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// 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 "chrome/browser/ui/omnibox/location_bar_util.h"
#include "base/i18n/rtl.h"
#include "base/strings/string_util.h"
#include "chrome/browser/extensions/extension_action.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/effects/SkGradientShader.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/color_utils.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/text_elider.h"
namespace location_bar_util {
base::string16 CalculateMinString(const base::string16& description) {
// Chop at the first '.' or whitespace.
const size_t dot_index = description.find('.');
const size_t ws_index = description.find_first_of(base::kWhitespaceUTF16);
size_t chop_index = std::min(dot_index, ws_index);
base::string16 min_string;
if (chop_index == base::string16::npos) {
// No dot or whitespace, truncate to at most 3 chars.
min_string = gfx::TruncateString(description, 3);
} else {
min_string = description.substr(0, chop_index);
}
base::i18n::AdjustStringForLocaleDirection(&min_string);
return min_string;
}
void PaintExtensionActionBackground(const ExtensionAction& action,
int tab_id,
gfx::Canvas* canvas,
const gfx::Rect& bounds,
SkColor text_color,
SkColor background_color) {
if (!action.WantsAttention(tab_id))
return;
SkPoint gradient_bounds[2] = { {SkIntToScalar(bounds.x()),
SkIntToScalar(bounds.y())},
{SkIntToScalar(bounds.x()),
SkIntToScalar(bounds.bottom())} };
SkColor gradient_colors[2] = {
color_utils::AlphaBlend(text_color, background_color, 0x13),
color_utils::AlphaBlend(text_color, background_color, 0x1d)
};
skia::RefPtr<SkShader> gradient = skia::AdoptRef(
SkGradientShader::CreateLinear(gradient_bounds, gradient_colors,
NULL, 2, SkShader::kClamp_TileMode));
SkPaint paint;
paint.setShader(gradient.get());
canvas->DrawRect(bounds, paint);
SkColor border_color =
color_utils::AlphaBlend(text_color, background_color, 0x55);
canvas->DrawLine(bounds.origin(),
gfx::Point(bounds.x(), bounds.bottom()),
border_color);
// "-1" because gfx::Rects are half-open, not including their right or
// bottom edges.
canvas->DrawLine(gfx::Point(bounds.right() - 1, bounds.y()),
gfx::Point(bounds.right() - 1, bounds.bottom()),
border_color);
}
} // namespace location_bar_util
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