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// Copyright 2012 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/resize_shadow_controller.h"
#include <memory>
#include "ash/public/cpp/window_properties.h"
#include "ash/shell.h"
#include "ash/wm/overview/overview_controller.h"
#include "ash/wm/resize_shadow.h"
#include "chromeos/constants/chromeos_features.h"
#include "ui/aura/client/aura_constants.h"
namespace ash {
namespace {
// Lock shadow params
constexpr ResizeShadow::InitParams kLockParams{
/*thickness=*/6,
/*shadow_corner_radius=*/6,
/*window_corner_radius=*/2,
/*opacity =*/0.3f,
/*color=*/gfx::kGoogleGrey900,
/*hit_test_enabled=*/false,
/*hide_duration_ms=*/0,
};
} // namespace
ResizeShadowController::ResizeShadowController() = default;
ResizeShadowController::~ResizeShadowController() {
RemoveAllShadows();
}
void ResizeShadowController::ShowShadow(aura::Window* window, int hit_test) {
RecreateShadowIfNeeded(window);
if (ShouldShowShadowForWindow(window) && window->IsVisible())
GetShadowForWindow(window)->ShowForHitTest(hit_test);
}
void ResizeShadowController::TryShowAllShadows() {
for (const auto& shadow : window_shadows_)
UpdateShadowVisibility(shadow.first, shadow.first->IsVisible());
}
void ResizeShadowController::HideShadow(aura::Window* window) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (!shadow)
return;
UpdateShadowVisibility(window, false);
}
void ResizeShadowController::HideAllShadows() {
for (auto& shadow : window_shadows_) {
if (!shadow.second)
continue;
switch (shadow.second->type_) {
case ResizeShadowType::kLock: { // Hides lock style of shadow
UpdateShadowVisibility(shadow.first, false);
break;
}
case ResizeShadowType::kUnlock: { // Deletes unlock style of shadow
shadow.second.reset();
break;
}
}
}
}
void ResizeShadowController::OnCrossFadeAnimationCompleted(
aura::Window* window) {
if (auto* shadow = GetShadowForWindow(window)) {
shadow->ReparentLayer();
}
}
void ResizeShadowController::RemoveAllShadows() {
windows_observation_.RemoveAllObservations();
window_shadows_.clear();
}
void ResizeShadowController::OnWindowHierarchyChanged(
const aura::WindowObserver::HierarchyChangeParams& params) {
ResizeShadow* shadow = GetShadowForWindow(params.target);
if (shadow)
shadow->ReparentLayer();
}
void ResizeShadowController::OnWindowVisibilityChanging(aura::Window* window,
bool visible) {
UpdateShadowVisibility(window, visible);
}
void ResizeShadowController::OnWindowBoundsChanged(
aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds,
ui::PropertyChangeReason reason) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow && window->GetProperty(aura::client::kUseWindowBoundsForShadow))
shadow->UpdateBoundsAndVisibility();
}
void ResizeShadowController::OnWindowStackingChanged(aura::Window* window) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow)
shadow->ReparentLayer();
}
void ResizeShadowController::OnWindowDestroying(aura::Window* window) {
windows_observation_.RemoveObservation(window);
window_shadows_.erase(window);
}
void ResizeShadowController::OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) {
if (key != aura::client::kShowStateKey)
return;
UpdateShadowVisibility(window, window->IsVisible());
}
void ResizeShadowController::OnWindowAddedToRootWindow(aura::Window* window) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow) {
shadow->OnWindowParentToRootWindow();
}
}
void ResizeShadowController::UpdateResizeShadowBoundsOfWindow(
aura::Window* window,
const gfx::Rect& bounds) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow)
shadow->UpdateBounds(bounds);
}
ResizeShadow* ResizeShadowController::GetShadowForWindowForTest(
aura::Window* window) {
return GetShadowForWindow(window);
}
void ResizeShadowController::RecreateShadowIfNeeded(aura::Window* window) {
if (!windows_observation_.IsObservingSource(window))
windows_observation_.AddObservation(window);
ResizeShadow* shadow = GetShadowForWindow(window);
const ash::ResizeShadowType type =
window->GetProperty(ash::kResizeShadowTypeKey);
// If the |window| has a resize shadow with the requested type, no need to
// recreate it.
if (shadow && shadow->type_ == type)
return;
ResizeShadow::InitParams params;
if (type == ResizeShadowType::kLock) {
params = kLockParams;
}
// Configure window and shadow corner radius when rounded window corners is
// enabled.
if (chromeos::features::IsRoundedWindowsEnabled()) {
params.thickness = 6;
params.window_corner_radius = chromeos::features::RoundedWindowsRadius();
params.shadow_corner_radius = 16;
}
auto new_shadow = std::make_unique<ResizeShadow>(window, params, type);
auto it = window_shadows_.find(window);
if (it == window_shadows_.end())
window_shadows_.insert(std::make_pair(window, std::move(new_shadow)));
else
it->second = std::move(new_shadow);
}
ResizeShadow* ResizeShadowController::GetShadowForWindow(
aura::Window* window) const {
auto it = window_shadows_.find(window);
return it != window_shadows_.end() ? it->second.get() : nullptr;
}
void ResizeShadowController::UpdateShadowVisibility(aura::Window* window,
bool visible) const {
ResizeShadow* shadow = GetShadowForWindow(window);
if (!shadow)
return;
if (shadow->type_ == ResizeShadowType::kLock) {
visible &= ShouldShowShadowForWindow(window);
if (visible)
shadow->ShowForHitTest();
}
if (!visible)
shadow->Hide();
}
bool ResizeShadowController::ShouldShowShadowForWindow(
aura::Window* window) const {
// Hide the shadow if it's a maximized/fullscreen/minimized window or the
// overview mode is active.
ui::WindowShowState show_state =
window->GetProperty(aura::client::kShowStateKey);
return show_state != ui::SHOW_STATE_FULLSCREEN &&
show_state != ui::SHOW_STATE_MAXIMIZED &&
show_state != ui::SHOW_STATE_MINIMIZED &&
!Shell::Get()->overview_controller()->InOverviewSession();
}
} // namespace ash
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