Integrate the Windows 8 code into the Chromium tree.

win8/metro_driver/toast_notification_handler.cc

Index: win8/metro_driver/toast_notification_handler.cc
diff --git a/win8/metro_driver/toast_notification_handler.cc b/win8/metro_driver/toast_notification_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..36bddd5937d6b2ca6505d3fa063a835634461134
--- /dev/null
+++ b/win8/metro_driver/toast_notification_handler.cc
@@ -0,0 +1,234 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+
+#include "win8/metro_driver/stdafx.h"
+#include "win8/metro_driver/toast_notification_handler.h"
+
+#include "base/file_path.h"
+#include "base/logging.h"
+#include "base/path_service.h"
+#include "base/utf_string_conversions.h"
+// TODO(ananta)
+// Refactor the chrome_util and shell_util code from chrome into a common lib
+#include "win8/delegate_execute/chrome_util.h"
+#include "win8/metro_driver/winrt_utils.h"
+
+typedef winfoundtn::ITypedEventHandler<
+    winui::Notifications::ToastNotification*, IInspectable*>
+    ToastActivationHandler;
+
+typedef winfoundtn::ITypedEventHandler<
+    winui::Notifications::ToastNotification*,
+    winui::Notifications::ToastDismissedEventArgs*> ToastDismissedHandler;
+
+namespace {
+
+// Helper function to return the text node root identified by the index passed
+// in.
+HRESULT GetTextNodeRoot(
+    unsigned int index,
+    winxml::Dom::IXmlDocument* xml_doc,
+    winxml::Dom::IXmlNode** node) {
+  DCHECK(xml_doc);
+  DCHECK(node);
+
+  mswr::ComPtr<winxml::Dom::IXmlElement> document_element;
+  HRESULT hr = xml_doc->get_DocumentElement(&document_element);
+  CheckHR(hr);
+
+  mswr::ComPtr<winxml::Dom::IXmlNodeList> elements;
+  mswrw::HString tag_name;
+  tag_name.Attach(MakeHString(L"text"));
+  hr = document_element->GetElementsByTagName(tag_name.Get(),
+                                              &elements);
+  CheckHR(hr);
+
+  unsigned int count = 0;
+  elements->get_Length(&count);
+
+  if (index > count) {
+    DVLOG(1) << "Invalid text node index passed in : " << index;
+    return E_FAIL;
+  }
+  hr = elements->Item(index, node);
+  CheckHR(hr);
+  return hr;
+}
+
+// Helper function to append a text element to the text section in the
+// XML document passed in.
+// The index parameter identifies which text node we append to.
+HRESULT CreateTextNode(winxml::Dom::IXmlDocument* xml_doc,
+                       int index,
+                       const string16& text_string) {
+  DCHECK(xml_doc);
+
+  mswr::ComPtr<winxml::Dom::IXmlElement> document_element;
+  HRESULT hr = xml_doc->get_DocumentElement(&document_element);
+  CheckHR(hr);
+
+  mswr::ComPtr<winxml::Dom::IXmlText> xml_text_node;
+  mswrw::HString data_hstring;
+  data_hstring.Attach(MakeHString(text_string.c_str()));
+  hr = xml_doc->CreateTextNode(data_hstring.Get(), &xml_text_node);
+  CheckHR(hr);
+
+  mswr::ComPtr<winxml::Dom::IXmlNode> created_node;
+  hr = xml_text_node.CopyTo(
+      winxml::Dom::IID_IXmlNode,
+      reinterpret_cast<void**>(created_node.GetAddressOf()));
+  CheckHR(hr);
+
+  mswr::ComPtr<winxml::Dom::IXmlNode> text_node_root;
+  hr = GetTextNodeRoot(index, xml_doc, &text_node_root);
+  CheckHR(hr);
+
+  mswr::ComPtr<winxml::Dom::IXmlNode> appended_node;
+  hr = text_node_root->AppendChild(created_node.Get(), &appended_node);
+  CheckHR(hr);
+  return hr;
+}
+
+}  // namespace
+
+ToastNotificationHandler::DesktopNotification::DesktopNotification(
+    const char* notification_origin,
+    const char* notification_icon,
+    const wchar_t* notification_title,
+    const wchar_t* notification_body,
+    const wchar_t* notification_display_source,
+    const char* notification_id)
+    : origin_url(notification_origin),
+      icon_url(notification_icon),
+      title(notification_title),
+      body(notification_body),
+      display_source(notification_display_source),
+      id(notification_id) {
+}
+
+
+ToastNotificationHandler::ToastNotificationHandler() {
+  DVLOG(1) << __FUNCTION__;
+}
+
+ToastNotificationHandler::~ToastNotificationHandler() {
+  DVLOG(1) << __FUNCTION__;
+
+  if (notifier_ && notification_)
+    CancelNotification();
+}
+
+void ToastNotificationHandler::DisplayNotification(
+    const DesktopNotification& notification) {
+  DVLOG(1) << __FUNCTION__;
+
+  DCHECK(notifier_.Get() == NULL);
+  DCHECK(notification_.Get() == NULL);
+
+  mswr::ComPtr<winui::Notifications::IToastNotificationManagerStatics>
+      toast_manager;
+
+  HRESULT hr = winrt_utils::CreateActivationFactory(
+      RuntimeClass_Windows_UI_Notifications_ToastNotificationManager,
+      toast_manager.GetAddressOf());
+  CheckHR(hr);
+
+  mswr::ComPtr<winxml::Dom::IXmlDocument> toast_xml;
+  hr = toast_manager->GetTemplateContent(
+      winui::Notifications::ToastTemplateType_ToastText02,
+      &toast_xml);
+  CheckHR(hr);
+
+  if (!toast_xml)
+    return;
+
+  mswr::ComPtr<winxml::Dom::IXmlElement> document_element;
+  hr = toast_xml->get_DocumentElement(&document_element);
+  CheckHR(hr);
+
+  if (!document_element)
+    return;
+
+  hr = CreateTextNode(toast_xml.Get(), 0, notification.title);
+  CheckHR(hr);
+
+  hr = CreateTextNode(toast_xml.Get(), 1, notification.body);
+  CheckHR(hr);
+
+  mswrw::HString duration_attribute_name;
+  duration_attribute_name.Attach(MakeHString(L"duration"));
+  mswrw::HString duration_attribute_value;
+  duration_attribute_value.Attach(MakeHString(L"long"));
+
+  hr = document_element->SetAttribute(duration_attribute_name.Get(),
+                                      duration_attribute_value.Get());
+  CheckHR(hr);
+
+  // TODO(ananta)
+  // We should set the image and launch params attribute in the notification
+  // XNL as described here: http://msdn.microsoft.com/en-us/library/hh465448
+  // To set the image we may have to extract the image and specify it in the
+  // following url form. ms-appx:///images/foo.png
+  // The launch params as described don't get passed back to us via the
+  // winapp::Activation::ILaunchActivatedEventArgs argument. Needs to be
+  // investigated.
+  mswr::ComPtr<winui::Notifications::IToastNotificationFactory>
+      toast_notification_factory;
+  hr = winrt_utils::CreateActivationFactory(
+      RuntimeClass_Windows_UI_Notifications_ToastNotification,
+      toast_notification_factory.GetAddressOf());
+  CheckHR(hr);
+
+  hr = toast_notification_factory->CreateToastNotification(
+      toast_xml.Get(), &notification_);
+  CheckHR(hr);
+
+  FilePath chrome_path;
+  if (!PathService::Get(base::FILE_EXE, &chrome_path)) {
+    NOTREACHED() << "Failed to get chrome exe path";
+    return;
+  }
+  string16 appid = delegate_execute::GetAppId(chrome_path);
+  DVLOG(1) << "Chrome Appid is " << appid.c_str();
+
+  // TODO(ananta)
+  // We should probably use BrowserDistribution here to get the product name.
+  mswrw::HString app_user_model_id;
+  app_user_model_id.Attach(MakeHString(appid));
+
+  hr = toast_manager->CreateToastNotifierWithId(app_user_model_id.Get(),
+                                                &notifier_);
+  CheckHR(hr);
+
+  hr = notification_->add_Activated(
+      mswr::Callback<ToastActivationHandler>(
+          this, &ToastNotificationHandler::OnActivate).Get(),
+      &activated_token_);
+  CheckHR(hr);
+
+  hr = notifier_->Show(notification_.Get());
+  CheckHR(hr);
+}
+
+void ToastNotificationHandler::CancelNotification() {
+  DVLOG(1) << __FUNCTION__;
+
+  DCHECK(notifier_);
+  DCHECK(notification_);
+
+  notifier_->Hide(notification_.Get());
+}
+
+HRESULT ToastNotificationHandler::OnActivate(
+    winui::Notifications::IToastNotification* notification,
+    IInspectable* inspectable) {
+  // TODO(ananta)
+  // We should pass back information from the notification like the source url
+  // etc to ChromeAppView which would enable it to ensure that the
+  // correct tab in chrome is activated.
+  DVLOG(1) << __FUNCTION__;
+  return S_OK;
+}