Source/WebCore: Refactor Mac platform implementation of the Pasteboard class to use Platform Strategies.
https://bugs.webkit.org/show_bug.cgi?id=78282

This patch removes any accesss to the NSPasteboard object from the Pasteboard class which
now makes use of a new pasteboardStrategy object that is implemented both in WebKit and
WebKit2. The actual access to NSPasteboard is now performed inside the PlatformPasteboard
class. Currently both WebKit and WebKit2 use the same implementation of the PasteboardStrategy
interface but this one more step in the direction of removing access to NSPasteboard from
the WebProcess.
As part of the refactoring the I've reduced to a minimum the use of OBJ-C classes.

Reviewed by Anders Carlsson.

No new tests. No change in behavior, just code refactoring.

* WebCore.exp.in: Added exported class PlatformPasteboard.
* WebCore.xcodeproj/project.pbxproj: Added new files to the build.
* editing/mac/EditorMac.mm:
(WebCore::Editor::writeSelectionToPasteboard): New method signature that doesn't use OBJ-C types.
* platform/Pasteboard.h:

* platform/PasteboardStrategy.h: Added PasteboardStrategy abstract class.
* platform/PlatformPasteboard.h: Added. This class implements access to NSPasteboard.
* platform/PlatformStrategies.h:
(WebCore::PlatformStrategies::pasteboardStrategy): Added.
* platform/mac/DragDataMac.mm:
(WebCore::DragData::canSmartReplace):
(WebCore::insertablePasteboardTypes): 
(WebCore::DragData::asURL):
* platform/mac/PasteboardMac.mm:
(WebCore::selectionPasteboardTypes): Changed to use Vector<String> instead of NSArray.
(WebCore::writableTypesForURL): Ditto.
(WebCore::createWritableTypesForImage): Ditto.
(WebCore::writableTypesForImage): Ditto.
(WebCore::Pasteboard::Pasteboard): Removed access to NSPasteboard.
(WebCore::Pasteboard::clear): Modified to use platformStrategies()->pasteboardStrategy().
(WebCore::Pasteboard::writeSelectionForTypes): Ditto.
(WebCore::Pasteboard::writePlainText): Ditto.
(WebCore::Pasteboard::writeSelection): Ditto.
(WebCore::writeURLForTypes): Ditto.
(WebCore::Pasteboard::writeURL): Ditto.
(WebCore::writeFileWrapperAsRTFDAttachment): Ditto.
(WebCore::Pasteboard::writeImage): Ditto.
(WebCore::Pasteboard::writeClipboard): Ditto.
(WebCore::Pasteboard::canSmartReplace): Ditto.
(WebCore::Pasteboard::plainText): Ditto.
(WebCore::documentFragmentWithRTF): Ditto.
(WebCore::Pasteboard::documentFragment): Ditto.
* platform/mac/PlatformPasteboardMac.mm: Added.
(WebCore::PlatformPasteboard::PlatformPasteboard):
(WebCore::PlatformPasteboard::getTypes):
(WebCore::PlatformPasteboard::bufferForType):
(WebCore::PlatformPasteboard::getPathnamesForType):
(WebCore::PlatformPasteboard::stringForType):
(WebCore::PlatformPasteboard::copy):
(WebCore::PlatformPasteboard::setTypes):
(WebCore::PlatformPasteboard::setBufferForType):
(WebCore::PlatformPasteboard::setPathnamesForType):
(WebCore::PlatformPasteboard::setStringForType):

Source/WebKit/mac:  Refactor Mac platform implementation of the Pasteboard class to use Platform Strategies.
 https://bugs.webkit.org/show_bug.cgi?id=78282
 
 This patch removes any accesss to the NSPasteboard object from the Pasteboard class which
 now makes use of a new pasteboardStrategy object that is implemented both in WebKit and
 WebKit2. The actual access to NSPasteboard is now performed inside the PlatformPasteboard
 class. Currently both WebKit and WebKit2 use the same implementation of the PasteboardStrategy
 interface but this one more step in the direction of removing access to NSPasteboard from
 the WebProcess.
 As part of the refactoring the I've reduced to a minimum the use of OBJ-C classes.
         
 Reviewed by Anders Carlsson.
 
 * WebCoreSupport/WebPlatformStrategies.h: Added PasteboardStrategy.
 * WebCoreSupport/WebPlatformStrategies.mm: Added implementation of PasteboardStrategy interface.
 (WebPlatformStrategies::createPasteboardStrategy):
 (WebPlatformStrategies::getTypes):
 (WebPlatformStrategies::bufferForType):
 (WebPlatformStrategies::getPathnamesForType):
 (WebPlatformStrategies::stringForType):
 (WebPlatformStrategies::copy):
 (WebPlatformStrategies::setTypes):
 (WebPlatformStrategies::setBufferForType):
 (WebPlatformStrategies::setPathnamesForType):
 (WebPlatformStrategies::setStringForType):

Source/WebKit/qt: Refactor Mac platform implementation of the Pasteboard class to use Platform Strategies.
https://bugs.webkit.org/show_bug.cgi?id=78282

Build fix. Unreviewed.

* WebCoreSupport/PlatformStrategiesQt.cpp:
(WebPlatformStrategies::createPasteboardStrategy):
* WebCoreSupport/PlatformStrategiesQt.h:
(PlatformStrategiesQt):

Source/WebKit2: Refactor Mac platform implementation of the Pasteboard class to use Platform Strategies.
https://bugs.webkit.org/show_bug.cgi?id=78282

This patch removes any accesss to the NSPasteboard object from the Pasteboard class which
now makes use of a new pasteboardStrategy object that is implemented both in WebKit and
WebKit2. The actual access to NSPasteboard is now performed inside the PlatformPasteboard
class. Currently both WebKit and WebKit2 use the same implementation of the PasteboardStrategy
interface but this one more step in the direction of removing access to NSPasteboard from
the WebProcess.
As part of the refactoring the I've reduced to a minimum the use of OBJ-C classes.

Reviewed by Anders Carlsson.

* WebProcess/WebCoreSupport/WebPlatformStrategies.cpp: Added implementation of PasteboardStrategy
interface.
(WebKit::WebPlatformStrategies::createPasteboardStrategy):
(WebKit::WebPlatformStrategies::getTypes):
(WebKit::WebPlatformStrategies::bufferForType):
(WebKit::WebPlatformStrategies::getPathnamesForType):
(WebKit::WebPlatformStrategies::stringForType):
(WebKit::WebPlatformStrategies::copy):
(WebKit::WebPlatformStrategies::setTypes):
(WebKit::WebPlatformStrategies::setBufferForType):
(WebKit::WebPlatformStrategies::setPathnamesForType):
(WebKit::WebPlatformStrategies::setStringForType):
* WebProcess/WebCoreSupport/WebPlatformStrategies.h: Added PasteboardStrategy.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@107606 268f45cc-cd09-0410-ab3c-d52691b4dbfc