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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 /** | 5 /** |
| 6 * @fileoverview A set of classes to support aural CSS. | 6 * @fileoverview A set of classes to support aural CSS. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 | 9 |
| 10 goog.provide('cvox.AuralProperty'); | 10 goog.provide('cvox.AuralProperty'); |
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| 48 */ | 48 */ |
| 49 cvox.AuralStyleConverter.identity = function(value) { | 49 cvox.AuralStyleConverter.identity = function(value) { |
| 50 return value; | 50 return value; |
| 51 }; | 51 }; |
| 52 | 52 |
| 53 | 53 |
| 54 /** | 54 /** |
| 55 * Conversion from an aural style property to Chrome TTS property. | 55 * Conversion from an aural style property to Chrome TTS property. |
| 56 * TODO(dtseng): no-op's below need to be supported by the extension API itself | 56 * TODO(dtseng): no-op's below need to be supported by the extension API itself |
| 57 * or by ChromeVox. | 57 * or by ChromeVox. |
| 58 * @type {Object.<cvox.AuralProperty, string>} | 58 * @type {Object<cvox.AuralProperty, string>} |
| 59 */ | 59 */ |
| 60 cvox.AuralStyleConverter.propertyTable = { | 60 cvox.AuralStyleConverter.propertyTable = { |
| 61 VOLUME: 'volume', | 61 VOLUME: 'volume', |
| 62 SPEAK: 'no-op', | 62 SPEAK: 'no-op', |
| 63 PAUSE_BEFORE: 'no-op', | 63 PAUSE_BEFORE: 'no-op', |
| 64 PAUSE_AFTER: 'no-op', | 64 PAUSE_AFTER: 'no-op', |
| 65 PAUSE: 'no-op', | 65 PAUSE: 'no-op', |
| 66 CUE_BEFORE: 'no-op', | 66 CUE_BEFORE: 'no-op', |
| 67 CUE_AFTER: 'no-op', | 67 CUE_AFTER: 'no-op', |
| 68 CUE: 'no-op', | 68 CUE: 'no-op', |
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| 79 SPEAK_NUMERIAL: 'no-op', | 79 SPEAK_NUMERIAL: 'no-op', |
| 80 SPEAK_HEADER: 'no-op', | 80 SPEAK_HEADER: 'no-op', |
| 81 NONE: 'no-op' | 81 NONE: 'no-op' |
| 82 }; | 82 }; |
| 83 | 83 |
| 84 | 84 |
| 85 /** | 85 /** |
| 86 * Conversion from an aural style value to Chrome TTS value. | 86 * Conversion from an aural style value to Chrome TTS value. |
| 87 * TODO(dtseng): Conversion of aural CSS values is incomplete; everything is an | 87 * TODO(dtseng): Conversion of aural CSS values is incomplete; everything is an |
| 88 * identity conversion at the moment. | 88 * identity conversion at the moment. |
| 89 * @type {Object.<cvox.AuralProperty, function(*)>} | 89 * @type {Object<cvox.AuralProperty, function(*)>} |
| 90 */ | 90 */ |
| 91 cvox.AuralStyleConverter.valueTable = { | 91 cvox.AuralStyleConverter.valueTable = { |
| 92 VOLUME: cvox.AuralStyleConverter.identity, | 92 VOLUME: cvox.AuralStyleConverter.identity, |
| 93 SPEAK: cvox.AuralStyleConverter.identity, | 93 SPEAK: cvox.AuralStyleConverter.identity, |
| 94 PAUSE_BEFORE: cvox.AuralStyleConverter.identity, | 94 PAUSE_BEFORE: cvox.AuralStyleConverter.identity, |
| 95 PAUSE_AFTER: cvox.AuralStyleConverter.identity, | 95 PAUSE_AFTER: cvox.AuralStyleConverter.identity, |
| 96 PAUSE: cvox.AuralStyleConverter.identity, | 96 PAUSE: cvox.AuralStyleConverter.identity, |
| 97 CUE_BEFORE: cvox.AuralStyleConverter.identity, | 97 CUE_BEFORE: cvox.AuralStyleConverter.identity, |
| 98 CUE_AFTER: cvox.AuralStyleConverter.identity, | 98 CUE_AFTER: cvox.AuralStyleConverter.identity, |
| 99 CUE: cvox.AuralStyleConverter.identity, | 99 CUE: cvox.AuralStyleConverter.identity, |
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| 122 cvox.AuralStyleConverter.convertRule = function(property, value) { | 122 cvox.AuralStyleConverter.convertRule = function(property, value) { |
| 123 return { | 123 return { |
| 124 property: cvox.AuralStyleConverter.propertyTable[property], | 124 property: cvox.AuralStyleConverter.propertyTable[property], |
| 125 value: cvox.AuralStyleConverter.valueTable[property](value) | 125 value: cvox.AuralStyleConverter.valueTable[property](value) |
| 126 }; | 126 }; |
| 127 }; | 127 }; |
| 128 | 128 |
| 129 | 129 |
| 130 /** | 130 /** |
| 131 * Converts an aural CSS style block to a TTS property object. | 131 * Converts an aural CSS style block to a TTS property object. |
| 132 * @param {Object.<cvox.AuralProperty, *>} style The style. | 132 * @param {Object<cvox.AuralProperty, *>} style The style. |
| 133 * @return {Object} The tts property object. | 133 * @return {Object} The tts property object. |
| 134 */ | 134 */ |
| 135 cvox.AuralStyleConverter.convertStyle = function(style) { | 135 cvox.AuralStyleConverter.convertStyle = function(style) { |
| 136 var ttsProperties = {}; | 136 var ttsProperties = {}; |
| 137 for (var property in style) { | 137 for (var property in style) { |
| 138 var ttsProperty = | 138 var ttsProperty = |
| 139 cvox.AuralStyleConverter.convertRule(property, style[property]); | 139 cvox.AuralStyleConverter.convertRule(property, style[property]); |
| 140 ttsProperties[ttsProperty.property] = ttsProperty.value; | 140 ttsProperties[ttsProperty.property] = ttsProperty.value; |
| 141 } | 141 } |
| 142 return ttsProperties; | 142 return ttsProperties; |
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| 200 'NAV': { | 200 'NAV': { |
| 201 PITCH: -0.1 | 201 PITCH: -0.1 |
| 202 }, | 202 }, |
| 203 'SECTION': { | 203 'SECTION': { |
| 204 PITCH: -0.1 | 204 PITCH: -0.1 |
| 205 }, | 205 }, |
| 206 'TIME': { | 206 'TIME': { |
| 207 PITCH: -0.1 | 207 PITCH: -0.1 |
| 208 } | 208 } |
| 209 }; | 209 }; |
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