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ash / wm / desks / desk_bar_view.cc [blame]
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/wm/desks/desk_bar_view.h"
#include "ash/public/cpp/shelf_types.h"
#include "ash/shelf/shelf.h"
#include "ash/wm/desks/desk_bar_controller.h"
#include "ash/wm/desks/desks_constants.h"
#include "ash/wm/desks/desks_controller.h"
#include "ash/wm/work_area_insets.h"
#include "ui/aura/window.h"
#include "ui/base/metadata/metadata_impl_macros.h"
namespace ash {
// -----------------------------------------------------------------------------
// DeskBarView:
DeskBarView::DeskBarView(
aura::Window* root,
base::WeakPtr<WindowOcclusionCalculator> window_occlusion_calculator)
: DeskBarViewBase(root,
DeskBarViewBase::Type::kDeskButton,
window_occlusion_calculator) {}
gfx::Size DeskBarView::CalculatePreferredSize(
const views::SizeBounds& available_size) const {
// The preferred size should be its scroll view contents' size plus the
// horizontal padding at both left/right. In addition, it should not exceed
// the available size.
gfx::Size preferred_size = contents_view_->GetPreferredSize(available_size);
preferred_size.Enlarge(
/*grow_width=*/kDeskBarScrollViewMinimumHorizontalPaddingDeskButton * 2,
/*grow_height=*/0);
preferred_size.SetToMin(GetAvailableBounds().size());
return preferred_size;
}
gfx::Rect DeskBarView::GetAvailableBounds() const {
// Return all available bounds from the full usable workarea for desk bar
// widget based on shelf alignment. Calculations for different shelf alignment
// are as following.
//
// Symbols:
// - H: Home button
// - D: Desk button
// - S: Shelf
// - B: Bar widget
//
// Charts:
// 1. `kBottom`
// ┌────────────────────────────────┐
// │ │
// │ │
// │ │
// │ │
// │ │
// ├────────────────────────────────│
// │ B │
// ├───┬─────┬──────────────────────┤
// │ H │ D │ S │
// └───┴─────┴──────────────────────┘
// 2. `kLeft`
// ┌───┬────────────────────────────┐
// │ H │ │
// ├───┤ ┌──────────────────────────┤
// │ D │ │ B │
// ├───┤ │ │
// │ │ └──────────────────────────┤
// │ │ │
// │ S │ │
// │ │ │
// │ │ │
// └───┴────────────────────────────┘
// 3. `kRight`
// ┌────────────────────────────┬───┐
// │ │ H │
// ├──────────────────────────┐ ├───┤
// │ B │ │ D │
// │ │ ├───┤
// ├──────────────────────────┘ │ │
// │ │ │
// │ │ S │
// │ │ │
// │ │ │
// └────────────────────────────┴───┘
const gfx::Rect work_area =
WorkAreaInsets::ForWindow(root_)->user_work_area_bounds();
gfx::Size bar_size(work_area.width(),
DeskBarViewBase::GetPreferredBarHeight(
root_, DeskBarViewBase::Type::kDeskButton,
DeskBarViewBase::State::kExpanded));
const Shelf* shelf = Shelf::ForWindow(root_);
const gfx::Rect shelf_bounds = shelf->GetShelfBoundsInScreen();
const int desk_button_y =
shelf->desk_button_widget()->GetWindowBoundsInScreen().y();
gfx::Point bar_origin;
switch (shelf->alignment()) {
case ShelfAlignment::kBottom:
bar_origin.set_x(shelf_bounds.x() +
(work_area.width() - bar_size.width()) / 2);
bar_origin.set_y(shelf_bounds.y() - kDeskBarShelfAndBarSpacing -
bar_size.height());
break;
case ShelfAlignment::kLeft:
bar_size.set_width(bar_size.width() - kDeskBarShelfAndBarSpacing);
bar_origin.set_x(shelf_bounds.right() + kDeskBarShelfAndBarSpacing);
bar_origin.set_y(desk_button_y);
break;
case ShelfAlignment::kRight:
bar_size.set_width(bar_size.width() - kDeskBarShelfAndBarSpacing);
bar_origin.set_x(shelf_bounds.x() - kDeskBarShelfAndBarSpacing -
bar_size.width());
bar_origin.set_y(desk_button_y);
break;
case ShelfAlignment::kBottomLocked:
// TODO(yongshun): investigate why we can not add `NOTREACHED()` here.
// If the bar is still visible while we shut down the system, there is a
// chance that this could happen.
bar_size = {0, 0};
bar_origin = {0, 0};
break;
}
return {bar_origin, bar_size};
}
void DeskBarView::UpdateBarBounds() {
// Refresh bounds as preferred. This is needed for dynamic width for the
// bar.
const ShelfAlignment shelf_alignment = Shelf::ForWindow(root_)->alignment();
gfx::Size preferred_size = CalculatePreferredSize({});
gfx::Rect new_bounds = GetAvailableBounds();
switch (shelf_alignment) {
case ShelfAlignment::kBottom:
new_bounds.ClampToCenteredSize(preferred_size);
break;
case ShelfAlignment::kLeft:
new_bounds.set_size(preferred_size);
break;
case ShelfAlignment::kRight:
new_bounds.set_origin(
{new_bounds.right() - preferred_size.width(), new_bounds.y()});
new_bounds.set_size(preferred_size);
break;
case ShelfAlignment::kBottomLocked:
break;
}
GetWidget()->SetBounds(new_bounds);
}
BEGIN_METADATA(DeskBarView)
END_METADATA
} // namespace ash