Issue 380 - Fixed width of bubble in Safari with long translated texts

safari/ext/popup.js

 (function()
 {
   // Safari doesn't adjust the size of the popover automatically to the size
   // of its content, like when the ad counter is expanded/collapsed. So we add
   // event listeners to do so.
   var mayResize = true;
   var resizingScheduled = false;
 
   var updateSize = function()
   {
     if (mayResize && !resizingScheduled)
     {
       setTimeout(function()
       {
-        safari.self.width = document.body.offsetWidth;
+        safari.self.width = document.body.scrollWidth;
         safari.self.height = document.body.offsetHeight;
 
         resizingScheduled = false;
       }, 0);
 
       resizingScheduled = true;
     }
   };
 
   window.addEventListener("load", function()
   {
     updateSize();
 
     var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
     if (MutationObserver)
     {
       new MutationObserver(updateSize).observe(document, {
         childList: true, attributes: true,
         characterData: true, subtree: true
       });
     }
     else
       document.addEventListener("DOMSubtreeModified", updateSize);
   });
 
+  // when using "white-space: nowrap", the overflown text overlaps the padding
+  // and neither clientWidth nor scrollWidth, we rely on when adjusting the size
+  // of the popover, inlcudes the overlapped area. So we have to use additional
+  // placeholders, in order to preserve padding. Since the dimensions of the
+  // popover are automatically correctly adjusted on Chrome, those placeholders
+  // would add extra empty space and therefore must only be rendered on Safari.
+  var style = document.createElement("style");
+  style.textContent = ".safari-inline-block { display: inline-block; }";
+  document.head.appendChild(style);
+
 
   // Safari will load the popover once, and then show it everytime the icon is
   // clicked. While Chrome loads it everytime you click the icon. So in order to
   // make the popover show the right state and details, we have to emulate the
   // same behavior as on Chrome, by reloading the popover every time it is shown.
   safari.self.addEventListener("popover", function()
   {
     mayResize = false;
     document.documentElement.style.display = "none";
     document.location.reload();
@@ skipping 14 matching lines @@
   // the reloading code above.
   window.ext = {
     __proto__: safari.extension.globalPage.contentWindow.ext,
 
     closePopup: function()
     {
       safari.self.hide();
     }
   };
 })();