Jean-Paul Calderone pisze:

On Sun, 09 Nov 2008 13:28:26 +0100, Michał Pasternak <michal.dtz@gmail.com> wrote:

...

Hi,

I want to be able to add athena.LiveElement to an already rendered LivePage. Quick Googling revealed this blog entry:

http://techblog.ironfroggy.com/2006/01/nevow-post-render-injection- of.html

I'd like to know, if there are any other, simpler ways to do that - or, maybe, is there a preferred method to do that in the API already?

See Nevow.Athena.Widget.addChildWidgetFromWidgetInfo.

Wiki FAQ updated, thanks! :-) -- m

On Sun, Nov 9, 2008 at 9:09 PM, Michał Pasternak <michal.dtz@gmail.com>wrote:

Jean-Paul Calderone pisze:

...

On Sun, 09 Nov 2008 13:28:26 +0100, Michał Pasternak < michal.dtz@gmail.com> wrote:

...

Hi,

I want to be able to add athena.LiveElement to an already rendered LivePage. Quick Googling revealed this blog entry:

http://techblog.ironfroggy.com/2006/01/nevow-post-render-injection-of.html

I'd like to know, if there are any other, simpler ways to do that - or, maybe, is there a preferred method to do that in the API already?

See Nevow.Athena.Widget.addChildWidgetFromWidgetInfo.

This method will not add the markup automatically. Am I right?

Yep, I think you're right.

Is this the official way of doing that, or am I missing something?

I'm on a similar track - here's what I use (don't know if it's "official" either :) - function createDynamicWidget(self, className, left, top, args, kw) { var result = self.callRemote('getDynamicWidget', className, left, top, args, ((kw) ? kw : {})); result.addCallback( function(widgetInfo) { return self.addChildWidgetFromWidgetInfo(widgetInfo); }); result.addCallback( function(widget) { var insertedNode = document.body.children(0).insertAdjacentElement('beforeBegin', widget.node); var s = insertedNode.getElementsByTagName('script'); if (s.length == 1) { var js = new Function(s[0].text); js.apply(insertedNode); } insertedNode.style.zIndex = ++max_zIndex; return widget.objectID; }); return result; }, Harald

On Sun, Nov 9, 2008 at 10:10 PM, Jean-Paul Calderone <exarkun@divmod.com>wrote:

On Sun, 9 Nov 2008 21:50:45 +0100, Harald Blåtand <kozneb@gmail.com> wrote:

...

I'm on a similar track - here's what I use (don't know if it's "official" either :) -

function createDynamicWidget(self, className, left, top, args, kw) { var result = self.callRemote('getDynamicWidget', className, left, top, args, ((kw) ? kw : {})); result.addCallback( function(widgetInfo) { return self.addChildWidgetFromWidgetInfo(widgetInfo); }); result.addCallback( function(widget) { var insertedNode = document.body.children(0).insertAdjacentElement('beforeBegin', widget.node); var s = insertedNode.getElementsByTagName('script'); if (s.length == 1) { var js = new Function(s[0].text); js.apply(insertedNode); } insertedNode.style.zIndex = ++max_zIndex; return widget.objectID; }); return result; },

I'm not sure why you're re-evaluating the contents of the script node. Athena has already evaluated that script. If you find some case where this isn't true, please report a bug.

Don't feel confident enough yet in what I'm doing to report any bugs :) 1) Getting IE to buy script tags in the body... seems to require this kludge 2) Combining Nevow and jQuery, to get resizable/draggable widgets 3) Trying out a "Stan alternative" (see below) 4) Having fun :) In case you're interested - def makeDF(xmlDct, filling={}): return loaders.xmlstr(xmlFragments.dictToXML(xmlDct) % filling) class XhMain(athena.LiveFragment): XM = '''\ div xmlns:nevow="http://nevow.com/ns/nevow/0.1" xmlns:athena="http://divmod.org/ns/athena/0.7" nevow:render="liveFragment"''' class GeneralStuff(XhMain, SqlMethods, HtmlMethods): ht = [ {'script' : '''$(function(){ $(".initDraggable").draggable().resizable().bind("resize", resizeHandler).removeClass("initDraggable"); $(".initResult").addClass("autoScroll").removeClass("initResult"); $(".initClick").click().removeClass("initClick"); })'''}, {'div class="draggable initDraggable"' : [ ....... {'div class="menubar"' : [ {'a href="#" class="click initClick"' : [{'athena:handler event="onclick" handler="widget_action"' : ''}, {'span' : 'Refresh'},]}, ] }, {'div id="result" class="result initResult"' : ''}, ] }, ] def __init__(self, db): ..... self.jsClass = self.args['jsClass'] self.docFactory = makeDF({self.XM : self.ht}, self.args) super(GeneralStuff, self).__init__() class Abstract(GeneralStuff): def __init__(self, db, a={}): self.args = { 'jsClass' : u"XH.Abstract", 'widgetHeader' : "Abstract", } self.args.update(a) super(Abstract, self).__init__(db) self.addToMenu({'a href="#" class="click"' : [{'athena:handler event="onclick" handler="mark_for_deletion"' : ''}, {'span' : 'Delete'},]})

Jean-Paul Calderone pisze:

On Sun, 09 Nov 2008 21:09:41 +0100, Michał Pasternak <michal.dtz@gmail.com> wrote:

...

Jean-Paul Calderone pisze:

...

On Sun, 09 Nov 2008 13:28:26 +0100, Michał Pasternak <michal.dtz@gmail.com> wrote:

...

Hi,

I want to be able to add athena.LiveElement to an already rendered LivePage. Quick Googling revealed this blog entry:

http://techblog.ironfroggy.com/2006/01/nevow-post-render-injection- of.html

I'd like to know, if there are any other, simpler ways to do that - or, maybe, is there a preferred method to do that in the API already?

See Nevow.Athena.Widget.addChildWidgetFromWidgetInfo. This method will not add the markup automatically. Am I right?

I want to append incoming LiveFragments to the page.

Right now, I am doing something like this on the client:

// import Divmod.Runtime

What.Ever = Nevow.Athena.Widget.subclass('What.Ever'); What.Ever.methods =(

function foo(self) { d = self.callRemote('getLiveFragment');

d.addCallback(

function liveFragmentReceived(lf) {

d2 = self.addChildWidgetFromWidgetInfo(lf);

d2.addCallback(

function added(res) {

d = Divmod.Runtime.theRuntime.parseXHTMLString( lf.markup).documentElement;

self.nodeById('lastNode').appendChild(d);

});

});

You don't have to parse the markup. It's already parsed. The DOM element which results is the `node´ attribute of the Widget instance (which you get as `res´ - the result of the callback). You shouldn't use any attributes of `lf´, since it is an opaque handle: there is no API stability guarantee about it. The *only* thing you can do with it is pass it to `addChildWidgetFromWidgetInfo´.

Yes sir! To whom it may concern: I've created a short how-to page: http://divmod.org/trac/wiki/DivmodNevow/Athena/Tutorials/LiveElementsOnFly -- m