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Make callback aligns node.js style.

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This commit is contained in:
Haojian Wu 2015-06-10 20:07:14 +08:00
parent 93243ef223
commit ccbe554ec0
2 changed files with 8 additions and 3 deletions
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4
atom/browser/api/atom_api_web_contents.h
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@ -52,7 +52,9 @@ class WebContents : public mate::EventEmitter,
public content::WebContentsObserver, public content::WebContentsObserver,
public content::GpuDataManagerObserver { public content::GpuDataManagerObserver {
public: public:
typedef base::Callback<void(v8::Local<v8::Value>)> PrintToPDFCallback; // For node.js callback function type: function(error, buffer)
typedef base::Callback<void(v8::Local<v8::Value>, v8::Local<v8::Value>)>
PrintToPDFCallback;
// Create from an existing WebContents. // Create from an existing WebContents.
static mate::Handle<WebContents> CreateFrom( static mate::Handle<WebContents> CreateFrom(

7
chromium_src/chrome/browser/printing/print_preview_message_handler.cc
View file

@ -130,9 +130,12 @@ void PrintPreviewMessageHandler::RunPrintToPDFCallback(
v8::Local<v8::Value> buffer = node::Buffer::Use( v8::Local<v8::Value> buffer = node::Buffer::Use(
const_cast<char*>(reinterpret_cast<const char*>(data->front())), const_cast<char*>(reinterpret_cast<const char*>(data->front())),
data->size()); data->size());
print_to_pdf_callback_map_[request_id].Run(buffer); print_to_pdf_callback_map_[request_id].Run(v8::Null(isolate), buffer);
} else { } else {
print_to_pdf_callback_map_[request_id].Run(v8::Null(isolate)); v8::Local<v8::String> error_message = v8::String::NewFromUtf8(isolate,
"Fail to generate PDF");
print_to_pdf_callback_map_[request_id].Run(
v8::Exception::Error(error_message), v8::Null(isolate));
} }
print_to_pdf_callback_map_.erase(request_id); print_to_pdf_callback_map_.erase(request_id);
} }