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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/ash/keyboard/chrome_keyboard_ui.h"
#include <string>
#include <utility>
#include "ash/keyboard/ui/keyboard_ui_controller.h"
#include "ash/shell.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "chrome/browser/ui/ash/keyboard/chrome_keyboard_bounds_observer.h"
#include "chrome/browser/ui/ash/keyboard/chrome_keyboard_controller_client.h"
#include "chrome/browser/ui/ash/keyboard/chrome_keyboard_web_contents.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/web_contents.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/ime/ash/ime_bridge.h"
#include "ui/compositor/layer.h"
#include "ui/compositor_extra/shadow.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/wm/core/shadow_types.h"
namespace {
const int kShadowElevationVirtualKeyboard = 2;
} // namespace
ChromeKeyboardUI::ChromeKeyboardUI(content::BrowserContext* context)
: browser_context_(context) {}
ChromeKeyboardUI::~ChromeKeyboardUI() {
DCHECK(!keyboard_controller());
}
// keyboard::KeyboardUI:
aura::Window* ChromeKeyboardUI::LoadKeyboardWindow(LoadCallback callback) {
DCHECK(!keyboard_contents_);
keyboard_contents_ = std::make_unique<ChromeKeyboardWebContents>(
browser_context_,
ChromeKeyboardControllerClient::Get()->GetVirtualKeyboardUrl(),
base::BindOnce(
[](LoadCallback callback) {
ChromeKeyboardControllerClient::Get()->NotifyKeyboardLoaded();
std::move(callback).Run();
},
std::move(callback)),
base::NullCallback());
aura::Window* keyboard_window =
keyboard_contents_->web_contents()->GetNativeView();
keyboard_window->AddObserver(this);
return keyboard_window;
}
aura::Window* ChromeKeyboardUI::GetKeyboardWindow() const {
return keyboard_contents_
? keyboard_contents_->web_contents()->GetNativeView()
: nullptr;
}
ui::GestureConsumer* ChromeKeyboardUI::GetGestureConsumer() const {
return keyboard_contents_
? keyboard_contents_->web_contents()->GetContentNativeView()
: nullptr;
}
ui::InputMethod* ChromeKeyboardUI::GetInputMethod() {
ash::IMEBridge* bridge = ash::IMEBridge::Get();
if (!bridge || !bridge->GetInputContextHandler()) {
// Needed by a handful of browser tests that use MockInputMethod.
return ash::Shell::GetRootWindowForNewWindows()
->GetHost()
->GetInputMethod();
}
return bridge->GetInputContextHandler()->GetInputMethod();
}
void ChromeKeyboardUI::ReloadKeyboardIfNeeded() {
VLOG(1) << "ReloadKeyboardIfNeeded";
DCHECK(keyboard_contents_);
keyboard_contents_->SetKeyboardUrl(
ChromeKeyboardControllerClient::Get()->GetVirtualKeyboardUrl());
}
// aura::WindowObserver:
void ChromeKeyboardUI::OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds,
ui::PropertyChangeReason reason) {
SetShadowAroundKeyboard();
}
void ChromeKeyboardUI::OnWindowDestroyed(aura::Window* window) {
window->RemoveObserver(this);
}
void ChromeKeyboardUI::OnWindowParentChanged(aura::Window* window,
aura::Window* parent) {
SetShadowAroundKeyboard();
}
// private methods:
void ChromeKeyboardUI::SetShadowAroundKeyboard() {
aura::Window* contents_window = GetKeyboardWindow();
DCHECK(contents_window);
if (!shadow_) {
shadow_ = std::make_unique<ui::Shadow>();
shadow_->Init(kShadowElevationVirtualKeyboard);
shadow_->layer()->SetVisible(true);
contents_window->layer()->Add(shadow_->layer());
}
shadow_->SetContentBounds(gfx::Rect(contents_window->bounds().size()));
// In floating mode, make the shadow layer invisible because the shadows are
// drawn manually by the IME extension.
// TODO(https://crbug.com/856195): Remove this when we figure out how ChromeOS
// can draw custom shaped shadows, or how overscrolling can account for
// shadows drawn by IME.
shadow_->layer()->SetVisible(
keyboard_controller()->GetActiveContainerType() ==
keyboard::ContainerType::kFullWidth);
}
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