Add support for blue buttons.

ui/views/controls/button/label_button.cc

 // 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.
 
 #include "ui/views/controls/button/label_button.h"
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "ui/base/animation/throb_animation.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/focus_border.h"
 #include "ui/views/window/dialog_delegate.h"
 
 #if defined(OS_WIN)
 #include "ui/gfx/color_utils.h"
 #include "ui/native_theme/native_theme_win.h"
 #endif
 
 namespace {
 
 // The spacing between the icon and text.
 const int kSpacing = 5;
 
 // The length of the hover fade animation.
 const int kHoverAnimationDurationMs = 170;
 
+// Blue button style default font color.
+const SkColor kBlueButtonTextColor = SK_ColorWHITE;
+
+// Blue button style shadow color.
+const SkColor kBlueButtonShadowColor = SkColorSetRGB(0x53, 0x8C, 0xEA);
+
 }  // namespace
 
 namespace views {
 
 // static
 const char LabelButton::kViewClassName[] = "views/LabelButton";
 
 LabelButton::LabelButton(ButtonListener* listener, const string16& text)
     : CustomButton(listener),
       image_(new ImageView()),
@@ skipping 105 matching lines @@
   if (style == STYLE_BUTTON || style == STYLE_NATIVE_TEXTBUTTON) {
     label_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
     set_focusable(true);
   }
   if (style == STYLE_BUTTON) {
     set_min_size(gfx::Size(70, 31));
     const SkColor color = GetNativeTheme()->GetSystemColor(
       ui::NativeTheme::kColorId_WindowBackground);
     label_->SetShadowColors(color, color);
     label_->SetShadowOffset(0, 1);
+  } else if (style == STYLE_BLUE_BUTTON) {
+    label_->SetShadowColors(kBlueButtonShadowColor, kBlueButtonShadowColor);
+    label_->SetShadowOffset(0, 1);
   }
   // Invalidate the layout to pickup the new insets from the border.
   InvalidateLayout();
   ResetColorsFromNativeTheme();
 }
 
 gfx::Size LabelButton::GetPreferredSize() {
   // Accommodate bold text in case this STYLE_BUTTON button is made default.
   const gfx::Font font = label_->font();
   if (style_ == STYLE_BUTTON)
@@ skipping 42 matching lines @@
     theme->GetSystemColor(ui::NativeTheme::kColorId_TextButtonHoverColor),
     theme->GetSystemColor(ui::NativeTheme::kColorId_TextButtonDisabledColor),
   };
 
   // Certain styles do not change text color when hovered or pressed.
   bool constant_text_color = style() == STYLE_BUTTON;
 #if defined(OS_WIN)
   constant_text_color |= (style() == STYLE_NATIVE_TEXTBUTTON &&
                           theme == ui::NativeThemeWin::instance());
 #endif
+  if (style() == STYLE_BLUE_BUTTON) {
+    colors[STATE_NORMAL] = kBlueButtonTextColor;
+    colors[STATE_DISABLED] = kBlueButtonTextColor;
+    constant_text_color = true;
+  }
+
   if (constant_text_color)
     colors[STATE_HOVERED] = colors[STATE_PRESSED] = colors[STATE_NORMAL];
 
   for (size_t state = STATE_NORMAL; state < STATE_COUNT; ++state) {
     if (!explicitly_set_colors_[state]) {
       SetTextColor(static_cast<ButtonState>(state), colors[state]);
       explicitly_set_colors_[state] = false;
     }
   }
 }
 
 void LabelButton::StateChanged() {
   const gfx::Size previous_image_size(image_->GetPreferredSize());
   image_->SetImage(GetImage(state()));
-  const SkColor color = button_state_colors_[state()];

[msw, 2013/05/18 20:07:24]

nit: restore this const

[benwells, 2013/05/24 07:44:22]

Done.

+  SkColor color = button_state_colors_[state()];
   if (state() != STATE_DISABLED && label_->enabled_color() != color)
     label_->SetEnabledColor(color);
   label_->SetEnabled(state() != STATE_DISABLED);
   if (image_->GetPreferredSize() != previous_image_size)
     Layout();
 }
 
 void LabelButton::Layout() {
   gfx::Rect child_area(GetLocalBounds());
   child_area.Inset(GetInsets());
@@ skipping 93 matching lines @@
   params->button.indeterminate = false;
   params->button.is_default = is_default_;
   params->button.is_focused = HasFocus() && IsAccessibilityFocusable();
   params->button.has_border = style() == STYLE_NATIVE_TEXTBUTTON;
   params->button.classic_state = 0;
   params->button.background_color = GetNativeTheme()->GetSystemColor(
       ui::NativeTheme::kColorId_TextButtonBackgroundColor);
 }
 
 }  // namespace views