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// Copyright 2015 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/md_text_button.h"
#include "base/i18n/case_conversion.h"
#include "ui/gfx/render_text.h"
#include "ui/native_theme/native_theme.h"
namespace views {
namespace {
// Inset between clickable region border and button contents (text).
const int kHorizontalPadding = 12;
const int kVerticalPadding = 6;
// Minimum size to reserve for the button contents.
const int kMinWidth = 48;
const gfx::FontList& GetFontList() {
static base::LazyInstance<gfx::FontList>::Leaky font_list =
LAZY_INSTANCE_INITIALIZER;
return font_list.Get();
}
} // namespace
MdTextButton::MdTextButton(ButtonListener* listener, const base::string16& text)
: CustomButton(listener),
render_text_(gfx::RenderText::CreateInstance()) {
render_text_->SetFontList(GetFontList());
render_text_->SetCursorEnabled(false);
render_text_->SetText(base::i18n::ToUpper(text));
SetFocusable(true);
}
MdTextButton::~MdTextButton() {}
void MdTextButton::OnPaint(gfx::Canvas* canvas) {
UpdateColor();
gfx::Rect rect = GetLocalBounds();
rect.Inset(kHorizontalPadding, kVerticalPadding);
render_text_->SetDisplayRect(rect);
render_text_->Draw(canvas);
}
gfx::Size MdTextButton::GetPreferredSize() const {
gfx::Size size = render_text_->GetStringSize();
size.SetToMax(gfx::Size(kMinWidth, 0));
size.Enlarge(kHorizontalPadding * 2, kVerticalPadding * 2);
return size;
}
void MdTextButton::UpdateColor() {
// TODO(estade): handle call to action theming and other things that can
// affect the text color.
render_text_->SetColor(GetNativeTheme()->GetSystemColor(
enabled() ? ui::NativeTheme::kColorId_MdTextButtonEnabledColor
: ui::NativeTheme::kColorId_MdTextButtonDisabledColor));
}
} // namespace views
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