Now that the UI layer is accessible cross-platform, coalesce the DesktopNotif...

chrome/browser/notifications/desktop_notification_service.cc

Index: chrome/browser/notifications/desktop_notification_service.cc
===================================================================
--- chrome/browser/notifications/desktop_notification_service.cc	(revision 30623)
+++ chrome/browser/notifications/desktop_notification_service.cc	(working copy)
@@ -6,12 +6,15 @@
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
+#include "base/string_piece.h"
+#include "base/string_util.h"
 #include "base/thread.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_object_proxy.h"
+#include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/notifications/notifications_prefs_cache.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
@@ -24,13 +27,50 @@
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/common/render_messages.h"
-#include "webkit/api/public/WebNotificationPresenter.h"
+#include "grit/browser_resources.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
+#include "webkit/api/public/WebNotificationPresenter.h"
 
 using WebKit::WebNotificationPresenter;
 
+// Creates a data:xxxx URL which contains the full HTML for a notification
+// using supplied icon, title, and text, run through a template which contains
+// the standard formatting for notifications.
+static string16 CreateDataUrl(const GURL& icon_url, const string16& title,
+    const string16& body) {
+  const base::StringPiece template_html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+          IDR_NOTIFICATION_HTML));
+
+  if (template_html.empty()) {
+    NOTREACHED() << "unable to load template. ID: " << IDR_NOTIFICATION_HTML;
+    return EmptyString16();
+  }
+
+  std::vector<string16> subst;
+  if (icon_url.is_valid())
+    subst.push_back(UTF8ToUTF16(icon_url.spec()));
+  else
+    subst.push_back(EmptyString16());
+
+  subst.push_back(title);
+  subst.push_back(body);
+
+  if (icon_url.is_valid()) {
+    subst.push_back(ASCIIToUTF16("block"));
+    subst.push_back(ASCIIToUTF16("60"));
+  } else {
+    subst.push_back(ASCIIToUTF16("none"));
+    subst.push_back(ASCIIToUTF16("5"));
+  }
+
+  string16 format_string = ASCIIToUTF16("data:text/html;charset=utf-8,"
+                                        + template_html.as_string());
+  return ReplaceStringPlaceholders(format_string, subst, NULL);
+}
+
 // A task object which calls the renderer to inform the web page that the
 // permission request has completed.
 class NotificationPermissionCallbackTask : public Task {
@@ -228,3 +268,37 @@
   tab->AddInfoBar(new NotificationPermissionInfoBarDelegate(tab, origin,
                                                             callback_context));
 }
+
+void DesktopNotificationService::ShowNotification(
+    const Notification& notification) {
+  ui_manager_->Add(notification, profile_);
+}
+
+bool DesktopNotificationService::ShowDesktopNotification(
+    const GURL& origin, const GURL& url, int process_id, int route_id,
+    NotificationSource source, int notification_id) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
+  NotificationObjectProxy* proxy =
+      new NotificationObjectProxy(process_id, route_id,
+                                  notification_id,
+                                  source == WorkerNotification);
+  Notification notif(origin, url, proxy);
+  ShowNotification(notif);
+  return true;
+}
+
+bool DesktopNotificationService::ShowDesktopNotificationText(
+    const GURL& origin, const GURL& icon, const string16& title,
+    const string16& text, int process_id, int route_id,
+    NotificationSource source, int notification_id) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
+  NotificationObjectProxy* proxy =
+      new NotificationObjectProxy(process_id, route_id,
+                                  notification_id,
+                                  source == WorkerNotification);
+  // "upconvert" the string parameters to a data: URL.
+  string16 data_url = CreateDataUrl(icon, title, text);
+  Notification notif(origin, GURL(data_url), proxy);
+  ShowNotification(notif);
+  return true;
+}