egroupware/etemplate/js/et2_widget_link.js
2011-09-09 00:05:46 +00:00

337 lines
8.4 KiB
JavaScript

/**
* eGroupWare eTemplate2 - JS Link object
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link http://www.egroupware.org
* @author Nathan Gray
* @copyright 2011 Nathan Gray
* @version $Id$
*/
"use strict";
/*egw:uses
jquery.jquery;
jquery.jquery-ui;
et2_core_inputWidget;
et2_core_valueWidget;
*/
/**
* UI widgets for Egroupware linking system
*/
var et2_link_to = et2_inputWidget.extend({
attributes: {
"application": {
"name": "Application",
"type": "string",
"default": egw_getAppName(),
"description": "Limit to the listed application or applications (comma seperated)"
},
"blur": {
"name": "Placeholder",
"type": "string",
"default": "",
"description": "This text get displayed if an input-field is empty and does not have the input-focus (blur). It can be used to show a default value or a kind of help-text."
},
},
search_timeout: 200, //ms after change to send query
minimum_characters: 2, // Don't send query unless there's at least this many chars
init: function() {
this._super.apply(this, arguments);
this.div = null;
this.search = null;
this.app_select = null;
this.link_button = null;
this.status_span = null;
this.comment = null;
this.file_upload = null;
this.cache = {};
this.createInputWidget();
},
destroy: function() {
this._super.apply(this, arguments);
this.div = null;
this.search.autocomplete("destroy");
this.search = null;
this.app_select = null;
this.link_button = null;
this.status_span = null;
this.comment = null;
this.file_upload.destroy();
this.file_upload = null;
},
/**
* Override to provide proper node for file widget to go in
*/
getDOMNode: function(_sender) {
if(_sender == this) {
return this.div[0];
} else {
return this.file_div[0];
}
},
createInputWidget: function() {
var self = this;
this.div = $j(document.createElement("div")).addClass("et2_link_to");
// Application selection
this.app_select = $j(document.createElement("select")).appendTo(this.div)
.change(function(e) {
self.cache = {}; // Clear cache when app changes
self.options.value.app = self.app_select.val();
})
.css("width","39%");
for(var key in this.options.select_options) {
var option = $j(document.createElement("option"))
.attr("value", key)
.text(this.options.select_options[key]);
option.appendTo(this.app_select);
}
self.options.value.app = this.app_select.val();
// Search input
this.search = $j(document.createElement("input")).attr("type", "search")
.css("width","50%")
.appendTo(this.div);
// Link button
this.link_button = $j(document.createElement("button"))
.text(egw.lang("link"))
.appendTo(this.div).hide()
.click(this, this.createLink);
this.set_blur(this.options.blur ? this.options.blur : egw.lang("search"), this.search);
// Span for indicating status
this.status_span = $j(document.createElement("span"))
.appendTo(this.div).addClass("status").hide();
// Link comment field
this.comment = $j(document.createElement("input"))
.css("display", "block").css("width","89%")
.appendTo(this.div).hide();
this.set_blur(egw.lang("Comment..."),this.comment);
// Autocomplete
this.search.autocomplete({
source: function(request, response) { return self.query(request, response);},
select: function(event, item) { event.data = self; self.select(event,item); return false;},
focus: function(event, item) {
event.stopPropagation();
self.search.val(item.item.label);
return false;
},
minLength: self.minimum_characters,
disabled: self.options.disabled
});
// Need a div for file upload widget
this.file_div = $j(document.createElement("div")).appendTo(this.div);
this.setDOMNode(this.div[0]);
},
doLoadingFinished: function() {
this._super.apply(this, arguments);
var self = this;
// File upload
var file_attrs = {
multiple: true,
id: this.id + '_file',
onFinish: function(event, file_count) {
self.filesUploaded(event);
}
};
this.file_upload = et2_createWidget("file", file_attrs,this);
return true;
},
transformAttributes: function(_attrs) {
this._super.apply(this, arguments);
_attrs["select_options"] = egw.link_app_list('query');
// Check whether the options entry was found, if not read it from the
// content array.
if (_attrs["select_options"] == null)
{
_attrs["select_options"] = this.getArrayMgr('content')
.getEntry("options-" + this.id)
}
// Default to an empty object
if (_attrs["select_options"] == null)
{
_attrs["select_options"] = {};
}
},
getValue: function() {
return this.options.value;
},
set_blur: function(_value, input) {
if(typeof input == 'undefined') input = this.search;
if(_value) {
input.attr("placeholder", _value); // HTML5
if(!input[0].placeholder) {
// Not HTML5
if(input.val() == "") input.val(this.options.blur);
input.focus(input,function(e) {
var placeholder = _value;
if(e.data.val() == placeholder) e.data.val("");
}).blur(input, function(e) {
var placeholder = _value;
if(e.data.val() == "") e.data.val(placeholder);
});
if(input.val() == "") input.val(_value);
}
} else {
this.search.removeAttr("placeholder");
}
},
/**
* Ask server for entries matching selected app/type and filtered by search string
*/
query: function(request, response) {
if(request.term in this.cache) {
return response(this.cache[request.term]);
}
this.search.addClass("loading");
this.link_button.hide();
var request = new egw_json_request("etemplate_widget_link::ajax_link_search::etemplate",
[this.app_select.val(), '', request.term],
this
);
this.response = response;
request.sendRequest(true, this._results, this);
},
/**
* User selected a value
*/
select: function(event, selected) {
event.data.options.value.id = selected.item.value;
event.data.search.val(selected.item.label);
event.data.link_button.show();
event.data.comment.show();
},
/**
* Server found some results
*/
_results: function(data) {
this.search.removeClass("loading");
var result = [];
for(var id in data) {
result.push({"value": id, "label":data[id]});
}
this.cache[this.search.val()] = result;
this.response(result);
},
/**
* User uploaded some files, and they're done
*/
filesUploaded: function(event) {
var self = this;
this.link_button.show();
this.comment.hide();
// Add some comment fields
this.file_upload.progress.children().each(function() {
var comment = jQuery(document.createElement("input"))
.appendTo(this).hide();
self.set_blur(egw.lang("Comment..."),comment);
var comment_icon = jQuery(document.createElement("span"))
.appendTo(this)
.addClass("ui-icon ui-icon-comment")
.click(function() {comment_icon.hide(); comment.toggle();})
});
},
/**
* Create a link using the current internal values
*/
createLink: function(event) {
// Hide extra controls
event.data.link_button.attr("disabled", true);
var values = event.data.options.value;
var self = event.data;
var links = [];
// Links to other entries
if(values.id) {
links.push({
app: values.app,
id: values.id,
remark: self.comment.val()
});
self.comment.val("");
self.search.val("");
}
// Files
for(var file in self.file_upload.options.value) {
links.push({
app: 'file',
id: file,
name: self.file_upload.options.value[file].name,
type: self.file_upload.options.value[file].type,
remark: jQuery("li[file='"+self.file_upload.options.value[file].name+"'] > input", self.file_upload.progress)
.filter(function() { return jQuery(this).attr("placeholder") != jQuery(this).val();}).val()
});
}
var request = new egw_json_request("etemplate_widget_link::ajax_link::etemplate",
[values.to_app, values.to_id, links],
this
);
request.sendRequest(true, self._link_result, self);
},
/**
* Sent some links, server has a result
*/
_link_result: function(success) {
if(success) {
this.comment.hide();
this.link_button.hide().attr("disabled", false);
this.status_span.fadeIn().delay(1000).fadeOut();
delete this.options.value.app;
delete this.options.value.id;
for(var file in this.file_upload.options.value) {
delete this.file_upload.options.value[file];
}
this.file_upload.progress.empty();
}
}
});
et2_register_widget(et2_link_to, ["link-to"]);