browser/components/places/PlacesUIUtils.jsm

@@ -1903,7 +1903,11 @@ XPCOMUtils.defineLazyGetter(PlacesUIUtils, "URI_FLAVORS", () => {
   return [PlacesUtils.TYPE_X_MOZ_URL, TAB_DROP_TYPE, PlacesUtils.TYPE_UNICODE];
 });
 XPCOMUtils.defineLazyGetter(PlacesUIUtils, "SUPPORTED_FLAVORS", () => {
-  return [...PlacesUIUtils.PLACES_FLAVORS, ...PlacesUIUtils.URI_FLAVORS];
+  return [
+    ...PlacesUIUtils.PLACES_FLAVORS,
+    ...PlacesUIUtils.URI_FLAVORS,
+    "application/x-torbrowser-opaque",
+  ];
 });
 
 XPCOMUtils.defineLazyGetter(PlacesUIUtils, "ellipsis", function() {

browser/components/places/content/controller.js

@@ -1251,6 +1251,7 @@ PlacesController.prototype = {
     [
       PlacesUtils.TYPE_X_MOZ_PLACE,
       PlacesUtils.TYPE_X_MOZ_URL,
+      "application/x-torbrowser-opaque",
       PlacesUtils.TYPE_UNICODE,
     ].forEach(type => xferable.addDataFlavor(type));
 

dom/base/ContentAreaDropListener.jsm

@@ -5,6 +5,16 @@
 const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
 
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
+
+XPCOMUtils.defineLazyGetter(this, "gOpaqueDrag", () => {
+  return Cc["@torproject.org/torbutton-dragDropFilter;1"].getService(
+    Ci.nsISupports
+  ).wrappedJSObject.opaqueDrag;
+});
+
 // This component is used for handling dragover and drop of urls.
 //
 // It checks to see whether a drop of a url is allowed. For instance, a url
@@ -43,10 +53,15 @@ ContentAreaDropListener.prototype = {
       }
     }
 
-    type = "text/x-moz-url";
-    if (types.contains(type)) {
+    for (let type of ["text/x-moz-url", "application/x-torbrowser-opaque"]) {
+      if (!types.contains(type)) {
+        continue;
+      }
       data = dt.mozGetDataAt(type, i);
       if (data) {
+        if (type === "application/x-torbrowser-opaque") {
+          ({ type, value: data = "" } = gOpaqueDrag.get(data));
+        }
         let lines = data.split("\n");
         for (let i = 0, length = lines.length; i < length; i += 2) {
           this._addLink(links, lines[i], lines[i + 1], type);
@@ -250,6 +265,7 @@ ContentAreaDropListener.prototype = {
     if (
       !types.includes("application/x-moz-file") &&
       !types.includes("text/x-moz-url") &&
+      !types.includes("application/x-torbrowser-opaque") &&
       !types.includes("text/uri-list") &&
       !types.includes("text/x-moz-text-internal") &&
       !types.includes("text/plain")

toolkit/components/places/PlacesUtils.jsm

@@ -32,6 +32,12 @@ XPCOMUtils.defineLazyGetter(this, "gCryptoHash", () => {
   return Cc["@mozilla.org/security/hash;1"].createInstance(Ci.nsICryptoHash);
 });
 
+XPCOMUtils.defineLazyGetter(this, "gOpaqueDrag", () => {
+  return Cc["@torproject.org/torbutton-dragDropFilter;1"].getService(
+    Ci.nsISupports
+  ).wrappedJSObject.opaqueDrag;
+});
+
 // On Mac OSX, the transferable system converts "\r\n" to "\n\n", where
 // we really just want "\n". On other platforms, the transferable system
 // converts "\r\n" to "\n".
@@ -1132,6 +1138,9 @@ var PlacesUtils = {
   unwrapNodes: function PU_unwrapNodes(blob, type) {
     // We split on "\n"  because the transferable system converts "\r\n" to "\n"
     var nodes = [];
+    if (type === "application/x-torbrowser-opaque") {
+      ({ value: blob, type } = gOpaqueDrag.get(blob));
+    }
     switch (type) {
       case this.TYPE_X_MOZ_PLACE:
       case this.TYPE_X_MOZ_PLACE_SEPARATOR:

torbutton @ a5767f29

-Subproject commit b0a2e740d6c7440cc9722358eb775c6a04f49e72
+Subproject commit a5767f29c0d509c6cb34527c091ae0c4bfc2f386