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Define Project#isEmpty()

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This commit is contained in:
Jürg Lehni 2013-11-24 22:53:41 +01:00
parent ea62b570f3
commit da9e1f8de7
3 changed files with 14 additions and 2 deletions
src/project
Project.js

12
src/project/Project.js
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@ -92,6 +92,18 @@ var Project = PaperScopeItem.extend(/** @lends Project# */{
this.symbols = [];
},
/**
* Specifies whether the project has any content or not. Note that since
* projects by default are created with one empty layer, this returns alos
* {@code true} if that layer exists but is itself empty.
*
* @return Boolean
*/
isEmpty: function() {
return this.layers.length <= 1
&& (!this.activeLayer || this.activeLayer.isEmpty());
},
/**
* Removes this project from the {@link PaperScope#projects} list, and also
* removes its view, if one was defined.