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// Copyright (c) 2013 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 "ui/keyboard/keyboard_controller_proxy.h"
#include "base/command_line.h"
#include "base/values.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_ui.h"
#include "content/public/common/bindings_policy.h"
#include "ui/aura/layout_manager.h"
#include "ui/aura/window.h"
#include "ui/base/ime/input_method.h"
#include "ui/base/ime/text_input_client.h"
#include "ui/keyboard/keyboard_constants.h"
#include "ui/keyboard/keyboard_switches.h"
#include "ui/keyboard/keyboard_util.h"
#include "ui/wm/core/shadow.h"
namespace {
// The WebContentsDelegate for the keyboard.
// The delegate deletes itself when the keyboard is destroyed.
class KeyboardContentsDelegate : public content::WebContentsDelegate,
public content::WebContentsObserver {
public:
KeyboardContentsDelegate(keyboard::KeyboardControllerProxy* proxy)
: proxy_(proxy) {}
~KeyboardContentsDelegate() override {}
private:
// Overridden from content::WebContentsDelegate:
content::WebContents* OpenURLFromTab(
content::WebContents* source,
const content::OpenURLParams& params) override {
source->GetController().LoadURL(
params.url, params.referrer, params.transition, params.extra_headers);
Observe(source);
return source;
}
bool IsPopupOrPanel(const content::WebContents* source) const override {
return true;
}
void MoveContents(content::WebContents* source,
const gfx::Rect& pos) override {
aura::Window* keyboard = proxy_->GetKeyboardWindow();
// keyboard window must have been added to keyboard container window at this
// point. Otherwise, wrong keyboard bounds is used and may cause problem as
// described in crbug.com/367788.
DCHECK(keyboard->parent());
gfx::Rect bounds = keyboard->bounds();
int new_height = pos.height();
bounds.set_y(bounds.y() + bounds.height() - new_height);
bounds.set_height(new_height);
// Keyboard bounds should only be reset when it actually changes. Otherwise
// it interrupts the initial animation of showing the keyboard. Described in
// crbug.com/356753.
if (bounds != keyboard->bounds())
keyboard->SetBounds(bounds);
}
// Overridden from content::WebContentsDelegate:
void RequestMediaAccessPermission(
content::WebContents* web_contents,
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback) override {
proxy_->RequestAudioInput(web_contents, request, callback);
}
// Overridden from content::WebContentsObserver:
void WebContentsDestroyed() override { delete this; }
keyboard::KeyboardControllerProxy* proxy_;
DISALLOW_COPY_AND_ASSIGN(KeyboardContentsDelegate);
};
} // namespace
namespace keyboard {
KeyboardControllerProxy::KeyboardControllerProxy(
content::BrowserContext* context)
: browser_context_(context), default_url_(kKeyboardURL) {
}
KeyboardControllerProxy::~KeyboardControllerProxy() {
}
const GURL& KeyboardControllerProxy::GetVirtualKeyboardUrl() {
if (keyboard::IsInputViewEnabled()) {
const GURL& override_url = GetOverrideContentUrl();
return override_url.is_valid() ? override_url : default_url_;
} else {
return default_url_;
}
}
void KeyboardControllerProxy::LoadContents(const GURL& url) {
if (keyboard_contents_) {
content::OpenURLParams params(
url,
content::Referrer(),
SINGLETON_TAB,
ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
false);
keyboard_contents_->OpenURL(params);
}
}
aura::Window* KeyboardControllerProxy::GetKeyboardWindow() {
if (!keyboard_contents_) {
content::BrowserContext* context = browser_context();
keyboard_contents_.reset(content::WebContents::Create(
content::WebContents::CreateParams(context,
content::SiteInstance::CreateForURL(context,
GetVirtualKeyboardUrl()))));
keyboard_contents_->SetDelegate(new KeyboardContentsDelegate(this));
SetupWebContents(keyboard_contents_.get());
LoadContents(GetVirtualKeyboardUrl());
keyboard_contents_->GetNativeView()->AddObserver(this);
}
return keyboard_contents_->GetNativeView();
}
bool KeyboardControllerProxy::HasKeyboardWindow() const {
return keyboard_contents_;
}
void KeyboardControllerProxy::ShowKeyboardContainer(aura::Window* container) {
GetKeyboardWindow()->Show();
container->Show();
}
void KeyboardControllerProxy::HideKeyboardContainer(aura::Window* container) {
container->Hide();
GetKeyboardWindow()->Hide();
}
void KeyboardControllerProxy::SetUpdateInputType(ui::TextInputType type) {
}
void KeyboardControllerProxy::EnsureCaretInWorkArea() {
if (GetInputMethod()->GetTextInputClient()) {
aura::Window* keyboard_window = GetKeyboardWindow();
aura::Window* root_window = keyboard_window->GetRootWindow();
gfx::Rect available_bounds = root_window->bounds();
gfx::Rect keyboard_bounds = keyboard_window->bounds();
available_bounds.set_height(available_bounds.height() -
keyboard_bounds.height());
GetInputMethod()->GetTextInputClient()->EnsureCaretInRect(available_bounds);
}
}
void KeyboardControllerProxy::LoadSystemKeyboard() {
DCHECK(keyboard_contents_);
if (keyboard_contents_->GetURL() != default_url_) {
// TODO(bshe): The height of system virtual keyboard and IME virtual
// keyboard may different. The height needs to be restored too.
LoadContents(default_url_);
}
}
void KeyboardControllerProxy::ReloadKeyboardIfNeeded() {
DCHECK(keyboard_contents_);
if (keyboard_contents_->GetURL() != GetVirtualKeyboardUrl()) {
if (keyboard_contents_->GetURL().GetOrigin() !=
GetVirtualKeyboardUrl().GetOrigin()) {
// Sets keyboard window height to 0 before navigate to a keyboard in a
// different extension. This keeps the UX the same as Android.
gfx::Rect bounds = GetKeyboardWindow()->bounds();
bounds.set_y(bounds.y() + bounds.height());
bounds.set_height(0);
GetKeyboardWindow()->SetBounds(bounds);
}
LoadContents(GetVirtualKeyboardUrl());
}
}
void KeyboardControllerProxy::SetupWebContents(content::WebContents* contents) {
}
void KeyboardControllerProxy::OnWindowBoundsChanged(
aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) {
if (!shadow_) {
shadow_.reset(new wm::Shadow());
shadow_->Init(wm::Shadow::STYLE_ACTIVE);
shadow_->layer()->SetVisible(true);
DCHECK(keyboard_contents_->GetNativeView()->parent());
keyboard_contents_->GetNativeView()->parent()->layer()->Add(
shadow_->layer());
}
shadow_->SetContentBounds(new_bounds);
}
void KeyboardControllerProxy::OnWindowDestroyed(aura::Window* window) {
window->RemoveObserver(this);
}
} // namespace keyboard
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