#405: implement interface, widget, plumbing for time picker

2026-04-21 05:16:53 +00:00 · 2018-06-30 09:24:55 -07:00
parent 52f6389cad
commit 1c5fbc3107
24 changed files with 1156 additions and 3 deletions
@@ -0,0 +1,98 @@
+/* -*- 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 "nsCOMPtr.h"
+#include "nsPIDOMWindow.h"
+#include "nsIDocShell.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsIBaseWindow.h"
+#include "nsIWidget.h"
+
+#include "nsXPIDLString.h"
+#include "nsIServiceManager.h"
+#include "nsCOMArray.h"
+#include "nsEnumeratorUtils.h"
+#include "mozilla/Services.h"
+#include "WidgetUtils.h"
+#include "nsThreadUtils.h"
+
+#include "nsBaseTimePicker.h"
+
+using namespace mozilla::widget;
+using namespace mozilla::dom;
+
+/**
+ * A runnable to dispatch from the main thread to the main thread to display
+ * the time picker while letting the showAsync method return right away.
+*/
+class AsyncShowTimePicker : public nsRunnable
+{
+public:
+  AsyncShowTimePicker(nsITimePicker *aTimePicker,
+                      nsITimePickerShownCallback *aCallback) :
+    mTimePicker(aTimePicker),
+    mCallback(aCallback)
+  {
+  }
+
+  NS_IMETHOD Run()
+  {
+    NS_ASSERTION(NS_IsMainThread(),
+                 "AsyncShowTimePicker should be on the main thread!");
+
+    // It's possible that some widget implementations require GUI operations
+    // to be on the main thread, so that's why we're not dispatching to another
+    // thread and calling back to the main after it's done.
+    int16_t result = nsITimePicker::returnCancel;
+    nsresult rv = mTimePicker->Show(&result);
+    if (NS_FAILED(rv)) {
+      NS_ERROR("TimePicker's Show() implementation failed!");
+    }
+
+    if (mCallback) {
+      mCallback->Done(result);
+    }
+    return NS_OK;
+  }
+
+private:
+  RefPtr<nsITimePicker> mTimePicker;
+  RefPtr<nsITimePickerShownCallback> mCallback;
+};
+
+nsBaseTimePicker::nsBaseTimePicker()
+{
+}
+
+nsBaseTimePicker::~nsBaseTimePicker()
+{
+}
+
+NS_IMETHODIMP nsBaseTimePicker::Init(nsIDOMWindow *aParent,
+                                     const nsAString& aTitle)
+{
+  NS_PRECONDITION(aParent, "Null parent passed to timepicker, no time "
+                  "picker for you!");
+  nsCOMPtr<nsIWidget> widget = WidgetUtils::DOMWindowToWidget(aParent);
+  NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);
+
+  mParent = do_QueryInterface(aParent);
+  if (!mParent->IsInnerWindow()) {
+    mParent = mParent->GetCurrentInnerWindow();
+  }
+
+  InitNative(widget, aTitle);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseTimePicker::Open(nsITimePickerShownCallback *aCallback)
+{
+  nsCOMPtr<nsIRunnable> filePickerEvent =
+    new AsyncShowTimePicker(this, aCallback);
+  return NS_DispatchToMainThread(filePickerEvent);
+}