The Tor Browser / file comparison
comparison: content/media/TextTrackRegion.h
content/media/TextTrackRegion.h
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- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:46bc31c1df50 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 et tw=78: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_dom_TextTrackRegion_h | |
| 8 #define mozilla_dom_TextTrackRegion_h | |
| 9 | |
| 10 #include "nsAutoPtr.h" | |
| 11 #include "nsCycleCollectionParticipant.h" | |
| 12 #include "nsString.h" | |
| 13 #include "nsWrapperCache.h" | |
| 14 #include "mozilla/ErrorResult.h" | |
| 15 #include "mozilla/dom/TextTrack.h" | |
| 16 #include "mozilla/Preferences.h" | |
| 17 | |
| 18 namespace mozilla { | |
| 19 namespace dom { | |
| 20 | |
| 21 class GlobalObject; | |
| 22 class TextTrack; | |
| 23 | |
| 24 class TextTrackRegion MOZ_FINAL : public nsISupports, | |
| 25 public nsWrapperCache | |
| 26 { | |
| 27 public: | |
| 28 | |
| 29 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 30 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TextTrackRegion) | |
| 31 | |
| 32 static bool RegionsEnabled(JSContext* cx, JSObject* obj) | |
| 33 { | |
| 34 return Preferences::GetBool("media.webvtt.enabled") && | |
| 35 Preferences::GetBool("media.webvtt.regions.enabled"); | |
| 36 } | |
| 37 | |
| 38 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 39 | |
| 40 nsISupports* GetParentObject() const | |
| 41 { | |
| 42 return mParent; | |
| 43 } | |
| 44 | |
| 45 TextTrackRegion(nsISupports* aGlobal); | |
| 46 | |
| 47 /** WebIDL Methods. */ | |
| 48 | |
| 49 static already_AddRefed<TextTrackRegion> | |
| 50 Constructor(const GlobalObject& aGlobal, ErrorResult& aRv); | |
| 51 | |
| 52 double Lines() const | |
| 53 { | |
| 54 return mLines; | |
| 55 } | |
| 56 | |
| 57 void SetLines(double aLines) | |
| 58 { | |
| 59 mLines = aLines; | |
| 60 } | |
| 61 | |
| 62 double Width() const | |
| 63 { | |
| 64 return mWidth; | |
| 65 } | |
| 66 | |
| 67 void SetWidth(double aWidth, ErrorResult& aRv) | |
| 68 { | |
| 69 if (!InvalidValue(aWidth, aRv)) { | |
| 70 mWidth = aWidth; | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 double RegionAnchorX() const | |
| 75 { | |
| 76 return mRegionAnchorX; | |
| 77 } | |
| 78 | |
| 79 void SetRegionAnchorX(double aVal, ErrorResult& aRv) | |
| 80 { | |
| 81 if (!InvalidValue(aVal, aRv)) { | |
| 82 mRegionAnchorX = aVal; | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 double RegionAnchorY() const | |
| 87 { | |
| 88 return mRegionAnchorY; | |
| 89 } | |
| 90 | |
| 91 void SetRegionAnchorY(double aVal, ErrorResult& aRv) | |
| 92 { | |
| 93 if (!InvalidValue(aVal, aRv)) { | |
| 94 mRegionAnchorY = aVal; | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 double ViewportAnchorX() const | |
| 99 { | |
| 100 return mViewportAnchorX; | |
| 101 } | |
| 102 | |
| 103 void SetViewportAnchorX(double aVal, ErrorResult& aRv) | |
| 104 { | |
| 105 if (!InvalidValue(aVal, aRv)) { | |
| 106 mViewportAnchorX = aVal; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 double ViewportAnchorY() const | |
| 111 { | |
| 112 return mViewportAnchorY; | |
| 113 } | |
| 114 | |
| 115 void SetViewportAnchorY(double aVal, ErrorResult& aRv) | |
| 116 { | |
| 117 if (!InvalidValue(aVal, aRv)) { | |
| 118 mViewportAnchorY = aVal; | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 void GetScroll(nsAString& aScroll) const | |
| 123 { | |
| 124 aScroll = mScroll; | |
| 125 } | |
| 126 | |
| 127 void SetScroll(const nsAString& aScroll, ErrorResult& aRv) | |
| 128 { | |
| 129 if (!aScroll.EqualsLiteral("") && !aScroll.EqualsLiteral("up")) { | |
| 130 aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR); | |
| 131 return; | |
| 132 } | |
| 133 | |
| 134 mScroll = aScroll; | |
| 135 } | |
| 136 | |
| 137 /** end WebIDL Methods. */ | |
| 138 | |
| 139 | |
| 140 // Helper to aid copying of a given TextTrackRegion's width, lines, | |
| 141 // anchor, viewport and scroll values. | |
| 142 void CopyValues(TextTrackRegion& aRegion); | |
| 143 | |
| 144 // -----helpers------- | |
| 145 const nsAString& Scroll() const | |
| 146 { | |
| 147 return mScroll; | |
| 148 } | |
| 149 | |
| 150 private: | |
| 151 nsCOMPtr<nsISupports> mParent; | |
| 152 double mWidth; | |
| 153 long mLines; | |
| 154 double mRegionAnchorX; | |
| 155 double mRegionAnchorY; | |
| 156 double mViewportAnchorX; | |
| 157 double mViewportAnchorY; | |
| 158 nsString mScroll; | |
| 159 | |
| 160 // Helper to ensure new value is in the range: 0.0% - 100.0%; throws | |
| 161 // an IndexSizeError otherwise. | |
| 162 inline bool InvalidValue(double aValue, ErrorResult& aRv) | |
| 163 { | |
| 164 if(aValue < 0.0 || aValue > 100.0) { | |
| 165 aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR); | |
| 166 return true; | |
| 167 } | |
| 168 | |
| 169 return false; | |
| 170 } | |
| 171 | |
| 172 }; | |
| 173 | |
| 174 } //namespace dom | |
| 175 } //namespace mozilla | |
| 176 | |
| 177 #endif //mozilla_dom_TextTrackRegion_h |
