MacViews: Implemented Drag & Drop

ui/base/dragdrop/os_exchange_data_provider_mac.mm

Index: ui/base/dragdrop/os_exchange_data_provider_mac.mm
diff --git a/ui/base/dragdrop/os_exchange_data_provider_mac.mm b/ui/base/dragdrop/os_exchange_data_provider_mac.mm
index 5be2c7994894db9f8d33df4df0781fdede8dd5b6..b7f9811ccc9643d1ad31d58e79dce2287214db86 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_mac.mm
+++ b/ui/base/dragdrop/os_exchange_data_provider_mac.mm
@@ -12,6 +12,7 @@
 #include "base/strings/utf_string_conversions.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
 #import "ui/base/clipboard/clipboard_util_mac.h"
+#import "ui/base/dragdrop/cocoa_dnd_util.h"
 #include "url/gurl.h"
 
 namespace ui {
@@ -69,6 +70,14 @@ void OSExchangeDataProviderMac::SetPickledData(
   [pasteboard_->get() setData:ns_data forType:format.ToNSString()];
 }
 
+void OSExchangeDataProviderMac::SetDragImage(const gfx::ImageSkia& image) {
+  drag_image_ = image;
+}
+
+void OSExchangeDataProviderMac::SetNativeEvent(const base::NativeEvent& event) {
+  event_ = event;
+}
+
 bool OSExchangeDataProviderMac::GetString(base::string16* data) const {
   DCHECK(data);
   NSString* item = [pasteboard_->get() stringForType:NSPasteboardTypeString];
@@ -76,7 +85,6 @@ bool OSExchangeDataProviderMac::GetString(base::string16* data) const {
     *data = base::SysNSStringToUTF16(item);
     return true;
   }
-
   // There was no NSString, check for an NSURL.
   GURL url;
   base::string16 title;
@@ -148,6 +156,18 @@ bool OSExchangeDataProviderMac::GetPickledData(
   return true;
 }
 
+const gfx::ImageSkia& OSExchangeDataProviderMac::GetDragImage() const {
+  return drag_image_;
+}
+
+const base::NativeEvent& OSExchangeDataProviderMac::GetNativeEvent() const {
+  return event_;
+}
+
+NSData* OSExchangeDataProviderMac::GetNSDataForType(NSString* type) const {
+  return [pasteboard_->get() dataForType:type];
+}
+
 bool OSExchangeDataProviderMac::HasString() const {
   base::string16 string;
   return GetString(&string);
@@ -169,6 +189,29 @@ bool OSExchangeDataProviderMac::HasCustomFormat(
   return [[pasteboard_->get() types] containsObject:format.ToNSString()];
 }
 
+NSArray* OSExchangeDataProviderMac::GetPasteboardTypes() const {
+  return [pasteboard_->get() types];
+}
+
+OSExchangeData::Provider*
+OSExchangeDataProviderMac::CreateProviderFromPasteboard(
+    NSPasteboard* pasteboard) {
+  OSExchangeDataProviderMac* provider = new OSExchangeDataProviderMac();
+
+  for (NSPasteboardItem* item in [pasteboard pasteboardItems]) {
+    ClipboardUtil::AddDataToPasteboard(provider->pasteboard_->get(), item);
+  }
+
+  return provider;
+}
+
+NSArray* OSExchangeDataProviderMac::SupportedPasteboardTypes() {
+  return @[
+    ui::ClipboardUtil::UTIForWebURLsAndTitles(), NSURLPboardType,
+    NSPasteboardTypeString, NSFilenamesPboardType
+  ];
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // OSExchangeData, public: