Example using TroopJS #120

mikaelkaron · Mar 22, 2012

A TodoMVC example using TroopJS

sindresorhus · Mar 22, 2012

Thanks for the contribution :D

Can you explain what TroopJS is? Couldn't find any info on it.

mikaelkaron · Mar 22, 2012

Just another front-end framework. Aims to package current javascript technologies and 'bind' them together with minimal effort for the developer.

jQuery for DOM operations
RequireJS for modularity
ComposeJS for object composition
Has.js for feature detection

On top of this we've added a pubsub system, templating, weaving (connect widget to dom) and auto wiring.

The TroopJS moto goes something like

Provide as little as possible to do as much as possible

The name is taken from what you'd call a group of monkeys (troop) as originally it was targeted at an 'embedded' environment using spidermonkey.

We're using todomvc as the onboarding project for new developers, so there's a step-by-step guide (in progress) that explains how we created this app.

mikaelkaron · Mar 23, 2012

simplified the file structure quite a bit and provided an example using troopjs-bundle instead of individual modules.

mikaelkaron · Apr 12, 2012

Not really sure what else I can do to get this merged. Perhaps use the new template from #126 when its ready?

sindresorhus · Apr 12, 2012

Sorry for the delay. I've been on holiday.

It looks pretty good :)

There are some things I'd appreciate if you could fix:

Use the latest template.
As you've seen, I just landed a new UI. The HTML changes are minimal: You can see the changes in the diff here.
Make sure you follow the newly released App Specification.
Please let me know if anything is unclear or could be improved. It's not field tested yet. The spine.js example, not yet landed, can be used as a reference.
This project uses tab indention and follows the Idiomatic guide to writing JavaScript. Please ensure your code follows this closely. If something is unclear, follow the existing style. Use double-quotes in HTML and single-quotes in JS and CSS.

I'll review it more thoroughly when the above changes are implemented :D

Some comments to your excellent TroopJS Todo app intro:

Ours is located in js/lib. As none of the other folders (css, js and img) were pluralized, we thought that it was silly to do it here.

I agree, changed in master.

We do this, but we felt it was natural to do the same when the user removes focus from the input box.

This is specified in the new App Specification.

Since the specification does not define what this checkbox should do when only some of the tasks are marked as completed, we've added an indeterminate state that covers this usecase.

Also in the App Specification.

Do let us know if you have any more feedback or if something is unclear :D

sindresorhus · Apr 30, 2012

@mikaelkaron Any updates?

mikaelkaron · May 2, 2012

hacking along on 0.0.2 ;) I'll make an updated todomvc as soon as I have that (using the new UI)

addyosmani · May 4, 2012

@mikaelkaron Thanks for the update! Do you think 0.0.2 might be ready sometime over the next few weeks? Im trying to establish whether you'll have time to bring the TroopJS app in line with specs for our next major version (probably aiming to go out in a month). If you do, I'll mark the target release for this as 1.0 otherwise we can do it in 1.1 (probably 1..a few months after).

We appreciate your contributions!

mikaelkaron · May 7, 2012

I'll try to land 0.0.2 ASAP, so please target this for 1.0

addyosmani · May 7, 2012

Marked accordingly. Let us know if you need any help :)

sindresorhus · May 27, 2012

@mikaelkaron Any updates? The 1.0 release is close, and we need to get those apps that are going into the release merged.

mikaelkaron · May 29, 2012

I've been a bit slow over here. I'll take a stab at it today!

mikaelkaron · May 29, 2012

landed a bunch of stuff in my troopjs-todos repo (what I eventually 'copy' to todomvc). basically implemented all the requirements except routing. will take a stab at that tomorrow.

mikaelkaron · May 30, 2012

a bit of reset and a commit later. done.

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+
+.filter-active .completed,
+.filter-completed .active {
+	display: none;


CSS shouldn't be tied to the filters functionality.

Instead you should just hide/show the items directly.

just trying to save myself some coding for when you have a filter applied and add/remove items. I'll take a look at if it can be done without CSS.

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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@@ -0,0 +1,24 @@
+define( [ "troopjs-core/component/widget" ], function CreateModule(Widget) {
+	var RE = /^\s+|\s+$/;
+	var ENTER = 13;


sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+
+			switch($event.keyCode) {
+			case ENTER:
+				value = $element.val().replace(RE, EMPTY);


Don't need regex for this: val().trim() instead

does that trim of tabs etc?

Yes. https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim

right. I was looking at $.trim. I'll update

sindresorhus · May 30, 2012

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+define( [ "troopjs-core/component/widget" ], function CreateModule(Widget) {
+	var RE = /^\s+|\s+$/;
+	var ENTER = 13;
+	var EMPTY = "";


Unnecessary constant, just compare against an empty string directly.

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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@@ -0,0 +1,20 @@
+define( [ "troopjs-core/component/widget", "jquery" ], function FiltersModule(Widget, $) {
+
+	var SELECTED = "selected";


Don't need a constant here either.

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+var item = data.item;
+var completed = item.completed;
+%>
+<li class="<%= (completed ? 'completed' : 'active') %>">


-> <li class="<%= (completed ? 'completed' : '') %>">

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+define( [ "troopjs-core/component/widget", "troopjs-core/store/local", "jquery", "template!./item.html" ], function ListModule(Widget, store, $, template) {
+	var RE = /^\s+|\s+$/;
+	var ENTER = 13;
+	var EMPTY = "";


Same as earlier comments

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+		var self = this;
+
+		// Defer initialization
+		$.Deferred(function deferredInit(dfdInit) {


Use something like deferInit, instead of the ambiguous dfdInit, same with the below.

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+			case "/completed":
+				$element
+					.removeClass(FILTER_ACTIVE)
+					.addClass(FILTER_COMPLETED);


.toggeClass( FILTER_COMPLETED );

sindresorhus · May 30, 2012

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+			// Update UI
+			$($event.target)
+				.closest("li")
+				.slideUp("slow", function hidden() {


Don't animate

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+			// Get INPUT and disable
+			var $input = $li
+				.find("input")
+				.prop(DISABLED, true);


Why do you disable the input? it's only visible when in editing mode anyway.

right now we know that localstorage is fast, so there's no need to disable the UI during write. But I'd like to have it there simply if one would try to implement a remote storage module, in which case it would disable the input box during write callback.

Ok, sure, I agree ;)

sindresorhus · May 30, 2012

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sindresorhus · May 30, 2012

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+			var $target = $($event.target);
+			var title = $target
+				.val()
+				.replace(RE, EMPTY);


Same as before val().trim()

sindresorhus · May 30, 2012

Thanks for finishing this. I have to say, I like to good use of $.Deferred ;)

I've done a review of your app and have some comments in addition to the inline ones:

Move it to the labs/architecture-examples folder. Remember to update all the references in the HTML.

Develop in a topic branch (not master) and submit against the labs folder in the master branch

Counter should say e.g: 2 items left
When in editing mode and remove the todo contents and hit enter, i get this error msg:

Uncaught Error: NOT_FOUND_ERR: DOM Exception 8

Drop the animation stuff
Use the jQuery in the assets folder
Minified:

Use minified version of third-party code and put it in the lib folder.

Too much use of unnessecary constants

mikaelkaron · May 30, 2012

I'll get on the CSS update tomorrow. Do you want me to make a topic branch for all of this as per:

Develop in a topic branch (not master) and submit against the labs folder in the master branch

or are you ok with this pull request as it is (besides the outstanding CSS fix)?

I was also unable to reproduce your error, do you still have it?

sindresorhus · May 30, 2012

I'll get on the CSS update tomorrow. Do you want me to make a topic branch for all of this as per:

No not necessary, but keep it in mind for your next pull request. It makes your life a lot easier if you've ever need to submit multiple pull requests to the same project.

I've just added require.js to our assets folder. Can you use that instead? (Note that it's Require 2.0)

I was also unable to reproduce your error, do you still have it?

Yes, I still have that issue, Chrome 19 Mac Lion:

Steps: Double-click the item, remove all the text, hit enter

Uncaught Error: NOT_FOUND_ERR: DOM Exception 8 jquery.min.js:4
f.fn.extend.remove jquery.min.js:4
onDelete list.js:139
b troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
q troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
r troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
f.each.f.fn.(anonymous function) jquery.min.js:3
onCommitFocusOut list.js:208
b troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
q troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
r troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
f.each.f.fn.(anonymous function) jquery.min.js:3
onCommitKeyUp list.js:194
b troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
q troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3
f.event.trigger jquery.min.js:3
f.fn.extend.trigger jquery.min.js:3
e.extend.each jquery.min.js:2
e.fn.e.each jquery.min.js:2
f.fn.extend.trigger jquery.min.js:3
r troopjs-bundle.js:11
f.event.dispatch jquery.min.js:3
f.event.add.h.handle.i jquery.min.js:3

Other than that, it looks good :)

mikaelkaron · May 31, 2012

Ok, I'm able to reproduce in chrome. I'll take a look at that now.

mikaelkaron · May 31, 2012

that requirejs 2.0 thing sort of threw a wrench into my schedule (had to do some updates to the bundle to support 2.0). I have a version of the bundle that is 2.0 compatible, but as there are still quite a few bugs with 2.0 and rjs I'd like to stick to 1.0 if possible.

sindresorhus · May 31, 2012

that requirejs 2.0 thing sort of threw a wrench into my schedule (had to do some updates to the bundle to support 2.0). I have a version of the bundle that is 2.0 compatible, but as there are still quite a few bugs with 2.0 and rjs I'd like to stick to 1.0 if possible.

Didn't mean to make a lot of extra work for you. Noticed it while surfing and it looked like and easy upgrade. But sure, stick with 1.0 if that's more stable ;)

Just make sure to also minify the require.js file.

addyosmani · May 31, 2012

1.0 should be okay for now :) I know James Burke mentioned there's still a few weeks of work left to wrap up 2.0 so we should be okay to upgrade at a later point as needed.

sindresorhus · May 31, 2012

@addyosmani Actually 2.0 has been released.

addyosmani · May 31, 2012

@sindresorhus Oh wow! That I did not know. He must have had a few late nights to wrap it all up so quickly :)

mikaelkaron · Jun 1, 2012

There. Fixed what needed to be fixed to be RequireJS 2.0 'compatible'.

sindresorhus · Jun 1, 2012

Cool, just need that error fixed and we're golden ;)

mikaelkaron · Jun 1, 2012

Fixed.

Funny problem there actually, it's jQuery that triggers a simulated focusout event on the containing input as I .remove() the li, thereby re-triggering the whole chain (I click() a corresponding .destroy when the input is empty and we lose focus)

sindresorhus · Jun 1, 2012

Right, when I think about it I think we had another app with the same problem, turned out to actually be a Chrome bug.

Landed. Thanks for this addition to our collection ;)

mikaelkaron · Jun 1, 2012

Well, I was only able to reproduce in chrome, and the underlying error is that jQuery will try to remove a node that does not exist anymore. I guess it's possible that this is the same problem (were you removing an element that had input descendants?).

sindresorhus · Jun 1, 2012

Can't remember, but here is the Chromium bug: http://code.google.com/p/chromium/issues/detail?id=104397

And here's the jQuery bug: http://bugs.jquery.com/ticket/11663

mikaelkaron · Jun 1, 2012

looks like the same to me. nice to know ppl are aware about it.

sindresorhus · Jun 1, 2012

But unfortunately not a lot of activity on the Chrome ticket...

prevent simulated events to trigger

dca5107

sindresorhus closed this in 47c8ab0 Jun 1, 2012

mikaelkaron referenced this pull request May 29, 2013
Merged
Updated project to TroopJS 2.x #575

gustaff-weldon pushed a commit to gustaff-weldon/todomvc that referenced this pull request Dec 23, 2013

Close tastejsGH-120: Example using TroopJS.

e9c365d

dichen001 referenced this pull request Jun 28, 2016
Open
Summary of the 20 issues in Herbsleb's 2014 FSE paper. #6

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Example using TroopJS #120

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sindresorhus closed this in `47c8ab0` Jun 1, 2012