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Class: HTMLView

Inheritance:

   Object
   |
   +--GraphicsMedium
      |
      +--DisplaySurface
         |
         +--SimpleView
            |
            +--ScrollableView
               |
               +--HTMLView
Package:
stx:libhtml
Category:
System-Documentation
Version:
rev: 1.26 date: 2023/11/07 16:24:43
user: cg
file: HTMLView.st directory: libhtml
module: stx stc-classLibrary: libhtml

Description:


Attention: Please read the warning in HTMLElement.

The functionality is basically the same as provided by the HTMLDocumentView.
Additional there is a value holder which holds the 'home' document to be shown
and configurable scrollbars (horizontal and vertical).


copyright
COPYRIGHT (c) 1997 by eXept Software AG
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Instance protocol:

accessing
o  contents: aString
for compatibility with TextViews

o  extentOfContents

o  homeDocument: aFilename
set home document

o  homeText: aString
set some html text

o  positionOnAnchor: localAnchor

o  positionTo: aPoint

o  selfInDoitExpressions: rule

accessing-channels
o  canGoBackHolder

o  currentDocumentAndAnchor
return the current document plus any local anchor, if we are positioned on one;
returns something like foo#bla

o  currentURL

o  documentHolder
get the document holder (holds the uri)

o  documentHolder: aValueHolder
set the URL holder (holds the document's URL)

o  htmlTextHolder
get the text holder (holds the html-text)

o  htmlTextHolder: aValueHolder
set the text holder (holds the html-text)

o  uriHolder

change & update
o  update: something with: aParameter from: changedObject
one of my models changed its value

initialization & release
o  destroy
remove dependencies

o  initialize
setup scrollable view a HTMLDocumentView instance

Examples:


    |top doc holder|

    top := StandardSystemView extent:500@500.
    doc := self origin:0.0@ 0.0 corner:1.0@1.0 in:top.
    top openAndWaitUntilVisible.

    holder := ValueHolder new.
    holder inspect.
    doc documentHolder:holder.
    holder value:'/home2/stx/lib/doc/online/english/TOP.html'.

    |top doc holder|

    top := StandardSystemView extent:500@500.
    doc := self origin:0.0@ 0.0 corner:1.0@1.0 in:top.
    top openAndWaitUntilVisible.

    holder := ValueHolder new.
    doc documentHolder:holder.
    doc homeText:
        '
        <html>
        <body>
        <h1>chapter 1</h1>
        <h2>sub chapter 1.1</h2>
        <h1>chapter 2</h1>
        <h2>sub chapter 2.1</h2>
        <h2>sub chapter 2.2</h2>
        <h2>sub chapter 2.3</h2>
        </body>
        </html>
        '

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