| 61 | } |
| 62 | |
| 63 | export class StyleRule extends BaseStyleRule { |
| 64 | constructor(key, style, options) { |
| 65 | super(key, style, options) |
| 66 | const {selector, scoped, sheet, generateId} = options |
| 67 | if (selector) { |
| 68 | this.selectorText = selector |
| 69 | } else if (scoped !== false) { |
| 70 | this.id = generateId(this, sheet) |
| 71 | this.selectorText = `.${escape(this.id)}` |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Set selector string. |
| 77 | * Attention: use this with caution. Most browsers didn't implement |
| 78 | * selectorText setter, so this may result in rerendering of entire Style Sheet. |
| 79 | */ |
| 80 | set selector(selector) { |
| 81 | if (selector === this.selectorText) return |
| 82 | |
| 83 | this.selectorText = selector |
| 84 | |
| 85 | const {renderer, renderable} = this |
| 86 | |
| 87 | if (!renderable || !renderer) return |
| 88 | |
| 89 | const hasChanged = renderer.setSelector(renderable, selector) |
| 90 | |
| 91 | // If selector setter is not implemented, rerender the rule. |
| 92 | if (!hasChanged) { |
| 93 | renderer.replaceRule(renderable, this) |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Get selector string. |
| 99 | */ |
| 100 | get selector() { |
| 101 | return this.selectorText |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Apply rule to an element inline. |
| 106 | */ |
| 107 | applyTo(renderable) { |
| 108 | const {renderer} = this |
| 109 | if (renderer) { |
| 110 | const json = this.toJSON() |
| 111 | for (const prop in json) { |
| 112 | renderer.setProperty(renderable, prop, json[prop]) |
| 113 | } |
| 114 | } |
| 115 | return this |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Returns JSON representation of the rule. |
| 120 | * Fallbacks are not supported. |
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