feature #22917 [VarDumper] Cycle prev/next searching in HTML dumps (r…

…o0NL)

This PR was submitted for the 3.3 branch but it was merged into the 3.4 branch instead (closes #22917).

Discussion
----------

[VarDumper] Cycle prev/next searching in HTML dumps

| Q             | A
| ------------- | ---
| Branch?       | 3.3
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #... <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!--highly recommended for new features-->

This cycles the prev/next searching in html dumps and mimics (at least) chrome's search bar. It's truly convenient, hence 3.3

cc @ogizanagi

Commits
-------

73f24e8 search case insensitive
0821c5a [VarDumper] Cyclic searching dumps

src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php

@@ -425,15 +425,15 @@ function xpathString(str) {
                 if (this.isEmpty()) {
                     return this.current();
                 }
-                this.idx = this.idx < (this.nodes.length - 1) ? this.idx + 1 : this.idx;
+                this.idx = this.idx < (this.nodes.length - 1) ? this.idx + 1 : 0;
         
                 return this.current();
             },
             previous: function () {
                 if (this.isEmpty()) {
                     return this.current();
                 }
-                this.idx = this.idx > 0 ? this.idx - 1 : this.idx;
+                this.idx = this.idx > 0 ? this.idx - 1 : (this.nodes.length - 1);
         
                 return this.current();
             },
@@ -507,7 +507,7 @@ function showCurrent(state)
                     return;
                 }
 
-                var xpathResult = doc.evaluate('//pre[@id="' + root.id + '"]//span[@class="sf-dump-str" or @class="sf-dump-key" or @class="sf-dump-public" or @class="sf-dump-protected" or @class="sf-dump-private"][contains(child::text(), ' + xpathString(searchQuery) + ')]', document, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
+                var xpathResult = doc.evaluate('//pre[@id="' + root.id + '"]//span[@class="sf-dump-str" or @class="sf-dump-key" or @class="sf-dump-public" or @class="sf-dump-protected" or @class="sf-dump-private"][contains(translate(child::text(), ' + xpathString(searchQuery.toUpperCase()) + ', ' + xpathString(searchQuery.toLowerCase()) + '), ' + xpathString(searchQuery.toLowerCase()) + ')]', document, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
 
                 while (node = xpathResult.iterateNext()) state.nodes.push(node);