scratchfoundation/paper.js
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Revert back to PaperScope#setup() and keep #initialize0 simple.

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This commit is contained in:
Jürg Lehni 2011-08-01 11:01:27 +01:00
parent 6086165d1a
commit 6b6d5909c1
2 changed files with 25 additions and 18 deletions
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40
src/core/PaperScope.js
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@ -39,16 +39,12 @@
var PaperScope = this.PaperScope = Base.extend(/** @lends PaperScope# */{
/**
* Creates a PaperScope object. If a canvas is provided, it also creates a
* an empty {@link Project} and a {@link View} for it, both linked to this
* scope.
* Creates a PaperScope object.
*
* @name PaperScope#initialize
* @function
* @param {HTMLCanvasElement} canvas The canvas this scope should be
* associated with.
*/
initialize: function(canvas, script) {
initialize: function(script) {
// script is only used internally, when creating scopes for PaperScript.
// Whenever a PaperScope is created, it automatically becomes the active
// one.
@ -59,9 +55,9 @@ var PaperScope = this.PaperScope = Base.extend(/** @lends PaperScope# */{
this.projects = [];
this.tool = null;
this.tools = [];
var obj = script || canvas;
this._id = obj && obj.getAttribute('id')
|| script && script.src
// Assign an id to this canvas that's either extracted from the script
// or automatically generated.
this._id = script && (script.getAttribute('id') || script.src)
|| ('paperscope-' + (PaperScope._id++));
// Make sure the script tag also has this id now. If it already had an
// id, we're not changing it, since it's the first option we're
@ -69,14 +65,6 @@ var PaperScope = this.PaperScope = Base.extend(/** @lends PaperScope# */{
if (script)
script.setAttribute('id', this._id);
PaperScope._scopes[this._id] = this;
if (canvas) {
// Create an empty project for the scope.
// Since the global paper variable points to this PaperScope, the
// created project and view are automatically associated with it.
this.project = new Project();
// Create a view for the canvas.
this.view = new View(canvas);
}
},
/**
@ -145,6 +133,24 @@ var PaperScope = this.PaperScope = Base.extend(/** @lends PaperScope# */{
}, scope);
},
/**
* Sets up an empty project for us. If a canvas is provided, it also creates
* a {@link View} for it, both linked to this scope.
*
* @param {HTMLCanvasElement} canvas The canvas this scope should be
* associated with.
*/
setup: function(canvas) {
// Create an empty project for the scope.
// Make sure this is the active scope, so the created project and view
// are automatically associated with it.
paper = this;
this.project = new Project();
// Create a view for the canvas.
if (canvas)
this.view = new View(canvas);
},
clear: function() {
// Remove all projects, views and tools.
for (var i = this.projects.length - 1; i >= 0; i--)

3
src/core/PaperScript.js
View file

@ -239,7 +239,8 @@ var PaperScript = this.PaperScript = new function() {
// so a project is created for it now.
var canvas = PaperScript.getAttribute(script, 'canvas');
canvas = canvas && document.getElementById(canvas);
var scope = new PaperScope(canvas, script);
var scope = new PaperScope(script);
scope.setup(canvas);
if (script.src) {
// If we're loading from a source, request that first and then
// run later.