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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 "content/browser/tab_contents/tab_contents_view_helper.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/common/view_messages.h"
#include "content/port/browser/render_widget_host_view_port.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/browser/web_contents_view.h"
using content::RenderWidgetHostView;
using content::RenderWidgetHostViewPort;
using content::WebContents;
TabContentsViewHelper::TabContentsViewHelper() {
registrar_.Add(this,
content::NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
content::NotificationService::AllBrowserContextsAndSources());
}
TabContentsViewHelper::~TabContentsViewHelper() {}
void TabContentsViewHelper::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(type, content::NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED);
RenderWidgetHost* host = content::Source<RenderWidgetHost>(source).ptr();
for (PendingWidgetViews::iterator i = pending_widget_views_.begin();
i != pending_widget_views_.end(); ++i) {
if (host->GetView() == i->second) {
pending_widget_views_.erase(i);
break;
}
}
}
TabContents* TabContentsViewHelper::CreateNewWindow(
WebContents* web_contents,
int route_id,
const ViewHostMsg_CreateWindow_Params& params) {
bool should_create = true;
if (web_contents->GetDelegate()) {
should_create = web_contents->GetDelegate()->ShouldCreateWebContents(
web_contents,
route_id,
params.window_container_type,
params.frame_name);
}
if (!should_create)
return NULL;
// We usually create the new window in the same BrowsingInstance (group of
// script-related windows), by passing in the current SiteInstance. However,
// if the opener is being suppressed, we create a new SiteInstance in its own
// BrowsingInstance.
scoped_refptr<content::SiteInstance> site_instance =
params.opener_suppressed ?
content::SiteInstance::Create(web_contents->GetBrowserContext()) :
web_contents->GetSiteInstance();
// Create the new web contents. This will automatically create the new
// WebContentsView. In the future, we may want to create the view separately.
TabContents* new_contents =
new TabContents(web_contents->GetBrowserContext(),
site_instance,
route_id,
static_cast<TabContents*>(web_contents),
NULL);
new_contents->set_opener_web_ui_type(
web_contents->GetWebUITypeForCurrentState());
if (params.opener_suppressed) {
// When the opener is suppressed, the original renderer cannot access the
// new window. As a result, we need to show and navigate the window here.
gfx::Rect initial_pos;
web_contents->AddNewContents(new_contents,
params.disposition,
initial_pos,
params.user_gesture);
content::OpenURLParams open_params(params.target_url, content::Referrer(),
CURRENT_TAB,
content::PAGE_TRANSITION_LINK,
true /* is_renderer_initiated */);
WebContents* opened_contents = new_contents->OpenURL(open_params);
DCHECK_EQ(new_contents, opened_contents);
return new_contents;
}
content::WebContentsView* new_view = new_contents->GetView();
// TODO(brettw): It seems bogus that we have to call this function on the
// newly created object and give it one of its own member variables.
new_view->CreateViewForWidget(new_contents->GetRenderViewHost());
// Save the created window associated with the route so we can show it later.
DCHECK_NE(MSG_ROUTING_NONE, route_id);
pending_contents_[route_id] = new_contents;
if (web_contents->GetDelegate())
web_contents->GetDelegate()->WebContentsCreated(web_contents,
params.opener_frame_id,
params.target_url,
new_contents);
return new_contents;
}
RenderWidgetHostView* TabContentsViewHelper::CreateNewWidget(
WebContents* web_contents,
int route_id,
bool is_fullscreen,
WebKit::WebPopupType popup_type) {
content::RenderProcessHost* process = web_contents->GetRenderProcessHost();
RenderWidgetHostImpl* widget_host =
new RenderWidgetHostImpl(process, route_id);
RenderWidgetHostViewPort* widget_view =
RenderWidgetHostViewPort::CreateViewForWidget(widget_host);
if (!is_fullscreen) {
// Popups should not get activated.
widget_view->SetPopupType(popup_type);
}
// Save the created widget associated with the route so we can show it later.
pending_widget_views_[route_id] = widget_view;
return widget_view;
}
TabContents* TabContentsViewHelper::GetCreatedWindow(int route_id) {
PendingContents::iterator iter = pending_contents_.find(route_id);
// Certain systems can block the creation of new windows. If we didn't succeed
// in creating one, just return NULL.
if (iter == pending_contents_.end()) {
return NULL;
}
TabContents* new_contents = iter->second;
pending_contents_.erase(route_id);
if (!new_contents->GetRenderProcessHost()->HasConnection() ||
!new_contents->GetRenderViewHost()->GetView())
return NULL;
// TODO(brettw): It seems bogus to reach into here and initialize the host.
static_cast<RenderViewHostImpl*>(new_contents->GetRenderViewHost())->Init();
return new_contents;
}
RenderWidgetHostView* TabContentsViewHelper::GetCreatedWidget(int route_id) {
PendingWidgetViews::iterator iter = pending_widget_views_.find(route_id);
if (iter == pending_widget_views_.end()) {
DCHECK(false);
return NULL;
}
RenderWidgetHostView* widget_host_view = iter->second;
pending_widget_views_.erase(route_id);
RenderWidgetHost* widget_host = widget_host_view->GetRenderWidgetHost();
if (!widget_host->GetProcess()->HasConnection()) {
// The view has gone away or the renderer crashed. Nothing to do.
return NULL;
}
return widget_host_view;
}
TabContents* TabContentsViewHelper::ShowCreatedWindow(
WebContents* web_contents,
int route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture) {
TabContents* contents = GetCreatedWindow(route_id);
if (contents) {
web_contents->AddNewContents(contents,
disposition,
initial_pos,
user_gesture);
}
return contents;
}
RenderWidgetHostView* TabContentsViewHelper::ShowCreatedWidget(
WebContents* web_contents,
int route_id,
bool is_fullscreen,
const gfx::Rect& initial_pos) {
if (web_contents->GetDelegate())
web_contents->GetDelegate()->RenderWidgetShowing();
RenderWidgetHostViewPort* widget_host_view =
RenderWidgetHostViewPort::FromRWHV(GetCreatedWidget(route_id));
if (is_fullscreen) {
widget_host_view->InitAsFullscreen(web_contents->GetRenderWidgetHostView());
} else {
widget_host_view->InitAsPopup(web_contents->GetRenderWidgetHostView(),
initial_pos);
}
RenderWidgetHostImpl::From(widget_host_view->GetRenderWidgetHost())->Init();
return widget_host_view;
}
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