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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/views/chrome_typography_provider.h"
#include "build/build_config.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/browser/ui/views/chrome_typography.h"
#include "ui/base/default_style.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/theme_provider.h"
#include "ui/color/color_id.h"
#include "ui/gfx/color_palette.h"
#include "ui/gfx/color_utils.h"
#include "ui/gfx/platform_font.h"
#include "ui/views/style/typography.h"
#if BUILDFLAG(IS_WIN)
#include "base/win/windows_version.h"
#include "ui/native_theme/native_theme_win.h"
#endif
#if BUILDFLAG(IS_CHROMEOS)
#include <optional>
// gn check complains on Linux Ozone.
#include "ash/public/cpp/ash_typography.h" // nogncheck
#endif
bool ChromeTypographyProvider::StyleAllowedForContext(int context,
int style) const {
if (context == CONTEXT_TAB_HOVER_CARD_TITLE) {
return style == views::style::STYLE_PRIMARY ||
style == views::style::STYLE_BODY_3_EMPHASIS;
}
if (style == views::style::STYLE_EMPHASIZED ||
style == views::style::STYLE_EMPHASIZED_SECONDARY) {
// Limit emphasizing text to contexts where it's obviously correct. If you
// hit this check, ensure it's sane and UX-approved to extend it to your
// new case (e.g. don't add CONTEXT_BUTTON_MD).
#if BUILDFLAG(IS_CHROMEOS)
// TODO(crbug.com/40234831): Limit more specific Ash contexts.
return true;
#else
return context == views::style::CONTEXT_LABEL ||
context == views::style::CONTEXT_DIALOG_BODY_TEXT ||
context == CONTEXT_DIALOG_BODY_TEXT_SMALL ||
context == CONTEXT_DOWNLOAD_SHELF;
#endif
}
return TypographyProvider::StyleAllowedForContext(context, style);
}
ui::ResourceBundle::FontDetails ChromeTypographyProvider::GetFontDetailsImpl(
int context,
int style) const {
if (style > views::style::STYLE_OVERRIDE_TYPOGRAPHY_START &&
style < views::style::STYLE_OVERRIDE_TYPOGRAPHY_END) {
return TypographyProvider::GetFontDetailsImpl(context, style);
}
// "Target" font size constants.
constexpr int kTitleSize = 15;
constexpr int kTouchableLabelSize = 14;
constexpr int kBodyTextLargeSize = 13;
constexpr int kCR23ButtonTextSize = 13;
constexpr int kDefaultSize = 12;
constexpr int kStatusSize = 10;
constexpr int kBadgeSize = 9;
ui::ResourceBundle::FontDetails details;
details.size_delta = gfx::PlatformFont::GetFontSizeDelta(kDefaultSize);
#if BUILDFLAG(IS_CHROMEOS)
ash::ApplyAshFontStyles(context, style, details);
#endif
ApplyCommonFontStyles(context, style, details);
switch (context) {
case views::style::CONTEXT_BADGE:
details.size_delta = gfx::PlatformFont::GetFontSizeDelta(kBadgeSize);
details.weight = gfx::Font::Weight::BOLD;
break;
case views::style::CONTEXT_BUTTON_MD:
details.weight = MediumWeightForUI();
details.size_delta =
gfx::PlatformFont::GetFontSizeDelta(kCR23ButtonTextSize);
break;
case views::style::CONTEXT_DIALOG_TITLE:
details.size_delta = gfx::PlatformFont::GetFontSizeDelta(kTitleSize);
break;
case views::style::CONTEXT_TOUCH_MENU:
details.size_delta =
gfx::PlatformFont::GetFontSizeDelta(kTouchableLabelSize);
break;
case views::style::CONTEXT_DIALOG_BODY_TEXT:
case CONTEXT_TAB_HOVER_CARD_TITLE:
case CONTEXT_DOWNLOAD_SHELF:
details.size_delta =
gfx::PlatformFont::GetFontSizeDelta(kBodyTextLargeSize);
break;
case CONTEXT_DOWNLOAD_SHELF_STATUS:
details.size_delta = gfx::PlatformFont::GetFontSizeDelta(kStatusSize);
break;
default:
break;
}
if (context == CONTEXT_TAB_HOVER_CARD_TITLE) {
details.weight = gfx::Font::Weight::SEMIBOLD;
}
if (context == CONTEXT_TAB_COUNTER &&
style == views::style::STYLE_SECONDARY) {
// Secondary font is for double-digit counts. Because we have control over
// system fonts on ChromeOS, we can just choose a condensed font. For other
// platforms we adjust size.
#if BUILDFLAG(IS_CHROMEOS)
details.typeface = "Roboto Condensed";
#else
details.size_delta -= 2;
#endif
}
if (style == views::style::STYLE_EMPHASIZED ||
style == views::style::STYLE_EMPHASIZED_SECONDARY) {
details.weight = gfx::Font::Weight::SEMIBOLD;
}
if (style == views::style::STYLE_PRIMARY_MONOSPACED ||
style == views::style::STYLE_SECONDARY_MONOSPACED) {
#if BUILDFLAG(IS_MAC)
details.typeface = "Menlo";
#elif BUILDFLAG(IS_WIN)
details.typeface = "Consolas";
#else
details.typeface = "DejaVu Sans Mono";
#endif
}
if (style == STYLE_SMALL) {
details.size_delta -= 2;
}
return details;
}
ui::ColorId ChromeTypographyProvider::GetColorIdImpl(int context,
int style) const {
#if BUILDFLAG(IS_CHROMEOS)
// TODO(crbug.com/400615941): Remove ash-spcecific handling from //chrome.
if (std::optional<ui::ColorId> color_id = ash::GetColorId(style);
color_id.has_value()) {
return color_id.value();
}
#endif
// Body text styles are the same as for labels.
if (context == views::style::CONTEXT_DIALOG_BODY_TEXT ||
context == CONTEXT_DIALOG_BODY_TEXT_SMALL) {
context = views::style::CONTEXT_LABEL;
}
// Monospaced styles have the same colors as their normal counterparts.
if (style == views::style::STYLE_PRIMARY_MONOSPACED) {
style = views::style::STYLE_PRIMARY;
} else if (style == views::style::STYLE_SECONDARY_MONOSPACED) {
style = views::style::STYLE_SECONDARY;
}
if (context == CONTEXT_DOWNLOAD_SHELF ||
context == CONTEXT_DOWNLOAD_SHELF_STATUS) {
switch (style) {
case STYLE_RED:
return kColorDownloadItemForegroundDangerous;
case STYLE_GREEN:
return kColorDownloadItemForegroundSafe;
case views::style::STYLE_DISABLED:
return kColorDownloadItemForegroundDisabled;
default:
return kColorDownloadItemForeground;
}
}
switch (style) {
case STYLE_RED:
return ui::kColorAlertHighSeverity;
case STYLE_GREEN:
return ui::kColorAlertLowSeverity;
default:
return TypographyProvider::GetColorIdImpl(context, style);
}
}
int ChromeTypographyProvider::GetLineHeightImpl(int context, int style) const {
if (style > views::style::STYLE_OVERRIDE_TYPOGRAPHY_START &&
style < views::style::STYLE_OVERRIDE_TYPOGRAPHY_END) {
return TypographyProvider::GetLineHeightImpl(context, style);
}
#if BUILDFLAG(IS_CHROMEOS)
// TODO(crbug.com/400615941): Remove ash-spcecific handling when we remove
// usage where GetLineHeightImpl receives ash-specific `context`.
std::optional<int> height = ash::GetLineHeight(context);
if (height) {
return height.value();
}
#endif
// "Target" line height constants from the Harmony spec. A default OS
// configuration should use these heights. However, if the user overrides OS
// defaults, then GetLineHeight() should return the height that would add the
// same extra space between lines as the default configuration would have.
constexpr int kTitleHeight = 22;
constexpr int kBodyHeight = 20; // For both large and small.
constexpr int kControlHeight = 16;
// The platform-specific heights (i.e. gfx::Font::GetHeight()) that result when
// asking for the target size constants in ChromeTypographyProvider::GetFont()
// in a default OS configuration.
#if BUILDFLAG(IS_MAC)
constexpr int kTitlePlatformHeight = 19;
constexpr int kBodyTextLargePlatformHeight = 16;
constexpr int kBodyTextSmallPlatformHeight = 15;
#elif BUILDFLAG(IS_WIN)
constexpr int kTitlePlatformHeight = 20;
constexpr int kBodyTextLargePlatformHeight = 18;
constexpr int kBodyTextSmallPlatformHeight = 16;
#else
constexpr int kTitlePlatformHeight = 18;
constexpr int kBodyTextLargePlatformHeight = 17;
constexpr int kBodyTextSmallPlatformHeight = 15;
#endif
// The style of the system font used to determine line heights.
constexpr int kTemplateStyle = views::style::STYLE_PRIMARY;
// TODO(tapted): These statics should be cleared out when something invokes
// ui::ResourceBundle::ReloadFonts(). Currently that only happens on ChromeOS.
// See http://crbug.com/708943.
static const int title_height =
GetFont(views::style::CONTEXT_DIALOG_TITLE, kTemplateStyle).GetHeight() -
kTitlePlatformHeight + kTitleHeight;
static const int body_large_height =
GetFont(views::style::CONTEXT_DIALOG_BODY_TEXT, kTemplateStyle)
.GetHeight() -
kBodyTextLargePlatformHeight + kBodyHeight;
static const int control_height =
GetFont(CONTEXT_DIALOG_BODY_TEXT_SMALL, kTemplateStyle).GetHeight() -
kBodyTextSmallPlatformHeight + kControlHeight;
static const int default_height =
GetFont(CONTEXT_DIALOG_BODY_TEXT_SMALL, kTemplateStyle).GetHeight() -
kBodyTextSmallPlatformHeight + kBodyHeight;
switch (context) {
case views::style::CONTEXT_BUTTON:
case views::style::CONTEXT_BUTTON_MD:
case views::style::CONTEXT_TEXTFIELD:
case CONTEXT_TOOLBAR_BUTTON:
return control_height;
case views::style::CONTEXT_DIALOG_TITLE:
return title_height;
case views::style::CONTEXT_DIALOG_BODY_TEXT:
case views::style::CONTEXT_TABLE_ROW:
case CONTEXT_TAB_HOVER_CARD_TITLE:
case CONTEXT_DOWNLOAD_SHELF:
return body_large_height;
default:
return default_height;
}
}
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