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ara-mdk / platform / external / webkit / a2c5f805f838b31fbbeb248aa021e0cf0c758d7b / . / Source / WebKit / chromium / src / FrameLoaderClientImpl.cpp
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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "FrameLoaderClientImpl.h"
#include "BackForwardListChromium.h"
#include "Chrome.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "FormState.h"
#include "FrameLoader.h"
#include "FrameLoadRequest.h"
#include "FrameNetworkingContextImpl.h"
#include "FrameView.h"
#include "HTTPParsers.h"
#include "HistoryItem.h"
#include "HitTestResult.h"
#include "HTMLAppletElement.h"
#include "HTMLFormElement.h" // needed by FormState.h
#include "HTMLNames.h"
#include "MIMETypeRegistry.h"
#include "MouseEvent.h"
#include "Page.h"
#include "PlatformString.h"
#include "PluginData.h"
#include "PluginDataChromium.h"
#include "ProgressTracker.h"
#include "Settings.h"
#include "StringExtras.h"
#include "WebDataSourceImpl.h"
#include "WebDevToolsAgentPrivate.h"
#include "WebFormElement.h"
#include "WebFrameClient.h"
#include "WebFrameImpl.h"
#include "WebKit.h"
#include "WebKitClient.h"
#include "WebMimeRegistry.h"
#include "WebNode.h"
#include "WebPlugin.h"
#include "WebPluginContainerImpl.h"
#include "WebPluginLoadObserver.h"
#include "WebPluginParams.h"
#include "WebSecurityOrigin.h"
#include "WebURL.h"
#include "WebURLError.h"
#include "WebVector.h"
#include "WebViewClient.h"
#include "WebViewImpl.h"
#include "WindowFeatures.h"
#include "WrappedResourceRequest.h"
#include "WrappedResourceResponse.h"
#include <wtf/text/CString.h>
using namespace WebCore;
namespace WebKit {
// Domain for internal error codes.
static const char internalErrorDomain[] = "WebKit";
// An internal error code. Used to note a policy change error resulting from
// dispatchDecidePolicyForMIMEType not passing the PolicyUse option.
enum {
PolicyChangeError = -10000,
};
FrameLoaderClientImpl::FrameLoaderClientImpl(WebFrameImpl* frame)
: m_webFrame(frame)
, m_hasRepresentation(false)
, m_sentInitialResponseToPlugin(false)
, m_nextNavigationPolicy(WebNavigationPolicyIgnore)
{
}
FrameLoaderClientImpl::~FrameLoaderClientImpl()
{
}
void FrameLoaderClientImpl::frameLoaderDestroyed()
{
// When the WebFrame was created, it had an extra reference given to it on
// behalf of the Frame. Since the WebFrame owns us, this extra ref also
// serves to keep us alive until the FrameLoader is done with us. The
// FrameLoader calls this method when it's going away. Therefore, we balance
// out that extra reference, which may cause 'this' to be deleted.
m_webFrame->closing();
m_webFrame->deref();
}
void FrameLoaderClientImpl::dispatchDidClearWindowObjectInWorld(DOMWrapperWorld*)
{
if (m_webFrame->client())
m_webFrame->client()->didClearWindowObject(m_webFrame);
WebViewImpl* webview = m_webFrame->viewImpl();
if (webview->devToolsAgentPrivate())
webview->devToolsAgentPrivate()->didClearWindowObject(m_webFrame);
}
void FrameLoaderClientImpl::documentElementAvailable()
{
if (m_webFrame->client())
m_webFrame->client()->didCreateDocumentElement(m_webFrame);
}
void FrameLoaderClientImpl::didCreateScriptContextForFrame()
{
if (m_webFrame->client())
m_webFrame->client()->didCreateScriptContext(m_webFrame);
}
void FrameLoaderClientImpl::didDestroyScriptContextForFrame()
{
if (m_webFrame->client())
m_webFrame->client()->didDestroyScriptContext(m_webFrame);
}
void FrameLoaderClientImpl::didCreateIsolatedScriptContext()
{
if (m_webFrame->client())
m_webFrame->client()->didCreateIsolatedScriptContext(m_webFrame);
}
bool FrameLoaderClientImpl::allowScriptExtension(const String& extensionName,
int extensionGroup)
{
if (m_webFrame->client())
return m_webFrame->client()->allowScriptExtension(m_webFrame, extensionName, extensionGroup);
return false;
}
void FrameLoaderClientImpl::didPerformFirstNavigation() const
{
}
void FrameLoaderClientImpl::registerForIconNotification(bool)
{
}
void FrameLoaderClientImpl::didChangeScrollOffset()
{
if (m_webFrame->client())
m_webFrame->client()->didChangeScrollOffset(m_webFrame);
}
bool FrameLoaderClientImpl::allowJavaScript(bool enabledPerSettings)
{
if (m_webFrame->client())
return m_webFrame->client()->allowScript(m_webFrame, enabledPerSettings);
return enabledPerSettings;
}
bool FrameLoaderClientImpl::allowPlugins(bool enabledPerSettings)
{
if (m_webFrame->client())
return m_webFrame->client()->allowPlugins(m_webFrame, enabledPerSettings);
return enabledPerSettings;
}
bool FrameLoaderClientImpl::allowImages(bool enabledPerSettings)
{
if (m_webFrame->client())
return m_webFrame->client()->allowImages(m_webFrame, enabledPerSettings);
return enabledPerSettings;
}
void FrameLoaderClientImpl::didNotAllowScript()
{
if (m_webFrame->client())
m_webFrame->client()->didNotAllowScript(m_webFrame);
}
void FrameLoaderClientImpl::didNotAllowPlugins()
{
if (m_webFrame->client())
m_webFrame->client()->didNotAllowPlugins(m_webFrame);
}
bool FrameLoaderClientImpl::hasWebView() const
{
return m_webFrame->viewImpl();
}
bool FrameLoaderClientImpl::hasFrameView() const
{
// The Mac port has this notion of a WebFrameView, which seems to be
// some wrapper around an NSView. Since our equivalent is HWND, I guess
// we have a "frameview" whenever we have the toplevel HWND.
return m_webFrame->viewImpl();
}
void FrameLoaderClientImpl::makeDocumentView()
{
m_webFrame->createFrameView();
}
void FrameLoaderClientImpl::makeRepresentation(DocumentLoader*)
{
m_hasRepresentation = true;
}
void FrameLoaderClientImpl::forceLayout()
{
// FIXME
}
void FrameLoaderClientImpl::forceLayoutForNonHTML()
{
// FIXME
}
void FrameLoaderClientImpl::setCopiesOnScroll()
{
// FIXME
}
void FrameLoaderClientImpl::detachedFromParent2()
{
// Nothing to do here.
}
void FrameLoaderClientImpl::detachedFromParent3()
{
// Close down the proxy. The purpose of this change is to make the
// call to ScriptController::clearWindowShell a no-op when called from
// Frame::pageDestroyed. Without this change, this call to clearWindowShell
// will cause a crash. If you remove/modify this, just ensure that you can
// go to a page and then navigate to a new page without getting any asserts
// or crashes.
m_webFrame->frame()->script()->proxy()->clearForClose();
// Alert the client that the frame is being detached. This is the last
// chance we have to communicate with the client.
if (m_webFrame->client())
m_webFrame->client()->frameDetached(m_webFrame);
// Stop communicating with the WebFrameClient at this point since we are no
// longer associated with the Page.
m_webFrame->setClient(0);
}
// This function is responsible for associating the |identifier| with a given
// subresource load. The following functions that accept an |identifier| are
// called for each subresource, so they should not be dispatched to the
// WebFrame.
void FrameLoaderClientImpl::assignIdentifierToInitialRequest(
unsigned long identifier, DocumentLoader* loader,
const ResourceRequest& request)
{
if (m_webFrame->client()) {
WrappedResourceRequest webreq(request);
m_webFrame->client()->assignIdentifierToRequest(
m_webFrame, identifier, webreq);
}
}
// If the request being loaded by |loader| is a frame, update the ResourceType.
// A subresource in this context is anything other than a frame --
// this includes images and xmlhttp requests. It is important to note that a
// subresource is NOT limited to stuff loaded through the frame's subresource
// loader. Synchronous xmlhttp requests for example, do not go through the
// subresource loader, but we still label them as TargetIsSubresource.
//
// The important edge cases to consider when modifying this function are
// how synchronous resource loads are treated during load/unload threshold.
static void setTargetTypeFromLoader(ResourceRequest& request, DocumentLoader* loader)
{
if (loader == loader->frameLoader()->provisionalDocumentLoader()) {
ResourceRequest::TargetType type;
if (loader->frameLoader()->isLoadingMainFrame())
type = ResourceRequest::TargetIsMainFrame;
else
type = ResourceRequest::TargetIsSubframe;
request.setTargetType(type);
}
}
void FrameLoaderClientImpl::dispatchWillSendRequest(
DocumentLoader* loader, unsigned long identifier, ResourceRequest& request,
const ResourceResponse& redirectResponse)
{
if (loader) {
// We want to distinguish between a request for a document to be loaded into
// the main frame, a sub-frame, or the sub-objects in that document.
setTargetTypeFromLoader(request, loader);
// Avoid repeating a form submission when navigating back or forward.
if (loader == loader->frameLoader()->provisionalDocumentLoader()
&& request.httpMethod() == "POST"
&& isBackForwardLoadType(loader->frameLoader()->loadType()))
request.setCachePolicy(ReturnCacheDataDontLoad);
}
// FrameLoader::loadEmptyDocumentSynchronously() creates an empty document
// with no URL. We don't like that, so we'll rename it to about:blank.
if (request.url().isEmpty())
request.setURL(KURL(ParsedURLString, "about:blank"));
if (request.firstPartyForCookies().isEmpty())
request.setFirstPartyForCookies(KURL(ParsedURLString, "about:blank"));
// Give the WebFrameClient a crack at the request.
if (m_webFrame->client()) {
WrappedResourceRequest webreq(request);
WrappedResourceResponse webresp(redirectResponse);
m_webFrame->client()->willSendRequest(
m_webFrame, identifier, webreq, webresp);
}
}
bool FrameLoaderClientImpl::shouldUseCredentialStorage(
DocumentLoader*, unsigned long identifier)
{
// FIXME
// Intended to pass through to a method on the resource load delegate.
// If implemented, that method controls whether the browser should ask the
// networking layer for a stored default credential for the page (say from
// the Mac OS keychain). If the method returns false, the user should be
// presented with an authentication challenge whether or not the networking
// layer has a credential stored.
// This returns true for backward compatibility: the ability to override the
// system credential store is new. (Actually, not yet fully implemented in
// WebKit, as of this writing.)
return true;
}
void FrameLoaderClientImpl::dispatchDidReceiveAuthenticationChallenge(
DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&)
{
// FIXME
}
void FrameLoaderClientImpl::dispatchDidCancelAuthenticationChallenge(
DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&)
{
// FIXME
}
void FrameLoaderClientImpl::dispatchDidReceiveResponse(DocumentLoader* loader,
unsigned long identifier,
const ResourceResponse& response)
{
if (m_webFrame->client()) {
WrappedResourceResponse webresp(response);
m_webFrame->client()->didReceiveResponse(m_webFrame, identifier, webresp);
}
}
void FrameLoaderClientImpl::dispatchDidReceiveContentLength(
DocumentLoader* loader,
unsigned long identifier,
int dataLength)
{
}
// Called when a particular resource load completes
void FrameLoaderClientImpl::dispatchDidFinishLoading(DocumentLoader* loader,
unsigned long identifier)
{
if (m_webFrame->client())
m_webFrame->client()->didFinishResourceLoad(m_webFrame, identifier);
}
void FrameLoaderClientImpl::dispatchDidFailLoading(DocumentLoader* loader,
unsigned long identifier,
const ResourceError& error)
{
if (m_webFrame->client())
m_webFrame->client()->didFailResourceLoad(m_webFrame, identifier, error);
}
void FrameLoaderClientImpl::dispatchDidFinishDocumentLoad()
{
// A frame may be reused. This call ensures we don't hold on to our password
// listeners and their associated HTMLInputElements.
m_webFrame->clearPasswordListeners();
if (m_webFrame->client())
m_webFrame->client()->didFinishDocumentLoad(m_webFrame);
}
bool FrameLoaderClientImpl::dispatchDidLoadResourceFromMemoryCache(
DocumentLoader* loader,
const ResourceRequest& request,
const ResourceResponse& response,
int length)
{
if (m_webFrame->client()) {
WrappedResourceRequest webreq(request);
WrappedResourceResponse webresp(response);
m_webFrame->client()->didLoadResourceFromMemoryCache(
m_webFrame, webreq, webresp);
}
return false; // Do not suppress remaining notifications
}
void FrameLoaderClientImpl::dispatchDidHandleOnloadEvents()
{
if (m_webFrame->client())
m_webFrame->client()->didHandleOnloadEvents(m_webFrame);
}
// Redirect Tracking
// =================
// We want to keep track of the chain of redirects that occur during page
// loading. There are two types of redirects, server redirects which are HTTP
// response codes, and client redirects which are document.location= and meta
// refreshes.
//
// This outlines the callbacks that we get in different redirect situations,
// and how each call modifies the redirect chain.
//
// Normal page load
// ----------------
// dispatchDidStartProvisionalLoad() -> adds URL to the redirect list
// dispatchDidCommitLoad() -> DISPATCHES & clears list
//
// Server redirect (success)
// -------------------------
// dispatchDidStartProvisionalLoad() -> adds source URL
// dispatchDidReceiveServerRedirectForProvisionalLoad() -> adds dest URL
// dispatchDidCommitLoad() -> DISPATCHES
//
// Client redirect (success)
// -------------------------
// (on page)
// dispatchWillPerformClientRedirect() -> saves expected redirect
// dispatchDidStartProvisionalLoad() -> appends redirect source (since
// it matches the expected redirect)
// and the current page as the dest)
// dispatchDidCancelClientRedirect() -> clears expected redirect
// dispatchDidCommitLoad() -> DISPATCHES
//
// Client redirect (cancelled)
// (e.g meta-refresh trumped by manual doc.location change, or just cancelled
// because a link was clicked that requires the meta refresh to be rescheduled
// (the SOURCE URL may have changed).
// ---------------------------
// dispatchDidCancelClientRedirect() -> clears expected redirect
// dispatchDidStartProvisionalLoad() -> adds only URL to redirect list
// dispatchDidCommitLoad() -> DISPATCHES & clears list
// rescheduled ? dispatchWillPerformClientRedirect() -> saves expected redirect
// : nothing
// Client redirect (failure)
// -------------------------
// (on page)
// dispatchWillPerformClientRedirect() -> saves expected redirect
// dispatchDidStartProvisionalLoad() -> appends redirect source (since
// it matches the expected redirect)
// and the current page as the dest)
// dispatchDidCancelClientRedirect()
// dispatchDidFailProvisionalLoad()
//
// Load 1 -> Server redirect to 2 -> client redirect to 3 -> server redirect to 4
// ------------------------------------------------------------------------------
// dispatchDidStartProvisionalLoad() -> adds source URL 1
// dispatchDidReceiveServerRedirectForProvisionalLoad() -> adds dest URL 2
// dispatchDidCommitLoad() -> DISPATCHES 1+2
// -- begin client redirect and NEW DATA SOURCE
// dispatchWillPerformClientRedirect() -> saves expected redirect
// dispatchDidStartProvisionalLoad() -> appends URL 2 and URL 3
// dispatchDidReceiveServerRedirectForProvisionalLoad() -> appends destination URL 4
// dispatchDidCancelClientRedirect() -> clears expected redirect
// dispatchDidCommitLoad() -> DISPATCHES
//
// Interesting case with multiple location changes involving anchors.
// Load page 1 containing future client-redirect (back to 1, e.g meta refresh) > Click
// on a link back to the same page (i.e an anchor href) >
// client-redirect finally fires (with new source, set to 1#anchor)
// -----------------------------------------------------------------------------
// dispatchWillPerformClientRedirect(non-zero 'interval' param) -> saves expected redirect
// -- click on anchor href
// dispatchDidCancelClientRedirect() -> clears expected redirect
// dispatchDidStartProvisionalLoad() -> adds 1#anchor source
// dispatchDidCommitLoad() -> DISPATCHES 1#anchor
// dispatchWillPerformClientRedirect() -> saves exp. source (1#anchor)
// -- redirect timer fires
// dispatchDidStartProvisionalLoad() -> appends 1#anchor (src) and 1 (dest)
// dispatchDidCancelClientRedirect() -> clears expected redirect
// dispatchDidCommitLoad() -> DISPATCHES 1#anchor + 1
//
void FrameLoaderClientImpl::dispatchDidReceiveServerRedirectForProvisionalLoad()
{
WebDataSourceImpl* ds = m_webFrame->provisionalDataSourceImpl();
if (!ds) {
// Got a server redirect when there is no provisional DS!
ASSERT_NOT_REACHED();
return;
}
// The server redirect may have been blocked.
if (ds->request().isNull())
return;
// A provisional load should have started already, which should have put an
// entry in our redirect chain.
ASSERT(ds->hasRedirectChain());
// The URL of the destination is on the provisional data source. We also need
// to update the redirect chain to account for this addition (we do this
// before the callback so the callback can look at the redirect chain to see
// what happened).
ds->appendRedirect(ds->request().url());
if (m_webFrame->client())
m_webFrame->client()->didReceiveServerRedirectForProvisionalLoad(m_webFrame);
}
// Called on both success and failure of a client redirect.
void FrameLoaderClientImpl::dispatchDidCancelClientRedirect()
{
// No longer expecting a client redirect.
if (m_webFrame->client()) {
m_expectedClientRedirectSrc = KURL();
m_expectedClientRedirectDest = KURL();
m_webFrame->client()->didCancelClientRedirect(m_webFrame);
}
// No need to clear the redirect chain, since that data source has already
// been deleted by the time this function is called.
}
void FrameLoaderClientImpl::dispatchWillPerformClientRedirect(
const KURL& url,
double interval,
double fireDate)
{
// Tells dispatchDidStartProvisionalLoad that if it sees this item it is a
// redirect and the source item should be added as the start of the chain.
m_expectedClientRedirectSrc = m_webFrame->url();
m_expectedClientRedirectDest = url;
// FIXME: bug 1135512. Webkit does not properly notify us of cancelling
// http > file client redirects. Since the FrameLoader's policy is to never
// carry out such a navigation anyway, the best thing we can do for now to
// not get confused is ignore this notification.
if (m_expectedClientRedirectDest.isLocalFile()
&& m_expectedClientRedirectSrc.protocolInHTTPFamily()) {
m_expectedClientRedirectSrc = KURL();
m_expectedClientRedirectDest = KURL();
return;
}
if (m_webFrame->client()) {
m_webFrame->client()->willPerformClientRedirect(
m_webFrame,
m_expectedClientRedirectSrc,
m_expectedClientRedirectDest,
static_cast<unsigned int>(interval),
static_cast<unsigned int>(fireDate));
}
}
void FrameLoaderClientImpl::dispatchDidNavigateWithinPage()
{
// Anchor fragment navigations are not normal loads, so we need to synthesize
// some events for our delegate.
WebViewImpl* webView = m_webFrame->viewImpl();
// Flag of whether frame loader is completed. Generate didStartLoading and
// didStopLoading only when loader is completed so that we don't fire
// them for fragment redirection that happens in window.onload handler.
// See https://bugs.webkit.org/show_bug.cgi?id=31838
bool loaderCompleted =
!webView->page()->mainFrame()->loader()->activeDocumentLoader()->isLoadingInAPISense();
// Generate didStartLoading if loader is completed.
if (webView->client() && loaderCompleted)
webView->client()->didStartLoading();
// We need to classify some hash changes as client redirects.
// FIXME: It seems wrong that the currentItem can sometimes be null.
HistoryItem* currentItem = m_webFrame->frame()->loader()->history()->currentItem();
bool isHashChange = !currentItem || !currentItem->stateObject();
WebDataSourceImpl* ds = m_webFrame->dataSourceImpl();
ASSERT(ds); // Should not be null when navigating to a reference fragment!
if (ds) {
KURL url = ds->request().url();
KURL chainEnd;
if (ds->hasRedirectChain()) {
chainEnd = ds->endOfRedirectChain();
ds->clearRedirectChain();
}
if (isHashChange) {
// Figure out if this location change is because of a JS-initiated
// client redirect (e.g onload/setTimeout document.location.href=).
// FIXME: (b/1085325, b/1046841) We don't get proper redirect
// performed/cancelled notifications across anchor navigations, so the
// other redirect-tracking code in this class (see
// dispatch*ClientRedirect() and dispatchDidStartProvisionalLoad) is
// insufficient to catch and properly flag these transitions. Once a
// proper fix for this bug is identified and applied the following
// block may no longer be required.
bool wasClientRedirect =
(url == m_expectedClientRedirectDest && chainEnd == m_expectedClientRedirectSrc)
|| !m_webFrame->isProcessingUserGesture();
if (wasClientRedirect) {
if (m_webFrame->client())
m_webFrame->client()->didCompleteClientRedirect(m_webFrame, chainEnd);
ds->appendRedirect(chainEnd);
// Make sure we clear the expected redirect since we just effectively
// completed it.
m_expectedClientRedirectSrc = KURL();
m_expectedClientRedirectDest = KURL();
}
}
// Regardless of how we got here, we are navigating to a URL so we need to
// add it to the redirect chain.
ds->appendRedirect(url);
}
bool isNewNavigation;
webView->didCommitLoad(&isNewNavigation);
if (m_webFrame->client())
m_webFrame->client()->didNavigateWithinPage(m_webFrame, isNewNavigation);
// Generate didStopLoading if loader is completed.
if (webView->client() && loaderCompleted)
webView->client()->didStopLoading();
}
void FrameLoaderClientImpl::dispatchDidChangeLocationWithinPage()
{
if (m_webFrame)
m_webFrame->client()->didChangeLocationWithinPage(m_webFrame);
}
void FrameLoaderClientImpl::dispatchDidPushStateWithinPage()
{
dispatchDidNavigateWithinPage();
}
void FrameLoaderClientImpl::dispatchDidReplaceStateWithinPage()
{
dispatchDidNavigateWithinPage();
}
void FrameLoaderClientImpl::dispatchDidPopStateWithinPage()
{
// Ignored since dispatchDidNavigateWithinPage was already called.
}
void FrameLoaderClientImpl::dispatchWillClose()
{
if (m_webFrame->client())
m_webFrame->client()->willClose(m_webFrame);
}
void FrameLoaderClientImpl::dispatchDidReceiveIcon()
{
// The icon database is disabled, so this should never be called.
ASSERT_NOT_REACHED();
}
void FrameLoaderClientImpl::dispatchDidStartProvisionalLoad()
{
// In case a redirect occurs, we need this to be set so that the redirect
// handling code can tell where the redirect came from. Server redirects
// will occur on the provisional load, so we need to keep track of the most
// recent provisional load URL.
// See dispatchDidReceiveServerRedirectForProvisionalLoad.
WebDataSourceImpl* ds = m_webFrame->provisionalDataSourceImpl();
if (!ds) {
ASSERT_NOT_REACHED();
return;
}
KURL url = ds->request().url();
// Since the provisional load just started, we should have not gotten
// any redirects yet.
ASSERT(!ds->hasRedirectChain());
// If this load is what we expected from a client redirect, treat it as a
// redirect from that original page. The expected redirect urls will be
// cleared by DidCancelClientRedirect.
bool completingClientRedirect = false;
if (m_expectedClientRedirectSrc.isValid()) {
// m_expectedClientRedirectDest could be something like
// "javascript:history.go(-1)" thus we need to exclude url starts with
// "javascript:". See bug: 1080873
if (m_expectedClientRedirectDest.protocolIs("javascript")
|| m_expectedClientRedirectDest == url) {
ds->appendRedirect(m_expectedClientRedirectSrc);
completingClientRedirect = true;
} else {
// Any pending redirect is no longer in progress. This can happen
// if the navigation was canceled with PolicyIgnore, or if the
// redirect was scheduled on the wrong frame (e.g., due to a form
// submission targeted to _blank, as in http://webkit.org/b/44079).
m_expectedClientRedirectSrc = KURL();
m_expectedClientRedirectDest = KURL();
}
}
ds->appendRedirect(url);
if (m_webFrame->client()) {
// Whatever information didCompleteClientRedirect contains should only
// be considered relevant until the next provisional load has started.
// So we first tell the client that the load started, and then tell it
// about the client redirect the load is responsible for completing.
m_webFrame->client()->didStartProvisionalLoad(m_webFrame);
if (completingClientRedirect) {
m_webFrame->client()->didCompleteClientRedirect(
m_webFrame, m_expectedClientRedirectSrc);
}
}
}
void FrameLoaderClientImpl::dispatchDidReceiveTitle(const StringWithDirection& title)
{
if (m_webFrame->client())
m_webFrame->client()->didReceiveTitle(m_webFrame, title.string(), title.direction() == LTR ? WebTextDirectionLeftToRight : WebTextDirectionRightToLeft);
}
void FrameLoaderClientImpl::dispatchDidChangeIcons()
{
if (m_webFrame->client())
m_webFrame->client()->didChangeIcons(m_webFrame);
}
void FrameLoaderClientImpl::dispatchDidCommitLoad()
{
WebViewImpl* webview = m_webFrame->viewImpl();
bool isNewNavigation;
webview->didCommitLoad(&isNewNavigation);
if (m_webFrame->client())
m_webFrame->client()->didCommitProvisionalLoad(m_webFrame, isNewNavigation);
}
void FrameLoaderClientImpl::dispatchDidFailProvisionalLoad(
const ResourceError& error)
{
// If a policy change occured, then we do not want to inform the plugin
// delegate. See http://b/907789 for details. FIXME: This means the
// plugin won't receive NPP_URLNotify, which seems like it could result in
// a memory leak in the plugin!!
if (error.domain() == internalErrorDomain
&& error.errorCode() == PolicyChangeError) {
m_webFrame->didFail(cancelledError(error.failingURL()), true);
return;
}
OwnPtr<WebPluginLoadObserver> observer = pluginLoadObserver();
m_webFrame->didFail(error, true);
if (observer)
observer->didFailLoading(error);
}
void FrameLoaderClientImpl::dispatchDidFailLoad(const ResourceError& error)
{
OwnPtr<WebPluginLoadObserver> observer = pluginLoadObserver();
m_webFrame->didFail(error, false);
if (observer)
observer->didFailLoading(error);
// Don't clear the redirect chain, this will happen in the middle of client
// redirects, and we need the context. The chain will be cleared when the
// provisional load succeeds or fails, not the "real" one.
}
void FrameLoaderClientImpl::dispatchDidFinishLoad()
{
OwnPtr<WebPluginLoadObserver> observer = pluginLoadObserver();
if (m_webFrame->client())
m_webFrame->client()->didFinishLoad(m_webFrame);
if (observer)
observer->didFinishLoading();
// Don't clear the redirect chain, this will happen in the middle of client
// redirects, and we need the context. The chain will be cleared when the
// provisional load succeeds or fails, not the "real" one.
}
void FrameLoaderClientImpl::dispatchDidFirstLayout()
{
if (m_webFrame->client())
m_webFrame->client()->didFirstLayout(m_webFrame);
}
void FrameLoaderClientImpl::dispatchDidFirstVisuallyNonEmptyLayout()
{
if (m_webFrame->client())
m_webFrame->client()->didFirstVisuallyNonEmptyLayout(m_webFrame);
}
Frame* FrameLoaderClientImpl::dispatchCreatePage(const NavigationAction& action)
{
struct WindowFeatures features;
Page* newPage = m_webFrame->frame()->page()->chrome()->createWindow(
m_webFrame->frame(), FrameLoadRequest(m_webFrame->frame()->document()->securityOrigin()),
features, action);
// Make sure that we have a valid disposition. This should have been set in
// the preceeding call to dispatchDecidePolicyForNewWindowAction.
ASSERT(m_nextNavigationPolicy != WebNavigationPolicyIgnore);
WebNavigationPolicy policy = m_nextNavigationPolicy;
m_nextNavigationPolicy = WebNavigationPolicyIgnore;
// createWindow can return null (e.g., popup blocker denies the window).
if (!newPage)
return 0;
WebViewImpl::fromPage(newPage)->setInitialNavigationPolicy(policy);
return newPage->mainFrame();
}
void FrameLoaderClientImpl::dispatchShow()
{
WebViewImpl* webView = m_webFrame->viewImpl();
if (webView && webView->client())
webView->client()->show(webView->initialNavigationPolicy());
}
void FrameLoaderClientImpl::dispatchDecidePolicyForResponse(
FramePolicyFunction function,
const ResourceResponse& response,
const ResourceRequest&)
{
PolicyAction action;
int statusCode = response.httpStatusCode();
if (statusCode == 204 || statusCode == 205) {
// The server does not want us to replace the page contents.
action = PolicyIgnore;
} else if (WebCore::contentDispositionType(response.httpHeaderField("Content-Disposition")) == WebCore::ContentDispositionAttachment) {
// The server wants us to download instead of replacing the page contents.
// Downloading is handled by the embedder, but we still get the initial
// response so that we can ignore it and clean up properly.
action = PolicyIgnore;
} else if (!canShowMIMEType(response.mimeType())) {
// Make sure that we can actually handle this type internally.
action = PolicyIgnore;
} else {
// OK, we will render this page.
action = PolicyUse;
}
// NOTE: PolicyChangeError will be generated when action is not PolicyUse.
(m_webFrame->frame()->loader()->policyChecker()->*function)(action);
}
void FrameLoaderClientImpl::dispatchDecidePolicyForNewWindowAction(
FramePolicyFunction function,
const NavigationAction& action,
const ResourceRequest& request,
PassRefPtr<FormState> formState,
const String& frameName)
{
WebNavigationPolicy navigationPolicy;
if (!actionSpecifiesNavigationPolicy(action, &navigationPolicy))
navigationPolicy = WebNavigationPolicyNewForegroundTab;
PolicyAction policyAction;
if (navigationPolicy == WebNavigationPolicyDownload)
policyAction = PolicyDownload;
else {
policyAction = PolicyUse;
// Remember the disposition for when dispatchCreatePage is called. It is
// unfortunate that WebCore does not provide us with any context when
// creating or showing the new window that would allow us to avoid having
// to keep this state.
m_nextNavigationPolicy = navigationPolicy;
}
(m_webFrame->frame()->loader()->policyChecker()->*function)(policyAction);
}
void FrameLoaderClientImpl::dispatchDecidePolicyForNavigationAction(
FramePolicyFunction function,
const NavigationAction& action,
const ResourceRequest& request,
PassRefPtr<FormState> formState) {
PolicyAction policyAction = PolicyIgnore;
// It is valid for this function to be invoked in code paths where the
// the webview is closed.
// The null check here is to fix a crash that seems strange
// (see - https://bugs.webkit.org/show_bug.cgi?id=23554).
if (m_webFrame->client() && !request.url().isNull()) {
WebNavigationPolicy navigationPolicy = WebNavigationPolicyCurrentTab;
actionSpecifiesNavigationPolicy(action, &navigationPolicy);
// Give the delegate a chance to change the navigation policy.
const WebDataSourceImpl* ds = m_webFrame->provisionalDataSourceImpl();
if (ds) {
KURL url = ds->request().url();
ASSERT(!url.protocolIs(backForwardNavigationScheme));
bool isRedirect = ds->hasRedirectChain();
WebNavigationType webnavType =
WebDataSourceImpl::toWebNavigationType(action.type());
RefPtr<Node> node;
for (const Event* event = action.event(); event; event = event->underlyingEvent()) {
if (event->isMouseEvent()) {
const MouseEvent* mouseEvent =
static_cast<const MouseEvent*>(event);
node = m_webFrame->frame()->eventHandler()->hitTestResultAtPoint(
mouseEvent->absoluteLocation(), false).innerNonSharedNode();
break;
}
}
WebNode originatingNode(node);
navigationPolicy = m_webFrame->client()->decidePolicyForNavigation(
m_webFrame, ds->request(), webnavType, originatingNode,
navigationPolicy, isRedirect);
}
if (navigationPolicy == WebNavigationPolicyCurrentTab)
policyAction = PolicyUse;
else if (navigationPolicy == WebNavigationPolicyDownload)
policyAction = PolicyDownload;
else {
if (navigationPolicy != WebNavigationPolicyIgnore) {
WrappedResourceRequest webreq(request);
m_webFrame->client()->loadURLExternally(m_webFrame, webreq, navigationPolicy);
}
policyAction = PolicyIgnore;
}
}
(m_webFrame->frame()->loader()->policyChecker()->*function)(policyAction);
}
void FrameLoaderClientImpl::cancelPolicyCheck()
{
// FIXME
}
void FrameLoaderClientImpl::dispatchUnableToImplementPolicy(const ResourceError& error)
{
m_webFrame->client()->unableToImplementPolicyWithError(m_webFrame, error);
}
void FrameLoaderClientImpl::dispatchWillSendSubmitEvent(HTMLFormElement* form)
{
if (m_webFrame->client())
m_webFrame->client()->willSendSubmitEvent(m_webFrame, WebFormElement(form));
}
void FrameLoaderClientImpl::dispatchWillSubmitForm(FramePolicyFunction function,
PassRefPtr<FormState> formState)
{
if (m_webFrame->client())
m_webFrame->client()->willSubmitForm(m_webFrame, WebFormElement(formState->form()));
(m_webFrame->frame()->loader()->policyChecker()->*function)(PolicyUse);
}
void FrameLoaderClientImpl::dispatchDidLoadMainResource(DocumentLoader*)
{
// FIXME
}
void FrameLoaderClientImpl::revertToProvisionalState(DocumentLoader*)
{
m_hasRepresentation = true;
}
void FrameLoaderClientImpl::setMainDocumentError(DocumentLoader*,
const ResourceError& error)
{
if (m_pluginWidget.get()) {
if (m_sentInitialResponseToPlugin) {
m_pluginWidget->didFailLoading(error);
m_sentInitialResponseToPlugin = false;
}
m_pluginWidget = 0;
}
}
void FrameLoaderClientImpl::postProgressStartedNotification()
{
WebViewImpl* webview = m_webFrame->viewImpl();
if (webview && webview->client())
webview->client()->didStartLoading();
}
void FrameLoaderClientImpl::postProgressEstimateChangedNotification()
{
WebViewImpl* webview = m_webFrame->viewImpl();
if (webview && webview->client()) {
webview->client()->didChangeLoadProgress(
m_webFrame, m_webFrame->frame()->page()->progress()->estimatedProgress());
}
}
void FrameLoaderClientImpl::postProgressFinishedNotification()
{
// FIXME: why might the webview be null? http://b/1234461
WebViewImpl* webview = m_webFrame->viewImpl();
if (webview && webview->client())
webview->client()->didStopLoading();
}
void FrameLoaderClientImpl::setMainFrameDocumentReady(bool ready)
{
// FIXME
}
// Creates a new connection and begins downloading from that (contrast this
// with |download|).
void FrameLoaderClientImpl::startDownload(const ResourceRequest& request)
{
if (m_webFrame->client()) {
WrappedResourceRequest webreq(request);
m_webFrame->client()->loadURLExternally(
m_webFrame, webreq, WebNavigationPolicyDownload);
}
}
void FrameLoaderClientImpl::willChangeTitle(DocumentLoader*)
{
// FIXME
}
void FrameLoaderClientImpl::didChangeTitle(DocumentLoader*)
{
// FIXME
}
// Called whenever data is received.
void FrameLoaderClientImpl::committedLoad(DocumentLoader* loader, const char* data, int length)
{
if (!m_pluginWidget.get()) {
if (m_webFrame->client()) {
bool preventDefault = false;
m_webFrame->client()->didReceiveDocumentData(m_webFrame, data, length, preventDefault);
if (!preventDefault)
m_webFrame->commitDocumentData(data, length);
}
}
// If we are sending data to MediaDocument, we should stop here
// and cancel the request.
if (m_webFrame->frame()->document()->isMediaDocument())
loader->cancelMainResourceLoad(pluginWillHandleLoadError(loader->response()));
// The plugin widget could have been created in the m_webFrame->DidReceiveData
// function.
if (m_pluginWidget.get()) {
if (!m_sentInitialResponseToPlugin) {
m_sentInitialResponseToPlugin = true;
m_pluginWidget->didReceiveResponse(
m_webFrame->frame()->loader()->activeDocumentLoader()->response());
}
// It's possible that the above call removed the pointer to the plugin, so
// check before calling it.
if (m_pluginWidget.get())
m_pluginWidget->didReceiveData(data, length);
}
}
void FrameLoaderClientImpl::finishedLoading(DocumentLoader* dl)
{
if (m_pluginWidget.get()) {
m_pluginWidget->didFinishLoading();
m_pluginWidget = 0;
m_sentInitialResponseToPlugin = false;
} else {
// This is necessary to create an empty document. See bug 634004.
// However, we only want to do this if makeRepresentation has been called, to
// match the behavior on the Mac.
if (m_hasRepresentation)
dl->writer()->setEncoding("", false);
}
}
void FrameLoaderClientImpl::updateGlobalHistory()
{
}
void FrameLoaderClientImpl::updateGlobalHistoryRedirectLinks()
{
}
bool FrameLoaderClientImpl::shouldGoToHistoryItem(HistoryItem* item) const
{
const KURL& url = item->url();
if (!url.protocolIs(backForwardNavigationScheme))
return true;
// Else, we'll punt this history navigation to the embedder. It is
// necessary that we intercept this here, well before the FrameLoader
// has made any state changes for this history traversal.
bool ok;
int offset = url.lastPathComponent().toIntStrict(&ok);
if (!ok) {
ASSERT_NOT_REACHED();
return false;
}
WebViewImpl* webview = m_webFrame->viewImpl();
if (webview->client())
webview->client()->navigateBackForwardSoon(offset);
return false;
}
bool FrameLoaderClientImpl::shouldStopLoadingForHistoryItem(HistoryItem* targetItem) const
{
// Don't stop loading for pseudo-back-forward URLs, since they will get
// translated and then pass through again.
const KURL& url = targetItem->url();
return !url.protocolIs(backForwardNavigationScheme);
}
void FrameLoaderClientImpl::dispatchDidAddBackForwardItem(HistoryItem*) const
{
}
void FrameLoaderClientImpl::dispatchDidRemoveBackForwardItem(HistoryItem*) const
{
}
void FrameLoaderClientImpl::dispatchDidChangeBackForwardIndex() const
{
}
void FrameLoaderClientImpl::didDisplayInsecureContent()
{
if (m_webFrame->client())
m_webFrame->client()->didDisplayInsecureContent(m_webFrame);
}
void FrameLoaderClientImpl::didRunInsecureContent(SecurityOrigin* origin, const KURL& insecureURL)
{
if (m_webFrame->client())
m_webFrame->client()->didRunInsecureContent(m_webFrame, WebSecurityOrigin(origin), insecureURL);
}
ResourceError FrameLoaderClientImpl::blockedError(const ResourceRequest&)
{
// FIXME
return ResourceError();
}
ResourceError FrameLoaderClientImpl::cancelledError(const ResourceRequest& request)
{
if (!m_webFrame->client())
return ResourceError();
return m_webFrame->client()->cancelledError(
m_webFrame, WrappedResourceRequest(request));
}
ResourceError FrameLoaderClientImpl::cannotShowURLError(const ResourceRequest& request)
{
if (!m_webFrame->client())
return ResourceError();
return m_webFrame->client()->cannotHandleRequestError(
m_webFrame, WrappedResourceRequest(request));
}
ResourceError FrameLoaderClientImpl::interruptForPolicyChangeError(
const ResourceRequest& request)
{
return ResourceError(internalErrorDomain, PolicyChangeError,
request.url().string(), String());
}
ResourceError FrameLoaderClientImpl::cannotShowMIMETypeError(const ResourceResponse&)
{
// FIXME
return ResourceError();
}
ResourceError FrameLoaderClientImpl::fileDoesNotExistError(const ResourceResponse&)
{
// FIXME
return ResourceError();
}
ResourceError FrameLoaderClientImpl::pluginWillHandleLoadError(const ResourceResponse&)
{
// FIXME
return ResourceError();
}
bool FrameLoaderClientImpl::shouldFallBack(const ResourceError& error)
{
// This method is called when we fail to load the URL for an <object> tag
// that has fallback content (child elements) and is being loaded as a frame.
// The error parameter indicates the reason for the load failure.
// We should let the fallback content load only if this wasn't a cancelled
// request.
// Note: The mac version also has a case for "WebKitErrorPluginWillHandleLoad"
ResourceError c = cancelledError(ResourceRequest());
return error.errorCode() != c.errorCode() || error.domain() != c.domain();
}
bool FrameLoaderClientImpl::canHandleRequest(const ResourceRequest& request) const
{
return m_webFrame->client()->canHandleRequest(
m_webFrame, WrappedResourceRequest(request));
}
bool FrameLoaderClientImpl::canShowMIMETypeAsHTML(const String& MIMEType) const
{
notImplemented();
return false;
}
bool FrameLoaderClientImpl::canShowMIMEType(const String& mimeType) const
{
// This method is called to determine if the media type can be shown
// "internally" (i.e. inside the browser) regardless of whether or not the
// browser or a plugin is doing the rendering.
// mimeType strings are supposed to be ASCII, but if they are not for some
// reason, then it just means that the mime type will fail all of these "is
// supported" checks and go down the path of an unhandled mime type.
if (webKitClient()->mimeRegistry()->supportsMIMEType(mimeType) == WebMimeRegistry::IsSupported)
return true;
// If Chrome is started with the --disable-plugins switch, pluginData is null.
PluginData* pluginData = m_webFrame->frame()->page()->pluginData();
// See if the type is handled by an installed plugin, if so, we can show it.
// FIXME: (http://b/1085524) This is the place to stick a preference to
// disable full page plugins (optionally for certain types!)
return !mimeType.isEmpty() && pluginData && pluginData->supportsMimeType(mimeType);
}
bool FrameLoaderClientImpl::representationExistsForURLScheme(const String&) const
{
// FIXME
return false;
}
String FrameLoaderClientImpl::generatedMIMETypeForURLScheme(const String& scheme) const
{
// This appears to generate MIME types for protocol handlers that are handled
// internally. The only place I can find in the WebKit code that uses this
// function is WebView::registerViewClass, where it is used as part of the
// process by which custom view classes for certain document representations
// are registered.
String mimeType("x-apple-web-kit/");
mimeType.append(scheme.lower());
return mimeType;
}
void FrameLoaderClientImpl::frameLoadCompleted()
{
// FIXME: the mac port also conditionally calls setDrawsBackground:YES on
// it's ScrollView here.
// This comment from the Mac port:
// Note: Can be called multiple times.
// Even if already complete, we might have set a previous item on a frame that
// didn't do any data loading on the past transaction. Make sure to clear these out.
// FIXME: setPreviousHistoryItem() no longer exists. http://crbug.com/8566
// m_webFrame->frame()->loader()->setPreviousHistoryItem(0);
}
void FrameLoaderClientImpl::saveViewStateToItem(HistoryItem*)
{
// FIXME
}
void FrameLoaderClientImpl::restoreViewState()
{
// FIXME: probably scrolls to last position when you go back or forward
}
void FrameLoaderClientImpl::provisionalLoadStarted()
{
// FIXME: On mac, this does various caching stuff
}
void FrameLoaderClientImpl::didFinishLoad()
{
OwnPtr<WebPluginLoadObserver> observer = pluginLoadObserver();
if (observer)
observer->didFinishLoading();
}
void FrameLoaderClientImpl::prepareForDataSourceReplacement()
{
// FIXME
}
PassRefPtr<DocumentLoader> FrameLoaderClientImpl::createDocumentLoader(
const ResourceRequest& request,
const SubstituteData& data)
{
RefPtr<WebDataSourceImpl> ds = WebDataSourceImpl::create(request, data);
if (m_webFrame->client())
m_webFrame->client()->didCreateDataSource(m_webFrame, ds.get());
return ds.release();
}
void FrameLoaderClientImpl::setTitle(const StringWithDirection& title, const KURL& url)
{
// FIXME: inform consumer of changes to the title.
}
String FrameLoaderClientImpl::userAgent(const KURL& url)
{
return webKitClient()->userAgent(url);
}
void FrameLoaderClientImpl::savePlatformDataToCachedFrame(CachedFrame*)
{
// The page cache should be disabled.
ASSERT_NOT_REACHED();
}
void FrameLoaderClientImpl::transitionToCommittedFromCachedFrame(CachedFrame*)
{
ASSERT_NOT_REACHED();
}
// Called when the FrameLoader goes into a state in which a new page load
// will occur.
void FrameLoaderClientImpl::transitionToCommittedForNewPage()
{
makeDocumentView();
}
void FrameLoaderClientImpl::didSaveToPageCache()
{
}
void FrameLoaderClientImpl::didRestoreFromPageCache()
{
}
void FrameLoaderClientImpl::dispatchDidBecomeFrameset(bool)
{
}
bool FrameLoaderClientImpl::canCachePage() const
{
// Since we manage the cache, always report this page as non-cacheable to
// FrameLoader.
return false;
}
// Downloading is handled in the browser process, not WebKit. If we get to this
// point, our download detection code in the ResourceDispatcherHost is broken!
void FrameLoaderClientImpl::download(ResourceHandle* handle,
const ResourceRequest& request,
const ResourceRequest& initialRequest,
const ResourceResponse& response)
{
ASSERT_NOT_REACHED();
}
PassRefPtr<Frame> FrameLoaderClientImpl::createFrame(
const KURL& url,
const String& name,
HTMLFrameOwnerElement* ownerElement,
const String& referrer,
bool allowsScrolling,
int marginWidth,
int marginHeight)
{
FrameLoadRequest frameRequest(m_webFrame->frame()->document()->securityOrigin(),
ResourceRequest(url, referrer), name);
return m_webFrame->createChildFrame(frameRequest, ownerElement);
}
void FrameLoaderClientImpl::didTransferChildFrameToNewDocument(Page*)
{
ASSERT(m_webFrame->frame()->ownerElement());
WebFrameImpl* newParent = static_cast<WebFrameImpl*>(m_webFrame->parent());
if (!newParent || !newParent->client())
return;
// Replace the client since the old client may be destroyed when the
// previous page is closed.
m_webFrame->setClient(newParent->client());
}
void FrameLoaderClientImpl::transferLoadingResourceFromPage(unsigned long identifier, DocumentLoader* loader, const ResourceRequest& request, Page* oldPage)
{
assignIdentifierToInitialRequest(identifier, loader, request);
WebFrameImpl* oldWebFrame = WebFrameImpl::fromFrame(oldPage->mainFrame());
if (oldWebFrame && oldWebFrame->client())
oldWebFrame->client()->removeIdentifierForRequest(identifier);
}
PassRefPtr<Widget> FrameLoaderClientImpl::createPlugin(
const IntSize& size, // FIXME: how do we use this?
HTMLPlugInElement* element,
const KURL& url,
const Vector<String>& paramNames,
const Vector<String>& paramValues,
const String& mimeType,
bool loadManually)
{
if (!m_webFrame->client())
return 0;
WebPluginParams params;
params.url = url;
params.mimeType = mimeType;
params.attributeNames = paramNames;
params.attributeValues = paramValues;
params.loadManually = loadManually;
WebPlugin* webPlugin = m_webFrame->client()->createPlugin(m_webFrame, params);
if (!webPlugin)
return 0;
// The container takes ownership of the WebPlugin.
RefPtr<WebPluginContainerImpl> container =
WebPluginContainerImpl::create(element, webPlugin);
if (!webPlugin->initialize(container.get()))
return 0;
// The element might have been removed during plugin initialization!
if (!element->renderer())
return 0;
return container;
}
// This method gets called when a plugin is put in place of html content
// (e.g., acrobat reader).
void FrameLoaderClientImpl::redirectDataToPlugin(Widget* pluginWidget)
{
if (pluginWidget->isPluginContainer())
m_pluginWidget = static_cast<WebPluginContainerImpl*>(pluginWidget);
ASSERT(m_pluginWidget.get());
}
PassRefPtr<Widget> FrameLoaderClientImpl::createJavaAppletWidget(
const IntSize& size,
HTMLAppletElement* element,
const KURL& /* baseURL */,
const Vector<String>& paramNames,
const Vector<String>& paramValues)
{
return createPlugin(size, element, KURL(), paramNames, paramValues,
"application/x-java-applet", false);
}
ObjectContentType FrameLoaderClientImpl::objectContentType(
const KURL& url,
const String& explicitMimeType,
bool shouldPreferPlugInsForImages)
{
// This code is based on Apple's implementation from
// WebCoreSupport/WebFrameBridge.mm.
String mimeType = explicitMimeType;
if (mimeType.isEmpty()) {
// Try to guess the MIME type based off the extension.
String filename = url.lastPathComponent();
int extensionPos = filename.reverseFind('.');
if (extensionPos >= 0) {
String extension = filename.substring(extensionPos + 1);
mimeType = MIMETypeRegistry::getMIMETypeForExtension(extension);
if (mimeType.isEmpty()) {
// If there's no mimetype registered for the extension, check to see
// if a plugin can handle the extension.
mimeType = getPluginMimeTypeFromExtension(extension);
}
}
if (mimeType.isEmpty())
return ObjectContentFrame;
}
// If Chrome is started with the --disable-plugins switch, pluginData is 0.
PluginData* pluginData = m_webFrame->frame()->page()->pluginData();
bool plugInSupportsMIMEType = pluginData && pluginData->supportsMimeType(mimeType);
if (MIMETypeRegistry::isSupportedImageMIMEType(mimeType))
return shouldPreferPlugInsForImages && plugInSupportsMIMEType ? ObjectContentNetscapePlugin : ObjectContentImage;
if (plugInSupportsMIMEType)
return ObjectContentNetscapePlugin;
if (MIMETypeRegistry::isSupportedNonImageMIMEType(mimeType))
return ObjectContentFrame;
return ObjectContentNone;
}
String FrameLoaderClientImpl::overrideMediaType() const
{
// FIXME
return String();
}
bool FrameLoaderClientImpl::actionSpecifiesNavigationPolicy(
const NavigationAction& action,
WebNavigationPolicy* policy)
{
const MouseEvent* event = 0;
if (action.type() == NavigationTypeLinkClicked
&& action.event()->isMouseEvent())
event = static_cast<const MouseEvent*>(action.event());
else if (action.type() == NavigationTypeFormSubmitted
&& action.event()
&& action.event()->underlyingEvent()
&& action.event()->underlyingEvent()->isMouseEvent())
event = static_cast<const MouseEvent*>(action.event()->underlyingEvent());
if (!event)
return false;
return WebViewImpl::navigationPolicyFromMouseEvent(
event->button(), event->ctrlKey(), event->shiftKey(), event->altKey(),
event->metaKey(), policy);
}
PassOwnPtr<WebPluginLoadObserver> FrameLoaderClientImpl::pluginLoadObserver()
{
WebDataSourceImpl* ds = WebDataSourceImpl::fromDocumentLoader(
m_webFrame->frame()->loader()->activeDocumentLoader());
if (!ds) {
// We can arrive here if a popstate event handler detaches this frame.
// FIXME: Remove this code once http://webkit.org/b/36202 is fixed.
ASSERT(!m_webFrame->frame()->page());
return 0;
}
return ds->releasePluginLoadObserver();
}
PassRefPtr<FrameNetworkingContext> FrameLoaderClientImpl::createNetworkingContext()
{
return FrameNetworkingContextImpl::create(m_webFrame->frame());
}
} // namespace WebKit