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TabChild.cpp
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TabChild.cpp
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/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*- */
/* vim: set sw=2 sts=2 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/basictypes.h"
#include "TabChild.h"
#include "BasicLayers.h"
#include "Blob.h"
#include "ContentChild.h"
#include "IndexedDBChild.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/IntentionalCrash.h"
#include "mozilla/docshell/OfflineCacheUpdateChild.h"
#include "mozilla/dom/PContentChild.h"
#include "mozilla/dom/PContentDialogChild.h"
#include "mozilla/ipc/DocumentRendererChild.h"
#include "mozilla/layers/AsyncPanZoomController.h"
#include "mozilla/layers/CompositorChild.h"
#include "mozilla/layers/PLayersChild.h"
#include "mozilla/layout/RenderFrameChild.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/unused.h"
#include "mozIApplication.h"
#include "nsComponentManagerUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsContentUtils.h"
#include "nsEmbedCID.h"
#include "nsEventListenerManager.h"
#include "mozilla/dom/Element.h"
#include "nsIAppsService.h"
#include "nsIBaseWindow.h"
#include "nsIComponentManager.h"
#include "nsIDOMClassInfo.h"
#include "nsIDOMElement.h"
#include "nsIDOMEvent.h"
#include "nsIDOMWindow.h"
#include "nsIDOMWindowUtils.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIJSContextStack.h"
#include "nsIJSRuntimeService.h"
#include "nsISSLStatusProvider.h"
#include "nsIScriptContext.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptSecurityManager.h"
#include "nsISecureBrowserUI.h"
#include "nsIServiceManager.h"
#include "nsISupportsImpl.h"
#include "nsIURI.h"
#include "nsIURIFixup.h"
#include "nsCDefaultURIFixup.h"
#include "nsView.h"
#include "nsIWebBrowser.h"
#include "nsIWebBrowserFocus.h"
#include "nsIWebBrowserSetup.h"
#include "nsIWebProgress.h"
#include "nsIXPCSecurityManager.h"
#include "nsInterfaceHashtable.h"
#include "nsPIDOMWindow.h"
#include "nsPIWindowRoot.h"
#include "nsGlobalWindow.h"
#include "nsPresContext.h"
#include "nsPrintfCString.h"
#include "nsScriptLoader.h"
#include "nsSerializationHelper.h"
#include "nsThreadUtils.h"
#include "nsWeakReference.h"
#include "PCOMContentPermissionRequestChild.h"
#include "PuppetWidget.h"
#include "StructuredCloneUtils.h"
#include "xpcpublic.h"
#include "nsViewportInfo.h"
#define BROWSER_ELEMENT_CHILD_SCRIPT \
NS_LITERAL_STRING("chrome://global/content/BrowserElementChild.js")
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::dom::ipc;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::layout;
using namespace mozilla::docshell;
using namespace mozilla::dom::indexedDB;
using namespace mozilla::widget;
NS_IMPL_ISUPPORTS1(ContentListener, nsIDOMEventListener)
static const nsIntSize kDefaultViewportSize(980, 480);
static const char CANCEL_DEFAULT_PAN_ZOOM[] = "cancel-default-pan-zoom";
static const char BROWSER_ZOOM_TO_RECT[] = "browser-zoom-to-rect";
static const char BEFORE_FIRST_PAINT[] = "before-first-paint";
static const char DETECT_SCROLLABLE_SUBFRAME[] = "detect-scrollable-subframe";
NS_IMETHODIMP
ContentListener::HandleEvent(nsIDOMEvent* aEvent)
{
RemoteDOMEvent remoteEvent;
remoteEvent.mEvent = do_QueryInterface(aEvent);
NS_ENSURE_STATE(remoteEvent.mEvent);
mTabChild->SendEvent(remoteEvent);
return NS_OK;
}
class ContentDialogChild : public PContentDialogChild
{
public:
virtual bool Recv__delete__(const InfallibleTArray<int>& aIntParams,
const InfallibleTArray<nsString>& aStringParams);
};
StaticRefPtr<TabChild> sPreallocatedTab;
/*static*/ void
TabChild::PreloadSlowThings()
{
MOZ_ASSERT(!sPreallocatedTab);
nsRefPtr<TabChild> tab(new TabChild(TabContext(), /* chromeFlags */ 0));
if (!NS_SUCCEEDED(tab->Init()) ||
!tab->InitTabChildGlobal(DONT_LOAD_SCRIPTS)) {
return;
}
tab->TryCacheLoadAndCompileScript(BROWSER_ELEMENT_CHILD_SCRIPT);
sPreallocatedTab = tab;
ClearOnShutdown(&sPreallocatedTab);
}
/*static*/ already_AddRefed<TabChild>
TabChild::Create(const TabContext &aContext, uint32_t aChromeFlags)
{
if (sPreallocatedTab &&
sPreallocatedTab->mChromeFlags == aChromeFlags &&
aContext.IsBrowserOrApp()) {
nsRefPtr<TabChild> child = sPreallocatedTab.get();
sPreallocatedTab = nullptr;
MOZ_ASSERT(!child->mTriedBrowserInit);
child->SetTabContext(aContext);
child->NotifyTabContextUpdated();
return child.forget();
}
nsRefPtr<TabChild> iframe = new TabChild(aContext, aChromeFlags);
return NS_SUCCEEDED(iframe->Init()) ? iframe.forget() : nullptr;
}
TabChild::TabChild(const TabContext& aContext, uint32_t aChromeFlags)
: TabContext(aContext)
, mRemoteFrame(nullptr)
, mTabChildGlobal(nullptr)
, mChromeFlags(aChromeFlags)
, mOuterRect(0, 0, 0, 0)
, mInnerSize(0, 0)
, mActivePointerId(-1)
, mTapHoldTimer(nullptr)
, mOldViewportWidth(0.0f)
, mLastBackgroundColor(NS_RGB(255, 255, 255))
, mDidFakeShow(false)
, mNotified(false)
, mContentDocumentIsDisplayed(false)
, mTriedBrowserInit(false)
, mOrientation(eScreenOrientation_PortraitPrimary)
{
printf("creating %d!\n", NS_IsMainThread());
}
NS_IMETHODIMP
TabChild::HandleEvent(nsIDOMEvent* aEvent)
{
nsAutoString eventType;
aEvent->GetType(eventType);
if (eventType.EqualsLiteral("DOMMetaAdded")) {
// This meta data may or may not have been a meta viewport tag. If it was,
// we should handle it immediately.
HandlePossibleViewportChange();
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *aData)
{
if (!strcmp(aTopic, CANCEL_DEFAULT_PAN_ZOOM)) {
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aSubject));
nsCOMPtr<nsITabChild> tabChild(GetTabChildFrom(docShell));
if (tabChild == this) {
mRemoteFrame->CancelDefaultPanZoom();
}
} else if (!strcmp(aTopic, BROWSER_ZOOM_TO_RECT)) {
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aSubject));
nsCOMPtr<nsITabChild> tabChild(GetTabChildFrom(docShell));
if (tabChild == this) {
gfxRect rect;
sscanf(NS_ConvertUTF16toUTF8(aData).get(),
"{\"x\":%lf,\"y\":%lf,\"w\":%lf,\"h\":%lf}",
&rect.x, &rect.y, &rect.width, &rect.height);
SendZoomToRect(rect);
}
} else if (!strcmp(aTopic, BEFORE_FIRST_PAINT)) {
if (IsAsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> subject(do_QueryInterface(aSubject));
nsCOMPtr<nsIDOMDocument> domDoc;
mWebNav->GetDocument(getter_AddRefs(domDoc));
nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
if (SameCOMIdentity(subject, doc)) {
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
mContentDocumentIsDisplayed = true;
// Reset CSS viewport and zoom to default on new page, then
// calculate them properly using the actual metadata from the
// page.
SetCSSViewport(kDefaultViewportSize.width, kDefaultViewportSize.height);
// Calculate a really simple resolution that we probably won't
// be keeping, as well as putting the scroll offset back to
// the top-left of the page.
mLastMetrics.mZoom = gfxSize(1.0, 1.0);
mLastMetrics.mViewport =
gfx::Rect(0, 0,
kDefaultViewportSize.width, kDefaultViewportSize.height);
mLastMetrics.mCompositionBounds = nsIntRect(nsIntPoint(0, 0),
mInnerSize);
mLastMetrics.mResolution =
AsyncPanZoomController::CalculateResolution(mLastMetrics);
mLastMetrics.mScrollOffset = gfx::Point(0, 0);
utils->SetResolution(mLastMetrics.mResolution.width,
mLastMetrics.mResolution.height);
HandlePossibleViewportChange();
}
}
} else if (!strcmp(aTopic, DETECT_SCROLLABLE_SUBFRAME)) {
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aSubject));
nsCOMPtr<nsITabChild> tabChild(GetTabChildFrom(docShell));
if (tabChild == this) {
mRemoteFrame->DetectScrollableSubframe();
}
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
uint32_t aStateFlags,
nsresult aStatus)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnProgressChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
int32_t aCurSelfProgress,
int32_t aMaxSelfProgress,
int32_t aCurTotalProgress,
int32_t aMaxTotalProgress)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnLocationChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsIURI *aLocation,
uint32_t aFlags)
{
if (!IsAsyncPanZoomEnabled()) {
return NS_OK;
}
nsCOMPtr<nsIDOMWindow> window;
aWebProgress->GetDOMWindow(getter_AddRefs(window));
if (!window) {
return NS_OK;
}
nsCOMPtr<nsIDOMWindowUtils> utils(do_GetInterface(window));
utils->SetIsFirstPaint(true);
nsCOMPtr<nsIDOMDocument> progressDoc;
window->GetDocument(getter_AddRefs(progressDoc));
if (!progressDoc) {
return NS_OK;
}
nsCOMPtr<nsIDOMDocument> domDoc;
mWebNav->GetDocument(getter_AddRefs(domDoc));
if (!domDoc || !SameCOMIdentity(domDoc, progressDoc)) {
return NS_OK;
}
nsCOMPtr<nsIURIFixup> urifixup(do_GetService(NS_URIFIXUP_CONTRACTID));
if (!urifixup) {
return NS_OK;
}
nsCOMPtr<nsIURI> exposableURI;
urifixup->CreateExposableURI(aLocation, getter_AddRefs(exposableURI));
if (!exposableURI) {
return NS_OK;
}
if (!(aFlags & nsIWebProgressListener::LOCATION_CHANGE_SAME_DOCUMENT)) {
mContentDocumentIsDisplayed = false;
} else if (mLastURI != nullptr) {
bool exposableEqualsLast, exposableEqualsNew;
exposableURI->Equals(mLastURI.get(), &exposableEqualsLast);
exposableURI->Equals(aLocation, &exposableEqualsNew);
if (exposableEqualsLast && !exposableEqualsNew) {
mContentDocumentIsDisplayed = false;
}
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const PRUnichar* aMessage)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnSecurityChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
uint32_t aState)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
void
TabChild::SetCSSViewport(float aWidth, float aHeight)
{
mOldViewportWidth = aWidth;
if (mContentDocumentIsDisplayed) {
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
utils->SetCSSViewport(aWidth, aHeight);
}
}
void
TabChild::HandlePossibleViewportChange()
{
if (!IsAsyncPanZoomEnabled()) {
return;
}
nsCOMPtr<nsIDOMDocument> domDoc;
mWebNav->GetDocument(getter_AddRefs(domDoc));
nsCOMPtr<nsIDocument> document(do_QueryInterface(domDoc));
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
nsViewportInfo viewportInfo =
nsContentUtils::GetViewportInfo(document, mInnerSize.width, mInnerSize.height);
SendUpdateZoomConstraints(viewportInfo.IsZoomAllowed(),
viewportInfo.GetMinZoom(),
viewportInfo.GetMaxZoom());
float screenW = mInnerSize.width;
float screenH = mInnerSize.height;
float viewportW = viewportInfo.GetWidth();
float viewportH = viewportInfo.GetHeight();
// We're not being displayed in any way; don't bother doing anything because
// that will just confuse future adjustments.
if (!screenW || !screenH) {
return;
}
// Make sure the viewport height is not shorter than the window when the page
// is zoomed out to show its full width. Note that before we set the viewport
// width, the "full width" of the page isn't properly defined, so that's why
// we have to call SetCSSViewport twice - once to set the width, and the
// second time to figure out the height based on the layout at that width.
float oldBrowserWidth = mOldViewportWidth;
mLastMetrics.mViewport.width = viewportW;
mLastMetrics.mViewport.height = viewportH;
if (!oldBrowserWidth) {
oldBrowserWidth = kDefaultViewportSize.width;
}
SetCSSViewport(viewportW, viewportH);
// If this page has not been painted yet, then this must be getting run
// because a meta-viewport element was added (via the DOMMetaAdded handler).
// in this case, we should not do anything that forces a reflow (see bug
// 759678) such as requesting the page size or sending a viewport update. this
// code will get run again in the before-first-paint handler and that point we
// will run though all of it. the reason we even bother executing up to this
// point on the DOMMetaAdded handler is so that scripts that use
// window.innerWidth before they are painted have a correct value (bug
// 771575).
if (!mContentDocumentIsDisplayed) {
return;
}
float minScale = 1.0f;
nsCOMPtr<nsIDOMElement> htmlDOMElement = do_QueryInterface(document->GetHtmlElement());
nsCOMPtr<nsIDOMElement> bodyDOMElement = do_QueryInterface(document->GetBodyElement());
int32_t htmlWidth = 0, htmlHeight = 0;
if (htmlDOMElement) {
htmlDOMElement->GetScrollWidth(&htmlWidth);
htmlDOMElement->GetScrollHeight(&htmlHeight);
}
int32_t bodyWidth = 0, bodyHeight = 0;
if (bodyDOMElement) {
bodyDOMElement->GetScrollWidth(&bodyWidth);
bodyDOMElement->GetScrollHeight(&bodyHeight);
}
float pageWidth, pageHeight;
if (htmlDOMElement || bodyDOMElement) {
pageWidth = NS_MAX(htmlWidth, bodyWidth);
pageHeight = NS_MAX(htmlHeight, bodyHeight);
} else {
// For non-HTML content (e.g. SVG), just assume page size == viewport size.
pageWidth = viewportW;
pageHeight = viewportH;
}
NS_ENSURE_TRUE_VOID(pageWidth); // (return early rather than divide by 0)
minScale = mInnerSize.width / pageWidth;
minScale = clamped((double)minScale, viewportInfo.GetMinZoom(),
viewportInfo.GetMaxZoom());
NS_ENSURE_TRUE_VOID(minScale); // (return early rather than divide by 0)
viewportH = NS_MAX(viewportH, screenH / minScale);
SetCSSViewport(viewportW, viewportH);
// This change to the zoom accounts for all types of changes I can conceive:
// 1. screen size changes, CSS viewport does not (pages with no meta viewport
// or a fixed size viewport)
// 2. screen size changes, CSS viewport also does (pages with a device-width
// viewport)
// 3. screen size remains constant, but CSS viewport changes (meta viewport
// tag is added or removed)
// 4. neither screen size nor CSS viewport changes
//
// In all of these cases, we maintain how much actual content is visible
// within the screen width. Note that "actual content" may be different with
// respect to CSS pixels because of the CSS viewport size changing.
int32_t oldScreenWidth = mLastMetrics.mCompositionBounds.width;
if (!oldScreenWidth) {
oldScreenWidth = mInnerSize.width;
}
FrameMetrics metrics(mLastMetrics);
metrics.mViewport = gfx::Rect(0.0f, 0.0f, viewportW, viewportH);
metrics.mScrollableRect = gfx::Rect(0.0f, 0.0f, pageWidth, pageHeight);
metrics.mCompositionBounds = nsIntRect(0, 0, mInnerSize.width, mInnerSize.height);
// Changing the zoom when we're not doing a first paint will get ignored
// by AsyncPanZoomController and causes a blurry flash.
bool isFirstPaint;
nsresult rv = utils->GetIsFirstPaint(&isFirstPaint);
MOZ_ASSERT(NS_SUCCEEDED(rv));
if (NS_FAILED(rv) || isFirstPaint) {
gfxSize intrinsicScale =
AsyncPanZoomController::CalculateIntrinsicScale(metrics);
// FIXME/bug 799585(?): GetViewportInfo() returns a defaultZoom of
// 0.0 to mean "did not calculate a zoom". In that case, we default
// it to the intrinsic scale.
if (viewportInfo.GetDefaultZoom() < 0.01f) {
viewportInfo.SetDefaultZoom(intrinsicScale.width);
}
double defaultZoom = viewportInfo.GetDefaultZoom();
MOZ_ASSERT(viewportInfo.GetMinZoom() <= defaultZoom &&
defaultZoom <= viewportInfo.GetMaxZoom());
// GetViewportInfo() returns a resolution-dependent scale factor.
// Convert that to a resolution-indepedent zoom.
metrics.mZoom = gfxSize(defaultZoom / intrinsicScale.width,
defaultZoom / intrinsicScale.height);
}
metrics.mDisplayPort = AsyncPanZoomController::CalculatePendingDisplayPort(
// The page must have been refreshed in some way such as a new document or
// new CSS viewport, so we know that there's no velocity, acceleration, and
// we have no idea how long painting will take.
metrics, gfx::Point(0.0f, 0.0f), gfx::Point(0.0f, 0.0f), 0.0);
gfxSize resolution = AsyncPanZoomController::CalculateResolution(metrics);
// XXX is this actually hysteresis? This calculation is not well
// understood. It's taken from the previous JS implementation.
gfxFloat hysteresis/*?*/ =
gfxFloat(oldBrowserWidth) / gfxFloat(oldScreenWidth);
resolution.width *= hysteresis;
resolution.height *= hysteresis;
metrics.mResolution = resolution;
utils->SetResolution(metrics.mResolution.width, metrics.mResolution.height);
// Force a repaint with these metrics. This, among other things, sets the
// displayport, so we start with async painting.
RecvUpdateFrame(metrics);
}
nsresult
TabChild::Init()
{
nsCOMPtr<nsIWebBrowser> webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID);
if (!webBrowser) {
NS_ERROR("Couldn't create a nsWebBrowser?");
return NS_ERROR_FAILURE;
}
webBrowser->SetContainerWindow(this);
mWebNav = do_QueryInterface(webBrowser);
NS_ASSERTION(mWebNav, "nsWebBrowser doesn't implement nsIWebNavigation?");
nsCOMPtr<nsIDocShellTreeItem> docShellItem(do_QueryInterface(mWebNav));
docShellItem->SetItemType(nsIDocShellTreeItem::typeContentWrapper);
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(mWebNav);
if (!baseWindow) {
NS_ERROR("mWebNav doesn't QI to nsIBaseWindow");
return NS_ERROR_FAILURE;
}
mWidget = nsIWidget::CreatePuppetWidget(this);
if (!mWidget) {
NS_ERROR("couldn't create fake widget");
return NS_ERROR_FAILURE;
}
mWidget->Create(
nullptr, 0, // no parents
nsIntRect(nsIntPoint(0, 0), nsIntSize(0, 0)),
nullptr, // HandleWidgetEvent
nullptr // nsDeviceContext
);
baseWindow->InitWindow(0, mWidget, 0, 0, 0, 0);
baseWindow->Create();
NotifyTabContextUpdated();
// IPC uses a WebBrowser object for which DNS prefetching is turned off
// by default. But here we really want it, so enable it explicitly
nsCOMPtr<nsIWebBrowserSetup> webBrowserSetup =
do_QueryInterface(baseWindow);
if (webBrowserSetup) {
webBrowserSetup->SetProperty(nsIWebBrowserSetup::SETUP_ALLOW_DNS_PREFETCH,
true);
} else {
NS_WARNING("baseWindow doesn't QI to nsIWebBrowserSetup, skipping "
"DNS prefetching enable step.");
}
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mWebNav);
MOZ_ASSERT(docShell);
nsCOMPtr<nsIWebProgress> webProgress = do_GetInterface(docShell);
NS_ENSURE_TRUE(webProgress, NS_ERROR_FAILURE);
webProgress->AddProgressListener(this, nsIWebProgress::NOTIFY_LOCATION);
return NS_OK;
}
void
TabChild::NotifyTabContextUpdated()
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mWebNav);
MOZ_ASSERT(docShell);
if (docShell) {
// nsDocShell will do the right thing if we pass NO_APP_ID or
// UNKNOWN_APP_ID for aOwnOrContainingAppId.
if (IsBrowserElement()) {
docShell->SetIsBrowserInsideApp(BrowserOwnerAppId());
} else {
docShell->SetIsApp(OwnAppId());
}
}
}
NS_INTERFACE_MAP_BEGIN(TabChild)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWebBrowserChrome)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome2)
NS_INTERFACE_MAP_ENTRY(nsIEmbeddingSiteWindow)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChromeFocus)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY(nsIWindowProvider)
NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
NS_INTERFACE_MAP_ENTRY(nsITabChild)
NS_INTERFACE_MAP_ENTRY(nsIDialogCreator)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_ENTRY(nsSupportsWeakReference)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(TabChild)
NS_IMPL_RELEASE(TabChild)
NS_IMETHODIMP
TabChild::SetStatus(uint32_t aStatusType, const PRUnichar* aStatus)
{
// FIXME/bug 617804: should the platform support this?
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetWebBrowser(nsIWebBrowser** aWebBrowser)
{
NS_NOTREACHED("TabChild::GetWebBrowser not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetWebBrowser(nsIWebBrowser* aWebBrowser)
{
NS_NOTREACHED("TabChild::SetWebBrowser not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::GetChromeFlags(uint32_t* aChromeFlags)
{
*aChromeFlags = mChromeFlags;
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetChromeFlags(uint32_t aChromeFlags)
{
NS_NOTREACHED("trying to SetChromeFlags from content process?");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::DestroyBrowserWindow()
{
NS_NOTREACHED("TabChild::SetWebBrowser not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SizeBrowserTo(int32_t aCX, int32_t aCY)
{
NS_NOTREACHED("TabChild::SizeBrowserTo not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::ShowAsModal()
{
NS_NOTREACHED("TabChild::ShowAsModal not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::IsWindowModal(bool* aRetVal)
{
*aRetVal = false;
return NS_OK;
}
NS_IMETHODIMP
TabChild::ExitModalEventLoop(nsresult aStatus)
{
NS_NOTREACHED("TabChild::ExitModalEventLoop not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetStatusWithContext(uint32_t aStatusType,
const nsAString& aStatusText,
nsISupports* aStatusContext)
{
// FIXME/bug 617804: should the platform support this?
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetDimensions(uint32_t aFlags, int32_t aX, int32_t aY,
int32_t aCx, int32_t aCy)
{
NS_NOTREACHED("TabChild::SetDimensions not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::GetDimensions(uint32_t aFlags, int32_t* aX,
int32_t* aY, int32_t* aCx, int32_t* aCy)
{
if (aX) {
*aX = mOuterRect.x;
}
if (aY) {
*aY = mOuterRect.y;
}
if (aCx) {
*aCx = mOuterRect.width;
}
if (aCy) {
*aCy = mOuterRect.height;
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetFocus()
{
NS_NOTREACHED("TabChild::SetFocus not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::GetVisibility(bool* aVisibility)
{
*aVisibility = true;
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetVisibility(bool aVisibility)
{
// should the platform support this? Bug 666365
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetTitle(PRUnichar** aTitle)
{
NS_NOTREACHED("TabChild::GetTitle not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetTitle(const PRUnichar* aTitle)
{
// FIXME/bug 617804: should the platform support this?
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetSiteWindow(void** aSiteWindow)
{
NS_NOTREACHED("TabChild::GetSiteWindow not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::Blur()
{
NS_NOTREACHED("TabChild::Blur not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::FocusNextElement()
{
SendMoveFocus(true);
return NS_OK;
}
NS_IMETHODIMP
TabChild::FocusPrevElement()
{
SendMoveFocus(false);
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetInterface(const nsIID & aIID, void **aSink)
{
// XXXbz should we restrict the set of interfaces we hand out here?
// See bug 537429
return QueryInterface(aIID, aSink);
}
NS_IMETHODIMP
TabChild::ProvideWindow(nsIDOMWindow* aParent, uint32_t aChromeFlags,
bool aCalledFromJS,
bool aPositionSpecified, bool aSizeSpecified,
nsIURI* aURI, const nsAString& aName,
const nsACString& aFeatures, bool* aWindowIsNew,
nsIDOMWindow** aReturn)
{
*aReturn = nullptr;
// If aParent is inside an <iframe mozbrowser> or <iframe mozapp> and this
// isn't a request to open a modal-type window, we're going to create a new
// <iframe mozbrowser/mozapp> and return its window here.
nsCOMPtr<nsIDocShell> docshell = do_GetInterface(aParent);
if (docshell && docshell->GetIsInBrowserOrApp() &&
!(aChromeFlags & (nsIWebBrowserChrome::CHROME_MODAL |
nsIWebBrowserChrome::CHROME_OPENAS_DIALOG |
nsIWebBrowserChrome::CHROME_OPENAS_CHROME))) {
// Note that BrowserFrameProvideWindow may return NS_ERROR_ABORT if the
// open window call was canceled. It's important that we pass this error
// code back to our caller.
return BrowserFrameProvideWindow(aParent, aURI, aName, aFeatures,
aWindowIsNew, aReturn);
}
// Otherwise, create a new top-level window.
PBrowserChild* newChild;
if (!CallCreateWindow(&newChild)) {
return NS_ERROR_NOT_AVAILABLE;
}
*aWindowIsNew = true;
nsCOMPtr<nsIDOMWindow> win =
do_GetInterface(static_cast<TabChild*>(newChild)->mWebNav);
win.forget(aReturn);
return NS_OK;
}
nsresult
TabChild::BrowserFrameProvideWindow(nsIDOMWindow* aOpener,
nsIURI* aURI,
const nsAString& aName,
const nsACString& aFeatures,
bool* aWindowIsNew,
nsIDOMWindow** aReturn)
{
*aReturn = nullptr;
nsRefPtr<TabChild> newChild =
new TabChild(/* TabContext */ *this, /* chromeFlags */ 0);
if (!NS_SUCCEEDED(newChild->Init())) {
return NS_ERROR_ABORT;
}
// We must use PopupIPCTabContext here; ContentParent will not accept the
// result of this->AsIPCTabContext() (which will be a
// BrowserFrameIPCTabContext or an AppFrameIPCTabContext), for security
// reasons.
PopupIPCTabContext context;
context.openerChild() = this;
context.isBrowserElement() = IsBrowserElement();
unused << Manager()->SendPBrowserConstructor(
// We release this ref in DeallocPBrowserChild
nsRefPtr<TabChild>(newChild).forget().get(),
IPCTabContext(context, mScrolling), /* chromeFlags */ 0);
nsAutoCString spec;
if (aURI) {
aURI->GetSpec(spec);
}
NS_ConvertUTF8toUTF16 url(spec);
nsString name(aName);
NS_ConvertUTF8toUTF16 features(aFeatures);
newChild->SendBrowserFrameOpenWindow(this, url, name,
features, aWindowIsNew);
if (!*aWindowIsNew) {
PBrowserChild::Send__delete__(newChild);
return NS_ERROR_ABORT;
}
// Unfortunately we don't get a window unless we've shown the frame. That's
// pretty bogus; see bug 763602.
newChild->DoFakeShow();
nsCOMPtr<nsIDOMWindow> win = do_GetInterface(newChild->mWebNav);
win.forget(aReturn);
return NS_OK;
}
static nsInterfaceHashtable<nsPtrHashKey<PContentDialogChild>, nsIDialogParamBlock> gActiveDialogs;
NS_IMETHODIMP
TabChild::OpenDialog(uint32_t aType, const nsACString& aName,
const nsACString& aFeatures,
nsIDialogParamBlock* aArguments,
nsIDOMElement* aFrameElement)
{
if (!gActiveDialogs.IsInitialized()) {
gActiveDialogs.Init();
}
InfallibleTArray<int32_t> intParams;
InfallibleTArray<nsString> stringParams;
ParamsToArrays(aArguments, intParams, stringParams);
PContentDialogChild* dialog =
SendPContentDialogConstructor(aType, nsCString(aName),
nsCString(aFeatures), intParams, stringParams);
gActiveDialogs.Put(dialog, aArguments);
nsIThread *thread = NS_GetCurrentThread();
while (gActiveDialogs.GetWeak(dialog)) {
if (!NS_ProcessNextEvent(thread)) {
break;
}
}
return NS_OK;
}
bool
ContentDialogChild::Recv__delete__(const InfallibleTArray<int>& aIntParams,
const InfallibleTArray<nsString>& aStringParams)
{
nsCOMPtr<nsIDialogParamBlock> params;
if (gActiveDialogs.Get(this, getter_AddRefs(params))) {
TabChild::ArraysToParams(aIntParams, aStringParams, params);
gActiveDialogs.Remove(this);
}
return true;
}
void
TabChild::ParamsToArrays(nsIDialogParamBlock* aParams,
InfallibleTArray<int>& aIntParams,
InfallibleTArray<nsString>& aStringParams)
{
if (aParams) {
for (int32_t i = 0; i < 8; ++i) {
int32_t val = 0;
aParams->GetInt(i, &val);
aIntParams.AppendElement(val);
}
int32_t j = 0;
nsXPIDLString strVal;
while (NS_SUCCEEDED(aParams->GetString(j, getter_Copies(strVal)))) {
aStringParams.AppendElement(strVal);
++j;
}
}
}
void
TabChild::ArraysToParams(const InfallibleTArray<int>& aIntParams,
const InfallibleTArray<nsString>& aStringParams,
nsIDialogParamBlock* aParams)
{
if (aParams) {
for (int32_t i = 0; uint32_t(i) < aIntParams.Length(); ++i) {
aParams->SetInt(i, aIntParams[i]);
}
for (int32_t j = 0; uint32_t(j) < aStringParams.Length(); ++j) {
aParams->SetString(j, aStringParams[j].get());
}
}
}
void
TabChild::DestroyWindow()
{
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(mWebNav);
if (baseWindow)
baseWindow->Destroy();
// NB: the order of mWidget->Destroy() and mRemoteFrame->Destroy()
// is important: we want to kill off remote layers before their
// frames
if (mWidget) {
mWidget->Destroy();
}
if (mRemoteFrame) {
mRemoteFrame->Destroy();
mRemoteFrame = nullptr;
}
}
bool
TabChild::UseDirectCompositor()
{
return !!CompositorChild::Get();