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// Copyright (c) 2009 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/examples/example_base.h"
#include <stdarg.h>
#include <string>
#include "base/string_util.h"
#include "views/controls/button/text_button.h"
#include "views/controls/tabbed_pane/tabbed_pane.h"
#include "views/examples/examples_main.h"
namespace {
using views::View;
// Some of GTK based view classes require WidgetGTK in the view
// parent chain. This class is used to defer the creation of such
// views until a WidgetGTK is added to the view hierarchy.
class ContainerView : public View {
public:
explicit ContainerView(examples::ExampleBase* base)
: example_view_created_(false),
example_base_(base) {
}
protected:
// views::View overrides:
virtual void ViewHierarchyChanged(bool is_add, View* parent, View* child) {
View::ViewHierarchyChanged(is_add, parent, child);
// We're not using child == this because a Widget may not be
// availalbe when this is added to the hierarchy.
if (is_add && GetWidget() && !example_view_created_) {
example_view_created_ = true;
example_base_->CreateExampleView(this);
}
}
private:
// true if the example view has already been created, or false otherwise.
bool example_view_created_;
examples::ExampleBase* example_base_;
DISALLOW_COPY_AND_ASSIGN(ContainerView);
};
} // namespace
namespace examples {
ExampleBase::ExampleBase(ExamplesMain* main)
: main_(main) {
container_ = new ContainerView(this);
}
// Prints a message in the status area, at the bottom of the window.
void ExampleBase::PrintStatus(const wchar_t* format, ...) {
va_list ap;
va_start(ap, format);
std::wstring msg;
StringAppendV(&msg, format, ap);
main_->SetStatus(msg);
}
} // namespace examples
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