This CL adds a confirmation box when closing the browser with in-progress downloads.

BUG=1028
TEST=Start several bug downloads, close the browser. A dialog shows up to warn you are about to lose the downloads. Try the wait and continue button. Try again with several windows, and in Incognito mode.
Review URL: http://codereview.chromium.org/62131

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13453 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 28 insertions, 0 deletions

diff --git a/chrome/browser/browser.h b/chrome/browser/browser.h
index 63b28d5..9db95d5 100644
--- a/chrome/browser/browser.h
+++ b/chrome/browser/browser.h
@@ -187,6 +187,14 @@ class Browser : public TabStripModelDelegate,
   // cleanup.
   void OnWindowClosing();
 
+  // In-progress download termination handling /////////////////////////////////
+
+  // Called when the user has decided whether to proceed or not with the browser
+  // closure.  |cancel_downloads| is true if the downloads should be canceled
+  // and the browser closed, false if the browser should stay open and the
+  // downloads running.
+  void InProgressDownloadResponse(bool cancel_downloads);
+
   // TabStripModel pass-thrus /////////////////////////////////////////////////
 
   TabStripModel* tabstrip_model() const {
@@ -551,6 +559,13 @@ class Browser : public TabStripModelDelegate,
   // successfully fired.
   void ClearUnloadState(TabContents* tab);
 
+  // In-progress download termination handling /////////////////////////////////
+
+  // Called when the window is closing to check if potential in-progress
+  // downloads should prevent it from closing.
+  // Returns true if the window can close, false otherwise.
+  bool CanCloseWithInProgressDownloads();
+
   // Assorted utility functions ///////////////////////////////////////////////
 
   // Retrieve the last active tabbed browser with the same profile as the
@@ -667,6 +682,19 @@ class Browser : public TabStripModelDelegate,
   // in preparation for closing the browser.
   bool is_attempting_to_close_browser_;
 
+  // In-progress download termination handling /////////////////////////////////
+
+  enum CancelDownloadConfirmationState {
+    NOT_PROMPTED,          // We have not asked the user.
+    WAITING_FOR_RESPONSE,  // We have asked the user and have not received a
+                           // reponse yet.
+    RESPONSE_RECEIVED      // The user was prompted and made a decision already.
+  };
+
+  // State used to figure-out whether we should prompt the user for confirmation
+  // when the browser is closed with in-progress downloads.
+  CancelDownloadConfirmationState cancel_download_confirmation_state_;
+
   /////////////////////////////////////////////////////////////////////////////
 
   // Override values for the bounds of the window and its maximized state.