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// Copyright (c) 2006-2008 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 "views/controls/combobox/combobox.h"
#include "app/combobox_model.h"
#include "base/keyboard_codes.h"
#include "base/logging.h"
#include "views/controls/combobox/native_combobox_wrapper.h"
namespace views {
// static
const char Combobox::kViewClassName[] = "views/Combobox";
////////////////////////////////////////////////////////////////////////////////
// Combobox, public:
Combobox::Combobox(ComboboxModel* model)
: native_wrapper_(NULL),
model_(model),
listener_(NULL),
selected_item_(0) {
SetFocusable(true);
}
Combobox::~Combobox() {
}
void Combobox::ModelChanged() {
selected_item_ = std::min(0, model_->GetItemCount());
if (native_wrapper_)
native_wrapper_->UpdateFromModel();
}
void Combobox::SetSelectedItem(int index) {
selected_item_ = index;
if (native_wrapper_)
native_wrapper_->UpdateSelectedItem();
}
void Combobox::SelectionChanged() {
int prev_selected_item = selected_item_;
selected_item_ = native_wrapper_->GetSelectedItem();
if (listener_)
listener_->ItemChanged(this, prev_selected_item, selected_item_);
}
////////////////////////////////////////////////////////////////////////////////
// Combobox, View overrides:
gfx::Size Combobox::GetPreferredSize() {
if (native_wrapper_)
return native_wrapper_->GetPreferredSize();
return gfx::Size();
}
void Combobox::Layout() {
if (native_wrapper_) {
native_wrapper_->GetView()->SetBounds(0, 0, width(), height());
native_wrapper_->GetView()->Layout();
}
}
void Combobox::SetEnabled(bool flag) {
View::SetEnabled(flag);
if (native_wrapper_)
native_wrapper_->UpdateEnabled();
}
// VK_ESCAPE should be handled by this view when the drop down list is active.
// In other words, the list should be closed instead of the dialog.
bool Combobox::SkipDefaultKeyEventProcessing(const KeyEvent& e) {
if (e.GetCharacter() != base::VKEY_ESCAPE ||
e.IsShiftDown() || e.IsControlDown() || e.IsAltDown()) {
return false;
}
return native_wrapper_ && native_wrapper_->IsDropdownOpen();
}
void Combobox::Focus() {
// Forward the focus to the wrapper.
if (native_wrapper_)
native_wrapper_->SetFocus();
else
View::Focus(); // Will focus the RootView window (so we still get
// keyboard messages).
}
void Combobox::ViewHierarchyChanged(bool is_add, View* parent,
View* child) {
if (is_add && !native_wrapper_ && GetWidget()) {
native_wrapper_ = NativeComboboxWrapper::CreateWrapper(this);
native_wrapper_->UpdateFromModel();
native_wrapper_->UpdateEnabled();
AddChildView(native_wrapper_->GetView());
}
}
std::string Combobox::GetClassName() const {
return kViewClassName;
}
} // namespace views
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