| File: | Source/WebKit/WebProcess/WebPage/Cocoa/PositionInformationForWebPage.mm |
| Warning: | line 245, column 96 Call argument for 'this' parameter is uncounted and unsafe |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* |
| 2 | * Copyright (C) 2026 Apple Inc. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
| 12 | * |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| 14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| 17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 23 | * THE POSSIBILITY OF SUCH DAMAGE. |
| 24 | */ |
| 25 | |
| 26 | #import "config.h" |
| 27 | #import "PositionInformationForWebPage.h" |
| 28 | |
| 29 | #if PLATFORM(COCOA)(defined 1 && 1) |
| 30 | |
| 31 | #import "InteractionInformationAtPosition.h" |
| 32 | #import "InteractionInformationRequest.h" |
| 33 | #import "PluginView.h" |
| 34 | #import "ShareableBitmapUtilities.h" |
| 35 | #import "WebPage.h" |
| 36 | #import <WebCore/ContainerNodeInlines.h> |
| 37 | #import <WebCore/DataDetection.h> |
| 38 | #import <WebCore/DataDetectionResultsStorage.h> |
| 39 | #import <WebCore/Document.h> |
| 40 | #import <WebCore/DocumentQuirks.h> |
| 41 | #import <WebCore/Editor.h> |
| 42 | #import <WebCore/Element.h> |
| 43 | #import <WebCore/ElementInlines.h> |
| 44 | #import <WebCore/EventHandler.h> |
| 45 | #import <WebCore/EventNames.h> |
| 46 | #import <WebCore/EventTargetInlines.h> |
| 47 | #import <WebCore/FocusController.h> |
| 48 | #import <WebCore/FrameDestructionObserverInlines.h> |
| 49 | #import <WebCore/HTMLAnchorElement.h> |
| 50 | #import <WebCore/HTMLAttachmentElement.h> |
| 51 | #import <WebCore/HTMLElement.h> |
| 52 | #import <WebCore/HTMLImageElement.h> |
| 53 | #import <WebCore/HTMLInputElement.h> |
| 54 | #import <WebCore/HTMLModelElement.h> |
| 55 | #import <WebCore/HTMLSelectElement.h> |
| 56 | #import <WebCore/HTMLTextAreaElement.h> |
| 57 | #import <WebCore/HTMLVideoElement.h> |
| 58 | #import <WebCore/HitTestRequest.h> |
| 59 | #import <WebCore/HitTestResult.h> |
| 60 | #import <WebCore/ImageOverlay.h> |
| 61 | #import <WebCore/LocalDOMWindow.h> |
| 62 | #import <WebCore/LocalFrameInlines.h> |
| 63 | #import <WebCore/Model.h> |
| 64 | #import <WebCore/NodeDocument.h> |
| 65 | #import <WebCore/Page.h> |
| 66 | #import <WebCore/Quirks.h> |
| 67 | #import <WebCore/RenderBlockFlow.h> |
| 68 | #import <WebCore/RenderBoxInlines.h> |
| 69 | #import <WebCore/RenderImage.h> |
| 70 | #import <WebCore/RenderObjectDocument.h> |
| 71 | #import <WebCore/RenderObjectStyle.h> |
| 72 | #import <WebCore/RenderVideo.h> |
| 73 | #import <WebCore/RenderVideoInlines.h> |
| 74 | #import <WebCore/ScrollingCoordinator.h> |
| 75 | #import <WebCore/VisibleUnits.h> |
| 76 | #import <wtf/text/StringToIntegerConversion.h> |
| 77 | |
| 78 | namespace WebKit { |
| 79 | |
| 80 | static void focusedElementPositionInformation(WebPage& page, WebCore::Element& focusedElement, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 81 | { |
| 82 | RefPtr frame = page.corePage()->focusController().focusedOrMainFrame(); |
| 83 | if (!frame || !frame->editor().hasComposition()) |
| 84 | return; |
| 85 | |
| 86 | const uint32_t kHitAreaWidth = 66; |
| 87 | const uint32_t kHitAreaHeight = 66; |
| 88 | Ref view = *frame->view(); |
| 89 | WebCore::IntPoint adjustedPoint(view->rootViewToContents(request.point)); |
| 90 | WebCore::IntPoint constrainedPoint = WebPage::constrainPoint(adjustedPoint, *frame, focusedElement); |
| 91 | WebCore::VisiblePosition position = frame->visiblePositionForPoint(constrainedPoint); |
| 92 | |
| 93 | auto compositionRange = protect(frame->editor())->compositionRange(); |
| 94 | if (!compositionRange) |
| 95 | return; |
| 96 | |
| 97 | auto startPosition = makeDeprecatedLegacyPosition(compositionRange->start); |
| 98 | auto endPosition = makeDeprecatedLegacyPosition(compositionRange->end); |
| 99 | if (position < startPosition) |
| 100 | position = startPosition; |
| 101 | else if (position > endPosition) |
| 102 | position = endPosition; |
| 103 | WebCore::IntRect caretRect = view->contentsToRootView(position.absoluteCaretBounds()); |
| 104 | float deltaX = std::abs(caretRect.x() + (caretRect.width() / 2) - request.point.x()); |
| 105 | float deltaYFromTheTop = std::abs(caretRect.y() - request.point.y()); |
| 106 | float deltaYFromTheBottom = std::abs(caretRect.y() + caretRect.height() - request.point.y()); |
| 107 | |
| 108 | info.isNearMarkedText = !(deltaX > kHitAreaWidth || deltaYFromTheTop > kHitAreaHeight || deltaYFromTheBottom > kHitAreaHeight); |
| 109 | } |
| 110 | |
| 111 | static void linkIndicatorPositionInformation(WebPage& page, WebCore::Element& linkElement, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 112 | { |
| 113 | if (!request.includeLinkIndicator) |
| 114 | return; |
| 115 | |
| 116 | auto linkRange = makeRangeSelectingNodeContents(linkElement); |
| 117 | float deviceScaleFactor = page.corePage()->deviceScaleFactor(); |
| 118 | const float marginInPoints = request.linkIndicatorShouldHaveLegacyMargins ? 4 : 0; |
| 119 | |
| 120 | constexpr OptionSet<WebCore::TextIndicatorOption> textIndicatorOptions { |
| 121 | WebCore::TextIndicatorOption::TightlyFitContent, |
| 122 | WebCore::TextIndicatorOption::RespectTextColor, |
| 123 | WebCore::TextIndicatorOption::PaintBackgrounds, |
| 124 | WebCore::TextIndicatorOption::UseBoundingRectAndPaintAllContentForComplexRanges, |
| 125 | WebCore::TextIndicatorOption::IncludeMarginIfRangeMatchesSelection, |
| 126 | WebCore::TextIndicatorOption::ComputeEstimatedBackgroundColor |
| 127 | }; |
| 128 | auto textIndicator = WebCore::TextIndicator::createWithRange(linkRange, textIndicatorOptions, WebCore::TextIndicatorPresentationTransition::None, WebCore::FloatSize(marginInPoints * deviceScaleFactor, marginInPoints * deviceScaleFactor)); |
| 129 | |
| 130 | info.textIndicator = WTF::move(textIndicator); |
| 131 | } |
| 132 | |
| 133 | #if ENABLE(DATA_DETECTION)(defined 1 && 1) && PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 134 | |
| 135 | static void dataDetectorLinkPositionInformation(WebCore::Element& element, InteractionInformationAtPosition& info) |
| 136 | { |
| 137 | if (!WebCore::DataDetection::isDataDetectorLink(element)) |
| 138 | return; |
| 139 | |
| 140 | info.isDataDetectorLink = true; |
| 141 | info.dataDetectorBounds = info.bounds; |
| 142 | const int dataDetectionExtendedContextLength = 350; |
| 143 | info.dataDetectorIdentifier = WebCore::DataDetection::dataDetectorIdentifier(element); |
| 144 | if (auto* results = element.document().frame()->dataDetectionResultsIfExists()) |
| 145 | info.dataDetectorResults = results->documentLevelResults(); |
| 146 | |
| 147 | if (!WebCore::DataDetection::requiresExtendedContext(element)) |
| 148 | return; |
| 149 | |
| 150 | auto range = WebCore::makeRangeSelectingNodeContents(element); |
| 151 | info.textBefore = plainTextForDisplay(WebCore::rangeExpandedByCharactersInDirectionAtWordBoundary(makeDeprecatedLegacyPosition(range.start), |
| 152 | dataDetectionExtendedContextLength, WebCore::SelectionDirection::Backward)); |
| 153 | info.textAfter = plainTextForDisplay(WebCore::rangeExpandedByCharactersInDirectionAtWordBoundary(makeDeprecatedLegacyPosition(range.end), |
| 154 | dataDetectionExtendedContextLength, WebCore::SelectionDirection::Forward)); |
| 155 | } |
| 156 | |
| 157 | static void dataDetectorImageOverlayPositionInformation(const WebCore::HTMLElement& overlayHost, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 158 | { |
| 159 | RefPtr frame = overlayHost.document().frame(); |
| 160 | if (!frame) |
| 161 | return; |
| 162 | |
| 163 | auto elementAndBounds = WebCore::DataDetection::findDataDetectionResultElementInImageOverlay(request.point, overlayHost); |
| 164 | if (!elementAndBounds) |
| 165 | return; |
| 166 | |
| 167 | auto [foundElement, elementBounds] = *elementAndBounds; |
| 168 | auto identifierValue = parseInteger<uint64_t>(foundElement->attributeWithoutSynchronization(WebCore::HTMLNames::x_apple_data_detectors_resultAttr)); |
| 169 | if (!identifierValue || !*identifierValue) |
| 170 | return; |
| 171 | |
| 172 | auto identifier = ObjectIdentifier<WebCore::ImageOverlayDataDetectionResultIdentifierType>(*identifierValue); |
| 173 | |
| 174 | auto* dataDetectionResults = frame->dataDetectionResultsIfExists(); |
| 175 | if (!dataDetectionResults) |
| 176 | return; |
| 177 | |
| 178 | auto dataDetectionResult = retainPtr(dataDetectionResults->imageOverlayDataDetectionResult(identifier)); |
| 179 | if (!dataDetectionResult) |
| 180 | return; |
| 181 | |
| 182 | info.dataDetectorBounds = WTF::move(elementBounds); |
| 183 | info.dataDetectorResults = @[ dataDetectionResult.get() ]; |
| 184 | } |
| 185 | |
| 186 | #endif // ENABLE(DATA_DETECTION) && PLATFORM(IOS_FAMILY) |
| 187 | |
| 188 | static std::optional<std::pair<WebCore::RenderImage&, WebCore::Image&>> imageRendererAndImage(WebCore::Element& element) |
| 189 | { |
| 190 | CheckedPtr renderImage = dynamicDowncast<WebCore::RenderImage>(element.renderer()); |
| 191 | if (!renderImage) |
| 192 | return std::nullopt; |
| 193 | |
| 194 | if (!renderImage->cachedImage() || renderImage->cachedImage()->errorOccurred()) |
| 195 | return std::nullopt; |
| 196 | |
| 197 | RefPtr image = renderImage->cachedImage()->imageForRenderer(renderImage); |
| 198 | if (!image || image->width() <= 1 || image->height() <= 1) |
| 199 | return std::nullopt; |
| 200 | |
| 201 | return { { *renderImage, *image } }; |
| 202 | } |
| 203 | |
| 204 | #if PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 205 | static void videoPositionInformation(WebPage& page, WebCore::HTMLVideoElement& element, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 206 | { |
| 207 | info.elementContainsImageOverlay = WebCore::ImageOverlay::hasOverlay(element); |
| 208 | |
| 209 | if (!element.paused()) |
| 210 | return; |
| 211 | |
| 212 | CheckedPtr renderVideo = element.renderer(); |
| 213 | if (!renderVideo) |
| 214 | return; |
| 215 | |
| 216 | info.isPausedVideo = true; |
| 217 | |
| 218 | if (request.includeImageData) |
| 219 | info.image = createShareableBitmap(*renderVideo); |
| 220 | |
| 221 | info.hostImageOrVideoElementContext = page.contextForElement(element); |
| 222 | } |
| 223 | #endif // PLATFORM(IOS_FAMILY) |
| 224 | |
| 225 | static RefPtr<WebCore::HTMLVideoElement> hostVideoElementIgnoringImageOverlay(WebCore::Node& node) |
| 226 | { |
| 227 | if (WebCore::ImageOverlay::isInsideOverlay(node)) |
| 228 | return { }; |
| 229 | |
| 230 | if (RefPtr video = dynamicDowncast<WebCore::HTMLVideoElement>(node)) |
| 231 | return video; |
| 232 | |
| 233 | return dynamicDowncast<WebCore::HTMLVideoElement>(node.shadowHost()); |
| 234 | } |
| 235 | |
| 236 | #if PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 237 | static void imagePositionInformation(WebPage& page, WebCore::Element& element, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 238 | { |
| 239 | auto rendererAndImage = imageRendererAndImage(element); |
| 240 | if (!rendererAndImage) |
| 241 | return; |
| 242 | |
| 243 | auto& [renderImage, image] = *rendererAndImage; |
| 244 | info.isImage = true; |
| 245 | info.imageURL = page.applyLinkDecorationFiltering(protect(element.document())->completeURL(renderImage.cachedImage()->url().string()), WebCore::LinkDecorationFilteringTrigger::Unspecified); |
Call argument for 'this' parameter is uncounted and unsafe | |
| 246 | info.imageMIMEType = image.mimeType(); |
| 247 | info.isAnimatedImage = image.isAnimated(); |
| 248 | info.isAnimating = image.isAnimating(); |
| 249 | RefPtr htmlElement = dynamicDowncast<WebCore::HTMLElement>(element); |
| 250 | info.elementContainsImageOverlay = htmlElement && WebCore::ImageOverlay::hasOverlay(*htmlElement); |
| 251 | #if ENABLE(SPATIAL_IMAGE_DETECTION)(defined ENABLE_SPATIAL_IMAGE_DETECTION && ENABLE_SPATIAL_IMAGE_DETECTION ) |
| 252 | info.isSpatialImage = image.isSpatial(); |
| 253 | #endif |
| 254 | |
| 255 | if (request.includeSnapshot || request.includeImageData) |
| 256 | info.image = createShareableBitmap(renderImage, { WebCore::screenSize() * page.corePage()->deviceScaleFactor(), AllowAnimatedImages::Yes, UseSnapshotForTransparentImages::Yes }); |
| 257 | |
| 258 | info.hostImageOrVideoElementContext = page.contextForElement(element); |
| 259 | } |
| 260 | #endif // PLATFORM(IOS_FAMILY) |
| 261 | |
| 262 | static void boundsPositionInformation(WebCore::RenderObject& renderer, InteractionInformationAtPosition& info) |
| 263 | { |
| 264 | if (CheckedPtr renderImage = dynamicDowncast<WebCore::RenderImage>(renderer)) |
| 265 | info.bounds = renderImage->absoluteContentQuad().enclosingBoundingBox(); |
| 266 | else |
| 267 | info.bounds = renderer.absoluteBoundingBoxRect(); |
| 268 | |
| 269 | if (!renderer.document().frame()->isMainFrame()) { |
| 270 | RefPtr view = renderer.document().frame()->view(); |
| 271 | info.bounds = view->contentsToRootView(info.bounds); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | static void elementPositionInformation(WebPage& page, WebCore::Element& element, const InteractionInformationRequest& request, const WebCore::Node* innerNonSharedNode, InteractionInformationAtPosition& info) |
| 276 | { |
| 277 | Ref document = element.document(); |
| 278 | RefPtr<WebCore::Element> linkElement; |
| 279 | if (element.renderer() && element.renderer()->isRenderImage()) |
| 280 | linkElement = WebPage::containingLinkAnchorElement(element); |
| 281 | else if (element.isLink()) |
| 282 | linkElement = &element; |
| 283 | |
| 284 | info.isElement = true; |
| 285 | info.idAttribute = element.getIdAttribute(); |
| 286 | info.isImageOverlayText = WebCore::ImageOverlay::isOverlayText(innerNonSharedNode); |
| 287 | |
| 288 | info.title = element.attributeWithoutSynchronization(WebCore::HTMLNames::titleAttr).string(); |
| 289 | if (linkElement && info.title.isEmpty()) |
| 290 | info.title = element.innerText(); |
| 291 | #if PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 292 | if (element.renderer()) |
| 293 | info.touchCalloutEnabled = element.renderer()->style().touchCallout() == WebCore::Style::WebkitTouchCallout::Default; |
| 294 | #endif |
| 295 | |
| 296 | if (linkElement && !info.isImageOverlayText) { |
| 297 | info.isLink = true; |
| 298 | info.url = page.applyLinkDecorationFiltering(document->completeURL(linkElement->getAttribute(WebCore::HTMLNames::hrefAttr)), WebCore::LinkDecorationFilteringTrigger::Unspecified); |
| 299 | |
| 300 | linkIndicatorPositionInformation(page, *linkElement, request, info); |
| 301 | #if ENABLE(DATA_DETECTION)(defined 1 && 1) && PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 302 | dataDetectorLinkPositionInformation(element, info); |
| 303 | #endif |
| 304 | } |
| 305 | |
| 306 | RefPtr elementForScrollTesting = linkElement ? linkElement.get() : &element; |
| 307 | if (CheckedPtr renderer = elementForScrollTesting->renderer()) { |
| 308 | if (RefPtr scrollingCoordinator = page.scrollingCoordinator()) |
| 309 | info.containerScrollingNodeID = scrollingCoordinator->scrollableContainerNodeID(*renderer); |
| 310 | } |
| 311 | |
| 312 | #if PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 313 | info.needsPointerTouchCompatibilityQuirk = document->quirks().needsPointerTouchCompatibility(element); |
| 314 | #endif |
| 315 | |
| 316 | if (CheckedPtr renderer = element.renderer()) { |
| 317 | #if PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 318 | bool shouldCollectImagePositionInformation = renderer->isRenderImage(); |
| 319 | if (shouldCollectImagePositionInformation && info.isImageOverlayText) { |
| 320 | shouldCollectImagePositionInformation = false; |
| 321 | if (request.includeImageData) { |
| 322 | if (auto rendererAndImage = imageRendererAndImage(element)) { |
| 323 | auto& [renderImage, image] = *rendererAndImage; |
| 324 | info.imageURL = page.applyLinkDecorationFiltering(document->completeURL(renderImage.cachedImage()->url().string()), WebCore::LinkDecorationFilteringTrigger::Unspecified); |
| 325 | info.imageMIMEType = image.mimeType(); |
| 326 | info.image = createShareableBitmap(renderImage, { WebCore::screenSize() * page.corePage()->deviceScaleFactor(), AllowAnimatedImages::Yes, UseSnapshotForTransparentImages::Yes }); |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | if (shouldCollectImagePositionInformation) { |
| 331 | if (auto video = hostVideoElementIgnoringImageOverlay(element)) |
| 332 | videoPositionInformation(page, *video, request, info); |
| 333 | else |
| 334 | imagePositionInformation(page, element, request, info); |
| 335 | } |
| 336 | #endif // PLATFORM(IOS_FAMILY) |
| 337 | boundsPositionInformation(*renderer, info); |
| 338 | } |
| 339 | |
| 340 | info.elementContext = page.contextForElement(element); |
| 341 | } |
| 342 | |
| 343 | static void selectionPositionInformation(WebPage& page, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 344 | { |
| 345 | RefPtr localMainFrame = dynamicDowncast<WebCore::LocalFrame>(page.corePage()->mainFrame()); |
| 346 | if (!localMainFrame) |
| 347 | return; |
| 348 | |
| 349 | constexpr OptionSet<WebCore::HitTestRequest::Type> hitType { |
| 350 | WebCore::HitTestRequest::Type::ReadOnly, |
| 351 | WebCore::HitTestRequest::Type::Active, |
| 352 | WebCore::HitTestRequest::Type::AllowVisibleChildFrameContentOnly |
| 353 | }; |
| 354 | WebCore::HitTestResult result = localMainFrame->eventHandler().hitTestResultAtPoint(request.point, hitType); |
| 355 | RefPtr hitNode = result.innerNode(); |
| 356 | |
| 357 | // Hit test could return HTMLHtmlElement that has no renderer, if the body is smaller than the document. |
| 358 | if (!hitNode || !hitNode->renderer()) |
| 359 | return; |
| 360 | |
| 361 | CheckedPtr renderer = hitNode->renderer(); |
| 362 | |
| 363 | info.selectability = ([&] { |
| 364 | if (protect(renderer->style())->usedUserSelect() == WebCore::UserSelect::None) |
| 365 | return InteractionInformationAtPosition::Selectability::UnselectableDueToUserSelectNoneOrQuirk; |
| 366 | |
| 367 | if (RefPtr element = dynamicDowncast<WebCore::Element>(*hitNode)) { |
| 368 | if (WebPage::isAssistableElement(*element)) |
| 369 | return InteractionInformationAtPosition::Selectability::UnselectableDueToFocusableElement; |
| 370 | |
| 371 | if (hostVideoElementIgnoringImageOverlay(*hitNode)) |
| 372 | return InteractionInformationAtPosition::Selectability::UnselectableDueToMediaControls; |
| 373 | } |
| 374 | |
| 375 | if (protect(hitNode->document())->quirks().shouldAvoidStartingSelectionOnMouseDownOverPointerCursor(*hitNode)) |
| 376 | return InteractionInformationAtPosition::Selectability::UnselectableDueToUserSelectNoneOrQuirk; |
| 377 | |
| 378 | return InteractionInformationAtPosition::Selectability::Selectable; |
| 379 | })(); |
| 380 | info.isSelected = result.isSelected(); |
| 381 | |
| 382 | if (info.isLink || info.isImage) |
| 383 | return; |
| 384 | |
| 385 | boundsPositionInformation(*renderer, info); |
| 386 | |
| 387 | if (RefPtr element = dynamicDowncast<WebCore::Element>(*hitNode)) |
| 388 | info.idAttribute = element->getIdAttribute(); |
| 389 | |
| 390 | if (RefPtr attachment = dynamicDowncast<WebCore::HTMLAttachmentElement>(*hitNode)) { |
| 391 | info.isAttachment = true; |
| 392 | info.title = attachment->attachmentTitle(); |
| 393 | linkIndicatorPositionInformation(page, *attachment, request, info); |
| 394 | if (attachment->file()) |
| 395 | info.url = URL::fileURLWithFileSystemPath(attachment->file()->path()); |
| 396 | } |
| 397 | |
| 398 | for (RefPtr currentNode = hitNode; currentNode; currentNode = currentNode->parentOrShadowHostNode()) { |
| 399 | CheckedPtr renderer = currentNode->renderer(); |
| 400 | if (!renderer) |
| 401 | continue; |
| 402 | |
| 403 | CheckedRef style = renderer->style(); |
| 404 | if (style->usedUserSelect() == WebCore::UserSelect::None && style->userDrag() == WebCore::UserDrag::Element) { |
| 405 | info.prefersDraggingOverTextSelection = true; |
| 406 | break; |
| 407 | } |
| 408 | } |
| 409 | #if PLATFORM(MACCATALYST)(defined WTF_PLATFORM_MACCATALYST && WTF_PLATFORM_MACCATALYST ) |
| 410 | bool isInsideFixedPosition; |
| 411 | WebCore::VisiblePosition caretPosition(renderer->visiblePositionForPoint(request.point, WebCore::HitTestSource::User)); |
| 412 | info.caretRect = caretPosition.absoluteCaretBounds(&isInsideFixedPosition); |
| 413 | #endif |
| 414 | |
| 415 | #if ENABLE(MODEL_PROCESS)(defined 0 && 0) |
| 416 | if (is<WebCore::HTMLModelElement>(*hitNode)) |
| 417 | info.prefersDraggingOverTextSelection = true; |
| 418 | #endif |
| 419 | } |
| 420 | |
| 421 | static void textInteractionPositionInformation(WebPage& page, const WebCore::HTMLInputElement& input, const InteractionInformationRequest& request, InteractionInformationAtPosition& info) |
| 422 | { |
| 423 | if (!input.list()) |
| 424 | return; |
| 425 | |
| 426 | constexpr OptionSet<WebCore::HitTestRequest::Type> hitType { WebCore::HitTestRequest::Type::ReadOnly, WebCore::HitTestRequest::Type::Active, WebCore::HitTestRequest::Type::AllowVisibleChildFrameContentOnly }; |
| 427 | RefPtr localMainFrame = dynamicDowncast<WebCore::LocalFrame>(page.corePage()->mainFrame()); |
| 428 | if (!localMainFrame) |
| 429 | return; |
| 430 | WebCore::HitTestResult result = localMainFrame->eventHandler().hitTestResultAtPoint(request.point, hitType); |
| 431 | if (result.innerNode() == input.dataListButtonElement()) |
| 432 | info.preventTextInteraction = true; |
| 433 | } |
| 434 | |
| 435 | static bool canForceCaretForPosition(const WebCore::VisiblePosition& position) |
| 436 | { |
| 437 | RefPtr node = position.deepEquivalent().anchorNode(); |
| 438 | if (!node) |
| 439 | return false; |
| 440 | |
| 441 | CheckedPtr renderer = node->renderer(); |
| 442 | CheckedPtr style = renderer ? &renderer->style() : nullptr; |
| 443 | auto cursorType = style ? style->cursorType() : WebCore::CursorType::Auto; |
| 444 | |
| 445 | if (cursorType == WebCore::CursorType::Text) |
| 446 | return true; |
| 447 | |
| 448 | if (cursorType != WebCore::CursorType::Auto) |
| 449 | return false; |
| 450 | |
| 451 | if (node->hasEditableStyle()) |
| 452 | return true; |
| 453 | |
| 454 | if (!renderer) |
| 455 | return false; |
| 456 | |
| 457 | return renderer->isRenderText() && node->canStartSelection(); |
| 458 | } |
| 459 | |
| 460 | static CursorContext cursorContext(const WebCore::HitTestResult& hitTestResult, const InteractionInformationRequest& request) |
| 461 | { |
| 462 | CursorContext context; |
| 463 | RefPtr frame = hitTestResult.innerNodeFrame(); |
| 464 | if (!frame) |
| 465 | return context; |
| 466 | |
| 467 | // FIXME: Do we really need to set the cursor here if `includeCursorContext` is not set? |
| 468 | context.cursor = frame->eventHandler().selectCursor(hitTestResult, false); |
| 469 | |
| 470 | if (!request.includeCursorContext) |
| 471 | return context; |
| 472 | |
| 473 | RefPtr view = frame->view(); |
| 474 | if (!view) |
| 475 | return context; |
| 476 | |
| 477 | RefPtr node = hitTestResult.innerNode(); |
| 478 | if (!node) |
| 479 | return context; |
| 480 | |
| 481 | CheckedPtr renderer = node->renderer(); |
| 482 | if (!renderer) |
| 483 | return context; |
| 484 | |
| 485 | while (renderer && !is<WebCore::RenderBlockFlow>(*renderer)) |
| 486 | renderer = renderer->parent(); |
| 487 | |
| 488 | if (!renderer) |
| 489 | return context; |
| 490 | |
| 491 | // FIXME: We should be able to retrieve this geometry information without |
| 492 | // forcing the text to fall out of Simple Line Layout. |
| 493 | CheckedRef blockFlow = downcast<WebCore::RenderBlockFlow>(*renderer); |
| 494 | auto position = frame->visiblePositionForPoint(view->rootViewToContents(request.point)); |
| 495 | auto lineRect = position.absoluteSelectionBoundsForLine(); |
| 496 | bool isEditable = node->hasEditableStyle(); |
| 497 | |
| 498 | if (isEditable) |
| 499 | lineRect.setWidth(blockFlow->contentBoxWidth()); |
| 500 | |
| 501 | context.isVerticalWritingMode = !renderer->isHorizontalWritingMode(); |
| 502 | context.lineCaretExtent = view->contentsToRootView(lineRect); |
| 503 | |
| 504 | auto cursorTypeIs = [](const auto& maybeCursor, auto type) { |
| 505 | return maybeCursor.transform([type](const auto& cursor) { |
| 506 | return cursor.type() == type; |
| 507 | }).value_or(false); |
| 508 | }; |
| 509 | |
| 510 | bool lineContainsRequestPoint = context.lineCaretExtent.contains(request.point); |
| 511 | // Force an I-beam cursor if the page didn't request a hand, and we're inside the bounds of the line. |
| 512 | if (lineContainsRequestPoint && !cursorTypeIs(context.cursor, WebCore::Cursor::Type::Hand) && canForceCaretForPosition(position)) |
| 513 | context.cursor = WebCore::Cursor::fromType(WebCore::Cursor::Type::IBeam); |
| 514 | |
| 515 | if (!lineContainsRequestPoint && cursorTypeIs(context.cursor, WebCore::Cursor::Type::IBeam)) { |
| 516 | auto approximateLineRectInContentCoordinates = renderer->absoluteBoundingBoxRect(); |
| 517 | approximateLineRectInContentCoordinates.setHeight(protect(renderer->style())->computedLineHeight()); |
| 518 | context.lineCaretExtent = view->contentsToRootView(approximateLineRectInContentCoordinates); |
| 519 | if (!context.lineCaretExtent.contains(request.point) || !isEditable) |
| 520 | context.lineCaretExtent.setY(request.point.y() - context.lineCaretExtent.height() / 2); |
| 521 | } |
| 522 | |
| 523 | auto nodeShouldNotUseIBeam = ^(WebCore::Node* node) { |
| 524 | if (!node) |
| 525 | return false; |
| 526 | WebCore::RenderObject *renderer = node->renderer(); |
| 527 | if (!renderer) |
| 528 | return false; |
| 529 | return is<WebCore::RenderReplaced>(*renderer); |
| 530 | }; |
| 531 | |
| 532 | const auto& deepPosition = position.deepEquivalent(); |
| 533 | context.shouldNotUseIBeamInEditableContent = nodeShouldNotUseIBeam(node) || nodeShouldNotUseIBeam(deepPosition.computeNodeBeforePosition()) || nodeShouldNotUseIBeam(deepPosition.computeNodeAfterPosition()); |
| 534 | return context; |
| 535 | } |
| 536 | |
| 537 | static void animationPositionInformation(WebPage& page, const InteractionInformationRequest& request, const WebCore::HitTestResult& hitTestResult, InteractionInformationAtPosition& info) |
| 538 | { |
| 539 | #if ENABLE(ACCESSIBILITY_ANIMATION_CONTROL)(defined 1 && 1) |
| 540 | if (!request.gatherAnimations) |
| 541 | return; |
| 542 | |
| 543 | for (const auto& node : hitTestResult.listBasedTestResult()) { |
| 544 | RefPtr element = dynamicDowncast<WebCore::Element>(node.ptr()); |
| 545 | if (!element) |
| 546 | continue; |
| 547 | |
| 548 | auto rendererAndImage = imageRendererAndImage(*element); |
| 549 | if (!rendererAndImage) |
| 550 | continue; |
| 551 | |
| 552 | Ref image = rendererAndImage->second; |
| 553 | if (!image->isAnimated()) |
| 554 | continue; |
| 555 | |
| 556 | if (auto elementContext = page.contextForElement(*element)) |
| 557 | info.animationsAtPoint.append({ WTF::move(*elementContext), image->isAnimating() }); |
| 558 | } |
| 559 | #else |
| 560 | UNUSED_PARAM(page)(void)page; |
| 561 | UNUSED_PARAM(request)(void)request; |
| 562 | UNUSED_PARAM(info)(void)info; |
| 563 | #endif // ENABLE(ACCESSIBILITY_ANIMATION_CONTROL) |
| 564 | } |
| 565 | |
| 566 | static RefPtr<WebCore::LocalDOMWindow> windowWithDoubleClickEventListener(RefPtr<WebCore::LocalFrame> frame) |
| 567 | { |
| 568 | if (!frame) |
| 569 | return nullptr; |
| 570 | |
| 571 | RefPtr window = frame->window(); |
| 572 | if (!window || !window->hasEventListeners(WebCore::eventNames().dblclickEvent)) |
| 573 | return nullptr; |
| 574 | |
| 575 | return window; |
| 576 | } |
| 577 | |
| 578 | InteractionInformationAtPosition positionInformationForWebPage(WebPage& page, const InteractionInformationRequest& request) |
| 579 | { |
| 580 | InteractionInformationAtPosition info; |
| 581 | info.request = request; |
| 582 | |
| 583 | WebCore::FloatPoint adjustedPoint; |
| 584 | RefPtr localMainFrame = WTF::protect(page.corePage())->localMainFrame(); |
| 585 | if (!localMainFrame) |
| 586 | return info; |
| 587 | |
| 588 | RefPtr nodeRespondingToClickEvents = localMainFrame->nodeRespondingToClickEvents(request.point, adjustedPoint); |
| 589 | |
| 590 | info.isContentEditable = nodeRespondingToClickEvents && nodeRespondingToClickEvents->isContentEditable(); |
| 591 | info.adjustedPointForNodeRespondingToClickEvents = adjustedPoint; |
| 592 | |
| 593 | if (request.includeHasDoubleClickHandler) |
| 594 | info.hitNodeOrWindowHasDoubleClickListener = localMainFrame->nodeRespondingToDoubleClickEvent(request.point, adjustedPoint) || windowWithDoubleClickEventListener(localMainFrame); |
| 595 | |
| 596 | auto hitTestRequestTypes = OptionSet<WebCore::HitTestRequest::Type> { |
| 597 | WebCore::HitTestRequest::Type::ReadOnly, |
| 598 | WebCore::HitTestRequest::Type::AllowFrameScrollbars, |
| 599 | WebCore::HitTestRequest::Type::AllowVisibleChildFrameContentOnly, |
| 600 | }; |
| 601 | |
| 602 | #if ENABLE(ACCESSIBILITY_ANIMATION_CONTROL)(defined 1 && 1) |
| 603 | if (request.gatherAnimations) { |
| 604 | hitTestRequestTypes.add(WebCore::HitTestRequest::Type::IncludeAllElementsUnderPoint); |
| 605 | hitTestRequestTypes.add(WebCore::HitTestRequest::Type::CollectMultipleElements); |
| 606 | } |
| 607 | #endif // ENABLE(ACCESSIBILITY_ANIMATION_CONTROL) |
| 608 | |
| 609 | auto& eventHandler = localMainFrame->eventHandler(); |
| 610 | auto hitTestResult = eventHandler.hitTestResultAtPoint(request.point, hitTestRequestTypes); |
| 611 | |
| 612 | #if ENABLE(PDF_PLUGIN)(defined 1 && 1) |
| 613 | RefPtr pluginView = hitTestResult.isOverWidget() ? WebPage::pluginViewForFrame(WTF::protect(hitTestResult.innerNodeFrame())) : nullptr; |
| 614 | #endif |
| 615 | |
| 616 | info.cursorContext = [&] { |
| 617 | if (request.includeCursorContext) { |
| 618 | #if ENABLE(PDF_PLUGIN)(defined 1 && 1) && PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 619 | if (pluginView) |
| 620 | return pluginView->cursorContext(request.point); |
| 621 | #endif |
| 622 | } |
| 623 | return cursorContext(hitTestResult, request); |
| 624 | }(); |
| 625 | |
| 626 | if (page.focusedElement()) |
| 627 | focusedElementPositionInformation(page, *page.focusedElement(), request, info); |
| 628 | |
| 629 | RefPtr hitTestNode = hitTestResult.innerNonSharedNode(); |
| 630 | if (RefPtr element = dynamicDowncast<WebCore::Element>(nodeRespondingToClickEvents)) { |
| 631 | elementPositionInformation(page, *element, request, hitTestNode.get(), info); |
| 632 | |
| 633 | if (info.isLink && !info.isImage && request.includeSnapshot) |
| 634 | info.image = page.shareableBitmapSnapshotForNode(*element); |
| 635 | } |
| 636 | |
| 637 | #if ENABLE(DATA_DETECTION)(defined 1 && 1) && PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 638 | auto hitTestedImageOverlayHost = ([&]() -> RefPtr<WebCore::HTMLElement> { |
| 639 | if (!hitTestNode || !info.isImageOverlayText) |
| 640 | return nullptr; |
| 641 | |
| 642 | RefPtr htmlElement = dynamicDowncast<WebCore::HTMLElement>(hitTestNode->shadowHost()); |
| 643 | if (!htmlElement || !WebCore::ImageOverlay::hasOverlay(*htmlElement)) |
| 644 | return nullptr; |
| 645 | |
| 646 | return htmlElement; |
| 647 | })(); |
| 648 | |
| 649 | if (hitTestedImageOverlayHost) |
| 650 | dataDetectorImageOverlayPositionInformation(*hitTestedImageOverlayHost, request, info); |
| 651 | #endif // ENABLE(DATA_DETECTION) && PLATFORM(IOS_FAMILY) |
| 652 | |
| 653 | #if PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 654 | if (!info.isImage && request.includeImageData && hitTestNode) { |
| 655 | if (auto video = hostVideoElementIgnoringImageOverlay(*hitTestNode)) |
| 656 | videoPositionInformation(page, *video, request, info); |
| 657 | else if (RefPtr img = dynamicDowncast<WebCore::HTMLImageElement>(hitTestNode)) |
| 658 | imagePositionInformation(page, *img, request, info); |
| 659 | } |
| 660 | #endif // PLATFORM(IOS_FAMILY) |
| 661 | |
| 662 | animationPositionInformation(page, request, hitTestResult, info); |
| 663 | selectionPositionInformation(page, request, info); |
| 664 | |
| 665 | // Prevent the callout bar from showing when tapping on the datalist button. |
| 666 | if (RefPtr input = dynamicDowncast<WebCore::HTMLInputElement>(nodeRespondingToClickEvents)) |
| 667 | textInteractionPositionInformation(page, *input, request, info); |
| 668 | |
| 669 | #if ENABLE(MODEL_PROCESS)(defined 0 && 0) |
| 670 | if (RefPtr modelElement = dynamicDowncast<WebCore::HTMLModelElement>(hitTestNode)) |
| 671 | info.isInteractiveModel = modelElement->model() && modelElement->supportsStageModeInteraction(); |
| 672 | #endif |
| 673 | |
| 674 | #if ENABLE(PDF_PLUGIN)(defined 1 && 1) && PLATFORM(IOS_FAMILY)(defined 1 && 1) |
| 675 | if (pluginView) { |
| 676 | if (auto&& [url, bounds, textIndicator] = pluginView->linkDataAtPoint(request.point); !url.isEmpty()) { |
| 677 | info.isLink = true; |
| 678 | info.url = WTF::move(url); |
| 679 | info.bounds = enclosingIntRect(bounds); |
| 680 | info.textIndicator = WTF::move(textIndicator); |
| 681 | } |
| 682 | info.isInPlugin = true; |
| 683 | } |
| 684 | #endif // ENABLE(PDF_PLUGIN) && PLATFORM(IOS_FAMILY) |
| 685 | |
| 686 | return info; |
| 687 | } |
| 688 | |
| 689 | }; |
| 690 | |
| 691 | #endif // PLATFORM(COCOA) |