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// Copyright (c) 2012 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 "ui/views/view_model.h"
#include "base/logging.h"
#include "ui/views/view.h"
namespace views {
ViewModelBase::~ViewModelBase() {
// view are owned by their parent, no need to delete them.
}
void ViewModelBase::Remove(int index) {
if (index == -1)
return;
check_index(index);
entries_.erase(entries_.begin() + index);
}
void ViewModelBase::Move(int index, int target_index) {
DCHECK_LT(index, static_cast<int>(entries_.size()));
DCHECK_GE(index, 0);
DCHECK_LT(target_index, static_cast<int>(entries_.size()));
DCHECK_GE(target_index, 0);
if (index == target_index)
return;
Entry entry(entries_[index]);
entries_.erase(entries_.begin() + index);
entries_.insert(entries_.begin() + target_index, entry);
}
void ViewModelBase::MoveViewOnly(int index, int target_index) {
if (index == target_index)
return;
if (target_index < index) {
View* view = entries_[index].view;
for (int i = index; i > target_index; --i)
entries_[i].view = entries_[i - 1].view;
entries_[target_index].view = view;
} else {
View* view = entries_[index].view;
for (int i = index; i < target_index; ++i)
entries_[i].view = entries_[i + 1].view;
entries_[target_index].view = view;
}
}
void ViewModelBase::Clear() {
Entries entries;
entries.swap(entries_);
for (size_t i = 0; i < entries.size(); ++i)
delete entries[i].view;
}
int ViewModelBase::GetIndexOfView(const View* view) const {
for (size_t i = 0; i < entries_.size(); ++i) {
if (entries_[i].view == view)
return static_cast<int>(i);
}
return -1;
}
ViewModelBase::ViewModelBase() {
}
void ViewModelBase::AddUnsafe(View* view, int index) {
DCHECK_LE(index, static_cast<int>(entries_.size()));
DCHECK_GE(index, 0);
Entry entry;
entry.view = view;
entries_.insert(entries_.begin() + index, entry);
}
} // namespace views
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