This is a draft list of all current hooks into the API. MarkTraceur created this page mostly for his own reference, but hopefully it can be useful to others.

These hooks are called during or in order to set up the formatting process.

All of these methods are called with two arguments:

1. name - the name of the hook being called
2. context - an object with some relevant information about the context of the call

Called from: src/static/js/ace2_inner.js

Things in context: None

The return value of this hook will add elements into the "lineMarkerAttribute" category, making the aceDomLineProcessLineAttributes hook (documented below) call for those elements.

Called from: src/static/js/domline.js

Things in context:

1. domline - The current DOM line being processed
2. cls - The class of the current block element (useful for styling)

This hook is called for elements in the DOM that have the "lineMarkerAttribute" set. You can add elements into this category with the aceRegisterBlockElements hook above.

The return value of this hook should have the following structure:

{ preHtml: String, postHtml: String, processedMarker: Boolean }

The preHtml and postHtml values will be added to the HTML display of the element, and if processedMarker is true, the engine won't try to process it any more.

Called from: src/static/js/domline.js

Things in context:

1. domline - the current DOM line being processed
2. cls - The class of the current element (useful for styling)

This hook is called for any line being processed by the formatting engine, unless the aceDomLineProcessLineAttributes hook from above returned true, in which case this hook is skipped.

The return value of this hook should have the following structure:

{ extraOpenTags: String, extraCloseTags: String, cls: String }

extraOpenTags and extraCloseTags will be added before and after the element in question, and cls will be the new class of the element going forward.

Called from: src/static/js/domline.js

Things in context:

1. node - the DOM node that just got written to the page

This hook is for right after a node has been fully formatted and written to the page.

Called from: src/static/js/linestylefilter.js

Things in context:

1. linestylefilter - the JavaScript object that's currently processing the ace attributes
2. key - the current attribute being processed
3. value - the value of the attribute being processed

This hook is called during the attribute processing procedure, and should be used to translate key, value pairs into valid HTML classes that can be inserted into the DOM.

The return value for this function should be a list of classes, which will then be parsed into a valid class string.

Called from: src/static/js/linestylefilter.js

Things in context:

1. linestylefilter - the JavaScript object that's currently processing the ace attributes
2. browser - an object indicating which browser is accessing the page

This hook is called to apply custom regular expression filters to a set of styles. The one example available is the ep_linkify plugin, which adds internal links. They use it to find the telltale [[ ]] syntax that signifies internal links, and finding that syntax, they add in the internalHref attribute to be later used by the aceCreateDomLine hook (documented above).