blob: b62f7e835880a7f49ab96c50a80cb77ba552cad3 [file] [log] [blame]
// Copyright 2016 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/shelf/shelf_window_targeter.h"
#include "ash/public/cpp/session_types.h"
#include "ash/public/cpp/shelf_types.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/session/session_controller.h"
#include "ash/shelf/shelf.h"
#include "ash/shelf/shelf_constants.h"
#include "ash/shelf/shelf_widget.h"
#include "ash/shell.h"
#include "ui/aura/window.h"
namespace ash {
namespace {
gfx::Insets GetInsetsForAlignment(int distance, ShelfAlignment alignment) {
if (alignment == SHELF_ALIGNMENT_LEFT)
return gfx::Insets(0, 0, 0, distance);
if (alignment == SHELF_ALIGNMENT_RIGHT)
return gfx::Insets(0, distance, 0, 0);
return gfx::Insets(distance, 0, 0, 0);
} // namespace
ShelfWindowTargeter::ShelfWindowTargeter(aura::Window* container, Shelf* shelf)
: ::wm::EasyResizeWindowTargeter(gfx::Insets(), gfx::Insets()),
shelf_(shelf) {
ShelfWindowTargeter::~ShelfWindowTargeter() {
// Ensure that the observers were removed and the shelf pointer was cleared.
bool ShelfWindowTargeter::ShouldUseExtendedBounds(
const aura::Window* window) const {
return true;
bool ShelfWindowTargeter::GetHitTestRects(
aura::Window* target,
gfx::Rect* hit_test_rect_mouse,
gfx::Rect* hit_test_rect_touch) const {
// We only want to special case a very specific situation where we are not
// currently in an active session (or unknown session state) and change only
// the behavior of the login shelf. On secondary displays, the login shelf
// will not be visible.
if (target->id() == kShellWindowId_ShelfContainer && shelf_->IsVisible() &&
Shell::Get()->session_controller()->GetSessionState() !=
session_manager::SessionState::ACTIVE &&
Shell::Get()->session_controller()->GetSessionState() !=
session_manager::SessionState::UNKNOWN) {
// When this is the case, let events pass through the "empty" part of
// the shelf.
return shelf_->shelf_widget()->GetHitTestRects(target, hit_test_rect_mouse,
// Otherwise, fall back to what our superclass does.
return EasyResizeWindowTargeter::GetHitTestRects(target, hit_test_rect_mouse,
void ShelfWindowTargeter::OnWindowDestroying(aura::Window* window) {
shelf_ = nullptr;
void ShelfWindowTargeter::WillChangeVisibilityState(
ShelfVisibilityState new_state) {
gfx::Insets mouse_insets;
gfx::Insets touch_insets;
if (new_state == SHELF_VISIBLE) {
// Let clicks at the very top of the shelf through so windows can be
// resized with the bottom-right corner and bottom edge.
mouse_insets =
GetInsetsForAlignment(kWorkspaceAreaVisibleInset, shelf_->alignment());
} else if (new_state == SHELF_AUTO_HIDE) {
// Extend the touch hit target out a bit to allow users to drag shelf out
// while hidden.
touch_insets = GetInsetsForAlignment(-kWorkspaceAreaAutoHideInset,
SetInsets(mouse_insets, touch_insets);
} // namespace ash