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Code Issues Releases Wiki Activity

deinitialize window functions when unmounting topology widget

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This commit is contained in:
Ricardo Hernandez-Montoya 2018-01-10 14:37:12 +01:00
parent bf1f4513fd
commit 65756ead66
1 changed files with 29 additions and 4 deletions
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33
src/components/widget-topology.js
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@ -53,6 +53,32 @@ const msgStyle = {
fontWeight: 'bold'
}
// Initialize functions
function attachComponentEvents() {
window.onMouseOver = (e) => show(textSibling(e));
window.onMouseLeave = (e) => hide(textSibling(e));
}
function textSibling(e) {
// Find sibling text element and toggle its visibility
let gParent = e.target.parentElement;
return gParent.getElementsByTagName('text')[0];
}
function show(element) {
element.style.visibility = 'inherit';
}
function hide(element) {
element.style.visibility = 'hidden';
}
// De-initialize functions
function detachComponentEvents() {
window.onMouseOver = null;
window.onMouseLeave = null;
}
class WidgetTopology extends React.Component {
constructor(props) {
super(props);
@ -78,9 +104,8 @@ class WidgetTopology extends React.Component {
}
}
attachComponentEvents() {
window.onMouseOver = (e) => console.log(e);
window.onMouseLeave = (e) => console.log(e);
componentWillUnmount() {
detachComponentEvents();
}
componentWillReceiveProps(nextProps) {
@ -97,7 +122,7 @@ class WidgetTopology extends React.Component {
window.cimsvg.setFileCount(1);
response.text().then( contents => {
window.cimsvg.loadFile(contents);
this.attachComponentEvents();
attachComponentEvents();
});
} else {
throw new Error('Request failed');