[simple theme] refactor search form

* update search input form params; inspiried by whoogle
* remove autofocus from result page input form (JS impl. as well as input param)
-> autofocus on landing page still works only on desktop and tablet with JS impl.
* update landing page margins on mobile
* rework border and radius for search form to 0.8rem and outline
* remove positioning from autocomplete JS lib and use CSS impl.
* match search box and autocomplete width
* rework search form to a google like design on mobile
* fix settings icon display withg RTL on mobile on result page when search input is empty

1 files changed, 54 insertions, 35 deletions

diff --git a/searx/static/themes/simple/src/less/search.less b/searx/static/themes/simple/src/less/search.less
index 62fda55b7..ee06a74c4 100644
--- a/searx/static/themes/simple/src/less/search.less
+++ b/searx/static/themes/simple/src/less/search.less
@@ -89,10 +89,14 @@
   }
 }
 
-.search_box {
-  margin: 0;
-  padding: 0;
+#search_view {
   grid-area: search;
+}
+
+.search_box {
+  border: 1px solid var(--color-search-border);
+  border-radius: 0.8rem;
+  width: @search-width;
   display: inline-flex;
   flex-direction: row;
   white-space: nowrap;
@@ -102,18 +106,14 @@
   display: block;
   border-collapse: separate;
   box-sizing: border-box;
-  width: 1.8em;
+  width: 1.8rem;
   margin: 0;
-  padding: 8px 2px;
+  padding: 0.8rem 0.2rem;
   background: none repeat scroll 0 0 var(--color-search-background);
-  border-top: 1px solid var(--color-search-border);
-  border-bottom: 1px solid var(--color-search-border);
-  border-right: none;
-  border-left: none;
-  border-radius: 0;
+  border: none;
   outline: none;
   color: var(--color-search-font);
-  font-size: 16px;
+  font-size: 1.1rem;
   z-index: 10000;
 
   &:hover {
@@ -131,27 +131,22 @@ html.no-js #clear_search.hide_if_nojs {
 
 #q,
 #send_search {
-  display: block !important;
-  border-collapse: separate;
-  box-sizing: border-box;
+  display: block;
   margin: 0;
-  padding: 10px;
+  padding: 0.8rem;
   background: none repeat scroll 0 0 var(--color-search-background);
-  border: 1px solid var(--color-search-border);
-  border-radius: 0;
+  border: none;
   outline: none;
   color: var(--color-search-font);
-  font-size: 16px;
+  font-size: 1.1rem;
   z-index: 2;
 }
 
 #q {
-  outline: medium none;
-  .ltr-padding-left(12px);
+  width: 100%;
+  .ltr-padding-left(1rem);
   .ltr-padding-right(0) !important;
-  .ltr-border-right(none);
-  width: @search-width;
-  .ltr-rounded-left-corners(10px);
+  .ltr-rounded-left-corners(0.8rem);
 }
 
 #q::-ms-clear,
@@ -160,8 +155,7 @@ html.no-js #clear_search.hide_if_nojs {
 }
 
 #send_search {
-  .ltr-border-left(none);
-  .ltr-rounded-right-corners(10px);
+  .ltr-rounded-right-corners(0.8rem);
 
   &:hover {
     cursor: pointer;
@@ -174,7 +168,6 @@ html.no-js #clear_search.hide_if_nojs {
 .no-js #send_search {
   width: auto !important;
   .ltr-border-left(1px solid var(--color-search-border));
-  padding: 10px;
 }
 
 .search_filters {
@@ -259,10 +252,9 @@ html.no-js #clear_search.hide_if_nojs {
   }
 
   .search_box {
-    // hack, should be 100% ?
-    width: 99%;
+    width: 98%;
     display: flex;
-    flex-direction: row;
+    margin: 0 auto;
   }
 
   #q {
@@ -270,11 +262,6 @@ html.no-js #clear_search.hide_if_nojs {
     flex: 1;
   }
 
-  #main_results #q:placeholder-shown ~ #send_search {
-    margin-right: 2.6rem;
-    transition: margin-right 0.1s; // FIX RTL
-  }
-
   .search_filters {
     margin: 0;
   }
@@ -285,7 +272,7 @@ html.no-js #clear_search.hide_if_nojs {
     margin: 0;
 
     label {
-      padding: 0.8rem !important;
+      padding: 1rem !important;
       margin: 0 !important;
 
       svg {
@@ -293,6 +280,38 @@ html.no-js #clear_search.hide_if_nojs {
       }
     }
   }
+
+  #search_view:focus-within {
+    display: block;
+    background-color: var(--color-base-background);
+    position: absolute;
+    top: 0;
+    height: 100%;
+    width: 100%;
+    z-index: 10000;
+
+    .search_box {
+      border-top: none;
+      border-left: none;
+      border-right: none;
+      width: 100%;
+      border-radius: 0;
+
+      #send_search {
+        .ltr-margin-right(0) !important; // Delete when send_search button is disabled on mobile.
+      }
+
+      * {
+        border: none;
+        border-radius: 0;
+      }
+    }
+  }
+
+  #main_results #q:placeholder-shown ~ #send_search {
+    .ltr-margin-right(2.6rem);
+    transition: margin 0.1s;
+  }
 }
 
 @media screen and (max-width: @ultra-small-phone) {