HtmlExtensions

static class · namespace z3n7 · source Browser/HtmlExtensions.cs

public static class HtmlExtensions

Helpers for ZennoPoster HtmlElement: centre point, QR decoding, XPath.

Methods#

Center#

public static Point Center(this HtmlElement element, Point origin)

Extension method for HtmlElement. source

Centre of the element relative to origin (bounding-client size when known, else the element size).

Returns: The point. Throws when the element is null or void.

DecodeQr#

public static string DecodeQr(this HtmlElement element)

Extension method for HtmlElement. source

Draws the element and decodes a QR code from the picture (ZXing).

Returns: The decoded text, or one of elementZeroSize, bitmapIsNull, qrIsNull, or an exception message. Never throws.

GetXPath#

public static string GetXPath(this HtmlElement element)

Extension method for HtmlElement. source

Builds an XPath for the element by walking up to body. Each step uses @id, else the first class, else @name, else the position among same-tag siblings.

Returns: The XPath, starting with //*; empty for a void element.

VerifyXPath#

public static bool VerifyXPath(Tab tab, HtmlElement originalElement, string xpath)

source

Checks that the first element found by xpath in tab has the same outer HTML as originalElement.