85 lines
3.2 KiB
JavaScript
85 lines
3.2 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.SvgHighlighter = void 0;
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const DomUtil = require("../common/dom_util");
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const abstract_highlighter_1 = require("./abstract_highlighter");
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class SvgHighlighter extends abstract_highlighter_1.AbstractHighlighter {
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constructor() {
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super();
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this.mactionName = 'mjx-svg-maction';
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}
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highlightNode(node) {
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let info;
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if (this.isHighlighted(node)) {
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info = {
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node: node.previousSibling || node,
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background: node.style.backgroundColor,
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foreground: node.style.color
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};
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return info;
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}
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if (node.tagName === 'svg') {
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const info = {
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node: node,
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background: node.style.backgroundColor,
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foreground: node.style.color
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};
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node.style.backgroundColor = this.colorString().background;
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node.style.color = this.colorString().foreground;
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return info;
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}
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const rect = DomUtil.createElementNS('http://www.w3.org/2000/svg', 'rect');
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const padding = 40;
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let bbox;
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if (node.nodeName === 'use') {
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const g = DomUtil.createElementNS('http://www.w3.org/2000/svg', 'g');
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node.parentNode.insertBefore(g, node);
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g.appendChild(node);
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bbox = g.getBBox();
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g.parentNode.replaceChild(node, g);
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}
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else {
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bbox = node.getBBox();
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}
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rect.setAttribute('x', (bbox.x - padding).toString());
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rect.setAttribute('y', (bbox.y - padding).toString());
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rect.setAttribute('width', (bbox.width + 2 * padding).toString());
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rect.setAttribute('height', (bbox.height + 2 * padding).toString());
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const transform = node.getAttribute('transform');
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if (transform) {
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rect.setAttribute('transform', transform);
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}
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rect.setAttribute('fill', this.colorString().background);
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rect.setAttribute(abstract_highlighter_1.AbstractHighlighter.ATTR, 'true');
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node.parentNode.insertBefore(rect, node);
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info = { node: rect, foreground: node.getAttribute('fill') };
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node.setAttribute('fill', this.colorString().foreground);
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return info;
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}
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setHighlighted(node) {
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if (node.tagName === 'svg') {
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super.setHighlighted(node);
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}
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}
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unhighlightNode(info) {
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if ('background' in info) {
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info.node.style.backgroundColor = info.background;
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info.node.style.color = info.foreground;
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return;
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}
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info.foreground
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? info.node.nextSibling.setAttribute('fill', info.foreground)
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: info.node.nextSibling.removeAttribute('fill');
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info.node.parentNode.removeChild(info.node);
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}
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isMactionNode(node) {
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let className = node.className || node.getAttribute('class');
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className =
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className.baseVal !== undefined
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? className.baseVal
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: className;
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return className ? !!className.match(new RegExp(this.mactionName)) : false;
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}
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}
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exports.SvgHighlighter = SvgHighlighter;
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