Rewrite the each-* binder with some of the optimizations that @terrancesnyder ha…
…s implemented. [#157]
Showing
1 changed file
with
29 additions
and
28 deletions
... | @@ -368,46 +368,47 @@ Rivets.binders = | ... | @@ -368,46 +368,47 @@ Rivets.binders = |
368 | 368 | ||
369 | "each-*": | 369 | "each-*": |
370 | block: true | 370 | block: true |
371 | bind: (el, collection) -> | 371 | |
372 | el.removeAttribute ['data', @view.config.prefix, @type].join('-').replace '--', '-' | 372 | bind: (el) -> |
373 | unbind: (el, collection) -> | 373 | attr = ['data', @view.config.prefix, @type].join('-').replace '--', '-' |
374 | view.unbind() for view in @iterated if @iterated? | ||
375 | routine: (el, collection) -> | ||
376 | if @iterated? | ||
377 | for view in @iterated | ||
378 | view.unbind() | ||
379 | e.parentNode.removeChild e for e in view.els | ||
380 | else | ||
381 | @marker = document.createComment " rivets: #{@type} " | 374 | @marker = document.createComment " rivets: #{@type} " |
375 | @iterated = [] | ||
376 | |||
377 | el.removeAttribute attr | ||
382 | el.parentNode.insertBefore @marker, el | 378 | el.parentNode.insertBefore @marker, el |
383 | el.parentNode.removeChild el | 379 | el.parentNode.removeChild el |
384 | 380 | ||
385 | @iterated = [] | 381 | unbind: (el) -> |
382 | view.unbind() for view in @iterated if @iterated? | ||
386 | 383 | ||
387 | if collection | 384 | routine: (el, collection) -> |
388 | for item in collection | 385 | modelName = @args[0] |
386 | collection = collection or [] | ||
387 | |||
388 | if @iterated.length > collection.length | ||
389 | for i in Array @iterated.length - collection.length | ||
390 | view = @iterated.pop() | ||
391 | view.unbind() | ||
392 | @marker.parentNode.removeChild view.els[0] | ||
393 | |||
394 | for model, index in collection | ||
389 | data = {} | 395 | data = {} |
390 | data[n] = m for n, m of @view.models | 396 | data[modelName] = model |
391 | data[@args[0]] = item | 397 | |
392 | itemEl = el.cloneNode true | 398 | if not @iterated[index]? |
399 | for key, model of @view.models | ||
400 | data[key] = model | ||
393 | 401 | ||
394 | previous = if @iterated.length | 402 | previous = if @iterated.length |
395 | @iterated[@iterated.length - 1].els[0] | 403 | @iterated[@iterated.length - 1].els[0] |
396 | else | 404 | else |
397 | @marker | 405 | @marker |
398 | 406 | ||
399 | @marker.parentNode.insertBefore itemEl, previous.nextSibling ? null | 407 | template = el.cloneNode true |
400 | options = | 408 | @iterated.push rivets.bind template, data |
401 | binders: @view.options.binders | 409 | @marker.parentNode.insertBefore template, previous.nextSibling |
402 | formatters: @view.options.binders | 410 | else if @iterated[index].models[modelName] isnt model |
403 | config: {} | 411 | @iterated[index].update data |
404 | options.config[k] = v for k, v of @view.options.config if @view.options.config | ||
405 | # Ensure preloadData is set to true since child elements won't get initiated otherwise until the next change (which might not be the first) | ||
406 | options.config.preloadData = true | ||
407 | |||
408 | view = new Rivets.View(itemEl, data, options) | ||
409 | view.bind() | ||
410 | @iterated.push view | ||
411 | 412 | ||
412 | "class-*": (el, value) -> | 413 | "class-*": (el, value) -> |
413 | elClass = " #{el.className} " | 414 | elClass = " #{el.className} " | ... | ... |
-
Please register or sign in to post a comment