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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "webkit/child/webfallbackthemeengine_impl.h"
      6 
      7 #include "skia/ext/platform_canvas.h"
      8 #include "third_party/WebKit/public/platform/WebRect.h"
      9 #include "third_party/WebKit/public/platform/WebSize.h"
     10 #include "ui/native_theme/fallback_theme.h"
     11 
     12 using blink::WebCanvas;
     13 using blink::WebColor;
     14 using blink::WebRect;
     15 using blink::WebFallbackThemeEngine;
     16 
     17 namespace webkit_glue {
     18 
     19 static ui::NativeTheme::Part NativeThemePart(
     20     WebFallbackThemeEngine::Part part) {
     21   switch (part) {
     22     case WebFallbackThemeEngine::PartScrollbarDownArrow:
     23       return ui::NativeTheme::kScrollbarDownArrow;
     24     case WebFallbackThemeEngine::PartScrollbarLeftArrow:
     25       return ui::NativeTheme::kScrollbarLeftArrow;
     26     case WebFallbackThemeEngine::PartScrollbarRightArrow:
     27       return ui::NativeTheme::kScrollbarRightArrow;
     28     case WebFallbackThemeEngine::PartScrollbarUpArrow:
     29       return ui::NativeTheme::kScrollbarUpArrow;
     30     case WebFallbackThemeEngine::PartScrollbarHorizontalThumb:
     31       return ui::NativeTheme::kScrollbarHorizontalThumb;
     32     case WebFallbackThemeEngine::PartScrollbarVerticalThumb:
     33       return ui::NativeTheme::kScrollbarVerticalThumb;
     34     case WebFallbackThemeEngine::PartScrollbarHorizontalTrack:
     35       return ui::NativeTheme::kScrollbarHorizontalTrack;
     36     case WebFallbackThemeEngine::PartScrollbarVerticalTrack:
     37       return ui::NativeTheme::kScrollbarVerticalTrack;
     38     case WebFallbackThemeEngine::PartCheckbox:
     39       return ui::NativeTheme::kCheckbox;
     40     case WebFallbackThemeEngine::PartRadio:
     41       return ui::NativeTheme::kRadio;
     42     case WebFallbackThemeEngine::PartButton:
     43       return ui::NativeTheme::kPushButton;
     44     case WebFallbackThemeEngine::PartTextField:
     45       return ui::NativeTheme::kTextField;
     46     case WebFallbackThemeEngine::PartMenuList:
     47       return ui::NativeTheme::kMenuList;
     48     case WebFallbackThemeEngine::PartSliderTrack:
     49       return ui::NativeTheme::kSliderTrack;
     50     case WebFallbackThemeEngine::PartSliderThumb:
     51       return ui::NativeTheme::kSliderThumb;
     52     case WebFallbackThemeEngine::PartInnerSpinButton:
     53       return ui::NativeTheme::kInnerSpinButton;
     54     case WebFallbackThemeEngine::PartProgressBar:
     55       return ui::NativeTheme::kProgressBar;
     56     default:
     57       return ui::NativeTheme::kScrollbarDownArrow;
     58   }
     59 }
     60 
     61 static ui::NativeTheme::State NativeThemeState(
     62     WebFallbackThemeEngine::State state) {
     63   switch (state) {
     64     case WebFallbackThemeEngine::StateDisabled:
     65       return ui::NativeTheme::kDisabled;
     66     case WebFallbackThemeEngine::StateHover:
     67       return ui::NativeTheme::kHovered;
     68     case WebFallbackThemeEngine::StateNormal:
     69       return ui::NativeTheme::kNormal;
     70     case WebFallbackThemeEngine::StatePressed:
     71       return ui::NativeTheme::kPressed;
     72     default:
     73       return ui::NativeTheme::kDisabled;
     74   }
     75 }
     76 
     77 static void GetNativeThemeExtraParams(
     78     WebFallbackThemeEngine::Part part,
     79     WebFallbackThemeEngine::State state,
     80     const WebFallbackThemeEngine::ExtraParams* extra_params,
     81     ui::NativeTheme::ExtraParams* native_theme_extra_params) {
     82   switch (part) {
     83     case WebFallbackThemeEngine::PartScrollbarHorizontalTrack:
     84     case WebFallbackThemeEngine::PartScrollbarVerticalTrack:
     85       native_theme_extra_params->scrollbar_track.track_x =
     86           extra_params->scrollbarTrack.trackX;
     87       native_theme_extra_params->scrollbar_track.track_y =
     88           extra_params->scrollbarTrack.trackY;
     89       native_theme_extra_params->scrollbar_track.track_width =
     90           extra_params->scrollbarTrack.trackWidth;
     91       native_theme_extra_params->scrollbar_track.track_height =
     92           extra_params->scrollbarTrack.trackHeight;
     93       break;
     94     case WebFallbackThemeEngine::PartCheckbox:
     95       native_theme_extra_params->button.checked = extra_params->button.checked;
     96       native_theme_extra_params->button.indeterminate =
     97           extra_params->button.indeterminate;
     98       break;
     99     case WebFallbackThemeEngine::PartRadio:
    100       native_theme_extra_params->button.checked = extra_params->button.checked;
    101       break;
    102     case WebFallbackThemeEngine::PartButton:
    103       native_theme_extra_params->button.is_default =
    104           extra_params->button.isDefault;
    105       native_theme_extra_params->button.has_border =
    106           extra_params->button.hasBorder;
    107       // Native buttons have a different focus style.
    108       native_theme_extra_params->button.is_focused = false;
    109       native_theme_extra_params->button.background_color =
    110           extra_params->button.backgroundColor;
    111       break;
    112     case WebFallbackThemeEngine::PartTextField:
    113       native_theme_extra_params->text_field.is_text_area =
    114           extra_params->textField.isTextArea;
    115       native_theme_extra_params->text_field.is_listbox =
    116           extra_params->textField.isListbox;
    117       native_theme_extra_params->text_field.background_color =
    118           extra_params->textField.backgroundColor;
    119       break;
    120     case WebFallbackThemeEngine::PartMenuList:
    121       native_theme_extra_params->menu_list.has_border =
    122           extra_params->menuList.hasBorder;
    123       native_theme_extra_params->menu_list.has_border_radius =
    124           extra_params->menuList.hasBorderRadius;
    125       native_theme_extra_params->menu_list.arrow_x =
    126           extra_params->menuList.arrowX;
    127       native_theme_extra_params->menu_list.arrow_y =
    128           extra_params->menuList.arrowY;
    129       native_theme_extra_params->menu_list.background_color =
    130           extra_params->menuList.backgroundColor;
    131       break;
    132     case WebFallbackThemeEngine::PartSliderTrack:
    133     case WebFallbackThemeEngine::PartSliderThumb:
    134       native_theme_extra_params->slider.vertical =
    135           extra_params->slider.vertical;
    136       native_theme_extra_params->slider.in_drag = extra_params->slider.inDrag;
    137       break;
    138     case WebFallbackThemeEngine::PartInnerSpinButton:
    139       native_theme_extra_params->inner_spin.spin_up =
    140           extra_params->innerSpin.spinUp;
    141       native_theme_extra_params->inner_spin.read_only =
    142           extra_params->innerSpin.readOnly;
    143       break;
    144     case WebFallbackThemeEngine::PartProgressBar:
    145       native_theme_extra_params->progress_bar.determinate =
    146           extra_params->progressBar.determinate;
    147       native_theme_extra_params->progress_bar.value_rect_x =
    148           extra_params->progressBar.valueRectX;
    149       native_theme_extra_params->progress_bar.value_rect_y =
    150           extra_params->progressBar.valueRectY;
    151       native_theme_extra_params->progress_bar.value_rect_width =
    152           extra_params->progressBar.valueRectWidth;
    153       native_theme_extra_params->progress_bar.value_rect_height =
    154           extra_params->progressBar.valueRectHeight;
    155       break;
    156     default:
    157       break;  // Parts that have no extra params get here.
    158   }
    159 }
    160 
    161 WebFallbackThemeEngineImpl::WebFallbackThemeEngineImpl()
    162     : theme_(new ui::FallbackTheme()) {
    163 }
    164 
    165 WebFallbackThemeEngineImpl::~WebFallbackThemeEngineImpl() {}
    166 
    167 blink::WebSize WebFallbackThemeEngineImpl::getSize(
    168     WebFallbackThemeEngine::Part part) {
    169   ui::NativeTheme::ExtraParams extra;
    170   return theme_->GetPartSize(NativeThemePart(part),
    171                              ui::NativeTheme::kNormal,
    172                              extra);
    173 }
    174 
    175 void WebFallbackThemeEngineImpl::paint(
    176     blink::WebCanvas* canvas,
    177     WebFallbackThemeEngine::Part part,
    178     WebFallbackThemeEngine::State state,
    179     const blink::WebRect& rect,
    180     const WebFallbackThemeEngine::ExtraParams* extra_params) {
    181   ui::NativeTheme::ExtraParams native_theme_extra_params;
    182   GetNativeThemeExtraParams(
    183       part, state, extra_params, &native_theme_extra_params);
    184   theme_->Paint(canvas,
    185                 NativeThemePart(part),
    186                 NativeThemeState(state),
    187                 gfx::Rect(rect),
    188                 native_theme_extra_params);
    189 }
    190 
    191 }  // namespace webkit_glue
    192