68 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			68 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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var parsers = require('../parsers');
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module.exports.definition = {
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  set: function(v) {
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    var valueType = parsers.valueType(v);
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    if (valueType === parsers.TYPES.ANGLE) {
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      return this._setProperty('azimuth', parsers.parseAngle(v));
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    }
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    if (valueType === parsers.TYPES.KEYWORD) {
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      var keywords = v
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        .toLowerCase()
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        .trim()
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        .split(/\s+/);
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      var hasBehind = false;
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      if (keywords.length > 2) {
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        return;
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      }
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      var behindIndex = keywords.indexOf('behind');
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      hasBehind = behindIndex !== -1;
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      if (keywords.length === 2) {
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        if (!hasBehind) {
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          return;
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        }
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        keywords.splice(behindIndex, 1);
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      }
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      if (keywords[0] === 'leftwards' || keywords[0] === 'rightwards') {
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        if (hasBehind) {
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          return;
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        }
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        return this._setProperty('azimuth', keywords[0]);
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      }
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      if (keywords[0] === 'behind') {
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        return this._setProperty('azimuth', '180deg');
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      }
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      switch (keywords[0]) {
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        case 'left-side':
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          return this._setProperty('azimuth', '270deg');
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        case 'far-left':
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          return this._setProperty('azimuth', (hasBehind ? 240 : 300) + 'deg');
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        case 'left':
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          return this._setProperty('azimuth', (hasBehind ? 220 : 320) + 'deg');
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        case 'center-left':
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          return this._setProperty('azimuth', (hasBehind ? 200 : 340) + 'deg');
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        case 'center':
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          return this._setProperty('azimuth', (hasBehind ? 180 : 0) + 'deg');
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        case 'center-right':
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          return this._setProperty('azimuth', (hasBehind ? 160 : 20) + 'deg');
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        case 'right':
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          return this._setProperty('azimuth', (hasBehind ? 140 : 40) + 'deg');
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        case 'far-right':
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          return this._setProperty('azimuth', (hasBehind ? 120 : 60) + 'deg');
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        case 'right-side':
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          return this._setProperty('azimuth', '90deg');
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        default:
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          return;
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      }
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    }
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  },
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  get: function() {
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    return this.getPropertyValue('azimuth');
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  },
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  enumerable: true,
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  configurable: true,
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};
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