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// Copyright 2015 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 "components/webui_generator/view_model.h"
#include "components/webui_generator/view.h"
namespace webui_generator {
ViewModel::ContextEditor::ContextEditor(ViewModel& view_model)
: view_model_(view_model), context_(view_model_.context()) {
}
ViewModel::ContextEditor::~ContextEditor() {
view_model_.CommitContextChanges();
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetBoolean(
const KeyType& key,
bool value) const {
context_.SetBoolean(key, value);
return *this;
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetInteger(
const KeyType& key,
int value) const {
context_.SetInteger(key, value);
return *this;
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetDouble(
const KeyType& key,
double value) const {
context_.SetDouble(key, value);
return *this;
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetString(
const KeyType& key,
const std::string& value) const {
context_.SetString(key, value);
return *this;
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetString(
const KeyType& key,
const base::string16& value) const {
context_.SetString(key, value);
return *this;
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetStringList(
const KeyType& key,
const StringList& value) const {
context_.SetStringList(key, value);
return *this;
}
const ViewModel::ContextEditor& ViewModel::ContextEditor::SetString16List(
const KeyType& key,
const String16List& value) const {
context_.SetString16List(key, value);
return *this;
}
ViewModel::ViewModel() : view_(nullptr) {
}
ViewModel::~ViewModel() {
}
void ViewModel::SetView(View* view) {
view_ = view;
Initialize();
}
void ViewModel::OnChildrenReady() {
OnAfterChildrenReady();
view_->OnViewModelReady();
}
void ViewModel::UpdateContext(const base::DictionaryValue& diff) {
std::vector<std::string> changed_keys;
context_.ApplyChanges(diff, &changed_keys);
OnContextChanged(changed_keys);
}
void ViewModel::OnEvent(const std::string& event) {
}
ViewModel::ContextEditor ViewModel::GetContextEditor() {
return ContextEditor(*this);
}
void ViewModel::CommitContextChanges() {
if (!context().HasChanges())
return;
base::DictionaryValue diff;
context().GetChangesAndReset(&diff);
view_->OnContextChanged(diff);
}
} // namespace webui_generator
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