core&ui: enhanced category selector

packages/ui-default/templates/partials/category.html

@@ -2,13 +2,13 @@
   {%- for category, sub_categories in model.system.get('problem.categories')|parseYaml -%}
     <li class="group-list__item">
       <h2 class="section__title">
-        <a href="{{ url('problem_category', category=category) }}" data-category="{{ category }}">{{ category }}</a>
+        <a href="{{ url('problem_main', query={q:'category:'+category}) }}" data-category="{{ category }}">{{ category }}</a>
       </h2>
       {% if sub_categories | length > 0 %}
         <ol class="chip-list">
           {%- for sub_category in sub_categories -%}
             <li class="chip-list__item">
-              <a class="typo-a" href="{{ url('problem_category', category=(category + ',' + sub_category)) }}">{{ sub_category }}</a>
+              <a class="typo-a" href="{{ url('problem_main', query={q:'category:'+sub_category}) }}">{{ sub_category }}</a>
             </li>
           {%- endfor -%}
         </ol>

packages/ui-default/templates/partials/problem-sidebar-information.html

@@ -11,24 +11,6 @@
     <dd>{{ pdoc.config.memoryMax if pdoc.config.memoryMax == pdoc.config.memoryMin else pdoc.config.memoryMin+'~'+pdoc.config.memoryMax }}MiB</dd>
     <dt>{{ _('Difficulty') }}</dt>
     <dd>{{ pdoc['difficulty'] or lib.difficulty(pdoc.nSubmit, pdoc.nAccept) or _('(None)') }}</dd>
-    <dt>{{ _('Category') }}</dt>
-    <dd>
-      {% if pdoc['category'] %}
-        <span class="hasjs--hide" name="problem-sidebar__categories">
-        {%- for category in pdoc['category'] -%}
-          <a href="{{ url('problem_category', category=category) }}">{{ category }}</a>
-          {% if loop.index < pdoc['category']|length %}
-            {{ _('problem-subcategory-delim') }}
-          {% endif %}
-        {%- endfor -%}
-        </span>
-        <span class="nojs--hide">
-          <a href="javascript:;" name="problem-sidebar__show-category">{{ _('page.problem_detail.sidebar.show_category') }}</a>
-        </span>
-      {% else %}
-        {{ _('(None)') }}
-      {% endif %}
-    </dd>
     <dt>{{ _('Tags') }}</dt>
     <dd>
       {{ problem.render_problem_tags(pdoc, true) }}

packages/ui-default/templates/partials/problem_lucky.html

@@ -1,6 +1,6 @@
 <div data-fragment-id="problem_lucky">
   <p>
-    <a href="{{ url('problem_random', query={category:category}) if category else url('problem_random') }}" class="expanded button" target="_blank">
+    <a href="{{ url('problem_random', query={q:qs}) if qs else url('problem_random') }}" class="expanded button" target="_blank">
       <span class="icon icon-feeling-lucky"></span> {{ _('Lucky') }}
     </a>
   </p>