Initial checkin of the HTML downloads UI. It's not yet complete (lacking interface polish). But is enough for us to begin removing the native UI.ojan, please review downloads.htmlpaul, please review everything else

Review URL: http://codereview.chromium.org/20110

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@10050 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 123 insertions, 0 deletions

diff --git a/chrome/browser/dom_ui/downloads_ui.h b/chrome/browser/dom_ui/downloads_ui.h
new file mode 100644
index 0000000..9209000
--- /dev/null
+++ b/chrome/browser/dom_ui/downloads_ui.h
@@ -0,0 +1,123 @@
+// Copyright (c) 2006-2008 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_DOM_UI_DOWNLOADS_UI_H_
+#define CHROME_BROWSER_DOM_UI_DOWNLOADS_UI_H_
+
+#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
+#include "chrome/browser/dom_ui/dom_ui.h"
+#include "chrome/browser/dom_ui/dom_ui_contents.h"
+#include "chrome/browser/download/download_manager.h"
+
+class GURL;
+
+class DownloadsUIHTMLSource : public ChromeURLDataManager::DataSource {
+ public:
+  DownloadsUIHTMLSource();
+
+  // Called when the network layer has requested a resource underneath
+  // the path we registered.
+  virtual void StartDataRequest(const std::string& path, int request_id);
+  virtual std::string GetMimeType(const std::string&) const {
+    return "text/html";
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DownloadsUIHTMLSource);
+};
+
+// The handler for Javascript messages related to the "downloads" view,
+// also observes changes to the download manager.
+class DownloadsDOMHandler : public DOMMessageHandler,
+                            public DownloadManager::Observer,
+                            public DownloadItem::Observer {
+ public:
+  explicit DownloadsDOMHandler(DOMUI* dom_ui, DownloadManager* dlm);
+  virtual ~DownloadsDOMHandler();
+
+  void Init();
+
+  // DownloadItem::Observer interface
+  virtual void OnDownloadUpdated(DownloadItem* download);
+
+  // DownloadManager::Observer interface
+  virtual void ModelChanged();
+  virtual void SetDownloads(std::vector<DownloadItem*>& downloads);
+
+  // Callback for the "getDownloads" message.
+  void HandleGetDownloads(const Value* value);
+
+  // Callback for the "openFile" message - opens the file in the shell.
+  void HandleOpenFile(const Value* value);
+
+  // Callback for the "drag" message - initiates a file object drag.
+  void HandleDrag(const Value* value);
+
+  // Callback for the "saveDangerous" message - specifies that the user
+  // wishes to save a dangerous file.
+  void HandleSaveDangerous(const Value* value);
+
+  // Callback for the "discardDangerous" message - specifies that the user
+  // wishes to discard (remove) a dangerous file.
+  void HandleDiscardDangerous(const Value* value);
+
+  // Callback for the "show" message - shows the file in explorer.
+  void HandleShow(const Value* value);
+
+  // Callback for the "pause" message - pauses the file download.
+  void HandlePause(const Value* value);
+
+  // Callback for the "cancel" message - cancels the download.
+  void HandleCancel(const Value* value);
+
+ private:
+  // Send the current list of downloads to the page.
+  void SendCurrentDownloads();
+
+  // Creates a representation of a download in a format that the downloads
+  // HTML page can understand.
+  DictionaryValue* CreateDownloadItemValue(DownloadItem* download, int id);
+
+  // Clear all download items and their observers.
+  void ClearDownloadItems();
+
+  // Return the download that corresponds to a given id.
+  DownloadItem* GetDownloadById(int id);
+
+  // Return the download that is referred to in a given value.
+  DownloadItem* GetDownloadByValue(const Value* value);
+
+  // Current search text.
+  std::wstring search_text_;
+
+  // Our model
+  DownloadManager* download_manager_;
+
+  // The current set of visible DownloadItems for this view received from the
+  // DownloadManager. DownloadManager owns the DownloadItems. The vector is
+  // kept in order, sorted by ascending start time.
+  typedef std::vector<DownloadItem*> OrderedDownloads;
+  OrderedDownloads download_items_;
+
+  DISALLOW_COPY_AND_ASSIGN(DownloadsDOMHandler);
+};
+
+class DownloadsUI : public DOMUI {
+ public:
+  explicit DownloadsUI(DOMUIContents* contents);
+
+  // Return the URL for the front page of this UI.
+  static GURL GetBaseURL();
+
+  // DOMUI Implementation
+  virtual void Init();
+
+ private:
+  DOMUIContents* contents_;
+
+  DISALLOW_COPY_AND_ASSIGN(DownloadsUI);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_DOWNLOADS_UI_H_
+