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gecko/dom/base/nsDOMWindowUtils.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIDocShell.h"
#include "nsPresContext.h"
#include "nsDOMClassInfoID.h"
#include "nsDOMError.h"
#include "nsIDOMNSEvent.h"
#include "nsIPrivateDOMEvent.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 "nsIDOMTouchEvent.h"
#include "nsObjectLoadingContent.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 "nsIViewManager.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"
#if defined(MOZ_X11) && defined(MOZ_WIDGET_GTK2)
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#endif
#include "Layers.h"
#include "nsIIOService.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/indexedDB/FileInfo.h"
#include "mozilla/dom/indexedDB/IndexedDatabaseManager.h"
#include "sampler.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::layers;
using namespace mozilla::widget;
static bool IsUniversalXPConnectCapable()
{
bool hasCap = false;
nsresult rv = nsContentUtils::GetSecurityManager()->
IsCapabilityEnabled("UniversalXPConnect", &hasCap);
NS_ENSURE_SUCCESS(rv, false);
return hasCap;
}
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 nsnull;
nsIDocShell *docShell = window->GetDocShell();
if (!docShell)
return nsnull;
nsCOMPtr<nsIPresShell> presShell;
docShell->GetPresShell(getter_AddRefs(presShell));
return presShell;
}
nsPresContext*
nsDOMWindowUtils::GetPresContext()
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (!window)
return nsnull;
nsIDocShell *docShell = window->GetDocShell();
if (!docShell)
return nsnull;
nsRefPtr<nsPresContext> presContext;
docShell->GetPresContext(getter_AddRefs(presContext));
return presContext;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetImageAnimationMode(PRUint16 *aMode)
{
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(PRUint16 aMode)
{
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 (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (window) {
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
*aIsForced = doc &&
doc->GetDocumentCharacterSetSource() >= kCharsetFromParentForced;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetDocumentMetadata(const nsAString& aName,
nsAString& aValue)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
if (window) {
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
if (doc) {
nsCOMPtr<nsIAtom> name = do_GetAtom(aName);
doc->GetHeaderData(name, aValue);
return NS_OK;
}
}
aValue.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::Redraw(PRUint32 aCount, PRUint32 *aDurationOut)
{
if (aCount == 0)
aCount = 1;
if (nsIPresShell* presShell = GetPresShell()) {
nsIFrame *rootFrame = presShell->GetRootFrame();
if (rootFrame) {
nsRect r(nsPoint(0, 0), rootFrame->GetSize());
PRIntervalTime iStart = PR_IntervalNow();
for (PRUint32 i = 0; i < aCount; i++)
rootFrame->InvalidateWithFlags(r, nsIFrame::INVALIDATE_IMMEDIATE);
#if defined(MOZ_X11) && defined(MOZ_WIDGET_GTK2)
XSync(GDK_DISPLAY(), False);
#endif
*aDurationOut = PR_IntervalToMilliseconds(PR_IntervalNow() - iStart);
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetCSSViewport(float aWidthPx, float aHeightPx)
{
if (!IsUniversalXPConnectCapable()) {
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;
}
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 &&
nsLayoutUtils::FontSizeInflationEnabled(aPresContext) &&
nsLayoutUtils::FontSizeInflationMinTwips() != 0) {
bool changed;
aPresContext->ScreenWidthInchesForFontInflation(&changed);
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 (PRUint32 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::eResize,
NS_FRAME_IS_DIRTY);
}
}
}
}
}
}
}
}
NS_IMETHODIMP
nsDOMWindowUtils::SetDisplayPortForElement(float aXPx, float aYPx,
float aWidthPx, float aHeightPx,
nsIDOMElement* aElement)
{
if (!IsUniversalXPConnectCapable()) {
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;
}
nsRect lastDisplayPort;
if (nsLayoutUtils::GetDisplayPort(content, &lastDisplayPort) &&
displayport.IsEqualInterior(lastDisplayPort)) {
return NS_OK;
}
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) {
nsIContent* rootContent =
rootScrollFrame ? rootScrollFrame->GetContent() : nsnull;
nsRect rootDisplayport;
bool usingDisplayport = rootContent &&
nsLayoutUtils::GetDisplayPort(rootContent, &rootDisplayport);
rootFrame->InvalidateWithFlags(
usingDisplayport ? rootDisplayport : rootFrame->GetVisualOverflowRect(),
nsIFrame::INVALIDATE_NO_THEBES_LAYERS);
// 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(nsnull, rootFrame, nsRegion(), NS_RGB(255, 255, 255),
nsLayoutUtils::PAINT_WIDGET_LAYERS |
nsLayoutUtils::PAINT_EXISTING_TRANSACTION);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetResolution(float aXResolution, float aYResolution)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
return presShell ? presShell->SetResolution(aXResolution, aYResolution)
: NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetIsFirstPaint(bool aIsFirstPaint)
{
if (!IsUniversalXPConnectCapable()) {
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 (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsIPresShell* presShell = GetPresShell();
if (presShell) {
*aIsFirstPaint = presShell->GetIsFirstPaint();
return NS_OK;
}
return NS_ERROR_FAILURE;
}
/* static */
mozilla::widget::Modifiers
nsDOMWindowUtils::GetWidgetModifiers(PRInt32 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_SCROLL) {
result |= widget::MODIFIER_SCROLL;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_SYMBOLLOCK) {
result |= widget::MODIFIER_SYMBOLLOCK;
}
if (aModifiers & nsIDOMWindowUtils::MODIFIER_WIN) {
result |= widget::MODIFIER_WIN;
}
return result;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEvent(const nsAString& aType,
float aX,
float aY,
PRInt32 aButton,
PRInt32 aClickCount,
PRInt32 aModifiers,
bool aIgnoreRootScrollFrame)
{
return SendMouseEventCommon(aType, aX, aY, aButton, aClickCount, aModifiers,
aIgnoreRootScrollFrame, false);
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEventToWindow(const nsAString& aType,
float aX,
float aY,
PRInt32 aButton,
PRInt32 aClickCount,
PRInt32 aModifiers,
bool aIgnoreRootScrollFrame)
{
return SendMouseEventCommon(aType, aX, aY, aButton, aClickCount, aModifiers,
aIgnoreRootScrollFrame, true);
}
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));
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEventCommon(const nsAString& aType,
float aX,
float aY,
PRInt32 aButton,
PRInt32 aClickCount,
PRInt32 aModifiers,
bool aIgnoreRootScrollFrame,
bool aToWindow)
{
if (!IsUniversalXPConnectCapable()) {
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;
PRInt32 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
return NS_ERROR_FAILURE;
nsMouseEvent event(true, msg, widget, nsMouseEvent::eReal,
contextMenuKey ?
nsMouseEvent::eContextMenuKey : nsMouseEvent::eNormal);
event.modifiers = GetWidgetModifiers(aModifiers);
event.button = aButton;
event.widget = widget;
event.clickCount = aClickCount;
event.time = PR_IntervalNow();
event.flags |= NS_EVENT_FLAG_SYNTHETIC_TEST_EVENT;
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;
nsIViewManager* viewManager = presShell->GetViewManager();
if (!viewManager)
return NS_ERROR_FAILURE;
nsIView* view = viewManager->GetRootView();
if (!view)
return NS_ERROR_FAILURE;
status = nsEventStatus_eIgnore;
return presShell->HandleEvent(view->GetFrame(), &event, false, &status);
}
return widget->DispatchEvent(&event, status);
}
NS_IMETHODIMP
nsDOMWindowUtils::SendMouseScrollEvent(const nsAString& aType,
float aX,
float aY,
PRInt32 aButton,
PRInt32 aScrollFlags,
PRInt32 aDelta,
PRInt32 aModifiers)
{
if (!IsUniversalXPConnectCapable()) {
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;
PRInt32 msg;
if (aType.EqualsLiteral("DOMMouseScroll"))
msg = NS_MOUSE_SCROLL;
else if (aType.EqualsLiteral("MozMousePixelScroll"))
msg = NS_MOUSE_PIXEL_SCROLL;
else
return NS_ERROR_UNEXPECTED;
nsMouseScrollEvent event(true, msg, widget);
event.modifiers = GetWidgetModifiers(aModifiers);
event.button = aButton;
event.widget = widget;
event.delta = aDelta;
event.scrollFlags = aScrollFlags;
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::SendTouchEvent(const nsAString& aType,
PRUint32 *aIdentifiers,
PRInt32 *aXs,
PRInt32 *aYs,
PRUint32 *aRxs,
PRUint32 *aRys,
float *aRotationAngles,
float *aForces,
PRUint32 aCount,
PRInt32 aModifiers,
bool aIgnoreRootScrollFrame,
bool *aPreventDefault)
{
if (!IsUniversalXPConnectCapable()) {
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;
}
PRInt32 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 (PRUint32 i = 0; i < aCount; ++i) {
nsIntPoint pt = ToWidgetPoint(aXs[i], aYs[i], offset, presContext);
nsCOMPtr<nsIDOMTouch> t(new nsDOMTouch(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,
PRInt32 aKeyCode,
PRInt32 aCharCode,
PRInt32 aModifiers,
PRUint32 aAdditionalFlags,
bool* aDefaultActionTaken)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
PRInt32 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;
}
PRUint32 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();
if (aAdditionalFlags & KEY_FLAG_PREVENT_DEFAULT) {
event.flags |= NS_EVENT_FLAG_NO_DEFAULT;
}
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&event, status);
NS_ENSURE_SUCCESS(rv, rv);
*aDefaultActionTaken = (status != nsEventStatus_eConsumeNoDefault);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendNativeKeyEvent(PRInt32 aNativeKeyboardLayout,
PRInt32 aNativeKeyCode,
PRInt32 aModifiers,
const nsAString& aCharacters,
const nsAString& aUnmodifiedCharacters)
{
if (!IsUniversalXPConnectCapable()) {
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(PRInt32 aScreenX,
PRInt32 aScreenY,
PRInt32 aNativeMessage,
PRInt32 aModifierFlags,
nsIDOMElement* aElement)
{
if (!IsUniversalXPConnectCapable()) {
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(PRInt32 aScreenX,
PRInt32 aScreenY,
PRUint32 aNativeMessage,
double aDeltaX,
double aDeltaY,
double aDeltaZ,
PRUint32 aModifierFlags,
PRUint32 aAdditionalFlags,
nsIDOMElement* aElement)
{
if (!IsUniversalXPConnectCapable()) {
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 (!IsUniversalXPConnectCapable()) {
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 (!IsUniversalXPConnectCapable()) {
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(getter_AddRefs(presShell));
if (presShell) {
nsIFrame* frame = presShell->GetRootFrame();
if (frame)
return frame->GetView()->GetNearestWidget(aOffset);
}
}
}
return nsnull;
}
nsIWidget*
nsDOMWindowUtils::GetWidgetForElement(nsIDOMElement* aElement)
{
if (!aElement)
return GetWidget();
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
nsIDocument* doc = content->GetCurrentDoc();
nsIPresShell* presShell = doc ? doc->GetShell() : nsnull;
if (presShell) {
nsIFrame* frame = content->GetPrimaryFrame();
if (!frame) {
frame = presShell->GetRootFrame();
}
if (frame)
return frame->GetNearestWidget();
}
return nsnull;
}
NS_IMETHODIMP
nsDOMWindowUtils::Focus(nsIDOMElement* aElement)
{
if (!IsUniversalXPConnectCapable()) {
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,
PRInt32 aExtraForgetSkippableCalls)
{
SAMPLE_LABEL("GC", "GarbageCollect");
// Always permit this in debug builds.
#ifndef DEBUG
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
#endif
nsJSContext::GarbageCollectNow(js::gcreason::DOM_UTILS, nsGCNormal, true);
nsJSContext::CycleCollectNow(aListener, aExtraForgetSkippableCalls);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::CycleCollect(nsICycleCollectorListener *aListener,
PRInt32 aExtraForgetSkippableCalls)
{
// Always permit this in debug builds.
#ifndef DEBUG
if (!IsUniversalXPConnectCapable()) {
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,
PRUint32 aDirection,
PRFloat64 aDelta,
PRInt32 aModifiers)
{
if (!IsUniversalXPConnectCapable()) {
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;
PRInt32 msg;
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
return NS_ERROR_FAILURE;
nsSimpleGestureEvent event(true, msg, widget, aDirection, aDelta);
event.modifiers = GetWidgetModifiers(aModifiers);
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)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
NS_ENSURE_STATE(doc);
return doc->ElementFromPointHelper(aX, aY, aIgnoreRootScrollFrame, aFlushLayout,
aReturn);
}
NS_IMETHODIMP
nsDOMWindowUtils::NodesFromRect(float aX, float aY,
float aTopSize, float aRightSize,
float aBottomSize, float aLeftSize,
bool aIgnoreRootScrollFrame,
bool aFlushLayout,
nsIDOMNodeList** aReturn)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
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 nsnull;
}
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 static_cast<gfxImageSurface*>(result.mSurface.forget().get());
}
NS_IMETHODIMP
nsDOMWindowUtils::CompareCanvases(nsIDOMHTMLCanvasElement *aCanvas1,
nsIDOMHTMLCanvasElement *aCanvas2,
PRUint32* aMaxDifference,
PRUint32* retVal)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (aCanvas1 == nsnull ||
aCanvas2 == nsnull ||
retVal == nsnull)
return NS_ERROR_FAILURE;
nsRefPtr<gfxImageSurface> img1 = CanvasToImageSurface(aCanvas1);
nsRefPtr<gfxImageSurface> img2 = CanvasToImageSurface(aCanvas2);
if (img1 == nsnull || img2 == nsnull ||
img1->GetSize() != img2->GetSize() ||
img1->Stride() != img2->Stride())
return NS_ERROR_FAILURE;
int v;
gfxIntSize size = img1->GetSize();
PRUint32 stride = img1->Stride();
// we can optimize for the common all-pass case
if (stride == (PRUint32) 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;
}
}
PRUint32 dc = 0;
PRUint32 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 (*(PRUint32*) p1 != *(PRUint32*) p2) {
different++;
dc = NS_MAX((PRUint32)abs(p1[0] - p2[0]), dc);
dc = NS_MAX((PRUint32)abs(p1[1] - p2[1]), dc);
dc = NS_MAX((PRUint32)abs(p1[2] - p2[2]), dc);
dc = NS_MAX((PRUint32)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)
{
*aResult = false;
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_OK;
*aResult = presContext->IsDOMPaintEventPending();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::ClearMozAfterPaintEvents()
{
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_OK;
presContext->ClearMozAfterPaintEvents();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::DisableNonTestMouseEvents(bool aDisable)
{
if (!IsUniversalXPConnectCapable()) {
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(getter_AddRefs(presShell));
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
presShell->DisableNonTestMouseEvents(aDisable);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SuppressEventHandling(bool aSuppress)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
if (aSuppress) {
doc->SuppressEventHandling();
} else {
doc->UnsuppressEventHandlingAndFireEvents(true);
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetScrollXY(bool aFlushLayout, PRInt32* aScrollX, PRInt32* aScrollY)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
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::GetIMEIsOpen(bool *aState)
{
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(PRUint32 *aState)
{
NS_ENSURE_ARG_POINTER(aState);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
InputContext context = widget->GetInputContext();
*aState = static_cast<PRUint32>(context.mIMEState.mEnabled);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFocusedInputType(char** aType)
{
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 (aID == FrameMetrics::ROOT_SCROLL_ID) {
nsPresContext* presContext = GetPresContext();
if (!presContext) {
return NS_ERROR_NOT_AVAILABLE;
}
nsIDocument* document = presContext->Document();
mozilla::dom::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)
{
*aScreenPixels = 1;
if (!nsContentUtils::IsCallerTrustedForRead())
return NS_ERROR_DOM_SECURITY_ERR;
nsPresContext* presContext = GetPresContext();
if (!presContext)
return NS_OK;
*aScreenPixels = float(nsPresContext::AppUnitsPerCSSPixel())/
presContext->AppUnitsPerDevPixel();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::DispatchDOMEventViaPresShell(nsIDOMNode* aTarget,
nsIDOMEvent* aEvent,
bool aTrusted,
bool* aRetVal)
{
if (!nsContentUtils::IsCallerTrustedForRead()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsPresContext* presContext = GetPresContext();
NS_ENSURE_STATE(presContext);
nsCOMPtr<nsIPresShell> shell = presContext->GetPresShell();
NS_ENSURE_STATE(shell);
nsCOMPtr<nsIPrivateDOMEvent> event = do_QueryInterface(aEvent);
NS_ENSURE_STATE(event);
event->SetTrusted(aTrusted);
nsEvent* internalEvent = event->GetInternalNSEvent();
NS_ENSURE_STATE(internalEvent);
nsCOMPtr<nsIContent> content = do_QueryInterface(aTarget);
NS_ENSURE_STATE(content);
nsEventStatus status = nsEventStatus_eIgnore;
shell->HandleEventWithTarget(internalEvent, nsnull, content,
&status);
*aRetVal = (status != nsEventStatus_eConsumeNoDefault);
return NS_OK;
}
static void
InitEvent(nsGUIEvent &aEvent, nsIntPoint *aPt = nsnull)
{
if (aPt) {
aEvent.refPoint = *aPt;
}
aEvent.time = PR_IntervalNow();
}
NS_IMETHODIMP
nsDOMWindowUtils::SendCompositionEvent(const nsAString& aType,
const nsAString& aData,
const nsAString& aLocale)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
return NS_ERROR_FAILURE;
}
PRUint32 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;
}
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&compositionEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
static void
AppendClause(PRInt32 aClauseLength, PRUint32 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,
PRInt32 aFirstClauseLength,
PRUint32 aFirstClauseAttr,
PRInt32 aSecondClauseLength,
PRUint32 aSecondClauseAttr,
PRInt32 aThirdClauseLength,
PRUint32 aThirdClauseAttr,
PRInt32 aCaretStart,
PRInt32 aCaretLength)
{
if (!IsUniversalXPConnectCapable()) {
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);
PRInt32 len = aFirstClauseLength + aSecondClauseLength + aThirdClauseLength;
NS_ENSURE_TRUE(len == 0 || PRUint32(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();
nsEventStatus status;
nsresult rv = widget->DispatchEvent(&textEvent, status);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SendQueryContentEvent(PRUint32 aType,
PRUint32 aOffset, PRUint32 aLength,
PRInt32 aX, PRInt32 aY,
nsIQueryContentEventResult **aResult)
{
*aResult = nsnull;
if (!IsUniversalXPConnectCapable()) {
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(getter_AddRefs(presShell));
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(PRUint32 aOffset,
PRUint32 aLength,
bool aReverse,
bool *aResult)
{
*aResult = false;
if (!IsUniversalXPConnectCapable()) {
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 (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// get the widget to send the event to
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
PRInt32 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::IsCallerTrustedForRead()) {
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 (!IsUniversalXPConnectCapable()) {
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()
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
window->EnterModalState();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::LeaveModalState()
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
window->LeaveModalState(nsnull);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::EnterModalStateWithWindow(nsIDOMWindow **aWindow)
{
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)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
NS_ENSURE_ARG_POINTER(aWindow);
window->LeaveModalState(aWindow);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::IsInModalState(bool *retval)
{
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)
{
// This wasn't privileged in the past, but better to expose less than more.
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// First argument must be an object.
if (JSVAL_IS_PRIMITIVE(aObject)) {
return NS_ERROR_XPC_BAD_CONVERT_JS;
}
JSObject* parent = 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(PRUint64 *aWindowID)
{
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(PRUint64 *aWindowID)
{
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 (!IsUniversalXPConnectCapable()) {
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 (!IsUniversalXPConnectCapable()) {
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)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
mgr->GetBackendName(aType);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StartFrameTimeRecording()
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
mgr->StartFrameTimeRecording();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StopFrameTimeRecording(PRUint32 *frameCount NS_OUTPARAM, float **frames NS_OUTPARAM)
{
NS_ENSURE_ARG_POINTER(frameCount);
NS_ENSURE_ARG_POINTER(frames);
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
LayerManager *mgr = widget->GetLayerManager();
if (!mgr)
return NS_ERROR_FAILURE;
nsTArray<float> frameTimes = mgr->StopFrameTimeRecording();
*frames = nsnull;
*frameCount = frameTimes.Length();
if (*frameCount != 0) {
*frames = (float*)nsMemory::Alloc(*frameCount * sizeof(float*));
if (!*frames)
return NS_ERROR_OUT_OF_MEMORY;
/* copy over the frame times into the array we just allocated */
for (PRUint32 i = 0; i < *frameCount; i++) {
(*frames)[i] = frameTimes[i];
}
}
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(PRInt64 aMilliseconds)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
GetPresContext()->RefreshDriver()->AdvanceTimeAndRefresh(aMilliseconds);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::RestoreNormalRefresh()
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
GetPresContext()->RefreshDriver()->RestoreNormalRefresh();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::ComputeAnimationDistance(nsIDOMElement* aElement,
const nsAString& aProperty,
const nsAString& aValue1,
const nsAString& aValue2,
double* aResult)
{
if (!IsUniversalXPConnectCapable()) {
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);
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,
PRUint32 aFlags,
nscolor aBackgroundColor,
gfxContext* aThebesContext)
{
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(PRInt16 *aCursor)
{
NS_ENSURE_ARG_POINTER(aCursor);
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
bool isSameDoc = false;
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
do {
if (nsEventStateManager::sMouseOverDocument == doc.get()) {
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::GoOnline()
{
// This is only allowed from about:neterror, which is unprivileged, so it
// can't access the io-service itself.
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc(do_QueryInterface(window->GetExtantDocument()));
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
nsCOMPtr<nsIURI> documentURI;
documentURI = doc->GetDocumentURI();
nsCAutoString spec;
documentURI->GetSpec(spec);
if (!StringBeginsWith(spec, NS_LITERAL_CSTRING("about:neterror?")))
return NS_ERROR_DOM_SECURITY_ERR;
nsCOMPtr<nsIIOService> ios = do_GetService("@mozilla.org/network/io-service;1");
if (ios) {
ios->SetOffline(false); // !offline
return NS_OK;
}
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetDisplayDPI(float *aDPI)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return NS_ERROR_FAILURE;
*aDPI = widget->GetDPI();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetOuterWindowWithId(PRUint64 aWindowID,
nsIDOMWindow** aWindow)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aWindow = nsGlobalWindow::GetOuterWindowWithId(aWindowID);
NS_IF_ADDREF(*aWindow);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::WrapDOMFile(nsIFile *aFile,
nsIDOMFile **aDOMFile) {
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 (!IsUniversalXPConnectCapable()) {
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 (!IsUniversalXPConnectCapable()) {
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 (!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::GetFileId(nsIDOMBlob* aBlob, PRInt64* aResult)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
*aResult = aBlob->GetFileId();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetFileReferences(const nsAString& aDatabaseName,
PRInt64 aId, PRInt32* aRefCnt,
PRInt32* aDBRefCnt, PRInt32* aSliceRefCnt,
bool* aResult)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsCString origin;
nsresult rv = indexedDB::IndexedDatabaseManager::GetASCIIOriginFromWindow(
window, origin);
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<indexedDB::IndexedDatabaseManager> mgr =
indexedDB::IndexedDatabaseManager::Get();
if (mgr) {
nsRefPtr<indexedDB::FileManager> fileManager =
mgr->GetFileManager(origin, aDatabaseName);
if (fileManager) {
nsRefPtr<indexedDB::FileInfo> fileInfo = fileManager->GetFileInfo(aId);
if (fileInfo) {
fileInfo->GetReferences(aRefCnt, aDBRefCnt, aSliceRefCnt);
if (*aRefCnt != -1) {
// We added an extra temp ref, so account for that accordingly.
(*aRefCnt)--;
}
*aResult = true;
return NS_OK;
}
}
}
*aRefCnt = *aDBRefCnt = *aSliceRefCnt = -1;
*aResult = false;
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::IsIncrementalGCEnabled(JSContext* cx, bool* aResult)
{
*aResult = js::IsIncrementalGCEnabled(JS_GetRuntime(cx));
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StartPCCountProfiling(JSContext* cx)
{
js::StartPCCountProfiling(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::StopPCCountProfiling(JSContext* cx)
{
js::StopPCCountProfiling(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::PurgePCCounts(JSContext* cx)
{
js::PurgePCCounts(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptCount(JSContext* cx, PRInt32 *result)
{
*result = js::GetPCCountScriptCount(cx);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptSummary(PRInt32 script, JSContext* cx, nsAString& result)
{
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(PRInt32 script, JSContext* cx, nsAString& result)
{
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)
{
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(getter_AddRefs(presShell));
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
*aPaintingSuppressed = presShell->IsPaintingSuppressed();
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetPlugins(JSContext* cx, jsval* aPlugins)
{
if (!IsUniversalXPConnectCapable()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_STATE(window);
nsIDOMDocument* ddoc = window->GetExtantDocument();
nsresult rv;
nsCOMPtr<nsIDocument> doc = do_QueryInterface(ddoc, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsTArray<nsIObjectLoadingContent*> plugins;
doc->GetPlugins(plugins);
JSObject* jsPlugins = nsnull;
rv = nsTArrayToJSArray(cx, plugins, &jsPlugins);
NS_ENSURE_SUCCESS(rv, rv);
*aPlugins = OBJECT_TO_JSVAL(jsPlugins);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::SetScrollPositionClampingScrollPortSize(float aWidth, float aHeight)
{
if (!IsUniversalXPConnectCapable()) {
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::SetIsApp(bool aValue)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
static_cast<nsGlobalWindow*>(window.get())->SetIsApp(aValue);
return NS_OK;
}
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