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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/extension_shelf_gtk.h"
#include "base/gfx/gtk_util.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/gtk/browser_window_gtk.h"
#include "chrome/browser/gtk/gtk_theme_provider.h"
#include "chrome/browser/gtk/view_id_util.h"
#include "chrome/browser/profile.h"
#include "chrome/common/notification_service.h"
#include "grit/app_resources.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
// Preferred height of the ExtensionShelfGtk.
static const int kShelfHeight = 29;
static const int kToolstripPadding = 2;
class ExtensionShelfGtk::Toolstrip {
public:
explicit Toolstrip(ExtensionHost* host)
: host_(host),
extension_name_(host_->extension()->name()) {
DCHECK(host_->view());
Init();
}
void AddToolstripToBox(GtkWidget* box);
void RemoveToolstripFromBox(GtkWidget* box);
void SetBackground(const SkBitmap& background) {
host_->view()->SetBackground(background);
}
private:
void Init();
gfx::NativeView native_view() {
return host_->view()->native_view();
}
ExtensionHost* host_;
const std::string extension_name_;
private:
DISALLOW_COPY_AND_ASSIGN(Toolstrip);
};
void ExtensionShelfGtk::Toolstrip::AddToolstripToBox(GtkWidget* box) {
gtk_box_pack_start(GTK_BOX(box), native_view(), FALSE, FALSE,
kToolstripPadding);
}
void ExtensionShelfGtk::Toolstrip::RemoveToolstripFromBox(GtkWidget* box) {
gtk_container_remove(GTK_CONTAINER(box), native_view());
}
void ExtensionShelfGtk::Toolstrip::Init() {
host_->view()->set_is_toolstrip(true);
gtk_widget_show_all(native_view());
}
ExtensionShelfGtk::ExtensionShelfGtk(Profile* profile, Browser* browser)
: browser_(browser),
theme_provider_(GtkThemeProvider::GetFrom(profile)),
model_(browser->extension_shelf_model()) {
Init(profile);
}
ExtensionShelfGtk::~ExtensionShelfGtk() {
if (model_)
model_->RemoveObserver(this);
event_box_.Destroy();
}
void ExtensionShelfGtk::Show() {
gtk_widget_show_all(event_box_.get());
}
void ExtensionShelfGtk::Hide() {
gtk_widget_hide(event_box_.get());
}
void ExtensionShelfGtk::ToolstripInsertedAt(ExtensionHost* host,
int index) {
InitBackground();
Toolstrip* toolstrip = new Toolstrip(host);
toolstrip->SetBackground(*background_.get());
toolstrip->AddToolstripToBox(shelf_hbox_);
toolstrips_.insert(toolstrip);
model_->SetToolstripDataAt(index, toolstrip);
AdjustHeight();
}
void ExtensionShelfGtk::ToolstripRemovingAt(ExtensionHost* host,
int index) {
Toolstrip* toolstrip = ToolstripAtIndex(index);
toolstrip->RemoveToolstripFromBox(shelf_hbox_);
toolstrips_.erase(toolstrip);
model_->SetToolstripDataAt(index, NULL);
delete toolstrip;
AdjustHeight();
}
void ExtensionShelfGtk::ToolstripMoved(ExtensionHost* host,
int from_index,
int to_index) {
// TODO(phajdan.jr): Implement reordering toolstrips.
AdjustHeight();
}
void ExtensionShelfGtk::ToolstripChanged(
ExtensionShelfModel::iterator toolstrip) {
// TODO(phajdan.jr): Implement changing toolstrips.
AdjustHeight();
}
void ExtensionShelfGtk::ExtensionShelfEmpty() {
AdjustHeight();
}
void ExtensionShelfGtk::ShelfModelReloaded() {
for (std::set<Toolstrip*>::iterator iter = toolstrips_.begin();
iter != toolstrips_.end(); ++iter) {
(*iter)->RemoveToolstripFromBox(shelf_hbox_);
delete *iter;
}
toolstrips_.clear();
LoadFromModel();
}
void ExtensionShelfGtk::ShelfModelDeleting() {
for (std::set<Toolstrip*>::iterator iter = toolstrips_.begin();
iter != toolstrips_.end(); ++iter) {
(*iter)->RemoveToolstripFromBox(shelf_hbox_);
delete *iter;
}
toolstrips_.clear();
model_->RemoveObserver(this);
model_ = NULL;
}
void ExtensionShelfGtk::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(type == NotificationType::BROWSER_THEME_CHANGED);
GdkColor color = theme_provider_->GetBorderColor();
gtk_widget_modify_bg(top_border_, GTK_STATE_NORMAL, &color);
color = theme_provider_->GetGdkColor(BrowserThemeProvider::COLOR_TOOLBAR);
gtk_widget_modify_bg(event_box_.get(), GTK_STATE_NORMAL, &color);
// Reset the background images on all the individual toolstrips
background_.reset();
InitBackground();
for (std::set<Toolstrip*>::iterator it = toolstrips_.begin();
it != toolstrips_.end(); ++it) {
(*it)->SetBackground(*background_.get());
}
}
void ExtensionShelfGtk::Init(Profile* profile) {
top_border_ = gtk_event_box_new();
gtk_widget_set_size_request(GTK_WIDGET(top_border_), 0, 1);
// The event box provides a background for the shelf and is its top-level
// widget.
event_box_.Own(gtk_event_box_new());
ViewIDUtil::SetID(event_box_.get(), VIEW_ID_DEV_EXTENSION_SHELF);
shelf_hbox_ = gtk_hbox_new(FALSE, 0);
GtkWidget* vbox = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox), top_border_, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox), shelf_hbox_, FALSE, FALSE, 0);
gtk_container_add(GTK_CONTAINER(event_box_.get()), vbox);
theme_provider_->InitThemesFor(this);
registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED,
NotificationService::AllSources());
LoadFromModel();
model_->AddObserver(this);
}
void ExtensionShelfGtk::InitBackground() {
if (background_.get())
return;
GdkColor color =
theme_provider_->GetGdkColor(BrowserThemeProvider::COLOR_TOOLBAR);
background_.reset(new SkBitmap);
background_->setConfig(SkBitmap::kARGB_8888_Config, 3, 3);
background_->allocPixels();
background_->eraseRGB(color.red >> 8,
color.green >> 8,
color.blue >> 8);
}
void ExtensionShelfGtk::AdjustHeight() {
if (model_->empty() || toolstrips_.empty()) {
// It's possible that |model_| is not empty, but |toolstrips_| are empty
// when removing the last toolstrip.
DCHECK(toolstrips_.empty());
Hide();
} else {
gtk_widget_set_size_request(shelf_hbox_, -1, kShelfHeight);
Show();
}
}
void ExtensionShelfGtk::LoadFromModel() {
DCHECK(toolstrips_.empty());
int count = model_->count();
for (int i = 0; i < count; ++i)
ToolstripInsertedAt(model_->ToolstripAt(i).host, i);
AdjustHeight();
}
ExtensionShelfGtk::Toolstrip* ExtensionShelfGtk::ToolstripAtIndex(int index) {
return static_cast<Toolstrip*>(model_->ToolstripAt(index).data);
}
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