content/media/TextTrackRegion.h@97036ab72558 (annotated)
content/media/TextTrackRegion.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim:set ts=2 sw=2 et tw=78: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef mozilla_dom_TextTrackRegion_h |
| michael@0 | 8 | #define mozilla_dom_TextTrackRegion_h |
| michael@0 | 9 | |
| michael@0 | 10 | #include "nsAutoPtr.h" |
| michael@0 | 11 | #include "nsCycleCollectionParticipant.h" |
| michael@0 | 12 | #include "nsString.h" |
| michael@0 | 13 | #include "nsWrapperCache.h" |
| michael@0 | 14 | #include "mozilla/ErrorResult.h" |
| michael@0 | 15 | #include "mozilla/dom/TextTrack.h" |
| michael@0 | 16 | #include "mozilla/Preferences.h" |
| michael@0 | 17 | |
| michael@0 | 18 | namespace mozilla { |
| michael@0 | 19 | namespace dom { |
| michael@0 | 20 | |
| michael@0 | 21 | class GlobalObject; |
| michael@0 | 22 | class TextTrack; |
| michael@0 | 23 | |
| michael@0 | 24 | class TextTrackRegion MOZ_FINAL : public nsISupports, |
| michael@0 | 25 | public nsWrapperCache |
| michael@0 | 26 | { |
| michael@0 | 27 | public: |
| michael@0 | 28 | |
| michael@0 | 29 | NS_DECL_CYCLE_COLLECTING_ISUPPORTS |
| michael@0 | 30 | NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TextTrackRegion) |
| michael@0 | 31 | |
| michael@0 | 32 | static bool RegionsEnabled(JSContext* cx, JSObject* obj) |
| michael@0 | 33 | { |
| michael@0 | 34 | return Preferences::GetBool("media.webvtt.enabled") && |
| michael@0 | 35 | Preferences::GetBool("media.webvtt.regions.enabled"); |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; |
| michael@0 | 39 | |
| michael@0 | 40 | nsISupports* GetParentObject() const |
| michael@0 | 41 | { |
| michael@0 | 42 | return mParent; |
| michael@0 | 43 | } |
| michael@0 | 44 | |
| michael@0 | 45 | TextTrackRegion(nsISupports* aGlobal); |
| michael@0 | 46 | |
| michael@0 | 47 | /** WebIDL Methods. */ |
| michael@0 | 48 | |
| michael@0 | 49 | static already_AddRefed<TextTrackRegion> |
| michael@0 | 50 | Constructor(const GlobalObject& aGlobal, ErrorResult& aRv); |
| michael@0 | 51 | |
| michael@0 | 52 | double Lines() const |
| michael@0 | 53 | { |
| michael@0 | 54 | return mLines; |
| michael@0 | 55 | } |
| michael@0 | 56 | |
| michael@0 | 57 | void SetLines(double aLines) |
| michael@0 | 58 | { |
| michael@0 | 59 | mLines = aLines; |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | double Width() const |
| michael@0 | 63 | { |
| michael@0 | 64 | return mWidth; |
| michael@0 | 65 | } |
| michael@0 | 66 | |
| michael@0 | 67 | void SetWidth(double aWidth, ErrorResult& aRv) |
| michael@0 | 68 | { |
| michael@0 | 69 | if (!InvalidValue(aWidth, aRv)) { |
| michael@0 | 70 | mWidth = aWidth; |
| michael@0 | 71 | } |
| michael@0 | 72 | } |
| michael@0 | 73 | |
| michael@0 | 74 | double RegionAnchorX() const |
| michael@0 | 75 | { |
| michael@0 | 76 | return mRegionAnchorX; |
| michael@0 | 77 | } |
| michael@0 | 78 | |
| michael@0 | 79 | void SetRegionAnchorX(double aVal, ErrorResult& aRv) |
| michael@0 | 80 | { |
| michael@0 | 81 | if (!InvalidValue(aVal, aRv)) { |
| michael@0 | 82 | mRegionAnchorX = aVal; |
| michael@0 | 83 | } |
| michael@0 | 84 | } |
| michael@0 | 85 | |
| michael@0 | 86 | double RegionAnchorY() const |
| michael@0 | 87 | { |
| michael@0 | 88 | return mRegionAnchorY; |
| michael@0 | 89 | } |
| michael@0 | 90 | |
| michael@0 | 91 | void SetRegionAnchorY(double aVal, ErrorResult& aRv) |
| michael@0 | 92 | { |
| michael@0 | 93 | if (!InvalidValue(aVal, aRv)) { |
| michael@0 | 94 | mRegionAnchorY = aVal; |
| michael@0 | 95 | } |
| michael@0 | 96 | } |
| michael@0 | 97 | |
| michael@0 | 98 | double ViewportAnchorX() const |
| michael@0 | 99 | { |
| michael@0 | 100 | return mViewportAnchorX; |
| michael@0 | 101 | } |
| michael@0 | 102 | |
| michael@0 | 103 | void SetViewportAnchorX(double aVal, ErrorResult& aRv) |
| michael@0 | 104 | { |
| michael@0 | 105 | if (!InvalidValue(aVal, aRv)) { |
| michael@0 | 106 | mViewportAnchorX = aVal; |
| michael@0 | 107 | } |
| michael@0 | 108 | } |
| michael@0 | 109 | |
| michael@0 | 110 | double ViewportAnchorY() const |
| michael@0 | 111 | { |
| michael@0 | 112 | return mViewportAnchorY; |
| michael@0 | 113 | } |
| michael@0 | 114 | |
| michael@0 | 115 | void SetViewportAnchorY(double aVal, ErrorResult& aRv) |
| michael@0 | 116 | { |
| michael@0 | 117 | if (!InvalidValue(aVal, aRv)) { |
| michael@0 | 118 | mViewportAnchorY = aVal; |
| michael@0 | 119 | } |
| michael@0 | 120 | } |
| michael@0 | 121 | |
| michael@0 | 122 | void GetScroll(nsAString& aScroll) const |
| michael@0 | 123 | { |
| michael@0 | 124 | aScroll = mScroll; |
| michael@0 | 125 | } |
| michael@0 | 126 | |
| michael@0 | 127 | void SetScroll(const nsAString& aScroll, ErrorResult& aRv) |
| michael@0 | 128 | { |
| michael@0 | 129 | if (!aScroll.EqualsLiteral("") && !aScroll.EqualsLiteral("up")) { |
| michael@0 | 130 | aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR); |
| michael@0 | 131 | return; |
| michael@0 | 132 | } |
| michael@0 | 133 | |
| michael@0 | 134 | mScroll = aScroll; |
| michael@0 | 135 | } |
| michael@0 | 136 | |
| michael@0 | 137 | /** end WebIDL Methods. */ |
| michael@0 | 138 | |
| michael@0 | 139 | |
| michael@0 | 140 | // Helper to aid copying of a given TextTrackRegion's width, lines, |
| michael@0 | 141 | // anchor, viewport and scroll values. |
| michael@0 | 142 | void CopyValues(TextTrackRegion& aRegion); |
| michael@0 | 143 | |
| michael@0 | 144 | // -----helpers------- |
| michael@0 | 145 | const nsAString& Scroll() const |
| michael@0 | 146 | { |
| michael@0 | 147 | return mScroll; |
| michael@0 | 148 | } |
| michael@0 | 149 | |
| michael@0 | 150 | private: |
| michael@0 | 151 | nsCOMPtr<nsISupports> mParent; |
| michael@0 | 152 | double mWidth; |
| michael@0 | 153 | long mLines; |
| michael@0 | 154 | double mRegionAnchorX; |
| michael@0 | 155 | double mRegionAnchorY; |
| michael@0 | 156 | double mViewportAnchorX; |
| michael@0 | 157 | double mViewportAnchorY; |
| michael@0 | 158 | nsString mScroll; |
| michael@0 | 159 | |
| michael@0 | 160 | // Helper to ensure new value is in the range: 0.0% - 100.0%; throws |
| michael@0 | 161 | // an IndexSizeError otherwise. |
| michael@0 | 162 | inline bool InvalidValue(double aValue, ErrorResult& aRv) |
| michael@0 | 163 | { |
| michael@0 | 164 | if(aValue < 0.0 || aValue > 100.0) { |
| michael@0 | 165 | aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR); |
| michael@0 | 166 | return true; |
| michael@0 | 167 | } |
| michael@0 | 168 | |
| michael@0 | 169 | return false; |
| michael@0 | 170 | } |
| michael@0 | 171 | |
| michael@0 | 172 | }; |
| michael@0 | 173 | |
| michael@0 | 174 | } //namespace dom |
| michael@0 | 175 | } //namespace mozilla |
| michael@0 | 176 | |
| michael@0 | 177 | #endif //mozilla_dom_TextTrackRegion_h |
