[Touch Bar Web API] Object representing Touch Bar Menu to send between Web and UI...

[Touch Bar Web API] Object representing Touch Bar Menu to send between Web and UI Processes
https://bugs.webkit.org/show_bug.cgi?id=179714

Patch by Aishwarya Nirmal <anirmal@apple.com> on 2017-12-01
Reviewed by Wenson Hsieh.

Source/WebCore:

These changes allow the HTMLMenuElement and HTMLMenuItemElement to parse attributes relating
to the touch bar and convey changes to the elements that will eventually be propogated to the
UI process.

No new tests at this point because the changes to HTMLMenuElement and HTMLMenuItemElement are
new properties, which might not be worth testing, and overriden methods for insertedIntoAncestor
and removedFromAncestor, which are involved in sending a message to a UI process but might be
difficult to test at this point since the UI process only receives (and does not yet process)
the message.

* html/HTMLMenuElement.cpp:
(WebCore::HTMLMenuElement::insertedIntoAncestor):
(WebCore::HTMLMenuElement::removedFromAncestor):
(WebCore::HTMLMenuElement::parseAttribute):
* html/HTMLMenuElement.h:
* html/HTMLMenuItemElement.cpp:
(WebCore::HTMLMenuItemElement::insertedIntoAncestor):
(WebCore::HTMLMenuItemElement::removedFromAncestor):
* html/HTMLMenuItemElement.h:
* page/ChromeClient.h:

Source/WebKit:

These changes define the TouchBarMenuData and TouchBarMenuItemData objects which draw information
from touch bar HTMLMenuElement and HTMLMenuItemElement. These objects represent the contents of
the page-customized touch bar. Changes to the html elements representing the touch bar are sent
to the UI process.

* Shared/TouchBarMenuData.cpp: Copied from Source/WebCore/html/HTMLMenuItemElement.cpp.
(WebKit::TouchBarMenuData::TouchBarMenuData):
(WebKit::TouchBarMenuData::addMenuItem):
(WebKit::TouchBarMenuData::removeMenuItem):
(WebKit::TouchBarMenuData::encode const):
(WebKit::TouchBarMenuData::decode):
* Shared/TouchBarMenuData.h: Copied from Source/WebCore/html/HTMLMenuItemElement.h.
(WebKit::TouchBarMenuData::items):
(WebKit::TouchBarMenuData::isPageCustomized):
(WebKit::TouchBarMenuData::setIsPageCustomized):
* Shared/TouchBarMenuItemData.cpp: Added.
(WebKit::TouchBarMenuItemData::getItemType):
(WebKit::TouchBarMenuItemData::TouchBarMenuItemData):
(WebKit::TouchBarMenuItemData::encode const):
(WebKit::TouchBarMenuItemData::decode):
* Shared/TouchBarMenuItemData.h: Added.
(WebKit::operator<):
(WebKit::operator>):
(WebKit::operator<=):
(WebKit::operator>=):
(WebKit::operator==):
(WebKit::operator!=):
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::touchBarMenuDataChanged):
(WebKit::WebPageProxy::touchBarMenuItemDataAdded):
(WebKit::WebPageProxy::touchBarMenuItemDataRemoved):
* UIProcess/WebPageProxy.h:
(WebKit::WebPageProxy::touchBarMenuData const):
* UIProcess/WebPageProxy.messages.in:
* WebKit.xcodeproj/project.pbxproj:
* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::didInsertMenuElement):
(WebKit::WebChromeClient::didRemoveMenuElement):
(WebKit::WebChromeClient::didInsertMenuItemElement):
(WebKit::WebChromeClient::didRemoveMenuItemElement):
* WebProcess/WebCoreSupport/WebChromeClient.h:
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::didInsertMenuElement):
(WebKit::WebPage::didRemoveMenuElement):
(WebKit::WebPage::didInsertMenuItemElement):
(WebKit::WebPage::didRemoveMenuItemElement):
(WebKit::WebPage::sendTouchBarMenuDataRemovedUpdate):
(WebKit::WebPage::sendTouchBarMenuDataAddedUpdate):
(WebKit::WebPage::sendTouchBarMenuItemDataAddedUpdate):
(WebKit::WebPage::sendTouchBarMenuItemDataRemovedUpdate):
* WebProcess/WebPage/WebPage.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@225438 268f45cc-cd09-0410-ab3c-d52691b4dbfc