Initial Implementation of Download Notification

chrome/browser/download/download_commands.h

+// Copyright 2015 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_DOWNLOAD_DOWNLOAD_COMMANDS_H_
+#define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_COMMANDS_H_
+
+#include "base/strings/string16.h"
+
+#include "chrome/browser/ui/browser.h"
+#include "content/public/browser/download_item.h"
+#include "content/public/browser/page_navigator.h"
+#include "ui/gfx/image/image.h"
+
+class DownloadCommands {
+ public:
+  enum Command {
+    SHOW_IN_FOLDER = 1,   // Open a folder view window with the item selected.
+    OPEN_WHEN_COMPLETE,   // Open the download when it's finished.
+    ALWAYS_OPEN_TYPE,     // Default this file extension to always open.
+    PLATFORM_OPEN,        // Open using platform handler.
+    CANCEL,               // Cancel the download.
+    PAUSE,                // Pause a download.
+    RESUME,               // Resume a download.
+    DISCARD,              // Discard the malicious download.
+    KEEP,                 // Keep the malicious download.
+    RETRY,                // Retry the download.
+    LEARN_MORE_SCANNING,  // Show information about download scanning.
+    LEARN_MORE_INTERRUPTED,  // Show information about interrupted downloads.
+  };
+
+  // |download_item| must outlive DownloadCommands.
+  explicit DownloadCommands(content::DownloadItem* download_item);
+  virtual ~DownloadCommands() {}
+
+  gfx::Image GetCommandIcon(Command command);
+
+  bool IsCommandEnabled(Command command) const;
+  bool IsCommandChecked(Command command) const;
+  bool IsCommandVisible(Command command) const;
+  void ExecuteCommand(Command command);
+
+#if defined(OS_WIN) || defined(OS_LINUX) || \
+    (defined(OS_MACOSX) && !defined(OS_IOS))
+  bool IsDownloadPdf() const;
+  bool CanOpenPdfInSystemViewer() const;
+#endif
+
+ private:
+  Browser* GetBrowser() const;
+
+  int GetCommandIconId(Command command);
+
+  int GetAlwaysOpenStringId() const;
+
+  content::DownloadItem* const download_item_;
+};
+
+#endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_COMMANDS_H_