Prototype version of the first-run dialog for Windows 8

chrome/browser/shell_integration.h

 // 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.
 
 #ifndef CHROME_BROWSER_SHELL_INTEGRATION_H_
 #define CHROME_BROWSER_SHELL_INTEGRATION_H_
 #pragma once
 
 #include <string>
 
@@ skipping 144 matching lines @@
   // querying if Chrome is the default browser or the default handler
   // application for a url protocol, and communicates the state and result of
   // a request.
   enum DefaultWebClientUIState {
     STATE_PROCESSING,
     STATE_NOT_DEFAULT,
     STATE_IS_DEFAULT,
     STATE_UNKNOWN
   };
 
+  // The result of invoking SetAsDefault operation from within a
+  // DefaultWebClientWorker implementation. Note that from this result we
+  // cannot really infere if Chrome indeed become the default, because

[grt (UTC plus 2), 2012/06/19 20:43:09]

infere -> infer

[motek., 2012/06/20 16:02:15]

This is gone.

+  // in the interactive mode user could ended up chosing a different client.
+  enum SetDefaultWebClientResult {
+    RESULT_SET_DEFAULT_OK,
+    RESULT_SET_DEFAULT_FAILED_OR_CANCELLED,
+    RESULT_SET_DEFAULT_UNDEFINED,
+  };
+
   class DefaultWebClientObserver {
    public:
     virtual ~DefaultWebClientObserver() {}
     // Updates the UI state to reflect the current default browser state.
-    virtual void SetDefaultWebClientUIState(DefaultWebClientUIState state) = 0;
+    virtual void SetDefaultWebClientUIState(
+        DefaultWebClientUIState state,
+        SetDefaultWebClientResult call_result) = 0;
     // Observer classes that return true to OwnedByWorker are automatically
     // freed by the worker when they are no longer needed.
     virtual bool IsOwnedByWorker() { return false; }
     // An observer can permit or decline set-as-default operation if it
     // requires triggering user interaction.
     virtual bool IsInteractiveSetDefaultPermitted() { return false; }
   };
 
   //  Helper objects that handle checking if Chrome is the default browser
   //  or application for a url protocol on Windows and Linux, and also setting
@@ skipping 21 matching lines @@
    protected:
     friend class base::RefCountedThreadSafe<DefaultWebClientWorker>;
 
     virtual ~DefaultWebClientWorker() {}
 
    private:
     // Function that performs the check.
     virtual DefaultWebClientState CheckIsDefault() = 0;
 
     // Function that sets Chrome as the default web client.
-    virtual void SetAsDefault(bool interactive_permitted) = 0;
+    virtual SetDefaultWebClientResult SetAsDefault(
+        bool interactive_permitted) = 0;
+
+    // Private version takes a call result to be eventually forwarded to the
+    // observer.
+    void StartCheckIsDefault(SetDefaultWebClientResult call_result);
 
     // Function that handles performing the check on the file thread. This
     // function is posted as a task onto the file thread, where it performs
     // the check. When the check has finished the CompleteCheckIsDefault
     // function is posted to the UI thread, where the result is sent back to
     // the observer.
-    void ExecuteCheckIsDefault();
+    void ExecuteCheckIsDefault(SetDefaultWebClientResult call_result);
 
     // Function that handles setting Chrome as the default web client on the
     // file thread. This function is posted as a task onto the file thread.
     // Once it is finished the CompleteSetAsDefault function is posted to the
     // UI thread which will check the status of Chrome as the default, and
     // send this to the observer.
     void ExecuteSetAsDefault();
 
     // Communicate results to the observer. This function is posted as a task
     // onto the UI thread by the ExecuteCheckIsDefault function running in the
     // file thread.
-    void CompleteCheckIsDefault(DefaultWebClientState state);
+    void CompleteCheckIsDefault(DefaultWebClientState state,
+                                SetDefaultWebClientResult call_result);
 
     // When the action to set Chrome as the default has completed this function
     // is run. It is posted as a task back onto the UI thread by the
     // ExecuteSetAsDefault function running in the file thread. This function
     // will the start the check process, which, if an observer is present,
     // reports to it the new status.
-    void CompleteSetAsDefault();
+    void CompleteSetAsDefault(SetDefaultWebClientResult call_result);
 
     // Updates the UI in our associated view with the current default web
     // client state.
-    void UpdateUI(DefaultWebClientState state);
+    void UpdateUI(DefaultWebClientState state,
+                  SetDefaultWebClientResult call_result);
 
     DefaultWebClientObserver* observer_;
 
     DISALLOW_COPY_AND_ASSIGN(DefaultWebClientWorker);
   };
 
   // Worker for checking and setting the default browser.
   class DefaultBrowserWorker : public DefaultWebClientWorker {
    public:
     explicit DefaultBrowserWorker(DefaultWebClientObserver* observer);
 
    private:
     virtual ~DefaultBrowserWorker() {}
 
     // Check if Chrome is the default browser.
     virtual DefaultWebClientState CheckIsDefault() OVERRIDE;
 
     // Set Chrome as the default browser.
-    virtual void SetAsDefault(bool interactive_permitted) OVERRIDE;
+    virtual SetDefaultWebClientResult SetAsDefault(
+        bool interactive_permitted) OVERRIDE;
 
     DISALLOW_COPY_AND_ASSIGN(DefaultBrowserWorker);
   };
 
   // Worker for checking and setting the default client application
   // for a given protocol. A different worker instance is needed for each
   // protocol you are interested in, so to check or set the default for
   // multiple protocols you should use multiple worker objects.
   class DefaultProtocolClientWorker : public DefaultWebClientWorker {
    public:
     DefaultProtocolClientWorker(DefaultWebClientObserver* observer,
                                 const std::string& protocol);
 
     const std::string& protocol() const { return protocol_; }
 
    protected:
     virtual ~DefaultProtocolClientWorker() {}
 
    private:
     // Check is Chrome is the default handler for this protocol.
     virtual DefaultWebClientState CheckIsDefault() OVERRIDE;
 
     // Set Chrome as the default handler for this protocol.
-    virtual void SetAsDefault(bool interactive_permitted) OVERRIDE;
+    virtual SetDefaultWebClientResult SetAsDefault(
+        bool interactive_permitted) OVERRIDE;
 
     std::string protocol_;
 
     DISALLOW_COPY_AND_ASSIGN(DefaultProtocolClientWorker);
   };
 };
 
 #endif  // CHROME_BROWSER_SHELL_INTEGRATION_H_