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// Copyright (c) 2012 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/ui/views/infobars/extension_infobar.h"
#include "chrome/browser/extensions/extension_context_menu_model.h"
#include "chrome/browser/extensions/extension_infobar_delegate.h"
#include "chrome/browser/extensions/extension_view_host.h"
#include "chrome/browser/extensions/image_loader.h"
#include "chrome/browser/platform_util.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/common/extensions/manifest_handlers/icons_handler.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_icon_set.h"
#include "extensions/common/extension_resource.h"
#include "grit/theme_resources.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/animation/slide_animation.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/image/canvas_image_source.h"
#include "ui/gfx/image/image.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/controls/image_view.h"
#include "ui/views/controls/menu/menu_item_view.h"
#include "ui/views/widget/widget.h"
// ExtensionInfoBarDelegate ----------------------------------------------------
// static
scoped_ptr<InfoBar> ExtensionInfoBarDelegate::CreateInfoBar(
scoped_ptr<ExtensionInfoBarDelegate> delegate) {
Browser* browser = delegate->browser_;
return scoped_ptr<InfoBar>(new ExtensionInfoBar(delegate.Pass(), browser));
}
// ExtensionInfoBar ------------------------------------------------------------
namespace {
// The horizontal margin between the infobar icon and the Extension (HTML) view.
const int kIconHorizontalMargin = 1;
class MenuImageSource: public gfx::CanvasImageSource {
public:
MenuImageSource(const gfx::ImageSkia& icon, const gfx::ImageSkia& drop_image)
: gfx::CanvasImageSource(ComputeSize(drop_image), false),
icon_(icon),
drop_image_(drop_image) {
}
virtual ~MenuImageSource() {
}
// Overridden from gfx::CanvasImageSource
virtual void Draw(gfx::Canvas* canvas) OVERRIDE {
int image_size = extension_misc::EXTENSION_ICON_BITTY;
canvas->DrawImageInt(icon_, 0, 0, icon_.width(), icon_.height(), 0, 0,
image_size, image_size, false);
canvas->DrawImageInt(drop_image_, image_size + kDropArrowLeftMargin,
image_size / 2);
}
private:
gfx::Size ComputeSize(const gfx::ImageSkia& drop_image) const {
int image_size = extension_misc::EXTENSION_ICON_BITTY;
return gfx::Size(image_size + kDropArrowLeftMargin + drop_image.width(),
image_size);
}
// The margin between the extension icon and the drop-down arrow image.
static const int kDropArrowLeftMargin = 3;
const gfx::ImageSkia icon_;
const gfx::ImageSkia drop_image_;
DISALLOW_COPY_AND_ASSIGN(MenuImageSource);
};
} // namespace
ExtensionInfoBar::ExtensionInfoBar(
scoped_ptr<ExtensionInfoBarDelegate> delegate,
Browser* browser)
: InfoBarView(delegate.PassAs<InfoBarDelegate>()),
browser_(browser),
infobar_icon_(NULL),
icon_as_menu_(NULL),
icon_as_image_(NULL),
weak_ptr_factory_(this) {
}
ExtensionInfoBar::~ExtensionInfoBar() {
}
void ExtensionInfoBar::Layout() {
InfoBarView::Layout();
infobar_icon_->SetPosition(gfx::Point(StartX(), OffsetY(infobar_icon_)));
ExtensionViewViews* extension_view =
GetDelegate()->extension_view_host()->view();
// TODO(pkasting): We'd like to simply set the extension view's desired height
// at creation time and position using OffsetY() like for other infobar items,
// but the NativeViewHost inside does not seem to be clipped by the ClipRect()
// call in InfoBarView::PaintChildren(), so we have to manually clamp the size
// here.
extension_view->SetSize(
gfx::Size(std::max(0, EndX() - StartX() - NonExtensionViewWidth()),
std::min(height() - kSeparatorLineHeight - arrow_height(),
GetDelegate()->height())));
// We do SetPosition() separately after SetSize() so OffsetY() will work.
extension_view->SetPosition(
gfx::Point(infobar_icon_->bounds().right() + kIconHorizontalMargin,
std::max(arrow_height(), OffsetY(extension_view))));
}
void ExtensionInfoBar::ViewHierarchyChanged(
const ViewHierarchyChangedDetails& details) {
if (!details.is_add || (details.child != this) || (infobar_icon_ != NULL)) {
InfoBarView::ViewHierarchyChanged(details);
return;
}
extensions::ExtensionViewHost* extension_view_host =
GetDelegate()->extension_view_host();
if (extension_view_host->extension()->ShowConfigureContextMenus()) {
icon_as_menu_ = new views::MenuButton(NULL, base::string16(), this, false);
icon_as_menu_->SetFocusable(true);
infobar_icon_ = icon_as_menu_;
} else {
icon_as_image_ = new views::ImageView();
infobar_icon_ = icon_as_image_;
}
// Wait until the icon image is loaded before showing it.
infobar_icon_->SetVisible(false);
AddChildView(infobar_icon_);
// Set the desired height of the ExtensionViewViews, so that when the
// AddChildView() call triggers InfoBarView::ViewHierarchyChanged(), it can
// read the correct height off this object in order to calculate the overall
// desired infobar height.
extension_view_host->view()->SetSize(gfx::Size(0, GetDelegate()->height()));
AddChildView(extension_view_host->view());
// This must happen after adding all other children so InfoBarView can ensure
// the close button is the last child.
InfoBarView::ViewHierarchyChanged(details);
// This must happen after adding all children because it can trigger layout,
// which assumes that particular children (e.g. the close button) have already
// been added.
const extensions::Extension* extension = extension_view_host->extension();
extension_misc::ExtensionIcons image_size =
extension_misc::EXTENSION_ICON_BITTY;
extensions::ExtensionResource icon_resource =
extensions::IconsInfo::GetIconResource(
extension, image_size, ExtensionIconSet::MATCH_EXACTLY);
extensions::ImageLoader* loader =
extensions::ImageLoader::Get(extension_view_host->browser_context());
loader->LoadImageAsync(
extension,
icon_resource,
gfx::Size(image_size, image_size),
base::Bind(&ExtensionInfoBar::OnImageLoaded,
weak_ptr_factory_.GetWeakPtr()));
}
int ExtensionInfoBar::ContentMinimumWidth() {
return NonExtensionViewWidth() +
GetDelegate()->extension_view_host()->view()->GetMinimumSize().width();
}
void ExtensionInfoBar::OnMenuButtonClicked(views::View* source,
const gfx::Point& point) {
if (!owner())
return; // We're closing; don't call anything, it might access the owner.
const extensions::Extension* extension =
GetDelegate()->extension_view_host()->extension();
DCHECK(icon_as_menu_);
scoped_refptr<ExtensionContextMenuModel> options_menu_contents =
new ExtensionContextMenuModel(extension, browser_);
DCHECK_EQ(icon_as_menu_, source);
RunMenuAt(options_menu_contents.get(),
icon_as_menu_,
views::MenuItemView::TOPLEFT);
}
void ExtensionInfoBar::OnImageLoaded(const gfx::Image& image) {
if (!GetDelegate())
return; // The delegate can go away while we asynchronously load images.
const gfx::ImageSkia* icon = NULL;
// Fall back on the default extension icon on failure.
ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
if (image.IsEmpty())
icon = rb.GetImageNamed(IDR_EXTENSIONS_SECTION).ToImageSkia();
else
icon = image.ToImageSkia();
if (icon_as_menu_) {
const gfx::ImageSkia* drop_image =
rb.GetImageNamed(IDR_APP_DROPARROW).ToImageSkia();
gfx::CanvasImageSource* source = new MenuImageSource(*icon, *drop_image);
gfx::ImageSkia menu_image = gfx::ImageSkia(source, source->size());
icon_as_menu_->SetIcon(menu_image);
} else {
icon_as_image_->SetImage(*icon);
}
infobar_icon_->SizeToPreferredSize();
infobar_icon_->SetVisible(true);
Layout();
}
ExtensionInfoBarDelegate* ExtensionInfoBar::GetDelegate() {
return delegate()->AsExtensionInfoBarDelegate();
}
int ExtensionInfoBar::NonExtensionViewWidth() const {
return infobar_icon_->width() + kIconHorizontalMargin;
}
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