Move src/chrome/views to src/views. RS=darin http://crbug.com/11387

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15604 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 80 insertions, 0 deletions

diff --git a/views/controls/combo_box.h b/views/controls/combo_box.h
new file mode 100644
index 0000000..3e8eeae
--- /dev/null
+++ b/views/controls/combo_box.h
@@ -0,0 +1,80 @@
+// 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.
+
+#ifndef VIEWS_CONTROLS_COMBO_BOX_H_
+#define VIEWS_CONTROLS_COMBO_BOX_H_
+
+#include "views/controls/native_control.h"
+
+namespace views {
+////////////////////////////////////////////////////////////////////////////////
+//
+// ComboBox is a basic non editable combo box. It is initialized from a simple
+// model.
+//
+////////////////////////////////////////////////////////////////////////////////
+class ComboBox : public NativeControl {
+ public:
+  class Model {
+   public:
+    // Return the number of items in the combo box.
+    virtual int GetItemCount(ComboBox* source) = 0;
+
+    // Return the string that should be used to represent a given item.
+    virtual std::wstring GetItemAt(ComboBox* source, int index) = 0;
+  };
+
+  class Listener {
+   public:
+    // This is invoked once the selected item changed.
+    virtual void ItemChanged(ComboBox* combo_box,
+                             int prev_index,
+                             int new_index) = 0;
+  };
+
+  // |model is not owned by the combo box.
+  explicit ComboBox(Model* model);
+  virtual ~ComboBox();
+
+  // Register |listener| for item change events.
+  void SetListener(Listener* listener);
+
+  // Overridden from View.
+  virtual gfx::Size GetPreferredSize();
+  virtual bool OverrideAccelerator(const Accelerator& accelerator);
+
+  // Overridden from NativeControl
+  virtual HWND CreateNativeControl(HWND parent_container);
+  virtual LRESULT OnCommand(UINT code, int id, HWND source);
+  virtual LRESULT OnNotify(int w_param, LPNMHDR l_param);
+
+  // Inform the combo box that its model changed.
+  void ModelChanged();
+
+  // Set / Get the selected item.
+  void SetSelectedItem(int index);
+  int GetSelectedItem();
+
+ private:
+  // Update a combo box from our model.
+  void UpdateComboBoxFromModel(HWND hwnd);
+
+  // Our model.
+  Model* model_;
+
+  // The current selection.
+  int selected_item_;
+
+  // Item change listener.
+  Listener* listener_;
+
+  // The min width, in pixels, for the text content.
+  int content_width_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(ComboBox);
+};
+
+}  // namespace views
+
+#endif  // VIEWS_CONTROLS_COMBO_BOX_H_