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Use tag and some attributes were not supporting. Needed for node-qrcode #81

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Use tag and some attributes were not supporting. Needed for node-qrcode #81

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239 changes: 123 additions & 116 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,21 +4,22 @@ import PropTypes from 'prop-types'
import xmldom from 'xmldom';
import resolveAssetSource from 'react-native/Libraries/Image/resolveAssetSource';

import Svg,{
Circle,
Ellipse,
G ,
LinearGradient,
RadialGradient,
Line,
Path,
Polygon,
Polyline,
Rect,
Text,
TSpan,
Defs,
Stop
import Svg, {
Circle,
Ellipse,
G,
LinearGradient,
RadialGradient,
Line,
Path,
Polygon,
Polyline,
Rect,
Text,
TSpan,
Defs,
Stop,
Use
} from 'react-native-svg';

import * as utils from './utils';
Expand All @@ -38,12 +39,13 @@ const ACCEPTED_SVG_ELEMENTS = [
'polygon',
'polyline',
'text',
'tspan'
'tspan',
'use'
];

// Attributes from SVG elements that are mapped directly.
const SVG_ATTS = ['viewBox', 'width', 'height'];
const G_ATTS = ['id'];
const G_ATTS = [];

const CIRCLE_ATTS = ['cx', 'cy', 'r'];
const PATH_ATTS = ['d'];
Expand All @@ -58,14 +60,14 @@ const TEXT_ATTS = ['fontFamily', 'fontSize', 'fontWeight']

const POLYGON_ATTS = ['points'];
const POLYLINE_ATTS = ['points'];

const COMMON_ATTS = ['fill', 'fillOpacity', 'stroke', 'strokeWidth', 'strokeOpacity', 'opacity',
'strokeLinecap', 'strokeLinejoin',
'strokeDasharray', 'strokeDashoffset', 'x', 'y', 'rotate', 'scale', 'origin', 'originX', 'originY'];
const USE_ATTS = ['xlink:href', 'href'];
const COMMON_ATTS = ['fill', 'fillOpacity', 'fill-opacity', 'stroke', 'strokeWidth', 'strokeOpacity', 'opacity',
'strokeLinecap', 'strokeLinejoin',
'strokeDasharray', 'strokeDashoffset', 'x', 'y', 'rotate', 'scale', 'origin', 'originX', 'originY', 'id'];

let ind = 0;

function fixYPosition (y, node) {
function fixYPosition(y, node) {
if (node.attributes) {
const fontSizeAttr = Object.keys(node.attributes).find(a => node.attributes[a].name === 'font-size');
if (fontSizeAttr) {
Expand All @@ -78,19 +80,19 @@ function fixYPosition (y, node) {
return fixYPosition(y, node.parentNode)
}

class SvgUri extends Component{
class SvgUri extends Component {

constructor(props){
constructor(props) {
super(props);

this.state = {fill: props.fill, svgXmlData: props.svgXmlData};

this.createSVGElement = this.createSVGElement.bind(this);
this.obtainComponentAtts = this.obtainComponentAtts.bind(this);
this.inspectNode = this.inspectNode.bind(this);
this.fetchSVGData = this.fetchSVGData.bind(this);
this.createSVGElement = this.createSVGElement.bind(this);
this.obtainComponentAtts = this.obtainComponentAtts.bind(this);
this.inspectNode = this.inspectNode.bind(this);
this.fetchSVGData = this.fetchSVGData.bind(this);

this.isComponentMounted = false;
this.isComponentMounted = false;

// Gets the image data from an URL or a static file
if (props.source) {
Expand All @@ -103,118 +105,123 @@ class SvgUri extends Component{
this.isComponentMounted = true;
}

componentWillReceiveProps (nextProps){
componentWillReceiveProps(nextProps) {
if (nextProps.source) {
const source = resolveAssetSource(nextProps.source) || {};
const oldSource = resolveAssetSource(this.props.source) || {};
if(source.uri !== oldSource.uri){
if (source.uri !== oldSource.uri) {
this.fetchSVGData(source.uri);
}
}

if (nextProps.svgXmlData !== this.props.svgXmlData) {
this.setState({ svgXmlData: nextProps.svgXmlData });
this.setState({svgXmlData: nextProps.svgXmlData});
}

if (nextProps.fill !== this.props.fill) {
this.setState({ fill: nextProps.fill });
this.setState({fill: nextProps.fill});
}
}

componentWillUnmount() {
this.isComponentMounted = false
}

async fetchSVGData(uri){
async fetchSVGData(uri) {
let responseXML = null;
try {
const response = await fetch(uri);
responseXML = await response.text();
} catch(e) {
} catch (e) {
console.error("ERROR SVG", e);
} finally {
if (this.isComponentMounted) {
this.setState({svgXmlData:responseXML});
this.setState({svgXmlData: responseXML});
}
}

return responseXML;
}
// Remove empty strings from children array

// Remove empty strings from children array
trimElementChilden(children) {
for (child of children) {
if (typeof child === 'string') {
if (child.trim.length === 0)
children.splice(children.indexOf(child), 1);
children.splice(children.indexOf(child), 1);
}
}
}

createSVGElement(node, childs){
createSVGElement(node, childs) {
this.trimElementChilden(childs);
let componentAtts = {};
const i = ind++;
switch (node.nodeName) {
case 'svg':
componentAtts = this.obtainComponentAtts(node, SVG_ATTS);
if (this.props.width) {
componentAtts.width = this.props.width;
}
if (this.props.height) {
componentAtts.height = this.props.height;
}
case 'svg':
componentAtts = this.obtainComponentAtts(node, SVG_ATTS);
if (this.props.width) {
componentAtts.width = this.props.width;
}
if (this.props.height) {
componentAtts.height = this.props.height;
}

return <Svg key={i} {...componentAtts}>{childs}</Svg>;
case 'g':
componentAtts = this.obtainComponentAtts(node, G_ATTS);
return <G key={i} {...componentAtts}>{childs}</G>;
case 'path':
componentAtts = this.obtainComponentAtts(node, PATH_ATTS);
return <Path key={i} {...componentAtts}>{childs}</Path>;
case 'circle':
componentAtts = this.obtainComponentAtts(node, CIRCLE_ATTS);
return <Circle key={i} {...componentAtts}>{childs}</Circle>;
case 'rect':
componentAtts = this.obtainComponentAtts(node, RECT_ATTS);
return <Rect key={i} {...componentAtts}>{childs}</Rect>;
case 'line':
componentAtts = this.obtainComponentAtts(node, LINE_ATTS);
return <Line key={i} {...componentAtts}>{childs}</Line>;
case 'defs':
return <Defs key={i}>{childs}</Defs>;
case 'linearGradient':
componentAtts = this.obtainComponentAtts(node, LINEARG_ATTS);
return <LinearGradient key={i} {...componentAtts}>{childs}</LinearGradient>;
case 'radialGradient':
componentAtts = this.obtainComponentAtts(node, RADIALG_ATTS);
return <RadialGradient key={i} {...componentAtts}>{childs}</RadialGradient>;
case 'stop':
componentAtts = this.obtainComponentAtts(node, STOP_ATTS);
return <Stop key={i} {...componentAtts}>{childs}</Stop>;
case 'ellipse':
componentAtts = this.obtainComponentAtts(node, ELLIPSE_ATTS);
return <Ellipse key={i} {...componentAtts}>{childs}</Ellipse>;
case 'polygon':
componentAtts = this.obtainComponentAtts(node, POLYGON_ATTS);
return <Polygon key={i} {...componentAtts}>{childs}</Polygon>;
case 'polyline':
componentAtts = this.obtainComponentAtts(node, POLYLINE_ATTS);
return <Polyline key={i} {...componentAtts}>{childs}</Polyline>;
case 'text':
componentAtts = this.obtainComponentAtts(node, TEXT_ATTS);
if (componentAtts.y) {
componentAtts.y = fixYPosition(componentAtts.y, node)
}
return <Text key={i} {...componentAtts}>{childs}</Text>;
case 'tspan':
componentAtts = this.obtainComponentAtts(node, TEXT_ATTS);
if (componentAtts.y) {
componentAtts.y = fixYPosition(componentAtts.y, node)
}
return <TSpan key={i} {...componentAtts}>{childs}</TSpan>;
default:
return null;
return <Svg key={i} {...componentAtts}>{childs}</Svg>;
case 'g':
componentAtts = this.obtainComponentAtts(node, G_ATTS);
return <G key={i} {...componentAtts}>{childs}</G>;
case 'path':
componentAtts = this.obtainComponentAtts(node, PATH_ATTS);
return <Path key={i} {...componentAtts}>{childs}</Path>;
case 'circle':
componentAtts = this.obtainComponentAtts(node, CIRCLE_ATTS);
return <Circle key={i} {...componentAtts}>{childs}</Circle>;
case 'rect':
componentAtts = this.obtainComponentAtts(node, RECT_ATTS);
return <Rect key={i} {...componentAtts}>{childs}</Rect>;
case 'line':
componentAtts = this.obtainComponentAtts(node, LINE_ATTS);
return <Line key={i} {...componentAtts}>{childs}</Line>;
case 'defs':
return <Defs key={i}>{childs}</Defs>;
case 'use':
componentAtts = this.obtainComponentAtts(node, USE_ATTS);
if (undefined !== componentAtts['xlink:href']) //react-native-svg may not know about xlink
componentAtts.href = componentAtts['xlink:href'];
return <Use key={i} {...componentAtts} />;
case 'linearGradient':
componentAtts = this.obtainComponentAtts(node, LINEARG_ATTS);
return <LinearGradient key={i} {...componentAtts}>{childs}</LinearGradient>;
case 'radialGradient':
componentAtts = this.obtainComponentAtts(node, RADIALG_ATTS);
return <RadialGradient key={i} {...componentAtts}>{childs}</RadialGradient>;
case 'stop':
componentAtts = this.obtainComponentAtts(node, STOP_ATTS);
return <Stop key={i} {...componentAtts}>{childs}</Stop>;
case 'ellipse':
componentAtts = this.obtainComponentAtts(node, ELLIPSE_ATTS);
return <Ellipse key={i} {...componentAtts}>{childs}</Ellipse>;
case 'polygon':
componentAtts = this.obtainComponentAtts(node, POLYGON_ATTS);
return <Polygon key={i} {...componentAtts}>{childs}</Polygon>;
case 'polyline':
componentAtts = this.obtainComponentAtts(node, POLYLINE_ATTS);
return <Polyline key={i} {...componentAtts}>{childs}</Polyline>;
case 'text':
componentAtts = this.obtainComponentAtts(node, TEXT_ATTS);
if (componentAtts.y) {
componentAtts.y = fixYPosition(componentAtts.y, node)
}
return <Text key={i} {...componentAtts}>{childs}</Text>;
case 'tspan':
componentAtts = this.obtainComponentAtts(node, TEXT_ATTS);
if (componentAtts.y) {
componentAtts.y = fixYPosition(componentAtts.y, node)
}
return <TSpan key={i} {...componentAtts}>{childs}</TSpan>;
default:
return null;
}
}

Expand All @@ -228,7 +235,7 @@ class SvgUri extends Component{
}));
});

const componentAtts = Array.from(attributes)
const componentAtts = Array.from(attributes)
.map(utils.camelCaseNodeName)
.map(utils.removePixelsFromNodeValue)
.filter(utils.getEnabledAttributes(enabledAttributes.concat(COMMON_ATTS)))
Expand All @@ -241,7 +248,7 @@ class SvgUri extends Component{
return componentAtts;
}

inspectNode(node){
inspectNode(node) {
// Only process accepted elements
if (!ACCEPTED_SVG_ELEMENTS.includes(node.nodeName)) {
return null;
Expand All @@ -252,24 +259,24 @@ class SvgUri extends Component{

// if have children process them.
// Recursive function.
if (node.childNodes && node.childNodes.length > 0){
for (let i = 0; i < node.childNodes.length; i++){
const isTextValue = node.childNodes[i].nodeValue
if (isTextValue) {
arrayElements.push(node.childNodes[i].nodeValue)
} else {
const nodo = this.inspectNode(node.childNodes[i]);
if (nodo != null) {
arrayElements.push(nodo);
}
if (node.childNodes && node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
const isTextValue = node.childNodes[i].nodeValue
if (isTextValue) {
arrayElements.push(node.childNodes[i].nodeValue)
} else {
const nodo = this.inspectNode(node.childNodes[i]);
if (nodo != null) {
arrayElements.push(nodo);
}
}
}
}

return this.createSVGElement(node, arrayElements);
}

render () {
render() {
try {
if (this.state.svgXmlData == null) {
return null;
Expand All @@ -284,12 +291,12 @@ class SvgUri extends Component{

const rootSVG = this.inspectNode(doc.childNodes[0]);

return(
<View style={this.props.style}>
{rootSVG}
</View>
return (
<View style={this.props.style}>
{rootSVG}
</View>
);
} catch(e){
} catch (e) {
console.error("ERROR SVG", e);
return null;
}
Expand Down