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// Copyright 2014 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_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_
#define CHROME_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "components/error_page/renderer/net_error_helper_core.h"
#include "gin/arguments.h"
#include "gin/wrappable.h"
namespace content {
class RenderFrame;
}
// This class makes various helper functions available to the
// error page loaded by NetErrorHelper. It is bound to the JavaScript
// window.errorPageController object.
class NetErrorPageController : public gin::Wrappable<NetErrorPageController> {
public:
static gin::WrapperInfo kWrapperInfo;
// Interface used to notify creator of user actions invoked on the error page.
class Delegate {
public:
// Button press notification from error page.
virtual void ButtonPressed(
error_page::NetErrorHelperCore::Button button) = 0;
// Called when a link with the given tracking ID is pressed.
virtual void TrackClick(int tracking_id) = 0;
protected:
Delegate();
virtual ~Delegate();
DISALLOW_COPY_AND_ASSIGN(Delegate);
};
// Will invoke methods on |delegate| in response to user actions taken on the
// error page. May call delegate methods even after the page has been
// navigated away from, so it is recommended consumers make sure the weak
// pointers are destroyed in response to navigations.
static void Install(content::RenderFrame* render_frame,
base::WeakPtr<Delegate> delegate);
private:
explicit NetErrorPageController(base::WeakPtr<Delegate> delegate);
~NetErrorPageController() override;
// Execute a "Show saved copy" button click.
bool ShowSavedCopyButtonClick();
// Execute a button click to show the list of all offline pages.
bool ShowOfflinePagesButtonClick();
// Execute a "Reload" button click.
bool ReloadButtonClick();
// Execute a "Details" button click.
bool DetailsButtonClick();
// Track easter egg plays.
bool TrackEasterEgg();
// Execute a "Diagnose Errors" button click.
bool DiagnoseErrorsButtonClick();
// Track "Show cached copy" button clicks.
bool TrackCachedCopyButtonClick();
// Track a click when the page has suggestions from the navigation correction
// service.
bool TrackClick(const gin::Arguments& args);
// Used internally by other button click methods.
bool ButtonClick(error_page::NetErrorHelperCore::Button button);
// gin::WrappableBase
gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
v8::Isolate* isolate) override;
base::WeakPtr<Delegate> delegate_;
DISALLOW_COPY_AND_ASSIGN(NetErrorPageController);
};
#endif // CHROME_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_
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