public FrameView(Element elem) 
{
        super(elem);
}

Creates a new Frame.

Parameters:

elem - the element to represent.

 public  void changedUpdate(DocumentEvent e,
    Shape a,
    ViewFactory f) 
{
        Element elem = getElement();
        AttributeSet attributes = elem.getAttributes();
        URL oldPage = src;
        String srcAtt = (String)attributes.getAttribute(HTML.Attribute.SRC);
        URL base = ((HTMLDocument)elem.getDocument()).getBase();
        try {
            if (!createdComponent) {
                return;
            }
            Object postData = movePostData(htmlPane, null);
            src = new URL(base, srcAtt);
            if (oldPage.equals(src) && (src.getRef() == null) && (postData == null)) {
                return;
            }
            htmlPane.setPage(src);
            Document newDoc = htmlPane.getDocument();
            if (newDoc instanceof HTMLDocument) {
                ((HTMLDocument)newDoc).setFrameDocumentState(true);
            }
        } catch (MalformedURLException e1) {
            // Need a way to handle exceptions
            //e1.printStackTrace();
        } catch (IOException e2) {
            // Need a way to handle exceptions
            //e2.printStackTrace();
        }
}

Gives notification from the document that attributes were changed in a location that this view is responsible for. Currently this view handles changes to its SRC attribute.

 protected Component createComponent() 
{
        Element elem = getElement();
        AttributeSet attributes = elem.getAttributes();
        String srcAtt = (String)attributes.getAttribute(HTML.Attribute.SRC);
        if ((srcAtt != null) && (!srcAtt.equals(""))) {
            try {
                URL base = ((HTMLDocument)elem.getDocument()).getBase();
                src = new URL(base, srcAtt);
                htmlPane = new FrameEditorPane();
                htmlPane.addHyperlinkListener(this);
                JEditorPane host = getHostPane();
                boolean isAutoFormSubmission = true;
                if (host != null) {
                    htmlPane.setEditable(host.isEditable());
                    String charset = (String) host.getClientProperty("charset");
                    if (charset != null) {
                        htmlPane.putClientProperty("charset", charset);
                    }
                    HTMLEditorKit hostKit = (HTMLEditorKit)host.getEditorKit();
                    if (hostKit != null) {
                        isAutoFormSubmission = hostKit.isAutoFormSubmission();
                    }
                }
                htmlPane.setPage(src);
                HTMLEditorKit kit = (HTMLEditorKit)htmlPane.getEditorKit();
                if (kit != null) {
                    kit.setAutoFormSubmission(isAutoFormSubmission);
                }
                Document doc = htmlPane.getDocument();
                if (doc instanceof HTMLDocument) {
                    ((HTMLDocument)doc).setFrameDocumentState(true);
                }
                setMargin();
                createScrollPane();
                setBorder();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
        createdComponent = true;
        return scroller;
}

 JEditorPane getHostPane() 
{
        Container c = getContainer();
        while ((c != null) && ! (c instanceof JEditorPane)) {
            c = c.getParent();
        }
        return (JEditorPane) c;
}

 public float getMaximumSpan(int axis) 
{
        return Integer.MAX_VALUE;
}

Determines the maximum span for this view along an axis.

 public float getMinimumSpan(int axis) 
{
      return 5;
}

Determines the minimum span for this view along an axis.

 JEditorPane getOutermostJEditorPane() 
{
        View parent = getParent();
        FrameSetView frameSetView = null;
        while (parent != null) {
            if (parent instanceof FrameSetView) {
                frameSetView = (FrameSetView)parent;
            }
            parent = parent.getParent();
        }
        if (frameSetView != null) {
            return (JEditorPane)frameSetView.getContainer();
        }
        return null;
}

Finds the outermost FrameSetView. It then returns that FrameSetView's container.

 public  void hyperlinkUpdate(HyperlinkEvent evt) 
{
        JEditorPane c = getOutermostJEditorPane();
        if (c == null) {
            return;
        }
        if (!(evt instanceof HTMLFrameHyperlinkEvent)) {
            c.fireHyperlinkUpdate(evt);
            return;
        }
        HTMLFrameHyperlinkEvent e = (HTMLFrameHyperlinkEvent)evt;
        if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
            String target = e.getTarget();
            String postTarget = target;
            if (target.equals("_parent") && !inNestedFrameSet()){
                target = "_top";
            }
            if (evt instanceof FormSubmitEvent) {
                HTMLEditorKit kit = (HTMLEditorKit)c.getEditorKit();
                if (kit != null && kit.isAutoFormSubmission()) {
                    if (target.equals("_top")) {
                        try {
                            movePostData(c, postTarget);
                            c.setPage(e.getURL());
                        } catch (IOException ex) {
                            // Need a way to handle exceptions
                        }
                    } else {
                        HTMLDocument doc = (HTMLDocument)c.getDocument();
                        doc.processHTMLFrameHyperlinkEvent(e);
                    }
                } else {
                    c.fireHyperlinkUpdate(evt);
                }
                return;
            }
            if (target.equals("_top")) {
                try {
                    c.setPage(e.getURL());
                } catch (IOException ex) {
                    // Need a way to handle exceptions
                    // ex.printStackTrace();
                }
            }
            if (!c.isEditable()) {
                c.fireHyperlinkUpdate(new HTMLFrameHyperlinkEvent(c,
                                                                  e.getEventType(),
                                                                  e.getURL(),
                                                                  e.getDescription(),
                                                                  getElement(),
                                                                  e.getInputEvent(),
                                                                  target));
            }
        }
}

Notification of a change relative to a hyperlink. This method searches for the outermost JEditorPane, and then fires an HTMLFrameHyperlinkEvent to that frame. In addition, if the target is _parent, and there is not nested framesets then the target is reset to _top. If the target is _top, in addition to firing the event to the outermost JEditorPane, this method also invokes the setPage() method and explicitly replaces the current document with the destination url.

 public  void paint(Graphics g,
    Shape allocation) 
{
        Container host = getContainer();
        if (host != null && htmlPane != null &&
            htmlPane.isEditable() != ((JTextComponent)host).isEditable()) {
            editable = ((JTextComponent)host).isEditable();
            htmlPane.setEditable(editable);
        }
        super.paint(g, allocation);
}

Also determines if the FrameView should be editable or not based on whether the JTextComponent that contains it is editable. And then proceeds to call the superclass to do the paint().

 public  void setParent(View parent) 
{
        if (parent != null) {
            JTextComponent t = (JTextComponent)parent.getContainer();
            editable = t.isEditable();
        }
        super.setParent(parent);
}

Sets the parent view for the FrameView. Also determines if the FrameView should be editable or not based on whether the JTextComponent that contains it is editable.