Move ScriptBadge, ActionInfo out of Extension; preparation for BrowserAction

chrome/common/extensions/api/extension_action/script_badge_handler.cc

+// 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/common/extensions/api/extension_action/script_badge_handler.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/extensions/extension_manifest_constants.h"
+#include "chrome/common/extensions/feature_switch.h"
+#include "chrome/common/extensions/manifest_handler_helpers.h"
+
+namespace errors = extension_manifest_errors;
+
+namespace extensions {
+
+ScriptBadgeHandler::ScriptBadgeHandler() {
+}
+
+ScriptBadgeHandler::~ScriptBadgeHandler() {
+}
+
+bool ScriptBadgeHandler::Parse(const base::Value* value,
+                               Extension* extension,
+                               string16* error) {
+  scoped_ptr<ActionInfo> action_info(new ActionInfo);
+
+  // So as to not confuse developers if they specify a script badge section
+  // in the manifest, show a warning if the script badge declaration isn't
+  // going to have any effect.
+  if (!FeatureSwitch::script_badges()->IsEnabled()) {
+    extension->AddInstallWarning(
+        Extension::InstallWarning(Extension::InstallWarning::FORMAT_TEXT,
+                                  errors::kScriptBadgeRequiresFlag));
+  }
+
+  const DictionaryValue* dict = NULL;
+  if (!value->GetAsDictionary(&dict)) {
+    *error = ASCIIToUTF16(extension_manifest_errors::kInvalidScriptBadge);
+    return false;
+  }
+
+  action_info =
+      manifest_handler_helpers::LoadActionInfo(extension, dict, error);
+
+  if (!action_info.get())
+    return false;  // Failed to parse script badge definition.
+
+  // Script badges always use their extension's title and icon so users can rely
+  // on the visual appearance to know which extension is running.  This isn't
+  // bulletproof since an malicious extension could use a different 16x16 icon
+  // that matches the icon of a trusted extension, and users wouldn't be warned
+  // during installation.
+
+  if (!action_info->default_title.empty()) {
+    extension->AddInstallWarning(
+        Extension::InstallWarning(Extension::InstallWarning::FORMAT_TEXT,
+                                  errors::kScriptBadgeTitleIgnored));
+  }
+
+  if (!action_info->default_icon.empty()) {
+    extension->AddInstallWarning(
+        Extension::InstallWarning(Extension::InstallWarning::FORMAT_TEXT,
+                                  errors::kScriptBadgeIconIgnored));
+  }
+
+  SetActionInfoDefaults(extension, action_info.get());
+  ActionInfo::SetScriptBadgeInfo(extension, action_info.release());
+  return true;
+}
+
+bool ScriptBadgeHandler::HasNoKey(Extension* extension, string16* error) {
+  scoped_ptr<ActionInfo> action_info(new ActionInfo);
+  SetActionInfoDefaults(extension, action_info.get());
+  ActionInfo::SetScriptBadgeInfo(extension, action_info.release());
+  return true;
+}
+
+void ScriptBadgeHandler::SetActionInfoDefaults(const Extension* extension,
+                                               ActionInfo* info) {
+  info->default_title = extension->name();
+  info->default_icon.Clear();
+  for (size_t i = 0; i < extension_misc::kNumScriptBadgeIconSizes; ++i) {
+    std::string path = extension->icons().Get(
+        extension_misc::kScriptBadgeIconSizes[i],
+        ExtensionIconSet::MATCH_BIGGER);
+    if (!path.empty()) {
+      info->default_icon.Add(
+          extension_misc::kScriptBadgeIconSizes[i], path);
+    }
+  }
+}
+
+}  // namespace extensions