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// Copyright (c) 2011 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_host.h"
#include "chrome/browser/extensions/extension_infobar_delegate.h"
#include "chrome/browser/platform_util.h"
#include "chrome/browser/ui/views/infobars/infobar_background.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_icon_set.h"
#include "chrome/common/extensions/extension_resource.h"
#include "grit/theme_resources.h"
#include "ui/base/animation/slide_animation.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas_skia.h"
#include "views/controls/button/menu_button.h"
#include "views/controls/menu/menu_2.h"
#include "views/widget/widget.h"
// ExtensionInfoBarDelegate ---------------------------------------------------
InfoBar* ExtensionInfoBarDelegate::CreateInfoBar() {
return new ExtensionInfoBar(this);
}
// ExtensionInfoBar -----------------------------------------------------------
namespace {
// The horizontal margin between the menu and the Extension (HTML) view.
static const int kMenuHorizontalMargin = 1;
};
ExtensionInfoBar::ExtensionInfoBar(ExtensionInfoBarDelegate* delegate)
: InfoBarView(delegate),
delegate_(delegate),
menu_(NULL),
ALLOW_THIS_IN_INITIALIZER_LIST(tracker_(this)) {
delegate->set_observer(this);
ExtensionView* extension_view = delegate->extension_host()->view();
int height = extension_view->GetPreferredSize().height();
SetBarTargetHeight((height > 0) ? (height + kSeparatorLineHeight) : 0);
// Get notified of resize events for the ExtensionView.
extension_view->SetContainer(this);
}
ExtensionInfoBar::~ExtensionInfoBar() {
if (GetDelegate()) {
GetDelegate()->extension_host()->view()->SetContainer(NULL);
GetDelegate()->set_observer(NULL);
}
}
void ExtensionInfoBar::Layout() {
InfoBarView::Layout();
gfx::Size menu_size = menu_->GetPreferredSize();
menu_->SetBounds(StartX(), OffsetY(menu_size), menu_size.width(),
menu_size.height());
GetDelegate()->extension_host()->view()->SetBounds(
menu_->bounds().right() + kMenuHorizontalMargin, 0,
std::max(0, EndX() - StartX() - ContentMinimumWidth()), height());
}
void ExtensionInfoBar::ViewHierarchyChanged(bool is_add,
View* parent,
View* child) {
if (!is_add || (child != this) || (menu_ != NULL)) {
InfoBarView::ViewHierarchyChanged(is_add, parent, child);
return;
}
menu_ = new views::MenuButton(NULL, std::wstring(), this, false);
menu_->SetVisible(false);
AddChildView(menu_);
ExtensionHost* extension_host = GetDelegate()->extension_host();
AddChildView(extension_host->view());
// This must happen after adding all other children so InfoBarView can ensure
// the close button is the last child.
InfoBarView::ViewHierarchyChanged(is_add, parent, child);
// 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 Extension* extension = extension_host->extension();
int image_size = Extension::EXTENSION_ICON_BITTY;
ExtensionResource icon_resource = extension->GetIconResource(
image_size, ExtensionIconSet::MATCH_EXACTLY);
if (!icon_resource.relative_path().empty()) {
tracker_.LoadImage(extension, icon_resource,
gfx::Size(image_size, image_size), ImageLoadingTracker::DONT_CACHE);
} else {
OnImageLoaded(NULL, icon_resource, 0);
}
}
int ExtensionInfoBar::ContentMinimumWidth() const {
return menu_->GetPreferredSize().width() + kMenuHorizontalMargin;
}
void ExtensionInfoBar::OnExtensionMouseMove(ExtensionView* view) {
}
void ExtensionInfoBar::OnExtensionMouseLeave(ExtensionView* view) {
}
void ExtensionInfoBar::OnExtensionPreferredSizeChanged(ExtensionView* view) {
ExtensionInfoBarDelegate* delegate = GetDelegate();
DCHECK_EQ(delegate->extension_host()->view(), view);
// When the infobar is closed, it animates to 0 vertical height. We'll
// continue to get size changed notifications from the ExtensionView, but we
// need to ignore them otherwise we'll try to re-animate open (and leak the
// infobar view).
if (delegate->closing())
return;
view->SetVisible(true);
if (height() == 0)
animation()->Reset(0.0);
// Clamp height to a min and a max size of between 1 and 2 InfoBars.
SetBarTargetHeight(std::min(2 * kDefaultBarTargetHeight,
std::max(kDefaultBarTargetHeight, view->GetPreferredSize().height())));
animation()->Show();
}
void ExtensionInfoBar::OnImageLoaded(SkBitmap* image,
const ExtensionResource& resource,
int index) {
if (!GetDelegate())
return; // The delegate can go away while we asynchronously load images.
SkBitmap* icon = image;
// Fall back on the default extension icon on failure.
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
if (!image || image->empty())
icon = rb.GetBitmapNamed(IDR_EXTENSIONS_SECTION);
SkBitmap* drop_image = rb.GetBitmapNamed(IDR_APP_DROPARROW);
int image_size = Extension::EXTENSION_ICON_BITTY;
// The margin between the extension icon and the drop-down arrow bitmap.
static const int kDropArrowLeftMargin = 3;
scoped_ptr<gfx::CanvasSkia> canvas(new gfx::CanvasSkia(
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());
menu_->SetVisible(true);
Layout();
}
void ExtensionInfoBar::OnDelegateDeleted() {
GetDelegate()->extension_host()->view()->SetContainer(NULL);
delegate_ = NULL;
}
void ExtensionInfoBar::RunMenu(View* source, const gfx::Point& pt) {
const Extension* extension = GetDelegate()->extension_host()->extension();
if (!extension->ShowConfigureContextMenus())
return;
if (!options_menu_contents_.get()) {
Browser* browser = BrowserView::GetBrowserViewForNativeWindow(
platform_util::GetTopLevel(source->GetWidget()->GetNativeView()))->
browser();
options_menu_contents_ = new ExtensionContextMenuModel(extension, browser,
NULL);
}
options_menu_menu_.reset(new views::Menu2(options_menu_contents_.get()));
options_menu_menu_->RunMenuAt(pt, views::Menu2::ALIGN_TOPLEFT);
}
ExtensionInfoBarDelegate* ExtensionInfoBar::GetDelegate() {
return delegate_ ? delegate_->AsExtensionInfoBarDelegate() : NULL;
}
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