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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/infobar_container.h"
#include "app/l10n_util.h"
#include "chrome/browser/tab_contents/infobar_delegate.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/browser/ui/views/infobars/infobars.h"
#include "chrome/common/notification_details.h"
#include "chrome/common/notification_source.h"
#include "grit/generated_resources.h"
// InfoBarContainer, public: ---------------------------------------------------
InfoBarContainer::InfoBarContainer(Delegate* delegate)
: delegate_(delegate),
tab_contents_(NULL) {
SetID(VIEW_ID_INFO_BAR_CONTAINER);
SetAccessibleName(l10n_util::GetString(IDS_ACCNAME_INFOBAR_CONTAINER));
}
InfoBarContainer::~InfoBarContainer() {
// We NULL this pointer before resetting the TabContents to prevent view
// hierarchy modifications from attempting to resize the delegate which
// could be in the process of shutting down.
delegate_ = NULL;
ChangeTabContents(NULL);
}
void InfoBarContainer::ChangeTabContents(TabContents* contents) {
registrar_.RemoveAll();
// No need to delete the child views here, their removal from the view
// hierarchy does this automatically (see InfoBar::InfoBarRemoved).
RemoveAllChildViews(false);
tab_contents_ = contents;
if (tab_contents_) {
UpdateInfoBars();
Source<TabContents> tc_source(tab_contents_);
registrar_.Add(this, NotificationType::TAB_CONTENTS_INFOBAR_ADDED,
tc_source);
registrar_.Add(this, NotificationType::TAB_CONTENTS_INFOBAR_REMOVED,
tc_source);
registrar_.Add(this, NotificationType::TAB_CONTENTS_INFOBAR_REPLACED,
tc_source);
}
}
void InfoBarContainer::InfoBarAnimated(bool completed) {
if (delegate_)
delegate_->InfoBarSizeChanged(!completed);
}
void InfoBarContainer::RemoveDelegate(InfoBarDelegate* delegate) {
tab_contents_->RemoveInfoBar(delegate);
}
// InfoBarContainer, views::View overrides: ------------------------------------
gfx::Size InfoBarContainer::GetPreferredSize() {
// We do not have a preferred width (we will expand to fit the available width
// of the delegate). Our preferred height is the sum of the preferred
// heights of the InfoBars contained within us.
int height = 0;
for (int i = 0; i < GetChildViewCount(); ++i)
height += GetChildViewAt(i)->GetPreferredSize().height();
return gfx::Size(0, height);
}
void InfoBarContainer::Layout() {
int top = 0;
for (int i = 0; i < GetChildViewCount(); ++i) {
views::View* child = GetChildViewAt(i);
gfx::Size ps = child->GetPreferredSize();
child->SetBounds(0, top, width(), ps.height());
top += ps.height();
}
}
AccessibilityTypes::Role InfoBarContainer::GetAccessibleRole() {
return AccessibilityTypes::ROLE_GROUPING;
}
void InfoBarContainer::ViewHierarchyChanged(bool is_add,
views::View* parent,
views::View* child) {
if (parent == this && child->GetParent() == this) {
if (delegate_) {
// An InfoBar child was added or removed. Tell the delegate it needs to
// re-layout since our preferred size will have changed.
delegate_->InfoBarSizeChanged(false);
}
}
}
// InfoBarContainer, NotificationObserver implementation: ----------------------
void InfoBarContainer::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::TAB_CONTENTS_INFOBAR_ADDED) {
AddInfoBar(Details<InfoBarDelegate>(details).ptr(), true); // animated
} else if (type == NotificationType::TAB_CONTENTS_INFOBAR_REMOVED) {
RemoveInfoBar(Details<InfoBarDelegate>(details).ptr(), true); // animated
} else if (type == NotificationType::TAB_CONTENTS_INFOBAR_REPLACED) {
std::pair<InfoBarDelegate*, InfoBarDelegate*>* delegates =
Details<std::pair<InfoBarDelegate*, InfoBarDelegate*> >(details).ptr();
ReplaceInfoBar(delegates->first, delegates->second);
} else {
NOTREACHED();
}
}
// InfoBarContainer, private: --------------------------------------------------
void InfoBarContainer::UpdateInfoBars() {
for (int i = 0; i < tab_contents_->infobar_delegate_count(); ++i) {
InfoBarDelegate* delegate = tab_contents_->GetInfoBarDelegateAt(i);
InfoBar* infobar = delegate->CreateInfoBar();
infobar->set_container(this);
AddChildView(infobar);
infobar->Open();
}
}
void InfoBarContainer::AddInfoBar(InfoBarDelegate* delegate,
bool use_animation) {
InfoBar* infobar = delegate->CreateInfoBar();
infobar->set_container(this);
AddChildView(infobar);
if (use_animation)
infobar->AnimateOpen();
else
infobar->Open();
}
void InfoBarContainer::RemoveInfoBar(InfoBarDelegate* delegate,
bool use_animation) {
// Search for infobar associated with |delegate| among child views.
// We cannot search for |delegate| in tab_contents, because an infobar remains
// a child view until its close animation completes, which can result in
// different number of infobars in container and infobar delegates in tab
// contents.
for (int i = 0; i < GetChildViewCount(); ++i) {
InfoBar* infobar = static_cast<InfoBar*>(GetChildViewAt(i));
if (infobar->delegate() == delegate) {
if (use_animation) {
// The View will be removed once the Close animation completes.
infobar->AnimateClose();
} else {
infobar->Close();
}
break;
}
}
}
void InfoBarContainer::ReplaceInfoBar(InfoBarDelegate* old_delegate,
InfoBarDelegate* new_delegate) {
RemoveInfoBar(old_delegate, false); // no animation
AddInfoBar(new_delegate, false); // no animation
}
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