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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/browser_toolbar_view_gtk.h"
#include "base/logging.h"
#include "base/base_paths_linux.h"
#include "base/path_service.h"
#include "chrome/app/chrome_dll_resource.h"
#include "chrome/browser/browser.h"
#include "chrome/common/l10n_util.h"
#include "chromium_strings.h"
#include "generated_resources.h"
// CustomDrawButton manages the lifetimes of some resources used to make a
// custom-drawn Gtk button. We use them on the toolbar.
class BrowserToolbarGtk::CustomDrawButton {
public:
// The constructor takes a filename, which is used as the base filename
// in loading the theme graphics pngs. This will be replaced by the
// ResourceBundle graphics soon.
CustomDrawButton(const std::string& filename);
~CustomDrawButton();
GtkWidget* widget() const { return widget_; }
private:
// Load an image from a path.
// TODO(port): Temporary until ResourceBundle works.
GdkPixbuf* LoadImage(const std::string& filename);
// Load all the button images from a base theme filename.
// TODO(port): Temporary until ResourceBundle works.
void LoadImages(const std::string& filename);
// Callback for expose, used to draw the custom graphics.
static gboolean OnExpose(GtkWidget* widget, GdkEventExpose* e,
CustomDrawButton* obj);
// The actual button widget.
GtkWidget* widget_;
// We store one GdkPixbuf* for each possible state of the button;
// INSENSITIVE is the last available state;
GdkPixbuf* pixbufs_[GTK_STATE_INSENSITIVE + 1];
};
BrowserToolbarGtk::CustomDrawButton::CustomDrawButton(
const std::string& filename) {
widget_ = gtk_button_new();
LoadImages(filename);
gtk_widget_set_app_paintable(widget_, TRUE);
g_signal_connect(G_OBJECT(widget_), "expose-event",
G_CALLBACK(OnExpose), this);
}
BrowserToolbarGtk::CustomDrawButton::~CustomDrawButton() {
for (size_t i = 0; i < arraysize(pixbufs_); ++i) {
if (pixbufs_[i])
gdk_pixbuf_unref(pixbufs_[i]);
}
}
GdkPixbuf* BrowserToolbarGtk::CustomDrawButton::LoadImage(
const std::string& filename) {
// We intentionally ignore errors here, as some buttons don't have images
// for all states. This will all be removed once ResourceBundle works.
return gdk_pixbuf_new_from_file(filename.c_str(), NULL);
}
void BrowserToolbarGtk::CustomDrawButton::LoadImages(
const std::string& filename) {
// TODO(evanm): make this use ResourceBundle once that is ported.
FilePath path;
bool ok = PathService::Get(base::DIR_SOURCE_ROOT, &path);
DCHECK(ok);
path = path.Append("chrome/app/theme").Append(filename);
pixbufs_[GTK_STATE_NORMAL] = LoadImage(path.value() + ".png");
pixbufs_[GTK_STATE_ACTIVE] = LoadImage(path.value() + "_p.png");
pixbufs_[GTK_STATE_PRELIGHT] = LoadImage(path.value() + "_h.png");
pixbufs_[GTK_STATE_SELECTED] = NULL;
pixbufs_[GTK_STATE_INSENSITIVE] = LoadImage(path.value() + "_d.png");
gtk_widget_set_size_request(widget_,
gdk_pixbuf_get_width(pixbufs_[0]),
gdk_pixbuf_get_height(pixbufs_[0]));
}
// static
gboolean BrowserToolbarGtk::CustomDrawButton::OnExpose(
GtkWidget* widget,
GdkEventExpose* e,
CustomDrawButton* button) {
GdkPixbuf* pixbuf = button->pixbufs_[GTK_WIDGET_STATE(widget)];
// Fall back to the default image if we don't have one for this state.
if (!pixbuf)
pixbuf = button->pixbufs_[GTK_STATE_NORMAL];
if (!pixbuf)
return FALSE;
gdk_draw_pixbuf(widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
pixbuf,
0, 0,
widget->allocation.x, widget->allocation.y, -1, -1,
GDK_RGB_DITHER_NONE, 0, 0);
return TRUE;
}
BrowserToolbarGtk::BrowserToolbarGtk(Browser* browser)
: toolbar_(NULL),
model_(browser->toolbar_model()),
browser_(browser),
profile_(NULL) {
browser_->command_updater()->AddCommandObserver(IDC_BACK, this);
browser_->command_updater()->AddCommandObserver(IDC_FORWARD, this);
browser_->command_updater()->AddCommandObserver(IDC_RELOAD, this);
browser_->command_updater()->AddCommandObserver(IDC_HOME, this);
browser_->command_updater()->AddCommandObserver(IDC_STAR, this);
// TODO(port): Port BackForwardMenuModel
// back_menu_model_.reset(new BackForwardMenuModel(
// browser, BackForwardMenuModel::BACKWARD_MENU_DELEGATE));
// forward_menu_model_.reset(new BackForwardMenuModel(
// browser, BackForwardMenuModel::FORWARD_MENU_DELEGATE));
}
BrowserToolbarGtk::~BrowserToolbarGtk() {
}
void BrowserToolbarGtk::Init(Profile* profile) {
toolbar_ = gtk_hbox_new(FALSE, 0);
gtk_container_set_border_width(GTK_CONTAINER(toolbar_), 6);
toolbar_tooltips_ = gtk_tooltips_new();
back_.reset(BuildToolbarButton("back",
l10n_util::GetString(IDS_TOOLTIP_BACK)));
forward_.reset(BuildToolbarButton("forward",
l10n_util::GetString(IDS_TOOLTIP_FORWARD)));
gtk_box_pack_start(GTK_BOX(toolbar_), gtk_label_new(" "), FALSE, FALSE, 0);
reload_.reset(BuildToolbarButton("reload",
l10n_util::GetString(IDS_TOOLTIP_RELOAD)));
home_.reset(BuildToolbarButton("home",
l10n_util::GetString(IDS_TOOLTIP_HOME)));
gtk_box_pack_start(GTK_BOX(toolbar_), gtk_label_new(" "), FALSE, FALSE, 0);
star_.reset(BuildToolbarButton("star",
l10n_util::GetString(IDS_TOOLTIP_STAR)));
GtkWidget* entry = gtk_entry_new();
gtk_widget_set_size_request(entry, 0, 27);
gtk_box_pack_start(GTK_BOX(toolbar_), entry, TRUE, TRUE, 0);
go_.reset(BuildToolbarButton("go", L""));
// TODO(port): these buttons need even stranger drawing than the others.
page_menu_.reset(BuildToolbarButton("menu_page",
l10n_util::GetString(IDS_PAGEMENU_TOOLTIP)));
// TODO(port): Need to get l10n_util::GetStringF working under linux to get
// the correct string here.
app_menu_.reset(BuildToolbarButton("menu_chrome",
l10n_util::GetString(IDS_APPMENU_TOOLTIP)));
// TODO(erg): wchar_t mismatch on linux. Fix later.
// show_home_button_.Init(prefs::kShowHomeButton, profile->GetPrefs(), this);
SetProfile(profile);
}
void BrowserToolbarGtk::AddToolbarToBox(GtkWidget* box) {
gtk_box_pack_start(GTK_BOX(box), toolbar_, FALSE, FALSE, 0);
}
void BrowserToolbarGtk::EnabledStateChangedForCommand(int id, bool enabled) {
GtkWidget* widget = NULL;
switch (id) {
case IDC_BACK:
widget = back_->widget();
break;
case IDC_FORWARD:
widget = forward_->widget();
break;
case IDC_RELOAD:
widget = reload_->widget();
break;
case IDC_HOME:
widget = home_->widget();
break;
case IDC_STAR:
widget = star_->widget();
break;
}
if (widget)
gtk_widget_set_sensitive(widget, enabled);
}
void BrowserToolbarGtk::SetProfile(Profile* profile) {
if (profile == profile_)
return;
profile_ = profile;
// TODO(erg): location_bar_ is a normal gtk text box right now. Change this
// when we get omnibox support.
// location_bar_->SetProfile(profile);
}
// TODO(port): This needs to deal with our styled pixmaps.
BrowserToolbarGtk::CustomDrawButton* BrowserToolbarGtk::BuildToolbarButton(
const std::string& filename,
const std::wstring& localized_tooltip) {
CustomDrawButton* button = new CustomDrawButton(filename);
// TODO(erg): Mismatch between wstring and string.
// gtk_tooltips_set_tip(GTK_TOOLTIPS(toolbar_tooltips_),
// GTK_WIDGET(back_),
// localized_tooltip, localized_tooltip);
g_signal_connect(G_OBJECT(button->widget()), "clicked",
G_CALLBACK(ButtonClickCallback), this);
gtk_box_pack_start(GTK_BOX(toolbar_), button->widget(), FALSE, FALSE, 0);
return button;
}
/* static */
void BrowserToolbarGtk::ButtonClickCallback(GtkWidget* button,
BrowserToolbarGtk* toolbar) {
int tag = -1;
if (button == toolbar->back_->widget())
tag = IDC_BACK;
else if (button == toolbar->forward_->widget())
tag = IDC_FORWARD;
else if (button == toolbar->reload_->widget())
tag = IDC_RELOAD;
else if (button == toolbar->home_->widget())
tag = IDC_HOME;
else if (button == toolbar->star_->widget())
tag = IDC_STAR;
if (tag != -1) {
toolbar->browser_->ExecuteCommand(tag);
} else {
// TODO(erg): The menu buttons are special; they need to spawn menus.
}
}
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