| // Copyright (c) 2012 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/extensions/api/api_function.h" |
| |
| #include "base/bind.h" |
| #include "chrome/browser/extensions/extension_system.h" |
| #include "chrome/browser/profiles/profile.h" |
| |
| using content::BrowserThread; |
| |
| namespace extensions { |
| |
| ApiFunction::ApiFunction() { |
| } |
| |
| ApiFunction::~ApiFunction() { |
| } |
| |
| // AsyncApiFunction |
| AsyncApiFunction::AsyncApiFunction() |
| : work_thread_id_(BrowserThread::IO) { |
| } |
| |
| AsyncApiFunction::~AsyncApiFunction() { |
| } |
| |
| bool AsyncApiFunction::RunImpl() { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| |
| if (!PrePrepare() || !Prepare()) { |
| return false; |
| } |
| bool rv = BrowserThread::PostTask( |
| work_thread_id_, FROM_HERE, |
| base::Bind(&AsyncApiFunction::WorkOnWorkThread, this)); |
| DCHECK(rv); |
| return true; |
| } |
| |
| bool AsyncApiFunction::PrePrepare() { |
| return true; |
| } |
| |
| void AsyncApiFunction::Work() { |
| } |
| |
| void AsyncApiFunction::AsyncWorkStart() { |
| Work(); |
| AsyncWorkCompleted(); |
| } |
| |
| void AsyncApiFunction::AsyncWorkCompleted() { |
| if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) { |
| bool rv = BrowserThread::PostTask( |
| BrowserThread::UI, FROM_HERE, |
| base::Bind(&AsyncApiFunction::RespondOnUIThread, this)); |
| DCHECK(rv); |
| } else { |
| SendResponse(Respond()); |
| } |
| } |
| |
| void AsyncApiFunction::WorkOnWorkThread() { |
| DCHECK(BrowserThread::CurrentlyOn(work_thread_id_)); |
| DLOG_IF(ERROR, (work_thread_id_ == BrowserThread::UI)) << |
| "You have specified that AsyncApiFunction::Work() should happen on " |
| "the UI thread. This nullifies the point of this class. Either " |
| "specify a different thread or derive from a different class."; |
| AsyncWorkStart(); |
| } |
| |
| void AsyncApiFunction::RespondOnUIThread() { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| SendResponse(Respond()); |
| } |
| |
| } // namespace extensions |