Site Settings: Implement dialog for adding site exceptions.

chrome/browser/ui/webui/settings/site_settings_handler.cc

 // Copyright 2016 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/ui/webui/settings/site_settings_handler.h"
 
 #include "base/bind.h"
 #include "chrome/browser/browsing_data/browsing_data_local_storage_helper.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 44 matching lines @@
       base::Bind(&SiteSettingsHandler::HandleGetExceptionList,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "resetCategoryPermissionForOrigin",
       base::Bind(&SiteSettingsHandler::HandleResetCategoryPermissionForOrigin,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "setCategoryPermissionForOrigin",
       base::Bind(&SiteSettingsHandler::HandleSetCategoryPermissionForOrigin,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "isPatternValid",
+      base::Bind(&SiteSettingsHandler::HandleIsPatternValid,
+                 base::Unretained(this)));
 }
 
 void SiteSettingsHandler::OnGetUsageInfo(
     const storage::UsageInfoEntries& entries) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   for (const auto& entry : entries) {
     if (entry.usage <= 0) continue;
     if (entry.host == usage_host_) {
       web_ui()->CallJavascriptFunction(
@@ skipping 175 matching lines @@
   HostContentSettingsMap* map =
       HostContentSettingsMapFactory::GetForProfile(profile_);
   map->SetContentSettingCustomScope(
       ContentSettingsPattern::FromString(primary_pattern),
       secondary_pattern.empty() ?
           ContentSettingsPattern::Wildcard() :
           ContentSettingsPattern::FromString(secondary_pattern),
       content_type, "", setting);
 }
 
+void SiteSettingsHandler::HandleIsPatternValid(
+    const base::ListValue* args) {
+  CHECK_EQ(2U, args->GetSize());
+  const base::Value* callback_id;
+  CHECK(args->Get(0, &callback_id));
+  std::string pattern_string;
+  CHECK(args->GetString(1, &pattern_string));
+
+  ContentSettingsPattern pattern =
+      ContentSettingsPattern::FromString(pattern_string);
+  ResolveJavascriptCallback(
+      *callback_id, base::FundamentalValue(pattern.IsValid()));
+}
+
 }  // namespace settings