Implement the Web Theme Engine for Android

webkit/glue/webthemeengine_impl_android.cc

Index: webkit/glue/webthemeengine_impl_android.cc
diff --git a/webkit/glue/webthemeengine_impl_android.cc b/webkit/glue/webthemeengine_impl_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2101eebad2b312d84b6188f0bc0fba6f52bba40e
--- /dev/null
+++ b/webkit/glue/webthemeengine_impl_android.cc
@@ -0,0 +1,183 @@
+// Copyright (c) 2011 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.
+
+#include "webkit/glue/webthemeengine_impl_android.h"
+
+#include "base/logging.h"
+#include "skia/ext/platform_canvas.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebRect.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSize.h"
+#include "ui/gfx/native_theme_android.h"
+
+using WebKit::WebCanvas;
+using WebKit::WebColor;
+using WebKit::WebRect;
+using WebKit::WebThemeEngine;
+
+namespace webkit_glue {
+
+static gfx::NativeThemeAndroid::Part NativeThemePart(
+    WebThemeEngine::Part part) {
+  switch (part) {
+    case WebThemeEngine::PartScrollbarDownArrow:
+      return gfx::NativeThemeAndroid::SCROLLBAR_DOWN_ARROW;
+    case WebThemeEngine::PartScrollbarLeftArrow:
+      return gfx::NativeThemeAndroid::SCROLLBAR_LEFT_ARROW;
+    case WebThemeEngine::PartScrollbarRightArrow:
+      return gfx::NativeThemeAndroid::SCROLLBAR_RIGHT_ARROW;
+    case WebThemeEngine::PartScrollbarUpArrow:
+      return gfx::NativeThemeAndroid::SCROLLBAR_UP_ARROW;
+    case WebThemeEngine::PartScrollbarHorizontalThumb:
+      // Android doesn't draw scrollbars.
+      NOTREACHED();
+      return static_cast<gfx::NativeThemeAndroid::Part>(0);
+    case WebThemeEngine::PartScrollbarVerticalThumb:
+      // Android doesn't draw scrollbars.
+      NOTREACHED();
+      return static_cast<gfx::NativeThemeAndroid::Part>(0);
+    case WebThemeEngine::PartScrollbarHorizontalTrack:
+      // Android doesn't draw scrollbars.
+      NOTREACHED();
+      return static_cast<gfx::NativeThemeAndroid::Part>(0);
+    case WebThemeEngine::PartScrollbarVerticalTrack:
+      // Android doesn't draw scrollbars.
+      NOTREACHED();
+      return static_cast<gfx::NativeThemeAndroid::Part>(0);
+    case WebThemeEngine::PartCheckbox:
+      return gfx::NativeThemeAndroid::CHECKBOX;
+    case WebThemeEngine::PartRadio:
+      return gfx::NativeThemeAndroid::RADIO;
+    case WebThemeEngine::PartButton:
+      return gfx::NativeThemeAndroid::PUSH_BUTTON;
+    case WebThemeEngine::PartTextField:
+      return gfx::NativeThemeAndroid::TEXTFIELD;
+    case WebThemeEngine::PartMenuList:
+      return gfx::NativeThemeAndroid::MENU_LIST;
+    case WebThemeEngine::PartSliderTrack:
+      return gfx::NativeThemeAndroid::SLIDER_TRACK;
+    case WebThemeEngine::PartSliderThumb:
+      return gfx::NativeThemeAndroid::SLIDER_THUMB;
+    case WebThemeEngine::PartInnerSpinButton:
+      return gfx::NativeThemeAndroid::INNER_SPIN_BUTTON;
+    case WebThemeEngine::PartProgressBar:
+      return gfx::NativeThemeAndroid::PROGRESS_BAR;
+    default:
+      return gfx::NativeThemeAndroid::SCROLLBAR_DOWN_ARROW;
+  }
+}
+
+static gfx::NativeThemeAndroid::State NativeThemeState(
+    WebThemeEngine::State state) {
+  switch (state) {
+    case WebThemeEngine::StateDisabled:
+      return gfx::NativeThemeAndroid::DISABLED;
+    case WebThemeEngine::StateHover:
+      return gfx::NativeThemeAndroid::HOVERED;
+    case WebThemeEngine::StateNormal:
+      return gfx::NativeThemeAndroid::NORMAL;
+    case WebThemeEngine::StatePressed:
+      return gfx::NativeThemeAndroid::PRESSED;
+    default:
+      return gfx::NativeThemeAndroid::DISABLED;
+  }
+}
+
+static void GetNativeThemeExtraParams(
+    WebThemeEngine::Part part,
+    WebThemeEngine::State state,
+    const WebThemeEngine::ExtraParams* extra_params,
+    gfx::NativeThemeAndroid::ExtraParams* native_theme_extra_params) {
+  switch (part) {
+    case WebThemeEngine::PartScrollbarHorizontalTrack:
+    case WebThemeEngine::PartScrollbarVerticalTrack:
+      // Android doesn't draw scrollbars.
+      NOTREACHED();
+      break;
+    case WebThemeEngine::PartCheckbox:
+      native_theme_extra_params->button.checked = extra_params->button.checked;
+      native_theme_extra_params->button.indeterminate =
+          extra_params->button.indeterminate;
+      break;
+    case WebThemeEngine::PartRadio:
+      native_theme_extra_params->button.checked = extra_params->button.checked;
+      break;
+    case WebThemeEngine::PartButton:
+      native_theme_extra_params->button.is_default =
+          extra_params->button.isDefault;
+      native_theme_extra_params->button.has_border =
+          extra_params->button.hasBorder;
+      native_theme_extra_params->button.background_color =
+          extra_params->button.backgroundColor;
+      break;
+    case WebThemeEngine::PartTextField:
+      native_theme_extra_params->text_field.is_text_area =
+          extra_params->textField.isTextArea;
+      native_theme_extra_params->text_field.is_listbox =
+          extra_params->textField.isListbox;
+      native_theme_extra_params->text_field.background_color =
+          extra_params->textField.backgroundColor;
+      break;
+    case WebThemeEngine::PartMenuList:
+      native_theme_extra_params->menu_list.has_border =
+          extra_params->menuList.hasBorder;
+      native_theme_extra_params->menu_list.has_border_radius =
+          extra_params->menuList.hasBorderRadius;
+      native_theme_extra_params->menu_list.arrow_x =
+          extra_params->menuList.arrowX;
+      native_theme_extra_params->menu_list.arrow_y =
+          extra_params->menuList.arrowY;
+      native_theme_extra_params->menu_list.background_color =
+          extra_params->menuList.backgroundColor;
+      break;
+    case WebThemeEngine::PartSliderTrack:
+    case WebThemeEngine::PartSliderThumb:
+      native_theme_extra_params->slider.vertical =
+          extra_params->slider.vertical;
+      native_theme_extra_params->slider.in_drag = extra_params->slider.inDrag;
+      break;
+    case WebThemeEngine::PartInnerSpinButton:
+      native_theme_extra_params->inner_spin.spin_up =
+          extra_params->innerSpin.spinUp;
+      native_theme_extra_params->inner_spin.read_only =
+          extra_params->innerSpin.readOnly;
+      break;
+    case WebThemeEngine::PartProgressBar:
+      native_theme_extra_params->progress_bar.determinate =
+          extra_params->progressBar.determinate;
+      native_theme_extra_params->progress_bar.value_rect_x =
+          extra_params->progressBar.valueRectX;
+      native_theme_extra_params->progress_bar.value_rect_y =
+          extra_params->progressBar.valueRectY;
+      native_theme_extra_params->progress_bar.value_rect_width =
+          extra_params->progressBar.valueRectWidth;
+      native_theme_extra_params->progress_bar.value_rect_height =
+          extra_params->progressBar.valueRectHeight;
+      break;
+    default:
+      break;  // Parts that have no extra params get here.
+  }
+}
+
+WebKit::WebSize WebThemeEngineImpl::getSize(WebThemeEngine::Part part) {
+  return gfx::NativeThemeAndroid::instance()->GetPartSize(
+      NativeThemePart(part));
+}
+
+void WebThemeEngineImpl::paint(
+    WebKit::WebCanvas* canvas,
+    WebThemeEngine::Part part,
+    WebThemeEngine::State state,
+    const WebKit::WebRect& rect,
+    const WebThemeEngine::ExtraParams* extra_params) {
+  gfx::NativeThemeAndroid::ExtraParams native_theme_extra_params;
+  GetNativeThemeExtraParams(
+      part, state, extra_params, &native_theme_extra_params);
+  gfx::NativeThemeAndroid::instance()->Paint(
+      canvas,
+      NativeThemePart(part),
+      NativeThemeState(state),
+      gfx::Rect(rect),
+      native_theme_extra_params);
+}
+}  // namespace webkit_glue