Provide ShowBlockNodes plugin for dijit.Editor

[Jared Jurkiewicz]

Provide ShowBlockNodes? plugin for dijit.Editor

This is a ticket for a small enhancement to editor that is useful when editing a document online, the ShowBlockNodes?. The plugin uses CSS updates in the editor to show you the basic structure (layout), being used in the underlying html rendering the rich text. This can be extremely helpful if something isn't laying out right to see why.

Of course, it's only generally helpful to those who know HTML too. Still, it's a ncie to have plugin at times and helps our editor feature set.

Not much code and easy to add.

Working on testcase now.

[Jared Jurkiewicz]

(In [20025]) Adding in the show block nodes plugin. fixes #9837

[liucougar]

the links to test files are wrong

[liucougar]

thanks for the plugin.

I have some small suggestions:

• in _initButton: dojo.hitch is not needed in this.connect(this.button, "onChange", dojo.hitch(this, this._showBlocks));
• in bottom of _initButton: no need to create an anonymouse function to wrap this.toggle()
• the first line in _showBlocks: "this.editor.iframe.contentWindow.document;" can be changed to "this.editor.document"

I believe the reason for the need of _calcBaseUrl is that, in webkit, it does not assign a <base> tag to the iframe for the editor (due to the fact that we are setting the iframe src to "javascript:..."). I think maybe it's a good idea to explicitly set a <base> to the content html in the iframe.

it may actually be easier to use a css file (instead of dynamically inserting the css rules to the iframe).

[Jared Jurkiewicz]

(In [20047]) Minor tweak to the ShowBlockNodes? enhancement, need to compute baseUrl better for absolute paths in the module url. refs #9837

[Jared Jurkiewicz]

(In [20048]) Minor tweaks from Liu Cougar comments. Slight code reductions on connects, updated readme. refs #9837

[Jared Jurkiewicz]

(In [20049]) Minor tweaks from Liu Cougar comments. Slight code reductions on connects, updated readme. refs #9837

[Jared Jurkiewicz]

(In [20060]) Tweak to button instantiation. refs #9837

[Jared Jurkiewicz]

(In [20096]) Update dynamic style gen so that it only displays, doesn't try to print. refs #9837