| // 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/wm/workspace/workspace_layout_manager.h" |
| |
| #include "ash/root_window_controller.h" |
| #include "ash/screen_ash.h" |
| #include "ash/shelf/shelf_layout_manager.h" |
| #include "ash/shell.h" |
| #include "ash/wm/always_on_top_controller.h" |
| #include "ash/wm/base_layout_manager.h" |
| #include "ash/wm/frame_painter.h" |
| #include "ash/wm/property_util.h" |
| #include "ash/wm/window_animations.h" |
| #include "ash/wm/window_properties.h" |
| #include "ash/wm/window_util.h" |
| #include "ash/wm/workspace/auto_window_management.h" |
| #include "ui/aura/client/aura_constants.h" |
| #include "ui/aura/root_window.h" |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_observer.h" |
| #include "ui/base/events/event.h" |
| #include "ui/base/ui_base_types.h" |
| #include "ui/views/corewm/window_util.h" |
| |
| using aura::Window; |
| |
| namespace ash { |
| |
| namespace internal { |
| |
| namespace { |
| |
| // This specifies how much percent 30% of a window rect (width / height) |
| // must be visible when the window is added to the workspace. |
| const float kMinimumPercentOnScreenArea = 0.3f; |
| |
| bool IsMaximizedState(ui::WindowShowState state) { |
| return state == ui::SHOW_STATE_MAXIMIZED || |
| state == ui::SHOW_STATE_FULLSCREEN; |
| } |
| |
| } // namespace |
| |
| WorkspaceLayoutManager::WorkspaceLayoutManager(aura::Window* window) |
| : BaseLayoutManager(window->GetRootWindow()), |
| shelf_(NULL), |
| window_(window), |
| work_area_(ScreenAsh::GetDisplayWorkAreaBoundsInParent( |
| window->parent())) { |
| } |
| |
| WorkspaceLayoutManager::~WorkspaceLayoutManager() { |
| } |
| |
| void WorkspaceLayoutManager::SetShelf(internal::ShelfLayoutManager* shelf) { |
| shelf_ = shelf; |
| } |
| |
| void WorkspaceLayoutManager::OnWindowAddedToLayout(Window* child) { |
| // Adjust window bounds in case that the new child is given the bounds that |
| // is out of the workspace. Exclude the case where bounds is empty |
| // (this happens when a views::Widget is created), or the window |
| // is added with the bounds because a user explicitly moved to |
| // this position (drag and drop for example). |
| if (!child->bounds().IsEmpty() && |
| !wm::HasUserChangedWindowPositionOrSize(child)) |
| AdjustWindowBoundsWhenAdded(child); |
| BaseLayoutManager::OnWindowAddedToLayout(child); |
| UpdateDesktopVisibility(); |
| RearrangeVisibleWindowOnShow(child); |
| } |
| |
| void WorkspaceLayoutManager::OnWillRemoveWindowFromLayout(Window* child) { |
| BaseLayoutManager::OnWillRemoveWindowFromLayout(child); |
| if (child->TargetVisibility()) |
| RearrangeVisibleWindowOnHideOrRemove(child); |
| } |
| |
| void WorkspaceLayoutManager::OnWindowRemovedFromLayout(Window* child) { |
| BaseLayoutManager::OnWindowRemovedFromLayout(child); |
| UpdateDesktopVisibility(); |
| } |
| |
| void WorkspaceLayoutManager::OnChildWindowVisibilityChanged(Window* child, |
| bool visible) { |
| BaseLayoutManager::OnChildWindowVisibilityChanged(child, visible); |
| if (child->TargetVisibility()) |
| RearrangeVisibleWindowOnShow(child); |
| else |
| RearrangeVisibleWindowOnHideOrRemove(child); |
| UpdateDesktopVisibility(); |
| } |
| |
| void WorkspaceLayoutManager::SetChildBounds( |
| Window* child, |
| const gfx::Rect& requested_bounds) { |
| if (!GetTrackedByWorkspace(child)) { |
| SetChildBoundsDirect(child, requested_bounds); |
| return; |
| } |
| gfx::Rect child_bounds(requested_bounds); |
| // Some windows rely on this to set their initial bounds. |
| if (!SetMaximizedOrFullscreenBounds(child)) { |
| // Non-maximized/full-screen windows have their size constrained to the |
| // work-area. |
| child_bounds.set_width(std::min(work_area_.width(), child_bounds.width())); |
| child_bounds.set_height( |
| std::min(work_area_.height(), child_bounds.height())); |
| SetChildBoundsDirect(child, child_bounds); |
| } |
| UpdateDesktopVisibility(); |
| } |
| |
| void WorkspaceLayoutManager::OnDisplayWorkAreaInsetsChanged() { |
| const gfx::Rect work_area(ScreenAsh::GetDisplayWorkAreaBoundsInParent( |
| window_->parent())); |
| if (work_area != work_area_) { |
| AdjustAllWindowsBoundsForWorkAreaChange( |
| ADJUST_WINDOW_WORK_AREA_INSETS_CHANGED); |
| } |
| } |
| |
| void WorkspaceLayoutManager::OnWindowPropertyChanged(Window* window, |
| const void* key, |
| intptr_t old) { |
| if (key == aura::client::kShowStateKey) { |
| ui::WindowShowState old_state = static_cast<ui::WindowShowState>(old); |
| ui::WindowShowState new_state = |
| window->GetProperty(aura::client::kShowStateKey); |
| if (old_state != ui::SHOW_STATE_MINIMIZED && |
| GetRestoreBoundsInScreen(window) == NULL && |
| IsMaximizedState(new_state) && |
| !IsMaximizedState(old_state)) { |
| SetRestoreBoundsInParent(window, window->bounds()); |
| } |
| // When restoring from a minimized state, we want to restore to the |
| // previous (maybe L/R maximized) state. Since we do also want to keep the |
| // restore rectangle, we set the restore rectangle to the rectangle we want |
| // to restore to and restore it after we switched so that it is preserved. |
| gfx::Rect restore; |
| if (old_state == ui::SHOW_STATE_MINIMIZED && |
| (new_state == ui::SHOW_STATE_NORMAL || |
| new_state == ui::SHOW_STATE_DEFAULT) && |
| GetRestoreBoundsInScreen(window) && |
| !GetWindowAlwaysRestoresToRestoreBounds(window)) { |
| restore = *GetRestoreBoundsInScreen(window); |
| SetRestoreBoundsInScreen(window, window->GetBoundsInScreen()); |
| } |
| |
| UpdateBoundsFromShowState(window); |
| ShowStateChanged(window, old_state); |
| |
| // Set the restore rectangle to the previously set restore rectangle. |
| if (!restore.IsEmpty()) |
| SetRestoreBoundsInScreen(window, restore); |
| } |
| |
| if (key == internal::kWindowTrackedByWorkspaceKey && |
| GetTrackedByWorkspace(window)) { |
| SetMaximizedOrFullscreenBounds(window); |
| } |
| |
| if (key == aura::client::kAlwaysOnTopKey && |
| window->GetProperty(aura::client::kAlwaysOnTopKey)) { |
| internal::AlwaysOnTopController* controller = |
| GetRootWindowController(window->GetRootWindow())-> |
| always_on_top_controller(); |
| controller->GetContainer(window)->AddChild(window); |
| } |
| } |
| |
| void WorkspaceLayoutManager::ShowStateChanged( |
| Window* window, |
| ui::WindowShowState last_show_state) { |
| BaseLayoutManager::ShowStateChanged(window, last_show_state); |
| UpdateDesktopVisibility(); |
| } |
| |
| void WorkspaceLayoutManager::AdjustAllWindowsBoundsForWorkAreaChange( |
| AdjustWindowReason reason) { |
| work_area_ = ScreenAsh::GetDisplayWorkAreaBoundsInParent(window_->parent()); |
| BaseLayoutManager::AdjustAllWindowsBoundsForWorkAreaChange(reason); |
| } |
| |
| void WorkspaceLayoutManager::AdjustWindowBoundsForWorkAreaChange( |
| Window* window, |
| AdjustWindowReason reason) { |
| if (!GetTrackedByWorkspace(window)) |
| return; |
| |
| // Use cross fade transition for the maximized window if the adjustment |
| // happens due to the shelf's visibility change. Otherwise the background |
| // can be seen slightly between the bottom edge of resized-window and |
| // the animating shelf. |
| // TODO(mukai): this cause slight blur at the window frame because of the |
| // cross fade. I think this is better, but should reconsider if someone |
| // raises voice for this. |
| if (wm::IsWindowMaximized(window) && |
| reason == ADJUST_WINDOW_WORK_AREA_INSETS_CHANGED) { |
| CrossFadeToBounds(window, ScreenAsh::GetMaximizedWindowBoundsInParent( |
| window->parent()->parent())); |
| return; |
| } |
| |
| if (SetMaximizedOrFullscreenBounds(window)) |
| return; |
| |
| gfx::Rect bounds = window->bounds(); |
| switch (reason) { |
| case ADJUST_WINDOW_DISPLAY_SIZE_CHANGED: |
| // The work area may be smaller than the full screen. Put as much of the |
| // window as possible within the display area. |
| bounds.AdjustToFit(work_area_); |
| break; |
| case ADJUST_WINDOW_WORK_AREA_INSETS_CHANGED: |
| ash::wm::AdjustBoundsToEnsureMinimumWindowVisibility(work_area_, &bounds); |
| break; |
| } |
| if (window->bounds() != bounds) |
| window->SetBounds(bounds); |
| } |
| |
| void WorkspaceLayoutManager::AdjustWindowBoundsWhenAdded( |
| Window* window) { |
| if (!GetTrackedByWorkspace(window)) |
| return; |
| |
| if (SetMaximizedOrFullscreenBounds(window)) |
| return; |
| |
| gfx::Rect bounds = window->bounds(); |
| int min_width = bounds.width() * kMinimumPercentOnScreenArea; |
| int min_height = bounds.height() * kMinimumPercentOnScreenArea; |
| ash::wm::AdjustBoundsToEnsureWindowVisibility( |
| work_area_, min_width, min_height, &bounds); |
| |
| if (window->bounds() != bounds) |
| window->SetBounds(bounds); |
| } |
| |
| void WorkspaceLayoutManager::UpdateDesktopVisibility() { |
| if (shelf_) |
| shelf_->UpdateVisibilityState(); |
| FramePainter::UpdateSoloWindowHeader(window_->GetRootWindow()); |
| } |
| |
| void WorkspaceLayoutManager::UpdateBoundsFromShowState(Window* window) { |
| // See comment in SetMaximizedOrFullscreenBounds() as to why we use parent in |
| // these calculation. |
| switch (window->GetProperty(aura::client::kShowStateKey)) { |
| case ui::SHOW_STATE_DEFAULT: |
| case ui::SHOW_STATE_NORMAL: { |
| const gfx::Rect* restore = GetRestoreBoundsInScreen(window); |
| // Make sure that the part of the window is always visible |
| // when restored. |
| gfx::Rect bounds_in_parent; |
| if (restore) { |
| bounds_in_parent = |
| ScreenAsh::ConvertRectFromScreen(window->parent()->parent(), |
| *restore); |
| |
| ash::wm::AdjustBoundsToEnsureMinimumWindowVisibility( |
| work_area_, &bounds_in_parent); |
| } else { |
| // Minimized windows have no restore bounds. |
| // Use the current bounds instead. |
| bounds_in_parent = window->bounds(); |
| ash::wm::AdjustBoundsToEnsureMinimumWindowVisibility( |
| work_area_, &bounds_in_parent); |
| // Don't start animation if the bounds didn't change. |
| if (bounds_in_parent == window->bounds()) |
| bounds_in_parent.SetRect(0, 0, 0, 0); |
| } |
| if (!bounds_in_parent.IsEmpty()) { |
| CrossFadeToBounds( |
| window, |
| BaseLayoutManager::BoundsWithScreenEdgeVisible( |
| window->parent()->parent(), |
| bounds_in_parent)); |
| } |
| ClearRestoreBounds(window); |
| break; |
| } |
| |
| case ui::SHOW_STATE_MAXIMIZED: |
| CrossFadeToBounds(window, ScreenAsh::GetMaximizedWindowBoundsInParent( |
| window->parent()->parent())); |
| break; |
| case ui::SHOW_STATE_FULLSCREEN: |
| CrossFadeToBounds(window, ScreenAsh::GetDisplayBoundsInParent( |
| window->parent()->parent())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| bool WorkspaceLayoutManager::SetMaximizedOrFullscreenBounds( |
| aura::Window* window) { |
| if (!GetTrackedByWorkspace(window)) |
| return false; |
| |
| // During animations there is a transform installed on the workspace |
| // windows. For this reason this code uses the parent so that the transform is |
| // ignored. |
| if (wm::IsWindowMaximized(window)) { |
| SetChildBoundsDirect( |
| window, ScreenAsh::GetMaximizedWindowBoundsInParent( |
| window->parent()->parent())); |
| return true; |
| } |
| if (wm::IsWindowFullscreen(window)) { |
| SetChildBoundsDirect( |
| window, |
| ScreenAsh::GetDisplayBoundsInParent(window->parent()->parent())); |
| return true; |
| } |
| return false; |
| } |
| |
| } // namespace internal |
| } // namespace ash |