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getCountOfVisibleCharsInViewport functionality

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webzwo0i 2021-01-08 08:19:15 +01:00
parent 01fe885adc
commit 996f0e8a1d
3 changed files with 166 additions and 71 deletions
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8
src/static/js/ace2_inner.js
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@ -1441,6 +1441,13 @@ function Ace2Inner() {
}
}
/**
* Returns the node and index into this node that corresponds to a given line number and character
* position.
*
* @params {[number, number]} lineAndChar an array of the form [row, col]
* @returns {{node: HTMLElement, index: number, maxIndex: number}}
*/
function getPointForLineAndChar(lineAndChar) {
const line = lineAndChar[0];
let charsLeft = lineAndChar[1];
@ -1455,6 +1462,7 @@ function Ace2Inner() {
const lineNode = lineEntry.lineNode;
let n = lineNode;
let after = false;
// at [x, 0] of a line with line attributes
if (charsLeft === 0) {
const index = 0;
return {