chrome/test/base/find_in_page_observer.h

   1 // Copyright 2013 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_TEST_BASE_FIND_IN_PAGE_OBSERVER_H_
   6 #define CHROME_TEST_BASE_FIND_IN_PAGE_OBSERVER_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "content/public/browser/notification_observer.h"
  10 #include "content/public/browser/notification_registrar.h"
  11 #include "ui/gfx/rect.h"
  12
  13 namespace content {
  14 class MessageLoopRunner;
  15 class WebContents;
  16 }
  17
  18 namespace ui_test_utils {
  19
  20 // FindInPageNotificationObserver allows blocking UI thread until find results
  21 // are available. Typical usage:
  22 // FindInPageWchar();
  23 // FindInPageNotificationObserver observer(tab);
  24 // observer.Wait();
  25
  26 // Always construct FindInPageNotificationObserver AFTER initiating the search.
  27 // It captures the current search ID in constructor and waits for it only.
  28 class FindInPageNotificationObserver : public content::NotificationObserver {
  29  public:
  30   explicit FindInPageNotificationObserver(content::WebContents* parent_tab);
  31   virtual ~FindInPageNotificationObserver();
  32
  33   void Wait();
  34
  35   int active_match_ordinal() const { return active_match_ordinal_; }
  36   int number_of_matches() const { return number_of_matches_; }
  37   gfx::Rect selection_rect() const { return selection_rect_; }
  38
  39  private:
  40   virtual void Observe(int type,
  41                        const content::NotificationSource& source,
  42                        const content::NotificationDetails& details) OVERRIDE;
  43
  44   content::NotificationRegistrar registrar_;
  45   // We will at some point (before final update) be notified of the ordinal and
  46   // we need to preserve it so we can send it later.
  47   int active_match_ordinal_;
  48   int number_of_matches_;
  49   gfx::Rect selection_rect_;
  50   // The id of the current find request, obtained from WebContents. Allows us
  51   // to monitor when the search completes.
  52   int current_find_request_id_;
  53   scoped_refptr<content::MessageLoopRunner> message_loop_runner_;
  54
  55   bool seen_; // true after transition to expected state has been seen
  56   bool running_; // indicates whether message loop is running
  57
  58   DISALLOW_COPY_AND_ASSIGN(FindInPageNotificationObserver);
  59 };
  60
  61 }  // namespace ui_test_utils
  62
  63 #endif  // CHROME_TEST_BASE_FIND_IN_PAGE_OBSERVER_H_