tree db942d8a4964ce0e3692f370f77f89c852495827
parent 422f532713c03a73dbd6416acb79b3b4f3a9d585
author wenson_hsieh@apple.com <wenson_hsieh@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1570670834 +0000
committer wenson_hsieh@apple.com <wenson_hsieh@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1570670834 +0000

[Clipboard API] Refactor Pasteboard item reading functions to work on both iOS and macOS
https://bugs.webkit.org/show_bug.cgi?id=202647

Reviewed by Tim Horton.

Source/WebCore:

Moves some pasteboard helper functions out of iOS-specific code, and into platform-agnostic code. See below for
more details. There is no change in behavior, as nothing exercises these new pasteboard functions on macOS yet.

* SourcesCocoa.txt:
* WebCore.xcodeproj/project.pbxproj:
* platform/Pasteboard.cpp:
(WebCore::Pasteboard::allPasteboardItemInfo const):
(WebCore::Pasteboard::pasteboardItemInfo const):
(WebCore::Pasteboard::readString):
(WebCore::Pasteboard::readBuffer):
(WebCore::Pasteboard::readURL):

Add some new helpers on Pasteboard to read Strings, data, and URLs from the platform pasteboard. These forward
to the platform strategy which, in WebKit2, are currently implemented using sync IPC, but could be changed in
the future to be fully asynchronous.

* platform/Pasteboard.h:
(WebCore::Pasteboard::name const):

Expose a cross-platform name() getter on Pasteboard. On non-Cocoa platforms, this simply returns the empty
string, but on macOS and iOS, this returns the platform pasteboard name, which is stored in m_pasteboardName.

* platform/PasteboardItemInfo.h:
(WebCore::PasteboardItemInfo::pathForContentType const):
(WebCore::PasteboardItemInfo::contentTypeForHighestFidelityItem const):
(WebCore::PasteboardItemInfo::encode const):
(WebCore::PasteboardItemInfo::decode):

Adds a couple of new members to PasteboardItemInfo (which represents metadata about a given item in the platform
pasteboard). These are changeCount (which is self explanatory), and webSafeTypesByFidelity, which is a list of
types in fidelity order which contains the list of pasteboard types that are safe to expose to bindings. These
may include types such as "text/plain", "text/html", "text/uri-list", and "image/png".

To distinguish this list from the existing contentTypesByFidelity list, I've also renamed contentTypesByFidelity
to platformTypesByFidelity, to make it more obvious that this other list of types are platform-specific, and not
generally safe to expose to the web.

* platform/PasteboardStrategy.h:
* platform/PlatformPasteboard.h:

Move several helpers out into platform-agnostic code.

* platform/cocoa/PasteboardCocoa.mm:
(WebCore::Pasteboard::fileContentState):
* platform/cocoa/PlatformPasteboardCocoa.mm: Added.

Add a new file to contain the implementation of PlatformPasteboard::allPasteboardItemInfo, which is the same
across Cocoa platforms.

(WebCore::PlatformPasteboard::allPasteboardItemInfo):
* platform/ios/PasteboardIOS.mm:
(WebCore::Pasteboard::readRespectingUTIFidelities):
* platform/ios/PlatformPasteboardIOS.mm:
(WebCore::PlatformPasteboard::informationForItemAtIndex):
(WebCore::PlatformPasteboard::readBuffer const):
(WebCore::PlatformPasteboard::readString const):
(WebCore::PlatformPasteboard::readURL const):

Additionally refactor all methods on PlatformPasteboard that take pasteboard item indices as signed integers
(`int`) to receive `size_t` values instead.

(WebCore::PlatformPasteboard::allPasteboardItemInfo): Deleted.
* platform/libwpe/PasteboardLibWPE.cpp:
(WebCore::Pasteboard::readString):
(WebCore::Pasteboard::read):
* platform/libwpe/PlatformPasteboardLibWPE.cpp:
(WebCore::PlatformPasteboard::readString const):

Add an implementation stub for WPE.

* platform/mac/PlatformPasteboardMac.mm:
(WebCore::modernPasteboardTypeForWebSafeMIMEType):
(WebCore::webSafeMIMETypeForModernPasteboardType):

Add helpers to convert between modern NSPasteboardTypes and web-safe types. While some logic exists today on
macOS to convert between legacy pasteboard types and web-safe types, conversion between the modern pasteboard
types and web-safe types are needed since NSPasteboardItem's types only support NSPasteboardTypes and
dynamically declared types that match the format of a universal type identfier (for instance, "com.foo.bar").

(WebCore::PlatformPasteboard::readBuffer const):
(WebCore::PlatformPasteboard::readString const):
(WebCore::PlatformPasteboard::readURL const):
(WebCore::PlatformPasteboard::count const):
(WebCore::PlatformPasteboard::informationForItemAtIndex):

Implement all of these helpers by looking up the NSPasteboardItem at the given item index and querying it for
data for non-legacy pasteboard types.

(WebCore::PlatformPasteboard::itemAtIndex const):

Source/WebKit:

Refactor iOS-specific pasteboard functions to be platform-agnostic. See WebCore ChangeLog for more details.

* UIProcess/Cocoa/WebPasteboardProxyCocoa.mm:
(WebKit::WebPasteboardProxy::allPasteboardItemInfo):
(WebKit::WebPasteboardProxy::informationForItemAtIndex):
(WebKit::WebPasteboardProxy::getPasteboardItemsCount):
(WebKit::WebPasteboardProxy::readStringFromPasteboard):
(WebKit::WebPasteboardProxy::readURLFromPasteboard):
(WebKit::WebPasteboardProxy::readBufferFromPasteboard):
(WebKit::WebPasteboardProxy::writeURLToPasteboard):
(WebKit::WebPasteboardProxy::writeWebContentToPasteboard):
(WebKit::WebPasteboardProxy::writeImageToPasteboard):
(WebKit::WebPasteboardProxy::writeStringToPasteboard):
* UIProcess/WebPasteboardProxy.cpp:
(WebKit::WebPasteboardProxy::allPasteboardItemInfo):
(WebKit::WebPasteboardProxy::informationForItemAtIndex):
(WebKit::WebPasteboardProxy::getPasteboardItemsCount):
(WebKit::WebPasteboardProxy::readStringFromPasteboard):
(WebKit::WebPasteboardProxy::readURLFromPasteboard):
(WebKit::WebPasteboardProxy::readBufferFromPasteboard):
* UIProcess/WebPasteboardProxy.h:
* UIProcess/WebPasteboardProxy.messages.in:
* UIProcess/wpe/WebPasteboardProxyWPE.cpp:
* WebProcess/WebCoreSupport/WebPlatformStrategies.cpp:
(WebKit::WebPlatformStrategies::informationForItemAtIndex):
(WebKit::WebPlatformStrategies::readBufferFromPasteboard):
(WebKit::WebPlatformStrategies::readURLFromPasteboard):
(WebKit::WebPlatformStrategies::readStringFromPasteboard):
(WebKit::WebPlatformStrategies::writeToPasteboard):
(WebKit::WebPlatformStrategies::updateSupportedTypeIdentifiers):
* WebProcess/WebCoreSupport/WebPlatformStrategies.h:

Source/WebKitLegacy/mac:

Refactor iOS-specific pasteboard functions to be platform-agnostic. See WebCore ChangeLog for more details.

* WebCoreSupport/WebPlatformStrategies.h:
* WebCoreSupport/WebPlatformStrategies.mm:
(WebPlatformStrategies::informationForItemAtIndex):
(WebPlatformStrategies::allPasteboardItemInfo):
(WebPlatformStrategies::getPasteboardItemsCount):
(WebPlatformStrategies::readBufferFromPasteboard):
(WebPlatformStrategies::readURLFromPasteboard):
(WebPlatformStrategies::readStringFromPasteboard):
(WebPlatformStrategies::writeToPasteboard):
(WebPlatformStrategies::updateSupportedTypeIdentifiers):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@250950 268f45cc-cd09-0410-ab3c-d52691b4dbfc