[incremental search] style patch for better highlights

lib/ace/incremental_search.js

@@ -168,6 +168,32 @@ oop.inherits(IncrementalSearch, Search);
 exports.IncrementalSearch = IncrementalSearch;
 
 
+/**
+ *
+ * Config settings for enabling/disabling [[IncrementalSearch `IncrementalSearch`]].
+ *
+ **/
+
+function patchHighlightMarkerStyling(options) {
+    options = options || {};
+    var id = 'incremental-search-highlight-style-patch',
+        style = document.getElementById(id);
+    if (style) {
+        if (options.enable) return;
+        style.parentNode.removeChild(style);
+        return;
+    }
+    if (!options.enable) return;
+    style = document.createElement('style');
+    style.setAttribute('id', id);
+    style.textContent = "div.ace_selected-word {\n"
+                      + "  background-color: orange !important;\n"
+                      + "  border: 0 !important;"
+                      + "}\n"
+    document.getElementsByTagName('head')[0].appendChild(style);
+}
+
+
 var Editor = require("./editor").Editor;
 require("./config").defineOptions(Editor.prototype, "editor", {
     useIncrementalSearch: {
@@ -177,6 +203,7 @@ require("./config").defineOptions(Editor.prototype, "editor", {
             if (val) {
                 // enable for whole editor
                 this.commands.addCommands(iSearchCommands);
+                patchHighlightMarkerStyling({enable: true});
                 if (kbd.isEmacs) { // adapt emacs key handler if used
                     kbd.oldSearchBindings = {
                         'c-s': kbd.commmandKeyBinding['c-s'],
@@ -187,6 +214,7 @@ require("./config").defineOptions(Editor.prototype, "editor", {
                 }
             } else {
                 this.commands.removeCommands(iSearchCommands);
+                patchHighlightMarkerStyling({enable: false});
                 if (kbd.isEmacs) {
                     kbd.bindKey('C-s', kbd.oldSearchBindings['c-s']);
                     kbd.bindKey('C-r', kbd.oldSearchBindings['c-r']);