First pass on intents options UI.

chrome/browser/ui/webui/options/intents_settings_handler.cc

Index: chrome/browser/ui/webui/options/intents_settings_handler.cc
diff --git a/chrome/browser/ui/webui/options/intents_settings_handler.cc b/chrome/browser/ui/webui/options/intents_settings_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..42f4868ee144312dd2b68769646f96ada45b2400
--- /dev/null
+++ b/chrome/browser/ui/webui/options/intents_settings_handler.cc
@@ -0,0 +1,159 @@
+// Copyright (c) 2011 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/options/intents_settings_handler.h"
+
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/browsing_data_appcache_helper.h"
+#include "chrome/browser/browsing_data_database_helper.h"
+#include "chrome/browser/browsing_data_file_system_helper.h"
+#include "chrome/browser/browsing_data_indexed_db_helper.h"
+#include "chrome/browser/browsing_data_local_storage_helper.h"
+#include "chrome/browser/intents/web_intents_registry.h"
+#include "chrome/browser/intents/web_intents_registry_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/webdata/web_data_service.h"
+#include "content/browser/webui/web_ui.h"
+#include "grit/generated_resources.h"
+#include "net/url_request/url_request_context_getter.h"
+#include "ui/base/l10n/l10n_util.h"
+
+IntentsSettingsHandler::IntentsSettingsHandler() : batch_update_(false) {
+}
+
+IntentsSettingsHandler::~IntentsSettingsHandler() {
+}
+
+void IntentsSettingsHandler::GetLocalizedValues(
+    DictionaryValue* localized_strings) {
+  DCHECK(localized_strings);
+
+  static OptionsStringResource resources[] = {
+    { "intentsDomain", IDS_INTENTS_DOMAIN_COLUMN_HEADER },
+    { "intentsServiceData", IDS_INTENTS_SERVICE_DATA_COLUMN_HEADER },
+    { "manageIntents", IDS_INTENTS_MANAGE_BUTTON },
+    { "removeIntent", IDS_INTENTS_REMOVE_INTENT_BUTTON },
+  };
+
+  RegisterStrings(localized_strings, resources, arraysize(resources));
+  RegisterTitle(localized_strings, "intentsViewPage",
+                IDS_INTENTS_MANAGER_WINDOW_TITLE);
+}
+
+void IntentsSettingsHandler::RegisterMessages() {
+  web_ui_->RegisterMessageCallback("removeIntent",
+      NewCallback(this, &IntentsSettingsHandler::RemoveIntent));
+  web_ui_->RegisterMessageCallback("loadIntents",
+      NewCallback(this, &IntentsSettingsHandler::LoadChildren));
+}
+
+void IntentsSettingsHandler::TreeNodesAdded(ui::TreeModel* model,
+                                            ui::TreeModelNode* parent,
+                                            int start,
+                                            int count) {
+  SendChildren(intents_tree_model_->GetRoot());
+}
+
+void IntentsSettingsHandler::TreeNodesRemoved(ui::TreeModel* model,
+                                              ui::TreeModelNode* parent,
+                                              int start,
+                                              int count) {
+  SendChildren(intents_tree_model_->GetRoot());
+}
+
+void IntentsSettingsHandler::TreeModelBeginBatch(IntentsModel* model) {
+  batch_update_ = true;
+}
+
+void IntentsSettingsHandler::TreeModelEndBatch(IntentsModel* model) {
+  batch_update_ = false;
+
+  SendChildren(intents_tree_model_->GetRoot());
+}
+
+void IntentsSettingsHandler::EnsureIntentsModelCreated() {
+  if (intents_tree_model_.get()) return;
+
+  Profile* profile = Profile::FromWebUI(web_ui_);
+  web_data_service_ = profile->GetWebDataService(Profile::EXPLICIT_ACCESS);
+  web_intents_registry_ = WebIntentsRegistryFactory::GetForProfile(profile);
+  web_intents_registry_->Initialize(web_data_service_.get());
+  intents_tree_model_.reset(new IntentsModel(web_intents_registry_));
+  intents_tree_model_->AddIntentsTreeObserver(this);
+}
+
+void IntentsSettingsHandler::RemoveIntent(const base::ListValue* args) {
+  std::string node_path;
+  if (!args->GetString(0, &node_path)) {
+    return;
+  }
+
+  EnsureIntentsModelCreated();
+
+  IntentsTreeNode* node = intents_tree_model_->GetTreeNode(node_path);
+  if (node->Type() == IntentsTreeNode::TYPE_ORIGIN) {
+    RemoveOrigin(node);
+  } else if (node->Type() == IntentsTreeNode::TYPE_SERVICE) {
+    ServiceTreeNode* snode = static_cast<ServiceTreeNode*>(node);
+    RemoveService(snode);
+  }
+}
+
+void IntentsSettingsHandler::RemoveOrigin(IntentsTreeNode* node) {
+  // TODO(gbillock): This is a known batch update. Worth optimizing?
+  while (node->child_count() > 0) {
+    IntentsTreeNode* cnode = node->GetChild(0);
+    CHECK(cnode->Type() == IntentsTreeNode::TYPE_SERVICE);
+    ServiceTreeNode* snode = static_cast<ServiceTreeNode*>(cnode);
+    RemoveService(snode);
+  }
+  delete intents_tree_model_->Remove(node->parent(), node);
+}
+
+void IntentsSettingsHandler::RemoveService(ServiceTreeNode* snode) {
+  WebIntentData provider;
+  provider.service_url = GURL(snode->ServiceUrl());
+  provider.action = snode->Action();
+  string16 stype;
+  if (snode->Types().GetString(0, &stype)) {
+    provider.type = stype;  // Really need to iterate here.
+  }
+  provider.title = snode->ServiceName();
+  LOG(INFO) << "Removing service " << snode->ServiceName()
+            << " " << snode->ServiceUrl();
+  web_intents_registry_->UnregisterIntentProvider(provider);
+  delete intents_tree_model_->Remove(snode->parent(), snode);
+}
+
+void IntentsSettingsHandler::LoadChildren(const base::ListValue* args) {
+  EnsureIntentsModelCreated();
+
+  std::string node_path;
+  if (!args->GetString(0, &node_path)) {
+    SendChildren(intents_tree_model_->GetRoot());
+    return;
+  }
+
+  IntentsTreeNode* node = intents_tree_model_->GetTreeNode(node_path);
+  SendChildren(node);
+}
+
+void IntentsSettingsHandler::SendChildren(IntentsTreeNode* parent) {
+  // Early bailout during batch updates. We'll get one after the batch concludes
+  // with batch_update_ set false.
+  if (batch_update_) return;
+
+  ListValue* children = new ListValue;
+  intents_tree_model_->GetChildNodeList(parent, 0, parent->child_count(),
+                                        children);
+
+  ListValue args;
+  args.Append(parent == intents_tree_model_->GetRoot() ?
+      Value::CreateNullValue() :
+      Value::CreateStringValue(intents_tree_model_->GetTreeNodeId(parent)));
+  args.Append(children);
+
+  web_ui_->CallJavascriptFunction("IntentsView.loadChildren", args);
+}