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| 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_RENDERER_SPELLCHECKER_SPELLCHECK_PROVIDER_H_ | |
| 6 #define CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_PROVIDER_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/id_map.h" | |
| 14 #include "base/macros.h" | |
| 15 #include "content/public/renderer/render_view_observer.h" | |
| 16 #include "content/public/renderer/render_view_observer_tracker.h" | |
| 17 #include "third_party/WebKit/public/web/WebSpellCheckClient.h" | |
| 18 | |
| 19 class RenderView; | |
| 20 class SpellCheck; | |
| 21 class SpellCheckMarker; | |
| 22 struct SpellCheckResult; | |
| 23 | |
| 24 namespace blink { | |
| 25 class WebString; | |
| 26 class WebTextCheckingCompletion; | |
| 27 struct WebTextCheckingResult; | |
| 28 } | |
| 29 | |
| 30 // This class deals with invoking browser-side spellcheck mechanism | |
| 31 // which is done asynchronously. | |
| 32 class SpellCheckProvider | |
| 33 : public content::RenderViewObserver, | |
| 34 public content::RenderViewObserverTracker<SpellCheckProvider>, | |
| 35 public blink::WebSpellCheckClient { | |
| 36 public: | |
| 37 typedef IDMap<blink::WebTextCheckingCompletion> WebTextCheckCompletions; | |
| 38 | |
| 39 SpellCheckProvider(content::RenderView* render_view, | |
| 40 SpellCheck* spellcheck); | |
| 41 ~SpellCheckProvider() override; | |
| 42 | |
| 43 // Requests async spell and grammar checker to the platform text | |
| 44 // checker, which is available on the browser process. | |
| 45 void RequestTextChecking( | |
| 46 const base::string16& text, | |
| 47 blink::WebTextCheckingCompletion* completion, | |
| 48 const std::vector<SpellCheckMarker>& markers); | |
| 49 | |
| 50 // The number of ongoing IPC requests. | |
| 51 size_t pending_text_request_size() const { | |
| 52 return text_check_completions_.size(); | |
| 53 } | |
| 54 | |
| 55 // Replace shared spellcheck data. | |
| 56 void set_spellcheck(SpellCheck* spellcheck) { spellcheck_ = spellcheck; } | |
| 57 | |
| 58 // Enables document-wide spellchecking. | |
| 59 void EnableSpellcheck(bool enabled); | |
| 60 | |
| 61 // RenderViewObserver implementation. | |
| 62 bool OnMessageReceived(const IPC::Message& message) override; | |
| 63 void FocusedNodeChanged(const blink::WebNode& node) override; | |
| 64 | |
| 65 private: | |
| 66 friend class TestingSpellCheckProvider; | |
| 67 | |
| 68 // Tries to satisfy a spell check request from the cache in |last_request_|. | |
| 69 // Returns true (and cancels/finishes the completion) if it can, false | |
| 70 // if the provider should forward the query on. | |
| 71 bool SatisfyRequestFromCache(const base::string16& text, | |
| 72 blink::WebTextCheckingCompletion* completion); | |
| 73 | |
| 74 // RenderViewObserver implementation. | |
| 75 void OnDestruct() override; | |
| 76 | |
| 77 // blink::WebSpellCheckClient implementation. | |
| 78 void spellCheck( | |
| 79 const blink::WebString& text, | |
| 80 int& offset, | |
| 81 int& length, | |
| 82 blink::WebVector<blink::WebString>* optional_suggestions) override; | |
| 83 void checkTextOfParagraph( | |
| 84 const blink::WebString& text, | |
| 85 blink::WebTextCheckingTypeMask mask, | |
| 86 blink::WebVector<blink::WebTextCheckingResult>* results) override; | |
| 87 | |
| 88 void requestCheckingOfText( | |
| 89 const blink::WebString& text, | |
| 90 const blink::WebVector<uint32_t>& markers, | |
| 91 const blink::WebVector<unsigned>& marker_offsets, | |
| 92 blink::WebTextCheckingCompletion* completion) override; | |
| 93 | |
| 94 void showSpellingUI(bool show) override; | |
| 95 bool isShowingSpellingUI() override; | |
| 96 void updateSpellingUIWithMisspelledWord( | |
| 97 const blink::WebString& word) override; | |
| 98 | |
| 99 #if !defined(USE_BROWSER_SPELLCHECKER) | |
| 100 void OnRespondSpellingService( | |
| 101 int identifier, | |
| 102 bool succeeded, | |
| 103 const base::string16& text, | |
| 104 const std::vector<SpellCheckResult>& results); | |
| 105 #endif | |
| 106 | |
| 107 // Returns whether |text| has word characters, i.e. whether a spellchecker | |
| 108 // needs to check this text. | |
| 109 bool HasWordCharacters(const base::string16& text, int index) const; | |
| 110 | |
| 111 #if defined(USE_BROWSER_SPELLCHECKER) | |
| 112 void OnAdvanceToNextMisspelling(); | |
| 113 void OnRespondTextCheck( | |
| 114 int identifier, | |
| 115 const base::string16& line, | |
| 116 const std::vector<SpellCheckResult>& results); | |
| 117 void OnToggleSpellPanel(bool is_currently_visible); | |
| 118 #endif | |
| 119 | |
| 120 // Holds ongoing spellchecking operations, assigns IDs for the IPC routing. | |
| 121 WebTextCheckCompletions text_check_completions_; | |
| 122 | |
| 123 // The last text sent to the browser process to spellcheck it and its | |
| 124 // spellchecking results. | |
| 125 base::string16 last_request_; | |
| 126 blink::WebVector<blink::WebTextCheckingResult> last_results_; | |
| 127 | |
| 128 // True if the browser is showing the spelling panel for us. | |
| 129 bool spelling_panel_visible_; | |
| 130 | |
| 131 // Weak pointer to shared (per RenderView) spellcheck data. | |
| 132 SpellCheck* spellcheck_; | |
| 133 | |
| 134 DISALLOW_COPY_AND_ASSIGN(SpellCheckProvider); | |
| 135 }; | |
| 136 | |
| 137 #endif // CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_PROVIDER_H_ | |
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Chromium Code Reviews
Issue 2159283003:
[WIP][DO NOT LAND] Componentize spellcheck
Base URL: https://chromium.googlesource.com/chromium/src.git@master