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// Copyright (c) 2011 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 "content/browser/download/mhtml_generation_manager.h"
#include "base/platform_file.h"
#include "content/browser/renderer_host/render_process_host.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/common/content_notification_types.h"
#include "content/common/notification_service.h"
#include "content/common/page_transition_types.h"
#include "content/common/view_messages.h"
MHTMLGenerationManager::Job::Job()
: browser_file(base::kInvalidPlatformFileValue),
renderer_file(IPC::InvalidPlatformFileForTransit()),
process_id(-1),
routing_id(-1) {
}
MHTMLGenerationManager::MHTMLGenerationManager() {
}
MHTMLGenerationManager::~MHTMLGenerationManager() {
}
void MHTMLGenerationManager::GenerateMHTML(TabContents* tab_contents,
const FilePath& file) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
static int id_counter = 0;
int job_id = id_counter++;
Job job;
job.file_path = file;
job.process_id = tab_contents->GetRenderProcessHost()->id();
job.routing_id = tab_contents->render_view_host()->routing_id();
id_to_job_[job_id] = job;
base::ProcessHandle renderer_process =
tab_contents->GetRenderProcessHost()->GetHandle();
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
NewRunnableMethod(this, &MHTMLGenerationManager::CreateFile,
job_id, file, renderer_process));
}
void MHTMLGenerationManager::MHTMLGenerated(int job_id, int64 mhtml_data_size) {
JobFinished(job_id, mhtml_data_size);
}
void MHTMLGenerationManager::CreateFile(int job_id, const FilePath& file_path,
base::ProcessHandle renderer_process) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
base::PlatformFile browser_file = base::CreatePlatformFile(file_path,
base::PLATFORM_FILE_CREATE_ALWAYS | base::PLATFORM_FILE_WRITE,
NULL, NULL);
if (browser_file == base::kInvalidPlatformFileValue) {
LOG(ERROR) << "Failed to create file to save MHTML at: " <<
file_path.value();
}
IPC::PlatformFileForTransit renderer_file =
IPC::GetFileHandleForProcess(browser_file, renderer_process, false);
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
NewRunnableMethod(this, &MHTMLGenerationManager::FileCreated,
job_id, browser_file, renderer_file));
}
void MHTMLGenerationManager::FileCreated(int job_id,
base::PlatformFile browser_file,
IPC::PlatformFileForTransit renderer_file) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (browser_file == base::kInvalidPlatformFileValue) {
LOG(ERROR) << "Failed to create file";
JobFinished(job_id, -1);
return;
}
IDToJobMap::iterator iter = id_to_job_.find(job_id);
if (iter == id_to_job_.end()) {
NOTREACHED();
return;
}
Job& job = iter->second;
job.browser_file = browser_file;
job.renderer_file = renderer_file;
RenderViewHost* rvh = RenderViewHost::FromID(job.process_id, job.routing_id);
if (!rvh) {
// The tab went away.
JobFinished(job_id, -1);
return;
}
rvh->Send(new ViewMsg_SavePageAsMHTML(rvh->routing_id(), job_id,
renderer_file));
}
void MHTMLGenerationManager::JobFinished(int job_id, int64 file_size) {
IDToJobMap::iterator iter = id_to_job_.find(job_id);
if (iter == id_to_job_.end()) {
NOTREACHED();
return;
}
Job& job = iter->second;
RenderViewHost* rvh = RenderViewHost::FromID(job.process_id, job.routing_id);
if (rvh) {
NotificationDetails details;
details.file_path = job.file_path;
details.file_size = file_size;
NotificationService::current()->Notify(
content::NOTIFICATION_MHTML_GENERATED,
Source<RenderViewHost>(rvh),
Details<NotificationDetails>(&details));
}
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
NewRunnableMethod(this, &MHTMLGenerationManager::CloseFile,
job.browser_file));
id_to_job_.erase(job_id);
}
void MHTMLGenerationManager::CloseFile(base::PlatformFile file) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
base::ClosePlatformFile(file);
}
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