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| 1 // Copyright (c) 2011 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 #include "chrome/browser/ui/cocoa/lookup_in_dictionary.h" |
| 6 |
| 7 #include "base/metrics/histogram.h" |
| 8 #include "base/singleton.h" |
| 9 #include "base/time.h" |
| 10 |
| 11 // The amount of time in milliseconds that the browser process will wait for a |
| 12 // response from the renderer. |
| 13 // TODO(rsesek): Using the histogram data, find the best upper-bound for this |
| 14 // value. |
| 15 const float kWaitTimeout = 1500; |
| 16 |
| 17 LookupInDictionary::LookupInDictionary() |
| 18 : character_index_(NSNotFound), |
| 19 lock_(), |
| 20 condition_(&lock_) { |
| 21 } |
| 22 |
| 23 // static |
| 24 LookupInDictionary* LookupInDictionary::GetInstance() { |
| 25 return Singleton<LookupInDictionary>::get(); |
| 26 } |
| 27 |
| 28 void LookupInDictionary::BeforeRequest() { |
| 29 lock_.Acquire(); |
| 30 character_index_ = NSNotFound; |
| 31 first_rect_ = NSZeroRect; |
| 32 substring_.reset(); |
| 33 } |
| 34 |
| 35 void LookupInDictionary::AfterRequest() { |
| 36 lock_.Release(); |
| 37 } |
| 38 |
| 39 NSUInteger LookupInDictionary::WaitForCharacterIndex() { |
| 40 base::TimeTicks start = base::TimeTicks::Now(); |
| 41 |
| 42 condition_.TimedWait(base::TimeDelta::FromMilliseconds(kWaitTimeout)); |
| 43 |
| 44 base::TimeDelta delta(base::TimeTicks::Now() - start); |
| 45 UMA_HISTOGRAM_TIMES("LookupInDictionary.CharacterIndex", |
| 46 delta * base::Time::kMicrosecondsPerMillisecond); |
| 47 |
| 48 return character_index_; |
| 49 } |
| 50 |
| 51 NSRect LookupInDictionary::WaitForFirstRect() { |
| 52 base::TimeTicks start = base::TimeTicks::Now(); |
| 53 |
| 54 condition_.TimedWait(base::TimeDelta::FromMilliseconds(kWaitTimeout)); |
| 55 |
| 56 base::TimeDelta delta(base::TimeTicks::Now() - start); |
| 57 UMA_HISTOGRAM_TIMES("LookupInDictionary.FirstRect", |
| 58 delta * base::Time::kMicrosecondsPerMillisecond); |
| 59 |
| 60 return first_rect_; |
| 61 } |
| 62 |
| 63 NSAttributedString* LookupInDictionary::WaitForSubstring() { |
| 64 base::TimeTicks start = base::TimeTicks::Now(); |
| 65 |
| 66 condition_.TimedWait(base::TimeDelta::FromMilliseconds(kWaitTimeout)); |
| 67 |
| 68 base::TimeDelta delta(base::TimeTicks::Now() - start); |
| 69 UMA_HISTOGRAM_TIMES("LookupInDictionary.Substring", |
| 70 delta * base::Time::kMicrosecondsPerMillisecond); |
| 71 |
| 72 return substring_.get(); |
| 73 } |
| 74 |
| 75 void LookupInDictionary::SetCharacterIndexAndSignal(NSUInteger index) { |
| 76 lock_.Acquire(); |
| 77 character_index_ = index; |
| 78 lock_.Release(); |
| 79 condition_.Signal(); |
| 80 } |
| 81 |
| 82 void LookupInDictionary::SetFirstRectAndSignal(NSRect first_rect) { |
| 83 lock_.Acquire(); |
| 84 first_rect_ = first_rect; |
| 85 lock_.Release(); |
| 86 condition_.Signal(); |
| 87 } |
| 88 |
| 89 void LookupInDictionary::SetSubstringAndSignal(NSAttributedString* string) { |
| 90 lock_.Acquire(); |
| 91 substring_.reset([string copy]); |
| 92 lock_.Release(); |
| 93 condition_.Signal(); |
| 94 } |
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