Scaffolding for an experimental discovery API letting users inject links in the recommended pane of…

chrome/browser/extensions/api/discovery/discovery_api.cc

Index: chrome/browser/extensions/api/discovery/discovery_api.cc
diff --git a/chrome/browser/extensions/api/discovery/discovery_api.cc b/chrome/browser/extensions/api/discovery/discovery_api.cc
new file mode 100644
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--- /dev/null
+++ b/chrome/browser/extensions/api/discovery/discovery_api.cc
@@ -0,0 +1,67 @@
+// 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 "chrome/browser/extensions/api/discovery/discovery_api.h"
+
+#include "base/values.h"
+#include "chrome/browser/extensions/api/discovery/suggested_link.h"
+#include "chrome/browser/extensions/api/discovery/suggested_links_registry.h"
+#include "chrome/browser/extensions/api/discovery/suggested_links_registry_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/extensions/api/experimental_discovery.h"
+#include "chrome/common/extensions/extension_error_utils.h"
+
+namespace discovery = extensions::api::experimental_discovery;
+
+namespace {
+const char kInvalidScore[] = "Invalid score, must be between 0 and 1.";
+}  // namespace
+
+namespace extensions {
+
+bool DiscoverySuggestFunction::RunImpl() {
+  scoped_ptr<discovery::Suggest::Params> params(
+      discovery::Suggest::Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params.get());
+
+  double score = 1.0;
+  if (params->details.score != NULL) {
+    score = *params->details.score;
+    if (score < 0.0 || score > 1.0) {
+      error_ = kInvalidScore;
+      return false;
+    }
+  }
+
+  extensions::SuggestedLinksRegistry* registry =
+      extensions::SuggestedLinksRegistryFactory::GetForProfile(profile());
+  scoped_ptr<extensions::SuggestedLink> suggested_link(
+      new extensions::SuggestedLink(params->details.link_url,
+                                    params->details.link_text, score));
+  registry->Add(extension_id(), suggested_link.Pass());
+  return true;
+}
+
+bool DiscoveryRemoveSuggestionFunction::RunImpl() {
+  scoped_ptr<discovery::RemoveSuggestion::Params> params(
+      discovery::RemoveSuggestion::Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params.get());
+
+  extensions::SuggestedLinksRegistry* registry =
+      extensions::SuggestedLinksRegistryFactory::GetForProfile(profile());
+  registry->Remove(extension_id(), params->link_url);
+
+  return true;
+}
+
+bool DiscoveryClearAllSuggestionsFunction::RunImpl() {
+  extensions::SuggestedLinksRegistry* registry =
+      extensions::SuggestedLinksRegistryFactory::GetForProfile(profile());
+  registry->ClearAll(extension_id());
+
+  return true;
+}
+
+}  // namespace extensions
+