// Copyright (c) 2011 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 "chrome/browser/infobars/insecure_content_infobar_delegate.h"

#include "base/metrics/histogram.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/common/render_messages.h"
#include "chrome/grit/generated_resources.h"
#include "components/content_settings/content/common/content_settings_messages.h"
#include "components/google/core/browser/google_util.h"
#include "components/infobars/core/infobar.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "grit/components_strings.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/page_transition_types.h"


// static
void InsecureContentInfoBarDelegate::Create(InfoBarService* infobar_service) {
  UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
                            DISPLAY_INFOBAR_SHOWN, NUM_EVENTS);

  scoped_ptr<infobars::InfoBar> new_infobar(
      infobar_service->CreateConfirmInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
          new InsecureContentInfoBarDelegate())));

  for (size_t i = 0; i < infobar_service->infobar_count(); ++i) {
    infobars::InfoBar* old_infobar = infobar_service->infobar_at(i);
    InsecureContentInfoBarDelegate* delegate =
        old_infobar->delegate()->AsInsecureContentInfoBarDelegate();
    if (delegate != nullptr) {
      infobar_service->ReplaceInfoBar(old_infobar, new_infobar.Pass());
      return;
    }
  }

  infobar_service->AddInfoBar(new_infobar.Pass());
}

InsecureContentInfoBarDelegate::InsecureContentInfoBarDelegate()
    : ConfirmInfoBarDelegate() {
}

InsecureContentInfoBarDelegate::~InsecureContentInfoBarDelegate() {
}

void InsecureContentInfoBarDelegate::InfoBarDismissed() {
  UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
                            DISPLAY_INFOBAR_DISMISSED, NUM_EVENTS);
  ConfirmInfoBarDelegate::InfoBarDismissed();
}

InsecureContentInfoBarDelegate*
    InsecureContentInfoBarDelegate::AsInsecureContentInfoBarDelegate() {
  return this;
}

base::string16 InsecureContentInfoBarDelegate::GetMessageText() const {
  return l10n_util::GetStringUTF16(IDS_BLOCKED_DISPLAYING_INSECURE_CONTENT);
}

base::string16 InsecureContentInfoBarDelegate::GetButtonLabel(
    InfoBarButton button) const {
  return l10n_util::GetStringUTF16(button == BUTTON_OK ?
      IDS_BLOCK_INSECURE_CONTENT_BUTTON : IDS_ALLOW_INSECURE_CONTENT_BUTTON);
}

// OK button is labelled "don't load".  It triggers Accept(), but really
// means stay secure, so do nothing but count the event and dismiss.
bool InsecureContentInfoBarDelegate::Accept() {
  UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
                            DISPLAY_USER_DID_NOT_LOAD, NUM_EVENTS);
  return true;
}

// Cancel button is labelled "load anyways".  It triggers Cancel(), but really
// means become insecure, so do the work of reloading the page.
bool InsecureContentInfoBarDelegate::Cancel() {
  UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
                            DISPLAY_USER_OVERRIDE, NUM_EVENTS);

  content::WebContents* web_contents =
      InfoBarService::WebContentsFromInfoBar(infobar());
  web_contents->SendToAllFrames(
      new ChromeViewMsg_SetAllowDisplayingInsecureContent(
          MSG_ROUTING_NONE, true));
  web_contents->GetMainFrame()->Send(new ChromeViewMsg_ReloadFrame(
      web_contents->GetMainFrame()->GetRoutingID()));
  return true;
}

base::string16 InsecureContentInfoBarDelegate::GetLinkText() const {
  return l10n_util::GetStringUTF16(IDS_LEARN_MORE);
}

bool InsecureContentInfoBarDelegate::LinkClicked(
    WindowOpenDisposition disposition) {
  InfoBarService::WebContentsFromInfoBar(infobar())->OpenURL(
      content::OpenURLParams(
          GURL("https://support.google.com/chrome/answer/1342714"),
          content::Referrer(),
          (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
          ui::PAGE_TRANSITION_LINK, false));
  return false;
}