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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/views/panel_controller.h"
#include <gdk/gdkx.h>
extern "C" {
#include <X11/Xlib.h>
}
#include "app/resource_bundle.h"
#include "base/logging.h"
#include "base/singleton.h"
#include "base/scoped_ptr.h"
#include "base/string_util.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/gtk/browser_window_gtk.h"
#include "chrome/browser/views/tabs/tab_overview_types.h"
#include "chrome/common/x11_util.h"
#include "grit/app_resources.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "views/controls/button/image_button.h"
#include "views/controls/label.h"
#include "views/event.h"
#include "views/view.h"
#include "views/widget/widget_gtk.h"
static int close_button_width;
static int close_button_height;
static SkBitmap* close_button_n;
static SkBitmap* close_button_h;
static SkBitmap* close_button_p;
static gfx::Font* title_font = NULL;
namespace {
const int kTitleWidth = 200;
const int kTitleHeight = 24;
const int kTitlePad = 8;
const int kButtonPad = 8;
static bool resources_initialized;
static void InitializeResources() {
if (resources_initialized) {
return;
}
resources_initialized = true;
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
title_font = new gfx::Font(rb.GetFont(ResourceBundle::BaseFont));
close_button_n = rb.GetBitmapNamed(IDR_TAB_CLOSE);
close_button_h = rb.GetBitmapNamed(IDR_TAB_CLOSE_H);
close_button_p = rb.GetBitmapNamed(IDR_TAB_CLOSE_P);
close_button_width = close_button_n->width();
close_button_height = close_button_n->height();
}
} // namespace
PanelController::PanelController(BrowserWindowGtk* browser_window)
: browser_window_(browser_window),
panel_(browser_window->window()),
panel_xid_(x11_util::GetX11WindowFromGtkWidget(GTK_WIDGET(panel_))),
expanded_(true),
mouse_down_(false),
dragging_(false) {
title_window_ = new views::WidgetGtk(views::WidgetGtk::TYPE_WINDOW);
gfx::Rect title_bounds(
0, 0, browser_window->GetNormalBounds().width(), kTitleHeight);
title_window_->Init(NULL, title_bounds);
title_ = title_window_->GetNativeView();
title_xid_ = x11_util::GetX11WindowFromGtkWidget(title_);
TabOverviewTypes* tab_overview = TabOverviewTypes::instance();
tab_overview->SetWindowType(
title_,
TabOverviewTypes::WINDOW_TYPE_CHROME_PANEL_TITLEBAR,
NULL);
std::vector<int> type_params;
type_params.push_back(title_xid_);
type_params.push_back(expanded_ ? 1 : 0);
tab_overview->SetWindowType(
GTK_WIDGET(panel_),
TabOverviewTypes::WINDOW_TYPE_CHROME_PANEL,
&type_params);
g_signal_connect(
panel_, "client-event", G_CALLBACK(OnPanelClientEvent), this);
title_content_ = new TitleContentView(this);
title_window_->SetContentsView(title_content_);
title_window_->Show();
}
void PanelController::UpdateTitleBar() {
title_content_->title_label()->SetText(
UTF16ToWideHack(browser_window_->browser()->GetCurrentPageTitle()));
}
bool PanelController::TitleMousePressed(const views::MouseEvent& event) {
if (!event.IsOnlyLeftMouseButton()) {
return false;
}
gfx::Point abs_location = event.location();
views::View::ConvertPointToScreen(title_content_, &abs_location);
mouse_down_ = true;
mouse_down_abs_x_ = abs_location.x();
mouse_down_abs_y_ = abs_location.y();
mouse_down_offset_x_ = event.x();
mouse_down_offset_y_ = event.y();
dragging_ = false;
return true;
}
void PanelController::TitleMouseReleased(
const views::MouseEvent& event, bool canceled) {
if (!event.IsOnlyLeftMouseButton()) {
return;
}
// Only handle clicks that started in our window.
if (!mouse_down_) {
return;
}
mouse_down_ = false;
if (!dragging_) {
TabOverviewTypes::Message msg(
TabOverviewTypes::Message::WM_SET_PANEL_STATE);
msg.set_param(0, panel_xid_);
msg.set_param(1, expanded_ ? 0 : 1);
TabOverviewTypes::instance()->SendMessage(msg);
} else {
TabOverviewTypes::Message msg(
TabOverviewTypes::Message::WM_NOTIFY_PANEL_DRAG_COMPLETE);
msg.set_param(0, panel_xid_);
TabOverviewTypes::instance()->SendMessage(msg);
dragging_ = false;
}
}
bool PanelController::TitleMouseDragged(const views::MouseEvent& event) {
if (!mouse_down_) {
return false;
}
gfx::Point abs_location = event.location();
views::View::ConvertPointToScreen(title_content_, &abs_location);
if (!dragging_) {
if (views::View::ExceededDragThreshold(
abs_location.x() - mouse_down_abs_x_,
abs_location.y() - mouse_down_abs_y_)) {
dragging_ = true;
}
}
if (dragging_) {
TabOverviewTypes::Message msg(TabOverviewTypes::Message::WM_MOVE_PANEL);
msg.set_param(0, panel_xid_);
msg.set_param(1, abs_location.x() - mouse_down_offset_x_);
msg.set_param(2, abs_location.y() - mouse_down_offset_y_);
TabOverviewTypes::instance()->SendMessage(msg);
}
return true;
}
// static
bool PanelController::OnPanelClientEvent(
GtkWidget* widget,
GdkEventClient* event,
PanelController* panel_controller) {
return panel_controller->PanelClientEvent(event);
}
bool PanelController::PanelClientEvent(GdkEventClient* event) {
TabOverviewTypes::Message msg;
TabOverviewTypes::instance()->DecodeMessage(*event, &msg);
if (msg.type() == TabOverviewTypes::Message::CHROME_NOTIFY_PANEL_STATE) {
expanded_ = msg.param(0);
}
return true;
}
void PanelController::Close() {
title_window_->Close();
}
void PanelController::ButtonPressed(views::Button* sender) {
if (sender == title_content_->close_button()) {
browser_window_->Close();
}
}
PanelController::TitleContentView::TitleContentView(
PanelController* panel_controller)
: panel_controller_(panel_controller) {
InitializeResources();
close_button_ = new views::ImageButton(panel_controller_);
close_button_->SetImage(views::CustomButton::BS_NORMAL, close_button_n);
close_button_->SetImage(views::CustomButton::BS_HOT, close_button_h);
close_button_->SetImage(views::CustomButton::BS_PUSHED, close_button_p);
AddChildView(close_button_);
title_label_ = new views::Label(std::wstring(), *title_font);
title_label_->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
AddChildView(title_label_);
set_background(views::Background::CreateSolidBackground(0xdd, 0xdd, 0xdd, 1));
}
void PanelController::TitleContentView::Layout() {
close_button_->SetBounds(
bounds().width() - (close_button_width + kButtonPad),
(bounds().height() - close_button_height) / 2,
close_button_width,
close_button_height);
title_label_->SetBounds(
kTitlePad,
0,
bounds().width() - (kTitlePad + close_button_width + 2 * kButtonPad),
bounds().height());
}
bool PanelController::TitleContentView::OnMousePressed(
const views::MouseEvent& event) {
return panel_controller_->TitleMousePressed(event);
}
void PanelController::TitleContentView::OnMouseReleased(
const views::MouseEvent& event, bool canceled) {
return panel_controller_->TitleMouseReleased(event, canceled);
}
bool PanelController::TitleContentView::OnMouseDragged(
const views::MouseEvent& event) {
return panel_controller_->TitleMouseDragged(event);
}
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