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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/chromeos/compact_navigation_bar.h"
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "app/theme_provider.h"
#include "base/logging.h"
#include "chrome/app/chrome_dll_resource.h"
#include "chrome/browser/back_forward_menu_model.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/browser_theme_provider.h"
#include "chrome/browser/browser_window.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/view_ids.h"
#include "chrome/browser/views/event_utils.h"
#include "chrome/browser/views/frame/browser_view.h"
#include "chrome/browser/views/theme_background.h"
#include "gfx/canvas.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "views/controls/button/button_dropdown.h"
#include "views/controls/button/image_button.h"
#include "views/controls/image_view.h"
#include "views/controls/native/native_view_host.h"
namespace chromeos {
// Padding inside each button around the image.
static const int kInnerPadding = 1;
// Spacing between buttons (excluding left/right most margin)
static const int kHorizMargin = 3;
// Left side margin of the back button to align with the main menu.
static const int kBackButtonLeftMargin = 10;
// Right side margin of the forward button to align with the main menu.
static const int kForwardButtonRightMargin = 1;
// Preferred height.
static const int kPreferredHeight = 25;
////////////////////////////////////////////////////////////////////////////////
// CompactNavigationBar public:
CompactNavigationBar::CompactNavigationBar(::BrowserView* browser_view)
: browser_view_(browser_view),
initialized_(false) {
}
CompactNavigationBar::~CompactNavigationBar() {
}
void CompactNavigationBar::Init() {
DCHECK(!initialized_);
initialized_ = true;
Browser* browser = browser_view_->browser();
browser->command_updater()->AddCommandObserver(IDC_BACK, this);
browser->command_updater()->AddCommandObserver(IDC_FORWARD, this);
back_menu_model_.reset(new BackForwardMenuModel(
browser, BackForwardMenuModel::BACKWARD_MENU));
forward_menu_model_.reset(new BackForwardMenuModel(
browser, BackForwardMenuModel::FORWARD_MENU));
ResourceBundle& resource_bundle = ResourceBundle::GetSharedInstance();
back_ = new views::ButtonDropDown(this, back_menu_model_.get());
back_->set_triggerable_event_flags(views::Event::EF_LEFT_BUTTON_DOWN |
views::Event::EF_MIDDLE_BUTTON_DOWN);
back_->set_tag(IDC_BACK);
back_->SetTooltipText(l10n_util::GetString(IDS_TOOLTIP_BACK));
back_->SetAccessibleName(l10n_util::GetString(IDS_ACCNAME_BACK));
back_->SetImage(views::CustomButton::BS_NORMAL,
resource_bundle.GetBitmapNamed(IDR_COMPACTNAV_BACK));
back_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
views::ImageButton::ALIGN_MIDDLE);
AddChildView(back_);
bf_separator_ = new views::ImageView;
bf_separator_->SetImage(
resource_bundle.GetBitmapNamed(IDR_COMPACTNAV_SEPARATOR));
AddChildView(bf_separator_);
forward_ = new views::ButtonDropDown(this, forward_menu_model_.get());
forward_->set_triggerable_event_flags(views::Event::EF_LEFT_BUTTON_DOWN |
views::Event::EF_MIDDLE_BUTTON_DOWN);
forward_->set_tag(IDC_FORWARD);
forward_->SetTooltipText(l10n_util::GetString(IDS_TOOLTIP_FORWARD));
forward_->SetAccessibleName(l10n_util::GetString(IDS_ACCNAME_FORWARD));
forward_->SetImage(views::CustomButton::BS_NORMAL,
resource_bundle.GetBitmapNamed(IDR_COMPACTNAV_FORWARD));
forward_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
views::ImageButton::ALIGN_MIDDLE);
AddChildView(forward_);
set_background(new ThemeBackground(browser_view_));
}
gfx::Size CompactNavigationBar::GetPreferredSize() {
int width = kBackButtonLeftMargin;
width += back_->GetPreferredSize().width() + kInnerPadding * 2;
width += kHorizMargin;
width += bf_separator_->GetPreferredSize().width();
width += kHorizMargin;
width += forward_->GetPreferredSize().width() + kInnerPadding * 2;
width += kForwardButtonRightMargin;
return gfx::Size(width, kPreferredHeight);
}
void CompactNavigationBar::Layout() {
if (!initialized_)
return;
// Layout forward/back buttons after entry views as follows:
// [Back]|[Forward]
int curx = kBackButtonLeftMargin;
// "Back | Forward" section.
gfx::Size button_size = back_->GetPreferredSize();
button_size.set_width(button_size.width() + kInnerPadding * 2);
back_->SetBounds(curx, 0, button_size.width(), height());
curx += button_size.width() + kHorizMargin;
button_size = bf_separator_->GetPreferredSize();
bf_separator_->SetBounds(curx, 0, button_size.width(), height());
curx += button_size.width() + kHorizMargin;
button_size = forward_->GetPreferredSize();
button_size.set_width(button_size.width() + kInnerPadding * 2);
forward_->SetBounds(curx, 0, button_size.width(), height());
}
void CompactNavigationBar::Paint(gfx::Canvas* canvas) {
PaintBackground(canvas);
}
////////////////////////////////////////////////////////////////////////////////
// views::ButtonListener implementation.
void CompactNavigationBar::ButtonPressed(
views::Button* sender, const views::Event& event) {
browser_view_->browser()->ExecuteCommandWithDisposition(
sender->tag(),
event_utils::DispositionFromEventFlags(sender->mouse_event_flags()));
}
////////////////////////////////////////////////////////////////////////////////
// CommandUpdater::CommandObserver implementation.
void CompactNavigationBar::EnabledStateChangedForCommand(int id, bool enabled) {
switch (id) {
case IDC_BACK:
back_->SetEnabled(enabled);
break;
case IDC_FORWARD:
forward_->SetEnabled(enabled);
break;
}
}
} // namespace chromeos
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