chrome/browser/ui/webui/omnibox/omnibox_ui_handler.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_WEBUI_OMNIBOX_OMNIBOX_UI_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_OMNIBOX_OMNIBOX_UI_HANDLER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/time/time.h"
  12 #include "chrome/browser/ui/webui/mojo_web_ui_handler.h"
  13 #include "chrome/browser/ui/webui/omnibox/omnibox.mojom.h"
  14 #include "components/omnibox/browser/autocomplete_controller_delegate.h"
  15 #include "components/omnibox/browser/autocomplete_input.h"
  16 #include "components/omnibox/browser/autocomplete_match.h"
  17 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  18
  19 class AutocompleteController;
  20 class Profile;
  21
  22 // Implementation of OmniboxUIHandlerMojo.  StartOmniboxQuery() calls to a
  23 // private AutocompleteController. It also listens for updates from the
  24 // AutocompleteController to OnResultChanged() and passes those results to
  25 // the OmniboxPage.
  26 class OmniboxUIHandler : public AutocompleteControllerDelegate,
  27                          public OmniboxUIHandlerMojo,
  28                          public MojoWebUIHandler {
  29  public:
  30   // OmniboxUIHandler is deleted when the supplied pipe is destroyed.
  31   OmniboxUIHandler(Profile* profile,
  32                    mojo::InterfaceRequest<OmniboxUIHandlerMojo> request);
  33   ~OmniboxUIHandler() override;
  34
  35   // AutocompleteControllerDelegate overrides:
  36   void OnResultChanged(bool default_match_changed) override;
  37
  38   // OmniboxUIHandlerMojo overrides:
  39   void StartOmniboxQuery(const mojo::String& input_string,
  40                          int32_t cursor_position,
  41                          bool prevent_inline_autocomplete,
  42                          bool prefer_keyword,
  43                          int32_t page_classification,
  44                          OmniboxPagePtr page) override;
  45
  46  private:
  47   // Looks up whether the hostname is a typed host (i.e., has received
  48   // typed visits).  Return true if the lookup succeeded; if so, the
  49   // value of |is_typed_host| is set appropriately.
  50   bool LookupIsTypedHost(const base::string16& host, bool* is_typed_host) const;
  51
  52   // Re-initializes the AutocompleteController in preparation for the
  53   // next query.
  54   void ResetController();
  55
  56   // The omnibox AutocompleteController that collects/sorts/dup-
  57   // eliminates the results as they come in.
  58   scoped_ptr<AutocompleteController> controller_;
  59
  60   // Time the user's input was sent to the omnibox to start searching.
  61   // Needed because we also pass timing information in the object we
  62   // hand back to the javascript.
  63   base::Time time_omnibox_started_;
  64
  65   // The input used when starting the AutocompleteController.
  66   AutocompleteInput input_;
  67
  68   // Handle back to the page by which we can pass results.
  69   OmniboxPagePtr page_;
  70
  71   // The Profile* handed to us in our constructor.
  72   Profile* profile_;
  73
  74   mojo::StrongBinding<OmniboxUIHandlerMojo> binding_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(OmniboxUIHandler);
  77 };
  78
  79 #endif  // CHROME_BROWSER_UI_WEBUI_OMNIBOX_OMNIBOX_UI_HANDLER_H_