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// Copyright 2017 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 "chrome/browser/ui/webui/chromeos/system_web_dialog_delegate.h"
#include <list>
#include "ash/public/cpp/shell_window_ids.h"
#include "base/no_destructor.h"
#include "base/stl_util.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/views/chrome_web_dialog_view.h"
#include "chromeos/constants/chromeos_features.h"
#include "components/session_manager/core/session_manager.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/host_zoom_map.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "third_party/blink/public/common/page/page_zoom.h"
#include "ui/aura/window.h"
namespace chromeos {
namespace {
// Track all open system web dialog instances. This should be a small list.
std::list<SystemWebDialogDelegate*>* GetInstances() {
static base::NoDestructor<std::list<SystemWebDialogDelegate*>> instances;
return instances.get();
}
} // namespace
// static
SystemWebDialogDelegate* SystemWebDialogDelegate::FindInstance(
const std::string& id) {
auto* instances = GetInstances();
auto iter =
std::find_if(instances->begin(), instances->end(),
[id](SystemWebDialogDelegate* i) { return i->Id() == id; });
return iter == instances->end() ? nullptr : *iter;
}
// static
bool SystemWebDialogDelegate::HasInstance(const GURL& url) {
auto* instances = GetInstances();
auto it = std::find_if(
instances->begin(), instances->end(),
[url](SystemWebDialogDelegate* dialog) { return dialog->gurl_ == url; });
return it != instances->end();
}
SystemWebDialogDelegate::SystemWebDialogDelegate(const GURL& gurl,
const base::string16& title)
: gurl_(gurl), title_(title), modal_type_(ui::MODAL_TYPE_NONE) {
switch (session_manager::SessionManager::Get()->session_state()) {
// Normally system dialogs are not modal.
case session_manager::SessionState::UNKNOWN:
case session_manager::SessionState::LOGGED_IN_NOT_ACTIVE:
case session_manager::SessionState::ACTIVE:
break;
// These states use an overlay so dialogs must be modal.
case session_manager::SessionState::OOBE:
case session_manager::SessionState::LOGIN_PRIMARY:
case session_manager::SessionState::LOCKED:
case session_manager::SessionState::LOGIN_SECONDARY:
modal_type_ = ui::MODAL_TYPE_SYSTEM;
break;
}
GetInstances()->push_back(this);
}
SystemWebDialogDelegate::~SystemWebDialogDelegate() {
base::EraseIf(*GetInstances(),
[this](SystemWebDialogDelegate* i) { return i == this; });
}
const std::string& SystemWebDialogDelegate::Id() {
return gurl_.spec();
}
void SystemWebDialogDelegate::Focus() {
// Focusing a modal dialog does not make it the topmost dialog and does not
// enable interaction. It does however remove focus from the current dialog,
// preventing interaction with any dialog. TODO(stevenjb): Investigate and
// fix, https://crbug.com/914133.
if (modal_type_ == ui::MODAL_TYPE_NONE)
dialog_window()->Focus();
}
void SystemWebDialogDelegate::Close() {
DCHECK(dialog_window());
views::Widget::GetWidgetForNativeWindow(dialog_window())->Close();
}
ui::ModalType SystemWebDialogDelegate::GetDialogModalType() const {
return modal_type_;
}
base::string16 SystemWebDialogDelegate::GetDialogTitle() const {
return title_;
}
GURL SystemWebDialogDelegate::GetDialogContentURL() const {
return gurl_;
}
void SystemWebDialogDelegate::GetWebUIMessageHandlers(
std::vector<content::WebUIMessageHandler*>* handlers) const {}
void SystemWebDialogDelegate::GetDialogSize(gfx::Size* size) const {
size->SetSize(kDialogWidth, kDialogHeight);
}
bool SystemWebDialogDelegate::CanResizeDialog() const {
return false;
}
std::string SystemWebDialogDelegate::GetDialogArgs() const {
return std::string();
}
void SystemWebDialogDelegate::OnDialogShown(
content::WebUI* webui,
content::RenderViewHost* render_view_host) {
webui_ = webui;
if (features::IsSplitSettingsEnabled()) {
// System dialogs don't use the browser's default page zoom. Their contents
// stay at 100% to match the size of app list, shelf, status area, etc.
auto* web_contents = webui_->GetWebContents();
auto* rvh = web_contents->GetRenderViewHost();
auto* zoom_map = content::HostZoomMap::GetForWebContents(web_contents);
// Temporary means the lifetime of the WebContents.
zoom_map->SetTemporaryZoomLevel(rvh->GetProcess()->GetID(),
rvh->GetRoutingID(),
blink::PageZoomFactorToZoomLevel(1.0));
}
}
void SystemWebDialogDelegate::OnDialogClosed(const std::string& json_retval) {
delete this;
}
void SystemWebDialogDelegate::OnCloseContents(content::WebContents* source,
bool* out_close_dialog) {
*out_close_dialog = true;
}
bool SystemWebDialogDelegate::ShouldShowDialogTitle() const {
return !title_.empty();
}
void SystemWebDialogDelegate::ShowSystemDialogForBrowserContext(
content::BrowserContext* browser_context,
gfx::NativeWindow parent) {
views::Widget::InitParams extra_params;
// If unparented and not modal, keep it on top (see header comment).
if (!parent && GetDialogModalType() == ui::MODAL_TYPE_NONE)
extra_params.z_order = ui::ZOrderLevel::kFloatingWindow;
AdjustWidgetInitParams(&extra_params);
dialog_window_ = chrome::ShowWebDialogWithParams(
parent, browser_context, this,
base::make_optional<views::Widget::InitParams>(std::move(extra_params)));
}
void SystemWebDialogDelegate::ShowSystemDialog(gfx::NativeWindow parent) {
ShowSystemDialogForBrowserContext(ProfileManager::GetActiveUserProfile(),
parent);
}
} // namespace chromeos
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