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// Copyright (c) 2012 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/web_contents_modal_dialog_manager.h"
#include "chrome/browser/ui/web_contents_modal_dialog_manager_delegate.h"
#include "chrome/common/render_messages.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
using content::WebContents;
DEFINE_WEB_CONTENTS_USER_DATA_KEY(WebContentsModalDialogManager);
WebContentsModalDialogManager::~WebContentsModalDialogManager() {
DCHECK(child_dialogs_.empty());
}
void WebContentsModalDialogManager::ShowDialog(
NativeWebContentsModalDialog dialog) {
child_dialogs_.push_back(dialog);
native_manager_->ManageDialog(dialog);
if (child_dialogs_.size() == 1) {
native_manager_->ShowDialog(dialog);
BlockWebContentsInteraction(true);
}
}
void WebContentsModalDialogManager::BlockWebContentsInteraction(bool blocked) {
WebContents* contents = web_contents();
if (!contents) {
// The WebContents has already disconnected.
return;
}
// RenderViewHost may be NULL during shutdown.
content::RenderViewHost* host = contents->GetRenderViewHost();
if (host) {
host->SetIgnoreInputEvents(blocked);
host->Send(new ChromeViewMsg_SetVisuallyDeemphasized(
host->GetRoutingID(), blocked));
}
if (delegate_)
delegate_->SetWebContentsBlocked(contents, blocked);
}
bool WebContentsModalDialogManager::IsShowingDialog() const {
return dialog_count() > 0;
}
void WebContentsModalDialogManager::FocusTopmostDialog() {
DCHECK(dialog_count());
native_manager_->FocusDialog(*dialog_begin());
}
content::WebContents* WebContentsModalDialogManager::GetWebContents() const {
return web_contents();
}
void WebContentsModalDialogManager::WillClose(
NativeWebContentsModalDialog dialog) {
WebContentsModalDialogList::iterator i(
std::find(child_dialogs_.begin(),
child_dialogs_.end(),
dialog));
bool removed_topmost_dialog = i == child_dialogs_.begin();
if (i != child_dialogs_.end())
child_dialogs_.erase(i);
if (child_dialogs_.empty()) {
BlockWebContentsInteraction(false);
} else {
if (removed_topmost_dialog && !closing_all_dialogs_)
native_manager_->ShowDialog(child_dialogs_[0]);
BlockWebContentsInteraction(true);
}
}
void WebContentsModalDialogManager::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(type == content::NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED);
if (child_dialogs_.empty())
return;
bool visible = *content::Details<bool>(details).ptr();
if (visible)
native_manager_->ShowDialog(child_dialogs_[0]);
else
native_manager_->HideDialog(child_dialogs_[0]);
}
WebContentsModalDialogManager::WebContentsModalDialogManager(
content::WebContents* web_contents)
: content::WebContentsObserver(web_contents),
delegate_(NULL),
native_manager_(
ALLOW_THIS_IN_INITIALIZER_LIST(CreateNativeManager(this))),
closing_all_dialogs_(false) {
DCHECK(native_manager_);
registrar_.Add(this,
content::NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED,
content::Source<content::WebContents>(web_contents));
}
void WebContentsModalDialogManager::CloseAllDialogs() {
closing_all_dialogs_ = true;
// Clear out any dialogs since we are leaving this page entirely. To ensure
// that we iterate over every element in child_dialogs_ we need to use a copy
// of child_dialogs_. Otherwise if closing a dialog causes child_dialogs_ to
// be modified, we could end up skipping some elements.
WebContentsModalDialogList child_dialogs_copy(child_dialogs_);
for (WebContentsModalDialogList::iterator it = child_dialogs_copy.begin();
it != child_dialogs_copy.end(); ++it) {
native_manager_->CloseDialog(*it);
BlockWebContentsInteraction(false);
}
closing_all_dialogs_ = false;
}
void WebContentsModalDialogManager::DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
// Close constrained windows if necessary.
if (!net::RegistryControlledDomainService::SameDomainOrHost(
details.previous_url, details.entry->GetURL()))
CloseAllDialogs();
}
void WebContentsModalDialogManager::DidGetIgnoredUIEvent() {
if (dialog_count())
native_manager_->FocusDialog(*dialog_begin());
}
void WebContentsModalDialogManager::WebContentsDestroyed(WebContents* tab) {
// First cleanly close all child dialogs.
// TODO(mpcomplete): handle case if MaybeCloseChildWindows() already asked
// some of these to close. CloseAllDialogs is async, so it might get called
// twice before it runs.
CloseAllDialogs();
}
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