chrome/browser/ui/pdf/chrome_pdf_web_contents_helper_client.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/pdf/chrome_pdf_web_contents_helper_client.h"
   6
   7 #include "chrome/browser/download/download_stats.h"
   8 #include "chrome/browser/ui/browser.h"
   9 #include "chrome/browser/ui/browser_finder.h"
  10 #include "chrome/browser/ui/browser_window.h"
  11 #include "chrome/browser/ui/location_bar/location_bar.h"
  12 #include "chrome/browser/ui/pdf/pdf_unsupported_feature.h"
  13 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
  14 #include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
  15
  16 namespace {
  17
  18 content::WebContents* GetWebContentsToUse(
  19     content::WebContents* web_contents) {
  20   // If we're viewing the PDF in a MimeHandlerViewGuest, use its embedder
  21   // WebContents.
  22   auto guest_view =
  23       extensions::MimeHandlerViewGuest::FromWebContents(web_contents);
  24   if (guest_view)
  25     return guest_view->embedder_web_contents();
  26   return web_contents;
  27 }
  28
  29 }  // namespace
  30
  31 ChromePDFWebContentsHelperClient::ChromePDFWebContentsHelperClient() {
  32 }
  33
  34 ChromePDFWebContentsHelperClient::~ChromePDFWebContentsHelperClient() {
  35 }
  36
  37 void ChromePDFWebContentsHelperClient::UpdateLocationBar(
  38     content::WebContents* contents) {
  39   Browser* browser = chrome::FindBrowserWithWebContents(contents);
  40   if (!browser)
  41     return;
  42
  43   BrowserWindow* window = browser->window();
  44   if (!window)
  45     return;
  46
  47   LocationBar* location_bar = window->GetLocationBar();
  48   if (!location_bar)
  49     return;
  50
  51   location_bar->UpdateOpenPDFInReaderPrompt();
  52 }
  53
  54 void ChromePDFWebContentsHelperClient::UpdateContentRestrictions(
  55     content::WebContents* contents,
  56     int content_restrictions) {
  57   CoreTabHelper* core_tab_helper =
  58       CoreTabHelper::FromWebContents(GetWebContentsToUse(contents));
  59   // |core_tab_helper| is NULL for WebViewGuest.
  60   if (core_tab_helper)
  61     core_tab_helper->UpdateContentRestrictions(content_restrictions);
  62 }
  63
  64 void ChromePDFWebContentsHelperClient::OnPDFHasUnsupportedFeature(
  65     content::WebContents* contents) {
  66   PDFHasUnsupportedFeature(GetWebContentsToUse(contents));
  67 }
  68
  69 void ChromePDFWebContentsHelperClient::OnSaveURL(
  70     content::WebContents* contents) {
  71   RecordDownloadSource(DOWNLOAD_INITIATED_BY_PDF_SAVE);
  72 }