PROJECT STATUS: Please see http://forums.famous-views.org/t/with-much-regret-the-final-update/102/. Note that a few posts down, you'll see that some really awesome stuff is happening in the community (that I'm involved in too), so this project isn't dead yet. But I'll no longer be using official Famous and it might be a while until there is some news. Follow there for updates.
Oh look, it's a new major number. That means I can break the API :)
You're on the master branch, where work is in development for the totally unstable famous-views v1.x series, which works with famous v0.5 (mixed mode).
For the stable (but deprecated) famous-views v0.x, which works with famous v0.3.5, please see the v0 branch.
To learn the basics through an interactive tutorial with live, editable code, check out https://fview-lab2.meteor.com/gadicc.
The v1 series is a rewrite. A good opportunity for code househeeping. Code from v0 will be copied in and adapted on a per unit bases, after inspection and ideally tests.
Please read this README in it's entirety to understand what's going on :) Also,
the v1.0.0 -- it's semver, we're bumping the major version to indicate an API
change. Please don't draw any conclusions about being "production ready".
To learn the basics through an interactive tutorial with live editable code, check out https://fview-lab2.meteor.com/gadicc.
Quick start:
# Please check History.md on updates
meteor add gadicohen:famous gadicohen:famous-viewsgadicohen:famous is a temporary
package until our regular options are available again. It exports everything
to a global famous var, e.g. famous.core.FamousEngine, etc. When we reach
stable, we'll have a recommended pattern that works with all packages, which
may involve wrapping famous-requiring-code with FView.ready() like last time,
we'll see. But for now just use the globals.
The new markup structure looks like this:
Or a "full" example: (in Jade... use Jade!)
body
+Scene
+Node id="baseNode"
+Node size="absolute: 100; renderSize" rotation="[1,1]"
+DOMElement style="background: red" class="domEl" dir="rtl"
p Howzit!
+Node size="A:100; RS" rotation=reactiveRotationHelper
+DOMElement
p Shalom!-
The only attribute supported is
id -
The scene attaches itself to the containing DOM element ('body' in the above example).
-
This element is given a 'fview-scene' class (which has appropriate CSS rules).
-
If attached to 'body', the relevant CSS is added for
htmlandbodyto give you full control over the browser window. -
For any other element (e.g. 'div'), you should set the appropriate
width,height,marginandpaddingas appropriate. If the element has noid, famous-Views will map it to the node's id.
Supported non-reactive attributes:
id- retrievable via FView.byId(x)_onRendershortcut -- see below
Supported reactive attributes:
size- addsfview.sizeinstance and sets size (see below for the format)position/align/mountPoint/origin/rotation/scale- see below
Sizing
See http://famous.org/learn/sizing.html for the sizing types. We believe in minimal typing, so we have a proprietary string format that looks as follows (spaces are optional, names may be shortened and case is insensitive, so the following two groups are equivalent):
size="50%, -10"
size="proportional: 0.5; differential: -10"
size="P:0.5; D:-10"
size="150, RS, 50% - 10"
size="absolute: 150; renderSize; relative: 0.5,-10"
size="A:150; RS; R:0.5,-10"
The second group would do the following in famous:
var size = fview.size = new Size(node);
size.setMode(Node.ABSOLUTE_SIZE, Node.RENDER_SIZE, Node.RELATIVE_SIZE)
size.setAbsolute(150);
size.setProportional(undefined, undefined, 0.5);
size.setDifferential(undefined, undefined, -10);The "natural" sizing works like this: "x, y, z" where these can be
(spaces optional):
renderSize or rs(case insensitive) --> RENDER_SIZE100(a number) --> ABSOLUTE_SIZE50%(a number + percent sign) --> proportional (via RENDER_SIZE)+10(+/- a number) --> differtial (via RENDER_SIZE)20% - 10--> RENDER_SIZE
Everything else (including position, rotation, etc)
String decoding similar to famous-views 0.x, e.g. position="[100,100]", JSON and some other stuff. You should return an exact value (e.g. an Array of Numbers) from reactive helpers.
Notes:
-
Numbers are passed as is. In v0 we took degrees from helpers and converted them to radians to pass to Famous. This may or may not happen in v1 (i.e. API is still unstable). Probably we'll have a rotationDeg shortcut, etc.
-
We only instantiate a new component as
fview.positionetc if a transition is specified.
For animations, you can return a special object ala famous-views v0:
Template.body.helpers({
reactiveRotate: function() {
return {
value: [0, 1],
transition: { duration: 1000, curve: 'inBounce' }
halt: true, // optional (TODO)
callback: function() { ... } // optional
};
}
});To keep switching between two values, we provide a shortcut to infinity:
+Node rotation='{ "value1": [0,-3.14], "value2": [0,3.14], "transition": { "duration": 1000 } }'To reset the loop on each iteration (for a continuous animation "in the
same direction", given appropriate values) add: _loopFromBeginning: true.
You can also simply manipulate the fview directly and
return '__FVIEW_SKIP__', e.g.:
Template.body.helpers({
reactiveRotate: function() {
FView.current().node.setRotation(x,y,z);
return '__FVIEW_SKIP__';
},
reactiveRotate2: function() {
var fview = FView.current();
if (!fview.rotate)
fview.rotate = new famous.components.Rotation(fview.node);
fview.rotate.set(1,2,3, transition, callback);
fview.rotate.setX(1, transition, callback);
return '__FVIEW_SKIP__';
}
});Special Attributes:
_onRender:
Specify the name (by string) of a helper function that we should run after adding the node to the Scene Graph.
body
+Node _onRender="renderFunc" // note, String nameTemplate.body.helpers({
renderFunc: function() {
// this = fview
}
});This is a component that is added to the enclosing node, it's not a real node on it's
own, it simply attaches a DOMElement component to the enclosing node, and the augments
that node's fview with:
fview.domElement- the DOMElement instancefview.updateSize()- forces an update for RENDER_SIZE'd nodesfview.updateSizeDeferred()- as above, but deferred (useful for reactive helpers)
Template attributes:
- style="background: red; color: white" (reactive)
- class="class1 class2 etc" (reactive)
- dir="rtl" and any other attribute (reactive)
- tagName like in famous -- NOT IMPLEMENTED YET (TODO)
- watchSize like in v0 -- NOT IMPLEMENTED YET (TODO)
The {{>Surface template="x"}} format is gone, just put {{>x}} inside.
If using RENDER_SIZE, you have to let us know if you do anything that could change the size of the rendered content, using one of the Methods above. Here's an example for a reactive helper:
Template.body.helpers({
something: function() {
FView.current().updateSizeDeferred();
return variableSizedStuff;
}
});Mesh, Camera, PointLight are all very simple wrappers and work how you'd
expect. See the live demos for some examples.
- Mesh geometry='Torus' baseColor='white, 0.5' glossiness='white; 500'
Components in general with attributes ending with [cC]olor, i.e.
color, baseColor, can parse values like "white", "white, 0.2" (for
opacity 0.2), "#ffffff".
Use this instead of Meteor's built-in #each inside the Scene graph. This
is required to maintain ordering and allows wrapped code to capitalize on
ordered insertions/removals/reorders.
FView.byId(id)- gets the fview from e.g.{{#Node id="myNode"}}etc{{/Node}}FView.from(viewOrTplorEl)- gets thefviewfrom a Blaze View, a Template Instance or a DOM element (of the regular, non-famous variety)FView.current()- great new shortcut for inside helpers, Meteor events, template/view autoruns and some callbacks. UsesBlaze.currentViewinternally.
jQuery inspired short-cut to get the fview, e.g.
FV(fview),FV('#id'),FV('.class'),FV('Node')-- multiple selectors soonFV(fview).children(selector),closest(),parents(),parent(),find(),siblings(),eq(),each()- Chainable (but not so many methods yet), jQuery like (so use FV(something)[0] to get the real fview and not an FV-wrapped array), etc
You can also set up onRender events for nodes in a class, e.g. (included by default):
FView.defineClass('center', {
onRender: function() {
this.node.setMountPoint(0.5, 0.5, 0.5);
this.node.setAlign(0.5, 0.5, 0.5);
this.node.setOrigin(0.5, 0.5, 0.5);
}
});Which means you can:
+Node class="center"
+Node class="center"etc.
Properties
fview.idfview.node- the node instancefview.components- dictionary of data for added componentsfview._class- class datafview.*- misc other stuff depending on the node type/class
Methods
fview.autorun(func)-- just liketplOrView.autorunin Meteor/Blaze exceptthisin the callback will be thefview; automatically removed when node is destroyed.
Just as with v0, famous-views is primarily a low-level wrapper around Famous, to make it fit in naturally with Meteor. We don't aim to provide a comprehensive library of community components, instead, we realy on other developers to provide fview-* plugin packages. It's not so hard to do, and we'll have some example patterns for v1 available soon.
But what about stuff you don't want to publish, or isn't already published? How can you wrap simple things? Well, like this:
FView.wrap('Node', famous.core.Node); // silly example, already included
FView.wrapComponent('Mesh', famous.webglRenderables.Mesh);This will give you {{#Node}} and {{#Mesh}} helpers to use in your
templates. Adding children / attaching components all work as you'd expect.
Admittedly it's not always this simple, but a 3rd parameter, options can
provide a dictionary of overrides to adapt as necessary. You may find some
more useful examples here:
https://github.com/gadicc/meteor-famous-views/tree/master/lib/wrappers
Package['jag:pince'].Logger.setLevel('famous-views', 'info');
Levels are: trace, debug, info, warn, error
In a later release I'll enable to change this before load, for those who hate anything on console :)
Might add something to do this in a Meteor way again. For now, either set these
up famous-style _onRender (in famous style, see their docs) or do something like
this:
Template.inner.events({
'click': function(event, templateInstance) {
var fview = FView.current();
// `this` is data context; regular Meteor event, etc.
}
});-
Defer/tracker override -
Ability to remove/destroy templates :) -
famousEach, famousIf, etc - Events in a Meteor way again?
- Loads of other stuff from v0... request them and I'll prioritize
Besides the underlying Famous API and how we deal with it:
-
In v0 we could use famous-views stuff inline
{{#Surface}}...{{/Surface}}and via inclusion{{>Surface template="mySurface"}}. The latter enabled us to use life cycle callbacks and events, but was a big source of confusion amongst users, and stifled fast development but requiring a lot of extraneous subtemplating. In the new version we just use_onRenderand_eventMapattributes, provided from the enclosing Templates single helper. Feedback welcome. You can still use regular inclusion{{>template}}like usual. -
In v0 a MeteorFamousView was (usually) a kind of renderNode too. In v1 we maintain a separatation, we maintain our own tree (like we had to in v0 too) but add famous nodes directly to the scene graph.