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std docs: enhance search browser history UX

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Before this change every keypress in the search field causes a browser
history entry, which makes navigating back annoying.

On first keypress in the search field, a new history entry is created.
On subsequent keypresses, the most recent history entry is replaced.
Therefore a typical history after searching and navigating to an entry
might look like

1. documentation root
2. search page "print"
3. docs for `std.debug.print`


Co-authored-by: Žiga Željko <ziga.zeljko@gmail.com>
This commit is contained in:
Hannu Hartikainen 2021-04-02 23:59:04 +03:00 committed by Andrew Kelley
parent 545830c0ff
commit c9ffb6f734
1 changed files with 7 additions and 1 deletions
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8
lib/std/special/docs/main.js
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@ -1844,7 +1844,13 @@
var oldHash = location.hash;
var parts = oldHash.split("?");
var newPart2 = (domSearch.value === "") ? "" : ("?" + domSearch.value);
location.hash = (parts.length === 1) ? (oldHash + newPart2) : (parts[0] + newPart2);
var newHash = (oldHash === "" ? "#" : parts[0]) + newPart2;
// create a history entry only once per search
if (parts.length === 1) {
location.assign(newHash);
} else {
location.replace(newHash);
}
}
function getSearchTerms() {
var list = curNavSearch.trim().split(/[ \r\n\t]+/);