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com.vaadin.flow.server.
Package com.vaadin.flow.server

Class PwaIcon

java.lang.Object
com.vaadin.flow.server.PwaIcon

All Implemented Interfaces:

Serializable

public class PwaIcon extends Object implements Serializable

Implementation of icons used in PWA resources. Creates the href automatically based on - baseName (the file name with path, as icons/icon.png") - width (width of icon) - height (height of icon) - (possibly) fileHash (the hashcode of image file) The href will be set as: [basename]-[width]x[height].png{?[filehash]} The trailing ?[filehash] will be added if icon cache is not controlled by service worker: cached = false Icon caching is left to the browser if it's not cached with service worker.

Since:

1.2

See Also:

  • Constructor Details

    • PwaIcon

      protected PwaIcon(PwaIcon icon)

  • Method Details

    • asElement

      public org.jsoup.nodes.Element asElement()

      Gets an Element presentation of the icon.

      Returns:

      an Element presentation of the icon

    • getWidth

      public int getWidth()

      Gets width of an icon.

      Returns:

      width of an icon

    • getHeight

      public int getHeight()

      Gets height of an icon.

      Returns:

      height of an icon

    • shouldBeCached

      public boolean shouldBeCached()

      Should the icon be cached by the Service Worker.

      Returns:

      should the icon be cached by the Service Worker.

    • getSizes

      public String getSizes()

      Gets the value of the sizes attribute.

      Returns:

      value of the sizes attribute

    • getHref

      public String getHref()

      Gets the value of the href attribute.

      Returns:

      value of the href attribute

    • getRelHref

      public String getRelHref()

      Return href with '/' -prefix and removed possible ?[fileHash]. Used in matching, when serving images.

      Returns:

      href with '/' -prefix and removed possible ?[fileHash]

    • getCacheFormat

      public String getCacheFormat()

      Gets the cache-string used in Google Workbox caching.

      Returns:

      "{ url: '[href]', revision: '[fileHash' }"

    • getType

      public String getType()

      Gets the value of the type attribute.

      Returns:

      value of the type attribute

    • getDomain

      public PwaIcon.Domain getDomain()

      Gets the icon PwaIcon.Domain.

      Returns:

      the domain of the icon

    • setRegistry

      public void setRegistry(PwaRegistry registry)

    • setImage

      public void setImage(BufferedImage image)

      Sets the image presenting the icon.

      Parameters:

      image - the image in png format

    • write

      public void write(OutputStream outputStream)

      Writes the icon image to output stream.

      Parameters:

      outputStream - output stream to write the icon image to

    • getBaseImage

      protected BufferedImage getBaseImage()

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