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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_ | 5 #ifndef CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_ |
| 6 #define CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_ | 6 #define CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_ |
| 7 | 7 |
| 8 #include "third_party/WebKit/public/web/WebRange.h" | 8 #include "third_party/WebKit/public/web/WebRange.h" |
| 9 #include "url/gurl.h" | 9 #include "url/gurl.h" |
| 10 | 10 |
| 11 namespace WebKit { | 11 namespace blink { |
| 12 class WebHitTestResult; | 12 class WebHitTestResult; |
| 13 } | 13 } |
| 14 | 14 |
| 15 namespace content { | 15 namespace content { |
| 16 | 16 |
| 17 // Base class for text-based content detectors. | 17 // Base class for text-based content detectors. |
| 18 class ContentDetector { | 18 class ContentDetector { |
| 19 public: | 19 public: |
| 20 // Holds the content detection results. | 20 // Holds the content detection results. |
| 21 struct Result { | 21 struct Result { |
| 22 Result(); | 22 Result(); |
| 23 Result(const WebKit::WebRange& content_boundaries, | 23 Result(const blink::WebRange& content_boundaries, |
| 24 const std::string& text, | 24 const std::string& text, |
| 25 const GURL& intent_url); | 25 const GURL& intent_url); |
| 26 ~Result(); | 26 ~Result(); |
| 27 | 27 |
| 28 bool valid; | 28 bool valid; |
| 29 WebKit::WebRange content_boundaries; | 29 blink::WebRange content_boundaries; |
| 30 std::string text; // Processed text of the content. | 30 std::string text; // Processed text of the content. |
| 31 GURL intent_url; // URL of the intent that should process this content. | 31 GURL intent_url; // URL of the intent that should process this content. |
| 32 }; | 32 }; |
| 33 | 33 |
| 34 virtual ~ContentDetector() {} | 34 virtual ~ContentDetector() {} |
| 35 | 35 |
| 36 // Returns a WebKit range delimiting the contents found around the tapped | 36 // Returns a WebKit range delimiting the contents found around the tapped |
| 37 // position. If no content is found a null range will be returned. | 37 // position. If no content is found a null range will be returned. |
| 38 Result FindTappedContent(const WebKit::WebHitTestResult& hit_test); | 38 Result FindTappedContent(const blink::WebHitTestResult& hit_test); |
| 39 | 39 |
| 40 protected: | 40 protected: |
| 41 ContentDetector() {} | 41 ContentDetector() {} |
| 42 | 42 |
| 43 // Parses the input string defined by the begin/end iterators returning true | 43 // Parses the input string defined by the begin/end iterators returning true |
| 44 // if the desired content is found. The start and end positions relative to | 44 // if the desired content is found. The start and end positions relative to |
| 45 // the input iterators are returned in start_pos and end_pos. | 45 // the input iterators are returned in start_pos and end_pos. |
| 46 // The end position is assumed to be non-inclusive. | 46 // The end position is assumed to be non-inclusive. |
| 47 virtual bool FindContent(const string16::const_iterator& begin, | 47 virtual bool FindContent(const string16::const_iterator& begin, |
| 48 const string16::const_iterator& end, | 48 const string16::const_iterator& end, |
| 49 size_t* start_pos, | 49 size_t* start_pos, |
| 50 size_t* end_pos, | 50 size_t* end_pos, |
| 51 std::string* content_text) = 0; | 51 std::string* content_text) = 0; |
| 52 | 52 |
| 53 // Returns the intent URL that should process the content, if any. | 53 // Returns the intent URL that should process the content, if any. |
| 54 virtual GURL GetIntentURL(const std::string& content_text) = 0; | 54 virtual GURL GetIntentURL(const std::string& content_text) = 0; |
| 55 | 55 |
| 56 // Returns the maximum length of text to be extracted around the tapped | 56 // Returns the maximum length of text to be extracted around the tapped |
| 57 // position in order to search for content. | 57 // position in order to search for content. |
| 58 virtual size_t GetMaximumContentLength() = 0; | 58 virtual size_t GetMaximumContentLength() = 0; |
| 59 | 59 |
| 60 WebKit::WebRange FindContentRange(const WebKit::WebHitTestResult& hit_test, | 60 blink::WebRange FindContentRange(const blink::WebHitTestResult& hit_test, |
| 61 std::string* content_text); | 61 std::string* content_text); |
| 62 | 62 |
| 63 DISALLOW_COPY_AND_ASSIGN(ContentDetector); | 63 DISALLOW_COPY_AND_ASSIGN(ContentDetector); |
| 64 }; | 64 }; |
| 65 | 65 |
| 66 } // namespace content | 66 } // namespace content |
| 67 | 67 |
| 68 #endif // CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_ | 68 #endif // CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_ |
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