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// Copyright 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 "content/browser/frame_host/navigator_impl.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/frame_host/navigation_controller_impl.h"
#include "content/browser/frame_host/navigation_entry_impl.h"
#include "content/browser/frame_host/navigator_delegate.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/site_instance_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/invalidate_type.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/common/url_constants.h"
namespace content {
NavigatorImpl::NavigatorImpl(
NavigationControllerImpl* navigation_controller,
NavigatorDelegate* delegate)
: controller_(navigation_controller),
delegate_(delegate) {
}
void NavigatorImpl::DidStartProvisionalLoad(
RenderFrameHostImpl* render_frame_host,
int64 frame_id,
int64 parent_frame_id,
bool is_main_frame,
const GURL& url) {
bool is_error_page = (url.spec() == kUnreachableWebDataURL);
bool is_iframe_srcdoc = (url.spec() == kAboutSrcDocURL);
GURL validated_url(url);
RenderProcessHost* render_process_host = render_frame_host->GetProcess();
RenderViewHost::FilterURL(render_process_host, false, &validated_url);
if (is_main_frame) {
// If there is no browser-initiated pending entry for this navigation and it
// is not for the error URL, create a pending entry using the current
// SiteInstance, and ensure the address bar updates accordingly. We don't
// know the referrer or extra headers at this point, but the referrer will
// be set properly upon commit.
NavigationEntryImpl* pending_entry =
NavigationEntryImpl::FromNavigationEntry(
controller_->GetPendingEntry());
bool has_browser_initiated_pending_entry = pending_entry &&
!pending_entry->is_renderer_initiated();
if (!has_browser_initiated_pending_entry && !is_error_page) {
NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
controller_->CreateNavigationEntry(validated_url,
content::Referrer(),
content::PAGE_TRANSITION_LINK,
true /* is_renderer_initiated */,
std::string(),
controller_->GetBrowserContext()));
entry->set_site_instance(
static_cast<SiteInstanceImpl*>(
render_frame_host->render_view_host()->GetSiteInstance()));
// TODO(creis): If there's a pending entry already, find a safe way to
// update it instead of replacing it and copying over things like this.
if (pending_entry) {
entry->set_transferred_global_request_id(
pending_entry->transferred_global_request_id());
entry->set_should_replace_entry(pending_entry->should_replace_entry());
entry->set_redirect_chain(pending_entry->redirect_chain());
}
controller_->SetPendingEntry(entry);
if (delegate_)
delegate_->NotifyChangedNavigationState(content::INVALIDATE_TYPE_URL);
}
}
if (delegate_) {
// Notify the observer about the start of the provisional load.
delegate_->DidStartProvisionalLoad(
render_frame_host, frame_id, parent_frame_id, is_main_frame,
validated_url, is_error_page, is_iframe_srcdoc);
}
}
} // namespace content
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