Initial implementation of ColorChooser for Aura.

ui/views/color_chooser/color_chooser_view.h

+// 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_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_
+#define UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "third_party/skia/include/core/SkColor.h"
+#include "third_party/skia/include/core/SkScalar.h"
+#include "ui/views/controls/textfield/textfield_controller.h"
+#include "ui/views/views_export.h"
+#include "ui/views/widget/widget_delegate.h"
+
+namespace views {
+
+class ColorChooserListener;
+class KeyEvent;
+class Textfield;
+
+// Pure views implementation of color chooser UI.

[Peter Kasting, 2012/06/18 21:24:03]

More comments would be nice, especially something describing the layout briefly.

[Jun Mukai, 2012/06/19 08:40:01]

Done.

+class VIEWS_EXPORT ColorChooserView : public WidgetDelegateView,

[Peter Kasting, 2012/06/18 21:24:03]

Nit: Alphabetical order

[tfarina, 2012/06/18 21:45:41]

I know the order doesn't matter, but I tend to think that there is some
precedence order (implicit) here. The ColorChooserView IS-A WidgetDelegateView
and that information is more important/relevant than knowing that it's a
TextfieldController (when grepping?). But that is just how I see this, other
might have different opinion.

[Peter Kasting, 2012/06/19 00:48:40]

It IS-A TextfieldController too.  That's what inheritance means.

The style guide is not explicit, but for e.g. #includes (another case where we
can have a list of strings at the same scope/indentation level), the direction
is to be alphabetical; applying this rule to subclass names seems reasonable
too, in the absence of a clear and easy-to-define alternative complete ordering.

[Jun Mukai, 2012/06/19 08:40:01]

Either is fine to me.  As far as I see in the discussion, I keep this order for
the consistency with views files.

+                                      public TextfieldController {
+ public:
+  ColorChooserView(ColorChooserListener* listener, SkColor initial_color);
+  virtual ~ColorChooserView();
+
+  // Called when its owning window is closed.
+  void OnOwningWindowClosed();
+
+  // Called when its color value is changed in the web contents.
+  void OnColorChanged(SkColor color);
+
+  // Called when the user chooses a hue from the UI.
+  void OnHueChosen(float hue);
+
+  // Called when the user chooses saturation/value from the UI.
+  void OnSaturationValueChosen(float saturation, float value);
+
+  float hue() const { return hsv_[0]; }
+  float saturation() const { return hsv_[1]; }
+  float value() const { return hsv_[2]; }
+
+ private:
+  class HueView;
+  class SaturationValueView;
+
+  // WidgetDelegate overrides:
+  virtual ui::ModalType GetModalType() const OVERRIDE;
+  virtual void WindowClosing() OVERRIDE;
+  virtual View* GetContentsView() OVERRIDE;
+
+  // TextfieldController overrides:
+  virtual void ContentsChanged(Textfield* sender,
+                               const string16& new_contents) OVERRIDE;
+  virtual bool HandleKeyEvent(Textfield* sender,
+                              const KeyEvent& key_event) OVERRIDE;
+
+  SkScalar hsv_[3];
+  ColorChooserListener* listener_;
+  HueView* hue_;
+  SaturationValueView* saturation_value_;
+  Textfield* textfield_;
+
+  DISALLOW_COPY_AND_ASSIGN(ColorChooserView);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_