Activiti Model Editor组件
我的
了解Activiti Explorer及其Vaadin实现方式博文里提到Activiti Explorer使用的是Vaadin架构，但是Activiti
模型编辑器组件却没用使用Vaadin架构，而是采用Angular.JS的MVC模式。Activiti 模型编辑器组件的客户端代码位于Activiti\modules\activiti-webapp-explorer2\src\main\webapp\editor-app\。
该目录下的editor.html是Activiti Modeler Editor的主界面HTML代码
其中palette区是通过Angular.JS使用stencilsets\bpmn2.0\icons下多个子目录内的PNG图像形成的多组列表。其节点层次关系获取相关代码为：
- stencil-controller.js
- Activiti\modules\activiti-modeler\src\main\java\org\activiti\rest\editor\main\StencilsetRestResource.java
- Activiti\modules\activiti-webapp-explorer2\src\main\resources\stencilset.json
editor.html中的视图与两个控制器进行了绑定:
- stencil-controller.js：处理对canvas中BPMN元素的操作，很多处理是通过editor目录下的QRYX库完成的
- toolbar-controller.js：处理对工具栏的操作，很多处理由configuration\toolbar-default-actions.js完成
保存模型操作
保存模型操作，是通过toolbar-default-actions.js中的SaveModel方法完成的，它需要将三部分信息传给服务器：- 模型的元数据：例如模型名称、分类、创建时间、最后一次更新时间等等
- 模型JSON数据：将canvas内的图像数据转换成JSON数据UTF8字符串
{"resourceId": 53, "properties": { "process_id": "process", "name": "", "documentation": "", "process_author": "", "process_version": "", "process_namespace": "http://www.activiti.org/processdef", "executionlisteners": "", "eventlisteners": "" }, "stencil": { "id": "BPMNDiagram" }, "childShapes": [ { "resourceId": "sid-4F7484B9-11EC-4FCE-8950-FEFFB723D88B", "properties": { "overrideid": "", "name": "", "documentation": "", "executionlisteners": "", "initiator": "", "formkeydefinition": "", "formproperties": "" }, "stencil": { "id": "StartNoneEvent" }, "childShapes": [], "outgoing": [ { "resourceId": "sid-B589A0D9-FA79-4C12-95B7-253E72480384" } ], "bounds": { "lowerRight": { "x": 259, "y": 139 }, "upperLeft": { "x": 229, "y": 109 } }, "dockers": [] }, { "resourceId": "sid-1A762474-62B9-4F3D-A81C-1ADD46AF7D2F", "properties": { "overrideid": "", "name": "", "documentation": "", "asynchronousdefinition": "false", "exclusivedefinition": "false", "executionlisteners": "", "multiinstance_type": "None", "multiinstance_cardinality": "", "multiinstance_collection": "", "multiinstance_variable": "", "multiinstance_condition": "",