https://bugs.webkit.org/show_bug.cgi?id=84862

Patch by Yong Li <yoli@rim.com> on 2012-04-25
Reviewed by Antonio Gomes.

1. block UI events when running in nested event loop
2. defer some tasks we still want to perform when it is safe to do,
   with cached data.
3. deferred task can be cancelled by clearing the flag. duplicate tasks
   is not a problem because they share same flag and data.
4. move deferred manual script from FrameLoaderClientBlackBerry to WebPagePrivate
   and make it a deferred task

* Api/WebPage.cpp:
(WebKit):
(BlackBerry::WebKit::WebPagePrivate::WebPagePrivate):
(BlackBerry::WebKit::WebPagePrivate::load):
(BlackBerry::WebKit::WebPagePrivate::stopCurrentLoad):
(BlackBerry::WebKit::WebPagePrivate::willDeferLoading):
(BlackBerry::WebKit::WebPagePrivate::didResumeLoading):
(BlackBerry::WebKit::WebPagePrivate::deferredTasksTimerFired):
(BlackBerry::WebKit::WebPage::assignFocus):
(BlackBerry::WebKit::WebPagePrivate::setPageVisibilityState):
(BlackBerry::WebKit::WebPage::setInputSelection):
(BlackBerry::WebKit::WebPage::popupListClosed):
(BlackBerry::WebKit::WebPage::setDateTimeInput):
(BlackBerry::WebKit::WebPage::setColorInput):
(BlackBerry::WebKit::WebPage::mouseEvent):
(BlackBerry::WebKit::WebPage::touchEvent):
(BlackBerry::WebKit::WebPage::touchPointAsMouseEvent):
(BlackBerry::WebKit::WebPage::touchEventCancel):
(BlackBerry::WebKit::WebPage::touchEventCancelAndClearFocusedNode):
(BlackBerry::WebKit::WebPage::keyEvent):
(BlackBerry::WebKit::WebPage::deleteTextRelativeToCursor):
(BlackBerry::WebKit::WebPage::setComposingText):
(BlackBerry::WebKit::WebPage::commitText):
(BlackBerry::WebKit::WebPage::selectionCancelled):
(BlackBerry::WebKit::WebPage::cutSelectedText):
(BlackBerry::WebKit::WebPage::insertText):
(BlackBerry::WebKit::WebPage::clearCurrentInputField):
(BlackBerry::WebKit::WebPage::cut):
(BlackBerry::WebKit::WebPage::paste):
(BlackBerry::WebKit::WebPage::setSelection):
(BlackBerry::WebKit::WebPage::setCaretPosition):
(BlackBerry::WebKit::WebPage::selectAtPoint):
(BlackBerry::WebKit::WebPage::setFocused):
* Api/WebPage.h:
* Api/WebPage_p.h:
(WebCore):
(WebPagePrivate):
(DeferredTaskBase):
(BlackBerry::WebKit::WebPagePrivate::DeferredTaskBase::perform):
(BlackBerry::WebKit::WebPagePrivate::DeferredTaskBase::DeferredTaskBase):
* WebCoreSupport/FrameLoaderClientBlackBerry.cpp:
(WebCore::FrameLoaderClientBlackBerry::FrameLoaderClientBlackBerry):
(WebCore::FrameLoaderClientBlackBerry::~FrameLoaderClientBlackBerry):
(WebCore::FrameLoaderClientBlackBerry::willDeferLoading):
(WebCore::FrameLoaderClientBlackBerry::didResumeLoading):
* WebCoreSupport/FrameLoaderClientBlackBerry.h:
(FrameLoaderClientBlackBerry):
* WebKitSupport/InputHandler.cpp:
(BlackBerry::WebKit::InputHandler::setPopupListIndexes):
* WebKitSupport/InputHandler.h:
(InputHandler):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@115245 268f45cc-cd09-0410-ab3c-d52691b4dbfc