Add old proof of concept code

This commit is contained in:
Ramon Wenger 2023-12-19 20:21:40 +01:00
parent 34d42f2d42
commit 8e556399fa
1 changed files with 115 additions and 0 deletions

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<script setup lang="ts">
import { onUnmounted, ref } from 'vue';
import rangy from 'rangy';
import 'rangy/lib/rangy-textrange';
import Mark from 'mark.js';
const markStart = ref(0);
const markLength = ref(15);
const paragraph = ref(null);
const select2 = () => {
const instance = new Mark(paragraph.value);
console.log(paragraph.value);
// instance.mark("Text");
// const sel = rangy.getSelection();
// const range = sel.getRangeAt(0);
//
// console.log(range);
// console.log(sel.anchorNode);
// console.log(sel.focusNode);
// console.log(rangy.dom.isAncestorOf(root.value, sel.anchorNode));
instance.markRanges([{ start: markStart.value, length: markLength.value }]);
};
const clear = () => {
const instance = new Mark(paragraph.value);
instance.unmark();
};
const selectionHandler = (e) => {
console.log(e);
// const selection = window.getSelection();
const selection = rangy.getSelection();
if (selection && !selection?.isCollapsed) {
console.log('selection changed and something is there');
// getting selection
console.log(selection);
// const { anchorNode, focusNode } = selection;
// console.log(paragraph.value.contains(anchorNode));
// console.log(paragraph.value.contains(focusNode));
// const anchorNode = selection?.anchorNode
// get range
const range = selection.getRangeAt(0);
console.log(range);
// console.log(range.startContainer);
// console.log(range.startContainer.parentNode === paragraph.value);
// get start and end of range to use
const { startContainer, endContainer, startOffset, endOffset } = range;
// find out what the offset is of those containers relative to the parent
// const start = getNodeOffset(startContainer, paragraph.value);
// const end = getNodeOffset(endContainer, paragraph.value);
const { start, end } = range.toCharacterRange(paragraph.value);
console.log(
`start: ${start}, end: ${end}, highlightStart: ${start + startOffset}, highlightEnd: ${end + endOffset}`
);
// markStart.value = start + startOffset;
markStart.value = start;
// markLength.value = end + endOffset - markStart.value;
markLength.value = end - markStart.value;
console.log(range.toCharacterRange(paragraph.value));
}
};
document.addEventListener('selectionchange', selectionHandler);
onUnmounted(() => {
document.removeEventListener('selectionchange', selectionHandler);
});
</script>
<template>
<div
class="greetings"
ref="root"
>
<pre>
{{ markStart }} / {{ markLength }}
</pre>
<h3>Here's some text</h3>
<p>
Here is some more Text to be selected. There's even some
<em>emphasized</em> words and even <a href="https://iterativ.ch">links</a>.
</p>
<p ref="paragraph">There are even <i>multiple</i> paragraphs.</p>
<ul>
<li>Hallo</li>
<li>Velo</li>
</ul>
<button @click="select">Select</button>
<button @click="select2">Select 2</button>
<button @click="clear">Unmark</button>
</div>
</template>
<style scoped>
h1 {
font-weight: 500;
font-size: 2.6rem;
position: relative;
top: -10px;
}
h3 {
font-size: 1.2rem;
}
.greetings h1,
.greetings h3 {
text-align: center;
}
@media (min-width: 1024px) {
.greetings h1,
.greetings h3 {
text-align: left;
}
}
</style>