ui: Move NativeTheme files into ui/base/native_theme/ directory.

ui/gfx/native_theme.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_GFX_NATIVE_THEME_H_
-#define UI_GFX_NATIVE_THEME_H_
-#pragma once
-
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/base/ui_export.h"
-#include "ui/gfx/native_widget_types.h"
-
-class SkCanvas;
-
-namespace gfx {
-
-class Rect;
-class Size;
-
-// This class supports drawing UI controls (like buttons, text fields, lists,
-// comboboxes, etc) that look like the native UI controls of the underlying
-// platform, such as Windows or Linux. It also supplies default colors for
-// dialog box backgrounds, etc., which are obtained from the system theme where
-// possible.
-//
-// The supported control types are listed in the Part enum.  These parts can be
-// in any state given by the State enum, where the actual definition of the
-// state is part-specific. The supported colors are listed in the ColorId enum.
-//
-// Some parts require more information than simply the state in order to be
-// drawn correctly, and this information is given to the Paint() method via the
-// ExtraParams union.  Each part that requires more information has its own
-// field in the union.
-//
-// NativeTheme also supports getting the default size of a given part with
-// the GetPartSize() method.
-class UI_EXPORT NativeTheme {
- public:
-  // The part to be painted / sized.
-  enum Part {
-    kCheckbox,
-    kInnerSpinButton,
-    kMenuList,
-    kMenuCheck,
-    kMenuCheckBackground,
-    kMenuPopupArrow,
-    kMenuPopupBackground,
-    kMenuPopupGutter,
-    kMenuPopupSeparator,
-    kMenuItemBackground,
-    kProgressBar,
-    kPushButton,
-    kRadio,
-
-    // The order of the arrow enums is important, do not change without also
-    // changing the code in platform implementations.
-    kScrollbarDownArrow,
-    kScrollbarLeftArrow,
-    kScrollbarRightArrow,
-    kScrollbarUpArrow,
-
-    kScrollbarHorizontalThumb,
-    kScrollbarVerticalThumb,
-    kScrollbarHorizontalTrack,
-    kScrollbarVerticalTrack,
-    kScrollbarHorizontalGripper,
-    kScrollbarVerticalGripper,
-    kSliderTrack,
-    kSliderThumb,
-    kTabPanelBackground,
-    kTextField,
-    kTrackbarThumb,
-    kTrackbarTrack,
-    kWindowResizeGripper,
-    kMaxPart,
-  };
-
-  // The state of the part.
-  enum State {
-    kDisabled,
-    kHovered,
-    kNormal,
-    kPressed,
-    kMaxState,
-  };
-
-  // Each structure below holds extra information needed when painting a given
-  // part.
-
-  struct ButtonExtraParams {
-    bool checked;
-    bool indeterminate;  // Whether the button state is indeterminate.
-    bool is_default;  // Whether the button is default button.
-    bool has_border;
-    int classic_state;  // Used on Windows when uxtheme is not available.
-    SkColor background_color;
-  };
-
-  struct InnerSpinButtonExtraParams {
-    bool spin_up;
-    bool read_only;
-    int classic_state;  // Used on Windows when uxtheme is not available.
-  };
-
-  struct MenuArrowExtraParams {
-    bool pointing_right;
-    // Used for the disabled state to indicate if the item is both disabled and
-    // selected.
-    bool is_selected;
-  };
-
-  struct MenuCheckExtraParams {
-    bool is_radio;
-    // Used for the disabled state to indicate if the item is both disabled and
-    // selected.
-    bool is_selected;
-  };
-
-  struct MenuItemExtraParams {
-    bool is_selected;
-  };
-
-  struct MenuListExtraParams {
-    bool has_border;
-    bool has_border_radius;
-    int arrow_x;
-    int arrow_y;
-    SkColor background_color;
-    int classic_state;  // Used on Windows when uxtheme is not available.
-  };
-
-  struct MenuSeparatorExtraParams {
-    bool has_gutter;
-  };
-
-  struct ProgressBarExtraParams {
-    double animated_seconds;
-    bool determinate;
-    int value_rect_x;
-    int value_rect_y;
-    int value_rect_width;
-    int value_rect_height;
-  };
-
-  struct ScrollbarArrowExtraParams {
-    bool is_hovering;
-  };
-
-  struct ScrollbarTrackExtraParams {
-    bool is_upper;
-    int track_x;
-    int track_y;
-    int track_width;
-    int track_height;
-    int classic_state;  // Used on Windows when uxtheme is not available.
-  };
-
-  struct ScrollbarThumbExtraParams {
-    bool is_hovering;
-  };
-
-  struct SliderExtraParams {
-    bool vertical;
-    bool in_drag;
-  };
-
-  struct TextFieldExtraParams {
-    bool is_text_area;
-    bool is_listbox;
-    SkColor background_color;
-    bool is_read_only;
-    bool is_focused;
-    bool fill_content_area;
-    bool draw_edges;
-    int classic_state;  // Used on Windows when uxtheme is not available.
-  };
-
-  struct TrackbarExtraParams {
-    bool vertical;
-    int classic_state;  // Used on Windows when uxtheme is not available.
-  };
-
-  union ExtraParams {
-    ButtonExtraParams button;
-    InnerSpinButtonExtraParams inner_spin;
-    MenuArrowExtraParams menu_arrow;
-    MenuCheckExtraParams menu_check;
-    MenuItemExtraParams menu_item;
-    MenuListExtraParams menu_list;
-    MenuSeparatorExtraParams menu_separator;
-    ProgressBarExtraParams progress_bar;
-    ScrollbarArrowExtraParams scrollbar_arrow;
-    ScrollbarTrackExtraParams scrollbar_track;
-    ScrollbarThumbExtraParams scrollbar_thumb;
-    SliderExtraParams slider;
-    TextFieldExtraParams text_field;
-    TrackbarExtraParams trackbar;
-  };
-
-  // Return the size of the part.
-  virtual Size GetPartSize(Part part,
-                           State state,
-                           const ExtraParams& extra) const = 0;
-
-  // Paint the part to the canvas.
-  virtual void Paint(SkCanvas* canvas,
-                     Part part,
-                     State state,
-                     const gfx::Rect& rect,
-                     const ExtraParams& extra) const = 0;
-
-  // Supports theme specific colors.
-  void SetScrollbarColors(unsigned inactive_color,
-                          unsigned active_color,
-                          unsigned track_color) const;
-
-  // Colors for GetSystemColor().
-  enum ColorId {
-    // Dialogs
-    kColorId_DialogBackground,
-    // FocusableBorder
-    kColorId_FocusedBorderColor,
-    kColorId_UnfocusedBorderColor,
-    // TextButton
-    kColorId_TextButtonBackgroundColor,
-    kColorId_TextButtonEnabledColor,
-    kColorId_TextButtonDisabledColor,
-    kColorId_TextButtonHighlightColor,
-    kColorId_TextButtonHoverColor,
-    // MenuItem
-    kColorId_EnabledMenuItemForegroundColor,
-    kColorId_DisabledMenuItemForegroundColor,
-    kColorId_FocusedMenuItemBackgroundColor,
-    kColorId_MenuSeparatorColor,
-    // Label
-    kColorId_LabelEnabledColor,
-    kColorId_LabelDisabledColor,
-    kColorId_LabelBackgroundColor,
-    // Textfield
-    kColorId_TextfieldDefaultColor,
-    kColorId_TextfieldDefaultBackground,
-    kColorId_TextfieldSelectionColor,
-    kColorId_TextfieldSelectionBackgroundFocused,
-    kColorId_TextfieldSelectionBackgroundUnfocused,
-    // TODO(benrg): move other hardcoded colors here.
-  };
-
-  // Return a color from the system theme.
-  virtual SkColor GetSystemColor(ColorId color_id) const = 0;
-
-  // Returns a shared instance of the native theme.
-  // The returned object should not be deleted by the caller.  This function
-  // is not thread safe and should only be called from the UI thread.
-  // Each port of NativeTheme should provide its own implementation of this
-  // function, returning the port's subclass.
-  static const NativeTheme* instance();
-
- protected:
-  NativeTheme() {}
-  virtual ~NativeTheme() {}
-
-  static unsigned int thumb_inactive_color_;
-  static unsigned int thumb_active_color_;
-  static unsigned int track_color_;
-
-  DISALLOW_COPY_AND_ASSIGN(NativeTheme);
-};
-
-}  // namespace gfx
-
-#endif  // UI_GFX_NATIVE_THEME_H_