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// 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/memory/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);
StringValue tree_id_value(tree_id_);
StringValue message_name(GetRequestChildrenCallbackName(this));
web_ui_->CallJavascriptFunction("ui.CookiesTree.setCallback",
tree_id_value, message_name);
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));
}
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