1 files changed, 178 insertions, 0 deletions
diff --git a/toolkit/xre/nsNativeAppSupportCocoa.mm b/toolkit/xre/nsNativeAppSupportCocoa.mm
new file mode 100644
index 0000000000..1fe480b699
--- /dev/null
+++ b/toolkit/xre/nsNativeAppSupportCocoa.mm
@@ -0,0 +1,178 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsString.h"
+
+#import <CoreServices/CoreServices.h>
+#import <Cocoa/Cocoa.h>
+
+#include "nsCOMPtr.h"
+#include "nsCocoaFeatures.h"
+#include "nsNativeAppSupportBase.h"
+#include "nsServiceManagerUtils.h"
+
+#include "nsIBaseWindow.h"
+#include "nsCommandLine.h"
+#include "mozIDOMWindow.h"
+#include "nsIWebNavigation.h"
+#include "nsIWidget.h"
+#include "nsIWindowMediator.h"
+#include "nsPIDOMWindow.h"
+#include "WidgetUtils.h"
+
+// This must be included last:
+#include "nsObjCExceptions.h"
+
+using mozilla::widget::WidgetUtils;
+
+nsresult GetNativeWindowPointerFromDOMWindow(mozIDOMWindowProxy* a_window,
+                                             NSWindow** a_nativeWindow) {
+  *a_nativeWindow = nil;
+  if (!a_window) return NS_ERROR_INVALID_ARG;
+
+  nsPIDOMWindowOuter* win = nsPIDOMWindowOuter::From(a_window);
+  nsCOMPtr<nsIWidget> widget = WidgetUtils::DOMWindowToWidget(win);
+  if (!widget) {
+    return NS_ERROR_FAILURE;
+  }
+
+  *a_nativeWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
+
+  return NS_OK;
+}
+
+class nsNativeAppSupportCocoa : public nsNativeAppSupportBase {
+ public:
+  nsNativeAppSupportCocoa() : mCanShowUI(false) {}
+
+  NS_IMETHOD Start(bool* aRetVal) override;
+  NS_IMETHOD ReOpen() override;
+  NS_IMETHOD Enable() override;
+
+ private:
+  bool mCanShowUI;
+};
+
+NS_IMETHODIMP
+nsNativeAppSupportCocoa::Enable() {
+  mCanShowUI = true;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsNativeAppSupportCocoa::Start(bool* _retval) {
+  int major, minor, bugfix;
+  nsCocoaFeatures::GetSystemVersion(major, minor, bugfix);
+
+  NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+  // Check that the OS version is supported, if not return false,
+  // which will make the browser quit.  In principle we could display an
+  // alert here.  But the alert's message and buttons would require custom
+  // localization.  So (for now at least) we just log an English message
+  // to the console before quitting.
+  if (major < 10 || (major == 10 && minor < 12)) {
+    NSLog(@"Minimum OS version requirement not met!");
+    return NS_OK;
+  }
+
+  *_retval = true;
+
+  return NS_OK;
+
+  NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+NS_IMETHODIMP
+nsNativeAppSupportCocoa::ReOpen() {
+  NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+  if (!mCanShowUI) return NS_ERROR_FAILURE;
+
+  bool haveNonMiniaturized = false;
+  bool haveOpenWindows = false;
+  bool done = false;
+
+  nsCOMPtr<nsIWindowMediator> wm(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
+  if (!wm) {
+    return NS_ERROR_FAILURE;
+  } else {
+    nsCOMPtr<nsISimpleEnumerator> windowList;
+    wm->GetAppWindowEnumerator(nullptr, getter_AddRefs(windowList));
+    bool more;
+    windowList->HasMoreElements(&more);
+    while (more) {
+      nsCOMPtr<nsISupports> nextWindow = nullptr;
+      windowList->GetNext(getter_AddRefs(nextWindow));
+      nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(nextWindow));
+      if (!baseWindow) {
+        windowList->HasMoreElements(&more);
+        continue;
+      } else {
+        haveOpenWindows = true;
+      }
+
+      nsCOMPtr<nsIWidget> widget = nullptr;
+      baseWindow->GetMainWidget(getter_AddRefs(widget));
+      if (!widget || !widget->IsVisible()) {
+        windowList->HasMoreElements(&more);
+        continue;
+      }
+      NSWindow* cocoaWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
+      if (![cocoaWindow isMiniaturized]) {
+        haveNonMiniaturized = true;
+        break;  // have un-minimized windows, nothing to do
+      }
+      windowList->HasMoreElements(&more);
+    }  // end while
+
+    if (!haveNonMiniaturized) {
+      // Prioritize browser windows for deminiaturization
+      nsCOMPtr<mozIDOMWindowProxy> mru;
+      wm->GetMostRecentBrowserWindow(getter_AddRefs(mru));
+
+      // Failing that, deminiaturize the most recently used window
+      if (!mru) {
+        wm->GetMostRecentWindow(nullptr, getter_AddRefs(mru));
+      }
+
+      if (mru) {
+        NSWindow* cocoaMru = nil;
+        GetNativeWindowPointerFromDOMWindow(mru, &cocoaMru);
+        if (cocoaMru) {
+          [cocoaMru deminiaturize:nil];
+          done = true;
+        }
+      }
+    }  // end if have non miniaturized
+
+    if (!haveOpenWindows && !done) {
+      char* argv[] = {nullptr};
+
+      // use an empty command line to make the right kind(s) of window open
+      nsCOMPtr<nsICommandLineRunner> cmdLine(new nsCommandLine());
+
+      nsresult rv;
+      rv = cmdLine->Init(0, argv, nullptr, nsICommandLine::STATE_REMOTE_EXPLICIT);
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      return cmdLine->Run();
+    }
+
+  }  // got window mediator
+  return NS_OK;
+
+  NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+#pragma mark -
+
+// Create and return an instance of class nsNativeAppSupportCocoa.
+nsresult NS_CreateNativeAppSupport(nsINativeAppSupport** aResult) {
+  *aResult = new nsNativeAppSupportCocoa;
+  if (!*aResult) return NS_ERROR_OUT_OF_MEMORY;
+
+  NS_ADDREF(*aResult);
+  return NS_OK;
+}