Source/WebCore: WebCore part of <rdar://problem/10442663> Paginated display does...

Source/WebCore: WebCore part of <rdar://problem/10442663> Paginated display does not respect page-break-{before,after}
https://bugs.webkit.org/show_bug.cgi?id=77505

Reviewed by Darin Adler.

* page/Page.h:
(WebCore::Page::Pagination::Pagination): Added initializer for the behavesLikeColumns member
variable.
(WebCore::Page::Pagination::operator==): Added comparison of behavesLikeColumns values.
(Pagination): Added behavesLikeColumns member variable. When set to false (the default),
paginated display respects the page-break-{before,after} properties rather than the
column-break-{before,after} ones.
* rendering/ColumnInfo.h:
(WebCore::ColumnInfo::ColumnInfo): Added initializer for the m_paginationUnit member.
(WebCore::ColumnInfo::paginationUnit): Added this getter.
(WebCore::ColumnInfo::setPaginationUnit): Added this setter.
(ColumnInfo): Added m_paginationUnit member. It defaults to Column.
* rendering/LayoutState.h:
(WebCore::LayoutState::isPaginatingColumns): Changed to check the pagination unit.
* rendering/RenderBlock.cpp:
(WebCore::RenderBlock::layoutBlock): Added code to set the pagination unit in the ColumnInfo.
(WebCore::RenderBlock::paginationUnit): Added. The base class implementation returns Column.
* rendering/RenderBlock.h:
* rendering/RenderView.cpp:
(WebCore::RenderView::paginationUnit): Added this override that returns Page, unless
this is the RenderView for the main frame and pagination is set to behave like columns.
* rendering/RenderView.h:

Source/WebKit/mac: WebKit/mac part of <rdar://problem/10442663> Paginated display does not respect page-break-{before,after}
https://bugs.webkit.org/show_bug.cgi?id=77505

Reviewed by Darin Adler.

* WebView/WebView.mm:
(-[WebView _setPaginationBehavesLikeColumns:]): Added this setter.
(-[WebView _paginationBehavesLikeColumns]): Added this getter.
* WebView/WebViewPrivate.h:

Source/WebKit2: WebKit2 part of <rdar://problem/10442663> Paginated display does not respect page-break-{before,after}
https://bugs.webkit.org/show_bug.cgi?id=77505

Reviewed by Darin Adler.

* Shared/WebPageCreationParameters.cpp:
(WebKit::WebPageCreationParameters::encode): Encode paginationBehavesLikeColumns.
(WebKit::WebPageCreationParameters::decode): Decode paginationBehavesLikeColumns.
* Shared/WebPageCreationParameters.h:
(WebPageCreationParameters): Added paginationBehavesLikeColumns boolean.
* UIProcess/API/C/WKPage.cpp:
(WKPageSetPaginationBehavesLikeColumns): Added this setter.
(WKPageGetPaginationBehavesLikeColumns): Added this getter.
* UIProcess/API/C/WKPagePrivate.h:
* UIProcess/API/mac/WKBrowsingContextController.mm:
(-[WKBrowsingContextController setPaginationBehavesLikeColumns:]): Added this Objective-C
wrapper around WKPageSetPaginationBehavesLikeColumns.
(-[WKBrowsingContextController paginationBehavesLikeColumns]): Added this Objective-C wrapper
around WKPageGetPaginationBehavesLikeColumns.
* UIProcess/API/mac/WKBrowsingContextControllerPrivate.h:
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::WebPageProxy): Added call to setPaginationBehavesLikeColumns() with
the value from the creation parameters.
(WebKit::WebPageProxy::setPaginationBehavesLikeColumns): Added this setter.
(WebKit::WebPageProxy::creationParameters): Populate paginationBehavesLikeColumns.
* UIProcess/WebPageProxy.h:
(WebKit::WebPageProxy::paginationBehavesLikeColumns): Added this getter.
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::setPaginationBehavesLikeColumns): Added this setter.
* WebProcess/WebPage/WebPage.h:
* WebProcess/WebPage/WebPage.messages.in: Added SetPaginationBehavesLikeColumns message.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106511 268f45cc-cd09-0410-ab3c-d52691b4dbfc