tree ee51a584ed7a16e00492d7567f78845777b7c0e7
parent f9917289f92d89a65bacd2a4b7a4c4e02b10b9ce
author wenson_hsieh@apple.com <wenson_hsieh@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1571149816 +0000
committer wenson_hsieh@apple.com <wenson_hsieh@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1571149816 +0000

[Clipboard API] Implement getType() for ClipboardItems created from bindings
https://bugs.webkit.org/show_bug.cgi?id=202943

Reviewed by Tim Horton.

Source/WebCore:

Adds basic support for ClipboardItem.getType(), in the case where the ClipboardItems are created by the page. To
achieve this, we introduce ClipboardItemDataSource, which represents the data source backing a given clipboard
item. This backing may either consist of a list of types and their corresponding DOMPromises (for ClipboardItems
that come from the page), or may consist of a list of items that will ask the platformr pasteboard for their
data (to be supported in a future patch).

See below for more details.

Test: editing/async-clipboard/clipboard-item-basic.html

* Modules/async-clipboard/Clipboard.h:
* Modules/async-clipboard/ClipboardItem.cpp:
(WebCore::clipboardItemPresentationStyle):
(WebCore::ClipboardItem::ClipboardItem):

Pass in the parent Clipboard object for ClipboardItems that are backed by the platform pasteboard (which are
returned by Clipboard.read()). (Note that this doesn't make any difference until this codepath is actually
exercised when we add support for Clipboard.read()).

(WebCore::ClipboardItem::create):
(WebCore::ClipboardItem::types const):
(WebCore::ClipboardItem::getType):

Plumb types() and getType() to the clipboard item's datasource.

(WebCore::ClipboardItem::navigator):

Make navigator() return the parent Clipboard object's navigator.

* Modules/async-clipboard/ClipboardItem.h:
* Modules/async-clipboard/ClipboardItemBindingsDataSource.cpp: Added.
(WebCore::blobFromString):
(WebCore::ClipboardItemBindingsDataSource::ClipboardItemBindingsDataSource):

Store the given list of types and DOM promises.

(WebCore::ClipboardItemBindingsDataSource::types const):
(WebCore::ClipboardItemBindingsDataSource::getType):

Implement getType() by finding the matching promised type in the item's array of types, and waiting for the
promise to either resolve or reject. If the promise resolves to either a string or blob, we deliver the result
back to the page by resolving the promise returned by getType(). Otherwise, we reject it.

* Modules/async-clipboard/ClipboardItemBindingsDataSource.h:
* Modules/async-clipboard/ClipboardItemDataSource.h:
(WebCore::ClipboardItemDataSource::ClipboardItemDataSource):
* Modules/async-clipboard/ClipboardItemPasteboardDataSource.cpp:

Add a stub implementation of a clipboard item data source that is backed by data in the platform pasteboard. In
a future patch, this will implement getType() by calling out to the platform pasteboard.

(WebCore::ClipboardItemPasteboardDataSource::ClipboardItemPasteboardDataSource):
(WebCore::ClipboardItemPasteboardDataSource::types const):
(WebCore::ClipboardItemPasteboardDataSource::getType):
* Modules/async-clipboard/ClipboardItemPasteboardDataSource.h:
* Modules/mediastream/RTCRtpReceiver.cpp:
* Modules/mediastream/libwebrtc/LibWebRTCCertificateGenerator.cpp:

Unrelated build fixes, due to changes in unified source groupings.

* Sources.txt:
* WebCore.xcodeproj/project.pbxproj:
* platform/network/mac/UTIUtilities.mm:

More build fixes, due to changes in unified source groupings.

LayoutTests:

Add a new layout test to verify that we can create and ask ClipboardItems for data. Exercises the following
corner cases:
- Promise rejection when returning item data.
- Resolving promises to incorrect data types.
- Setting types to custom strings (including emojis and non-ASCII characters).
- Returning values with emojis and non-ASCII characters.
- Resolving promises using both Blobs and DOMStrings.
- Delayed promise rejection/resolution (using setTimeout).

* editing/async-clipboard/clipboard-item-basic-expected.txt: Added.
* editing/async-clipboard/clipboard-item-basic.html: Added.
* editing/async-clipboard/resources/async-clipboard-helpers.js: Added.

Add a resource file with some helper functions for creating blobs, and loading images and text from blobs.

* platform/win/TestExpectations:

Temporarily mark a test as failing; I'll fix this and some other failing tests in a followup. See
<https://webkit.org/b/202940>.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@251134 268f45cc-cd09-0410-ab3c-d52691b4dbfc