[ChromeOS] Implement collected cookies in webui.

chrome/browser/ui/webui/cookies_tree_model_adapter.cc

+// 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/cookies_tree_model_adapter.h"
+
+#include "base/scoped_ptr.h"
+#include "base/string_number_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/ui/webui/cookies_tree_model_util.h"
+#include "content/browser/webui/web_ui.h"
+#include "grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace {
+
+// Returns a unique callback name for |adapter|'s requestChildren.
+std::string GetRequestChildrenCallbackName(CookiesTreeModelAdapter* adapter) {
+  static const char kPrefixLoadCookie[] = "requestChildren";
+  return std::string(kPrefixLoadCookie) +
+         base::HexEncode(&adapter, sizeof(adapter));
+}
+
+}  // namespace
+
+CookiesTreeModelAdapter::CookiesTreeModelAdapter()
+    : web_ui_(NULL),
+      model_(NULL),
+      batch_update_(false) {
+}
+
+CookiesTreeModelAdapter::~CookiesTreeModelAdapter() {
+  if (model_)
+    model_->RemoveCookiesTreeObserver(this);
+}
+
+void CookiesTreeModelAdapter::Init(WebUI* web_ui) {
+  web_ui_ = web_ui;
+
+  web_ui_->RegisterMessageCallback(GetRequestChildrenCallbackName(this),
+      NewCallback(this, &CookiesTreeModelAdapter::RequestChildren));
+}
+
+void CookiesTreeModelAdapter::Bind(const std::string& tree_id,
+                                   CookiesTreeModel* model) {
+  DCHECK(web_ui_);  // We should have been initialized.
+  DCHECK(tree_id_.empty() && !model_);  // No existing bindings.
+
+  tree_id_ = tree_id;
+  model_ = model;
+  model_->AddCookiesTreeObserver(this);
+
+  web_ui_->CallJavascriptFunction("ui.CookiesTree.setCallback",
+      StringValue(tree_id_),
+      StringValue(GetRequestChildrenCallbackName(this)));
+
+  SendChildren(model_->GetRoot());
+}
+
+void CookiesTreeModelAdapter::TreeNodesAdded(ui::TreeModel* model,
+                                             ui::TreeModelNode* parent,
+                                             int start,
+                                             int count) {
+  // Skip if there is a batch update in progress.
+  if (batch_update_)
+    return;
+
+  CookieTreeNode* parent_node = model_->AsNode(parent);
+
+  StringValue tree_id(tree_id_);
+  scoped_ptr<Value> parend_id(GetTreeNodeId(parent_node));
+  FundamentalValue start_value(start);
+  ListValue children;
+  cookies_tree_model_util::GetChildNodeList(parent_node, start, count,
+                                            &children);
+  web_ui_->CallJavascriptFunction("ui.CookiesTree.onTreeItemAdded",
+      tree_id, *parend_id.get(), start_value, children);
+}
+
+void CookiesTreeModelAdapter::TreeNodesRemoved(ui::TreeModel* model,
+                                               ui::TreeModelNode* parent,
+                                               int start,
+                                               int count) {
+  // Skip if there is a batch update in progress.
+  if (batch_update_)
+    return;
+
+  StringValue tree_id(tree_id_);
+  scoped_ptr<Value> parend_id(GetTreeNodeId(model_->AsNode(parent)));
+  FundamentalValue start_value(start);
+  FundamentalValue count_value(count);
+  web_ui_->CallJavascriptFunction("ui.CookiesTree.onTreeItemRemoved",
+      tree_id, *parend_id.get(), start_value, count_value);
+}
+
+void CookiesTreeModelAdapter::TreeModelBeginBatch(CookiesTreeModel* model) {
+  DCHECK(!batch_update_);  // There should be no nested batch begin.
+  batch_update_ = true;
+}
+
+void CookiesTreeModelAdapter::TreeModelEndBatch(CookiesTreeModel* model) {
+  DCHECK(batch_update_);
+  batch_update_ = false;
+
+  SendChildren(model_->GetRoot());
+}
+
+void CookiesTreeModelAdapter::RequestChildren(const ListValue* args) {
+  std::string node_path;
+  CHECK(args->GetString(0, &node_path));
+
+  CookieTreeNode* node = cookies_tree_model_util::GetTreeNodeFromPath(
+      model_->GetRoot(), node_path);
+  if (node)
+    SendChildren(node);
+}
+
+void CookiesTreeModelAdapter::SendChildren(CookieTreeNode* parent) {
+  StringValue tree_id(tree_id_);
+  scoped_ptr<Value> parend_id(GetTreeNodeId(model_->AsNode(parent)));
+  ListValue children;
+  cookies_tree_model_util::GetChildNodeList(parent, 0, parent->child_count(),
+      &children);
+  web_ui_->CallJavascriptFunction("ui.CookiesTree.setChildren",
+      tree_id, *parend_id.get(), children);
+}
+
+Value* CookiesTreeModelAdapter::GetTreeNodeId(CookieTreeNode* node) {
+  if (node == model_->GetRoot())
+    return Value::CreateNullValue();
+
+  return Value::CreateStringValue(
+      cookies_tree_model_util::GetTreeNodeId(node));
+}