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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/examples/examples_window.h"
#include <algorithm>
#include <string>
#include <utility>
#include "base/macros.h"
#include "base/memory/scoped_vector.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/base/models/combobox_model.h"
#include "ui/base/ui_base_paths.h"
#include "ui/views/background.h"
#include "ui/views/controls/combobox/combobox.h"
#include "ui/views/controls/label.h"
#include "ui/views/examples/bubble_example.h"
#include "ui/views/examples/button_example.h"
#include "ui/views/examples/checkbox_example.h"
#include "ui/views/examples/combobox_example.h"
#include "ui/views/examples/double_split_view_example.h"
#include "ui/views/examples/label_example.h"
#include "ui/views/examples/link_example.h"
#include "ui/views/examples/menu_example.h"
#include "ui/views/examples/message_box_example.h"
#include "ui/views/examples/multiline_example.h"
#include "ui/views/examples/progress_bar_example.h"
#include "ui/views/examples/radio_button_example.h"
#include "ui/views/examples/scroll_view_example.h"
#include "ui/views/examples/single_split_view_example.h"
#include "ui/views/examples/slider_example.h"
#include "ui/views/examples/tabbed_pane_example.h"
#include "ui/views/examples/table_example.h"
#include "ui/views/examples/text_example.h"
#include "ui/views/examples/textfield_example.h"
#include "ui/views/examples/throbber_example.h"
#include "ui/views/examples/tree_view_example.h"
#include "ui/views/examples/vector_example.h"
#include "ui/views/examples/widget_example.h"
#include "ui/views/layout/fill_layout.h"
#include "ui/views/layout/grid_layout.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
namespace views {
namespace examples {
typedef scoped_ptr<ScopedVector<ExampleBase> > ScopedExamples;
namespace {
// Creates the default set of examples. Caller owns the result.
ScopedExamples CreateExamples() {
ScopedExamples examples(new ScopedVector<ExampleBase>);
examples->push_back(new BubbleExample);
examples->push_back(new ButtonExample);
examples->push_back(new CheckboxExample);
examples->push_back(new ComboboxExample);
examples->push_back(new DoubleSplitViewExample);
examples->push_back(new LabelExample);
examples->push_back(new LinkExample);
examples->push_back(new MenuExample);
examples->push_back(new MessageBoxExample);
examples->push_back(new MultilineExample);
examples->push_back(new ProgressBarExample);
examples->push_back(new RadioButtonExample);
examples->push_back(new ScrollViewExample);
examples->push_back(new SingleSplitViewExample);
examples->push_back(new SliderExample);
examples->push_back(new TabbedPaneExample);
examples->push_back(new TableExample);
examples->push_back(new TextExample);
examples->push_back(new TextfieldExample);
examples->push_back(new ThrobberExample);
examples->push_back(new TreeViewExample);
examples->push_back(new VectorExample);
examples->push_back(new WidgetExample);
return examples;
}
struct ExampleTitleCompare {
bool operator() (ExampleBase* a, ExampleBase* b) {
return a->example_title() < b->example_title();
}
};
ScopedExamples GetExamplesToShow(ScopedExamples extra) {
ScopedExamples examples(CreateExamples());
if (extra.get()) {
examples->insert(examples->end(), extra->begin(), extra->end());
extra->weak_clear();
}
std::sort(examples->begin(), examples->end(), ExampleTitleCompare());
return examples;
}
} // namespace
// Model for the examples that are being added via AddExample().
class ComboboxModelExampleList : public ui::ComboboxModel {
public:
ComboboxModelExampleList() {}
~ComboboxModelExampleList() override {}
void SetExamples(ScopedExamples examples) {
example_list_.swap(*examples);
}
// ui::ComboboxModel:
int GetItemCount() const override { return example_list_.size(); }
base::string16 GetItemAt(int index) override {
return base::UTF8ToUTF16(example_list_[index]->example_title());
}
View* GetItemViewAt(int index) {
return example_list_[index]->example_view();
}
private:
ScopedVector<ExampleBase> example_list_;
DISALLOW_COPY_AND_ASSIGN(ComboboxModelExampleList);
};
class ExamplesWindowContents : public WidgetDelegateView,
public ComboboxListener {
public:
ExamplesWindowContents(Operation operation, ScopedExamples examples)
: combobox_(new Combobox(&combobox_model_)),
example_shown_(new View),
status_label_(new Label),
operation_(operation) {
instance_ = this;
combobox_->set_listener(this);
combobox_model_.SetExamples(std::move(examples));
combobox_->ModelChanged();
set_background(Background::CreateStandardPanelBackground());
GridLayout* layout = new GridLayout(this);
SetLayoutManager(layout);
ColumnSet* column_set = layout->AddColumnSet(0);
column_set->AddPaddingColumn(0, 5);
column_set->AddColumn(GridLayout::FILL, GridLayout::FILL, 1,
GridLayout::USE_PREF, 0, 0);
column_set->AddPaddingColumn(0, 5);
layout->AddPaddingRow(0, 5);
layout->StartRow(0 /* no expand */, 0);
layout->AddView(combobox_);
if (combobox_model_.GetItemCount() > 0) {
layout->StartRow(1, 0);
example_shown_->SetLayoutManager(new FillLayout());
example_shown_->AddChildView(combobox_model_.GetItemViewAt(0));
layout->AddView(example_shown_);
}
layout->StartRow(0 /* no expand */, 0);
layout->AddView(status_label_);
layout->AddPaddingRow(0, 5);
}
~ExamplesWindowContents() override {
// Delete |combobox_| first as it references |combobox_model_|.
delete combobox_;
combobox_ = NULL;
}
// Prints a message in the status area, at the bottom of the window.
void SetStatus(const std::string& status) {
status_label_->SetText(base::UTF8ToUTF16(status));
}
static ExamplesWindowContents* instance() { return instance_; }
private:
// WidgetDelegateView:
bool CanResize() const override { return true; }
bool CanMaximize() const override { return true; }
bool CanMinimize() const override { return true; }
base::string16 GetWindowTitle() const override {
return base::ASCIIToUTF16("Views Examples");
}
View* GetContentsView() override { return this; }
void WindowClosing() override {
instance_ = NULL;
if (operation_ == QUIT_ON_CLOSE)
base::MessageLoopForUI::current()->QuitWhenIdle();
}
gfx::Size GetPreferredSize() const override { return gfx::Size(800, 300); }
// ComboboxListener:
void OnPerformAction(Combobox* combobox) override {
DCHECK_EQ(combobox, combobox_);
DCHECK(combobox->selected_index() < combobox_model_.GetItemCount());
example_shown_->RemoveAllChildViews(false);
example_shown_->AddChildView(combobox_model_.GetItemViewAt(
combobox->selected_index()));
example_shown_->RequestFocus();
SetStatus(std::string());
Layout();
}
static ExamplesWindowContents* instance_;
ComboboxModelExampleList combobox_model_;
Combobox* combobox_;
View* example_shown_;
Label* status_label_;
const Operation operation_;
DISALLOW_COPY_AND_ASSIGN(ExamplesWindowContents);
};
// static
ExamplesWindowContents* ExamplesWindowContents::instance_ = NULL;
void ShowExamplesWindow(Operation operation,
gfx::NativeWindow window_context,
ScopedExamples extra_examples) {
if (ExamplesWindowContents::instance()) {
ExamplesWindowContents::instance()->GetWidget()->Activate();
} else {
ScopedExamples examples(GetExamplesToShow(std::move(extra_examples)));
Widget* widget = new Widget;
Widget::InitParams params;
params.delegate =
new ExamplesWindowContents(operation, std::move(examples));
params.context = window_context;
widget->Init(params);
widget->Show();
}
}
void LogStatus(const std::string& string) {
ExamplesWindowContents::instance()->SetStatus(string);
}
} // namespace examples
} // namespace views
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