From 833f7622731190d21d660b3d0509752e0b17dc1f Mon Sep 17 00:00:00 2001
From: Marshall Greenblatt <magreenblatt@gmail.com>
Date: Mon, 12 Jan 2015 19:47:40 +0000
Subject: [PATCH] Add the ability to Pause/Resume downloads via new
 CefDownloadItemCallback methods (issue #1425).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1966 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
---
 include/capi/cef_download_handler_capi.h      | 10 ++++++
 include/cef_download_handler.h                | 12 +++++++
 libcef/browser/download_manager_delegate.cc   | 31 +++++++++++++++++++
 .../cpptoc/download_item_callback_cpptoc.cc   | 26 ++++++++++++++++
 .../ctocpp/download_item_callback_ctocpp.cc   | 20 ++++++++++++
 .../ctocpp/download_item_callback_ctocpp.h    |  2 ++
 6 files changed, 101 insertions(+)

diff --git a/include/capi/cef_download_handler_capi.h b/include/capi/cef_download_handler_capi.h
index 7793db96d..6acf4fafa 100644
--- a/include/capi/cef_download_handler_capi.h
+++ b/include/capi/cef_download_handler_capi.h
@@ -80,6 +80,16 @@ typedef struct _cef_download_item_callback_t {
   // Call to cancel the download.
   ///
   void (CEF_CALLBACK *cancel)(struct _cef_download_item_callback_t* self);
+
+  ///
+  // Call to pause the download.
+  ///
+  void (CEF_CALLBACK *pause)(struct _cef_download_item_callback_t* self);
+
+  ///
+  // Call to resume the download.
+  ///
+  void (CEF_CALLBACK *resume)(struct _cef_download_item_callback_t* self);
 } cef_download_item_callback_t;
 
 
diff --git a/include/cef_download_handler.h b/include/cef_download_handler.h
index f7c26b3cd..4f58af485 100644
--- a/include/cef_download_handler.h
+++ b/include/cef_download_handler.h
@@ -71,6 +71,18 @@ class CefDownloadItemCallback : public virtual CefBase {
   ///
   /*--cef()--*/
   virtual void Cancel() =0;
+
+  ///
+  // Call to pause the download.
+  ///
+  /*--cef()--*/
+  virtual void Pause() =0;
+
+  ///
+  // Call to resume the download.
+  ///
+  /*--cef()--*/
+  virtual void Resume() =0;
 };
 
 
diff --git a/libcef/browser/download_manager_delegate.cc b/libcef/browser/download_manager_delegate.cc
index 7ef38acf8..753b919d9 100644
--- a/libcef/browser/download_manager_delegate.cc
+++ b/libcef/browser/download_manager_delegate.cc
@@ -208,6 +208,15 @@ class CefDownloadItemCallbackImpl : public CefDownloadItemCallback {
         base::Bind(&CefDownloadItemCallbackImpl::DoCancel, this));
   }
 
+  void Pause() override {
+     CEF_POST_TASK(CEF_UIT,
+        base::Bind(&CefDownloadItemCallbackImpl::DoPause, this));
+  }
+
+  void Resume() override {
+     CEF_POST_TASK(CEF_UIT,
+        base::Bind(&CefDownloadItemCallbackImpl::DoResume, this));
+  }
  private:
   void DoCancel() {
     if (download_id_ <= 0)
@@ -222,6 +231,28 @@ class CefDownloadItemCallbackImpl : public CefDownloadItemCallback {
     download_id_ = 0;
   }
 
+  void DoPause() {
+    if (download_id_ <= 0)
+      return;
+
+    if (manager_) {
+      DownloadItem* item = manager_->GetDownload(download_id_);
+      if (item && item->GetState() == content::DownloadItem::IN_PROGRESS)
+        item->Pause();
+    }
+  }
+
+  void DoResume() {
+    if (download_id_ <= 0)
+      return;
+
+    if (manager_) {
+      DownloadItem* item = manager_->GetDownload(download_id_);
+      if (item && item->CanResume())
+        item->Resume();
+    }
+  }
+
   base::WeakPtr<DownloadManager> manager_;
   uint32 download_id_;
 
diff --git a/libcef_dll/cpptoc/download_item_callback_cpptoc.cc b/libcef_dll/cpptoc/download_item_callback_cpptoc.cc
index b4e193514..b62d476a5 100644
--- a/libcef_dll/cpptoc/download_item_callback_cpptoc.cc
+++ b/libcef_dll/cpptoc/download_item_callback_cpptoc.cc
@@ -27,6 +27,30 @@ void CEF_CALLBACK download_item_callback_cancel(
   CefDownloadItemCallbackCppToC::Get(self)->Cancel();
 }
 
+void CEF_CALLBACK download_item_callback_pause(
+    struct _cef_download_item_callback_t* self) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+
+  // Execute
+  CefDownloadItemCallbackCppToC::Get(self)->Pause();
+}
+
+void CEF_CALLBACK download_item_callback_resume(
+    struct _cef_download_item_callback_t* self) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+
+  // Execute
+  CefDownloadItemCallbackCppToC::Get(self)->Resume();
+}
+
 
 // CONSTRUCTOR - Do not edit by hand.
 
@@ -35,6 +59,8 @@ CefDownloadItemCallbackCppToC::CefDownloadItemCallbackCppToC(
     : CefCppToC<CefDownloadItemCallbackCppToC, CefDownloadItemCallback,
         cef_download_item_callback_t>(cls) {
   struct_.struct_.cancel = download_item_callback_cancel;
+  struct_.struct_.pause = download_item_callback_pause;
+  struct_.struct_.resume = download_item_callback_resume;
 }
 
 #ifndef NDEBUG
diff --git a/libcef_dll/ctocpp/download_item_callback_ctocpp.cc b/libcef_dll/ctocpp/download_item_callback_ctocpp.cc
index 8197173d0..e219bbee1 100644
--- a/libcef_dll/ctocpp/download_item_callback_ctocpp.cc
+++ b/libcef_dll/ctocpp/download_item_callback_ctocpp.cc
@@ -25,6 +25,26 @@ void CefDownloadItemCallbackCToCpp::Cancel() {
   struct_->cancel(struct_);
 }
 
+void CefDownloadItemCallbackCToCpp::Pause() {
+  if (CEF_MEMBER_MISSING(struct_, pause))
+    return;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  struct_->pause(struct_);
+}
+
+void CefDownloadItemCallbackCToCpp::Resume() {
+  if (CEF_MEMBER_MISSING(struct_, resume))
+    return;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  struct_->resume(struct_);
+}
+
 
 #ifndef NDEBUG
 template<> base::AtomicRefCount CefCToCpp<CefDownloadItemCallbackCToCpp,
diff --git a/libcef_dll/ctocpp/download_item_callback_ctocpp.h b/libcef_dll/ctocpp/download_item_callback_ctocpp.h
index ed51fd667..c59ded45d 100644
--- a/libcef_dll/ctocpp/download_item_callback_ctocpp.h
+++ b/libcef_dll/ctocpp/download_item_callback_ctocpp.h
@@ -34,6 +34,8 @@ class CefDownloadItemCallbackCToCpp
 
   // CefDownloadItemCallback methods
   virtual void Cancel() OVERRIDE;
+  virtual void Pause() OVERRIDE;
+  virtual void Resume() OVERRIDE;
 };
 
 #endif  // USING_CEF_SHARED