void RedirectScheduler::scheduleLocationChange(const String& url, const String& referrer, bool lockHistory, bool lockBackForwardList, bool wasUserGesture)
{
if (!m_frame->page())
return;
if (url.isEmpty())
return;
lockBackForwardList = lockBackForwardList || mustLockBackForwardList(m_frame);
FrameLoader* loader = m_frame->loader();
// If the URL we're going to navigate to is the same as the current one, except for the
// fragment part, we don't need to schedule the location change.
KURL parsedURL(ParsedURLString, url);
if (parsedURL.hasFragmentIdentifier() && equalIgnoringFragmentIdentifier(loader->url(), parsedURL)) {
loader->changeLocation(loader->completeURL(url), referrer, lockHistory, lockBackForwardList, wasUserGesture);
return;
}
// Handle a location change of a page with no document as a special case.
// This may happen when a frame changes the location of another frame.
bool duringLoad = !loader->committedFirstRealDocumentLoad();
schedule(new ScheduledLocationChange(url, referrer, lockHistory, lockBackForwardList, wasUserGesture, duringLoad));
}
void RedirectScheduler::timerFired(Timer<RedirectScheduler>*)
{
if (!m_frame->page())
return;
if (m_frame->page()->defersLoading())
return;
OwnPtr<ScheduledRedirection> redirection(m_scheduledRedirection.release());
FrameLoader* loader = m_frame->loader();
switch (redirection->type) {
case ScheduledRedirection::redirection:
case ScheduledRedirection::locationChange:
loader->changeLocation(KURL(ParsedURLString, redirection->url), redirection->referrer,
redirection->lockHistory, redirection->lockBackForwardList, redirection->wasUserGesture, redirection->wasRefresh);
return;
case ScheduledRedirection::historyNavigation:
if (redirection->historySteps == 0) {
// Special case for go(0) from a frame -> reload only the frame
loader->urlSelected(loader->url(), "", 0, redirection->lockHistory, redirection->lockBackForwardList, redirection->wasUserGesture, SendReferrer);
return;
}
// go(i!=0) from a frame navigates into the history of the frame only,
// in both IE and NS (but not in Mozilla). We can't easily do that.
m_frame->page()->goBackOrForward(redirection->historySteps);
return;
case ScheduledRedirection::formSubmission:
// The submitForm function will find a target frame before using the redirection timer.
// Now that the timer has fired, we need to repeat the security check which normally is done when
// selecting a target, in case conditions have changed. Other code paths avoid this by targeting
// without leaving a time window. If we fail the check just silently drop the form submission.
if (!redirection->formState->sourceFrame()->loader()->shouldAllowNavigation(m_frame))
return;
loader->loadFrameRequest(redirection->frameRequest, redirection->lockHistory, redirection->lockBackForwardList,
redirection->event, redirection->formState, SendReferrer);
return;
}
ASSERT_NOT_REACHED();
}