1 | import { Span } from './span';
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2 | import { Observable } from '../../data/observable';
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3 | import { ObservableArray } from '../../data/observable-array';
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4 | import { ViewBase } from '../core/view-base';
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5 | export class FormattedString extends ViewBase {
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6 | constructor() {
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7 | super();
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8 | this._spans = new ObservableArray();
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9 | this._spans.addEventListener(ObservableArray.changeEvent, this.onSpansCollectionChanged, this);
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10 | }
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11 | get fontFamily() {
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12 | return this.style.fontFamily;
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13 | }
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14 | set fontFamily(value) {
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15 | this.style.fontFamily = value;
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16 | }
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17 | get fontSize() {
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18 | return this.style.fontSize;
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19 | }
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20 | set fontSize(value) {
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21 | this.style.fontSize = value;
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22 | }
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23 | get fontStyle() {
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24 | return this.style.fontStyle;
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25 | }
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26 | set fontStyle(value) {
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27 | this.style.fontStyle = value;
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28 | }
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29 | get fontWeight() {
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30 | return this.style.fontWeight;
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31 | }
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32 | set fontWeight(value) {
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33 | this.style.fontWeight = value;
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34 | }
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35 | get fontVariationSettings() {
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36 | return this.style.fontVariationSettings;
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37 | }
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38 | set fontVariationSettings(value) {
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39 | this.style.fontVariationSettings = value;
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40 | }
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41 | get textDecoration() {
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42 | return this.style.textDecoration;
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43 | }
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44 | set textDecoration(value) {
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45 | this.style.textDecoration = value;
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46 | }
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47 | get color() {
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48 | return this.style.color;
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49 | }
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50 | set color(value) {
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51 | this.style.color = value;
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52 | }
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53 | get backgroundColor() {
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54 | return this.style.backgroundColor;
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55 | }
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56 | set backgroundColor(value) {
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57 | this.style.backgroundColor = value;
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58 | }
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59 | get iosAccessibilityAdjustsFontSize() {
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60 | return this.style.iosAccessibilityAdjustsFontSize;
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61 | }
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62 | set iosAccessibilityAdjustsFontSize(value) {
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63 | this.style.iosAccessibilityAdjustsFontSize = value;
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64 | }
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65 | get iosAccessibilityMinFontScale() {
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66 | return this.style.iosAccessibilityMinFontScale;
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67 | }
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68 | set iosAccessibilityMinFontScale(value) {
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69 | this.style.iosAccessibilityMinFontScale = value;
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70 | }
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71 | get iosAccessibilityMaxFontScale() {
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72 | return this.style.iosAccessibilityMaxFontScale;
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73 | }
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74 | set iosAccessibilityMaxFontScale(value) {
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75 | this.style.iosAccessibilityMaxFontScale = value;
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76 | }
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77 | get spans() {
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78 | if (!this._spans) {
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79 | this._spans = new ObservableArray();
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80 | }
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81 | return this._spans;
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82 | }
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83 | toString() {
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84 | let result = '';
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85 | for (let i = 0, length = this.spans.length; i < length; i++) {
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86 | result += this.spans.getItem(i).text;
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87 | }
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88 | return result;
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89 | }
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90 | _addArrayFromBuilder(name, value) {
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91 | if (name === 'spans') {
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92 | this.spans.push(...value);
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93 | }
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94 | }
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95 | _addChildFromBuilder(name, value) {
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96 | if (value instanceof Span) {
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97 | this.spans.push(value);
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98 | }
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99 | }
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100 | onSpansCollectionChanged(eventData) {
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101 | if (eventData.addedCount > 0) {
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102 | for (let i = 0; i < eventData.addedCount; i++) {
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103 | const span = eventData.object.getItem(eventData.index + i);
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104 |
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105 | this._addView(span);
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106 |
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107 |
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108 | this.addPropertyChangeHandler(span);
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109 | }
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110 | }
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111 | if (eventData.removed && eventData.removed.length > 0) {
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112 | for (let p = 0; p < eventData.removed.length; p++) {
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113 | const span = eventData.removed[p];
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114 |
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115 |
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116 | this.removePropertyChangeHandler(span);
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117 |
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118 | this._removeView(span);
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119 | }
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120 | }
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121 | this.notifyPropertyChange('.', this);
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122 | }
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123 | addPropertyChangeHandler(span) {
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124 | const style = span.style;
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125 | span.on(Observable.propertyChangeEvent, this.onPropertyChange, this);
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126 | style.on('fontFamilyChange', this.onPropertyChange, this);
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127 | style.on('fontSizeChange', this.onPropertyChange, this);
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128 | style.on('fontStyleChange', this.onPropertyChange, this);
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129 | style.on('fontWeightChange', this.onPropertyChange, this);
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130 | style.on('fontVariationSettingsChange', this.onPropertyChange, this);
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131 | style.on('textDecorationChange', this.onPropertyChange, this);
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132 | style.on('colorChange', this.onPropertyChange, this);
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133 | style.on('backgroundColorChange', this.onPropertyChange, this);
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134 |
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135 | style.on('iosAccessibilityAdjustsFontSizeChange', this.onPropertyChange, this);
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136 | style.on('iosAccessibilityMinFontScaleChange', this.onPropertyChange, this);
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137 | style.on('iosAccessibilityMaxFontScaleChange', this.onPropertyChange, this);
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138 | style.on('fontScaleInternalChange', this.onPropertyChange, this);
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139 | }
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140 | removePropertyChangeHandler(span) {
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141 | const style = span.style;
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142 | span.off(Observable.propertyChangeEvent, this.onPropertyChange, this);
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143 | style.off('fontFamilyChange', this.onPropertyChange, this);
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144 | style.off('fontSizeChange', this.onPropertyChange, this);
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145 | style.off('fontStyleChange', this.onPropertyChange, this);
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146 | style.off('fontWeightChange', this.onPropertyChange, this);
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147 | style.off('fontVariationSettingsChange', this.onPropertyChange, this);
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148 | style.off('textDecorationChange', this.onPropertyChange, this);
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149 | style.off('colorChange', this.onPropertyChange, this);
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150 | style.off('backgroundColorChange', this.onPropertyChange, this);
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151 | style.off('iosAccessibilityAdjustsFontSizeChange', this.onPropertyChange, this);
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152 | style.off('iosAccessibilityMinFontScaleChange', this.onPropertyChange, this);
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153 | style.off('iosAccessibilityMaxFontScaleChange', this.onPropertyChange, this);
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154 | style.off('fontScaleInternalChange', this.onPropertyChange, this);
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155 | }
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156 | onPropertyChange(data) {
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157 | this.notifyPropertyChange(data.propertyName, this);
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158 | }
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159 | eachChild(callback) {
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160 | this.spans.forEach((v, i, arr) => callback(v));
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161 | }
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162 | }
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163 |
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