Merge branch 'feature/clear-search-field-11835'

resolves #11835

application/views/scripts/layout/menu.phtml

@@ -6,11 +6,11 @@ $searchDashboard = new SearchDashboard();
 $searchDashboard->setUser($this->Auth()->getUser());
 
 if ($searchDashboard->search('dummy')->getPane('search')->hasDashlets()): ?>
-    <form action="<?= $this->href('search') ?>" method="get" role="search">
-        <input
-            type="text" name="q" id="search" class="search" placeholder="<?= $this->translate('Search') ?> &hellip;"
-            autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"
-        />
+    <form action="<?= $this->href('search') ?>" method="get" role="search" class="search-control">
+        <input type="text" name="q" id="search" class="search search-input"
+               placeholder="<?= $this->translate('Search') ?> &hellip;"
+               autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" required="required">
+        <button class="search-reset icon-cancel" type="reset"></button>
     </form>
 <?php endif; ?>
 <?= $menuRenderer->setCssClass('primary-nav')->setElementTag('nav')->setHeading(t('Navigation')); ?>

public/css/icinga/forms.less

@@ -53,10 +53,6 @@ input::-webkit-input-placeholder {
   color: inherit;
 }
 
-input[placeholder] {
-  color: inherit;
-}
-
 input.search {
   background: transparent url("../img/icons/search.png") no-repeat scroll 0.1em center;
   background-size: 1em 1em;

public/css/icinga/menu.less

@@ -167,7 +167,6 @@
 }
 
 // Accessibility skip links
-
 .skip-links {
   position: relative;
   ul {
@@ -178,13 +177,15 @@
       display: block;
       a, button[type="submit"] {
         background-color: @body-bg-color;
+        border: none;
         left: -999px;
         padding: @vertical-padding @horizontal-padding;
         position: absolute;
         width: 100%;
+        z-index: 1;
         &:focus {
           left: 0;
-          outline: 1px dotted black;
+          outline-offset: -3px;
         }
       }
       button[type="submit"] {
@@ -198,3 +199,63 @@
   bottom: 0 !important;
   height: auto !important;
 }
+
+.search-control {
+  position: relative;
+}
+
+.search-reset {
+  background: none;
+  border: 0;
+  cursor: pointer;
+  display: none;
+  height: 100%;
+  padding: 0;
+  position: absolute;
+  right: 0;
+  top: 0;
+  user-select: none;
+}
+
+.search-reset:focus {
+  outline: 0;
+}
+
+// Override forms.less
+input[type=text].search-input {
+  padding-right: 1.4em;
+  text-overflow: ellipsis;
+}
+
+.search-input:-moz-placeholder { // FF 18-
+  color: @gray-light;
+}
+
+.search-input::-moz-placeholder { // FF 19+
+  color: @gray-light;
+}
+
+.search-input:-ms-input-placeholder {
+  color: @gray-light;
+}
+
+.search-input::-webkit-input-placeholder {
+  color: @gray-light;
+}
+
+.search-input:valid ~ .search-reset {
+  animation-duration: .4s;
+  animation-name: search-reset-in;
+  display: block;
+}
+
+@keyframes search-reset-in {
+  0% {
+    opacity: 0;
+    transform: translate3d(-20%, 0, 0);
+  }
+  100% {
+    opacity: 1;
+    transform: none;
+  }
+}