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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/renderer_preferences_util.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/pref_names.h"
#include "content/public/common/renderer_preferences.h"
#if defined(OS_LINUX)
#include "ui/gfx/font_render_params_linux.h"
#endif
#if defined(TOOLKIT_GTK)
#include "chrome/browser/ui/gtk/gtk_theme_service.h"
#include "ui/gfx/gtk_util.h"
#endif
namespace renderer_preferences_util {
namespace {
#if defined(TOOLKIT_GTK)
// Dividing GTK's cursor blink cycle time (in milliseconds) by this value yields
// an appropriate value for content::RendererPreferences::caret_blink_interval.
// This matches the logic in the WebKit GTK port.
const double kGtkCursorBlinkCycleFactor = 2000.0;
#endif // defined(TOOLKIT_GTK)
#if defined(OS_LINUX)
content::RendererPreferencesHintingEnum GetRendererPreferencesHintingEnum(
gfx::FontRenderParams::Hinting hinting) {
switch (hinting) {
case gfx::FontRenderParams::HINTING_NONE:
return content::RENDERER_PREFERENCES_HINTING_NONE;
case gfx::FontRenderParams::HINTING_SLIGHT:
return content::RENDERER_PREFERENCES_HINTING_SLIGHT;
case gfx::FontRenderParams::HINTING_MEDIUM:
return content::RENDERER_PREFERENCES_HINTING_MEDIUM;
case gfx::FontRenderParams::HINTING_FULL:
return content::RENDERER_PREFERENCES_HINTING_FULL;
default:
NOTREACHED() << "Unhandled hinting style " << hinting;
return content::RENDERER_PREFERENCES_HINTING_SYSTEM_DEFAULT;
}
}
content::RendererPreferencesSubpixelRenderingEnum
GetRendererPreferencesSubpixelRenderingEnum(
gfx::FontRenderParams::SubpixelRendering subpixel_rendering) {
switch (subpixel_rendering) {
case gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE:
return content::RENDERER_PREFERENCES_SUBPIXEL_RENDERING_NONE;
case gfx::FontRenderParams::SUBPIXEL_RENDERING_RGB:
return content::RENDERER_PREFERENCES_SUBPIXEL_RENDERING_RGB;
case gfx::FontRenderParams::SUBPIXEL_RENDERING_BGR:
return content::RENDERER_PREFERENCES_SUBPIXEL_RENDERING_BGR;
case gfx::FontRenderParams::SUBPIXEL_RENDERING_VRGB:
return content::RENDERER_PREFERENCES_SUBPIXEL_RENDERING_VRGB;
case gfx::FontRenderParams::SUBPIXEL_RENDERING_VBGR:
return content::RENDERER_PREFERENCES_SUBPIXEL_RENDERING_VBGR;
default:
NOTREACHED() << "Unhandled subpixel rendering style "
<< subpixel_rendering;
return content::RENDERER_PREFERENCES_SUBPIXEL_RENDERING_SYSTEM_DEFAULT;
}
}
#endif // defined(OS_LINUX)
} // namespace
void UpdateFromSystemSettings(
content::RendererPreferences* prefs, Profile* profile) {
const PrefService* pref_service = profile->GetPrefs();
prefs->enable_referrers = pref_service->GetBoolean(prefs::kEnableReferrers);
prefs->default_zoom_level = pref_service->GetDouble(prefs::kDefaultZoomLevel);
#if defined(TOOLKIT_GTK)
GtkThemeService* theme_service = GtkThemeService::GetFrom(profile);
prefs->focus_ring_color = theme_service->get_focus_ring_color();
prefs->thumb_active_color = theme_service->get_thumb_active_color();
prefs->thumb_inactive_color = theme_service->get_thumb_inactive_color();
prefs->track_color = theme_service->get_track_color();
prefs->active_selection_bg_color =
theme_service->get_active_selection_bg_color();
prefs->active_selection_fg_color =
theme_service->get_active_selection_fg_color();
prefs->inactive_selection_bg_color =
theme_service->get_inactive_selection_bg_color();
prefs->inactive_selection_fg_color =
theme_service->get_inactive_selection_fg_color();
const base::TimeDelta cursor_blink_time = gfx::GetCursorBlinkCycle();
prefs->caret_blink_interval =
cursor_blink_time.InMilliseconds() ?
cursor_blink_time.InMilliseconds() / kGtkCursorBlinkCycleFactor :
0;
#elif defined(USE_ASH)
// This color is 0x544d90fe modulated with 0xffffff.
prefs->active_selection_bg_color = SkColorSetRGB(0xCB, 0xE4, 0xFA);
prefs->active_selection_fg_color = SK_ColorBLACK;
prefs->inactive_selection_bg_color = SkColorSetRGB(0xEA, 0xEA, 0xEA);
prefs->inactive_selection_fg_color = SK_ColorBLACK;
#endif
#if defined(OS_LINUX)
const gfx::FontRenderParams& params = gfx::GetDefaultFontRenderParams();
prefs->should_antialias_text = params.antialiasing;
prefs->use_subpixel_positioning = params.subpixel_positioning;
prefs->hinting = GetRendererPreferencesHintingEnum(params.hinting);
prefs->subpixel_rendering =
GetRendererPreferencesSubpixelRenderingEnum(params.subpixel_rendering);
#endif
}
} // renderer_preferences_util
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