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feat: improve template helper wiring

This commit is contained in:
hacksalot 2018-02-07 05:49:02 -05:00
parent 2346562428
commit 38a073b09a
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GPG Key ID: 2F343EC247CA4B06
4 changed files with 27 additions and 14 deletions

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@ -26,7 +26,7 @@ Template helper definitions for Handlebars.
@method registerHelpers
*/
module.exports = function(theme, opts) {
module.exports = function(theme, rez, opts) {
var curGlob, ex, glob, slash, wrappedHelpers;
helpers.theme = theme;
helpers.opts = opts;
@ -37,7 +37,7 @@ Template helper definitions for Handlebars.
var args;
args = Array.prototype.slice.call(arguments);
args.shift();
args.pop();
args[args.length - 1] = rez;
return func.apply(this, args);
});
}

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@ -51,8 +51,6 @@ Definition of the HandlebarsGenerator class.
},
generate: function(json, jst, format, curFmt, opts, theme) {
var ctx, encData;
registerPartials(format, theme);
registerHelpers(theme, opts);
encData = json;
if (format === 'html' || format === 'pdf') {
encData = json.markdownify();
@ -60,6 +58,8 @@ Definition of the HandlebarsGenerator class.
if (format === 'doc') {
encData = json.xmlify();
}
registerPartials(format, theme);
registerHelpers(theme, encData, opts);
ctx = {
r: encData,
RAW: json,

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@ -17,23 +17,28 @@ Register useful Handlebars helpers.
@method registerHelpers
###
module.exports = ( theme, opts ) ->
module.exports = ( theme, rez, opts ) ->
helpers.theme = theme
helpers.opts = opts
helpers.type = 'handlebars'
# Prepare generic helpers for use with Handlebars. We do this by wrapping them
# in a Handlebars-aware wrapper which calls the helper internally.
wrappedHelpers = _.mapObject helpers, ( hVal, hKey ) ->
if _.isFunction hVal
return _.wrap hVal, (func) ->
args = Array.prototype.slice.call arguments
args.shift() # lose the 1st element (func)
args.pop() # lose the last element (the Handlebars options hash)
func.apply @, args
args.shift() # lose the 1st element (func) [^1]
#args.pop() # lose the last element (HB options hash)
args[ args.length - 1 ] = rez # replace w/ resume object
func.apply @, args # call the generic helper
hVal
, @
HANDLEBARS.registerHelper wrappedHelpers
# Prepare Handlebars-specific helpers - "blockHelpers" is really a misnomer
# since any kind of Handlebars-specific helper can live here
HANDLEBARS.registerHelper blockHelpers
# Register any theme-provided custom helpers...
@ -64,3 +69,9 @@ module.exports = ( theme, opts ) ->
inner: ex
glob: curGlob, exit: true
return
# [^1]: This little bit of acrobatics ensures that our generic helpers are
# called as generic helpers, not as Handlebars-specific helpers. This allows
# them to be used in other templating engines, like Underscore. If you need a
# Handlebars-specific helper with normal Handlebars context and options, put it
# in block-helpers.coffee.

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@ -30,7 +30,9 @@ HandlebarsGenerator = module.exports =
try
# Compile and run the Handlebars template.
template = HANDLEBARS.compile tpl,
strict: false, assumeObjects: false, noEscape: data.opts.noescape
strict: false
assumeObjects: false
noEscape: data.opts.noescape
return template data
catch
throw
@ -42,10 +44,6 @@ HandlebarsGenerator = module.exports =
generate: ( json, jst, format, curFmt, opts, theme ) ->
# Set up partials and helpers
registerPartials format, theme
registerHelpers theme, opts
# Preprocess text
encData = json
if format == 'html' || format == 'pdf'
@ -53,6 +51,10 @@ HandlebarsGenerator = module.exports =
if( format == 'doc' )
encData = json.xmlify()
# Set up partials and helpers
registerPartials format, theme
registerHelpers theme, encData, opts
# Set up the context
ctx =
r: encData