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Bug 759726 - Move mCanvasElement to nsICanvasRenderingContextInternal and make SetCanvasElement return void; f=bz r=bjacob

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This commit is contained in:
Ms2ger 2012-06-06 09:42:47 +02:00
parent a2f3518cf1
commit 7f450410f9
12 changed files with 88 additions and 141 deletions
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1
content/canvas/public/DocumentRendererChild.h
View File

@ -6,7 +6,6 @@
#define mozilla_dom_DocumentRendererChild
#include "mozilla/ipc/PDocumentRendererChild.h"
#include "nsICanvasRenderingContextInternal.h"
#include "nsString.h"
#include "gfxContext.h"

3
content/canvas/public/DocumentRendererParent.h
View File

@ -6,11 +6,12 @@
#define mozilla_dom_DocumentRendererParent
#include "mozilla/ipc/PDocumentRendererParent.h"
#include "nsICanvasRenderingContextInternal.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "gfxContext.h"
class nsICanvasRenderingContextInternal;
namespace mozilla {
namespace ipc {

16
content/canvas/public/nsICanvasRenderingContextInternal.h
View File

@ -9,14 +9,14 @@
#include "nsISupports.h"
#include "nsIInputStream.h"
#include "nsIDocShell.h"
#include "nsHTMLCanvasElement.h"
#include "gfxPattern.h"
#include "mozilla/RefPtr.h"
#define NS_ICANVASRENDERINGCONTEXTINTERNAL_IID \
{ 0xffb42d3c, 0x8281, 0x44c8, \
{ 0xac, 0xba, 0x73, 0x15, 0x31, 0xaa, 0xe5, 0x07 } }
{ 0x8b8da863, 0xd151, 0x4014, \
{ 0x8b, 0xdc, 0x62, 0xb5, 0x0d, 0xc0, 0x2b, 0x62 } }
class nsHTMLCanvasElement;
class gfxContext;
class gfxASurface;
class nsIPropertyBag;
@ -46,9 +46,10 @@ public:
RenderFlagPremultAlpha = 0x1
};
// This method should NOT hold a ref to aParentCanvas; it will be called
// with nsnull when the element is going away.
NS_IMETHOD SetCanvasElement(nsHTMLCanvasElement* aParentCanvas) = 0;
void SetCanvasElement(nsHTMLCanvasElement* aParentCanvas)
{
mCanvasElement = aParentCanvas;
}
// Sets the dimensions of the canvas, in pixels. Called
// whenever the size of the element changes.
@ -119,6 +120,9 @@ public:
// anything into this canvas before changing the shmem state, it will be
// lost.
NS_IMETHOD SetIsIPC(bool isIPC) = 0;
protected:
nsRefPtr<nsHTMLCanvasElement> mCanvasElement;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsICanvasRenderingContextInternal,

1
content/canvas/src/DocumentRendererChild.cpp
View File

@ -11,6 +11,7 @@
#include "nsPIDOMWindow.h"
#include "nsIDOMWindow.h"
#include "nsIDOMDocument.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocument.h"

1
content/canvas/src/DocumentRendererParent.cpp
View File

@ -5,6 +5,7 @@
#include "mozilla/ipc/DocumentRendererParent.h"
#include "gfxImageSurface.h"
#include "gfxPattern.h"
#include "nsICanvasRenderingContextInternal.h"
using namespace mozilla::ipc;

31
content/canvas/src/WebGLContext.cpp
View File

@ -73,8 +73,7 @@ NS_NewCanvasRenderingContextWebGL(nsIDOMWebGLRenderingContext** aResult)
}
WebGLContext::WebGLContext()
: mCanvasElement(nsnull),
gl(nsnull)
: gl(nsnull)
{
SetIsDOMBinding();
mEnabledExtensions.SetLength(WebGLExtensionID_Max);
@ -243,10 +242,10 @@ WebGLContext::Invalidate()
if (!mCanvasElement)
return;
nsSVGEffects::InvalidateDirectRenderingObservers(HTMLCanvasElement());
nsSVGEffects::InvalidateDirectRenderingObservers(mCanvasElement);
mInvalidated = true;
HTMLCanvasElement()->InvalidateCanvasContent(nsnull);
mCanvasElement->InvalidateCanvasContent(nsnull);
}
/* readonly attribute nsIDOMHTMLCanvasElement canvas; */
@ -262,14 +261,6 @@ WebGLContext::GetCanvas(nsIDOMHTMLCanvasElement **canvas)
// nsICanvasRenderingContextInternal
//
NS_IMETHODIMP
WebGLContext::SetCanvasElement(nsHTMLCanvasElement* aParentCanvas)
{
mCanvasElement = aParentCanvas;
return NS_OK;
}
static bool
GetBoolFromPropertyBag(nsIPropertyBag *bag, const char *propName, bool *boolResult)
{
@ -332,7 +323,7 @@ WebGLContext::SetDimensions(PRInt32 width, PRInt32 height)
/*** early success return cases ***/
if (mCanvasElement) {
HTMLCanvasElement()->InvalidateCanvas();
mCanvasElement->InvalidateCanvas();
}
if (gl && mWidth == width && mHeight == height)
@ -727,7 +718,7 @@ WebGLContext::GetCanvasLayer(nsDisplayListBuilder* aBuilder,
// releasing the reference to the element.
// The userData will receive DidTransactionCallbacks, which flush the
// the invalidation state to indicate that the canvas is up to date.
userData = new WebGLContextUserData(HTMLCanvasElement());
userData = new WebGLContextUserData(mCanvasElement);
canvasLayer->SetDidTransactionCallback(
WebGLContextUserData::DidTransactionCallback, userData);
}
@ -1066,7 +1057,7 @@ WebGLContext::Notify(nsITimer* timer)
{
TerminateContextLossTimer();
if (!HTMLCanvasElement()) {
if (!mCanvasElement) {
// the canvas is gone. That happens when the page was closed before we got
// this timer event. In this case, there's nothing to do here, just don't crash.
return NS_OK;
@ -1076,8 +1067,8 @@ WebGLContext::Notify(nsITimer* timer)
// that now.
if (mContextStatus == ContextLostAwaitingEvent) {
bool defaultAction;
nsContentUtils::DispatchTrustedEvent(HTMLCanvasElement()->OwnerDoc(),
(nsIDOMHTMLCanvasElement*) HTMLCanvasElement(),
nsContentUtils::DispatchTrustedEvent(mCanvasElement->OwnerDoc(),
static_cast<nsIDOMHTMLCanvasElement*>(mCanvasElement),
NS_LITERAL_STRING("webglcontextlost"),
true,
true,
@ -1105,8 +1096,8 @@ WebGLContext::Notify(nsITimer* timer)
return NS_OK;
}
mContextStatus = ContextStable;
nsContentUtils::DispatchTrustedEvent(HTMLCanvasElement()->OwnerDoc(),
(nsIDOMHTMLCanvasElement*) HTMLCanvasElement(),
nsContentUtils::DispatchTrustedEvent(mCanvasElement->OwnerDoc(),
static_cast<nsIDOMHTMLCanvasElement*>(mCanvasElement),
NS_LITERAL_STRING("webglcontextrestored"),
true,
true);
@ -1215,7 +1206,7 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(WebGLContext)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(WebGLContext)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mCanvasElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mCanvasElement, nsINode)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY_OF_NSCOMPTR(mEnabledExtensions)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

11
content/canvas/src/WebGLContext.h
View File

@ -483,7 +483,7 @@ public:
nsIDOMWebGLRenderingContext)
nsINode* GetParentObject() {
return HTMLCanvasElement();
return mCanvasElement;
}
virtual JSObject* WrapObject(JSContext *cx, JSObject *scope,
@ -494,11 +494,6 @@ public:
NS_DECL_NSITIMERCALLBACK
// nsICanvasRenderingContextInternal
NS_IMETHOD SetCanvasElement(nsHTMLCanvasElement* aParentCanvas);
nsHTMLCanvasElement* HTMLCanvasElement() const {
return static_cast<nsHTMLCanvasElement*>(mCanvasElement.get());
}
NS_IMETHOD SetDimensions(PRInt32 width, PRInt32 height);
NS_IMETHOD InitializeWithSurface(nsIDocShell *docShell, gfxASurface *surface, PRInt32 width, PRInt32 height)
{ return NS_ERROR_NOT_IMPLEMENTED; }
@ -619,7 +614,7 @@ public:
// WebIDL WebGLRenderingContext API
nsHTMLCanvasElement* GetCanvas() const {
return HTMLCanvasElement();
return mCanvasElement;
}
WebGLsizei GetDrawingBufferWidth() const {
if (!IsContextStable())
@ -1107,8 +1102,6 @@ protected:
return ((x + y - 1) / y) * y;
}
nsCOMPtr<nsIDOMHTMLCanvasElement> mCanvasElement;
nsRefPtr<gl::GLContext> gl;
CheckedUint32 mGeneration;

4
content/canvas/src/WebGLContextGL.cpp
View File

@ -3841,7 +3841,7 @@ WebGLContext::ReadPixels(WebGLint x, WebGLint y, WebGLsizei width,
return;
}
if (HTMLCanvasElement()->IsWriteOnly() && !nsContentUtils::IsCallerTrustedForRead()) {
if (mCanvasElement->IsWriteOnly() && !nsContentUtils::IsCallerTrustedForRead()) {
GenerateWarning("readPixels: Not allowed");
return rv.Throw(NS_ERROR_DOM_SECURITY_ERR);
}
@ -4343,7 +4343,7 @@ WebGLContext::SurfaceFromElementResultToImageSurface(nsLayoutUtils::SurfaceFromE
// validated for cross-domain use.
if (!res.mCORSUsed) {
bool subsumes;
nsresult rv = HTMLCanvasElement()->NodePrincipal()->Subsumes(res.mPrincipal, &subsumes);
nsresult rv = mCanvasElement->NodePrincipal()->Subsumes(res.mPrincipal, &subsumes);
if (NS_FAILED(rv) || !subsumes) {
GenerateWarning("It is forbidden to load a WebGL texture from a cross-domain element that has not been validated with CORS. "
"See https://developer.mozilla.org/en/WebGL/Cross-Domain_Textures");

71
content/canvas/src/nsCanvasRenderingContext2D.cpp
View File

@ -317,7 +317,6 @@ public:
nsresult Redraw();
// nsICanvasRenderingContextInternal
NS_IMETHOD SetCanvasElement(nsHTMLCanvasElement* aParentCanvas);
NS_IMETHOD SetDimensions(PRInt32 width, PRInt32 height);
void Initialize(nsIDocShell *shell, PRInt32 width, PRInt32 height);
NS_IMETHOD InitializeWithSurface(nsIDocShell *shell, gfxASurface *surface, PRInt32 width, PRInt32 height);
@ -445,12 +444,6 @@ protected:
bool mResetLayer;
bool mIPC;
// the canvas element we're a context of
nsCOMPtr<nsIDOMHTMLCanvasElement> mCanvasElement;
nsHTMLCanvasElement *HTMLCanvasElement() {
return static_cast<nsHTMLCanvasElement*>(mCanvasElement.get());
}
// Initialize the Thebes rendering context
void CreateThebes();
@ -771,7 +764,7 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsCanvasRenderingContext2D)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mCanvasElement)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsCanvasRenderingContext2D)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mCanvasElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mCanvasElement, nsINode)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
DOMCI_DATA(CanvasRenderingContext2D, nsCanvasRenderingContext2D)
@ -807,7 +800,6 @@ NS_NewCanvasRenderingContext2DThebes(nsIDOMCanvasRenderingContext2D** aResult)
nsCanvasRenderingContext2D::nsCanvasRenderingContext2D()
: mValid(false), mZero(false), mOpaque(false), mResetLayer(true)
, mIPC(false)
, mCanvasElement(nsnull)
, mSaveCount(0), mIsEntireFrameInvalid(false)
, mPredictManyRedrawCalls(false), mHasPath(false), mInvalidateCount(0)
, mLastStyle(STYLE_MAX), mStyleStack(20)
@ -831,9 +823,9 @@ bool
nsCanvasRenderingContext2D::ParseColor(const nsAString& aString,
nscolor* aColor)
{
nsIDocument* document = HTMLCanvasElement()
? HTMLCanvasElement()->OwnerDoc()
: nsnull;
nsIDocument* document = mCanvasElement
? mCanvasElement->OwnerDoc()
: nsnull;
// Pass the CSS Loader object to the parser, to allow parser error
// reports to include the outer window ID.
@ -845,10 +837,10 @@ nsCanvasRenderingContext2D::ParseColor(const nsAString& aString,
nsIPresShell* presShell = GetPresShell();
nsRefPtr<nsStyleContext> parentContext;
if (HTMLCanvasElement() && HTMLCanvasElement()->IsInDoc()) {
if (mCanvasElement && mCanvasElement->IsInDoc()) {
// Inherit from the canvas element.
parentContext = nsComputedDOMStyle::GetStyleContextForElement(
HTMLCanvasElement(), nsnull, presShell);
mCanvasElement, nsnull, presShell);
}
unused << nsRuleNode::ComputeColor(
@ -861,7 +853,7 @@ nsresult
nsCanvasRenderingContext2D::Reset()
{
if (mCanvasElement) {
HTMLCanvasElement()->InvalidateCanvas();
mCanvasElement->InvalidateCanvas();
}
// only do this for non-docshell created contexts,
@ -913,7 +905,7 @@ nsCanvasRenderingContext2D::SetStyleFromStringOrInterface(const nsAString& aStr,
nsContentUtils::ReportToConsole(
nsIScriptError::warningFlag,
"Canvas",
mCanvasElement ? HTMLCanvasElement()->OwnerDoc() : nsnull,
mCanvasElement ? mCanvasElement->OwnerDoc() : nsnull,
nsContentUtils::eDOM_PROPERTIES,
"UnexpectedCanvasVariantStyle");
@ -997,7 +989,7 @@ nsCanvasRenderingContext2D::ApplyStyle(Style aWhichStyle,
nsCanvasPattern* pattern = CurrentState().patternStyles[aWhichStyle];
if (pattern) {
if (mCanvasElement)
CanvasUtils::DoDrawImageSecurityCheck(HTMLCanvasElement(),
CanvasUtils::DoDrawImageSecurityCheck(mCanvasElement,
pattern->Principal(),
pattern->GetForceWriteOnly(),
pattern->GetCORSUsed());
@ -1038,9 +1030,9 @@ nsCanvasRenderingContext2D::Redraw()
return NS_OK;
}
nsSVGEffects::InvalidateDirectRenderingObservers(HTMLCanvasElement());
nsSVGEffects::InvalidateDirectRenderingObservers(mCanvasElement);
HTMLCanvasElement()->InvalidateCanvasContent(nsnull);
mCanvasElement->InvalidateCanvasContent(nsnull);
return NS_OK;
}
@ -1063,9 +1055,9 @@ nsCanvasRenderingContext2D::Redraw(const gfxRect& r)
return NS_OK;
}
nsSVGEffects::InvalidateDirectRenderingObservers(HTMLCanvasElement());
nsSVGEffects::InvalidateDirectRenderingObservers(mCanvasElement);
HTMLCanvasElement()->InvalidateCanvasContent(&r);
mCanvasElement->InvalidateCanvasContent(&r);
return NS_OK;
}
@ -1377,14 +1369,6 @@ nsCanvasRenderingContext2D::GetImageFormat() const
// nsCanvasRenderingContext2D impl
//
NS_IMETHODIMP
nsCanvasRenderingContext2D::SetCanvasElement(nsHTMLCanvasElement* aCanvasElement)
{
mCanvasElement = aCanvasElement;
return NS_OK;
}
NS_IMETHODIMP
nsCanvasRenderingContext2D::GetCanvas(nsIDOMHTMLCanvasElement **canvas)
{
@ -2472,9 +2456,8 @@ nsCanvasRenderingContext2D::SetFont(const nsAString& font)
* string is equal to the old one.
*/
nsCOMPtr<nsIContent> content = do_QueryInterface(mCanvasElement);
if (!content && !mDocShell) {
NS_WARNING("Canvas element must be an nsIContent and non-null or a docshell must be provided");
if (!mCanvasElement && !mDocShell) {
NS_WARNING("Canvas element must be non-null or a docshell must be provided");
return NS_ERROR_FAILURE;
}
@ -2514,10 +2497,10 @@ nsCanvasRenderingContext2D::SetFont(const nsAString& font)
// values (2em, bolder, etc.)
nsRefPtr<nsStyleContext> parentContext;
if (content && content->IsInDoc()) {
if (mCanvasElement && mCanvasElement->IsInDoc()) {
// inherit from the canvas element
parentContext = nsComputedDOMStyle::GetStyleContextForElement(
content->AsElement(),
mCanvasElement,
nsnull,
presShell);
} else {
@ -2852,9 +2835,8 @@ nsCanvasRenderingContext2D::DrawOrMeasureText(const nsAString& aRawText,
if (aMaxWidth < 0)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsIContent> content = do_QueryInterface(mCanvasElement);
if (!content && !mDocShell) {
NS_WARNING("Canvas element must be an nsIContent and non-null or a docshell must be provided");
if (!mCanvasElement && !mDocShell) {
NS_WARNING("Canvas element must be non-null or a docshell must be provided");
return NS_ERROR_FAILURE;
}
@ -2871,10 +2853,10 @@ nsCanvasRenderingContext2D::DrawOrMeasureText(const nsAString& aRawText,
// for now, default to ltr if not in doc
bool isRTL = false;
if (content && content->IsInDoc()) {
if (mCanvasElement && mCanvasElement->IsInDoc()) {
// try to find the closest context
nsRefPtr<nsStyleContext> canvasStyle =
nsComputedDOMStyle::GetStyleContextForElement(content->AsElement(),
nsComputedDOMStyle::GetStyleContextForElement(mCanvasElement,
nsnull,
presShell);
if (!canvasStyle)
@ -3397,7 +3379,7 @@ nsCanvasRenderingContext2D::DrawImage(nsIDOMElement *imgElt, float a1,
nsRefPtr<gfxPattern> pattern;
gfxIntSize imgSize;
nsRefPtr<gfxASurface> imgsurf =
CanvasImageCache::Lookup(imgElt, HTMLCanvasElement(), &imgSize);
CanvasImageCache::Lookup(imgElt, mCanvasElement, &imgSize);
if (!imgsurf) {
// The canvas spec says that drawImage should draw the first frame
@ -3424,14 +3406,14 @@ nsCanvasRenderingContext2D::DrawImage(nsIDOMElement *imgElt, float a1,
imgSize = res.mSize;
if (mCanvasElement) {
CanvasUtils::DoDrawImageSecurityCheck(HTMLCanvasElement(),
CanvasUtils::DoDrawImageSecurityCheck(mCanvasElement,
res.mPrincipal,
res.mIsWriteOnly,
res.mCORSUsed);
}
if (res.mImageRequest) {
CanvasImageCache::NotifyDrawImage(imgElt, HTMLCanvasElement(),
CanvasImageCache::NotifyDrawImage(imgElt, mCanvasElement,
res.mImageRequest, imgsurf, imgSize);
}
}
@ -3834,8 +3816,7 @@ nsCanvasRenderingContext2D::GetImageData(double aSx, double aSy,
// Check only if we have a canvas element; if we were created with a docshell,
// then it's special internal use.
if (mCanvasElement &&
HTMLCanvasElement()->IsWriteOnly() &&
if (mCanvasElement && mCanvasElement->IsWriteOnly() &&
!nsContentUtils::IsCallerTrustedForRead()) {
// XXX ERRMSG we need to report an error to developers here! (bug 329026)
return NS_ERROR_DOM_SECURITY_ERR;
@ -4217,7 +4198,7 @@ nsCanvasRenderingContext2D::GetCanvasLayer(nsDisplayListBuilder* aBuilder,
// releasing the reference to the element.
// The userData will receive DidTransactionCallbacks, which flush the
// the invalidation state to indicate that the canvas is up to date.
userData = new CanvasRenderingContext2DUserData(HTMLCanvasElement());
userData = new CanvasRenderingContext2DUserData(mCanvasElement);
canvasLayer->SetDidTransactionCallback(
CanvasRenderingContext2DUserData::DidTransactionCallback, userData);
}

74
content/canvas/src/nsCanvasRenderingContext2DAzure.cpp
View File

@ -373,7 +373,6 @@ public:
nsresult Redraw();
// nsICanvasRenderingContextInternal
NS_IMETHOD SetCanvasElement(nsHTMLCanvasElement* aParentCanvas);
NS_IMETHOD SetDimensions(PRInt32 width, PRInt32 height);
NS_IMETHOD InitializeWithSurface(nsIDocShell *shell, gfxASurface *surface, PRInt32 width, PRInt32 height)
{ return NS_ERROR_NOT_IMPLEMENTED; }
@ -482,10 +481,6 @@ protected:
*/
SurfaceFormat GetSurfaceFormat() const;
nsHTMLCanvasElement *HTMLCanvasElement() {
return static_cast<nsHTMLCanvasElement*>(mCanvasElement.get());
}
// Member vars
PRInt32 mWidth, mHeight;
@ -505,9 +500,6 @@ protected:
// This is needed for drawing in drawAsyncXULElement
bool mIPC;
// the canvas element we're a context of
nsCOMPtr<nsIDOMHTMLCanvasElement> mCanvasElement;
// If mCanvasElement is not provided, then a docshell is
nsCOMPtr<nsIDocShell> mDocShell;
@ -784,7 +776,7 @@ protected:
gradient->mRadius2, gradient->GetGradientStopsForTarget(aRT));
} else if (state.patternStyles[aStyle]) {
if (aCtx->mCanvasElement) {
CanvasUtils::DoDrawImageSecurityCheck(aCtx->HTMLCanvasElement(),
CanvasUtils::DoDrawImageSecurityCheck(aCtx->mCanvasElement,
state.patternStyles[aStyle]->mPrincipal,
state.patternStyles[aStyle]->mForceWriteOnly,
state.patternStyles[aStyle]->mCORSUsed);
@ -948,7 +940,7 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsCanvasRenderingContext2DAzure)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mCanvasElement)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsCanvasRenderingContext2DAzure)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mCanvasElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mCanvasElement, nsINode)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
// XXX
@ -996,7 +988,6 @@ NS_NewCanvasRenderingContext2DAzure(nsIDOMCanvasRenderingContext2D** aResult)
nsCanvasRenderingContext2DAzure::nsCanvasRenderingContext2DAzure()
: mValid(false), mZero(false), mOpaque(false), mResetLayer(true)
, mIPC(false)
, mCanvasElement(nsnull)
, mIsEntireFrameInvalid(false)
, mPredictManyRedrawCalls(false), mPathTransformWillUpdate(false)
, mInvalidateCount(0)
@ -1020,9 +1011,9 @@ bool
nsCanvasRenderingContext2DAzure::ParseColor(const nsAString& aString,
nscolor* aColor)
{
nsIDocument* document = HTMLCanvasElement()
? HTMLCanvasElement()->OwnerDoc()
: nsnull;
nsIDocument* document = mCanvasElement
? mCanvasElement->OwnerDoc()
: nsnull;
// Pass the CSS Loader object to the parser, to allow parser error
// reports to include the outer window ID.
@ -1034,10 +1025,10 @@ nsCanvasRenderingContext2DAzure::ParseColor(const nsAString& aString,
nsIPresShell* presShell = GetPresShell();
nsRefPtr<nsStyleContext> parentContext;
if (HTMLCanvasElement() && HTMLCanvasElement()->IsInDoc()) {
if (mCanvasElement && mCanvasElement->IsInDoc()) {
// Inherit from the canvas element.
parentContext = nsComputedDOMStyle::GetStyleContextForElement(
HTMLCanvasElement(), nsnull, presShell);
mCanvasElement, nsnull, presShell);
}
unused << nsRuleNode::ComputeColor(
@ -1050,7 +1041,7 @@ nsresult
nsCanvasRenderingContext2DAzure::Reset()
{
if (mCanvasElement) {
HTMLCanvasElement()->InvalidateCanvas();
mCanvasElement->InvalidateCanvas();
}
// only do this for non-docshell created contexts,
@ -1103,7 +1094,7 @@ nsCanvasRenderingContext2DAzure::SetStyleFromStringOrInterface(const nsAString&
nsContentUtils::ReportToConsole(
nsIScriptError::warningFlag,
"Canvas",
mCanvasElement ? HTMLCanvasElement()->OwnerDoc() : nsnull,
mCanvasElement ? mCanvasElement->OwnerDoc() : nsnull,
nsContentUtils::eDOM_PROPERTIES,
"UnexpectedCanvasVariantStyle");
@ -1176,9 +1167,9 @@ nsCanvasRenderingContext2DAzure::Redraw()
gfxPlatform::GetPlatform()->GetThebesSurfaceForDrawTarget(mTarget);
mThebesSurface->MarkDirty();
nsSVGEffects::InvalidateDirectRenderingObservers(HTMLCanvasElement());
nsSVGEffects::InvalidateDirectRenderingObservers(mCanvasElement);
HTMLCanvasElement()->InvalidateCanvasContent(nsnull);
mCanvasElement->InvalidateCanvasContent(nsnull);
return NS_OK;
}
@ -1208,10 +1199,10 @@ nsCanvasRenderingContext2DAzure::Redraw(const mgfx::Rect &r)
gfxPlatform::GetPlatform()->GetThebesSurfaceForDrawTarget(mTarget);
mThebesSurface->MarkDirty();
nsSVGEffects::InvalidateDirectRenderingObservers(HTMLCanvasElement());
nsSVGEffects::InvalidateDirectRenderingObservers(mCanvasElement);
gfxRect tmpR = ThebesRect(r);
HTMLCanvasElement()->InvalidateCanvasContent(&tmpR);
mCanvasElement->InvalidateCanvasContent(&tmpR);
return;
}
@ -1497,14 +1488,6 @@ nsCanvasRenderingContext2DAzure::GetSurfaceFormat() const
// nsCanvasRenderingContext2DAzure impl
//
NS_IMETHODIMP
nsCanvasRenderingContext2DAzure::SetCanvasElement(nsHTMLCanvasElement* aCanvasElement)
{
mCanvasElement = aCanvasElement;
return NS_OK;
}
NS_IMETHODIMP
nsCanvasRenderingContext2DAzure::GetCanvas(nsIDOMHTMLCanvasElement **canvas)
{
@ -2680,9 +2663,8 @@ nsCanvasRenderingContext2DAzure::SetFont(const nsAString& font)
* string is equal to the old one.
*/
nsCOMPtr<nsIContent> content = do_QueryInterface(mCanvasElement);
if (!content && !mDocShell) {
NS_WARNING("Canvas element must be an nsIContent and non-null or a docshell must be provided");
if (!mCanvasElement && !mDocShell) {
NS_WARNING("Canvas element must be non-null or a docshell must be provided");
return NS_ERROR_FAILURE;
}
@ -2725,10 +2707,10 @@ nsCanvasRenderingContext2DAzure::SetFont(const nsAString& font)
// values (2em, bolder, etc.)
nsRefPtr<nsStyleContext> parentContext;
if (content && content->IsInDoc()) {
if (mCanvasElement && mCanvasElement->IsInDoc()) {
// inherit from the canvas element
parentContext = nsComputedDOMStyle::GetStyleContextForElement(
content->AsElement(),
mCanvasElement,
nsnull,
presShell);
} else {
@ -3168,9 +3150,8 @@ nsCanvasRenderingContext2DAzure::DrawOrMeasureText(const nsAString& aRawText,
if (aMaxWidth < 0)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsIContent> content = do_QueryInterface(mCanvasElement);
if (!content && !mDocShell) {
NS_WARNING("Canvas element must be an nsIContent and non-null or a docshell must be provided");
if (!mCanvasElement && !mDocShell) {
NS_WARNING("Canvas element must be non-null or a docshell must be provided");
return NS_ERROR_FAILURE;
}
@ -3187,10 +3168,10 @@ nsCanvasRenderingContext2DAzure::DrawOrMeasureText(const nsAString& aRawText,
// for now, default to ltr if not in doc
bool isRTL = false;
if (content && content->IsInDoc()) {
if (mCanvasElement && mCanvasElement->IsInDoc()) {
// try to find the closest context
nsRefPtr<nsStyleContext> canvasStyle =
nsComputedDOMStyle::GetStyleContextForElement(content->AsElement(),
nsComputedDOMStyle::GetStyleContextForElement(mCanvasElement,
nsnull,
presShell);
if (!canvasStyle) {
@ -3629,7 +3610,7 @@ nsCanvasRenderingContext2DAzure::DrawImage(nsIDOMElement *imgElt, float a1,
if (srcSurf && mCanvasElement) {
// Do security check here.
CanvasUtils::DoDrawImageSecurityCheck(HTMLCanvasElement(),
CanvasUtils::DoDrawImageSecurityCheck(mCanvasElement,
content->NodePrincipal(), canvas->IsWriteOnly(),
false);
imgSize = gfxIntSize(srcSurf->GetSize().width, srcSurf->GetSize().height);
@ -3637,7 +3618,7 @@ nsCanvasRenderingContext2DAzure::DrawImage(nsIDOMElement *imgElt, float a1,
}
} else {
gfxASurface* imgsurf =
CanvasImageCache::Lookup(imgElt, HTMLCanvasElement(), &imgSize);
CanvasImageCache::Lookup(imgElt, mCanvasElement, &imgSize);
if (imgsurf) {
srcSurf = gfxPlatform::GetPlatform()->GetSourceSurfaceForSurface(mTarget, imgsurf);
}
@ -3663,13 +3644,13 @@ nsCanvasRenderingContext2DAzure::DrawImage(nsIDOMElement *imgElt, float a1,
imgSize = res.mSize;
if (mCanvasElement) {
CanvasUtils::DoDrawImageSecurityCheck(HTMLCanvasElement(),
CanvasUtils::DoDrawImageSecurityCheck(mCanvasElement,
res.mPrincipal, res.mIsWriteOnly,
res.mCORSUsed);
}
if (res.mImageRequest) {
CanvasImageCache::NotifyDrawImage(imgElt, HTMLCanvasElement(),
CanvasImageCache::NotifyDrawImage(imgElt, mCanvasElement,
res.mImageRequest, res.mSurface, imgSize);
}
@ -4009,8 +3990,7 @@ nsCanvasRenderingContext2DAzure::GetImageData(double aSx, double aSy,
// Check only if we have a canvas element; if we were created with a docshell,
// then it's special internal use.
if (mCanvasElement &&
HTMLCanvasElement()->IsWriteOnly() &&
if (mCanvasElement && mCanvasElement->IsWriteOnly() &&
!nsContentUtils::IsCallerTrustedForRead())
{
// XXX ERRMSG we need to report an error to developers here! (bug 329026)
@ -4407,7 +4387,7 @@ nsCanvasRenderingContext2DAzure::GetCanvasLayer(nsDisplayListBuilder* aBuilder,
// releasing the reference to the element.
// The userData will receive DidTransactionCallbacks, which flush the
// the invalidation state to indicate that the canvas is up to date.
userData = new CanvasRenderingContext2DUserData(HTMLCanvasElement());
userData = new CanvasRenderingContext2DUserData(mCanvasElement);
canvasLayer->SetDidTransactionCallback(
CanvasRenderingContext2DUserData::DidTransactionCallback, userData);
}

4
content/html/content/public/nsHTMLCanvasElement.h
View File

@ -16,14 +16,14 @@
#include "nsDOMError.h"
#include "nsNodeInfoManager.h"
#include "nsICanvasRenderingContextInternal.h"
#include "nsICanvasElementExternal.h"
#include "nsIDOMCanvasRenderingContext2D.h"
#include "nsLayoutUtils.h"
#include "Layers.h"
class nsICanvasRenderingContextInternal;
class nsIDOMFile;
class nsIPropertyBag;
class nsHTMLCanvasElement : public nsGenericHTMLElement,
public nsICanvasElementExternal,

12
content/html/content/src/nsHTMLCanvasElement.cpp
View File

@ -11,6 +11,8 @@
#include "prmem.h"
#include "nsDOMFile.h"
#include "nsICanvasRenderingContextInternal.h"
#include "nsIDOMCanvasRenderingContext2D.h"
#include "nsIScriptSecurityManager.h"
#include "nsIXPConnect.h"
#include "jsapi.h"
@ -453,15 +455,9 @@ nsHTMLCanvasElement::GetContextHelper(const nsAString& aContextId,
return NS_OK;
}
rv = ctx->SetCanvasElement(this);
if (NS_FAILED(rv)) {
*aContext = nsnull;
return rv;
}
ctx->SetCanvasElement(this);
ctx.forget(aContext);
return rv;
return NS_OK;
}
NS_IMETHODIMP