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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/bookmarks/bookmark_tab_helper.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/bookmarks/bookmark_node_data.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/bookmarks/bookmark_tab_helper_delegate.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/browser/ui/webui/chrome_web_ui.h"
#include "chrome/common/chrome_notification_types.h"
#include "content/browser/tab_contents/navigation_controller.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/common/notification_service.h"
static bool ForceBookmarkBarVisible(WebUI* ui) {
return ui && static_cast<ChromeWebUI*>(ui)->force_bookmark_bar_visible();
}
BookmarkTabHelper::BookmarkTabHelper(TabContentsWrapper* tab_contents)
: TabContentsObserver(tab_contents->tab_contents()),
is_starred_(false),
tab_contents_wrapper_(tab_contents),
delegate_(NULL),
bookmark_drag_(NULL) {
// Register for notifications about URL starredness changing on any profile.
registrar_.Add(this, chrome::NOTIFICATION_URLS_STARRED,
NotificationService::AllBrowserContextsAndSources());
registrar_.Add(this, chrome::NOTIFICATION_BOOKMARK_MODEL_LOADED,
NotificationService::AllBrowserContextsAndSources());
}
BookmarkTabHelper::~BookmarkTabHelper() {
// We don't want any notifications while we're running our destructor.
registrar_.RemoveAll();
}
bool BookmarkTabHelper::ShouldShowBookmarkBar() {
if (tab_contents()->showing_interstitial_page())
return false;
// See TabContents::GetWebUIForCurrentState() comment for more info. This case
// is very similar, but for non-first loads, we want to use the committed
// entry. This is so the bookmarks bar disappears at the same time the page
// does.
if (tab_contents()->controller().GetLastCommittedEntry()) {
// Not the first load, always use the committed Web UI.
return ForceBookmarkBarVisible(tab_contents()->committed_web_ui());
}
// When it's the first load, we know either the pending one or the committed
// one will have the Web UI in it (see GetWebUIForCurrentState), and only one
// of them will be valid, so we can just check both.
return ForceBookmarkBarVisible(tab_contents()->web_ui());
}
void BookmarkTabHelper::DidNavigateMainFramePostCommit(
const content::LoadCommittedDetails& /*details*/,
const ViewHostMsg_FrameNavigate_Params& /*params*/) {
UpdateStarredStateForCurrentURL();
}
void BookmarkTabHelper::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_BOOKMARK_MODEL_LOADED:
// BookmarkModel finished loading, fall through to update starred state.
case chrome::NOTIFICATION_URLS_STARRED: {
// Somewhere, a URL has been starred.
// Ignore notifications for profiles other than our current one.
Profile* source_profile = Source<Profile>(source).ptr();
if (!source_profile ||
!source_profile->IsSameProfile(tab_contents_wrapper_->profile()))
return;
UpdateStarredStateForCurrentURL();
break;
}
default:
NOTREACHED();
}
}
void BookmarkTabHelper::SetBookmarkDragDelegate(
BookmarkTabHelper::BookmarkDrag* bookmark_drag) {
bookmark_drag_ = bookmark_drag;
}
BookmarkTabHelper::BookmarkDrag*
BookmarkTabHelper::GetBookmarkDragDelegate() {
return bookmark_drag_;
}
void BookmarkTabHelper::UpdateStarredStateForCurrentURL() {
Profile* profile =
Profile::FromBrowserContext(tab_contents()->browser_context());
BookmarkModel* model = profile->GetBookmarkModel();
const bool old_state = is_starred_;
is_starred_ = (model && model->IsBookmarked(tab_contents()->GetURL()));
if (is_starred_ != old_state && delegate())
delegate()->URLStarredChanged(tab_contents_wrapper_, is_starred_);
}
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