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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "mojo/fetcher/about_fetcher.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/files/file_path.h" | |
| 9 #include "base/logging.h" | |
| 10 #include "base/memory/scoped_ptr.h" | |
| 11 #include "base/message_loop/message_loop.h" | |
| 12 | |
| 13 namespace mojo { | |
| 14 namespace fetcher { | |
| 15 namespace { | |
| 16 | |
| 17 void RunFetcherCallback(const shell::Fetcher::FetchCallback& callback, | |
| 18 scoped_ptr<shell::Fetcher> fetcher, | |
| 19 bool success) { | |
| 20 callback.Run(success ? fetcher.Pass() : nullptr); | |
| 21 } | |
| 22 | |
| 23 } // namespace | |
| 24 | |
| 25 const char AboutFetcher::kAboutScheme[] = "about"; | |
| 26 const char AboutFetcher::kAboutBlankURL[] = "about:blank"; | |
| 27 | |
| 28 // static | |
| 29 void AboutFetcher::Start(const GURL& url, | |
| 30 const FetchCallback& loader_callback) { | |
| 31 // The object manages its own lifespan. | |
| 32 new AboutFetcher(url, loader_callback); | |
| 33 } | |
| 34 | |
| 35 AboutFetcher::AboutFetcher(const GURL& url, | |
| 36 const FetchCallback& loader_callback) | |
| 37 : Fetcher(loader_callback), url_(url) { | |
| 38 BuildResponse(); | |
| 39 } | |
| 40 | |
| 41 AboutFetcher::~AboutFetcher() {} | |
| 42 | |
| 43 void AboutFetcher::BuildResponse() { | |
| 44 if (url_ != GURL(kAboutBlankURL)) { | |
| 45 PostToRunCallback(false); | |
| 46 return; | |
| 47 } | |
| 48 | |
| 49 response_ = URLResponse::New(); | |
| 50 response_->url = kAboutBlankURL; | |
| 51 response_->status_code = 200; | |
| 52 response_->mime_type = "text/html"; | |
| 53 PostToRunCallback(true); | |
| 54 } | |
| 55 | |
| 56 void AboutFetcher::PostToRunCallback(bool success) { | |
| 57 // Also pass |this| on failure, so that we won't destroy the object while the | |
| 58 // constructor is still on the call stack. | |
| 59 base::MessageLoop::current()->PostTask( | |
| 60 FROM_HERE, | |
| 61 base::Bind(RunFetcherCallback, loader_callback_, | |
| 62 base::Passed(make_scoped_ptr<Fetcher>(this)), success)); | |
| 63 } | |
| 64 | |
| 65 const GURL& AboutFetcher::GetURL() const { | |
| 66 return url_; | |
| 67 } | |
| 68 | |
| 69 GURL AboutFetcher::GetRedirectURL() const { | |
| 70 return GURL::EmptyGURL(); | |
| 71 } | |
| 72 | |
| 73 GURL AboutFetcher::GetRedirectReferer() const { | |
| 74 return GURL::EmptyGURL(); | |
| 75 } | |
| 76 | |
| 77 URLResponsePtr AboutFetcher::AsURLResponse(base::TaskRunner* task_runner, | |
| 78 uint32_t skip) { | |
| 79 DCHECK(response_); | |
| 80 | |
| 81 // Ignore |skip| because the only URL handled currently is "about:blank" which | |
| 82 // doesn't have a body. | |
| 83 DCHECK(!response_->body.is_valid()); | |
| 84 | |
| 85 return response_.Pass(); | |
| 86 } | |
| 87 | |
| 88 void AboutFetcher::AsPath( | |
| 89 base::TaskRunner* task_runner, | |
| 90 base::Callback<void(const base::FilePath&, bool)> callback) { | |
| 91 NOTIMPLEMENTED(); | |
| 92 base::MessageLoop::current()->PostTask( | |
| 93 FROM_HERE, base::Bind(callback, base::FilePath(), false)); | |
| 94 } | |
| 95 | |
| 96 std::string AboutFetcher::MimeType() { | |
| 97 DCHECK(response_); | |
| 98 return response_->mime_type; | |
| 99 } | |
| 100 | |
| 101 bool AboutFetcher::HasMojoMagic() { | |
| 102 return false; | |
| 103 } | |
| 104 | |
| 105 bool AboutFetcher::PeekFirstLine(std::string* line) { | |
| 106 // The only URL handled currently is "about:blank" which doesn't have a body. | |
| 107 return false; | |
| 108 } | |
| 109 | |
| 110 } // namespace fetcher | |
| 111 } // namespace mojo | |
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Chromium Code Reviews
Issue 1338283003:
Revert of Move fetching logic out of ApplicationManager, eliminate url mappings. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master