How to automatically claim a task as soon as it is opened

[Rahul_Nathwani]

/**This File is   "task-edit-header.js" which is used for the header of the task when a workflow is started.

There is a claim button on the top by clicking the button it will trigger "onClaimButtonClick" event and that event will call a function. So now what I want to do is as soon as the user opens a task it should automatically claim that task by calling that "onClaimButtonClick" event. 

Can anyone help me what I can do..? Thanks in advance

*/

/**
* Copyright (C) 2005-2013 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/

/**
* TaskEditHeader component.
*
* @namespace Alfresco.component
* @class Alfresco.component.TaskEditHeader
*/
(function()
{
/**
* YUI Library aliases
*/
var Dom = YAHOO.util.Dom,
Event = YAHOO.util.Event,
Selector = YAHOO.util.Selector;

/**
* Alfresco Slingshot aliases
*/
var $html = Alfresco.util.encodeHTML,
$hasEventInterest = Alfresco.util.hasEventInterest,
$siteURL = Alfresco.util.siteURL;

/**
* TaskEditHeader constructor.
*
* @param {String} htmlId The HTML id of the parent element
* @return {Alfresco.component.TaskEditHeader} The new TaskEditHeader instance
* @constructor
*/
Alfresco.component.TaskEditHeader = function TaskEditHeader_constructor(htmlId)
{
Alfresco.component.TaskEditHeader.superclass.constructor.call(this, htmlId, ["button"]);

// Re-register with our own name
this.name = "Alfresco.component.TaskEditHeader";

// Instance variables
this.options = YAHOO.lang.merge(this.options, Alfresco.component.TaskEditHeader.superclass.options);
Alfresco.util.ComponentManager.reregister(this);
this.isRunning = false;
this.taskId = null;

/* Decoupled event listeners */
YAHOO.Bubbling.on("taskDetailedData", this.onTaskDetailedData, this);

return this;
};

YAHOO.extend(Alfresco.component.TaskEditHeader, Alfresco.component.ShareFormManager,
{

/**
* Keeps track if this component is running an action or not
*
* @property isRunning
* @type Boolean
*/
isRunning: false,

/**
* The task instance id
*
* @property taskId
* @type String
*/
taskId: null,

/**
* The referrer value query string parameter
*
* @property referrerValue
* @type String
*/
referrerValue: null,

/**
* Fired by YUI when parent element is available for scripting.
* Template initialisation, including instantiation of YUI widgets and event listener binding.
*
* @method onReady
*/
onReady: function TEH_onReady()
{
console.log("TaskEditHeader ");
// Load in the People Finder component from the server
Alfresco.util.Ajax.request(
{
url: Alfresco.constants.URL_SERVICECONTEXT + "components/people-finder/people-finder",
dataObj:
{
htmlid: this.id + "-peopleFinder"
},
successCallback:
{
fn: this.onPeopleFinderLoaded,
scope: this
},
failureMessage: "Could not load People Finder component",
execScripts: true
});

// Format dates (datatype could be 'date' or 'datetime')
var dateEls = document.querySelectorAll('[data-datatype^="date"]');
for (var i = 0; i < dateEls.length; i++) {
var formatString = 'date-format.default'; // Default to date time format
if (dateEls[i].getAttribute('data-datatype') === 'date') {
formatString = 'date-format.mediumDate';
}
dateEls[i].innerHTML = Alfresco.util.formatDate(dateEls[i].innerHTML, Alfresco.util.message(formatString));
};
},

/**
* Called when the people finder template has been loaded.
* Creates a dialog and inserts the people finder for choosing assignees.
*
* @method onPeopleFinderLoaded
* @param response The server response
*/
onPeopleFinderLoaded: function TEH_onPeopleFinderLoaded(response)
{
// Inject the component from the XHR request into it's placeholder DIV element
var finderDiv = Dom.get(this.id + "-peopleFinder");
finderDiv.innerHTML = response.serverResponse.responseText;

// Create the Assignee dialog
this.widgets.reassignPanel = Alfresco.util.createYUIPanel(this.id + "-reassignPanel");

// Find the People Finder by container ID
this.widgets.peopleFinder = Alfresco.util.ComponentManager.get(this.id + "-peopleFinder");

// Set the correct options for our use
this.widgets.peopleFinder.setOptions(
{
singleSelectMode: true,
addButtonLabel: this.msg("button.select")
});

// Make sure we listen for events when the user selects a person
YAHOO.Bubbling.on("personSelected", this.onPersonSelected, this);
},

/**
* Called when the user has selected an assigne from the people finder.
*
* @method onPersonSelected
* @param e DomEvent
* @param args Event parameters (depends on event type)
*/
onPersonSelected: function TEH_onPersonSelected(e, args)
{
// This is a "global" event so we ensure the event is for the current panel by checking panel visibility.
if ($hasEventInterest(this.widgets.peopleFinder, args))
{
this.widgets.reassignPanel.hide();
this._updateTaskProperties(
{
"cm_owner": args[1].userName
}, "reassign");
}
},

/**
* Event handler called when the "taskDetailedData" event is received
*
* @method: onTaskDetailedData
*/
onTaskDetailedData: function TEH_onTaskDetailedData(layer, args)
{
var task = args[1];

// Save task id so we can use it when invoking actions later
this.taskId = task.id;

// Save the referrer value
this.referrerValue = Alfresco.util.getQueryStringParameter('referrer');

// Display actions and create yui buttons
Selector.query("h1 span", this.id, true).innerHTML = $html(task.title);

// ALF-13115 fix, inform user that this task has been completed
if (!task.isEditable)
{
Alfresco.util.PopupManager.displayMessage(
{
text: this.msg("message.task.completed"),
displayTime: 2
});

YAHOO.lang.later(2000, this, function()
{
// Check referrer and fall back to user dashboard if unavailable.
if(this.referrerValue)
{
if(this.referrerValue == 'tasks')
{
document.location.href = $siteURL("my-tasks");
}
else if(this.referrerValue='workflows')
{
document.location.href = $siteURL("my-workflows");
}
}
else
{
document.location.href = this.getSiteDefaultUrl() || Alfresco.constants.URL_CONTEXT;
}
}, []);
}

if (task.isReassignable)
{
// Task is reassignable
this.widgets.reassignButton = Alfresco.util.createYUIButton(this, "reassign", this.onReassignButtonClick);
Dom.removeClass(Selector.query(".actions .reassign", this.id), "hidden");
}

if (task.isClaimable)
{
// Task is claimable
this.widgets.claimButton = Alfresco.util.createYUIButton(this, "claim", this.onClaimButtonClick);
Dom.removeClass(Selector.query(".actions .claim", this.id), "hidden");
Dom.removeClass(Selector.query(".unassigned-message", this.id), "hidden");
}

if (task.isReleasable)
{
// Task is releasable
this.widgets.releaseButton = Alfresco.util.createYUIButton(this, "release", this.onReleaseButtonClick);
Dom.removeClass(Selector.query(".actions .release", this.id), "hidden");
}
},

/**
* Event handler called when the "release" button is clicked
*
* @method: onReleaseButtonClick
*/
onReleaseButtonClick: function TEH_onReleaseButtonClick(layer, args)
{
this._updateTaskProperties(
{
"cm_owner": null
}, "release");
},

/**
* Event handler called when the "claim" button is clicked
*
* @method: onClaimButtonClick
*/
onClaimButtonClick: function TEH_onClaimButtonClick(layer, args)
{
this._updateTaskProperties(
{
"cm_owner": Alfresco.constants.USERNAME
}, "claim");
},

/**
* Event handler called when the "reassign" button is clicked
*
* @method: onReassignButtonClick
*/
onReassignButtonClick: function TEH_onReassignButtonClick(layer, args)
{
this.widgets.peopleFinder.clearResults();
this.widgets.reassignPanel.show();
},

/**
* Updates a task property
*
* @method: _updateTaskProperties
* @private
*/
_updateTaskProperties: function TEH__updateTaskProperties(properties, action)
{
this._disableActionButtons(true);
YAHOO.lang.later(2000, this, function()
{
if (this.isRunning)
{
if (!this.widgets.feedbackMessage)
{
this.widgets.feedbackMessage = Alfresco.util.PopupManager.displayMessage(
{
text: this.msg("message." + action),
spanClass: "wait",
displayTime: 0
});
}
else if (!this.widgets.feedbackMessage.cfg.getProperty("visible"))
{
this.widgets.feedbackMessage.show();
}
}
}, []);

// Run rules for folder (and sub folders)
if (!this.isRunning)
{
this.isRunning = true;

// Start/stop inherit rules from parent folder
Alfresco.util.Ajax.jsonPut(
{
url: Alfresco.constants.PROXY_URI_RELATIVE + "api/task-instances/" + this.taskId,
dataObj: properties,
successCallback:
{
fn: function(response, action)
{
this.isRunning = false;
var data = response.json.data;
if (data)
{
Alfresco.util.PopupManager.displayMessage(
{
text: this.msg("message." + action + ".success")
});

YAHOO.lang.later(3000, this, function(data)
{
if (data.owner && data.owner.userName == Alfresco.constants.USERNAME)
{
// MNT-11418: Save previous URL
if (YAHOO.env.ua.chrome > 0)
{
var prevUrl = (history.state && history.state.previous_url) ? history.state.previous_url : document.referrer;
var currUrl = document.location.href;
if (prevUrl && prevUrl != "")
{
history.pushState({'previous_url': prevUrl, 'current_url': currUrl}, document.title, "");
}
}
// Let the user keep working on the task since he claimed it
document.location.reload();
}
else
{
// Check referrer and fall back to user dashboard if unavailable.
if(this.referrerValue)
{
// MNT-10182. The user may not have rights to see task details any more.
if (this.referrerValue == 'tasks')
{
document.location.href = $siteURL("my-tasks");
}
else
{
// Take the user to the most suitable place
this.navigateForward(true);
}
} else {
// ALF-20001. If referrer isn't available, either because there was no previous page
// (because the user navigated directly to the page via an emailed link)
// or because the referrer header has been blocked, fall back to user dashboard.
document.location.href = this.getSiteDefaultUrl() || Alfresco.constants.URL_CONTEXT;
}
}
}, data);

}
},
obj: action,
scope: this
},
failureCallback:
{
fn: function(response)
{
this.isRunning = false;
this._disableActionButtons(false);
Alfresco.util.PopupManager.displayPrompt(
{
title: this.msg("message.failure"),
text: this.msg("message." + action + ".failure")
});
},
scope: this
}
});
}
},

_disableActionButtons: function(disabled)
{
if (this.widgets.reassignButton)
{
this.widgets.reassignButton.set("disabled", disabled)
}
if (this.widgets.releaseButton)
{
this.widgets.releaseButton.set("disabled", disabled)
}
if (this.widgets.claimButton)
{
this.widgets.claimButton.set("disabled", disabled)
}
}

});
})();

[EddieMay]

Hi @Rahul_Nathwani,

Could I just clarify your requirement? When a user clicks this button in a workflow, you want the that task to be claimed by what task? 

[Rahul_Nathwani · Accepted solution]

Hi EddieMay,

Thanks for the reply.

I want the task to be claimed means it should move the task from unassigned to assigned task and task should move under "me" in Assignee.

Later on I got the solution. U can see below. I added following code in event and it worked perfectly. THANKS ONCE AGAIN...

--------------------------------------------------------------------------------------------------------------------

onTaskDetailedData: function TEH_onTaskDetailedData(layer, args)
{
var task = args[1];

// Save task id so we can use it when invoking actions later
this.taskId = task.id;

// Save the referrer value
this.referrerValue = Alfresco.util.getQueryStringParameter('referrer');

// Display actions and create yui buttons
Selector.query("h1 span", this.id, true).innerHTML = $html(task.title);

if (task.isClaimable){

this._updateTaskProperties(
{
"cm_owner": Alfresco.constants.USERNAME
}, "claim");
}
/** this._updateTaskProperties(
{
"cm_owner": Alfresco.constants.USERNAME
}, "claim");
**/

var item = document.getElementById("page_x002e_data-form_x002e_task-edit_x0023_default_assoc_packageItems-cntrl");
//var len = item.children.length;
console.log("item "+item);
var docNodeRef;

var attachment = document.getElementById("page_x002e_data-form_x002e_task-edit_x0023_default_assoc_packageItems");
//console.log("attachment "+attachment);
var url = window.location.href;
//console.log("url "+url);
url = url.substring(0, url.indexOf("share"));
//console.log("url "+url);
url = url.replace("share","alfresco");
//url = url.replace("8180","8080");
//console.log("url"+url);
if(attachment) {
docNodeRef = attachment.value;
docNodeRef = docNodeRef.substring(docNodeRef.lastIndexOf("/")+1,docNodeRef.length)
console.log("docNodeRef "+docNodeRef);
console.log(url +"share/proxy/alfresco/api/node/content/workspace/SpacesStore/"+docNodeRef);

if(document.getElementById("docpreviewer")) {
document.getElementById("docpreviewer").data = url +"share/proxy/alfresco/api/node/content/workspace/SpacesStore/"+docNodeRef;
}
if(document.getElementById("attachmentlink"))
document.getElementById("attachmentlink").href = url +"share/proxy/alfresco/api/node/content/workspace/SpacesStore/"+docNodeRef;
}

// ALF-13115 fix, inform user that this task has been completed
if (!task.isEditable)
{
Alfresco.util.PopupManager.displayMessage(
{
text: this.msg("message.task.completed"),
displayTime: 2
});

YAHOO.lang.later(2000, this, function()
{
// Check referrer and fall back to user dashboard if unavailable.
if(this.referrerValue)
{
if(this.referrerValue == 'tasks')
{
document.location.href = $siteURL("my-tasks");
}
else if(this.referrerValue='workflows')
{
document.location.href = $siteURL("my-workflows");
}
}
else
{
document.location.href = this.getSiteDefaultUrl() || Alfresco.constants.URL_CONTEXT;
}
}, []);
}

if (task.isReassignable)
{
// Task is reassignable
this.widgets.reassignButton = Alfresco.util.createYUIButton(this, "reassign", this.onReassignButtonClick);
Dom.removeClass(Selector.query(".actions .reassign", this.id), "hidden");
}

if (task.isClaimable)
{
// Task is claimable
this.widgets.claimButton = Alfresco.util.createYUIButton(this, "claim", this.onClaimButtonClick);
Dom.removeClass(Selector.query(".actions .claim", this.id), "hidden");
Dom.removeClass(Selector.query(".unassigned-message", this.id), "hidden");
}

if (task.isReleasable)
{
// Task is releasable
this.widgets.releaseButton = Alfresco.util.createYUIButton(this, "release", this.onReleaseButtonClick);
Dom.removeClass(Selector.query(".actions .release", this.id), "hidden");
}
}

[EddieMay]

Hi @Rahul_Nathwani,

Great that you found a solution and that you posted your solution here - I'm sure this will be helpful to other users.

All the best,