dom_tools library

DOM Tools Library

Classes

AnyUriPolicy
Allows anu Uri policy.
CanvasImageViewer
An image viewer that can render points, rectangles, clip and grid over.
Color
Represents a color.
CSSAnimationConfig
CSSAnimationConfigElements
CSS animation configuration for a List<Element>.
CSSAnimationConfigGroup
CSS animation configuration for a group of CSSAnimationConfig.
CSSThemeSet
A Theme set, with multiples themes.
CSSValueBase
DataAssets
A collections of assets (DataURL, Blob, MediaSource) that can be accessed by an ObjectURL, avoiding usage and encoding to data URL (base64).
DataStorage
Represents a persistent storage in the browser.
DOMTreeReferenceMap<V>
A TreeReferenceMap for DOM Nodes.
FilterResult
Filter result.
HSLColor
A color represented using alpha, hue, saturation, and lightness.
HSVColor
A color represented using alpha, hue, saturation, and value.
ImagePerspectiveFilter
A filter that applies a perspective to an image.
ImagePerspectiveFilterCache
A cache for perspective filers.
ImageScaledCache
A cache for scaled images.
Label<T extends num>
State
A state stored in DataStorage.
StorageValue
Represents a value stored in State.
StyleColor
Specifies a CSS color.
TextStyle
Specifies a CSS text style.
TrackElementInViewport
Tracks a DOM Element to identify when its visible in viewport.
TrackElementResize
Tracks a DOM Element to identify when its size changes.
TrackElementValue
Tracks a DOM Element to identify when a value changes.
ViewerElement<T>
Represents an element in the CanvasImageViewer.

Enums

DataStorageType
Type of DataStorage.
EditionType
The type of edition for CanvasImageViewer.
FontStyle
Specifies a CSS font style.
FontWeight
Specifies a CSS font weight.
Quality
Quality of an image.
StateOperation
State operation.
TouchDeviceDetection
Status type of touch device detection.

Constants

codeTheme0 → const Map<String, TextStyle>
codeTheme1 → const Map<String, TextStyle>
codeTheme2 → const Map<String, TextStyle>
cssMaxZIndex → const int

Properties

codeTheme → CSSThemeSet
final
deviceHeight → int?
no setter
deviceWidth → int?
no setter
isExtraLargeDevice → bool
no setter
isExtraSmallDevice → bool
no setter
isLargeDevice → bool
no setter
isLargeDeviceOrHigher → bool
no setter
isLargeDeviceOrLower → bool
no setter
isMediumDevice → bool
no setter
isMediumDeviceOrLHigher → bool
no setter
isMediumDeviceOrLower → bool
no setter
isSmallDevice → bool
no setter
isSmallDeviceOrHigher → bool
no setter
isSmallDeviceOrLower → bool
no setter
onDetectTouchDevice → EventStream<TouchDeviceDetection>
Will fire a TouchDeviceDetection when detection finishes.
final

Functions

addCSSCode(String cssCode) → Future<bool>
Adds a CSS code (cssCode) into DOM.
addCssSource(String cssSource, {int? insertIndex}) → Future<bool>
Add a CSS path using a link element into head DOM node.
addElementsClasses(Iterable<Element> elements, Iterable<String> classes) → bool
Add to elements a set of classes. Will remove classes starting with '!'.
addJavaScriptCode(String scriptCode) → Future<bool>
Adds a JavaScript code (scriptCode) into DOM.
addJavaScriptSource(String scriptSource, {bool addToBody = false, bool async = false}) → Future<bool>
Adds a JavaScript path (scriptSource] into DOM.
addJSFunction(String name, List<String> parameters, String body) → Future<bool>
Adds a JavaScript function into DOM.
animateCSSSequence(Iterable<CSSAnimationConfig> animationsConfig, {Duration? initialDelay, int? repeat, bool? repeatInfinity}) → Future<void>?
Sames animateCSS but runs animationsConfig in sequence;
appendElementInnerHTML(Element element, String html, {NodeValidator? validator}) → void
Appends to the inner HTML of element with parsed result of html.
applyCSS(CssStyleDeclaration css, Element element, [List<Element>? extraElements]) → bool
Applies css to element and extraElements list if present.
applyPerspective(CanvasImageSource image, List<Point<num>> perspective) → FilterResult?
Apply perspective filter to image.
asCssStyleDeclaration(dynamic css) → CssStyleDeclaration
Parses dynamic css as CssStyleDeclaration.
blockHorizontalScrollTraverse(Element element) → void
Blocks a scroll event in the horizontal direction that traverses the element.
blockHorizontalScrollTraverseEvent(Element element, WheelEvent wheelEvent) → bool
Blocks a wheelEvent in the horizontal direction that traverses the element.
blockScrollTraverse(Element element) → void
Blocks a scroll event in the vertical and horizontal directions that traverses the element.
blockVerticalScrollTraverse(Element element) → void
Blocks a scroll event in the vertical direction that traverses the element.
blockVerticalScrollTraverseEvent(Element element, WheelEvent wheelEvent) → bool
Blocks a wheelEvent in the vertical direction that traverses the element.
buildMetaContent(Map<String, String?> map) → String
Builds a meta content from map.
callJSFunction(String method, [List? args]) → dynamic
Calls JavaScript a function method with args.
callJSObjectMethod(Object o, String method, [List? args]) → dynamic
Calls JavaScript a method in object o with args.
canvasToImageElement(CanvasElement canvas, [String? mimeType, num? quality]) → ImageElement
Converts canvas to ImageElement
clearSelections() → void
Clears selected text in vieport.
copyElementToClipboard(Element element) → bool
Copies element text to Clipboard.
copyPoints(List<Point<num>> points) → List<Point<num>>
Makes a copy of points.
createDiv([bool inline = false, String? html, NodeValidator? validator]) → DivElement
Creates a div. inline If true sets display: inline-block. html The HTML to parse as content.
createDivInline([String? html]) → DivElement
Creates a div with display: inline-block.
createDivInlineBlock() → DivElement
Creates a div with display: inline-block.
createHTML([String? html, NodeValidator? validator]) → Element
Creates a HTML Element. Returns 1st node form parsed HTML.
createImageElementFromBase64(String? base64, [String? mimeType]) → ImageElement?
Creates an image from a Base-64 with mimeType.
createImageElementFromFile(File file) → Future<ImageElement>
Creates an image from a file.
createLabel([String? html, NodeValidator? validator]) → LabelElement
Creates a label element.
createScaledImage(CanvasImageSource image, int width, int height, double scale) → CanvasImageSource
Creates a new image from image, of width and height, to a scale.
createSpan([String? html, NodeValidator? validator]) → SpanElement
Creates a span element.
createStandardNodeValidator({bool svg = true, bool allowSvgForeignObject = false}) → NodeValidatorBuilder
cropImage(CanvasImageSource image, int x, int y, int width, int height) → CanvasElement?
Crops the image using coordinates x, y, width and height, returning new image (CanvasElement).
cropImageByRectangle(CanvasImageSource image, Rectangle<num>? crop) → CanvasElement?
Crops an image using a Rectangle (crop), delegating to method cropImage,
dataURLToBlob(DataURLBase64 dataURL) → Blob
Converts a dataURL to a Blob.
defineCSS(CssStyleDeclaration? currentCSS, CssStyleDeclaration? appendCSS, [dynamic defaultCSS]) → CssStyleDeclaration
Defines a new CssStyleDeclaration merging currentCSS and appendCSS.
detectTouchDevice() → TouchDeviceDetection?
Starts touch device detection. Returns the current status.
disableDoubleClicks() → void
Disables browser double clicks/tap.
disableScrolling() → void
Disables scrolling in browser.
disableZooming() → void
Disables browser zooming.
downloadBlob(Blob blob, String fileName) → void
Downloads blob of type mimeType, saving a file with fileName.
downloadBytes(List<int> bytes, MimeType mimeType, String fileName) → void
Downloads bytes of type mimeType, saving a file with fileName.
downloadContent(List<String> content, MimeType mimeType, String fileName) → void
Downloads content of type mimeType, saving a file with fileName.
downloadDataURL(DataURLBase64 dataURL, String fileName) → void
Downloads dataURL, saving a file with fileName.
elementMatchesAttribute(Element element, String attributeName, dynamic attributeValue) → bool
Returns true if element matches attributeName and attributeValue.
elementMatchesAttributes(Element element, Map<String, dynamic> attributes) → bool
Returns true if element matches attributes.
elementOnLoad(ImageElement img) → Future<bool>
Returns a Future<bool> for when img loads.
enableScrolling() → void
Enables scrolling in browser.
evalJS(String scriptCode) → dynamic
Call eval() with the content of scriptCode and returns the result.
getAllCssRuleBySelector(Pattern targetSelector, CssStyleSheet? sheet) → List<CssRule>
Returns a List<CssRule> for targetSelector.
getAllCssStyleSheet() → List<CssStyleSheet>
Returns all current CssStyleSheet.
getAllMediaCssRule(String mediaCondition) → List<CssMediaRule>
Returns a list of @media CssRule with mediaCondition.
getAllOutOfViewportMediaCssRule(int viewportWidth, dynamic viewportHeight) → List<CssMediaRule>
Returns all CssMediaRule not applied for viewportWidth and viewportHeight.
getAllOutOfViewportMediaCssRuleAsClassRule(int viewportWidth, dynamic viewportHeight, String targetClass) → List<String>
Transforms all CssMediaRule to targetClass rule not applied for viewportWidth and viewportHeight.
getAllViewportMediaCssRule(int viewportWidth, dynamic viewportHeight) → List<CssMediaRule>
Returns all CssMediaRule applied for viewportWidth viewportHeight.
getAllViewportMediaCssRuleAsClassRule(int viewportWidth, dynamic viewportHeight, String targetClass) → List<String>
Transforms all CssMediaRule to targetClass rule applied for viewportWidth and viewportHeight.
getAnchorElementByHREF(String href) → AnchorElement?
Selects an AnchorElement in DOM with href.
getComputedStyle({Element? parent, Element? element, String? classes, String? style, bool? hidden}) → CssStyleDeclaration
Returns a CssStyleDeclaration from an element.
getElementAllCssProperties(Element element) → List<String>
Returns a list of CSS properties associated with element
getElementAllCssRule(Element element) → List<CssRule>
Returns a list of CssRule associated with element.
getElementAttribute(Element element, Object? key) → String?
Returns element attribute with key.
getElementAttributeRegExp(Element element, RegExp key) → String?
Returns element attribute with RegExp key.
getElementAttributeStr(Element element, String key) → String?
Returns element attribute with String key.
getElementByHREF(String tag, String href) → Element?
Selects an Element in DOM with tag and href.
getElementBySRC(String tag, String src) → Element?
Selects an Element in DOM with tag and src.
getElementByValues<V>(String tag, ElementValueGetter getter, List<V> values, [ElementValueGetter? getter2, List<V>? values2]) → Element?
selects in DOM an Element with tag and one of values provided by getter.
getElementDocumentPosition(Element element) → Pair<num>
Returns the X and Y position of Element int the Document.
getElementHeight(Element element, [int? def]) → int?
Returns element height. Tries to use 'offsetHeight' or 'style.height' values.
getElementHREF(Element element) → String?
Returns href value for different Element types.
getElementPreComputedStyle(Element element) → CssStyleDeclaration
Returns a CssStyleDeclaration of the pre-computed CSS properties of element.
getElementSRC(Element element) → String?
Returns src value for different Element types.
getElementsWithAttributes(String tag, Map<String, dynamic> matchAttributes) → List<Element>
Selects elements from DOM with tag and matches attribute.
getElementTagName(Node node) → String?
Returns the node tag name. Returns null if node is not an Element.
getElementValue(Element element, [String? def]) → String?
Gets the element value depending of identified type.
getElementWidth(Element element, [int? def]) → int?
Returns element width. Tries to use 'offsetWidth' or 'style.width' values.
getElementZIndex(Element? element, [String? def]) → String?
Returns the element z-index or element.parent z-index recursively.
getFileMimeType(File file, [String accept = '']) → MimeType?
Returns the file MimeType.
getImageDimension(CanvasImageSource image) → Rectangle<int>?
Gets the width and height from image (CanvasImageSource).
getLinkElementByHREF(String href, [String? rel]) → LinkElement?
Selects an LinkElement in DOM with href.
getMetaTagsContentWithName(String name) → List<String?>
Returns a list of meta contet with name.
getMetaTagsWithName(String name) → List<Element>
Returns a list of meta Element with name.
getParentElement(Element element, {bool validator(Element parent)?, int maxLevels = 1000}) → Element?
Returns the parent of element applying validator and maxLevels.
getScriptElementBySRC(String src) → ScriptElement?
Selects an ScriptElement in DOM with src.
getURLData(String url, {String? user, String? password, bool withCredentials = true}) → Future<Uint8List>
Makes a HTTP request and returns url content as Uint8List.
getVisibleNode(Element? element) → Element?
Get the first visible element in the hierarchy.
htmlToText(String html, [NodeValidator? validator]) → String?
Transform html to plain text.
isCssEmpty(CssStyleDeclaration css) → bool
Returns true if CssStyleDeclaration is empty.
isCssNotEmpty(CssStyleDeclaration css) → bool
Returns true if CssStyleDeclaration is not empty.
isElementWithHREF(Element element) → bool
Returns true if element type can have href attribute.
isElementWithSRC(Element element) → bool
Returns true if element type can have src attribute.
isInDOM(dynamic element) → bool
Returns true if element is in DOM tree.
isInlineElement(DivElement element, {bool checkBootstrapClasses = true}) → bool
Returns true if element display property is inline.
isInViewport(Element element, {bool fully = false}) → bool
Returns true if element is visible in viewport.
isMobileAppStatusBarTranslucent() → bool
Returns true if meta tag of name apple-mobile-web-app-status-bar-style is translucent.
isNodeInDOM(Node node) → bool
Returns true if node is in DOM tree.
isOrientationInLandscapeMode() → bool
Returns true if device orientation is in Landscape mode.
isOrientationInPortraitMode() → bool
Returns true if device orientation is in Portrait mode.
isSafariIOS() → bool
jsArrayToList(JsArray? a) → List?
Converts a JsArray a to a List. Also converts values using jsToDart.
jsObjectKeys(JsObject o) → List<String>
Returns the keys of JsObject o.
jsObjectToMap(JsObject? o) → Map?
Converts a JsObject o to a Map. Also converts keys and values using jsToDart.
jsToDart(Object? o) → Object?
Converts o to Dart primitives or collections.
lerpDouble(num a, num b, double t) → double?
loadCSS(String cssClassPrefix, Map<String, CSSValueBase>? css) → void
Loads css dynamically.
mapJSFunction(String jsFunctionName, MappedFunction f) → void
Maps a JavaScript function to a Dart function.
markdownToDiv(String markdown, {bool normalize = true, Iterable<BlockSyntax>? blockSyntaxes, Iterable<InlineSyntax>? inlineSyntaxes, ExtensionSet? extensionSet, Resolver? linkResolver, Resolver? imageLinkResolver, bool inlineOnly = false}) → DivElement
Converts a markdown document into a HTML in a div node.
markdownToHtml(String markdown, {bool normalize = true, Iterable<BlockSyntax>? blockSyntaxes, Iterable<InlineSyntax>? inlineSyntaxes, ExtensionSet? extensionSet, Resolver? linkResolver, Resolver? imageLinkResolver, bool inlineOnly = false}) → String
Converts a markdown document into a HTML string.
measureText(String text, {required String fontFamily, required Object fontSize, bool bold = false}) → Dimension?
nodeTreeContains(Node rootNode, Node target) → bool
Returns true if rootNode contains target.
nodeTreeContainsAny(Node rootNode, Iterable<Node> list) → bool
Returns true if rootNode contains any Node in list.
normalizeIndent(String text) → String
Normalizes a indent, removing the common/global indent of the code.
numsToPoints(List<num> perspective) → List<Point<num>>
Converts a List<num>, as pairs, to a List<Point>.
onOrientationchange(EventListener listener) → bool
Attaches listener to orientationchange event.
parseCSSLength(String cssValue, {String? unit, int? def, bool allowPXWithoutSuffix = false}) → num?
Parses a CSS length, using optional unit.
parseCssRuleSelectors(CssRule cssRule) → List<String>
Parses the selectors of cssRule.
parseCssRuleTextProperties(String? cssRuleText) → String
Returns a list of properties of the CssRule text.
parseCssRuleTextSelectors(String? cssRuleText) → List<String>
Returns a list of selectors of the CssRule text.
parseMetaContent(String content) → Map<String, String?>
Parses a meta content to Map<String,String>.
prefetchHref(String href, {int? insertIndex, bool? preLoad}) → Future<bool>
Prefetch a HREF using a link element into head DOM node.
readFileDataAsArrayBuffer(File file) → Future<Uint8List?>
Reads file as Uint8List.
readFileDataAsBase64(File file) → Future<String?>
Reads file as Base64 String.
readFileDataAsDataURLBase64(File file, [String accept = '']) → Future<String?>
Reads file as DATA URL Base64 String.
readFileDataAsText(File file) → Future<String?>
Reads file as text.
readFileInputElementAsArrayBuffer(FileUploadInputElement? input, [bool removeExifFromImage = false]) → Future<Uint8List?>
Reads selected file of input as Uint8List.
readFileInputElementAsBase64(FileUploadInputElement? input, [bool removeExifFromImage = false]) → Future<String?>
Reads selected file of input as Base64.
readFileInputElementAsDataURLBase64(FileUploadInputElement? input, [bool removeExifFromImage = false]) → Future<String?>
Reads selected file of input as DATA URL Base64.
readFileInputElementAsString(FileUploadInputElement? input, [bool removeExifFromImage = false]) → Future<String?>
Reads selected file of input as String.
redirectOnTouchEndToMouseEvent(Element element) → void
Redirects element.onTouchEnd to element.onMouseUp as MouseEvent.
redirectOnTouchMoveToMouseEvent(Element element) → void
Redirects element.onTouchMove to element.onMouseMove as MouseEvent.
redirectOnTouchStartToMouseEvent(Element element) → void
Redirects element.onTouchStart to element.onMouseDown as MouseEvent.
reloadAssets(Map<String, String> assetsURLAndTag, {Duration? timeout}) → Future<bool>
Reloads an asset (img, audi or video), forcing reload of asset URL.
reloadIframe(IFrameElement iFrame, [bool? forceGet]) → Future<bool>
Reloads an IFrame document.
removeElementBackgroundBlur(Element element, [int? blurSize]) → void
Removes element background blur effect, set by setElementBackgroundBlur.
removeElementScrollColors(Element element) → List<String>?
Removes element scroll colors CSS properties set by setElementScrollColors.
removeExifFromImageFile(File file) → Future<String?>
Removes Exif from JPEG file.
replaceElement(Node n1, Node n2) → bool
Replaces n1 with n2 in n1 parent.
resetZoom() → void
Resets viewport zoom.
rotateCanvasImageSource(CanvasImageSource image, int width, int height, [dynamic angleDegree = 90]) → CanvasElement
Rotates image (a CanvasImageSource) with angleDegree.
rotateImageElement(ImageElement image, [dynamic angleDegree = 90]) → CanvasElement
Rotates image with angleDegree.
scalePoints(List<Point<num>> points, double scale) → List<Point<num>>
Scales points to scale.
scalePointsXY(List<Point<num>> points, double scaleX, double scaleY) → List<Point<num>>
Scales points to scaleX and scaleY.
scrollTo(num? x, num? y, {bool smooth = true, int? delayMs, Object? scrollable}) → void
Scrolls viewport to x,y.
scrollToBottom({bool smooth = true, int? delayMs}) → void
Scrolls viewport to the bottom.
scrollToElement(Element element, {bool centered = true, bool vertical = true, bool horizontal = true, bool smooth = true, int? translateX, int? translateY, Object? scrollable}) → void
Scrolls the viewport to the element.
scrollToLeft({bool smooth = true, int? delayMs}) → void
Scrolls viewport to the left border.
scrollToRight({bool smooth = true, int? delayMs}) → void
Scrolls viewport to the right border.
scrollToTop({bool smooth = true, int y = 0, bool fixSafariIOS = false, int? delayMs}) → void
Scrolls viewport to the top.
scrollToTopDelayed(int delayMs) → void
Use scrollToTop instead.
selectCssRuleWithSelector(Pattern targetSelector) → List<CssRule>
Returns a list of CssRule with targetSelector patterns.
setDivCentered(DivElement div, {bool centerVertically = true, bool centerHorizontally = true, bool checkBootstrapClasses = true}) → void
Sets div as centered content, using display property as table and sub div elements display property as table-cell.
setElementBackgroundBlur(Element element, [int? blurSize]) → void
Sets element background as a blur effect of size blurSize. Uses CSS property backdrop-filter.
setElementHREF(Element element, String href) → bool
Sets element href depending of the identified type.
setElementInnerHTML(Element element, String html, {NodeValidator? validator}) → void
Sets the inner HTML of element with parsed result of html.
setElementScrollColors(Element element, int scrollWidth, String scrollButtonColor, [String? scrollBgColor]) → String?
Sets element scroll colors, using standard CSS property scrollbar-color and webkit pseudo element ::-webkit-scrollbar-thumb and ::-webkit-scrollbar-track
setElementSRC(Element element, String src) → bool
Sets the element src depending of the identified type.
setElementValue(Element? element, String value) → bool
Sets the element value depending of the identified type.
setMetaViewportScale({String? minimumScale, String? maximumScale}) → bool
Sets the meta viewport with minimumScale and maximumScale.
setTreeElementsBackgroundBlur(Element element, String className) → void
setTreeElementsDivCentered(Element element, String className, {bool centerVertically = true, bool centerHorizontally = true}) → void
Set all element sub div with className to centered content.
setZoom(String zoom) → void
Sets the viewport zoom.
showDialogElement(Element content, {double? transparency, String? padding}) → DivElement
Shows an Element dialog.
showDialogHTML(String? html, {double? transparency, String? padding, NodeValidator? validator}) → DivElement?
Shows a html dialog.
showDialogImage(String src) → void
Shows an image (src) dialog.
showDialogText(String? text, {double? transparency, String? padding}) → DivElement?
Shows a text dialog.
toCanvasElement(CanvasImageSource imageSource, int width, int height) → CanvasElement
Converts imageSource to CanvasElement.
toDataURLBase64(String? mediaType, String base64) → String
Builds a DATA URL string.
toHTML(Element element) → String
Converts element to HTML.
touchEventToMouseEvent(TouchEvent event) → MouseEvent?
Converts a TouchEvent event to a MouseEvent.
translatePoints(List<Point<num>> points, num x, num y) → List<Point<num>>
Translate pints in x and y.

Typedefs

AnimationCallback = void Function()
ElementValueGetter<T> = T? Function(Element element)
Returns a value from an Element.
FunctionTest = bool Function()
ImageFilter = CanvasImageSource Function(CanvasImageSource? image, int width, int height)
Applies a filter to image, of width and height.
MappedFunction = dynamic Function(dynamic o)
MatchesValue = bool Function(String value)
OnElementEvent = void Function(Element element)
OnElementTrackValueEvent<T> = bool Function(Element element, T? value)
StateEventListener = void Function(StateOperation op, State state, String key, dynamic value)
StateKeyListener = void Function(dynamic value)
ValueCopier<T> = T? Function(T? value)