Windows: Add an "Open in Adobe Reader" menu item for PDF files in the download shelf.

chrome/browser/download/download_shelf_context_menu.cc

 // 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 "chrome/browser/download/download_shelf_context_menu.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_crx_util.h"
 #include "chrome/browser/download/download_item_model.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/safe_browsing/download_protection_service.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/common/content_switches.h"
 #include "extensions/common/extension.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
+#if defined(OS_WIN)
+#include "chrome/browser/ui/pdf/adobe_reader_info_win.h"
+#endif
+
 using content::DownloadItem;
-using extensions::Extension;
 
 namespace {
 
 // Returns true if downloads resumption is enabled.
 bool IsDownloadResumptionEnabled() {
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
-  return command_line.HasSwitch(switches::kEnableDownloadResumption);
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableDownloadResumption);
 }
 
 }  // namespace
 
 DownloadShelfContextMenu::~DownloadShelfContextMenu() {
   DetachFromDownloadItem();
 }
 
 DownloadShelfContextMenu::DownloadShelfContextMenu(
     DownloadItem* download_item,
     content::PageNavigator* navigator)
     : download_item_(download_item),
       navigator_(navigator) {
   DCHECK(download_item_);
   download_item_->AddObserver(this);
+
+#if defined(OS_WIN)
+  is_pdf_reader_up_to_date_ = false;
+  if (IsDownloadPdf() && IsAdobeReaderDefaultPDFViewer())
+    is_pdf_reader_up_to_date_ = DownloadPrefs::IsAdobeReaderUpToDate();
+#endif  // defined(OS_WIN)
 }
 
 ui::SimpleMenuModel* DownloadShelfContextMenu::GetMenuModel() {
   ui::SimpleMenuModel* model = NULL;
 
   if (!download_item_)
     return NULL;
 
   DownloadItemModel download_model(download_item_);
   // We shouldn't be opening a context menu for a dangerous download, unless it
@@ skipping 33 matching lines @@
     case CANCEL:
       return !download_item_->IsDone();
     case TOGGLE_PAUSE:
       return !download_item_->IsDone();
     case DISCARD:
     case KEEP:
     case LEARN_MORE_SCANNING:
     case LEARN_MORE_INTERRUPTED:
       return true;
   }
+  NOTREACHED();
   return false;
 }
 
 bool DownloadShelfContextMenu::IsCommandIdChecked(int command_id) const {
   if (!download_item_)
     return false;
 
   switch (command_id) {
     case OPEN_WHEN_COMPLETE:
       return download_item_->GetOpenWhenComplete() ||
           download_crx_util::IsExtensionDownload(*download_item_);
     case ALWAYS_OPEN_TYPE:
+#if defined(OS_WIN)
+      if (CanOpenPdfInReader()) {
+        DownloadPrefs* prefs = DownloadPrefs::FromBrowserContext(
+            download_item_->GetBrowserContext());
+        return prefs->ShouldOpenPdfInAdobeReader();
+      }
+#endif
       return download_item_->ShouldOpenFileBasedOnExtension();
     case TOGGLE_PAUSE:
       return download_item_->IsPaused();
   }
   return false;
 }
 
 void DownloadShelfContextMenu::ExecuteCommand(int command_id, int event_flags) {
   if (!download_item_)
     return;
 
   switch (static_cast<ContextMenuCommands>(command_id)) {
     case SHOW_IN_FOLDER:
       download_item_->ShowDownloadInShell();
       break;
     case OPEN_WHEN_COMPLETE:
       download_item_->OpenDownload();
       break;
     case ALWAYS_OPEN_TYPE: {
+      bool is_checked = !IsCommandIdChecked(ALWAYS_OPEN_TYPE);
       DownloadPrefs* prefs = DownloadPrefs::FromBrowserContext(
           download_item_->GetBrowserContext());
+#if defined(OS_WIN)
+      if (CanOpenPdfInReader()) {
+        prefs->SetShouldOpenPdfInAdobeReader(is_checked);
+        return;
+      }
+#endif
       base::FilePath path = download_item_->GetTargetFilePath();
-      if (!IsCommandIdChecked(ALWAYS_OPEN_TYPE))
+      if (is_checked)
         prefs->EnableAutoOpenBasedOnExtension(path);
       else
         prefs->DisableAutoOpenBasedOnExtension(path);
       break;
     }
     case PLATFORM_OPEN:
       DownloadItemModel(download_item_).OpenUsingPlatformHandler();
       break;
     case CANCEL:
       download_item_->Cancel(true /* Cancelled by user */);
@@ skipping 51 matching lines @@
 base::string16 DownloadShelfContextMenu::GetLabelForCommandId(
     int command_id) const {
   switch (static_cast<ContextMenuCommands>(command_id)) {
     case SHOW_IN_FOLDER:
       return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_SHOW);
     case OPEN_WHEN_COMPLETE:
       if (download_item_ && !download_item_->IsDone())
         return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_OPEN_WHEN_COMPLETE);
       return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_OPEN);
     case ALWAYS_OPEN_TYPE:
-      return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_ALWAYS_OPEN_TYPE);
+      return l10n_util::GetStringUTF16(GetAlwaysOpenStringId());
     case PLATFORM_OPEN:
       return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_PLATFORM_OPEN);
     case CANCEL:
       return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_CANCEL);
     case TOGGLE_PAUSE:
       if (download_item_ &&
           download_item_->GetState() == DownloadItem::IN_PROGRESS &&
           !download_item_->IsPaused())
         return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_PAUSE_ITEM);
       return l10n_util::GetStringUTF16(IDS_DOWNLOAD_MENU_RESUME_ITEM);
@@ skipping 26 matching lines @@
 
 ui::SimpleMenuModel* DownloadShelfContextMenu::GetInProgressMenuModel() {
   if (in_progress_download_menu_model_)
     return in_progress_download_menu_model_.get();
 
   in_progress_download_menu_model_.reset(new ui::SimpleMenuModel(this));
 
   in_progress_download_menu_model_->AddCheckItemWithStringId(
       OPEN_WHEN_COMPLETE, IDS_DOWNLOAD_MENU_OPEN_WHEN_COMPLETE);
   in_progress_download_menu_model_->AddCheckItemWithStringId(
-      ALWAYS_OPEN_TYPE, IDS_DOWNLOAD_MENU_ALWAYS_OPEN_TYPE);
+      ALWAYS_OPEN_TYPE, GetAlwaysOpenStringId());
   in_progress_download_menu_model_->AddSeparator(ui::NORMAL_SEPARATOR);
   in_progress_download_menu_model_->AddItemWithStringId(
       TOGGLE_PAUSE, IDS_DOWNLOAD_MENU_PAUSE_ITEM);
   in_progress_download_menu_model_->AddItemWithStringId(
       SHOW_IN_FOLDER, IDS_DOWNLOAD_MENU_SHOW);
   in_progress_download_menu_model_->AddSeparator(ui::NORMAL_SEPARATOR);
   in_progress_download_menu_model_->AddItemWithStringId(
       CANCEL, IDS_DOWNLOAD_MENU_CANCEL);
 
   return in_progress_download_menu_model_.get();
 }
 
 ui::SimpleMenuModel* DownloadShelfContextMenu::GetFinishedMenuModel() {
   if (finished_download_menu_model_)
     return finished_download_menu_model_.get();
 
   finished_download_menu_model_.reset(new ui::SimpleMenuModel(this));
 
   finished_download_menu_model_->AddItemWithStringId(
       OPEN_WHEN_COMPLETE, IDS_DOWNLOAD_MENU_OPEN);
   finished_download_menu_model_->AddCheckItemWithStringId(
-      ALWAYS_OPEN_TYPE, IDS_DOWNLOAD_MENU_ALWAYS_OPEN_TYPE);
-  if (DownloadItemModel(download_item_).ShouldPreferOpeningInBrowser())
+      ALWAYS_OPEN_TYPE, GetAlwaysOpenStringId());
+  if (DownloadItemModel(download_item_).ShouldPreferOpeningInBrowser()) {
     finished_download_menu_model_->AddItemWithStringId(
         PLATFORM_OPEN, IDS_DOWNLOAD_MENU_PLATFORM_OPEN);
+  }
   finished_download_menu_model_->AddSeparator(ui::NORMAL_SEPARATOR);
   finished_download_menu_model_->AddItemWithStringId(
       SHOW_IN_FOLDER, IDS_DOWNLOAD_MENU_SHOW);
   finished_download_menu_model_->AddSeparator(ui::NORMAL_SEPARATOR);
   finished_download_menu_model_->AddItemWithStringId(
       CANCEL, IDS_DOWNLOAD_MENU_CANCEL);
 
   return finished_download_menu_model_.get();
 }
 
@@ skipping 37 matching lines @@
   maybe_malicious_download_menu_model_.reset(new ui::SimpleMenuModel(this));
 
   maybe_malicious_download_menu_model_->AddItemWithStringId(
       KEEP, IDS_DOWNLOAD_MENU_KEEP);
   maybe_malicious_download_menu_model_->AddSeparator(ui::NORMAL_SEPARATOR);
   maybe_malicious_download_menu_model_->AddItemWithStringId(
       LEARN_MORE_SCANNING, IDS_DOWNLOAD_MENU_LEARN_MORE_SCANNING);
   return maybe_malicious_download_menu_model_.get();
 }
 
-ui::SimpleMenuModel*
-DownloadShelfContextMenu::GetMaliciousMenuModel() {
+ui::SimpleMenuModel* DownloadShelfContextMenu::GetMaliciousMenuModel() {
   if (malicious_download_menu_model_)
     return malicious_download_menu_model_.get();
 
   malicious_download_menu_model_.reset(new ui::SimpleMenuModel(this));
 
   DownloadItemModel download_model(download_item_);
   malicious_download_menu_model_->AddItemWithStringId(
       LEARN_MORE_SCANNING, IDS_DOWNLOAD_MENU_LEARN_MORE_SCANNING);
 
   return malicious_download_menu_model_.get();
 }
+
+int DownloadShelfContextMenu::GetAlwaysOpenStringId() const {
+#if defined(OS_WIN)
+  if (CanOpenPdfInReader())
+    return IDS_DOWNLOAD_MENU_ALWAYS_OPEN_PDF_IN_READER;
+#endif
+  return IDS_DOWNLOAD_MENU_ALWAYS_OPEN_TYPE;
+}
+
+#if defined(OS_WIN)
+bool DownloadShelfContextMenu::IsDownloadPdf() const {
+  base::FilePath path = download_item_->GetTargetFilePath();
+  return path.Extension() == FILE_PATH_LITERAL(".pdf");

[asanka, 2014/06/12 16:50:55]

Nit: path.MatchesExtension(...)

[Lei Zhang, 2014/06/18 13:48:29]

Done.

+}
+
+bool DownloadShelfContextMenu::CanOpenPdfInReader() const {
+  return (is_pdf_reader_up_to_date_ && IsDownloadPdf());
+}
+#endif