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C#

SheetActionPane.cs：源码内容
							using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
namespace OThinker.H3.WorkSheet
{
    /// <summary>
    /// Summary description for SheetWorkItemActionPane.
    /// </summary>
    [DefaultProperty("Text"), ToolboxData("<{0}:SheetActionPane runat=server></{0}:SheetActionPane>")]
    public class SheetActionPane : System.Web.UI.WebControls.WebControl
    {
        private SheetEnviroment _Enviroment;
        /// <summary>
        /// 环境
        /// </summary>
        public SheetEnviroment Enviroment
        {
            get
            {
                return this._Enviroment;
            }
            set
            {
                this._Enviroment = value;
                if (this._Enviroment == null)
                {
                }
                else if (this._Enviroment.IsWorkMode || this._Enviroment.IsOriginateMode)
                {
                    // 操作面板
                    this.InitAsWorkMode();
                }
                else if (this._Enviroment.IsRetrieveMode)
                {
                    // 操作面板
                    this.InitAsRetreiveMode();
                }
            }
        }
        #region 按钮
        private DropDownList _GroupSelector = new DropDownList();
        public DropDownList GroupSelector
        {
            get
            {
                return this._GroupSelector;
            }
        }
        // 保存按钮
        protected LinkButton _Save = new LinkButton();
        public LinkButton Save
        {
            get
            {
                return this._Save;
            }
        }
        // 查看状态
        protected HyperLink _ViewInstanceState = new HyperLink();
        public HyperLink ViewInstanceState
        {
            get
            {
                return this._ViewInstanceState;
            }
        }
        // 征询意见
        protected HyperLink _Consult = new HyperLink();
        public HyperLink Consult
        {
            get
            {
                return this._Consult;
            }
        }
        // 转发
        protected HyperLink _Forward = new HyperLink();
        public HyperLink Forward
        {
            get
            {
                return this._Forward;
            }
        }
        // 取回
        protected HyperLink _Retrieve = new HyperLink();
        public HyperLink Retrieve
        {
            get
            {
                return this._Retrieve;
            }
        }
        // 打回
        protected LinkButton _Rollback = new LinkButton();
        public LinkButton Rollback
        {
            get
            {
                return this._Rollback;
            }
        }
        // 跳转按钮
        protected LinkButton _Jump = new LinkButton();
        public LinkButton Jump
        {
            get
            {
                return this._Jump;
            }
        }
        // 可选择的任务
        protected DropDownList _JumpDests = new DropDownList();
        public DropDownList JumpDests
        {
            get
            {
                return this._JumpDests;
            }
        }
        // 取消
        protected LinkButton _Cancel = new LinkButton();
        public LinkButton Cancel
        {
            get
            {
                return this._Cancel;
            }
        }
        // 挂起
        protected LinkButton _Suspend = new LinkButton();
        public LinkButton Suspend
        {
            get
            {
                return this._Suspend;
            }
        }
        #endregion
        public event SheetSubmitEventHandler Submit;
        public SheetActionPane()
        {
        }
        public void InitAsRetreiveMode()
        {            
            this.Retrieve.Text = "取回";
            this.Retrieve.NavigateUrl = this.Enviroment.GetRetrieveUrl(this.Enviroment.WorkItemID);
            this.Controls.Add(this.Retrieve);
        }
        public void InitAsWorkMode()
        {
            // 保存按钮
            if (this.Enviroment.SheetMode == SheetMode.Work || this.Enviroment.SheetMode == SheetMode.Originate)
            {
                this.AddSplit();
                this.Save.Text = "保存";
                this.Save.Click += new EventHandler(this.Save_Click);
                this.Controls.Add(this.Save);
            }
            // 查看流程状态
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.PermittedActions.ViewInstanceState)
            {
                this.AddSplit();
                this.Controls.Add(this.ViewInstanceState);
                this.ViewInstanceState.Text = "流程状态";
                this.ViewInstanceState.Target = "_blank";
                this.ViewInstanceState.NavigateUrl = this.Enviroment.GetViewInstanceStateUrl(this.Enviroment.InstanceId);
            }
            // 征询意见
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                this.Enviroment.WorkItem.PermittedActions.Consult)
            {
                this.AddSplit();
                this.Controls.Add(this.Consult);
                this.Consult.Text = "征询意见";
                this.Consult.NavigateUrl = this.Enviroment.GetConsultUrl(this.Enviroment.WorkItemID);
            }
            // 转发
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                this.Enviroment.WorkItem.PermittedActions.Forward)
            {
                this.AddSplit();
                this.Controls.Add(this.Forward);
                this.Forward.Text = "转发";
                this.Forward.NavigateUrl = this.Enviroment.GetForwardUrl(this.Enviroment.WorkItemID);
            }
            // 反向流转
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                this.Enviroment.WorkItem.PermittedActions.Backward)
            {
                // 允许回退，所以要获得前驱
                OThinker.H3.WorkflowTemplate.ActivityTemplate[] preActivitys = this.Enviroment.Workflow.GetActivityPreActivity(this.Enviroment.ActivityName);
                if (preActivitys != null)
                {
                    foreach (OThinker.H3.WorkflowTemplate.ActivityTemplate preActivity in preActivitys)
                    {
                        this.AddSplit();
                        this.AddText("↑");
                        LinkButton backward = new LinkButton();
                        this.Controls.Add(backward);
                        backward.Text = preActivity.Name;
                        backward.Click += new EventHandler(this.JmpButton_Click);
                    }
                }
            }
            // 提交
            OThinker.H3.WorkflowTemplate.ActivityTemplate[] postActivitys = this.Enviroment.Workflow.GetActivityPostActivitys(this.Enviroment.ActivityName);
            if (
                postActivitys == null || postActivitys.Length == 0 ||
                (this.Enviroment.SheetMode == SheetMode.Originate && !this.Enviroment.Workflow.GetActivity(this.Enviroment.ActivityName).PermittedActions.Choose) ||
                (this.Enviroment.SheetMode == SheetMode.Work && 
                    (this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Consultancy || 
                    !this.Enviroment.WorkItem.PermittedActions.Choose)))
            {
                this.AddSplit();
                this.AddText("↓");
                // 只有零个或一个后继
                LinkButton submit = new LinkButton();
                submit.Text = "提交";
                this.Controls.Add(submit);
                submit.Click += new EventHandler(this.Submit_Click);
            }
            else
            {
                foreach (OThinker.H3.WorkflowTemplate.ActivityTemplate postActivity in postActivitys)
                {
                    this.AddSplit();
                    this.AddText("↓");
                    LinkButton post = new LinkButton();
                    this.Controls.Add(post);
                    post.Text = postActivity.Name;
                    post.Click += new EventHandler(this.JmpButton_Click);
                }
            }
            // 打回
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                this.Enviroment.WorkItem.PermittedActions.Rollback)
            {
                this.AddSplit();
                this.AddText("↑");
                this.Rollback.Text = "打回";
                this.Rollback.Click += new EventHandler(this.Rollback_Click);
                this.Controls.Add(this.Rollback);
            }
            // 跳转
            if (
                (
                    this.Enviroment.SheetMode == SheetMode.Originate && 
                    this.Enviroment.Workflow.GetActivity(this.Enviroment.ActivityName).PermittedActions.Jump) ||
                (
                    this.Enviroment.SheetMode == SheetMode.Work && 
                    this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                    this.Enviroment.WorkItem.PermittedActions.Jump))
            {
                this.AddSplit();
                foreach (OThinker.H3.WorkflowTemplate.ActivityTemplate processActivity in this.Enviroment.Workflow.Activities)
                {
                    if (processActivity.Name != this.Enviroment.ActivityName)
                    {
                        this.JumpDests.Items.Add(processActivity.Name);
                    }
                }
                this.Controls.Add(this.JumpDests);
                this.Jump.Text = "跳转";
                this.Jump.Click += new EventHandler(Jump_Click);
                this.Controls.Add(this.Jump);
            }
            // 取消/终止
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                (
                    this.Enviroment.WorkItem.PermittedActions.Terminate || 
                    this.Enviroment.WorkItem.TokenId == Instance.Token.InitialTokenId))
            {
                this.AddSplit();
                this.Cancel.Text = this.Enviroment.WorkItem.TokenId == Instance.Token.InitialTokenId ? "取消" : "终止";
                this.Cancel.Click += new EventHandler(this.Cancel_Click);
                this.Controls.Add(this.Cancel);
            }
            // 挂起和反挂起
            if (
                this.Enviroment.SheetMode == SheetMode.Work &&
                this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal && 
                this.Enviroment.WorkItem.PermittedActions.Suspend)
            {
                this.AddSplit();
                string instanceId = this.Enviroment.WorkItem.InstanceId;
                OThinker.H3.Instance.InstanceContext context = OThinker.H3.Server.Engine.InstanceManager.GetInstanceContext(instanceId);
                if (context != null)
                {
                    bool suspended = context.Suspended;
                    this.Suspend.Text = suspended ? "继续" : "挂起";
                    this.Suspend.Click += new EventHandler(this.Suspend_Click);
                    this.Controls.Add(this.Suspend);
                }
            }
            // 操作的身份
            if (this.Enviroment.WorkflowActivity.RequireGroup)
            {
                string[] groups = null;
                if (this.Enviroment.SheetMode == SheetMode.Originate)
                {
                    groups = this.Enviroment.UserValidator.Groups;
                }
                else if (
                    this.Enviroment.SheetMode == SheetMode.Work && 
                    this.Enviroment.WorkItem.ItemType == OThinker.H3.WorkItem.WorkItemType.Normal)
                {
                    // 获得普通型的组
                    groups =
                        this.Enviroment.WorkItem == null ?
                            this.Enviroment.UserValidator.NormalGroups :
                            this.Enviroment.Organization.GetParentGroups(this.Enviroment.WorkItem.Participant, OThinker.Organization.VisibleType.Normal);
                }
                if (groups != null && groups.Length != 0)
                {
                    foreach (string group in groups)
                    {
                        string groupName = this.Enviroment.Organization.GetName(group);
                        this.GroupSelector.Items.Add(new ListItem(groupName, group));
                    }
                    this.GroupSelector.SelectedIndex = 0;
                }
                else
                {
                    this.GroupSelector.Visible = false;
                }
                if (this.GroupSelector.Visible)
                {
                    this.AddSplit();
                }
                this.Controls.Add(this.GroupSelector);
            }
        }
        private void Rollback_Click(object sender, EventArgs e)
        {
            // 保存表单
            if (this.Submit != null)
            {
                this.Submit(this, new SheetSubmitEventArgs(false, null, null));
            }
            // 检查是否允许打回
            H3.Instance.IToken token = this.Enviroment.TokenPool.GetToken(this.Enviroment.WorkItem.InstanceId, this.Enviroment.WorkItem.TokenId);
            bool rollbackable = true;
            // 如果是回滚，那么需要检查是否允许回滚
            if (token == null || token.PreTokens == null)
            {
                rollbackable = false;
            }
            else
            {
                foreach (long preTokenId in token.PreTokens)
                {
                    long[] branches = this.Enviroment.TokenPool.QueryPostToken(this.Enviroment.WorkItem.InstanceId, preTokenId);
                    if (branches != null && branches.Length > 1)
                    {
                        rollbackable = false;
                        break;
                    }
                }
            }
            // 发送打回消息
            if (rollbackable == false)
            {
                this.Enviroment.NotifyMessage("不具备打回的条件");
            }
            else
            {
                // 完成该任务
                OThinker.H3.Server.Engine.WorkItemManager.FinishWorkItem(this.Enviroment.WorkItem.WorkItemID, this.Enviroment.Participant, this.GroupSelector.SelectedValue, OThinker.Data.BoolMatchValue.Unspecified, null);
                // 标记为打回
                OThinker.H3.Server.Engine.TokenPool.AppendDescription(this.Enviroment.WorkItem.InstanceId, this.Enviroment.WorkItem.TokenId, "打回");
                OThinker.H3.Messages.CancelActivityMessage rollbackMessage
                    = new OThinker.H3.Messages.CancelActivityMessage(
                        OThinker.H3.Messages.MessageEmergencyType.Normal,
                        this.Enviroment.WorkItem.InstanceId,
                        this.Enviroment.WorkItem.ActivityName,
                        true,
                        null);
                OThinker.H3.Server.Engine.InstanceManager.SendMessage(rollbackMessage);
                this.Enviroment.NotifyMessage("工作项已经打回");
            }
        }
        private int ControlCount = 0;
        private void AddSplit()
        {
            this.ControlCount++;
            if (this.ControlCount > 1)
            {
                Label split = new Label();
                split.Text = "&nbsp;|&nbsp;";
                this.Controls.Add(split);
            }
        }
        private void AddText(string Text)
        {
            Label label = new Label();
            label.Text = Text;
            this.Controls.Add(label);
        }
        private void JmpButton_Click(object sender, EventArgs e)
        {
            // 跳转
            // 获得目的任务名称
            string destActivityName = ((LinkButton)sender).Text;
            if (this.Submit != null)
            {
                this.Submit(sender, new SheetSubmitEventArgs(true, destActivityName, "跳转到活动：" + destActivityName));
            }
        }
        private void Submit_Click(object sender, EventArgs e)
        {
            // 按照默认的方法进行流转
            if (this.Submit != null)
            {
                this.Submit(sender, new SheetSubmitEventArgs(true, null, "提交"));
            }
        }
        private void Jump_Click(object sender, EventArgs e)
        {
            if (this.Submit != null && this.JumpDests != null && this.JumpDests.SelectedValue != null && this.JumpDests.SelectedValue != "")
            {
                this.Submit(sender, new SheetSubmitEventArgs(true, this.JumpDests.SelectedValue, "跳转到活动：" + this.JumpDests.SelectedValue));
            }
        }
        private void Save_Click(object sender, EventArgs e)
        {
            if (this.Submit != null)
            {
                this.Submit(sender, new SheetSubmitEventArgs(false, null, null));
                this.Enviroment.NotifyMessage("表单保存完毕！");
            }
        }
        private void Cancel_Click(object sender, EventArgs e)
        {
            string instanceId = this.Enviroment.WorkItem.InstanceId;
            // 取消
            this.Enviroment.CancelInstance(instanceId);
        }
        private void Suspend_Click(object sender, EventArgs e)
        {
            string instanceId = this.Enviroment.WorkItem.InstanceId;
            LinkButton suspend = (LinkButton)sender;
            // 要发送的消息
            OThinker.H3.Messages.Message message = null;
            if (suspend.Text == "挂起")
            {
                message = new OThinker.H3.Messages.SuspendMessage(OThinker.H3.Messages.MessageEmergencyType.Normal, instanceId);
            }
            else
            {
                message = new OThinker.H3.Messages.ResumeMessage(OThinker.H3.Messages.MessageEmergencyType.Normal, instanceId);
            }
            OThinker.H3.Server.Engine.InstanceManager.SendMessage(message);
            this.Enviroment.NotifyMessage("挂起流程成功");
        }
        protected override void Render(HtmlTextWriter writer)
        {
            // 添加禁止重复提交的JS
            foreach (System.Web.UI.Control control in this.Controls)
            {
                if (control is LinkButton)
                {
                    bool confirm = false;
                    if (control != this.Save)
                    {
                        confirm = true;
                    }
                    this.ProhibitReSubmit((LinkButton)control, true, confirm);
                }
            }
            writer.Write("<table border="0" cellpadding="0" cellspacing="0" width="100%">");
            writer.Write("<tr>");
            writer.Write("<td bgcolor="#e0e6f6">");
            writer.Write("<div id="" + CheckSubmit_ButtonDiv + "">");
            if (this.DesignMode)
            {
                writer.Write("保存 | 流程状态 | 提交");
            }
            else
            {
                base.Render(writer);
            }
            writer.Write("</div>");
            writer.Write("<div id="" + CheckSubmit_HintID + "" style="display:none;">正在处理您的请求，请稍等……</div>");
            writer.Write("</td></tr></table>");
            // 输出检查重复提交的JS
            writer.Write("<script>" + CheckSubmit_FunctionDef + "</script>");
        }
        #region 避免重复提交的JS
        /// <summary>
        /// 包含按钮的DIV的ID
        /// </summary>
        public const string CheckSubmit_ButtonDiv = "_H3_Submit_ButtonDiv";
        /// <summary>
        /// 包含提示的DIV的ID
        /// </summary>
        public const string CheckSubmit_HintID = "_H3_Submit_Hint";
        /// <summary>
        /// 禁止重复提交的函数名称
        /// </summary>
        public const string CheckSubmit_FunctionName = "_H3_Submit_HideButtion";
        /// <summary>
        /// 函数定义
        /// </summary>
        public const string CheckSubmit_FunctionDef =
            "function " + CheckSubmit_FunctionName + "(){" +
            CheckSubmit_ButtonDiv + ".style.display='none';" +
            CheckSubmit_HintID + ".style.display='block';" + 
            "}";
        private void ProhibitReSubmit(LinkButton Control, bool DisableActionPane, bool Confirm)
        {
            string js_Disable = CheckSubmit_FunctionName + "();";
            string js_PostBack = "__doPostBack('" + Control.ClientID + "', '');";
            string js_Confirm = "if(confirm('确定要进行该操作“" + Control.Text + "”？'))";
            string js = null;
            if (Confirm)
            {
                if (DisableActionPane)
                {
                    js = js_Confirm + "{" + js_Disable + js_PostBack + "}";
                }
                else
                {
                    js = js_Confirm + "{" + js_PostBack + "}";
                }
            }
            else
            {
                if (DisableActionPane)
                {
                    js = js_Disable + js_PostBack;
                }
                else
                {
                    js = js_PostBack;
                }
            }
            if (js != null && js != "")
            {
                    Control.Attributes["href"] = "javascript:" + js;
            }
        }
        #endregion
    }
}

						