initial

themes/next/layout/_third-party/copy-code.swig

@@ -0,0 +1,36 @@
+{% if theme.codeblock.copy_button.enable %}
+<script>
+  $('.highlight').not('.gist .highlight').each(function(i, e) {
+    var $wrap = $('<div>').addClass('highlight-wrap');
+    $(e).after($wrap);
+    $wrap.append($('<button>').addClass('copy-btn').append('{{__("post.copy_button")}}').on('click', function(e) {
+      var code = $(this).parent().find('.code').find('.line').map(function(i, e) {
+        return $(e).text();
+      }).toArray().join('\n');
+      var ta = document.createElement('textarea');
+      var yPosition = window.pageYOffset || document.documentElement.scrollTop;
+      ta.style.top = yPosition + 'px'; // Prevent page scroll
+      ta.style.position = 'absolute';
+      ta.style.opacity = '0';
+      ta.readOnly = true;
+      ta.value = code;
+      document.body.appendChild(ta);
+      ta.select();
+      ta.setSelectionRange(0, code.length);
+      ta.readOnly = false;
+      var result = document.execCommand('copy');
+      {% if theme.codeblock.copy_button.show_result %}
+        if (result) $(this).text('{{__("post.copy_success")}}');
+        else $(this).text('{{__("post.copy_failure")}}');
+      {% endif %}
+      ta.blur(); // For iOS
+      $(this).blur();
+    })).on('mouseleave', function(e) {
+      var $b = $(this).find('.copy-btn');
+      setTimeout(function() {
+        $b.text('{{__("post.copy_button")}}');
+      }, 300);
+    }).append(e);
+  })
+</script>
+{% endif %}