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Move binarySearchFirstItem back to the web/-folder (PR 15237 follow-up)

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This was moved into the `src/display/`-folder in PR 15110, for the initial editor-a11y patch. However, with the changes in PR 15237 we're again only using `binarySearchFirstItem` in the `web/`-folder and it thus seem reasonable to move it back there.
The primary reason for moving it back is that `binarySearchFirstItem` is currently exposed in the public API, and we always want to avoid that unless it's either PDF-related functionality or code that simply must be shared between the `src/`- and `web/`-folders. In this case, `binarySearchFirstItem` is a general helper function that doesn't really satisfy either of those alternatives.
This commit is contained in:
Jonas Jenwald 2022-08-14 11:24:38 +02:00
parent 2b66ed5fef
commit 0024165f1f
7 changed files with 79 additions and 83 deletions
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33
src/display/display_utils.js
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@ -611,38 +611,6 @@ function getColorValues(colors) {
span.remove();
}
/**
* Use binary search to find the index of the first item in a given array which
* passes a given condition. The items are expected to be sorted in the sense
* that if the condition is true for one item in the array, then it is also true
* for all following items.
*
* @returns {number} Index of the first array element to pass the test,
* or |items.length| if no such element exists.
*/
function binarySearchFirstItem(items, condition, start = 0) {
let minIndex = start;
let maxIndex = items.length - 1;
if (maxIndex < 0 || !condition(items[maxIndex])) {
return items.length;
}
if (condition(items[minIndex])) {
return minIndex;
}
while (minIndex < maxIndex) {
const currentIndex = (minIndex + maxIndex) >> 1;
const currentItem = items[currentIndex];
if (condition(currentItem)) {
maxIndex = currentIndex;
} else {
minIndex = currentIndex + 1;
}
}
return minIndex; /* === maxIndex */
}
function getCurrentTransform(ctx) {
const { a, b, c, d, e, f } = ctx.getTransform();
return [a, b, c, d, e, f];
@ -655,7 +623,6 @@ function getCurrentTransformInverse(ctx) {
export {
AnnotationPrefix,
binarySearchFirstItem,
deprecated,
DOMCanvasFactory,
DOMCMapReaderFactory,