Files
mermaid-live-editor/src/components/View.svelte
T
2021-01-15 00:52:22 +05:30

117 lines
2.8 KiB
Svelte

<script>
import { codeStore } from '../code-store.js';
import { codeErrorStore, configErrorStore } from '../error-store.js';
import { onMount } from 'svelte';
import mermaid from '@mermaid';
const detectType = (text) => {
text = text.replace(/^\s*%%.*\n/g, '\n');
console.debug('Detecting diagram type based on the text ' + text);
if (text.match(/^\s*sequenceDiagram/)) {
return 'sequence';
}
if (text.match(/^\s*gantt/)) {
return 'gantt';
}
if (text.match(/^\s*classDiagram/)) {
return 'class';
}
if (text.match(/^\s*stateDiagram/)) {
return 'state';
}
if (text.match(/^\s*gitGraph/)) {
return 'git';
}
if (text.match(/^\s*flowchart/)) {
return 'flowchart';
}
if (text.match(/^\s*info/)) {
return 'info';
}
if (text.match(/^\s*pie/)) {
return 'pie';
}
return 'flowchart';
};
// manual debounce
let timeout;
const saveStatistcs = (graphType) => {
clearTimeout(timeout);
// Only save statistcs after a 5 sec delay
timeout = setTimeout(function () {
console.log('ga:', 'send', 'event', 'render', graphType, graphType);
ga('send', 'event', graphType, 'render', 'render');
}, 5000);
};
let container;
export let code = '';
export let configClasses = '';
export let codeClasses = '';
onMount(async () => {
const unsubscribe = codeStore.subscribe((state) => {
try {
if (container && state) {
// Replacing special characters '<' and '>' with encoded '&lt;' and '&gt;'
code = state.code.replace(/</g, '&lt;').replace(/>/g, '&gt;');
container.innerHTML = code;
saveStatistcs(detectType(code));
delete container.dataset.processed;
mermaid.initialize(Object.assign({}, state.mermaid));
mermaid.init(undefined, container);
if (code) mermaid.render('graph-div', code, insertSvg);
}
} catch (e) {
console.log('view fail', e);
}
});
const unsubscribeError = codeErrorStore.subscribe((_error) => {
if (typeof _error === 'undefined') {
codeClasses = '';
} else {
codeClasses = 'error';
console.log('code error: ', _error);
}
});
const unsubscribeConfigError = configErrorStore.subscribe((_error) => {
if (typeof _error === 'undefined') {
configClasses = '';
} else {
configClasses = 'error';
console.log('conf error: ', _error);
}
});
});
let insertSvg = function (svgCode, bindFunctions) {};
</script>
<style>
#view {
border: 1px solor darkred;
flex: 1;
}
#container {
overflow-x: auto;
}
.error {
opacity: 0.5;
}
</style>
<div id="view" class="{codeClasses} {configClasses}">
<div id="container" bind:this={container} />
</div>