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Unified Diff: chrome/browser/search/suggestions/suggestions_source.cc

Issue 1887403002: Create a WebUIController for chrome://suggestions (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: move SuggestionsSource Created 4 years, 8 months ago
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Index: chrome/browser/search/suggestions/suggestions_source.cc
diff --git a/chrome/browser/search/suggestions/suggestions_source.cc b/chrome/browser/search/suggestions/suggestions_source.cc
deleted file mode 100644
index 7c237d1d325a06af043d462c7a821aa86d8ab380..0000000000000000000000000000000000000000
--- a/chrome/browser/search/suggestions/suggestions_source.cc
+++ /dev/null
@@ -1,218 +0,0 @@
-// Copyright 2014 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/search/suggestions/suggestions_source.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <vector>
-
-#include "base/barrier_closure.h"
-#include "base/base64.h"
-#include "base/bind.h"
-#include "base/memory/ref_counted_memory.h"
-#include "base/strings/string16.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/search/suggestions/suggestions_service_factory.h"
-#include "chrome/common/url_constants.h"
-#include "components/suggestions/suggestions_service.h"
-#include "net/base/escape.h"
-#include "ui/base/l10n/time_format.h"
-#include "ui/gfx/codec/png_codec.h"
-#include "ui/gfx/image/image_skia.h"
-#include "url/gurl.h"
-
-namespace suggestions {
-
-namespace {
-
-const char kHtmlHeader[] =
- "<!DOCTYPE html>\n<html>\n<head>\n<title>Suggestions</title>\n"
- "<meta charset=\"utf-8\">\n"
- "<style type=\"text/css\">\nli {white-space: nowrap;}\n</style>\n";
-const char kHtmlBody[] = "</head>\n<body>\n";
-const char kHtmlFooter[] = "</body>\n</html>\n";
-
-const char kRefreshPath[] = "refresh";
-
-std::string GetRefreshHtml(bool is_refresh) {
- if (is_refresh)
- return "<p>Refreshing in the background, reload to see new data.</p>\n";
- return std::string("<p><a href=\"") + chrome::kChromeUISuggestionsURL +
- kRefreshPath + "\">Refresh</a></p>\n";
-}
-// Returns the HTML needed to display the suggestions.
-std::string RenderOutputHtml(
- bool is_refresh,
- const SuggestionsProfile& profile,
- const std::map<GURL, std::string>& base64_encoded_pngs) {
- std::vector<std::string> out;
- out.push_back(kHtmlHeader);
- out.push_back(kHtmlBody);
- out.push_back("<h1>Suggestions</h1>\n");
- out.push_back(GetRefreshHtml(is_refresh));
- out.push_back("<ul>");
- int64_t now = (base::Time::NowFromSystemTime() - base::Time::UnixEpoch())
- .ToInternalValue();
- size_t size = profile.suggestions_size();
- for (size_t i = 0; i < size; ++i) {
- const ChromeSuggestion& suggestion = profile.suggestions(i);
- base::TimeDelta remaining_time = base::TimeDelta::FromMicroseconds(
- suggestion.expiry_ts() - now);
- base::string16 remaining_time_formatted = ui::TimeFormat::Detailed(
- ui::TimeFormat::Format::FORMAT_DURATION,
- ui::TimeFormat::Length::LENGTH_LONG,
- -1, remaining_time);
- std::string line;
- line += "<li><a href=\"";
- line += net::EscapeForHTML(suggestion.url());
- line += "\" target=\"_blank\">";
- line += net::EscapeForHTML(suggestion.title());
- std::map<GURL, std::string>::const_iterator it =
- base64_encoded_pngs.find(GURL(suggestion.url()));
- if (it != base64_encoded_pngs.end()) {
- line += "<br><img src='";
- line += it->second;
- line += "'>";
- }
- line += "</a> Expires in ";
- line += base::UTF16ToUTF8(remaining_time_formatted);
- std::vector<std::string> providers;
- for (int p = 0; p < suggestion.providers_size(); ++p)
- providers.push_back(base::IntToString(suggestion.providers(p)));
- line += ". Provider IDs: " + base::JoinString(providers, ", ");
- line += "</li>\n";
- out.push_back(line);
- }
- out.push_back("</ul>");
- out.push_back(kHtmlFooter);
- return base::JoinString(out, base::StringPiece());
-}
-
-// Returns the HTML needed to display that no suggestions are available.
-std::string RenderOutputHtmlNoSuggestions(bool is_refresh) {
- std::vector<std::string> out;
- out.push_back(kHtmlHeader);
- out.push_back(kHtmlBody);
- out.push_back("<h1>Suggestions</h1>\n");
- out.push_back("<p>You have no suggestions.</p>\n");
- out.push_back(GetRefreshHtml(is_refresh));
- out.push_back(kHtmlFooter);
- return base::JoinString(out, base::StringPiece());
-}
-
-} // namespace
-
-SuggestionsSource::SuggestionsSource(Profile* profile)
- : profile_(profile), weak_ptr_factory_(this) {}
-
-SuggestionsSource::~SuggestionsSource() {}
-
-SuggestionsSource::RequestContext::RequestContext(
- bool is_refresh_in,
- const SuggestionsProfile& suggestions_profile_in,
- const content::URLDataSource::GotDataCallback& callback_in)
- : is_refresh(is_refresh_in),
- suggestions_profile(suggestions_profile_in), // Copy.
- callback(callback_in) // Copy.
-{}
-
-SuggestionsSource::RequestContext::~RequestContext() {}
-
-std::string SuggestionsSource::GetSource() const {
- return chrome::kChromeUISuggestionsHost;
-}
-
-void SuggestionsSource::StartDataRequest(
- const std::string& path, int render_process_id, int render_frame_id,
- const content::URLDataSource::GotDataCallback& callback) {
- // If this was called as "chrome://suggestions/refresh", we also trigger an
- // async update of the suggestions.
- bool is_refresh = (path == kRefreshPath);
-
- SuggestionsService* suggestions_service =
- SuggestionsServiceFactory::GetForProfile(profile_);
-
- // |suggestions_service| is null for guest profiles.
- if (!suggestions_service) {
- std::string output = RenderOutputHtmlNoSuggestions(is_refresh);
- callback.Run(base::RefCountedString::TakeString(&output));
- return;
- }
-
- if (is_refresh)
- suggestions_service->FetchSuggestionsData();
-
- SuggestionsProfile suggestions_profile =
- suggestions_service->GetSuggestionsDataFromCache();
- size_t size = suggestions_profile.suggestions_size();
- if (!size) {
- std::string output = RenderOutputHtmlNoSuggestions(is_refresh);
- callback.Run(base::RefCountedString::TakeString(&output));
- } else {
- RequestContext* context =
- new RequestContext(is_refresh, suggestions_profile, callback);
- base::Closure barrier = BarrierClosure(
- size, base::Bind(&SuggestionsSource::OnThumbnailsFetched,
- weak_ptr_factory_.GetWeakPtr(), context));
- for (size_t i = 0; i < size; ++i) {
- const ChromeSuggestion& suggestion = suggestions_profile.suggestions(i);
- // Fetch the thumbnail for this URL (exercising the fetcher). After all
- // fetches are done, including NULL callbacks for unavailable thumbnails,
- // SuggestionsSource::OnThumbnailsFetched will be called.
- SuggestionsService* suggestions_service(
- SuggestionsServiceFactory::GetForProfile(profile_));
- suggestions_service->GetPageThumbnail(
- GURL(suggestion.url()),
- base::Bind(&SuggestionsSource::OnThumbnailAvailable,
- weak_ptr_factory_.GetWeakPtr(), context, barrier));
- }
- }
-}
-
-std::string SuggestionsSource::GetMimeType(const std::string& path) const {
- return "text/html";
-}
-
-base::MessageLoop* SuggestionsSource::MessageLoopForRequestPath(
- const std::string& path) const {
- // This can be accessed from the IO thread.
- return content::URLDataSource::MessageLoopForRequestPath(path);
-}
-
-void SuggestionsSource::OnThumbnailsFetched(RequestContext* context) {
- std::unique_ptr<RequestContext> context_deleter(context);
-
- std::string output =
- RenderOutputHtml(context->is_refresh, context->suggestions_profile,
- context->base64_encoded_pngs);
- context->callback.Run(base::RefCountedString::TakeString(&output));
-}
-
-void SuggestionsSource::OnThumbnailAvailable(RequestContext* context,
- base::Closure barrier,
- const GURL& url,
- const SkBitmap* bitmap) {
- if (bitmap) {
- std::vector<unsigned char> output;
- gfx::PNGCodec::EncodeBGRASkBitmap(*bitmap, false, &output);
-
- std::string encoded_output;
- base::Base64Encode(
- base::StringPiece(reinterpret_cast<const char*>(output.data()),
- output.size()),
- &encoded_output);
- context->base64_encoded_pngs[url] = "data:image/png;base64,";
- context->base64_encoded_pngs[url] += encoded_output;
- }
- barrier.Run();
-}
-
-} // namespace suggestions
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