org.eclipse.ui.editors.templates扩展点

在plugin.xml中添加扩展点org.eclipse.ui.editors.templates

   <!--模板--> <extension          point="org.eclipse.ui.editors.templates">          <!--定义不同的上下文-->       <contextType             class="com.workflow.javascript.preferences.ExprTemplateContextType"             id="com.workflow.javascript.preferences.ExprTemplateContextType"             name="ExprTemplateContextType">       </contextType>       <contextType             class="com.workflow.javascript.preferences.SwtTemplateContextType"             id="com.workflow.swt.statements"             name="Swt-statements">       </contextType>       <!--直接编写模板内容-->       <template            autoinsert="true"            contextTypeId="com.workflow.javascript.preferences.ExprTemplateContextType"            description="打印当前流程信息"            id="com.workflow.javascript.template.printCurProcInfo"            name="printCurProcInfo">         <pattern>           var process = ProcessObj.getCurProc();java.lang.System.out.println("---------------curProcessid:"+process.getId()+" curProcessName:"+process.getName()+"-------------------------");         </pattern>      </template>        <!--通过include，将编辑好的模板引入-->        <include             file="templates/default-templates.xml"             translations="$nl$/templates/default-templates.properties">       </include>       <include             file="templates/default-swttemplates.xml"             translations="templates/default-templates.properties">       </include>    </extension>

创建模板上下文用于管理自己的模板参数

<pre name="code" class="html">SwtTemplateContextType类 参考 ExprTemplateContextType 实现

package com.workflow.javascript.preferences;import org.eclipse.jface.text.templates.GlobalTemplateVariables;import org.eclipse.jface.text.templates.TemplateContextType;/** * 模板上下文类型用于管理自己的模板参数 * @author lww * */public class ExprTemplateContextType extends TemplateContextType {public ExprTemplateContextType() {addGlobalResolvers();}/** * We add support for global variables */private void addGlobalResolvers() {addResolver(new GlobalTemplateVariables.Cursor());addResolver(new GlobalTemplateVariables.WordSelection());addResolver(new GlobalTemplateVariables.LineSelection());addResolver(new GlobalTemplateVariables.Dollar());addResolver(new GlobalTemplateVariables.Date());addResolver(new GlobalTemplateVariables.Year());addResolver(new GlobalTemplateVariables.Time());addResolver(new GlobalTemplateVariables.User());}}

在项目中创建文件夹templates里面存放模板文件相关的文件

default-swttemplates文件内容如下：

<?xml version="1.0" encoding="UTF-8"?><templates><template name="TreeColumn" description="%SWTTemplates.treecolumn" id="com.workflow.ui.text.codetemplates.swt.treecolumn" context="com.workflow.swt.statements" enabled="true" autoinsert="false">${type:newType(org.eclipse.swt.widgets.TreeColumn)} ${column:newName(org.eclipse.swt.widgets.TreeColumn)}= new ${type}(${parent:var(org.eclipse.swt.widgets.Tree)}, ${style:link(SWT.LEAD, SWT.CENTER, SWT.TRAIL)});${column}.setText(${word_selection}${});${imp:import(org.eclipse.swt.SWT)}${cursor}</template></templates>

注意：上面编写模板时，context的内容为plugin.xml中定义contextType的ID值。

WorkFlowActivator 类继承AbstractUIPlugin

在该类中

// template storeprivate TemplateStore store = null;// template context type registryprivate ContributionContextTypeRegistry registry = null;public final static String TEMPLATES_KEY = "MyDesigner.template";public static final String EXPR_CONTEXT_TYPE = "com.workflow.javascript.preferences.ExprTemplateContextType";public static final String SWT_CONTEXT_TYPE = "com.workflow.swt.statements";<pre name="code" class="java">/** * Return compute template store */public TemplateStore getTemplateStore() {if (store == null) {store = new ContributionTemplateStore(getContextTypeRegistry(),getDefault().getPreferenceStore(), TEMPLATES_KEY);try {store.load();} catch (IOException e) {getDefault().getLog().log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.ERROR, "",e));}}return store;}/** * Return template context type registry */public ContextTypeRegistry getContextTypeRegistry() {if (registry == null) {// create an configure the contexts available in the template editorregistry = new ContributionContextTypeRegistry();registry.addContextType(EXPR_CONTEXT_TYPE);registry.addContextType(SWT_CONTEXT_TYPE);}return registry;}

ExprTemplatePreferencePage

package com.workflow.javascript.preferences;import mydesigner.WorkFlowActivator;import org.eclipse.ui.IWorkbenchPreferencePage;import org.eclipse.ui.texteditor.templates.TemplatePreferencePage;/** * 模板首选项页面 * @author lww * */public class ExprTemplatePreferencePage extends TemplatePreferencePage implements IWorkbenchPreferencePage {public ExprTemplatePreferencePage() {setPreferenceStore(WorkFlowActivator.getDefault().getPreferenceStore());setTemplateStore(WorkFlowActivator.getDefault().getTemplateStore());setContextTypeRegistry(WorkFlowActivator.getDefault().getContextTypeRegistry());}protected boolean isShowFormatterSetting() {return false;}public boolean performOk() {boolean ok = super.performOk();WorkFlowActivator.getDefault().savePluginPreferences();return ok;}}

效果图：