Replace ZeroClipboard with clipboard.js.

Things left:
1. clear the selection after copy
2. add messages for success and error

docs/assets/js/src/application.js

@@ -9,7 +9,7 @@
  * details, see https://creativecommons.org/licenses/by/3.0/.
  */
 
-/* global ZeroClipboard, anchors */
+/* global Clipboard, anchors */
 
 !function ($) {
   'use strict';
@@ -36,50 +36,31 @@
       e.preventDefault()
     })
 
-    // Config ZeroClipboard
-    ZeroClipboard.config({
-      moviePath: '/assets/flash/ZeroClipboard.swf',
-      hoverClass: 'btn-clipboard-hover'
-    })
-
     // Insert copy to clipboard button before .highlight
     $('.highlight').each(function () {
-      var btnHtml = '<div class="zero-clipboard"><span class="btn-clipboard">Copy</span></div>'
+      var btnHtml = '<div class="bd-clipboard"><span class="btn-clipboard">Copy</span></div>'
       $(this).before(btnHtml)
     })
-    var zeroClipboard = new ZeroClipboard($('.btn-clipboard'))
-    var $htmlBridge = $('#global-zeroclipboard-html-bridge')
 
-    // Handlers for ZeroClipboard
-    zeroClipboard.on('load', function () {
-      $htmlBridge
-        .data('placement', 'top')
-        .attr('title', 'Copy to clipboard')
-        .tooltip()
+    var clipboard = new Clipboard('.bd-clipboard', {
+      target: function (trigger) {
+        return trigger.nextElementSibling;
+      }
+    });
 
-      // Copy to clipboard
-      zeroClipboard.on('dataRequested', function (client) {
-        var highlight = $(this).parent().nextAll('.highlight').first()
-        client.setText(highlight.text())
-      })
+    /*
+    clipboard.on('success', function (e) {
+      console.info('Action:', e.action);
+      console.info('Text:', e.text);
+      console.info('Trigger:', e.trigger);
 
-      // Notify copy success and reset tooltip title
-      zeroClipboard.on('complete', function () {
-        $htmlBridge
-          .attr('title', 'Copied!')
-          .tooltip('fixTitle')
-          .tooltip('show')
-          .attr('title', 'Copy to clipboard')
-          .tooltip('fixTitle')
-      })
-    })
+      e.clearSelection();
+    });
 
-    // Hide copy button when no Flash is found
-    // or wrong Flash version is present
-    zeroClipboard.on('noflash wrongflash', function () {
-      $('.zero-clipboard').remove()
-      ZeroClipboard.destroy()
-    })
+    clipboard.on('error', function (e) {
+      console.error('Action:', e.action);
+      console.error('Trigger:', e.trigger);
+    });*/
 
   })