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// Copyright (c) 2010 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.
#ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_NAVIGATION_OBSERVER_H_
#define CHROME_BROWSER_TAB_CONTENTS_WEB_NAVIGATION_OBSERVER_H_
#include "chrome/browser/tab_contents/navigation_controller.h"
struct ViewHostMsg_FrameNavigate_Params;
// An observer API implemented by classes which are interested in various page
// load events from TabContents.
// TODO(pink): Is it worth having a bitfield where certain clients can only
// register for certain events? Is the extra function call worth the added pain
// on the caller to build the bitfield?
class WebNavigationObserver {
public:
// For removing PasswordManager deps...
virtual void NavigateToPendingEntry() { }
virtual void DidNavigateMainFramePostCommit(
const NavigationController::LoadCommittedDetails& details,
const ViewHostMsg_FrameNavigate_Params& params) { }
virtual void DidNavigateAnyFramePostCommit(
const NavigationController::LoadCommittedDetails& details,
const ViewHostMsg_FrameNavigate_Params& params) { }
virtual void DidStartLoading() { }
virtual void DidStopLoading() { }
// TODO(beng): These should move from here once PasswordManager is able to
// establish its own private communication protocol to the
// renderer.
virtual void PasswordFormsFound(
const std::vector<webkit_glue::PasswordForm>& forms) { }
virtual void PasswordFormsVisible(
const std::vector<webkit_glue::PasswordForm>& visible_forms) { }
#if 0
// For unifying with delegate...
// Notifies the delegate that this contents is starting or is done loading
// some resource. The delegate should use this notification to represent
// loading feedback. See TabContents::is_loading()
virtual void LoadingStateChanged(TabContents* contents) { }
// Called to inform the delegate that the tab content's navigation state
// changed. The |changed_flags| indicates the parts of the navigation state
// that have been updated, and is any combination of the
// |TabContents::InvalidateTypes| bits.
virtual void NavigationStateChanged(const TabContents* source,
unsigned changed_flags) { }
#endif
};
#endif // CHROME_BROWSER_TAB_CONTENTS_WEB_NAVIGATION_OBSERVER_H_
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