScreen(const gfx::Rect& bounds_in_screen) {
-  gfx::Rect bounds_in_parent =
-      window_->GetParent()->ConvertRectFromScreen(bounds_in_screen);
-  window_->SetBounds(bounds_in_parent);
-}
-
-void WindowState::AdjustSnappedBounds(gfx::Rect* bounds) {
-  if (is_dragged() || !IsSnapped())
-    return;
-  gfx::Rect maximized_bounds = GetMaximizedWindowBoundsInParent(window_);
-  if (GetStateType() == WINDOW_STATE_TYPE_LEFT_SNAPPED)
-    bounds->set_x(maximized_bounds.x());
-  else if (GetStateType() == WINDOW_STATE_TYPE_RIGHT_SNAPPED)
-    bounds->set_x(maximized_bounds.right() - bounds->width());
-  bounds->set_y(maximized_bounds.y());
-  bounds->set_height(maximized_bounds.height());
-}
-
-void WindowState::UpdateWindowShowStateFromStateType() {
-  ui::WindowShowState new_window_state =
-      ToWindowShowState(current_state_->GetType());
-  if (new_window_state != GetShowState()) {
-    base::AutoReset<bool> resetter(&ignore_property_change_, true);
-    window_->SetShowState(new_window_state);
-  }
-}
-
-void WindowState::NotifyPreStateTypeChange(
-    WindowStateType old_window_state_type) {
-  for (auto& observer : observer_list_)
-    observer.OnPreWindowStateTypeChange(this, old_window_state_type);
-}
-
-void WindowState::NotifyPostStateTypeChange(
-    WindowStateType old_window_state_type) {
-  for (auto& observer : observer_list_)
-    observer.OnPostWindowStateTypeChange(this, old_window_state_type);
-}
-
-void WindowState::SetBoundsDirect(const gfx::Rect& bounds) {
-  gfx::Rect actual_new_bounds(bounds);
-  // Ensure we don't go smaller than our minimum bounds in "normal" window
-  // modes
-  if (window_->HasNonClientArea() && !IsMaximized() && !IsFullscreen()) {
-    // Get the minimum usable size of the minimum size and the screen size.
-    gfx::Size min_size = window_->GetMinimumSize();
-    min_size.SetToMin(window_->GetDisplayNearestWindow().work_area().size());
-
-    actual_new_bounds.set_width(
-        std::max(min_size.width(), actual_new_bounds.width()));
-    actual_new_bounds.set_height(
-        std::max(min_size.height(), actual_new_bounds.height()));
-  }
-  window_->SetBoundsDirect(actual_new_bounds);
-}
-
-void WindowState::SetBoundsConstrained(const gfx::Rect& bounds) {
-  gfx::Rect work_area_in_parent = GetDisplayWorkAreaBoundsInParent(window_);
-  gfx::Rect child_bounds(bounds);
-  AdjustBoundsSmallerThan(work_area_in_parent.size(), &child_bounds);
-  SetBoundsDirect(child_bounds);
-}
-
-void WindowState::SetBoundsDirectAnimated(const gfx::Rect& bounds) {
-  window_->SetBoundsDirectAnimated(bounds);
-}
-
-void WindowState::SetBoundsDirectCrossFade(const gfx::Rect& new_bounds) {
-  // Some test results in invoking CrossFadeToBounds when window is not visible.
-  // No animation is necessary in that case, thus just change the bounds and
-  // quit.
-  if (!window_->GetTargetVisibility()) {
-    SetBoundsConstrained(new_bounds);
-    return;
-  }
-
-  window_->SetBoundsDirectCrossFade(new_bounds);
-}
-
-}  // namespace wm
-}  // namespace ash