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7482429c48
gecko/dom/base/nsDOMWindowUtils.cpp
Milan Sreckovic 7482429c48 Bug 895003 - Introduce a second preference to control the chrome paint flashing - nglayout.debug.paint_flashing_chrome. r=roc 
The original pref still controls content and chrome when set. The preference is now live, for content and chrome, the change will be seen on the next refresh. The cached value is now in nsPresContext, rather than nsRefreshDriver.
2013-07-22 11:51:38 -04:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/PLayerTransactionChild.h"
#include "nsIDocShell.h"
#include "nsPresContext.h"
#include "nsDOMClassInfoID.h"
#include "nsError.h"
#include "nsIDOMEvent.h"
#include "nsDOMWindowUtils.h"
#include "nsQueryContentEventResult.h"
#include "nsGlobalWindow.h"
#include "nsIDocument.h"
#include "nsFocusManager.h"
#include "nsEventStateManager.h"
#include "nsFrameManager.h"
#include "nsRefreshDriver.h"
#include "nsDOMTouchEvent.h"
#include "mozilla/dom/Touch.h"
#include "nsIDOMTouchEvent.h"
#include "nsObjectLoadingContent.h"
#include "nsFrame.h"
#include "nsIScrollableFrame.h"
#include "nsContentUtils.h"
#include "nsLayoutUtils.h"
#include "nsIFrame.h"
#include "nsIWidget.h"
#include "nsGUIEvent.h"
#include "nsCharsetSource.h"
#include "nsJSEnvironment.h"
#include "nsJSUtils.h"
#include "nsViewManager.h"
#include "nsIDOMHTMLCanvasElement.h"
#include "gfxContext.h"
#include "gfxImageSurface.h"
#include "nsLayoutUtils.h"
#include "nsComputedDOMStyle.h"
#include "nsIPresShell.h"
#include "nsStyleAnimation.h"
#include "nsCSSProps.h"
#include "nsDOMFile.h"
#include "BasicLayers.h"
#include "nsTArrayHelpers.h"
#include "nsIDocShell.h"
#include "nsIContentViewer.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsClientRect.h"
#include <algorithm>
#if defined(MOZ_X11) && defined(MOZ_WIDGET_GTK)
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#endif
#include "Layers.h"
#include "nsIIOService.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/indexedDB/IndexedDatabaseManager.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "GeckoProfiler.h"
#include "nsDOMBlobBuilder.h"
#include "nsIDOMFileHandle.h"
#include "nsPrintfCString.h"
#include "nsViewportInfo.h"
#include "nsIFormControl.h"
#include "nsIScriptError.h"
#include "nsIAppShell.h"
#include "nsWidgetsCID.h"
#include "FrameLayerBuilder.h"
#include "nsDisplayList.h"
#include "nsROCSSPrimitiveValue.h"
#ifdef XP_WIN
#undef GetClassName
#endif
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::layers;
using namespace mozilla::widget;
static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
DOMCI_DATA(WindowUtils, nsDOMWindowUtils)
NS_INTERFACE_MAP_BEGIN(nsDOMWindowUtils)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMWindowUtils)
NS_INTERFACE_MAP_ENTRY(nsIDOMWindowUtils)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(WindowUtils)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMWindowUtils)
NS_IMPL_RELEASE(nsDOMWindowUtils)
nsDOMWindowUtils::nsDOMWindowUtils(nsGlobalWindow *aWindow)
{
nsCOMPtr<nsISupports> supports = do_QueryObject(aWindow);
mWindow = do_GetWeakReference(supports);
NS_ASSERTION(aWindow->IsOuterWindow(), "How did that happen?");
}
nsDOMWindowUtils::~nsDOMWindowUtils()
{
}
nsIPresShell*
nsDOMWindowUtils::GetPresShell()
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (!window)
return nullptr;
nsIDocShell *docShell = window->GetDocShell();
if (!docShell)
return nullptr;
return docShell->GetPresShell();
}
nsPresContext*
nsDOMWindowUtils::GetPresContext()
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (!window)
return nullptr;
nsIDocShell *docShell = window->GetDocShell();
if (!docShell)
return nullptr;
nsRefPtr<nsPresContext> presContext;
docShell->GetPresContext(getter_AddRefs(presContext));
return presContext;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetImageAnimationMode(uint16_t *aMode)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aMode);
*aMode = 0;
nsPresContext* presContext = GetPresContext();
if (presContext) {
*aMode = presContext->ImageAnimationMode();
return NS_OK;
}
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetImageAnimationMode(uint16_t aMode)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsPresContext* presContext = GetPresContext();
if (presContext) {
presContext->SetImageAnimationMode(aMode);
return NS_OK;
}
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetDocCharsetIsForced(bool *aIsForced)
{
*aIsForced = false;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (window) {
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
*aIsForced = doc &&
doc->GetDocumentCharacterSetSource() >= kCharsetFromParentForced;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetDocumentMetadata(const nsAString& aName,
nsAString& aValue)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (window) {
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
if (doc) {
nsCOMPtr<nsIAtom> name = do_GetAtom(aName);
doc->GetHeaderData(name, aValue);
return NS_OK;
}
}
aValue.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::Redraw(uint32_t aCount, uint32_t *aDurationOut)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (aCount == 0)
aCount = 1;
if (nsIPresShell* presShell = GetPresShell()) {
nsIFrame *rootFrame = presShell->GetRootFrame();
if (rootFrame) {
PRIntervalTime iStart = PR_IntervalNow();
for (uint32_t i = 0; i < aCount; i++)
rootFrame->InvalidateFrame();
#if defined(MOZ_X11) && defined(MOZ_WIDGET_GTK)
XSync(GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), False);
#endif
*aDurationOut = PR_IntervalToMilliseconds(PR_IntervalNow() - iStart);
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetCSSViewport(float aWidthPx, float aHeightPx)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!(aWidthPx >= 0.0 && aHeightPx >= 0.0)) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsIPresShell* presShell = GetPresShell();
if (!presShell) {
return NS_ERROR_FAILURE;
}
nscoord width = nsPresContext::CSSPixelsToAppUnits(aWidthPx);
nscoord height = nsPresContext::CSSPixelsToAppUnits(aHeightPx);
presShell->ResizeReflowOverride(width, height);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetViewportInfo(uint32_t aDisplayWidth,
uint32_t aDisplayHeight,
double *aDefaultZoom, bool *aAllowZoom,
double *aMinZoom, double *aMaxZoom,
uint32_t *aWidth, uint32_t *aHeight,
bool *aAutoSize)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
nsViewportInfo info = nsContentUtils::GetViewportInfo(doc, aDisplayWidth, aDisplayHeight);
*aDefaultZoom = info.GetDefaultZoom();
*aAllowZoom = info.IsZoomAllowed();
*aMinZoom = info.GetMinZoom();
*aMaxZoom = info.GetMaxZoom();
*aWidth = info.GetWidth();
*aHeight = info.GetHeight();
*aAutoSize = info.IsAutoSizeEnabled();
return NS_OK;
}
static void DestroyNsRect(void* aObject, nsIAtom* aPropertyName,
void* aPropertyValue, void* aData)
{
nsRect* rect = static_cast<nsRect*>(aPropertyValue);
delete rect;
}
static void
MaybeReflowForInflationScreenWidthChange(nsPresContext *aPresContext)
{
if (aPresContext) {
nsIPresShell* presShell = aPresContext->GetPresShell();
bool fontInflationWasEnabled = presShell->FontSizeInflationEnabled();
presShell->NotifyFontSizeInflationEnabledIsDirty();
bool changed = false;
if (presShell && presShell->FontSizeInflationEnabled() &&
presShell->FontSizeInflationMinTwips() != 0) {
aPresContext->ScreenWidthInchesForFontInflation(&changed);
}
changed = changed ||
(fontInflationWasEnabled != presShell->FontSizeInflationEnabled());
if (changed) {
nsCOMPtr<nsISupports> container = aPresContext->GetContainer();
nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(container);
if (docShell) {
nsCOMPtr<nsIContentViewer> cv;
docShell->GetContentViewer(getter_AddRefs(cv));
nsCOMPtr<nsIMarkupDocumentViewer> mudv = do_QueryInterface(cv);
if (mudv) {
nsTArray<nsCOMPtr<nsIMarkupDocumentViewer> > array;
mudv->AppendSubtree(array);
for (uint32_t i = 0, iEnd = array.Length(); i < iEnd; ++i) {
nsCOMPtr<nsIPresShell> shell;
nsCOMPtr<nsIContentViewer> cv = do_QueryInterface(array[i]);
cv->GetPresShell(getter_AddRefs(shell));
if (shell) {
nsIFrame *rootFrame = shell->GetRootFrame();
if (rootFrame) {
shell->FrameNeedsReflow(rootFrame,
nsIPresShell::eStyleChange,
NS_FRAME_IS_DIRTY);
}
}
}
}
}
}
}
}
NS_IMETHODIMP
nsDOMWindowUtils::SetDisplayPortForElement(float aXPx, float aYPx,
float aWidthPx, float aHeightPx,
nsIDOMElement* aElement)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (!presShell) {
return NS_ERROR_FAILURE;
}
nsRect displayport(nsPresContext::CSSPixelsToAppUnits(aXPx),
nsPresContext::CSSPixelsToAppUnits(aYPx),
nsPresContext::CSSPixelsToAppUnits(aWidthPx),
nsPresContext::CSSPixelsToAppUnits(aHeightPx));
if (!aElement) {
return NS_ERROR_INVALID_ARG;
}
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
if (!content) {
return NS_ERROR_INVALID_ARG;
}
if (content->GetCurrentDoc() != presShell->GetDocument()) {
return NS_ERROR_INVALID_ARG;
}
content->SetProperty(nsGkAtoms::DisplayPort, new nsRect(displayport),
DestroyNsRect);
nsIFrame* rootScrollFrame = presShell->GetRootScrollFrame();
if (rootScrollFrame) {
if (content == rootScrollFrame->GetContent()) {
// We are setting a root displayport for a document.
// The pres shell needs a special flag set.
presShell->SetIgnoreViewportScrolling(true);
// When the "font.size.inflation.minTwips" preference is set, the
// layout depends on the size of the screen. Since when the size
// of the screen changes, the root displayport also changes, we
// hook in the needed updates here rather than adding a
// separate notification just for this change.
nsPresContext* presContext = GetPresContext();
MaybeReflowForInflationScreenWidthChange(presContext);
}
}
nsIFrame* rootFrame = presShell->FrameManager()->GetRootFrame();
if (rootFrame) {
rootFrame->SchedulePaint();
// If we are hiding something that is a display root then send empty paint
// transaction in order to release retained layers because it won't get
// any more paint requests when it is hidden.
if (displayport.IsEmpty() &&
rootFrame == nsLayoutUtils::GetDisplayRootFrame(rootFrame)) {
nsCOMPtr<nsIWidget> widget = GetWidget();
if (widget) {
bool isRetainingManager;
LayerManager* manager = widget->GetLayerManager(&isRetainingManager);
if (isRetainingManager) {
manager->BeginTransaction();
nsLayoutUtils::PaintFrame(nullptr, rootFrame, nsRegion(), NS_RGB(255, 255, 255),
nsLayoutUtils::PAINT_WIDGET_LAYERS |
nsLayoutUtils::PAINT_EXISTING_TRANSACTION);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetCriticalDisplayPortForElement(float aXPx, float aYPx,
float aWidthPx, float aHeightPx,
nsIDOMElement* aElement)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (!presShell) {
return NS_ERROR_FAILURE;
}
if (!aElement) {
return NS_ERROR_INVALID_ARG;
}
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
if (!content) {
return NS_ERROR_INVALID_ARG;
}
if (content->GetCurrentDoc() != presShell->GetDocument()) {
return NS_ERROR_INVALID_ARG;
}
nsRect displayport;
if (!nsLayoutUtils::GetDisplayPort(content, &displayport)) {
return NS_ERROR_INVALID_ARG;
}
nsRect criticalDisplayport(nsPresContext::CSSPixelsToAppUnits(aXPx),
nsPresContext::CSSPixelsToAppUnits(aYPx),
nsPresContext::CSSPixelsToAppUnits(aWidthPx),
nsPresContext::CSSPixelsToAppUnits(aHeightPx));
content->SetProperty(nsGkAtoms::CriticalDisplayPort, new nsRect(criticalDisplayport),
DestroyNsRect);
nsIFrame* rootFrame = presShell->GetRootFrame();
if (rootFrame) {
rootFrame->InvalidateFrame();
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetResolution(float aXResolution, float aYResolution)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
return presShell ? presShell->SetResolution(aXResolution, aYResolution)
: NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetResolution(float* aXResolution, float* aYResolution)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (presShell) {
*aXResolution = presShell->GetXResolution();
*aYResolution = presShell->GetYResolution();
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetIsFirstPaint(bool aIsFirstPaint)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (presShell) {
presShell->SetIsFirstPaint(aIsFirstPaint);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIsFirstPaint(bool *aIsFirstPaint)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (presShell) {
*aIsFirstPaint = presShell->GetIsFirstPaint();
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPresShellId(uint32_t *aPresShellId)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (presShell) {
*aPresShellId = presShell->GetPresShellId();
return NS_OK;
}
return NS_ERROR_FAILURE;
}
/* static */
mozilla::widget::Modifiers
nsDOMWindowUtils::GetWidgetModifiers(int32_t aModifiers)
{
widget::Modifiers result = 0;
if (aModifiers & nsIDOMWindowUtils::MODIFIER_SHIFT) {
result |= widget::MODIFIER_SHIFT;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_CONTROL) {
result |= widget::MODIFIER_CONTROL;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_ALT) {
result |= widget::MODIFIER_ALT;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_META) {
result |= widget::MODIFIER_META;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_ALTGRAPH) {
result |= widget::MODIFIER_ALTGRAPH;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_CAPSLOCK) {
result |= widget::MODIFIER_CAPSLOCK;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_FN) {
result |= widget::MODIFIER_FN;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_NUMLOCK) {
result |= widget::MODIFIER_NUMLOCK;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_SCROLLLOCK) {
result |= widget::MODIFIER_SCROLLLOCK;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_SYMBOLLOCK) {
result |= widget::MODIFIER_SYMBOLLOCK;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_OS) {
result |= widget::MODIFIER_OS;
}
return result;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEvent(const nsAString& aType,
float aX,
float aY,
int32_t aButton,
int32_t aClickCount,
int32_t aModifiers,
bool aIgnoreRootScrollFrame,
float aPressure,
unsigned short aInputSourceArg,
bool *aPreventDefault)
{
return SendMouseEventCommon(aType, aX, aY, aButton, aClickCount, aModifiers,
aIgnoreRootScrollFrame, aPressure,
aInputSourceArg, false, aPreventDefault);
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEventToWindow(const nsAString& aType,
float aX,
float aY,
int32_t aButton,
int32_t aClickCount,
int32_t aModifiers,
bool aIgnoreRootScrollFrame,
float aPressure,
unsigned short aInputSourceArg)
{
PROFILER_LABEL("nsDOMWindowUtils", "SendMouseEventToWindow");
return SendMouseEventCommon(aType, aX, aY, aButton, aClickCount, aModifiers,
aIgnoreRootScrollFrame, aPressure,
aInputSourceArg, true, nullptr);
}
static nsIntPoint
ToWidgetPoint(float aX, float aY, const nsPoint& aOffset,
nsPresContext* aPresContext)
{
double appPerDev = aPresContext->AppUnitsPerDevPixel();
nscoord appPerCSS = nsPresContext::AppUnitsPerCSSPixel();
return nsIntPoint(NSToIntRound((aX*appPerCSS + aOffset.x)/appPerDev),
NSToIntRound((aY*appPerCSS + aOffset.y)/appPerDev));
}
static inline int16_t
GetButtonsFlagForButton(int32_t aButton)
{
switch (aButton) {
case nsMouseEvent::eLeftButton:
return nsMouseEvent::eLeftButtonFlag;
case nsMouseEvent::eMiddleButton:
return nsMouseEvent::eMiddleButtonFlag;
case nsMouseEvent::eRightButton:
return nsMouseEvent::eRightButtonFlag;
case 4:
return nsMouseEvent::e4thButtonFlag;
case 5:
return nsMouseEvent::e5thButtonFlag;
default:
NS_ERROR("Button not known.");
return 0;
}
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEventCommon(const nsAString& aType,
float aX,
float aY,
int32_t aButton,
int32_t aClickCount,
int32_t aModifiers,
bool aIgnoreRootScrollFrame,
float aPressure,
unsigned short aInputSourceArg,
bool aToWindow,
bool *aPreventDefault)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsPoint offset;
nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
if (!widget)
return NS_ERROR_FAILURE;
int32_t msg;
bool contextMenuKey = false;
if (aType.EqualsLiteral("mousedown"))
msg = NS_MOUSE_BUTTON_DOWN;
else if (aType.EqualsLiteral("mouseup"))
msg = NS_MOUSE_BUTTON_UP;
else if (aType.EqualsLiteral("mousemove"))
msg = NS_MOUSE_MOVE;
else if (aType.EqualsLiteral("mouseover"))
msg = NS_MOUSE_ENTER;
else if (aType.EqualsLiteral("mouseout"))
msg = NS_MOUSE_EXIT;
else if (aType.EqualsLiteral("contextmenu")) {
msg = NS_CONTEXTMENU;
contextMenuKey = (aButton == 0);
} else if (aType.EqualsLiteral("MozMouseHittest"))
msg = NS_MOUSE_MOZHITTEST;
else
return NS_ERROR_FAILURE;
if (aInputSourceArg == nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN) {
aInputSourceArg = nsIDOMMouseEvent::MOZ_SOURCE_MOUSE;
}
nsMouseEvent event(true, msg, widget, nsMouseEvent::eReal,
contextMenuKey ?
nsMouseEvent::eContextMenuKey : nsMouseEvent::eNormal);
event.modifiers = GetWidgetModifiers(aModifiers);
event.button = aButton;
event.buttons = GetButtonsFlagForButton(aButton);
event.widget = widget;
event.pressure = aPressure;
event.inputSource = aInputSourceArg;
event.clickCount = aClickCount;
event.time = PR_IntervalNow();
event.mFlags.mIsSynthesizedForTests = true;
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_ERROR_FAILURE;
event.refPoint = ToWidgetPoint(aX, aY, offset, presContext);
event.ignoreRootScrollFrame = aIgnoreRootScrollFrame;
nsEventStatus status;
if (aToWindow) {
nsCOMPtr<nsIPresShell> presShell = presContext->PresShell();
if (!presShell)
return NS_ERROR_FAILURE;
nsViewManager* viewManager = presShell->GetViewManager();
if (!viewManager)
return NS_ERROR_FAILURE;
nsView* view = viewManager->GetRootView();
if (!view)
return NS_ERROR_FAILURE;
status = nsEventStatus_eIgnore;
return presShell->HandleEvent(view->GetFrame(), &event, false, &status);
}
nsresult rv = widget->DispatchEvent(&event, status);
*aPreventDefault = (status == nsEventStatus_eConsumeNoDefault);
return rv;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendWheelEvent(float aX,
float aY,
double aDeltaX,
double aDeltaY,
double aDeltaZ,
uint32_t aDeltaMode,
int32_t aModifiers,
int32_t aLineOrPageDeltaX,
int32_t aLineOrPageDeltaY,
uint32_t aOptions)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsPoint offset;
nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
if (!widget) {
return NS_ERROR_NULL_POINTER;
}
widget::WheelEvent wheelEvent(true, NS_WHEEL_WHEEL, widget);
wheelEvent.modifiers = GetWidgetModifiers(aModifiers);
wheelEvent.deltaX = aDeltaX;
wheelEvent.deltaY = aDeltaY;
wheelEvent.deltaZ = aDeltaZ;
wheelEvent.deltaMode = aDeltaMode;
wheelEvent.isMomentum =
(aOptions & WHEEL_EVENT_CAUSED_BY_MOMENTUM) != 0;
wheelEvent.isPixelOnlyDevice =
(aOptions & WHEEL_EVENT_CAUSED_BY_PIXEL_ONLY_DEVICE) != 0;
NS_ENSURE_TRUE(
!wheelEvent.isPixelOnlyDevice ||
aDeltaMode == nsIDOMWheelEvent::DOM_DELTA_PIXEL,
NS_ERROR_INVALID_ARG);
wheelEvent.customizedByUserPrefs =
(aOptions & WHEEL_EVENT_CUSTOMIZED_BY_USER_PREFS) != 0;
wheelEvent.lineOrPageDeltaX = aLineOrPageDeltaX;
wheelEvent.lineOrPageDeltaY = aLineOrPageDeltaY;
wheelEvent.widget = widget;
wheelEvent.time = PR_Now() / 1000;
nsPresContext* presContext = GetPresContext();
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
wheelEvent.refPoint = ToWidgetPoint(aX, aY, offset, presContext);
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&wheelEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
bool failedX = false;
if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_X_ZERO) &&
wheelEvent.overflowDeltaX != 0) {
failedX = true;
}
if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_X_POSITIVE) &&
wheelEvent.overflowDeltaX <= 0) {
failedX = true;
}
if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_X_NEGATIVE) &&
wheelEvent.overflowDeltaX >= 0) {
failedX = true;
}
bool failedY = false;
if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_Y_ZERO) &&
wheelEvent.overflowDeltaY != 0) {
failedY = true;
}
if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_Y_POSITIVE) &&
wheelEvent.overflowDeltaY <= 0) {
failedY = true;
}
if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_Y_NEGATIVE) &&
wheelEvent.overflowDeltaY >= 0) {
failedY = true;
}
#ifdef DEBUG
if (failedX) {
nsPrintfCString debugMsg("SendWheelEvent(): unexpected overflowDeltaX: %f",
wheelEvent.overflowDeltaX);
NS_WARNING(debugMsg.get());
}
if (failedY) {
nsPrintfCString debugMsg("SendWheelEvent(): unexpected overflowDeltaY: %f",
wheelEvent.overflowDeltaY);
NS_WARNING(debugMsg.get());
}
#endif
return (!failedX && !failedY) ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendTouchEvent(const nsAString& aType,
uint32_t *aIdentifiers,
int32_t *aXs,
int32_t *aYs,
uint32_t *aRxs,
uint32_t *aRys,
float *aRotationAngles,
float *aForces,
uint32_t aCount,
int32_t aModifiers,
bool aIgnoreRootScrollFrame,
bool *aPreventDefault)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsPoint offset;
nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
if (!widget) {
return NS_ERROR_NULL_POINTER;
}
int32_t msg;
if (aType.EqualsLiteral("touchstart")) {
msg = NS_TOUCH_START;
} else if (aType.EqualsLiteral("touchmove")) {
msg = NS_TOUCH_MOVE;
} else if (aType.EqualsLiteral("touchend")) {
msg = NS_TOUCH_END;
} else if (aType.EqualsLiteral("touchcancel")) {
msg = NS_TOUCH_CANCEL;
} else {
return NS_ERROR_UNEXPECTED;
}
nsTouchEvent event(true, msg, widget);
event.modifiers = GetWidgetModifiers(aModifiers);
event.widget = widget;
event.time = PR_Now();
nsPresContext* presContext = GetPresContext();
if (!presContext) {
return NS_ERROR_FAILURE;
}
event.touches.SetCapacity(aCount);
for (uint32_t i = 0; i < aCount; ++i) {
nsIntPoint pt = ToWidgetPoint(aXs[i], aYs[i], offset, presContext);
nsRefPtr<Touch> t = new Touch(aIdentifiers[i],
pt,
nsIntPoint(aRxs[i], aRys[i]),
aRotationAngles[i],
aForces[i]);
event.touches.AppendElement(t);
}
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&event, status);
*aPreventDefault = (status == nsEventStatus_eConsumeNoDefault);
return rv;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendKeyEvent(const nsAString& aType,
int32_t aKeyCode,
int32_t aCharCode,
int32_t aModifiers,
uint32_t aAdditionalFlags,
bool* aDefaultActionTaken)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
int32_t msg;
if (aType.EqualsLiteral("keydown"))
msg = NS_KEY_DOWN;
else if (aType.EqualsLiteral("keyup"))
msg = NS_KEY_UP;
else if (aType.EqualsLiteral("keypress"))
msg = NS_KEY_PRESS;
else
return NS_ERROR_FAILURE;
nsKeyEvent event(true, msg, widget);
event.modifiers = GetWidgetModifiers(aModifiers);
if (msg == NS_KEY_PRESS) {
event.keyCode = aCharCode ? 0 : aKeyCode;
event.charCode = aCharCode;
} else {
event.keyCode = aKeyCode;
event.charCode = 0;
}
uint32_t locationFlag = (aAdditionalFlags &
(KEY_FLAG_LOCATION_STANDARD | KEY_FLAG_LOCATION_LEFT |
KEY_FLAG_LOCATION_RIGHT | KEY_FLAG_LOCATION_NUMPAD |
KEY_FLAG_LOCATION_MOBILE | KEY_FLAG_LOCATION_JOYSTICK));
switch (locationFlag) {
case KEY_FLAG_LOCATION_STANDARD:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD;
break;
case KEY_FLAG_LOCATION_LEFT:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_LEFT;
break;
case KEY_FLAG_LOCATION_RIGHT:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_RIGHT;
break;
case KEY_FLAG_LOCATION_NUMPAD:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
break;
case KEY_FLAG_LOCATION_MOBILE:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_MOBILE;
break;
case KEY_FLAG_LOCATION_JOYSTICK:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_JOYSTICK;
break;
default:
if (locationFlag != 0) {
return NS_ERROR_INVALID_ARG;
}
// If location flag isn't set, choose the location from keycode.
switch (aKeyCode) {
case nsIDOMKeyEvent::DOM_VK_NUMPAD0:
case nsIDOMKeyEvent::DOM_VK_NUMPAD1:
case nsIDOMKeyEvent::DOM_VK_NUMPAD2:
case nsIDOMKeyEvent::DOM_VK_NUMPAD3:
case nsIDOMKeyEvent::DOM_VK_NUMPAD4:
case nsIDOMKeyEvent::DOM_VK_NUMPAD5:
case nsIDOMKeyEvent::DOM_VK_NUMPAD6:
case nsIDOMKeyEvent::DOM_VK_NUMPAD7:
case nsIDOMKeyEvent::DOM_VK_NUMPAD8:
case nsIDOMKeyEvent::DOM_VK_NUMPAD9:
case nsIDOMKeyEvent::DOM_VK_MULTIPLY:
case nsIDOMKeyEvent::DOM_VK_ADD:
case nsIDOMKeyEvent::DOM_VK_SEPARATOR:
case nsIDOMKeyEvent::DOM_VK_SUBTRACT:
case nsIDOMKeyEvent::DOM_VK_DECIMAL:
case nsIDOMKeyEvent::DOM_VK_DIVIDE:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
break;
case nsIDOMKeyEvent::DOM_VK_SHIFT:
case nsIDOMKeyEvent::DOM_VK_CONTROL:
case nsIDOMKeyEvent::DOM_VK_ALT:
case nsIDOMKeyEvent::DOM_VK_META:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_LEFT;
break;
default:
event.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD;
break;
}
break;
}
event.refPoint.x = event.refPoint.y = 0;
event.time = PR_IntervalNow();
event.mFlags.mIsSynthesizedForTests = true;
if (aAdditionalFlags & KEY_FLAG_PREVENT_DEFAULT) {
event.mFlags.mDefaultPrevented = true;
}
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&event, status);
NS_ENSURE_SUCCESS(rv, rv);
*aDefaultActionTaken = (status != nsEventStatus_eConsumeNoDefault);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendNativeKeyEvent(int32_t aNativeKeyboardLayout,
int32_t aNativeKeyCode,
int32_t aModifiers,
const nsAString& aCharacters,
const nsAString& aUnmodifiedCharacters)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
return widget->SynthesizeNativeKeyEvent(aNativeKeyboardLayout, aNativeKeyCode,
aModifiers, aCharacters, aUnmodifiedCharacters);
}
NS_IMETHODIMP
nsDOMWindowUtils::SendNativeMouseEvent(int32_t aScreenX,
int32_t aScreenY,
int32_t aNativeMessage,
int32_t aModifierFlags,
nsIDOMElement* aElement)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidgetForElement(aElement);
if (!widget)
return NS_ERROR_FAILURE;
return widget->SynthesizeNativeMouseEvent(nsIntPoint(aScreenX, aScreenY),
aNativeMessage, aModifierFlags);
}
NS_IMETHODIMP
nsDOMWindowUtils::SendNativeMouseScrollEvent(int32_t aScreenX,
int32_t aScreenY,
uint32_t aNativeMessage,
double aDeltaX,
double aDeltaY,
double aDeltaZ,
uint32_t aModifierFlags,
uint32_t aAdditionalFlags,
nsIDOMElement* aElement)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidgetForElement(aElement);
if (!widget) {
return NS_ERROR_FAILURE;
}
return widget->SynthesizeNativeMouseScrollEvent(nsIntPoint(aScreenX,
aScreenY),
aNativeMessage,
aDeltaX, aDeltaY, aDeltaZ,
aModifierFlags,
aAdditionalFlags);
}
NS_IMETHODIMP
nsDOMWindowUtils::ActivateNativeMenuItemAt(const nsAString& indexString)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
return widget->ActivateNativeMenuItemAt(indexString);
}
NS_IMETHODIMP
nsDOMWindowUtils::ForceUpdateNativeMenuAt(const nsAString& indexString)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
return widget->ForceUpdateNativeMenuAt(indexString);
}
nsIWidget*
nsDOMWindowUtils::GetWidget(nsPoint* aOffset)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (window) {
nsIDocShell *docShell = window->GetDocShell();
if (docShell) {
nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
if (presShell) {
nsIFrame* frame = presShell->GetRootFrame();
if (frame)
return frame->GetView()->GetNearestWidget(aOffset);
}
}
}
return nullptr;
}
nsIWidget*
nsDOMWindowUtils::GetWidgetForElement(nsIDOMElement* aElement)
{
if (!aElement)
return GetWidget();
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
nsIDocument* doc = content->GetCurrentDoc();
nsIPresShell* presShell = doc ? doc->GetShell() : nullptr;
if (presShell) {
nsIFrame* frame = content->GetPrimaryFrame();
if (!frame) {
frame = presShell->GetRootFrame();
}
if (frame)
return frame->GetNearestWidget();
}
return nullptr;
}
NS_IMETHODIMP
nsDOMWindowUtils::Focus(nsIDOMElement* aElement)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIDOMWindow> window = do_QueryReferent(mWindow);
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
if (aElement)
fm->SetFocus(aElement, 0);
else
fm->ClearFocus(window);
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GarbageCollect(nsICycleCollectorListener *aListener,
int32_t aExtraForgetSkippableCalls)
{
PROFILER_LABEL("GC", "GarbageCollect");
// Always permit this in debug builds.
#ifndef DEBUG
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
#endif
nsJSContext::GarbageCollectNow(JS::gcreason::DOM_UTILS);
nsJSContext::CycleCollectNow(aListener, aExtraForgetSkippableCalls);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::CycleCollect(nsICycleCollectorListener *aListener,
int32_t aExtraForgetSkippableCalls)
{
// Always permit this in debug builds.
#ifndef DEBUG
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
#endif
nsJSContext::CycleCollectNow(aListener, aExtraForgetSkippableCalls);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendSimpleGestureEvent(const nsAString& aType,
float aX,
float aY,
uint32_t aDirection,
double aDelta,
int32_t aModifiers,
uint32_t aClickCount)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsPoint offset;
nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
if (!widget)
return NS_ERROR_FAILURE;
int32_t msg;
if (aType.EqualsLiteral("MozSwipeGestureStart"))
msg = NS_SIMPLE_GESTURE_SWIPE_START;
else if (aType.EqualsLiteral("MozSwipeGestureUpdate"))
msg = NS_SIMPLE_GESTURE_SWIPE_UPDATE;
else if (aType.EqualsLiteral("MozSwipeGestureEnd"))
msg = NS_SIMPLE_GESTURE_SWIPE_END;
else if (aType.EqualsLiteral("MozSwipeGesture"))
msg = NS_SIMPLE_GESTURE_SWIPE;
else if (aType.EqualsLiteral("MozMagnifyGestureStart"))
msg = NS_SIMPLE_GESTURE_MAGNIFY_START;
else if (aType.EqualsLiteral("MozMagnifyGestureUpdate"))
msg = NS_SIMPLE_GESTURE_MAGNIFY_UPDATE;
else if (aType.EqualsLiteral("MozMagnifyGesture"))
msg = NS_SIMPLE_GESTURE_MAGNIFY;
else if (aType.EqualsLiteral("MozRotateGestureStart"))
msg = NS_SIMPLE_GESTURE_ROTATE_START;
else if (aType.EqualsLiteral("MozRotateGestureUpdate"))
msg = NS_SIMPLE_GESTURE_ROTATE_UPDATE;
else if (aType.EqualsLiteral("MozRotateGesture"))
msg = NS_SIMPLE_GESTURE_ROTATE;
else if (aType.EqualsLiteral("MozTapGesture"))
msg = NS_SIMPLE_GESTURE_TAP;
else if (aType.EqualsLiteral("MozPressTapGesture"))
msg = NS_SIMPLE_GESTURE_PRESSTAP;
else if (aType.EqualsLiteral("MozEdgeUIStarted"))
msg = NS_SIMPLE_GESTURE_EDGE_STARTED;
else if (aType.EqualsLiteral("MozEdgeUICanceled"))
msg = NS_SIMPLE_GESTURE_EDGE_CANCELED;
else if (aType.EqualsLiteral("MozEdgeUICompleted"))
msg = NS_SIMPLE_GESTURE_EDGE_COMPLETED;
else
return NS_ERROR_FAILURE;
nsSimpleGestureEvent event(true, msg, widget, aDirection, aDelta);
event.modifiers = GetWidgetModifiers(aModifiers);
event.clickCount = aClickCount;
event.time = PR_IntervalNow();
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_ERROR_FAILURE;
event.refPoint = ToWidgetPoint(aX, aY, offset, presContext);
nsEventStatus status;
return widget->DispatchEvent(&event, status);
}
NS_IMETHODIMP
nsDOMWindowUtils::ElementFromPoint(float aX, float aY,
bool aIgnoreRootScrollFrame,
bool aFlushLayout,
nsIDOMElement** aReturn)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
Element* el =
doc->ElementFromPointHelper(aX, aY, aIgnoreRootScrollFrame, aFlushLayout);
nsCOMPtr<nsIDOMElement> retval = do_QueryInterface(el);
retval.forget(aReturn);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::NodesFromRect(float aX, float aY,
float aTopSize, float aRightSize,
float aBottomSize, float aLeftSize,
bool aIgnoreRootScrollFrame,
bool aFlushLayout,
nsIDOMNodeList** aReturn)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
return doc->NodesFromRectHelper(aX, aY, aTopSize, aRightSize, aBottomSize, aLeftSize,
aIgnoreRootScrollFrame, aFlushLayout, aReturn);
}
static already_AddRefed<gfxImageSurface>
CanvasToImageSurface(nsIDOMHTMLCanvasElement* aCanvas)
{
nsCOMPtr<nsINode> node = do_QueryInterface(aCanvas);
if (!node) {
return nullptr;
}
NS_ABORT_IF_FALSE(node->IsElement(),
"An nsINode that implements nsIDOMHTMLCanvasElement should "
"be an element.");
nsLayoutUtils::SurfaceFromElementResult result =
nsLayoutUtils::SurfaceFromElement(node->AsElement(),
nsLayoutUtils::SFE_WANT_IMAGE_SURFACE);
return result.mSurface.forget().downcast<gfxImageSurface>();
}
NS_IMETHODIMP
nsDOMWindowUtils::CompareCanvases(nsIDOMHTMLCanvasElement *aCanvas1,
nsIDOMHTMLCanvasElement *aCanvas2,
uint32_t* aMaxDifference,
uint32_t* retVal)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (aCanvas1 == nullptr ||
aCanvas2 == nullptr ||
retVal == nullptr)
return NS_ERROR_FAILURE;
nsRefPtr<gfxImageSurface> img1 = CanvasToImageSurface(aCanvas1);
nsRefPtr<gfxImageSurface> img2 = CanvasToImageSurface(aCanvas2);
if (img1 == nullptr || img2 == nullptr ||
img1->GetSize() != img2->GetSize() ||
img1->Stride() != img2->Stride())
return NS_ERROR_FAILURE;
int v;
gfxIntSize size = img1->GetSize();
uint32_t stride = img1->Stride();
// we can optimize for the common all-pass case
if (stride == (uint32_t) size.width * 4) {
v = memcmp(img1->Data(), img2->Data(), size.width * size.height * 4);
if (v == 0) {
if (aMaxDifference)
*aMaxDifference = 0;
*retVal = 0;
return NS_OK;
}
}
uint32_t dc = 0;
uint32_t different = 0;
for (int j = 0; j < size.height; j++) {
unsigned char *p1 = img1->Data() + j*stride;
unsigned char *p2 = img2->Data() + j*stride;
v = memcmp(p1, p2, stride);
if (v) {
for (int i = 0; i < size.width; i++) {
if (*(uint32_t*) p1 != *(uint32_t*) p2) {
different++;
dc = std::max((uint32_t)abs(p1[0] - p2[0]), dc);
dc = std::max((uint32_t)abs(p1[1] - p2[1]), dc);
dc = std::max((uint32_t)abs(p1[2] - p2[2]), dc);
dc = std::max((uint32_t)abs(p1[3] - p2[3]), dc);
}
p1 += 4;
p2 += 4;
}
}
}
if (aMaxDifference)
*aMaxDifference = dc;
*retVal = different;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIsMozAfterPaintPending(bool *aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aResult);
*aResult = false;
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_OK;
*aResult = presContext->IsDOMPaintEventPending();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::ClearMozAfterPaintEvents()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_OK;
presContext->ClearMozAfterPaintEvents();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::DisableNonTestMouseEvents(bool aDisable)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsIDocShell *docShell = window->GetDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
presShell->DisableNonTestMouseEvents(aDisable);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SuppressEventHandling(bool aSuppress)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
if (aSuppress) {
doc->SuppressEventHandling();
} else {
doc->UnsuppressEventHandlingAndFireEvents(true);
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetScrollXY(bool aFlushLayout, int32_t* aScrollX, int32_t* aScrollY)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
if (aFlushLayout) {
doc->FlushPendingNotifications(Flush_Layout);
}
nsPoint scrollPos(0,0);
nsIPresShell *presShell = doc->GetShell();
if (presShell) {
nsIScrollableFrame* sf = presShell->GetRootScrollFrameAsScrollable();
if (sf) {
scrollPos = sf->GetScrollPosition();
}
}
*aScrollX = nsPresContext::AppUnitsToIntCSSPixels(scrollPos.x);
*aScrollY = nsPresContext::AppUnitsToIntCSSPixels(scrollPos.y);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetScrollbarSize(bool aFlushLayout, int32_t* aWidth,
int32_t* aHeight)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aWidth = 0;
*aHeight = 0;
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
if (aFlushLayout) {
doc->FlushPendingNotifications(Flush_Layout);
}
nsIPresShell* presShell = doc->GetShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_NOT_AVAILABLE);
nsIScrollableFrame* scrollFrame = presShell->GetRootScrollFrameAsScrollable();
NS_ENSURE_TRUE(scrollFrame, NS_OK);
nsMargin sizes = scrollFrame->GetActualScrollbarSizes();
*aWidth = nsPresContext::AppUnitsToIntCSSPixels(sizes.LeftRight());
*aHeight = nsPresContext::AppUnitsToIntCSSPixels(sizes.TopBottom());
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetBoundsWithoutFlushing(nsIDOMElement *aElement,
nsIDOMClientRect** aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsresult rv;
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<nsClientRect> rect = new nsClientRect(window);
nsIFrame* frame = content->GetPrimaryFrame();
if (frame) {
nsRect r = nsLayoutUtils::GetAllInFlowRectsUnion(frame,
nsLayoutUtils::GetContainingBlockForClientRect(frame),
nsLayoutUtils::RECTS_ACCOUNT_FOR_TRANSFORMS);
rect->SetLayoutRect(r);
}
rect.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetRootBounds(nsIDOMClientRect** aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
nsRect bounds(0, 0, 0, 0);
nsIPresShell* presShell = doc->GetShell();
if (presShell) {
nsIScrollableFrame* sf = presShell->GetRootScrollFrameAsScrollable();
if (sf) {
bounds = sf->GetScrollRange();
bounds.width += sf->GetScrollPortRect().width;
bounds.height += sf->GetScrollPortRect().height;
} else if (presShell->GetRootFrame()) {
bounds = presShell->GetRootFrame()->GetRect();
}
}
nsRefPtr<nsClientRect> rect = new nsClientRect(window);
rect->SetRect(nsPresContext::AppUnitsToFloatCSSPixels(bounds.x),
nsPresContext::AppUnitsToFloatCSSPixels(bounds.y),
nsPresContext::AppUnitsToFloatCSSPixels(bounds.width),
nsPresContext::AppUnitsToFloatCSSPixels(bounds.height));
rect.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIMEIsOpen(bool *aState)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aState);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
// Open state should not be available when IME is not enabled.
InputContext context = widget->GetInputContext();
if (context.mIMEState.mEnabled != IMEState::ENABLED) {
return NS_ERROR_NOT_AVAILABLE;
}
if (context.mIMEState.mOpen == IMEState::OPEN_STATE_NOT_SUPPORTED) {
return NS_ERROR_NOT_IMPLEMENTED;
}
*aState = (context.mIMEState.mOpen == IMEState::OPEN);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIMEStatus(uint32_t *aState)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aState);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
InputContext context = widget->GetInputContext();
*aState = static_cast<uint32_t>(context.mIMEState.mEnabled);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFocusedInputType(char** aType)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aType);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
return NS_ERROR_FAILURE;
}
InputContext context = widget->GetInputContext();
*aType = ToNewCString(context.mHTMLInputType);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::FindElementWithViewId(nsViewID aID,
nsIDOMElement** aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (aID == FrameMetrics::ROOT_SCROLL_ID) {
nsPresContext* presContext = GetPresContext();
if (!presContext) {
return NS_ERROR_NOT_AVAILABLE;
}
nsIDocument* document = presContext->Document();
Element* rootElement = document->GetRootElement();
if (!rootElement) {
return NS_ERROR_NOT_AVAILABLE;
}
CallQueryInterface(rootElement, aResult);
return NS_OK;
}
nsRefPtr<nsIContent> content = nsLayoutUtils::FindContentFor(aID);
return content ? CallQueryInterface(content, aResult) : NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetScreenPixelsPerCSSPixel(float* aScreenPixels)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
return window->GetDevicePixelRatio(aScreenPixels);
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFullZoom(float* aFullZoom)
{
*aFullZoom = 1.0f;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsPresContext* presContext = GetPresContext();
if (!presContext) {
return NS_OK;
}
*aFullZoom = presContext->DeviceContext()->GetPixelScale();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::DispatchDOMEventViaPresShell(nsIDOMNode* aTarget,
nsIDOMEvent* aEvent,
bool aTrusted,
bool* aRetVal)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_STATE(aEvent);
aEvent->SetTrusted(aTrusted);
nsEvent* internalEvent = aEvent->GetInternalNSEvent();
NS_ENSURE_STATE(internalEvent);
nsCOMPtr<nsIContent> content = do_QueryInterface(aTarget);
NS_ENSURE_STATE(content);
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (content->OwnerDoc()->GetWindow() != window) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
nsCOMPtr<nsIDocument> targetDoc = content->GetCurrentDoc();
NS_ENSURE_STATE(targetDoc);
nsRefPtr<nsIPresShell> targetShell = targetDoc->GetShell();
NS_ENSURE_STATE(targetShell);
targetDoc->FlushPendingNotifications(Flush_Layout);
nsEventStatus status = nsEventStatus_eIgnore;
targetShell->HandleEventWithTarget(internalEvent, nullptr, content, &status);
*aRetVal = (status != nsEventStatus_eConsumeNoDefault);
return NS_OK;
}
static void
InitEvent(nsGUIEvent &aEvent, nsIntPoint *aPt = nullptr)
{
if (aPt) {
aEvent.refPoint = *aPt;
}
aEvent.time = PR_IntervalNow();
}
NS_IMETHODIMP
nsDOMWindowUtils::SendCompositionEvent(const nsAString& aType,
const nsAString& aData,
const nsAString& aLocale)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
return NS_ERROR_FAILURE;
}
uint32_t msg;
if (aType.EqualsLiteral("compositionstart")) {
msg = NS_COMPOSITION_START;
} else if (aType.EqualsLiteral("compositionend")) {
msg = NS_COMPOSITION_END;
} else if (aType.EqualsLiteral("compositionupdate")) {
msg = NS_COMPOSITION_UPDATE;
} else {
return NS_ERROR_FAILURE;
}
nsCompositionEvent compositionEvent(true, msg, widget);
InitEvent(compositionEvent);
if (msg != NS_COMPOSITION_START) {
compositionEvent.data = aData;
}
compositionEvent.mFlags.mIsSynthesizedForTests = true;
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&compositionEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
static void
AppendClause(int32_t aClauseLength, uint32_t aClauseAttr,
nsTArray<nsTextRange>* aRanges)
{
NS_PRECONDITION(aRanges, "aRange is null");
if (aClauseLength == 0) {
return;
}
nsTextRange range;
range.mStartOffset = aRanges->Length() == 0 ? 0 :
aRanges->ElementAt(aRanges->Length() - 1).mEndOffset + 1;
range.mEndOffset = range.mStartOffset + aClauseLength;
NS_ASSERTION(range.mStartOffset <= range.mEndOffset, "range is invalid");
NS_PRECONDITION(aClauseAttr == NS_TEXTRANGE_RAWINPUT ||
aClauseAttr == NS_TEXTRANGE_SELECTEDRAWTEXT ||
aClauseAttr == NS_TEXTRANGE_CONVERTEDTEXT ||
aClauseAttr == NS_TEXTRANGE_SELECTEDCONVERTEDTEXT,
"aClauseAttr is invalid value");
range.mRangeType = aClauseAttr;
aRanges->AppendElement(range);
}
NS_IMETHODIMP
nsDOMWindowUtils::SendTextEvent(const nsAString& aCompositionString,
int32_t aFirstClauseLength,
uint32_t aFirstClauseAttr,
int32_t aSecondClauseLength,
uint32_t aSecondClauseAttr,
int32_t aThirdClauseLength,
uint32_t aThirdClauseAttr,
int32_t aCaretStart,
int32_t aCaretLength)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
return NS_ERROR_FAILURE;
}
nsTextEvent textEvent(true, NS_TEXT_TEXT, widget);
InitEvent(textEvent);
nsAutoTArray<nsTextRange, 4> textRanges;
NS_ENSURE_TRUE(aFirstClauseLength >= 0, NS_ERROR_INVALID_ARG);
NS_ENSURE_TRUE(aSecondClauseLength >= 0, NS_ERROR_INVALID_ARG);
NS_ENSURE_TRUE(aThirdClauseLength >= 0, NS_ERROR_INVALID_ARG);
AppendClause(aFirstClauseLength, aFirstClauseAttr, &textRanges);
AppendClause(aSecondClauseLength, aSecondClauseAttr, &textRanges);
AppendClause(aThirdClauseLength, aThirdClauseAttr, &textRanges);
int32_t len = aFirstClauseLength + aSecondClauseLength + aThirdClauseLength;
NS_ENSURE_TRUE(len == 0 || uint32_t(len) == aCompositionString.Length(),
NS_ERROR_FAILURE);
if (aCaretStart >= 0) {
nsTextRange range;
range.mStartOffset = aCaretStart;
range.mEndOffset = range.mStartOffset + aCaretLength;
range.mRangeType = NS_TEXTRANGE_CARETPOSITION;
textRanges.AppendElement(range);
}
textEvent.theText = aCompositionString;
textEvent.rangeCount = textRanges.Length();
textEvent.rangeArray = textRanges.Elements();
textEvent.mFlags.mIsSynthesizedForTests = true;
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&textEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendQueryContentEvent(uint32_t aType,
uint32_t aOffset, uint32_t aLength,
int32_t aX, int32_t aY,
nsIQueryContentEventResult **aResult)
{
*aResult = nullptr;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsIDocShell *docShell = window->GetDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
nsPresContext* presContext = presShell->GetPresContext();
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
return NS_ERROR_FAILURE;
}
if (aType != NS_QUERY_SELECTED_TEXT &&
aType != NS_QUERY_TEXT_CONTENT &&
aType != NS_QUERY_CARET_RECT &&
aType != NS_QUERY_TEXT_RECT &&
aType != NS_QUERY_EDITOR_RECT &&
aType != NS_QUERY_CHARACTER_AT_POINT) {
return NS_ERROR_INVALID_ARG;
}
nsCOMPtr<nsIWidget> targetWidget = widget;
nsIntPoint pt(aX, aY);
if (aType == QUERY_CHARACTER_AT_POINT) {
// Looking for the widget at the point.
nsQueryContentEvent dummyEvent(true, NS_QUERY_CONTENT_STATE, widget);
InitEvent(dummyEvent, &pt);
nsIFrame* popupFrame =
nsLayoutUtils::GetPopupFrameForEventCoordinates(presContext->GetRootPresContext(), &dummyEvent);
nsIntRect widgetBounds;
nsresult rv = widget->GetClientBounds(widgetBounds);
NS_ENSURE_SUCCESS(rv, rv);
widgetBounds.MoveTo(0, 0);
// There is no popup frame at the point and the point isn't in our widget,
// we cannot process this request.
NS_ENSURE_TRUE(popupFrame || widgetBounds.Contains(pt),
NS_ERROR_FAILURE);
// Fire the event on the widget at the point
if (popupFrame) {
targetWidget = popupFrame->GetNearestWidget();
}
}
pt += widget->WidgetToScreenOffset() - targetWidget->WidgetToScreenOffset();
nsQueryContentEvent queryEvent(true, aType, targetWidget);
InitEvent(queryEvent, &pt);
switch (aType) {
case NS_QUERY_TEXT_CONTENT:
queryEvent.InitForQueryTextContent(aOffset, aLength);
break;
case NS_QUERY_CARET_RECT:
queryEvent.InitForQueryCaretRect(aOffset);
break;
case NS_QUERY_TEXT_RECT:
queryEvent.InitForQueryTextRect(aOffset, aLength);
break;
}
nsEventStatus status;
nsresult rv = targetWidget->DispatchEvent(&queryEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
nsQueryContentEventResult* result = new nsQueryContentEventResult();
NS_ENSURE_TRUE(result, NS_ERROR_OUT_OF_MEMORY);
result->SetEventResult(widget, queryEvent);
NS_ADDREF(*aResult = result);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendSelectionSetEvent(uint32_t aOffset,
uint32_t aLength,
bool aReverse,
bool *aResult)
{
*aResult = false;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
return NS_ERROR_FAILURE;
}
nsSelectionEvent selectionEvent(true, NS_SELECTION_SET, widget);
InitEvent(selectionEvent);
selectionEvent.mOffset = aOffset;
selectionEvent.mLength = aLength;
selectionEvent.mReversed = aReverse;
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&selectionEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
*aResult = selectionEvent.mSucceeded;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendContentCommandEvent(const nsAString& aType,
nsITransferable * aTransferable)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
int32_t msg;
if (aType.EqualsLiteral("cut"))
msg = NS_CONTENT_COMMAND_CUT;
else if (aType.EqualsLiteral("copy"))
msg = NS_CONTENT_COMMAND_COPY;
else if (aType.EqualsLiteral("paste"))
msg = NS_CONTENT_COMMAND_PASTE;
else if (aType.EqualsLiteral("delete"))
msg = NS_CONTENT_COMMAND_DELETE;
else if (aType.EqualsLiteral("undo"))
msg = NS_CONTENT_COMMAND_UNDO;
else if (aType.EqualsLiteral("redo"))
msg = NS_CONTENT_COMMAND_REDO;
else if (aType.EqualsLiteral("pasteTransferable"))
msg = NS_CONTENT_COMMAND_PASTE_TRANSFERABLE;
else
return NS_ERROR_FAILURE;
nsContentCommandEvent event(true, msg, widget);
if (msg == NS_CONTENT_COMMAND_PASTE_TRANSFERABLE) {
event.mTransferable = aTransferable;
}
nsEventStatus status;
return widget->DispatchEvent(&event, status);
}
NS_IMETHODIMP
nsDOMWindowUtils::GetClassName(const JS::Value& aObject, JSContext* aCx, char** aName)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// Our argument must be a non-null object.
if (JSVAL_IS_PRIMITIVE(aObject)) {
return NS_ERROR_XPC_BAD_CONVERT_JS;
}
*aName = NS_strdup(JS_GetClass(JSVAL_TO_OBJECT(aObject))->name);
NS_ABORT_IF_FALSE(*aName, "NS_strdup should be infallible.");
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetVisitedDependentComputedStyle(
nsIDOMElement *aElement, const nsAString& aPseudoElement,
const nsAString& aPropertyName, nsAString& aResult)
{
aResult.Truncate();
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDOMCSSStyleDeclaration> decl;
nsresult rv =
window->GetComputedStyle(aElement, aPseudoElement, getter_AddRefs(decl));
NS_ENSURE_SUCCESS(rv, rv);
static_cast<nsComputedDOMStyle*>(decl.get())->SetExposeVisitedStyle(true);
rv = decl->GetPropertyValue(aPropertyName, aResult);
static_cast<nsComputedDOMStyle*>(decl.get())->SetExposeVisitedStyle(false);
return rv;
}
NS_IMETHODIMP
nsDOMWindowUtils::EnterModalState()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
window->EnterModalState();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::LeaveModalState()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
window->LeaveModalState(nullptr);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::EnterModalStateWithWindow(nsIDOMWindow **aWindow)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
*aWindow = window->EnterModalState();
NS_IF_ADDREF(*aWindow);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::LeaveModalStateWithWindow(nsIDOMWindow *aWindow)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
window->LeaveModalState(aWindow);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::IsInModalState(bool *retval)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
*retval = static_cast<nsGlobalWindow*>(window.get())->IsInModalState();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetParent(const JS::Value& aObject,
JSContext* aCx,
JS::Value* aParent)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// First argument must be an object.
if (JSVAL_IS_PRIMITIVE(aObject)) {
return NS_ERROR_XPC_BAD_CONVERT_JS;
}
JS::Rooted<JSObject*> parent(aCx, JS_GetParent(JSVAL_TO_OBJECT(aObject)));
*aParent = OBJECT_TO_JSVAL(parent);
// Outerize if necessary.
if (parent) {
if (JSObjectOp outerize = js::GetObjectClass(parent)->ext.outerObject) {
*aParent = OBJECT_TO_JSVAL(outerize(aCx, parent));
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetOuterWindowID(uint64_t *aWindowID)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
NS_ASSERTION(window->IsOuterWindow(), "How did that happen?");
*aWindowID = window->WindowID();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetCurrentInnerWindowID(uint64_t *aWindowID)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_NOT_AVAILABLE);
NS_ASSERTION(window->IsOuterWindow(), "How did that happen?");
nsGlobalWindow* inner =
static_cast<nsGlobalWindow*>(window.get())->GetCurrentInnerWindowInternal();
if (!inner) {
return NS_ERROR_NOT_AVAILABLE;
}
*aWindowID = inner->WindowID();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SuspendTimeouts()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
window->SuspendTimeouts();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::ResumeTimeouts()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
window->ResumeTimeouts();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetLayerManagerType(nsAString& aType)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager(nsIWidget::LAYER_MANAGER_PERSISTENT);
if (!mgr)
return NS_ERROR_FAILURE;
mgr->GetBackendName(aType);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetLayerManagerRemote(bool* retval)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
*retval = !!mgr->AsShadowForwarder();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StartFrameTimeRecording(uint32_t *startIndex)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(startIndex);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
*startIndex = mgr->StartFrameTimeRecording();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StopFrameTimeRecording(uint32_t startIndex,
float **paintTimes,
uint32_t *frameCount,
float **frameIntervals)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(frameCount);
NS_ENSURE_ARG_POINTER(frameIntervals);
NS_ENSURE_ARG_POINTER(paintTimes);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
nsTArray<float> tmpFrameIntervals;
nsTArray<float> tmpPaintTimes;
mgr->StopFrameTimeRecording(startIndex, tmpFrameIntervals, tmpPaintTimes);
*frameCount = tmpFrameIntervals.Length();
*frameIntervals = (float*)nsMemory::Alloc(*frameCount * sizeof(float*));
*paintTimes = (float*)nsMemory::Alloc(*frameCount * sizeof(float*));
/* copy over the frame intervals and paint times into the arrays we just allocated */
for (uint32_t i = 0; i < *frameCount; i++) {
(*frameIntervals)[i] = tmpFrameIntervals[i];
#ifndef MOZ_WIDGET_GONK
(*paintTimes)[i] = tmpPaintTimes[i];
#else
// Waiting for bug 830475 to work on B2G.
(*paintTimes)[i] = 0;
#endif
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::BeginTabSwitch()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
mgr->BeginTabSwitch();
return NS_OK;
}
static bool
ComputeAnimationValue(nsCSSProperty aProperty,
Element* aElement,
const nsAString& aInput,
nsStyleAnimation::Value& aOutput)
{
if (!nsStyleAnimation::ComputeValue(aProperty, aElement, aInput,
false, aOutput)) {
return false;
}
// This matches TransExtractComputedValue in nsTransitionManager.cpp.
if (aProperty == eCSSProperty_visibility) {
NS_ABORT_IF_FALSE(aOutput.GetUnit() == nsStyleAnimation::eUnit_Enumerated,
"unexpected unit");
aOutput.SetIntValue(aOutput.GetIntValue(),
nsStyleAnimation::eUnit_Visibility);
}
return true;
}
NS_IMETHODIMP
nsDOMWindowUtils::AdvanceTimeAndRefresh(int64_t aMilliseconds)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsRefreshDriver* driver = GetPresContext()->RefreshDriver();
driver->AdvanceTimeAndRefresh(aMilliseconds);
CompositorParent::SetTimeAndSampleAnimations(driver->MostRecentRefresh(), true);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::RestoreNormalRefresh()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsRefreshDriver* driver = GetPresContext()->RefreshDriver();
driver->RestoreNormalRefresh();
CompositorParent::SetTimeAndSampleAnimations(driver->MostRecentRefresh(), false);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIsTestControllingRefreshes(bool *aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aResult =
GetPresContext()->RefreshDriver()->IsTestControllingRefreshesEnabled();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::ComputeAnimationDistance(nsIDOMElement* aElement,
const nsAString& aProperty,
const nsAString& aValue1,
const nsAString& aValue2,
double* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsresult rv;
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement, &rv);
NS_ENSURE_SUCCESS(rv, rv);
// Convert direction-dependent properties as appropriate, e.g.,
// border-left to border-left-value.
nsCSSProperty property = nsCSSProps::LookupProperty(aProperty,
nsCSSProps::eAny);
if (property != eCSSProperty_UNKNOWN && nsCSSProps::IsShorthand(property)) {
nsCSSProperty subprop0 = *nsCSSProps::SubpropertyEntryFor(property);
if (nsCSSProps::PropHasFlags(subprop0, CSS_PROPERTY_REPORT_OTHER_NAME) &&
nsCSSProps::OtherNameFor(subprop0) == property) {
property = subprop0;
} else {
property = eCSSProperty_UNKNOWN;
}
}
NS_ABORT_IF_FALSE(property == eCSSProperty_UNKNOWN ||
!nsCSSProps::IsShorthand(property),
"should not have shorthand");
nsStyleAnimation::Value v1, v2;
if (property == eCSSProperty_UNKNOWN ||
!ComputeAnimationValue(property, content->AsElement(), aValue1, v1) ||
!ComputeAnimationValue(property, content->AsElement(), aValue2, v2)) {
return NS_ERROR_ILLEGAL_VALUE;
}
if (!nsStyleAnimation::ComputeDistance(property, v1, v2, *aResult)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
nsDOMWindowUtils::RenderDocument(const nsRect& aRect,
uint32_t aFlags,
nscolor aBackgroundColor,
gfxContext* aThebesContext)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
// Get DOM Document
nsresult rv;
nsCOMPtr<nsIDOMDocument> ddoc;
rv = window->GetDocument(getter_AddRefs(ddoc));
NS_ENSURE_SUCCESS(rv, rv);
// Get Document
nsCOMPtr<nsIDocument> doc = do_QueryInterface(ddoc, &rv);
NS_ENSURE_SUCCESS(rv, rv);
// Get Primary Shell
nsCOMPtr<nsIPresShell> presShell = doc->GetShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
// Render Document
return presShell->RenderDocument(aRect, aFlags, aBackgroundColor, aThebesContext);
}
NS_IMETHODIMP
nsDOMWindowUtils::GetCursorType(int16_t *aCursor)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aCursor);
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
bool isSameDoc = false;
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
do {
if (nsEventStateManager::sMouseOverDocument == doc) {
isSameDoc = true;
break;
}
} while ((doc = doc->GetParentDocument()));
if (!isSameDoc) {
*aCursor = eCursor_none;
return NS_OK;
}
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
// fetch cursor value from window's widget
*aCursor = widget->GetCursor();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetDisplayDPI(float *aDPI)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
*aDPI = widget->GetDPI();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetOuterWindowWithId(uint64_t aWindowID,
nsIDOMWindow** aWindow)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// XXX This method is deprecated. See bug 865664.
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
"DOM",
nsContentUtils::GetDocumentFromCaller(),
nsContentUtils::eDOM_PROPERTIES,
"GetWindowWithOuterIdWarning");
*aWindow = nsGlobalWindow::GetOuterWindowWithId(aWindowID);
NS_IF_ADDREF(*aWindow);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::WrapDOMFile(nsIFile *aFile,
nsIDOMFile **aDOMFile)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!aFile) {
return NS_ERROR_FAILURE;
}
NS_ADDREF(*aDOMFile = new nsDOMFileFile(aFile));
return NS_OK;
}
#ifdef DEBUG
static bool
CheckLeafLayers(Layer* aLayer, const nsIntPoint& aOffset, nsIntRegion* aCoveredRegion)
{
gfxMatrix transform;
if (!aLayer->GetTransform().Is2D(&transform) ||
transform.HasNonIntegerTranslation())
return false;
transform.NudgeToIntegers();
nsIntPoint offset = aOffset + nsIntPoint(transform.x0, transform.y0);
Layer* child = aLayer->GetFirstChild();
if (child) {
while (child) {
if (!CheckLeafLayers(child, offset, aCoveredRegion))
return false;
child = child->GetNextSibling();
}
} else {
nsIntRegion rgn = aLayer->GetVisibleRegion();
rgn.MoveBy(offset);
nsIntRegion tmp;
tmp.And(rgn, *aCoveredRegion);
if (!tmp.IsEmpty())
return false;
aCoveredRegion->Or(*aCoveredRegion, rgn);
}
return true;
}
#endif
NS_IMETHODIMP
nsDOMWindowUtils::LeafLayersPartitionWindow(bool* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aResult = true;
#ifdef DEBUG
nsIWidget* widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager* manager = widget->GetLayerManager();
if (!manager)
return NS_ERROR_FAILURE;
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_ERROR_FAILURE;
Layer* root = manager->GetRoot();
if (!root)
return NS_ERROR_FAILURE;
nsIntPoint offset(0, 0);
nsIntRegion coveredRegion;
if (!CheckLeafLayers(root, offset, &coveredRegion)) {
*aResult = false;
}
if (!coveredRegion.IsEqual(root->GetVisibleRegion())) {
*aResult = false;
}
#endif
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetMayHaveTouchEventListeners(bool* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsPIDOMWindow* innerWindow = window->GetCurrentInnerWindow();
*aResult = innerWindow ? innerWindow->HasTouchEventListeners() : false;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::CheckAndClearPaintedState(nsIDOMElement* aElement, bool* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!aElement) {
return NS_ERROR_INVALID_ARG;
}
nsresult rv;
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsIFrame* frame = content->GetPrimaryFrame();
if (!frame) {
*aResult = false;
return NS_OK;
}
*aResult = frame->CheckAndClearPaintedState();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::PreventFurtherDialogs()
{
// Permanently disable further dialogs for this window.
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
static_cast<nsGlobalWindow*>(window.get())->PreventFurtherDialogs(true);
return NS_OK;
}
static nsIDOMBlob*
GetXPConnectNative(JSContext* aCx, JSObject* aObj) {
nsCOMPtr<nsIDOMBlob> blob = do_QueryInterface(
nsContentUtils::XPConnect()->GetNativeOfWrapper(aCx, aObj));
return blob;
}
static nsresult
GetFileOrBlob(const nsAString& aName, const JS::Value& aBlobParts,
const JS::Value& aParameters, JSContext* aCx,
uint8_t aOptionalArgCount, nsISupports** aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsresult rv;
nsCOMPtr<nsISupports> file;
if (aName.IsVoid()) {
rv = nsDOMMultipartFile::NewBlob(getter_AddRefs(file));
}
else {
rv = nsDOMMultipartFile::NewFile(aName, getter_AddRefs(file));
}
NS_ENSURE_SUCCESS(rv, rv);
nsDOMMultipartFile* domFile =
static_cast<nsDOMMultipartFile*>(static_cast<nsIDOMFile*>(file.get()));
JS::Value args[2] = { aBlobParts, aParameters };
rv = domFile->InitBlob(aCx, aOptionalArgCount, args, GetXPConnectNative);
NS_ENSURE_SUCCESS(rv, rv);
file.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFile(const nsAString& aName, const JS::Value& aBlobParts,
const JS::Value& aParameters, JSContext* aCx,
uint8_t aOptionalArgCount, nsIDOMFile** aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsISupports> file;
nsresult rv = GetFileOrBlob(aName, aBlobParts, aParameters, aCx,
aOptionalArgCount, getter_AddRefs(file));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMFile> result = do_QueryInterface(file);
result.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetBlob(const JS::Value& aBlobParts,
const JS::Value& aParameters, JSContext* aCx,
uint8_t aOptionalArgCount, nsIDOMBlob** aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsISupports> blob;
nsresult rv = GetFileOrBlob(NullString(), aBlobParts, aParameters, aCx,
aOptionalArgCount, getter_AddRefs(blob));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMBlob> result = do_QueryInterface(blob);
result.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFileId(const JS::Value& aFile, JSContext* aCx,
int64_t* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!JSVAL_IS_PRIMITIVE(aFile)) {
JSObject* obj = JSVAL_TO_OBJECT(aFile);
nsISupports* nativeObj =
nsContentUtils::XPConnect()->GetNativeOfWrapper(aCx, obj);
nsCOMPtr<nsIDOMBlob> blob = do_QueryInterface(nativeObj);
if (blob) {
*aResult = blob->GetFileId();
return NS_OK;
}
nsCOMPtr<nsIDOMFileHandle> fileHandle = do_QueryInterface(nativeObj);
if (fileHandle) {
*aResult = fileHandle->GetFileId();
return NS_OK;
}
}
*aResult = -1;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFileReferences(const nsAString& aDatabaseName,
int64_t aId, int32_t* aRefCnt,
int32_t* aDBRefCnt, int32_t* aSliceRefCnt,
bool* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsCString origin;
nsresult rv = quota::QuotaManager::GetASCIIOriginFromWindow(window, origin);
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<indexedDB::IndexedDatabaseManager> mgr =
indexedDB::IndexedDatabaseManager::Get();
if (mgr) {
rv = mgr->BlockAndGetFileReferences(origin, aDatabaseName, aId, aRefCnt,
aDBRefCnt, aSliceRefCnt, aResult);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
*aRefCnt = *aDBRefCnt = *aSliceRefCnt = -1;
*aResult = false;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::IsIncrementalGCEnabled(JSContext* cx, bool* aResult)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aResult = JS::IsIncrementalGCEnabled(JS_GetRuntime(cx));
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StartPCCountProfiling(JSContext* cx)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
js::StartPCCountProfiling(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StopPCCountProfiling(JSContext* cx)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
js::StopPCCountProfiling(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::PurgePCCounts(JSContext* cx)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
js::PurgePCCounts(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptCount(JSContext* cx, int32_t *result)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*result = js::GetPCCountScriptCount(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptSummary(int32_t script, JSContext* cx, nsAString& result)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
JSString *text = js::GetPCCountScriptSummary(cx, script);
if (!text)
return NS_ERROR_FAILURE;
nsDependentJSString str;
if (!str.init(cx, text))
return NS_ERROR_FAILURE;
result = str;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptContents(int32_t script, JSContext* cx, nsAString& result)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
JSString *text = js::GetPCCountScriptContents(cx, script);
if (!text)
return NS_ERROR_FAILURE;
nsDependentJSString str;
if (!str.init(cx, text))
return NS_ERROR_FAILURE;
result = str;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPaintingSuppressed(bool *aPaintingSuppressed)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsIDocShell *docShell = window->GetDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
*aPaintingSuppressed = presShell->IsPaintingSuppressed();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPlugins(JSContext* cx, JS::Value* aPlugins)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
nsTArray<nsIObjectLoadingContent*> plugins;
doc->GetPlugins(plugins);
JS::Rooted<JSObject*> jsPlugins(cx);
nsresult rv = nsTArrayToJSArray(cx, plugins, jsPlugins.address());
NS_ENSURE_SUCCESS(rv, rv);
*aPlugins = OBJECT_TO_JSVAL(jsPlugins);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetScrollPositionClampingScrollPortSize(float aWidth, float aHeight)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!(aWidth >= 0.0 && aHeight >= 0.0)) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsIPresShell* presShell = GetPresShell();
if (!presShell) {
return NS_ERROR_FAILURE;
}
presShell->SetScrollPositionClampingScrollPortSize(
nsPresContext::CSSPixelsToAppUnits(aWidth),
nsPresContext::CSSPixelsToAppUnits(aHeight));
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetContentDocumentFixedPositionMargins(float aTop, float aRight,
float aBottom, float aLeft)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (!(aTop >= 0.0f && aRight >= 0.0f && aBottom >= 0.0f && aLeft >= 0.0f)) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsIPresShell* presShell = GetPresShell();
if (!presShell) {
return NS_ERROR_FAILURE;
}
nsMargin margins(nsPresContext::CSSPixelsToAppUnits(aTop),
nsPresContext::CSSPixelsToAppUnits(aRight),
nsPresContext::CSSPixelsToAppUnits(aBottom),
nsPresContext::CSSPixelsToAppUnits(aLeft));
presShell->SetContentDocumentFixedPositionMargins(margins);
return NS_OK;
}
nsresult
nsDOMWindowUtils::RemoteFrameFullscreenChanged(nsIDOMElement* aFrameElement,
const nsAString& aNewOrigin)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
doc->RemoteFrameFullscreenChanged(aFrameElement, aNewOrigin);
return NS_OK;
}
nsresult
nsDOMWindowUtils::RemoteFrameFullscreenReverted()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
NS_ENSURE_STATE(doc);
doc->RemoteFrameFullscreenReverted();
return NS_OK;
}
nsresult
nsDOMWindowUtils::ExitFullscreen()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIDocument::ExitFullscreen(nullptr, /* async */ false);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SelectAtPoint(float aX, float aY, uint32_t aSelectBehavior,
bool *_retval)
{
*_retval = false;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsSelectionAmount amount;
switch (aSelectBehavior) {
case nsIDOMWindowUtils::SELECT_CHARACTER:
amount = eSelectCharacter;
break;
case nsIDOMWindowUtils::SELECT_CLUSTER:
amount = eSelectCluster;
break;
case nsIDOMWindowUtils::SELECT_WORD:
amount = eSelectWord;
break;
case nsIDOMWindowUtils::SELECT_LINE:
amount = eSelectLine;
break;
case nsIDOMWindowUtils::SELECT_BEGINLINE:
amount = eSelectBeginLine;
break;
case nsIDOMWindowUtils::SELECT_ENDLINE:
amount = eSelectEndLine;
break;
case nsIDOMWindowUtils::SELECT_PARAGRAPH:
amount = eSelectParagraph;
break;
case nsIDOMWindowUtils::SELECT_WORDNOSPACE:
amount = eSelectWordNoSpace;
break;
default:
return NS_ERROR_INVALID_ARG;
}
nsIPresShell* presShell = GetPresShell();
if (!presShell) {
return NS_ERROR_UNEXPECTED;
}
// The root frame for this content window
nsIFrame* rootFrame = presShell->FrameManager()->GetRootFrame();
if (!rootFrame) {
return NS_ERROR_UNEXPECTED;
}
// Get the target frame at the client coordinates passed to us
nsPoint offset;
nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
nsIntPoint pt = ToWidgetPoint(aX, aY, offset, GetPresContext());
nsPoint ptInRoot =
nsLayoutUtils::GetEventCoordinatesRelativeTo(widget, pt, rootFrame);
nsIFrame* targetFrame = nsLayoutUtils::GetFrameForPoint(rootFrame, ptInRoot);
// This can happen if the page hasn't loaded yet or if the point
// is outside the frame.
if (!targetFrame) {
return NS_ERROR_INVALID_ARG;
}
// Convert point to coordinates relative to the target frame, which is
// what targetFrame's SelectByTypeAtPoint expects.
nsPoint relPoint =
nsLayoutUtils::GetEventCoordinatesRelativeTo(widget, pt, targetFrame);
nsresult rv =
static_cast<nsFrame*>(targetFrame)->
SelectByTypeAtPoint(GetPresContext(), relPoint, amount, amount,
nsFrame::SELECT_ACCUMULATE);
*_retval = !NS_FAILED(rv);
return NS_OK;
}
static nsIDocument::additionalSheetType
convertSheetType(uint32_t aSheetType)
{
switch(aSheetType) {
case nsDOMWindowUtils::AGENT_SHEET:
return nsIDocument::eAgentSheet;
case nsDOMWindowUtils::USER_SHEET:
return nsIDocument::eUserSheet;
case nsDOMWindowUtils::AUTHOR_SHEET:
return nsIDocument::eAuthorSheet;
default:
NS_ASSERTION(false, "wrong type");
// we must return something although this should never happen
return nsIDocument::SheetTypeCount;
}
}
NS_IMETHODIMP
nsDOMWindowUtils::LoadSheet(nsIURI *aSheetURI, uint32_t aSheetType)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aSheetURI);
NS_ENSURE_ARG(aSheetType == AGENT_SHEET ||
aSheetType == USER_SHEET ||
aSheetType == AUTHOR_SHEET);
nsCOMPtr<nsIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_INVALID_ARG);
nsCOMPtr<nsIDOMDocument> ddoc;
nsresult rv = window->GetDocument(getter_AddRefs(ddoc));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(ddoc, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc = do_QueryInterface(ddoc);
NS_ENSURE_TRUE(doc, NS_ERROR_INVALID_ARG);
nsIDocument::additionalSheetType type = convertSheetType(aSheetType);
rv = doc->LoadAdditionalStyleSheet(type, aSheetURI);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::RemoveSheet(nsIURI *aSheetURI, uint32_t aSheetType)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_ARG_POINTER(aSheetURI);
NS_ENSURE_ARG(aSheetType == AGENT_SHEET ||
aSheetType == USER_SHEET ||
aSheetType == AUTHOR_SHEET);
nsCOMPtr<nsIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_INVALID_ARG);
nsCOMPtr<nsIDOMDocument> ddoc;
nsresult rv = window->GetDocument(getter_AddRefs(ddoc));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(ddoc, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc = do_QueryInterface(ddoc);
NS_ENSURE_TRUE(doc, NS_ERROR_INVALID_ARG);
nsIDocument::additionalSheetType type = convertSheetType(aSheetType);
doc->RemoveAdditionalStyleSheet(type, aSheetURI);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIsHandlingUserInput(bool* aHandlingUserInput)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aHandlingUserInput = nsEventStateManager::IsHandlingUserInput();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::AllowScriptsToClose()
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
static_cast<nsGlobalWindow*>(window.get())->AllowScriptsToClose();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetIsParentWindowMainWidgetVisible(bool* aIsVisible)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// this should reflect the "is parent window visible" logic in
// nsWindowWatcher::OpenWindowInternal()
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIWidget> parentWidget;
nsIDocShell *docShell = window->GetDocShell();
if (docShell) {
nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
docShell->GetTreeOwner(getter_AddRefs(parentTreeOwner));
nsCOMPtr<nsIBaseWindow> parentWindow(do_GetInterface(parentTreeOwner));
if (parentWindow) {
parentWindow->GetMainWidget(getter_AddRefs(parentWidget));
}
}
if (!parentWidget) {
return NS_ERROR_NOT_AVAILABLE;
}
*aIsVisible = parentWidget->IsVisible();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::IsNodeDisabledForEvents(nsIDOMNode* aNode, bool* aRetVal)
{
*aRetVal = false;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsINode> n = do_QueryInterface(aNode);
nsINode* node = n;
while (node) {
if (node->IsNodeOfType(nsINode::eHTML_FORM_CONTROL)) {
nsCOMPtr<nsIFormControl> fc = do_QueryInterface(node);
if (fc && fc->IsDisabledForEvents(NS_EVENT_NULL)) {
*aRetVal = true;
break;
}
}
node = node->GetParentNode();
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetPaintFlashing(bool aPaintFlashing)
{
nsPresContext* presContext = GetPresContext();
if (presContext) {
presContext->SetPaintFlashing(aPaintFlashing);
// Clear paint flashing colors
nsIPresShell* presShell = GetPresShell();
if (!aPaintFlashing && presShell) {
nsIFrame* rootFrame = presShell->GetRootFrame();
if (rootFrame) {
rootFrame->InvalidateFrameSubtree();
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPaintFlashing(bool* aRetVal)
{
*aRetVal = false;
nsPresContext* presContext = GetPresContext();
if (presContext) {
*aRetVal = presContext->GetPaintFlashing();
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::DispatchEventToChromeOnly(nsIDOMEventTarget* aTarget,
nsIDOMEvent* aEvent,
bool* aRetVal)
{
*aRetVal = false;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_ENSURE_STATE(aTarget && aEvent);
aEvent->GetInternalNSEvent()->mFlags.mOnlyChromeDispatch = true;
aTarget->DispatchEvent(aEvent, aRetVal);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::RunInStableState(nsIRunnable *runnable)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIAppShell> appShell(do_GetService(kAppShellCID));
if (!appShell) {
return NS_ERROR_NOT_AVAILABLE;
}
return appShell->RunInStableState(runnable);
}
NS_IMETHODIMP
nsDOMWindowUtils::RunBeforeNextEvent(nsIRunnable *runnable)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIAppShell> appShell(do_GetService(kAppShellCID));
if (!appShell) {
return NS_ERROR_NOT_AVAILABLE;
}
return appShell->RunBeforeNextEvent(runnable);
}
NS_IMETHODIMP
nsDOMWindowUtils::GetOMTAOrComputedStyle(nsIDOMNode* aNode,
const nsAString& aProperty,
nsAString& aResult)
{
aResult.Truncate();
ErrorResult rv;
nsCOMPtr<Element> element = do_QueryInterface(aNode);
if (!element) {
return NS_ERROR_INVALID_ARG;
}
nsRefPtr<nsROCSSPrimitiveValue> cssValue = nullptr;
nsIFrame* frame = element->GetPrimaryFrame();
if (frame && nsLayoutUtils::AreAsyncAnimationsEnabled()) {
if (aProperty.EqualsLiteral("opacity")) {
Layer* layer = FrameLayerBuilder::GetDedicatedLayer(frame, nsDisplayItem::TYPE_OPACITY);
if (layer) {
float value;
ShadowLayerForwarder* forwarder = layer->Manager()->AsShadowForwarder();
if (forwarder) {
forwarder->GetShadowManager()->SendGetOpacity(layer->AsShadowableLayer()->GetShadow(), &value);
cssValue = new nsROCSSPrimitiveValue;
cssValue->SetNumber(value);
}
}
} else if (aProperty.EqualsLiteral("transform")) {
Layer* layer = FrameLayerBuilder::GetDedicatedLayer(frame, nsDisplayItem::TYPE_TRANSFORM);
if (layer) {
gfx3DMatrix matrix;
ShadowLayerForwarder* forwarder = layer->Manager()->AsShadowForwarder();
if (forwarder) {
forwarder->GetShadowManager()->SendGetTransform(layer->AsShadowableLayer()->GetShadow(), &matrix);
cssValue = nsComputedDOMStyle::MatrixToCSSValue(matrix);
}
}
}
}
if (cssValue) {
nsString text;
cssValue->GetCssText(text, rv);
aResult.Assign(text);
return rv.ErrorCode();
}
nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(element);
nsCOMPtr<nsIDOMCSSStyleDeclaration> style;
nsresult res = element->GetCurrentDoc()->GetWindow()->
GetComputedStyle(elem, aProperty, getter_AddRefs(style));
NS_ENSURE_SUCCESS(res, res);
return style->GetPropertyValue(aProperty, aResult);
}
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