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// Copyright 2013 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 "components/dom_distiller/webui/dom_distiller_handler.h"
#include <vector>
#include "base/bind.h"
#include "base/values.h"
#include "components/dom_distiller/core/dom_distiller_service.h"
#include "components/dom_distiller/core/proto/distilled_page.pb.h"
#include "components/dom_distiller/core/url_utils.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "net/base/escape.h"
#include "url/gurl.h"
namespace dom_distiller {
namespace {
GURL GetViewUrlFromArgs(const std::string& scheme,
const base::ListValue* args) {
std::string url;
if (args->GetString(0, &url)) {
const GURL gurl(url);
if (url_utils::IsUrlDistillable(gurl)) {
return url_utils::GetDistillerViewUrlFromUrl(scheme, gurl);
}
}
return GURL();
}
} // namespace
DomDistillerHandler::DomDistillerHandler(DomDistillerService* service,
const std::string& scheme)
: service_(service), article_scheme_(scheme), weak_ptr_factory_(this) {}
DomDistillerHandler::~DomDistillerHandler() {}
void DomDistillerHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"requestEntries",
base::Bind(&DomDistillerHandler::HandleRequestEntries,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"addArticle",
base::Bind(&DomDistillerHandler::HandleAddArticle,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"selectArticle",
base::Bind(&DomDistillerHandler::HandleSelectArticle,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"viewUrl",
base::Bind(&DomDistillerHandler::HandleViewUrl, base::Unretained(this)));
}
void DomDistillerHandler::HandleAddArticle(const base::ListValue* args) {
std::string url;
args->GetString(0, &url);
GURL gurl(url);
if (gurl.is_valid()) {
service_->AddToList(
gurl,
service_->CreateDefaultDistillerPage(
web_ui()->GetWebContents()->GetContainerBounds().size()),
base::Bind(base::Bind(&DomDistillerHandler::OnArticleAdded,
base::Unretained(this))));
} else {
web_ui()->CallJavascriptFunction("domDistiller.onArticleAddFailed");
}
}
void DomDistillerHandler::HandleViewUrl(const base::ListValue* args) {
GURL view_url = GetViewUrlFromArgs(article_scheme_, args);
if (view_url.is_valid()) {
web_ui()->GetWebContents()->GetController().LoadURL(
view_url,
content::Referrer(),
ui::PAGE_TRANSITION_GENERATED,
std::string());
} else {
web_ui()->CallJavascriptFunction("domDistiller.onViewUrlFailed");
}
}
void DomDistillerHandler::HandleSelectArticle(const base::ListValue* args) {
std::string entry_id;
args->GetString(0, &entry_id);
GURL url =
url_utils::GetDistillerViewUrlFromEntryId(article_scheme_, entry_id);
DCHECK(url.is_valid());
web_ui()->GetWebContents()->GetController().LoadURL(
url,
content::Referrer(),
ui::PAGE_TRANSITION_GENERATED,
std::string());
}
void DomDistillerHandler::HandleRequestEntries(const base::ListValue* args) {
base::ListValue entries;
const std::vector<ArticleEntry>& entries_specifics = service_->GetEntries();
for (std::vector<ArticleEntry>::const_iterator it = entries_specifics.begin();
it != entries_specifics.end();
++it) {
const ArticleEntry& article = *it;
DCHECK(IsEntryValid(article));
scoped_ptr<base::DictionaryValue> entry(new base::DictionaryValue());
entry->SetString("entry_id", article.entry_id());
std::string title = (!article.has_title() || article.title().empty())
? article.entry_id()
: article.title();
entry->SetString("title", net::EscapeForHTML(title));
entries.Append(entry.release());
}
// TODO(nyquist): Write a test that ensures we sanitize the data we send.
web_ui()->CallJavascriptFunction("domDistiller.onReceivedEntries", entries);
}
void DomDistillerHandler::OnArticleAdded(bool article_available) {
// TODO(nyquist): Update this function.
if (article_available) {
HandleRequestEntries(NULL);
} else {
web_ui()->CallJavascriptFunction("domDistiller.onArticleAddFailed");
}
}
} // namespace dom_distiller
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