| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SPELLCHECK_SPELL_CHECK_REQUESTER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SPELLCHECK_SPELL_CHECK_REQUESTER_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/core/dom/element.h" |
| #include "third_party/blink/renderer/core/dom/range.h" |
| #include "third_party/blink/renderer/core/editing/forward.h" |
| #include "third_party/blink/renderer/core/editing/spellcheck/text_checking.h" |
| #include "third_party/blink/renderer/platform/scheduler/public/post_cancellable_task.h" |
| #include "third_party/blink/renderer/platform/wtf/deque.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class LocalDOMWindow; |
| class SpellCheckRequester; |
| class WebTextCheckClient; |
| |
| class CORE_EXPORT SpellCheckRequest final |
| : public GarbageCollected<SpellCheckRequest> { |
| public: |
| static const int kUnrequestedTextCheckingSequence = -1; |
| |
| static SpellCheckRequest* Create(const EphemeralRange& checking_range, |
| int request_number); |
| |
| SpellCheckRequest(Range* checking_range, const String&, int request_number); |
| ~SpellCheckRequest(); |
| void Dispose(); |
| |
| Range* CheckingRange() const { return checking_range_; } |
| Element* RootEditableElement() const { return root_editable_element_; } |
| |
| void SetCheckerAndSequence(SpellCheckRequester*, int sequence); |
| int Sequence() const { return sequence_; } |
| String GetText() const { return text_; } |
| |
| bool IsValid() const; |
| void DidSucceed(const Vector<TextCheckingResult>&); |
| void DidCancel(); |
| |
| int RequestNumber() const { return request_number_; } |
| |
| void Trace(Visitor*) const; |
| |
| private: |
| Member<SpellCheckRequester> requester_; |
| Member<Range> checking_range_; |
| Member<Element> root_editable_element_; |
| int sequence_ = kUnrequestedTextCheckingSequence; |
| String text_; |
| int request_number_; |
| }; |
| |
| class CORE_EXPORT SpellCheckRequester final |
| : public GarbageCollected<SpellCheckRequester> { |
| public: |
| explicit SpellCheckRequester(LocalDOMWindow&); |
| ~SpellCheckRequester(); |
| void Trace(Visitor*) const; |
| |
| // Returns true if a request is initiated. Returns false otherwise. |
| bool RequestCheckingFor(const EphemeralRange&); |
| bool RequestCheckingFor(const EphemeralRange&, int request_num); |
| void CancelCheck(); |
| |
| int LastRequestSequence() const { return last_request_sequence_; } |
| |
| int LastProcessedSequence() const { return last_processed_sequence_; } |
| |
| // Called to clean up pending requests when no more checking is needed. For |
| // example, when document is closed. |
| void Deactivate(); |
| |
| private: |
| friend class SpellCheckRequest; |
| |
| WebTextCheckClient* GetTextCheckerClient() const; |
| void TimerFiredToProcessQueuedRequest(); |
| void InvokeRequest(SpellCheckRequest*); |
| void EnqueueRequest(SpellCheckRequest*); |
| bool EnsureValidRequestQueueFor(int sequence); |
| void DidCheckSucceed(int sequence, const Vector<TextCheckingResult>&); |
| void DidCheckCancel(int sequence); |
| void DidCheck(int sequence); |
| |
| void ClearProcessingRequest(); |
| |
| Member<LocalDOMWindow> window_; |
| |
| int last_request_sequence_; |
| int last_processed_sequence_; |
| |
| TaskHandle timer_to_process_queued_request_; |
| |
| Member<SpellCheckRequest> processing_request_; |
| |
| typedef HeapDeque<Member<SpellCheckRequest>> RequestQueue; |
| RequestQueue request_queue_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SpellCheckRequester); |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SPELLCHECK_SPELL_CHECK_REQUESTER_H_ |