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// Copyright (c) 2010 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/infobars/extension_infobar.h"
#include "app/resource_bundle.h"
#include "app/slide_animation.h"
#include "chrome/browser/extensions/extension_context_menu_model.h"
#include "chrome/browser/extensions/extension_infobar_delegate.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/views/frame/browser_view.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/platform_util.h"
#include "gfx/canvas.h"
#include "grit/browser_resources.h"
#include "grit/theme_resources.h"
#include "views/controls/button/menu_button.h"
#include "views/controls/menu/menu_2.h"
#include "views/widget/widget.h"
// The horizontal margin between the menu and the Extension (HTML) view.
static const int kMenuHorizontalMargin = 1;
// The amount of space to the right of the Extension (HTML) view (to avoid
// overlapping the close button for the InfoBar).
static const int kFarRightMargin = 30;
// The margin between the extension icon and the drop-down arrow bitmap.
static const int kDropArrowLeftMargin = 3;
ExtensionInfoBar::ExtensionInfoBar(ExtensionInfoBarDelegate* delegate)
: InfoBar(delegate),
delegate_(delegate) {
ExtensionHost* extension_host = delegate_->extension_host();
// We set the target height for the InfoBar to be the height of the
// ExtensionView it contains (plus 1 because the view should not overlap the
// separator line at the bottom). When the InfoBar is first created, however,
// this value is 0 but becomes positive after the InfoBar has been shown. See
// function: OnExtensionPreferredSizeChanged.
gfx::Size sz = extension_host->view()->GetPreferredSize();
if (sz.height() > 0)
sz.set_height(sz.height() + 1);
set_target_height(sz.height());
// Setup the extension icon and its associated drop down menu.
SetupIconAndMenu();
// Get notified of resize events for the ExtensionView.
extension_host->view()->SetContainer(this);
// We show the ExtensionView, but we don't want it deleted when we get
// destroyed, which happens on tab switching (for example).
extension_host->view()->set_parent_owned(false);
AddChildView(extension_host->view());
}
ExtensionInfoBar::~ExtensionInfoBar() {
}
void ExtensionInfoBar::OnExtensionPreferredSizeChanged(ExtensionView* view) {
DCHECK(view == delegate_->extension_host()->view());
delegate_->extension_host()->view()->SetVisible(true);
gfx::Size sz = view->GetPreferredSize();
// Clamp height to a min and a max size of between 1 and 2 InfoBars.
int default_height = static_cast<int>(InfoBar::kDefaultTargetHeight);
sz.set_height(std::max(default_height, sz.height()));
sz.set_height(std::min(2 * default_height, sz.height()));
if (height() == 0)
animation()->Reset(0.0);
set_target_height(sz.height());
animation()->Show();
}
void ExtensionInfoBar::Layout() {
// Layout the close button and the background.
InfoBar::Layout();
// Layout the extension icon + drop down menu.
int x = 0;
gfx::Size sz = menu_->GetPreferredSize();
menu_->SetBounds(x,
(height() - sz.height()) / 2,
sz.width(), sz.height());
x += sz.width() + kMenuHorizontalMargin;
// Layout the ExtensionView, showing the HTML InfoBar.
ExtensionView* view = delegate_->extension_host()->view();
view->SetBounds(x, 0, width() - x - kFarRightMargin - 1, height() - 1);
}
void ExtensionInfoBar::RunMenu(View* source, const gfx::Point& pt) {
if (!options_menu_contents_.get()) {
Browser* browser = BrowserView::GetBrowserViewForNativeWindow(
platform_util::GetTopLevel(source->GetWidget()->GetNativeView()))->
browser();
options_menu_contents_.reset(new ExtensionContextMenuModel(
delegate_->extension_host()->extension(), browser, NULL));
}
options_menu_menu_.reset(new views::Menu2(options_menu_contents_.get()));
options_menu_menu_->RunMenuAt(pt, views::Menu2::ALIGN_TOPLEFT);
}
void ExtensionInfoBar::SetupIconAndMenu() {
SkBitmap icon;
// TODO(finnur): http://crbug.com/38521. Use cached version of the Extension
// icon instead of loading it here.
ExtensionResource icon_resource;
Extension::Icons size = delegate_->extension_host()->extension()->
GetIconPathAllowLargerSize(&icon_resource,
Extension::EXTENSION_ICON_BITTY);
if (!icon_resource.GetFilePath().empty()) {
scoped_ptr<SkBitmap> bitmap;
Extension::DecodeIconFromPath(icon_resource.GetFilePath(), size, &bitmap);
if (bitmap.get())
icon = *bitmap.release();
}
// Failure to get the path or failure to decode it causes fall-back to the
// default extension icon.
if (icon.empty()) {
icon = *ResourceBundle::GetSharedInstance().GetBitmapNamed(
IDR_EXTENSION_DEFAULT_ICON);
}
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
SkBitmap* drop_image = rb.GetBitmapNamed(IDR_APP_DROPARROW);
menu_ = new views::MenuButton(NULL, std::wstring(), this, false);
int image_size = Extension::EXTENSION_ICON_BITTY;
scoped_ptr<gfx::Canvas> canvas(
new gfx::Canvas(image_size + kDropArrowLeftMargin + drop_image->width(),
image_size, false));
canvas->DrawBitmapInt(icon,
0, 0, icon.width(), icon.height(),
0, 0, image_size, image_size,
false);
canvas->DrawBitmapInt(*drop_image,
image_size + kDropArrowLeftMargin,
image_size / 2);
menu_->SetIcon(canvas->ExtractBitmap());
AddChildView(menu_);
}
InfoBar* ExtensionInfoBarDelegate::CreateInfoBar() {
return new ExtensionInfoBar(this);
}
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