gistfile1.txt

daleharvey@DESKTOP-UELI0OF ~/src/gecko-dev
$ ./mach build
 0:03.58 Clobber not needed.
 0:03.58 Adding make options from c:\Users\daleharvey\src\gecko-dev\.mozconfig
    MOZ_OBJDIR=c:/Users/daleharvey/src/gecko-dev/obj-i686-pc-mingw32
    OBJDIR=c:/Users/daleharvey/src/gecko-dev/obj-i686-pc-mingw32
    FOUND_MOZCONFIG=c:/Users/daleharvey/src/gecko-dev/.mozconfig
    export FOUND_MOZCONFIG
 0:03.94 c:\mozilla-build\mozmake\mozmake.EXE -f client.mk -s
 0:07.47 Elapsed: 0.48s; From dist/idl: Kept 0 existing; Added/updated 891; Removed 0 files and 0 directories.
 0:07.86 Elapsed: 0.00s; From dist/public: Kept 0 existing; Added/updated 0; Removed 0 files and 0 directories.
 0:08.33 Elapsed: 0.03s; From dist/private: Kept 0 existing; Added/updated 0; Removed 0 files and 0 directories.
 0:09.30 Elapsed: 0.08s; From dist/xpi-stage: Kept 9 existing; Added/updated 0; Removed 0 files and 0 directories.
 0:10.31 Elapsed: 3.34s; From dist/include: Kept 0 existing; Added/updated 5438; Removed 0 files and 0 directories.
 0:11.31 Elapsed: 1.05s; From _tests: Kept 0 existing; Added/updated 1013; Removed 0 files and 0 directories.
 0:12.42 Elapsed: 1.59s; From dist/bin: Kept 0 existing; Added/updated 2084; Removed 0 files and 0 directories.
 0:20.78 Elapsed: 0.34s; From ../../dist/idl: Kept 0 existing; Added/updated 891; Removed 0 files and 0 directories.
 0:32.19 force-cargo-library-build
 0:35.12     Finished release [optimized] target(s) in 0.39 secs
 0:59.17 WindowsUIUtils.cpp
 0:59.25 c:/Users/daleharvey/src/gecko-dev/widget/windows/WindowsUIUtils.cpp(221): error C2039: 'IDataTransferManagerInterop': is not a member of 'ABI::Windows::ApplicationModel::DataTransfer'
 0:59.31 C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt\windows.applicationmodel.datatransfer.h(4755): note: see declaration of 'ABI::Windows::ApplicationModel::DataTransfer'
 0:59.36 c:/Users/daleharvey/src/gecko-dev/widget/windows/WindowsUIUtils.cpp(224): error C2039: 'ShowShareUIForWindow': is not a member of 'Microsoft::WRL::ComPtr<IDataTransferManagerInterop>'
 0:59.42 c:/Users/daleharvey/src/gecko-dev/widget/windows/WindowsUIUtils.cpp(221): note: see declaration of 'Microsoft::WRL::ComPtr<IDataTransferManagerInterop>'
 0:59.48 mozmake.EXE[4]: *** [c:/Users/daleharvey/src/gecko-dev/config/rules.mk:1026: WindowsUIUtils.obj] Error 2
 0:59.56 mozmake.EXE[3]: *** [c:/Users/daleharvey/src/gecko-dev/config/recurse.mk:73: widget/windows/target] Error 2
 0:59.65 mozmake.EXE[3]: *** Waiting for unfinished jobs....
 0:59.73 mozmake.EXE[2]: *** [c:/Users/daleharvey/src/gecko-dev/config/recurse.mk:33: compile] Error 2
 0:59.83 mozmake.EXE[1]: *** [c:/Users/daleharvey/src/gecko-dev/config/rules.mk:418: default] Error 2
 0:59.87 mozmake.EXE: *** [client.mk:168: build] Error 2
 0:59.94 123 compiler warnings present.

daleharvey@DESKTOP-UELI0OF ~/src/gecko-dev
$ git diff
diff --git a/browser/base/content/browser-pageActions.js b/browser/base/content/browser-pageActions.js
index 47beadd53c..846d39cc3b 100644
--- a/browser/base/content/browser-pageActions.js
+++ b/browser/base/content/browser-pageActions.js
@@ -1271,6 +1271,12 @@ BrowserPageActions.shareURL = {
       .getService(Ci.nsIMacSharingService);
   },

+  onCommand(event, buttonNode) {
+    let windowsUIUtils = Cc["@mozilla.org/windows-ui-utils;1"]
+      .getService(Ci.nsIWindowUIUtils);
+    windowsUIUtils.shareUrl();
+  },
+
   onShowingInPanel(buttonNode) {
     this._cached = false;
   },
diff --git a/browser/modules/PageActions.jsm b/browser/modules/PageActions.jsm
index ff21ef45f4..f07466557f 100644
--- a/browser/modules/PageActions.jsm
+++ b/browser/modules/PageActions.jsm
@@ -1187,6 +1187,21 @@ if (AppConstants.platform == "macosx") {
   });
 }

+if (AppConstants.platform == "win") {
+  gBuiltInActions.push(
+  // Share URL
+  {
+    id: "shareURL",
+    title: "shareURL-title",
+    onPlacedInPanel(buttonNode) {
+      browserPageActions(buttonNode).shareURL.onPlacedInPanel(buttonNode);
+    },
+    onCommand(event, buttonNode) {
+      browserPageActions(buttonNode).shareURL.onCommand(event, buttonNode);
+    },
+  });
+}
+
 /**
  * Gets a BrowserPageActions object in a browser window.
  *
diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
index 7b02e76b18..59bdb10fce 100644
--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -582,6 +582,10 @@ html|*.urlbar-input:-moz-lwtheme::placeholder,
   color: GrayText;
 }

+#pageAction-panel-shareURL {
+  list-style-image: url("chrome://browser/skin/share.svg");
+}
+
 %include ../shared/urlbarSearchSuggestionsNotification.inc.css

 #search-container {
@@ -1114,4 +1118,3 @@ panel[touchmode] .PanelUI-subView #appMenu-zoom-controls > .subviewbutton-iconic
   padding-top: .9167em;
   padding-bottom: .9167em;
 }
-
diff --git a/browser/themes/windows/jar.mn b/browser/themes/windows/jar.mn
index 150d922487..bbe1f7512e 100644
--- a/browser/themes/windows/jar.mn
+++ b/browser/themes/windows/jar.mn
@@ -49,6 +49,7 @@ browser.jar:
 * skin/classic/browser/preferences/in-content/preferences.css  (preferences/in-content/preferences.css)
 * skin/classic/browser/preferences/in-content/dialog.css       (preferences/in-content/dialog.css)
   skin/classic/browser/preferences/applications.css            (preferences/applications.css)
+  skin/classic/browser/share.svg                               (share.svg)
   skin/classic/browser/tabbrowser/tabDragIndicator.png         (tabbrowser/tabDragIndicator.png)
   skin/classic/browser/window-controls/close.svg                 (window-controls/close.svg)
   skin/classic/browser/window-controls/close-highcontrast.svg    (window-controls/close-highcontrast.svg)
diff --git a/widget/nsIWindowsUIUtils.idl b/widget/nsIWindowsUIUtils.idl
index 331562a672..353885caea 100644
--- a/widget/nsIWindowsUIUtils.idl
+++ b/widget/nsIWindowsUIUtils.idl
@@ -6,6 +6,7 @@

 #include "nsISupports.idl"

+interface mozIDOMWindowProxy;

 [scriptable, uuid(aa8a0ecf-96a1-418c-b80e-f24ae18bbedc)]
 interface nsIWindowsUIUtils : nsISupports
@@ -20,5 +21,9 @@ interface nsIWindowsUIUtils : nsISupports
    * Update the tablet mode state
    */
   void updateTabletModeState();
-};

+  /**
+   * Share URL
+   */
+  void shareUrl();
+};
diff --git a/widget/windows/WindowsUIUtils.cpp b/widget/windows/WindowsUIUtils.cpp
index 4d916d25cf..1227ee10ce 100644
--- a/widget/windows/WindowsUIUtils.cpp
+++ b/widget/windows/WindowsUIUtils.cpp
@@ -22,6 +22,19 @@
 #include "nsString.h"
 #include "nsIWidget.h"

+#include <wrl/client.h>
+#include <wrl/wrappers/corewrappers.h>
+#include <windows.applicationmodel.datatransfer.h>
+#include <tchar.h>
+#include <roapi.h>
+#include "shlobj.h"
+#include "shobjidl.h"
+
+namespace WRL = Microsoft::WRL;
+namespace dt = ABI::Windows::ApplicationModel::DataTransfer;
+
+using Microsoft::WRL::Wrappers::HStringReference;
+
 /* mingw currently doesn't support windows.ui.viewmanagement.h, so we disable it until it's fixed. */
 #ifndef __MINGW32__

@@ -78,6 +91,8 @@ namespace ABI {
 }
 #endif

+
+
 #ifndef IUIViewSettingsInterop

 typedef interface IUIViewSettingsInterop IUIViewSettingsInterop;
@@ -92,6 +107,25 @@ public:

 #endif

+#ifndef IDataTransferManagerInterop
+
+typedef interface IDataTransferManagerInterop IDataTransferManagerInterop;
+
+MIDL_INTERFACE("3A3DCD6C-3EAB-43DC-BCDE-45671CE800C8")
+IDataTransferManagerInterop : public IUnknown
+{
+public:
+    virtual HRESULT STDMETHODCALLTYPE GetForWindow(
+        /* [in] */ __RPC__in HWND appWindow,
+        /* [in] */ __RPC__in REFIID riid,
+        /* [iid_is][retval][out] */ __RPC__deref_out_opt void **dataTransferManager) = 0;
+
+    virtual HRESULT STDMETHODCALLTYPE ShowShareUIForWindow(
+        /* [in] */ __RPC__in HWND appWindow) = 0;
+
+};
+#endif
+
 WindowsUIUtils::WindowsUIUtils() :
   mInTabletMode(eTabletModeUnknown)
 {
@@ -178,3 +212,23 @@ WindowsUIUtils::UpdateTabletModeState()

   return NS_OK;
 }
+
+NS_IMETHODIMP
+WindowsUIUtils::ShareUrl()
+{
+#ifndef __MINGW32__
+  if (!IsWin10OrLater()) {
+    return NS_OK;
+  }
+#endif
+
+  HWND hwnd = GetForegroundWindow();
+
+  WRL::ComPtr<dt::IDataTransferManagerInterop> dtmInterop;
+  RoGetActivationFactory(HStringReference(
+    RuntimeClass_Windows_ApplicationModel_DataTransfer_DataTransferManager).Get(), IID_PPV_ARGS(&dtmInterop));
+  dtmInterop.ShowShareUIForWindow(hwnd);
+
+  //ABI::Windows::ApplicationModel::DataTransfer::DataTransferManager::ShowShareUI();
+  return NS_OK;
+}