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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/public/browser/web_contents_observer.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/render_view_host.h"
namespace content {
WebContentsObserver::WebContentsObserver(WebContents* web_contents)
: web_contents_(NULL) {
Observe(web_contents);
}
WebContentsObserver::WebContentsObserver()
: web_contents_(NULL) {
}
WebContentsObserver::~WebContentsObserver() {
if (web_contents_)
web_contents_->RemoveObserver(this);
}
WebContents* WebContentsObserver::web_contents() const {
return web_contents_;
}
void WebContentsObserver::Observe(WebContents* web_contents) {
if (web_contents_)
web_contents_->RemoveObserver(this);
web_contents_ = static_cast<WebContentsImpl*>(web_contents);
if (web_contents_) {
web_contents_->AddObserver(this);
}
}
bool WebContentsObserver::OnMessageReceived(const IPC::Message& message) {
return false;
}
bool WebContentsObserver::Send(IPC::Message* message) {
if (!web_contents_ || !web_contents_->GetRenderViewHost()) {
delete message;
return false;
}
return web_contents_->GetRenderViewHost()->Send(message);
}
int WebContentsObserver::routing_id() const {
if (!web_contents_ || !web_contents_->GetRenderViewHost())
return MSG_ROUTING_NONE;
return web_contents_->GetRenderViewHost()->GetRoutingID();
}
void WebContentsObserver::WebContentsImplDestroyed() {
// Do cleanup so that 'this' can safely be deleted from WebContentsDestroyed.
web_contents_->RemoveObserver(this);
WebContentsImpl* contents = web_contents_;
web_contents_ = NULL;
WebContentsDestroyed(contents);
}
} // namespace content
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