[iOS] Upstream ios/chrome/browser/find_in_page

ios/chrome/browser/find_in_page/find_in_page_model.h

+// Copyright 2011 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 IOS_CHROME_BROWSER_FIND_IN_PAGE_FIND_IN_PAGE_MODEL_H_
+#define IOS_CHROME_BROWSER_FIND_IN_PAGE_FIND_IN_PAGE_MODEL_H_
+
+#import <UIKit/UIKit.h>
+#include "base/mac/scoped_nsobject.h"
+
+// This is a simplified version of find_tab_helper.cc.
+@interface FindInPageModel : NSObject {
+ @private
+  // Should find in page be displayed.
+  BOOL enabled_;
+  // The current search string.
+  base::scoped_nsobject<NSString> text_;
+  // The number of matches for |text_|
+  NSUInteger matches_;
+  // The currently higlighted index.
+  NSUInteger currentIndex_;
+  // The content offset needed to display the |currentIndex_| match.
+  CGPoint currentPoint_;
+}
+
+@property(nonatomic, readwrite, assign) BOOL enabled;
+@property(nonatomic, readonly) NSString* text;
+@property(nonatomic, readonly) NSUInteger matches;
+@property(nonatomic, readonly) NSUInteger currentIndex;
+@property(nonatomic, readonly) CGPoint currentPoint;
+
+// Update the query string and the number of matches.
+- (void)updateQuery:(NSString*)query matches:(NSUInteger)matches;
+// Update the current match index and its found position.
+- (void)updateIndex:(NSInteger)index atPoint:(CGPoint)point;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_FIND_IN_PAGE_FIND_IN_PAGE_MODEL_H_