forked from mirrors/gecko-dev
d2ed260822
Summary: Really sorry for the size of the patch. It's mostly automatic s/nsIDocument/Document/ but I had to fix up in a bunch of places manually to add the right namespacing and such. Overall it's not a very interesting patch I think. nsDocument.cpp turns into Document.cpp, nsIDocument.h into Document.h and nsIDocumentInlines.h into DocumentInlines.h. I also changed a bunch of nsCOMPtr usage to RefPtr, but not all of it. While fixing up some of the bits I also removed some unneeded OwnerDoc() null checks and such, but I didn't do anything riskier than that.
862 lines
26 KiB
C++
862 lines
26 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "ImageDocument.h"
|
|
#include "mozilla/AutoRestore.h"
|
|
#include "mozilla/ComputedStyle.h"
|
|
#include "mozilla/dom/Element.h"
|
|
#include "mozilla/dom/Event.h"
|
|
#include "mozilla/dom/ImageDocumentBinding.h"
|
|
#include "mozilla/dom/HTMLImageElement.h"
|
|
#include "mozilla/dom/MouseEvent.h"
|
|
#include "mozilla/StaticPrefs.h"
|
|
#include "nsRect.h"
|
|
#include "nsIImageLoadingContent.h"
|
|
#include "nsGenericHTMLElement.h"
|
|
#include "nsDocShell.h"
|
|
#include "DocumentInlines.h"
|
|
#include "nsDOMTokenList.h"
|
|
#include "nsIDOMEventListener.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "imgIRequest.h"
|
|
#include "imgILoader.h"
|
|
#include "imgIContainer.h"
|
|
#include "imgINotificationObserver.h"
|
|
#include "nsIPresShell.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsIChannel.h"
|
|
#include "nsIContentPolicy.h"
|
|
#include "nsContentPolicyUtils.h"
|
|
#include "nsPIDOMWindow.h"
|
|
#include "nsError.h"
|
|
#include "nsURILoader.h"
|
|
#include "nsIDocShell.h"
|
|
#include "nsIContentViewer.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsIScrollableFrame.h"
|
|
#include "nsContentUtils.h"
|
|
#include "mozilla/Preferences.h"
|
|
#include <algorithm>
|
|
|
|
#define AUTOMATIC_IMAGE_RESIZING_PREF "browser.enable_automatic_image_resizing"
|
|
#define CLICK_IMAGE_RESIZING_PREF "browser.enable_click_image_resizing"
|
|
|
|
// XXX A hack needed for Firefox's site specific zoom.
|
|
static bool IsSiteSpecific() {
|
|
return !mozilla::StaticPrefs::privacy_resistFingerprinting() &&
|
|
mozilla::Preferences::GetBool("browser.zoom.siteSpecific", false);
|
|
}
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class ImageListener : public MediaDocumentStreamListener {
|
|
public:
|
|
NS_DECL_NSIREQUESTOBSERVER
|
|
|
|
explicit ImageListener(ImageDocument* aDocument);
|
|
virtual ~ImageListener();
|
|
};
|
|
|
|
ImageListener::ImageListener(ImageDocument* aDocument)
|
|
: MediaDocumentStreamListener(aDocument) {}
|
|
|
|
ImageListener::~ImageListener() {}
|
|
|
|
NS_IMETHODIMP
|
|
ImageListener::OnStartRequest(nsIRequest* request, nsISupports* ctxt) {
|
|
NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE);
|
|
|
|
ImageDocument* imgDoc = static_cast<ImageDocument*>(mDocument.get());
|
|
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
|
|
if (!channel) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> domWindow = imgDoc->GetWindow();
|
|
NS_ENSURE_TRUE(domWindow, NS_ERROR_UNEXPECTED);
|
|
|
|
// Do a ShouldProcess check to see whether to keep loading the image.
|
|
nsCOMPtr<nsIURI> channelURI;
|
|
channel->GetURI(getter_AddRefs(channelURI));
|
|
|
|
nsAutoCString mimeType;
|
|
channel->GetContentType(mimeType);
|
|
|
|
nsCOMPtr<nsILoadInfo> loadInfo = channel->GetLoadInfo();
|
|
// query the corresponding arguments for the channel loadinfo and pass
|
|
// it on to the temporary loadinfo used for content policy checks.
|
|
nsCOMPtr<nsINode> requestingNode = domWindow->GetFrameElementInternal();
|
|
nsCOMPtr<nsIPrincipal> loadingPrincipal;
|
|
if (requestingNode) {
|
|
loadingPrincipal = requestingNode->NodePrincipal();
|
|
} else {
|
|
nsContentUtils::GetSecurityManager()->GetChannelResultPrincipal(
|
|
channel, getter_AddRefs(loadingPrincipal));
|
|
}
|
|
|
|
nsCOMPtr<nsILoadInfo> secCheckLoadInfo = new net::LoadInfo(
|
|
loadingPrincipal, loadInfo ? loadInfo->TriggeringPrincipal() : nullptr,
|
|
requestingNode, nsILoadInfo::SEC_ONLY_FOR_EXPLICIT_CONTENTSEC_CHECK,
|
|
nsIContentPolicy::TYPE_INTERNAL_IMAGE);
|
|
|
|
int16_t decision = nsIContentPolicy::ACCEPT;
|
|
nsresult rv = NS_CheckContentProcessPolicy(
|
|
channelURI, secCheckLoadInfo, mimeType, &decision,
|
|
nsContentUtils::GetContentPolicy());
|
|
|
|
if (NS_FAILED(rv) || NS_CP_REJECTED(decision)) {
|
|
request->Cancel(NS_ERROR_CONTENT_BLOCKED);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!imgDoc->mObservingImageLoader) {
|
|
nsCOMPtr<nsIImageLoadingContent> imageLoader =
|
|
do_QueryInterface(imgDoc->mImageContent);
|
|
NS_ENSURE_TRUE(imageLoader, NS_ERROR_UNEXPECTED);
|
|
|
|
imageLoader->AddNativeObserver(imgDoc);
|
|
imgDoc->mObservingImageLoader = true;
|
|
imageLoader->LoadImageWithChannel(channel, getter_AddRefs(mNextStream));
|
|
}
|
|
|
|
return MediaDocumentStreamListener::OnStartRequest(request, ctxt);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageListener::OnStopRequest(nsIRequest* aRequest, nsISupports* aCtxt,
|
|
nsresult aStatus) {
|
|
ImageDocument* imgDoc = static_cast<ImageDocument*>(mDocument.get());
|
|
nsContentUtils::DispatchChromeEvent(imgDoc, ToSupports(imgDoc),
|
|
NS_LITERAL_STRING("ImageContentLoaded"),
|
|
CanBubble::eYes, Cancelable::eYes);
|
|
return MediaDocumentStreamListener::OnStopRequest(aRequest, aCtxt, aStatus);
|
|
}
|
|
|
|
ImageDocument::ImageDocument()
|
|
: MediaDocument(),
|
|
mVisibleWidth(0.0),
|
|
mVisibleHeight(0.0),
|
|
mImageWidth(0),
|
|
mImageHeight(0),
|
|
mResizeImageByDefault(false),
|
|
mClickResizingEnabled(false),
|
|
mImageIsOverflowingHorizontally(false),
|
|
mImageIsOverflowingVertically(false),
|
|
mImageIsResized(false),
|
|
mShouldResize(false),
|
|
mFirstResize(false),
|
|
mObservingImageLoader(false),
|
|
mTitleUpdateInProgress(false),
|
|
mHasCustomTitle(false),
|
|
mOriginalZoomLevel(1.0)
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
,
|
|
mOriginalResolution(1.0)
|
|
#endif
|
|
{
|
|
}
|
|
|
|
ImageDocument::~ImageDocument() {}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(ImageDocument, MediaDocument, mImageContent)
|
|
|
|
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(ImageDocument, MediaDocument,
|
|
nsIImageDocument,
|
|
imgINotificationObserver,
|
|
nsIDOMEventListener)
|
|
|
|
nsresult ImageDocument::Init() {
|
|
nsresult rv = MediaDocument::Init();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
mResizeImageByDefault = Preferences::GetBool(AUTOMATIC_IMAGE_RESIZING_PREF);
|
|
mClickResizingEnabled = Preferences::GetBool(CLICK_IMAGE_RESIZING_PREF);
|
|
mShouldResize = mResizeImageByDefault;
|
|
mFirstResize = true;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
JSObject* ImageDocument::WrapNode(JSContext* aCx,
|
|
JS::Handle<JSObject*> aGivenProto) {
|
|
return ImageDocument_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
nsresult ImageDocument::StartDocumentLoad(const char* aCommand,
|
|
nsIChannel* aChannel,
|
|
nsILoadGroup* aLoadGroup,
|
|
nsISupports* aContainer,
|
|
nsIStreamListener** aDocListener,
|
|
bool aReset, nsIContentSink* aSink) {
|
|
nsresult rv = MediaDocument::StartDocumentLoad(
|
|
aCommand, aChannel, aLoadGroup, aContainer, aDocListener, aReset, aSink);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
mOriginalZoomLevel = IsSiteSpecific() ? 1.0 : GetZoomLevel();
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
mOriginalResolution = GetResolution();
|
|
#endif
|
|
|
|
NS_ASSERTION(aDocListener, "null aDocListener");
|
|
*aDocListener = new ImageListener(this);
|
|
NS_ADDREF(*aDocListener);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::Destroy() {
|
|
if (mImageContent) {
|
|
// Remove our event listener from the image content.
|
|
nsCOMPtr<EventTarget> target = mImageContent;
|
|
target->RemoveEventListener(NS_LITERAL_STRING("load"), this, false);
|
|
target->RemoveEventListener(NS_LITERAL_STRING("click"), this, false);
|
|
|
|
// Break reference cycle with mImageContent, if we have one
|
|
if (mObservingImageLoader) {
|
|
nsCOMPtr<nsIImageLoadingContent> imageLoader =
|
|
do_QueryInterface(mImageContent);
|
|
if (imageLoader) {
|
|
imageLoader->RemoveNativeObserver(this);
|
|
}
|
|
}
|
|
|
|
mImageContent = nullptr;
|
|
}
|
|
|
|
MediaDocument::Destroy();
|
|
}
|
|
|
|
void ImageDocument::SetScriptGlobalObject(
|
|
nsIScriptGlobalObject* aScriptGlobalObject) {
|
|
// If the script global object is changing, we need to unhook our event
|
|
// listeners on the window.
|
|
nsCOMPtr<EventTarget> target;
|
|
if (mScriptGlobalObject && aScriptGlobalObject != mScriptGlobalObject) {
|
|
target = do_QueryInterface(mScriptGlobalObject);
|
|
target->RemoveEventListener(NS_LITERAL_STRING("resize"), this, false);
|
|
target->RemoveEventListener(NS_LITERAL_STRING("keypress"), this, false);
|
|
}
|
|
|
|
// Set the script global object on the superclass before doing
|
|
// anything that might require it....
|
|
MediaDocument::SetScriptGlobalObject(aScriptGlobalObject);
|
|
|
|
if (aScriptGlobalObject) {
|
|
if (!InitialSetupHasBeenDone()) {
|
|
MOZ_ASSERT(!GetRootElement(), "Where did the root element come from?");
|
|
// Create synthetic document
|
|
#ifdef DEBUG
|
|
nsresult rv =
|
|
#endif
|
|
CreateSyntheticDocument();
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to create synthetic document");
|
|
|
|
target = mImageContent;
|
|
target->AddEventListener(NS_LITERAL_STRING("load"), this, false);
|
|
target->AddEventListener(NS_LITERAL_STRING("click"), this, false);
|
|
}
|
|
|
|
target = do_QueryInterface(aScriptGlobalObject);
|
|
target->AddEventListener(NS_LITERAL_STRING("resize"), this, false);
|
|
target->AddEventListener(NS_LITERAL_STRING("keypress"), this, false);
|
|
|
|
if (!InitialSetupHasBeenDone()) {
|
|
LinkStylesheet(
|
|
NS_LITERAL_STRING("resource://content-accessible/ImageDocument.css"));
|
|
if (!nsContentUtils::IsChildOfSameType(this)) {
|
|
LinkStylesheet(NS_LITERAL_STRING(
|
|
"resource://content-accessible/TopLevelImageDocument.css"));
|
|
LinkStylesheet(NS_LITERAL_STRING(
|
|
"chrome://global/skin/media/TopLevelImageDocument.css"));
|
|
}
|
|
InitialSetupDone();
|
|
}
|
|
}
|
|
}
|
|
|
|
void ImageDocument::OnPageShow(bool aPersisted,
|
|
EventTarget* aDispatchStartTarget,
|
|
bool aOnlySystemGroup) {
|
|
if (aPersisted) {
|
|
mOriginalZoomLevel = IsSiteSpecific() ? 1.0 : GetZoomLevel();
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
mOriginalResolution = GetResolution();
|
|
#endif
|
|
}
|
|
RefPtr<ImageDocument> kungFuDeathGrip(this);
|
|
UpdateSizeFromLayout();
|
|
|
|
MediaDocument::OnPageShow(aPersisted, aDispatchStartTarget, aOnlySystemGroup);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::GetImageIsOverflowing(bool* aImageIsOverflowing) {
|
|
*aImageIsOverflowing = ImageIsOverflowing();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::GetImageIsResized(bool* aImageIsResized) {
|
|
*aImageIsResized = ImageIsResized();
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<imgIRequest> ImageDocument::GetImageRequest(ErrorResult& aRv) {
|
|
nsCOMPtr<nsIImageLoadingContent> imageLoader =
|
|
do_QueryInterface(mImageContent);
|
|
nsCOMPtr<imgIRequest> imageRequest;
|
|
if (imageLoader) {
|
|
aRv = imageLoader->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
|
|
getter_AddRefs(imageRequest));
|
|
}
|
|
return imageRequest.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::GetImageRequest(imgIRequest** aImageRequest) {
|
|
ErrorResult rv;
|
|
*aImageRequest = GetImageRequest(rv).take();
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void ImageDocument::ShrinkToFit() {
|
|
if (!mImageContent) {
|
|
return;
|
|
}
|
|
if (GetZoomLevel() != mOriginalZoomLevel && mImageIsResized &&
|
|
!nsContentUtils::IsChildOfSameType(this)) {
|
|
// If we're zoomed, so that we don't maintain the invariant that
|
|
// mImageIsResized if and only if its displayed width/height fit in
|
|
// mVisibleWidth/mVisibleHeight, then we may need to switch to/from the
|
|
// overflowingVertical class here, because our viewport size may have
|
|
// changed and we don't plan to adjust the image size to compensate. Since
|
|
// mImageIsResized it has a "height" attribute set, and we can just get the
|
|
// displayed image height by getting .height on the HTMLImageElement.
|
|
//
|
|
// Hold strong ref, because Height() can run script.
|
|
RefPtr<HTMLImageElement> img = HTMLImageElement::FromNode(mImageContent);
|
|
uint32_t imageHeight = img->Height();
|
|
nsDOMTokenList* classList = img->ClassList();
|
|
ErrorResult ignored;
|
|
if (imageHeight > mVisibleHeight) {
|
|
classList->Add(NS_LITERAL_STRING("overflowingVertical"), ignored);
|
|
} else {
|
|
classList->Remove(NS_LITERAL_STRING("overflowingVertical"), ignored);
|
|
}
|
|
ignored.SuppressException();
|
|
return;
|
|
}
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
if (GetResolution() != mOriginalResolution && mImageIsResized) {
|
|
// Don't resize if resolution has changed, e.g., through pinch-zooming on
|
|
// Android.
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
// Keep image content alive while changing the attributes.
|
|
RefPtr<HTMLImageElement> image = HTMLImageElement::FromNode(mImageContent);
|
|
|
|
uint32_t newWidth = std::max(1, NSToCoordFloor(GetRatio() * mImageWidth));
|
|
uint32_t newHeight = std::max(1, NSToCoordFloor(GetRatio() * mImageHeight));
|
|
image->SetWidth(newWidth, IgnoreErrors());
|
|
image->SetHeight(newHeight, IgnoreErrors());
|
|
|
|
// The view might have been scrolled when zooming in, scroll back to the
|
|
// origin now that we're showing a shrunk-to-window version.
|
|
ScrollImageTo(0, 0, false);
|
|
|
|
if (!mImageContent) {
|
|
// ScrollImageTo flush destroyed our content.
|
|
return;
|
|
}
|
|
|
|
SetModeClass(eShrinkToFit);
|
|
|
|
mImageIsResized = true;
|
|
|
|
UpdateTitleAndCharset();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::DOMShrinkToFit() {
|
|
ShrinkToFit();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::DOMRestoreImageTo(int32_t aX, int32_t aY) {
|
|
RestoreImageTo(aX, aY);
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::ScrollImageTo(int32_t aX, int32_t aY, bool restoreImage) {
|
|
if (restoreImage) {
|
|
RestoreImage();
|
|
FlushPendingNotifications(FlushType::Layout);
|
|
}
|
|
|
|
nsCOMPtr<nsIPresShell> shell = GetShell();
|
|
if (!shell) {
|
|
return;
|
|
}
|
|
|
|
nsIScrollableFrame* sf = shell->GetRootScrollFrameAsScrollable();
|
|
if (!sf) {
|
|
return;
|
|
}
|
|
|
|
float ratio = GetRatio();
|
|
// Don't try to scroll image if the document is not visible (mVisibleWidth or
|
|
// mVisibleHeight is zero).
|
|
if (ratio <= 0.0) {
|
|
return;
|
|
}
|
|
nsRect portRect = sf->GetScrollPortRect();
|
|
sf->ScrollTo(
|
|
nsPoint(
|
|
nsPresContext::CSSPixelsToAppUnits(aX / ratio) - portRect.width / 2,
|
|
nsPresContext::CSSPixelsToAppUnits(aY / ratio) - portRect.height / 2),
|
|
nsIScrollableFrame::INSTANT);
|
|
}
|
|
|
|
void ImageDocument::RestoreImage() {
|
|
if (!mImageContent) {
|
|
return;
|
|
}
|
|
// Keep image content alive while changing the attributes.
|
|
nsCOMPtr<Element> imageContent = mImageContent;
|
|
imageContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::width, true);
|
|
imageContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::height, true);
|
|
|
|
if (ImageIsOverflowing()) {
|
|
if (!mImageIsOverflowingVertically) {
|
|
SetModeClass(eOverflowingHorizontalOnly);
|
|
} else {
|
|
SetModeClass(eOverflowingVertical);
|
|
}
|
|
} else {
|
|
SetModeClass(eNone);
|
|
}
|
|
|
|
mImageIsResized = false;
|
|
|
|
UpdateTitleAndCharset();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::DOMRestoreImage() {
|
|
RestoreImage();
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::ToggleImageSize() {
|
|
mShouldResize = true;
|
|
if (mImageIsResized) {
|
|
mShouldResize = false;
|
|
ResetZoomLevel();
|
|
RestoreImage();
|
|
} else if (ImageIsOverflowing()) {
|
|
ResetZoomLevel();
|
|
ShrinkToFit();
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::DOMToggleImageSize() {
|
|
ToggleImageSize();
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::NotifyPossibleTitleChange(bool aBoundTitleElement) {
|
|
if (!mHasCustomTitle && !mTitleUpdateInProgress) {
|
|
mHasCustomTitle = true;
|
|
}
|
|
|
|
Document::NotifyPossibleTitleChange(aBoundTitleElement);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::Notify(imgIRequest* aRequest, int32_t aType,
|
|
const nsIntRect* aData) {
|
|
if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
|
|
nsCOMPtr<imgIContainer> image;
|
|
aRequest->GetImage(getter_AddRefs(image));
|
|
return OnSizeAvailable(aRequest, image);
|
|
}
|
|
|
|
// Run this using a script runner because HAS_TRANSPARENCY notifications can
|
|
// come during painting and this will trigger invalidation.
|
|
if (aType == imgINotificationObserver::HAS_TRANSPARENCY) {
|
|
nsCOMPtr<nsIRunnable> runnable =
|
|
NewRunnableMethod("dom::ImageDocument::OnHasTransparency", this,
|
|
&ImageDocument::OnHasTransparency);
|
|
nsContentUtils::AddScriptRunner(runnable);
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
|
|
uint32_t reqStatus;
|
|
aRequest->GetImageStatus(&reqStatus);
|
|
nsresult status =
|
|
reqStatus & imgIRequest::STATUS_ERROR ? NS_ERROR_FAILURE : NS_OK;
|
|
return OnLoadComplete(aRequest, status);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::OnHasTransparency() {
|
|
if (!mImageContent || nsContentUtils::IsChildOfSameType(this)) {
|
|
return;
|
|
}
|
|
|
|
nsDOMTokenList* classList = mImageContent->ClassList();
|
|
mozilla::ErrorResult rv;
|
|
classList->Add(NS_LITERAL_STRING("transparent"), rv);
|
|
}
|
|
|
|
void ImageDocument::SetModeClass(eModeClasses mode) {
|
|
nsDOMTokenList* classList = mImageContent->ClassList();
|
|
ErrorResult rv;
|
|
|
|
if (mode == eShrinkToFit) {
|
|
classList->Add(NS_LITERAL_STRING("shrinkToFit"), rv);
|
|
} else {
|
|
classList->Remove(NS_LITERAL_STRING("shrinkToFit"), rv);
|
|
}
|
|
|
|
if (mode == eOverflowingVertical) {
|
|
classList->Add(NS_LITERAL_STRING("overflowingVertical"), rv);
|
|
} else {
|
|
classList->Remove(NS_LITERAL_STRING("overflowingVertical"), rv);
|
|
}
|
|
|
|
if (mode == eOverflowingHorizontalOnly) {
|
|
classList->Add(NS_LITERAL_STRING("overflowingHorizontalOnly"), rv);
|
|
} else {
|
|
classList->Remove(NS_LITERAL_STRING("overflowingHorizontalOnly"), rv);
|
|
}
|
|
|
|
rv.SuppressException();
|
|
}
|
|
|
|
nsresult ImageDocument::OnSizeAvailable(imgIRequest* aRequest,
|
|
imgIContainer* aImage) {
|
|
int32_t oldWidth = mImageWidth;
|
|
int32_t oldHeight = mImageHeight;
|
|
|
|
// Styles have not yet been applied, so we don't know the final size. For now,
|
|
// default to the image's intrinsic size.
|
|
aImage->GetWidth(&mImageWidth);
|
|
aImage->GetHeight(&mImageHeight);
|
|
|
|
// Multipart images send size available for each part; ignore them if it
|
|
// doesn't change our size. (We may not even support changing size in
|
|
// multipart images in the future.)
|
|
if (oldWidth == mImageWidth && oldHeight == mImageHeight) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> runnable =
|
|
NewRunnableMethod("dom::ImageDocument::DefaultCheckOverflowing", this,
|
|
&ImageDocument::DefaultCheckOverflowing);
|
|
nsContentUtils::AddScriptRunner(runnable);
|
|
UpdateTitleAndCharset();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult ImageDocument::OnLoadComplete(imgIRequest* aRequest,
|
|
nsresult aStatus) {
|
|
UpdateTitleAndCharset();
|
|
|
|
// mImageContent can be null if the document is already destroyed
|
|
if (NS_FAILED(aStatus) && mStringBundle && mImageContent) {
|
|
nsAutoCString src;
|
|
mDocumentURI->GetSpec(src);
|
|
NS_ConvertUTF8toUTF16 srcString(src);
|
|
const char16_t* formatString[] = {srcString.get()};
|
|
nsAutoString errorMsg;
|
|
mStringBundle->FormatStringFromName("InvalidImage", formatString, 1,
|
|
errorMsg);
|
|
|
|
mImageContent->SetAttr(kNameSpaceID_None, nsGkAtoms::alt, errorMsg, false);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ImageDocument::HandleEvent(Event* aEvent) {
|
|
nsAutoString eventType;
|
|
aEvent->GetType(eventType);
|
|
if (eventType.EqualsLiteral("resize")) {
|
|
CheckOverflowing(false);
|
|
} else if (eventType.EqualsLiteral("click") && mClickResizingEnabled) {
|
|
ResetZoomLevel();
|
|
mShouldResize = true;
|
|
if (mImageIsResized) {
|
|
int32_t x = 0, y = 0;
|
|
MouseEvent* event = aEvent->AsMouseEvent();
|
|
if (event) {
|
|
RefPtr<HTMLImageElement> img =
|
|
HTMLImageElement::FromNode(mImageContent);
|
|
x = event->ClientX() - img->OffsetLeft();
|
|
y = event->ClientY() - img->OffsetTop();
|
|
}
|
|
mShouldResize = false;
|
|
RestoreImageTo(x, y);
|
|
} else if (ImageIsOverflowing()) {
|
|
ShrinkToFit();
|
|
}
|
|
} else if (eventType.EqualsLiteral("load")) {
|
|
UpdateSizeFromLayout();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::UpdateSizeFromLayout() {
|
|
// Pull an updated size from the content frame to account for any size
|
|
// change due to CSS properties like |image-orientation|.
|
|
if (!mImageContent) {
|
|
return;
|
|
}
|
|
|
|
// Need strong ref, because GetPrimaryFrame can run script.
|
|
nsCOMPtr<Element> imageContent = mImageContent;
|
|
nsIFrame* contentFrame = imageContent->GetPrimaryFrame(FlushType::Frames);
|
|
if (!contentFrame) {
|
|
return;
|
|
}
|
|
|
|
nsIntSize oldSize(mImageWidth, mImageHeight);
|
|
IntrinsicSize newSize = contentFrame->GetIntrinsicSize();
|
|
|
|
if (newSize.width.GetUnit() == eStyleUnit_Coord) {
|
|
mImageWidth =
|
|
nsPresContext::AppUnitsToFloatCSSPixels(newSize.width.GetCoordValue());
|
|
}
|
|
if (newSize.height.GetUnit() == eStyleUnit_Coord) {
|
|
mImageHeight =
|
|
nsPresContext::AppUnitsToFloatCSSPixels(newSize.height.GetCoordValue());
|
|
}
|
|
|
|
// Ensure that our information about overflow is up-to-date if needed.
|
|
if (mImageWidth != oldSize.width || mImageHeight != oldSize.height) {
|
|
CheckOverflowing(false);
|
|
}
|
|
}
|
|
|
|
nsresult ImageDocument::CreateSyntheticDocument() {
|
|
// Synthesize an html document that refers to the image
|
|
nsresult rv = MediaDocument::CreateSyntheticDocument();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Add the image element
|
|
Element* body = GetBodyElement();
|
|
if (!body) {
|
|
NS_WARNING("no body on image document!");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
RefPtr<mozilla::dom::NodeInfo> nodeInfo;
|
|
nodeInfo = mNodeInfoManager->GetNodeInfo(
|
|
nsGkAtoms::img, nullptr, kNameSpaceID_XHTML, nsINode::ELEMENT_NODE);
|
|
|
|
mImageContent = NS_NewHTMLImageElement(nodeInfo.forget());
|
|
if (!mImageContent) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
nsCOMPtr<nsIImageLoadingContent> imageLoader =
|
|
do_QueryInterface(mImageContent);
|
|
NS_ENSURE_TRUE(imageLoader, NS_ERROR_UNEXPECTED);
|
|
|
|
nsAutoCString src;
|
|
mDocumentURI->GetSpec(src);
|
|
|
|
NS_ConvertUTF8toUTF16 srcString(src);
|
|
// Make sure not to start the image load from here...
|
|
imageLoader->SetLoadingEnabled(false);
|
|
mImageContent->SetAttr(kNameSpaceID_None, nsGkAtoms::src, srcString, false);
|
|
mImageContent->SetAttr(kNameSpaceID_None, nsGkAtoms::alt, srcString, false);
|
|
|
|
body->AppendChildTo(mImageContent, false);
|
|
imageLoader->SetLoadingEnabled(true);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult ImageDocument::CheckOverflowing(bool changeState) {
|
|
/* Create a scope so that the ComputedStyle gets destroyed before we might
|
|
* call RebuildStyleData. Also, holding onto pointers to the
|
|
* presentation through style resolution is potentially dangerous.
|
|
*/
|
|
{
|
|
nsPresContext* context = GetPresContext();
|
|
if (!context) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsRect visibleArea = context->GetVisibleArea();
|
|
|
|
mVisibleWidth = nsPresContext::AppUnitsToFloatCSSPixels(visibleArea.width);
|
|
mVisibleHeight =
|
|
nsPresContext::AppUnitsToFloatCSSPixels(visibleArea.height);
|
|
}
|
|
|
|
bool imageWasOverflowing = ImageIsOverflowing();
|
|
bool imageWasOverflowingVertically = mImageIsOverflowingVertically;
|
|
mImageIsOverflowingHorizontally = mImageWidth > mVisibleWidth;
|
|
mImageIsOverflowingVertically = mImageHeight > mVisibleHeight;
|
|
bool windowBecameBigEnough = imageWasOverflowing && !ImageIsOverflowing();
|
|
bool verticalOverflowChanged =
|
|
mImageIsOverflowingVertically != imageWasOverflowingVertically;
|
|
|
|
if (changeState || mShouldResize || mFirstResize || windowBecameBigEnough ||
|
|
verticalOverflowChanged) {
|
|
if (ImageIsOverflowing() && (changeState || mShouldResize)) {
|
|
ShrinkToFit();
|
|
} else if (mImageIsResized || mFirstResize || windowBecameBigEnough) {
|
|
RestoreImage();
|
|
} else if (!mImageIsResized && verticalOverflowChanged) {
|
|
if (mImageIsOverflowingVertically) {
|
|
SetModeClass(eOverflowingVertical);
|
|
} else {
|
|
SetModeClass(eOverflowingHorizontalOnly);
|
|
}
|
|
}
|
|
}
|
|
mFirstResize = false;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void ImageDocument::UpdateTitleAndCharset() {
|
|
if (mHasCustomTitle) {
|
|
return;
|
|
}
|
|
|
|
AutoRestore<bool> restore(mTitleUpdateInProgress);
|
|
mTitleUpdateInProgress = true;
|
|
|
|
nsAutoCString typeStr;
|
|
nsCOMPtr<imgIRequest> imageRequest;
|
|
nsCOMPtr<nsIImageLoadingContent> imageLoader =
|
|
do_QueryInterface(mImageContent);
|
|
if (imageLoader) {
|
|
imageLoader->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
|
|
getter_AddRefs(imageRequest));
|
|
}
|
|
|
|
if (imageRequest) {
|
|
nsCString mimeType;
|
|
imageRequest->GetMimeType(getter_Copies(mimeType));
|
|
ToUpperCase(mimeType);
|
|
nsCString::const_iterator start, end;
|
|
mimeType.BeginReading(start);
|
|
mimeType.EndReading(end);
|
|
nsCString::const_iterator iter = end;
|
|
if (FindInReadable(NS_LITERAL_CSTRING("IMAGE/"), start, iter) &&
|
|
iter != end) {
|
|
// strip out "X-" if any
|
|
if (*iter == 'X') {
|
|
++iter;
|
|
if (iter != end && *iter == '-') {
|
|
++iter;
|
|
if (iter == end) {
|
|
// looks like "IMAGE/X-" is the type?? Bail out of here.
|
|
mimeType.BeginReading(iter);
|
|
}
|
|
} else {
|
|
--iter;
|
|
}
|
|
}
|
|
typeStr = Substring(iter, end);
|
|
} else {
|
|
typeStr = mimeType;
|
|
}
|
|
}
|
|
|
|
nsAutoString status;
|
|
if (mImageIsResized) {
|
|
nsAutoString ratioStr;
|
|
ratioStr.AppendInt(NSToCoordFloor(GetRatio() * 100));
|
|
|
|
const char16_t* formatString[1] = {ratioStr.get()};
|
|
mStringBundle->FormatStringFromName("ScaledImage", formatString, 1, status);
|
|
}
|
|
|
|
static const char* const formatNames[4] = {
|
|
"ImageTitleWithNeitherDimensionsNorFile",
|
|
"ImageTitleWithoutDimensions",
|
|
"ImageTitleWithDimensions2",
|
|
"ImageTitleWithDimensions2AndFile",
|
|
};
|
|
|
|
MediaDocument::UpdateTitleAndCharset(typeStr, mChannel, formatNames,
|
|
mImageWidth, mImageHeight, status);
|
|
}
|
|
|
|
void ImageDocument::ResetZoomLevel() {
|
|
nsCOMPtr<nsIDocShell> docShell(mDocumentContainer);
|
|
if (docShell) {
|
|
if (nsContentUtils::IsChildOfSameType(this)) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIContentViewer> cv;
|
|
docShell->GetContentViewer(getter_AddRefs(cv));
|
|
if (cv) {
|
|
cv->SetFullZoom(mOriginalZoomLevel);
|
|
}
|
|
}
|
|
}
|
|
|
|
float ImageDocument::GetZoomLevel() {
|
|
float zoomLevel = mOriginalZoomLevel;
|
|
nsCOMPtr<nsIDocShell> docShell(mDocumentContainer);
|
|
if (docShell) {
|
|
nsCOMPtr<nsIContentViewer> cv;
|
|
docShell->GetContentViewer(getter_AddRefs(cv));
|
|
if (cv) {
|
|
cv->GetFullZoom(&zoomLevel);
|
|
}
|
|
}
|
|
return zoomLevel;
|
|
}
|
|
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
float ImageDocument::GetResolution() {
|
|
float resolution = mOriginalResolution;
|
|
nsCOMPtr<nsIPresShell> shell = GetShell();
|
|
if (shell) {
|
|
resolution = shell->GetResolution();
|
|
}
|
|
return resolution;
|
|
}
|
|
#endif
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
nsresult NS_NewImageDocument(mozilla::dom::Document** aResult) {
|
|
auto* doc = new mozilla::dom::ImageDocument();
|
|
NS_ADDREF(doc);
|
|
|
|
nsresult rv = doc->Init();
|
|
if (NS_FAILED(rv)) {
|
|
NS_RELEASE(doc);
|
|
}
|
|
|
|
*aResult = doc;
|
|
|
|
return rv;
|
|
}
|