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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/custom_home_pages_table_model.h"
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "app/table_model_observer.h"
#include "base/i18n/rtl.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/browser_list.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "gfx/codec/png_codec.h"
#include "googleurl/src/gurl.h"
#include "grit/app_resources.h"
#include "grit/generated_resources.h"
#include "net/base/net_util.h"
#include "third_party/skia/include/core/SkBitmap.h"
struct CustomHomePagesTableModel::Entry {
Entry() : title_handle(0), fav_icon_handle(0) {}
// URL of the page.
GURL url;
// Page title. If this is empty, we'll display the URL as the entry.
std::wstring title;
// Icon for the page.
SkBitmap icon;
// If non-zero, indicates we're loading the title for the page.
HistoryService::Handle title_handle;
// If non-zero, indicates we're loading the favicon for the page.
FaviconService::Handle fav_icon_handle;
};
CustomHomePagesTableModel::CustomHomePagesTableModel(Profile* profile)
: default_favicon_(NULL),
profile_(profile),
observer_(NULL) {
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
default_favicon_ = rb.GetBitmapNamed(IDR_DEFAULT_FAVICON);
}
CustomHomePagesTableModel::~CustomHomePagesTableModel() {
}
void CustomHomePagesTableModel::SetURLs(const std::vector<GURL>& urls) {
entries_.resize(urls.size());
for (size_t i = 0; i < urls.size(); ++i) {
entries_[i].url = urls[i];
entries_[i].title.erase();
entries_[i].icon.reset();
LoadTitleAndFavIcon(&(entries_[i]));
}
// Complete change, so tell the view to just rebuild itself.
if (observer_)
observer_->OnModelChanged();
}
void CustomHomePagesTableModel::Add(int index, const GURL& url) {
DCHECK(index >= 0 && index <= RowCount());
entries_.insert(entries_.begin() + static_cast<size_t>(index), Entry());
entries_[index].url = url;
if (observer_)
observer_->OnItemsAdded(index, 1);
}
void CustomHomePagesTableModel::Remove(int index) {
DCHECK(index >= 0 && index < RowCount());
Entry* entry = &(entries_[index]);
// Cancel any pending load requests now so we don't deref a bogus pointer when
// we get the loaded notification.
if (entry->title_handle) {
HistoryService* history_service =
profile_->GetHistoryService(Profile::EXPLICIT_ACCESS);
if (history_service)
history_service->CancelRequest(entry->title_handle);
}
if (entry->fav_icon_handle) {
FaviconService* favicon_service =
profile_->GetFaviconService(Profile::EXPLICIT_ACCESS);
if (favicon_service)
favicon_service->CancelRequest(entry->fav_icon_handle);
}
entries_.erase(entries_.begin() + static_cast<size_t>(index));
if (observer_)
observer_->OnItemsRemoved(index, 1);
}
void CustomHomePagesTableModel::SetToCurrentlyOpenPages() {
// Remove the current entries.
while (RowCount())
Remove(0);
// And add all tabs for all open browsers with our profile.
int add_index = 0;
for (BrowserList::const_iterator browser_i = BrowserList::begin();
browser_i != BrowserList::end(); ++browser_i) {
Browser* browser = *browser_i;
if (browser->profile() != profile_)
continue; // Skip incognito browsers.
for (int tab_index = 0; tab_index < browser->tab_count(); ++tab_index) {
const GURL url = browser->GetTabContentsAt(tab_index)->GetURL();
if (!url.is_empty() &&
!(url.SchemeIs(chrome::kChromeUIScheme) &&
url.host() == chrome::kChromeUISettingsHost))
Add(add_index++, url);
}
}
}
std::vector<GURL> CustomHomePagesTableModel::GetURLs() {
std::vector<GURL> urls(entries_.size());
for (size_t i = 0; i < entries_.size(); ++i)
urls[i] = entries_[i].url;
return urls;
}
int CustomHomePagesTableModel::RowCount() {
return static_cast<int>(entries_.size());
}
std::wstring CustomHomePagesTableModel::GetText(int row, int column_id) {
DCHECK(column_id == 0);
DCHECK(row >= 0 && row < RowCount());
return entries_[row].title.empty() ? FormattedURL(row) : entries_[row].title;
}
SkBitmap CustomHomePagesTableModel::GetIcon(int row) {
DCHECK(row >= 0 && row < RowCount());
return entries_[row].icon.isNull() ? *default_favicon_ : entries_[row].icon;
}
std::wstring CustomHomePagesTableModel::GetTooltip(int row) {
return entries_[row].title.empty() ? std::wstring() : UTF16ToWideHack(
l10n_util::GetStringFUTF16(IDS_OPTIONS_STARTUP_PAGE_TOOLTIP,
WideToUTF16Hack(entries_[row].title),
WideToUTF16Hack(FormattedURL(row))));
}
void CustomHomePagesTableModel::SetObserver(TableModelObserver* observer) {
observer_ = observer;
}
void CustomHomePagesTableModel::LoadTitleAndFavIcon(Entry* entry) {
HistoryService* history_service =
profile_->GetHistoryService(Profile::EXPLICIT_ACCESS);
if (history_service) {
entry->title_handle = history_service->QueryURL(entry->url, false,
&query_consumer_,
NewCallback(this, &CustomHomePagesTableModel::OnGotTitle));
}
FaviconService* favicon_service =
profile_->GetFaviconService(Profile::EXPLICIT_ACCESS);
if (favicon_service) {
entry->fav_icon_handle = favicon_service->GetFaviconForURL(entry->url,
&query_consumer_,
NewCallback(this, &CustomHomePagesTableModel::OnGotFavIcon));
}
}
void CustomHomePagesTableModel::OnGotTitle(HistoryService::Handle handle,
bool found_url,
const history::URLRow* row,
history::VisitVector* visits) {
int entry_index;
Entry* entry =
GetEntryByLoadHandle(&Entry::title_handle, handle, &entry_index);
if (!entry) {
// The URLs changed before we were called back.
return;
}
entry->title_handle = 0;
if (found_url && !row->title().empty()) {
entry->title = UTF16ToWide(row->title());
if (observer_)
observer_->OnItemsChanged(static_cast<int>(entry_index), 1);
}
}
void CustomHomePagesTableModel::OnGotFavIcon(
FaviconService::Handle handle,
bool know_fav_icon,
scoped_refptr<RefCountedMemory> image_data,
bool is_expired,
GURL icon_url) {
int entry_index;
Entry* entry =
GetEntryByLoadHandle(&Entry::fav_icon_handle, handle, &entry_index);
if (!entry) {
// The URLs changed before we were called back.
return;
}
entry->fav_icon_handle = 0;
if (know_fav_icon && image_data.get() && image_data->size()) {
int width, height;
std::vector<unsigned char> decoded_data;
if (gfx::PNGCodec::Decode(image_data->front(),
image_data->size(),
gfx::PNGCodec::FORMAT_BGRA, &decoded_data,
&width, &height)) {
entry->icon.setConfig(SkBitmap::kARGB_8888_Config, width, height);
entry->icon.allocPixels();
memcpy(entry->icon.getPixels(), &decoded_data.front(),
width * height * 4);
if (observer_)
observer_->OnItemsChanged(static_cast<int>(entry_index), 1);
}
}
}
CustomHomePagesTableModel::Entry*
CustomHomePagesTableModel::GetEntryByLoadHandle(
CancelableRequestProvider::Handle Entry::* member,
CancelableRequestProvider::Handle handle,
int* index) {
for (size_t i = 0; i < entries_.size(); ++i) {
if (entries_[i].*member == handle) {
*index = static_cast<int>(i);
return &entries_[i];
}
}
return NULL;
}
std::wstring CustomHomePagesTableModel::FormattedURL(int row) const {
std::string languages =
profile_->GetPrefs()->GetString(prefs::kAcceptLanguages);
string16 url = net::FormatUrl(entries_[row].url, languages);
url = base::i18n::GetDisplayStringInLTRDirectionality(url);
return UTF16ToWide(url);
}
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