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// Copyright (c) 2009 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/gtk/gtk_theme_provider.h"
#include <gtk/gtk.h>
#include "base/gfx/gtk_util.h"
#include "chrome/browser/metrics/user_metrics.h"
#include "chrome/browser/profile.h"
#include "chrome/common/pref_names.h"
#include "grit/theme_resources.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkColor.h"
namespace {
// The size of the rendered toolbar image.
const int kToolbarImageWidth = 64;
const int kToolbarImageHeight = 128;
} // namespace
GtkThemeProvider::GtkThemeProvider()
: BrowserThemeProvider(),
fake_window_(gtk_window_new(GTK_WINDOW_TOPLEVEL)) {
// Only realized widgets receive style-set notifications, which we need to
// broadcast new theme images and colors.
gtk_widget_realize(fake_window_);
g_signal_connect(fake_window_, "style-set", G_CALLBACK(&OnStyleSet), this);
}
GtkThemeProvider::~GtkThemeProvider() {
gtk_widget_destroy(fake_window_);
}
void GtkThemeProvider::SetTheme(Extension* extension) {
profile()->GetPrefs()->SetBoolean(prefs::kUsesSystemTheme, false);
BrowserThemeProvider::SetTheme(extension);
}
void GtkThemeProvider::UseDefaultTheme() {
profile()->GetPrefs()->SetBoolean(prefs::kUsesSystemTheme, false);
BrowserThemeProvider::UseDefaultTheme();
}
void GtkThemeProvider::SetNativeTheme() {
profile()->GetPrefs()->SetBoolean(prefs::kUsesSystemTheme, true);
ClearAllThemeData();
LoadGtkValues();
NotifyThemeChanged();
}
// static
bool GtkThemeProvider::UseSystemThemeGraphics(Profile* profile) {
return profile->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme);
}
void GtkThemeProvider::LoadThemePrefs() {
if (profile()->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme)) {
LoadGtkValues();
} else {
BrowserThemeProvider::LoadThemePrefs();
}
}
SkBitmap* GtkThemeProvider::LoadThemeBitmap(int id) {
if (id == IDR_THEME_TOOLBAR && UseSystemThemeGraphics(profile())) {
GtkStyle* style = gtk_rc_get_style(fake_window_);
GdkColor* color = &style->bg[GTK_STATE_NORMAL];
SkBitmap* bitmap = new SkBitmap;
bitmap->setConfig(SkBitmap::kARGB_8888_Config,
kToolbarImageWidth, kToolbarImageHeight);
bitmap->allocPixels();
bitmap->eraseRGB(color->red >> 8, color->green >> 8, color->blue >> 8);
return bitmap;
} else {
return BrowserThemeProvider::LoadThemeBitmap(id);
}
}
// static
void GtkThemeProvider::OnStyleSet(GtkWidget* widget,
GtkStyle* previous_style,
GtkThemeProvider* provider) {
if (provider->profile()->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme)) {
provider->ClearAllThemeData();
provider->LoadGtkValues();
provider->NotifyThemeChanged();
}
}
void GtkThemeProvider::LoadGtkValues() {
GtkStyle* style = gtk_rc_get_style(fake_window_);
SetThemeColorFromGtk(themes::kColorFrame, &style->bg[GTK_STATE_SELECTED]);
// Skip COLOR_FRAME_INACTIVE and the incognito colors, as they will be
// autogenerated from tints.
SetThemeColorFromGtk(themes::kColorToolbar,
&style->bg[GTK_STATE_NORMAL]);
SetThemeColorFromGtk(themes::kColorTabText,
&style->text[GTK_STATE_NORMAL]);
SetThemeColorFromGtk(themes::kColorBackgroundTabText,
&style->text[GTK_STATE_NORMAL]);
SetThemeColorFromGtk(themes::kColorBookmarkText,
&style->text[GTK_STATE_NORMAL]);
SetThemeColorFromGtk(themes::kColorControlBackground,
&style->bg[GTK_STATE_NORMAL]);
SetThemeColorFromGtk(themes::kColorButtonBackground,
&style->bg[GTK_STATE_NORMAL]);
SetThemeTintFromGtk(themes::kTintButtons, &style->bg[GTK_STATE_SELECTED],
themes::kDefaultTintButtons);
SetThemeTintFromGtk(themes::kTintFrame, &style->bg[GTK_STATE_SELECTED],
themes::kDefaultTintFrame);
SetThemeTintFromGtk(themes::kTintFrameInactive,
&style->bg[GTK_STATE_SELECTED],
themes::kDefaultTintFrameInactive);
SetThemeTintFromGtk(themes::kTintFrameIncognito,
&style->bg[GTK_STATE_SELECTED],
themes::kDefaultTintFrameIncognito);
SetThemeTintFromGtk(themes::kTintFrameIncognitoInactive,
&style->bg[GTK_STATE_SELECTED],
themes::kDefaultTintFrameIncognitoInactive);
SetThemeTintFromGtk(themes::kTintBackgroundTab,
&style->bg[GTK_STATE_SELECTED],
themes::kDefaultTintBackgroundTab);
GenerateFrameColors();
GenerateFrameImages();
}
void GtkThemeProvider::SetThemeColorFromGtk(const char* id, GdkColor* color) {
SetColor(id, SkColorSetRGB(color->red >> 8,
color->green >> 8,
color->blue >> 8));
}
void GtkThemeProvider::SetThemeTintFromGtk(const char* id, GdkColor* color,
const skia::HSL& default_tint) {
skia::HSL hsl;
skia::SkColorToHSL(SkColorSetRGB((color->red >> 8),
(color->green >> 8),
(color->blue >> 8)), hsl);
if (default_tint.s != -1)
hsl.s = default_tint.s;
if (default_tint.l != -1)
hsl.l = default_tint.l;
SetTint(id, hsl);
}
GtkThemeProperties::GtkThemeProperties(Profile* profile)
: use_gtk_rendering(GtkThemeProvider::UseSystemThemeGraphics(profile)),
provider(profile->GetThemeProvider()) {
}
GdkColor GtkThemeProperties::GetGdkColor(int id) {
SkColor color = provider->GetColor(id);
GdkColor gdkcolor =
GDK_COLOR_RGB(SkColorGetR(color), SkColorGetG(color),
SkColorGetB(color));
return gdkcolor;
}
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