ABANDONED: OOPIFs: Moving stitching of local paths from renderer to browser process.

content/browser/download/save_item.cc

 // 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 "content/browser/download/save_item.h"
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "content/browser/download/save_file.h"
 #include "content/browser/download/save_file_manager.h"
 #include "content/browser/download/save_package.h"
+#include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 // Constructor for SaveItem when creating each saving job.
 SaveItem::SaveItem(const GURL& url,
-                   const Referrer& referrer,
                    SavePackage* package,
                    SaveFileCreateInfo::SaveFileSource save_source)
-  : save_id_(-1),
-    url_(url),
-    referrer_(referrer),
-    total_bytes_(0),
-    received_bytes_(0),
-    state_(WAIT_START),
-    has_final_name_(false),
-    is_success_(false),
-    save_source_(save_source),
-    package_(package) {
+    : save_id_(-1),
+      url_(url),
+      referrer_(),
+      total_bytes_(0),
+      received_bytes_(0),
+      state_(WAIT_START),
+      has_final_name_(false),
+      is_success_(false),
+      save_source_(save_source),
+      package_(package) {
   DCHECK(package);
 }
 
 SaveItem::~SaveItem() {
 }
 
 // Set start state for save item.
 void SaveItem::Start() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(state_ == WAIT_START);
   state_ = IN_PROGRESS;
 }
 
 // If we've received more data than we were expecting (bad server info?),
 // revert to 'unknown size mode'.
 void SaveItem::UpdateSize(int64 bytes_so_far) {
   received_bytes_ = bytes_so_far;
   if (received_bytes_ >= total_bytes_)
     total_bytes_ = 0;
 }
 
 // Updates from the file thread may have been posted while this saving job
 // was being canceled in the UI thread, so we'll accept them unless we're
 // complete.
 void SaveItem::Update(int64 bytes_so_far) {
-  if (state_ != IN_PROGRESS) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  if (state_ != IN_PROGRESS && state_ != COMPLETING) {
     NOTREACHED();
     return;
   }
   UpdateSize(bytes_so_far);
 }
 
 // Cancel this saving item job. If the job is not in progress, ignore
 // this command. The SavePackage will each in-progress SaveItem's cancel
 // when canceling whole saving page job.
 void SaveItem::Cancel() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
   // If item is in WAIT_START mode, which means no request has been sent.
   // So we need not to cancel it.
   if (state_ != IN_PROGRESS) {
     // Small downloads might be complete before method has a chance to run.
     return;
   }
   state_ = CANCELED;
   is_success_ = false;
   Finish(received_bytes_, false);
   package_->SaveCanceled(this);
 }
 
 // Set finish state for a save item
 void SaveItem::Finish(int64 size, bool is_success) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
   // When this function is called, the SaveItem should be one of following
   // three situations.
   // a) The data of this SaveItem is finished saving. So it should have
   // generated final name.
   // b) Error happened before the start of saving process. So no |save_id_| is
   // generated for this SaveItem and the |is_success_| should be false.
   // c) Error happened in the start of saving process, the SaveItem has a save
   // id, |is_success_| should be false, and the |size| should be 0.
   DCHECK(has_final_name() || (save_id_ == -1 && !is_success_) ||
          (save_id_ != -1 && !is_success_ && !size));
   state_ = COMPLETE;
   is_success_ = is_success;
   UpdateSize(size);
 }
 
 // Calculate the percentage of the save item
 int SaveItem::PercentComplete() const {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
   switch (state_) {
     case COMPLETE:
+    case COMPLETING:
     case CANCELED:
       return 100;
     case WAIT_START:
       return 0;
     case IN_PROGRESS: {
       int percent = 0;
       if (total_bytes_ > 0)
         percent = static_cast<int>(received_bytes_ * 100.0 / total_bytes_);
       return percent;
     }
     default: {
       NOTREACHED();
       return -1;
     }
   }
 }
 
 // Rename the save item with new path.
 void SaveItem::Rename(const base::FilePath& full_path) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(!full_path.empty() && !has_final_name());
   full_path_ = full_path;
   file_name_ = full_path_.BaseName();
   has_final_name_ = true;
 }
 
 void SaveItem::SetSaveId(int32 save_id) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_EQ(-1, save_id_);
   save_id_ = save_id;
 }
 
 void SaveItem::SetTotalBytes(int64 total_bytes) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_EQ(0, total_bytes_);
   total_bytes_ = total_bytes;
 }
 
+void SaveItem::MarkAsCompleting() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(state_ == IN_PROGRESS);
+  state_ = COMPLETING;
+}
+
 }  // namespace content