| // 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. |
| |
| #ifndef UI_VIEWS_EXAMPLES_TREE_VIEW_EXAMPLE_H_ |
| #define UI_VIEWS_EXAMPLES_TREE_VIEW_EXAMPLE_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "ui/base/models/simple_menu_model.h" |
| #include "ui/base/models/tree_node_model.h" |
| #include "ui/views/context_menu_controller.h" |
| #include "ui/views/controls/button/button.h" |
| #include "ui/views/controls/tree/tree_view.h" |
| #include "ui/views/controls/tree/tree_view_controller.h" |
| #include "ui/views/examples/example_base.h" |
| |
| namespace ui { |
| class SimpleMenuModel; |
| } |
| |
| namespace views { |
| |
| class LabelButton; |
| class MenuRunner; |
| |
| namespace examples { |
| |
| class VIEWS_EXAMPLES_EXPORT TreeViewExample |
| : public ExampleBase, |
| public ButtonListener, |
| public TreeViewController, |
| public ContextMenuController, |
| public ui::SimpleMenuModel::Delegate { |
| public: |
| TreeViewExample(); |
| ~TreeViewExample() override; |
| |
| // ExampleBase: |
| void CreateExampleView(View* container) override; |
| |
| private: |
| // IDs used by the context menu. |
| enum MenuIDs { |
| ID_EDIT, |
| ID_REMOVE, |
| ID_ADD |
| }; |
| |
| // Adds a new node. |
| void AddNewNode(); |
| |
| // Non-const version of IsCommandIdEnabled. |
| bool IsCommandIdEnabled(int command_id); |
| |
| // ButtonListener: |
| void ButtonPressed(Button* sender, const ui::Event& event) override; |
| |
| // TreeViewController: |
| void OnTreeViewSelectionChanged(TreeView* tree_view) override; |
| bool CanEdit(TreeView* tree_view, ui::TreeModelNode* node) override; |
| |
| // ContextMenuController: |
| void ShowContextMenuForViewImpl(View* source, |
| const gfx::Point& point, |
| ui::MenuSourceType source_type) override; |
| |
| // SimpleMenuModel::Delegate: |
| bool IsCommandIdChecked(int command_id) const override; |
| bool IsCommandIdEnabled(int command_id) const override; |
| void ExecuteCommand(int command_id, int event_flags) override; |
| |
| // The tree view to be tested. |
| TreeView* tree_view_ = nullptr; |
| |
| // Control buttons to modify the model. |
| LabelButton* add_ = nullptr; |
| LabelButton* remove_ = nullptr; |
| LabelButton* change_title_ = nullptr; |
| |
| using NodeType = ui::TreeNodeWithValue<int>; |
| |
| ui::TreeNodeModel<NodeType> model_; |
| |
| std::unique_ptr<ui::SimpleMenuModel> context_menu_model_; |
| std::unique_ptr<MenuRunner> context_menu_runner_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TreeViewExample); |
| }; |
| |
| } // namespace examples |
| } // namespace views |
| |
| #endif // UI_VIEWS_EXAMPLES_TREE_VIEW_EXAMPLE_H_ |