chrome/browser/ui/search_engines/edit_search_engine_controller.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_SEARCH_ENGINES_EDIT_SEARCH_ENGINE_CONTROLLER_H_
   6 #define CHROME_BROWSER_UI_SEARCH_ENGINES_EDIT_SEARCH_ENGINE_CONTROLLER_H_
   7
   8 #include <string>
   9
  10 #include "base/strings/string16.h"
  11 #include "ui/gfx/native_widget_types.h"
  12
  13 class Profile;
  14 class TemplateURL;
  15
  16 class EditSearchEngineControllerDelegate {
  17  public:
  18   // Invoked from the EditSearchEngineController when the user accepts the
  19   // edits. NOTE: |template_url| is the value supplied to
  20   // EditSearchEngineController's constructor, and may be NULL. A NULL value
  21   // indicates a new TemplateURL should be created rather than modifying an
  22   // existing TemplateURL.
  23   virtual void OnEditedKeyword(TemplateURL* template_url,
  24                                const base::string16& title,
  25                                const base::string16& keyword,
  26                                const std::string& url) = 0;
  27
  28  protected:
  29   virtual ~EditSearchEngineControllerDelegate() {}
  30 };
  31
  32 // EditSearchEngineController provides the core platform independent logic
  33 // for the Edit Search Engine dialog.
  34 class EditSearchEngineController {
  35  public:
  36   // The |template_url| and/or |edit_keyword_delegate| may be NULL.
  37   EditSearchEngineController(
  38       TemplateURL* template_url,
  39       EditSearchEngineControllerDelegate* edit_keyword_delegate,
  40       Profile* profile);
  41   ~EditSearchEngineController() {}
  42
  43   // Returns true if the value of |title_input| is a valid search engine name.
  44   bool IsTitleValid(const base::string16& title_input) const;
  45
  46   // Returns true if the value of |url_input| represents a valid search engine
  47   // URL. The URL is valid if it contains no search terms and is a valid
  48   // url, or if it contains a search term and replacing that search term with a
  49   // character results in a valid url.
  50   bool IsURLValid(const std::string& url_input) const;
  51
  52   // Returns true if the value of |keyword_input| represents a valid keyword.
  53   // The keyword is valid if it is non-empty and does not conflict with an
  54   // existing entry. NOTE: this is just the keyword, not the title and url.
  55   bool IsKeywordValid(const base::string16& keyword_input) const;
  56
  57   // Completes the add or edit of a search engine.
  58   void AcceptAddOrEdit(const base::string16& title_input,
  59                        const base::string16& keyword_input,
  60                        const std::string& url_input);
  61
  62   // Deletes an unused TemplateURL, if its add was cancelled and it's not
  63   // already owned by the TemplateURLService.
  64   void CleanUpCancelledAdd();
  65
  66   // Accessors.
  67   const TemplateURL* template_url() const { return template_url_; }
  68   Profile* profile() const { return profile_; }
  69
  70  private:
  71   // Fixes up and returns the URL the user has input. The returned URL is
  72   // suitable for use by TemplateURL.
  73   std::string GetFixedUpURL(const std::string& url_input) const;
  74
  75   // The TemplateURL we're displaying information for. It may be NULL. If we
  76   // have a keyword_editor_view, we assume that this TemplateURL is already in
  77   // the TemplateURLService; if not, we assume it isn't.
  78   TemplateURL* template_url_;
  79
  80   // We may have been created by this, in which case we will call back to it on
  81   // success to add/modify the entry.  May be NULL.
  82   EditSearchEngineControllerDelegate* edit_keyword_delegate_;
  83
  84   // Profile whose TemplateURLService we're modifying.
  85   Profile* profile_;
  86
  87   DISALLOW_COPY_AND_ASSIGN(EditSearchEngineController);
  88 };
  89
  90 #endif  // CHROME_BROWSER_UI_SEARCH_ENGINES_EDIT_SEARCH_ENGINE_CONTROLLER_H_