https://ebooks.edu.gr/ebooks/utils.js?v1.1

1/*
2 * The contents of this file are subject to the license and copyright
3 * detailed in the LICENSE and NOTICE files at the root of the source
4 * tree and available online at
5 *
6 * http://www.dspace.org/license/
7 */
8/*
9 * Utility Javascript methods for DSpace
10 */
11
12// Popup window - here so it can be referred to by several methods
13var popupWindow;
14
15// =========================================================
16//  Methods for e-person popup window
17// =========================================================
18
19// Add to list of e-people on this page -- invoked by eperson popup window
20function addEPerson(id, email, name)
21{
22    var newplace = window.document.epersongroup.eperson_id.options.length;
23
24    if (newplace > 0 && window.document.epersongroup.eperson_id.options[0].value == "")
25    {
26        newplace = 0;
27    }
28
29    // First we check to see if e-person is already there
30    for (var i = 0; i < window.document.epersongroup.eperson_id.options.length; i++)
31    {
32        if (window.document.epersongroup.eperson_id.options[i].value == id)
33        {
34            newplace = -1;
35        }
36    }
37
38    if (newplace > -1)
39    {
40        window.document.epersongroup.eperson_id.options[newplace] = new Option(name + " (" + email + ")", id);
41    }
42}
43
44// Add to list of groups on this page -- invoked by eperson popup window
45function addGroup(id, name)
46{
47    var newplace = window.document.epersongroup.group_ids.options.length;
48
49	if (newplace > 0 && window.document.epersongroup.group_ids.options[0].value == "")
50    {
51        newplace = 0;
52    }
53
54    // First we check to see if group is already there
55    for (var i = 0; i < window.document.epersongroup.group_ids.options.length; i++)
56    {
57        // is it in the list already
58        if (window.document.epersongroup.group_ids.options[i].value == id)
59        {
60            newplace = -1;
61        }
62
63        // are we trying to add the new group to the new group on an Edit Group page (recursive)
64        if (window.document.epersongroup.group_id)
65        {
66            if (window.document.epersongroup.group_id.value == id)
67            {
68                newplace = -1;
69            }
70        }
71    }
72
73    if (newplace > -1)
74    {
75        window.document.epersongroup.group_ids.options[newplace] = new Option(name + " (" + id + ")", id);
76    }
77}
78
79// This needs to be invoked in the 'onClick' javascript event for buttons
80// on pages with a dspace:selecteperson element in them
81function finishEPerson()
82{
83    selectAll(window.document.epersongroup.eperson_id);
84
85	if (popupWindow != null)
86	{
87		popupWindow.close();
88	}
89}
90
91// This needs to be invoked in the 'onClick' javascript event for buttons
92// on pages with a dspace:selecteperson element in them
93function finishGroups()
94{
95    selectAll(window.document.epersongroup.group_ids);
96
97    if (popupWindow != null)
98    {
99		popupWindow.close();
100    }
101}
102
103// =========================================================
104//  Miscellaneous utility methods
105// =========================================================
106
107// Open a popup window (or bring to front if already open)
108function popup_window(winURL, winName)
109{
110    var props = 'scrollBars=yes,resizable=yes,toolbar=no,menubar=no,location=no,directories=no,width=640,height=480';
111    popupWindow = window.open(winURL, winName, props);
112    popupWindow.focus();
113}
114
115
116// Select all options in a <SELECT> list
117function selectAll(sourceList)
118{
119    for(var i = 0; i < sourceList.options.length; i++)
120    {
121        if ((sourceList.options[i] != null) && (sourceList.options[i].value != ""))
122            sourceList.options[i].selected = true;
123    }
124    return true;
125}
126
127// Deletes the selected options from supplied <SELECT> list
128function removeSelected(sourceList)
129{
130    var maxCnt = sourceList.options.length;
131    for(var i = maxCnt - 1; i >= 0; i--)
132    {
133        if ((sourceList.options[i] != null) && (sourceList.options[i].selected == true))
134        {
135            sourceList.options[i] = null;
136        }
137    }
138}
139
140
141// Disables accidentally submitting a form when the "Enter" key is pressed.
142// Just add "onkeydown='return disableEnterKey(event);'" to form.
143function disableEnterKey(e)
144{
145     var key;
146
147     if(window.event)
148          key = window.event.keyCode;     //Internet Explorer
149     else
150          key = e.which;     //Firefox & Netscape
151
152     if(key == 13)  //if "Enter" pressed, then disable!
153          return false;

154     else
155          return true;
156}
157
158
159//******************************************************
160// Functions used by controlled vocabulary add-on
161// There might be overlaping with existing functions
162//******************************************************
163
164function expandCollapse(node, contextPath) {
165	node = node.parentNode;
166	var childNode  = (node.getElementsByTagName("ul"))[0];
167
168	if(!childNode) return false;
169
170	var image = node.getElementsByTagName("img")[0];
171	
172	if(childNode.style.display != "block") {
173		childNode.style.display  = "block";
174		image.src = contextPath + "/image/controlledvocabulary/m.gif";
175		image.alt = "Collapse search term category";
176	} else {
177		childNode.style.display  = "none";
178		image.src = contextPath + "/image/controlledvocabulary/p.gif";
179		image.alt = "Expand search term category";
180	}
181	
182	return false;
183}
184
185
186function getAnchorText(ahref) {
187 	if(isMicrosoft()) return ahref.childNodes.item(0).nodeValue;
188	else return ahref.text;
189}
190
191function getTextValue(node) {
192 	if(node.nodeName == "A") {
193 		return getAnchorText(node);
194 	} else {
195 		return "";
196 	}
197 	
198}
199
200
201function getParentTextNode(node) {
202	var parentNode = node.parentNode.parentNode.parentNode;
203	var children = parentNode.childNodes;
204	var textNode;
205	for(var i=0; i< children.length; i++) {
206		var child = children.item(i);
207		if(child.className == "value") {
208			return child;
209		}
210	}
211	return null;
212}
213
214function ec(node, contextPath) {
215	expandCollapse(node, contextPath);
216	return false;
217}
218
219
220function i(node) {
221	return sendBackToParentWindow(node);
222}
223
224
225function getChildrenByTagName(rootNode, tagName) {
226	var children = rootNode.childNodes;
227	var result = new Array(0);
228	if(children == null) return result;
229	for(var i=0; i<children.length; i++) {
230		if(children[i].tagName == tagName) {
231			var elementArray = new Array(1);
232			elementArray[0] = children[i];
233			result = result.concat(elementArray);
234		}
235	}
236	return result;
237}
238
239function popUp(URL) {
240	var page;
241	page = window.open(URL, 'controlledvocabulary', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=650,height=450');
242}
243
244
245function isNetscape(v) {
246		  return isBrowser("Netscape", v);
247}
248	
249function isMicrosoft(v) {
250		  return isBrowser("Microsoft", v);
251}
252
253function isMicrosoft() {
254		  return isBrowser("Microsoft", 0);
255}
256
257
258function isBrowser(b,v) {
259		  browserOk = false;
260		  versionOk = false;
261
262		  browserOk = (navigator.appName.indexOf(b) != -1);
263		  if (v == 0) versionOk = true;
264		  else  versionOk = (v <= parseInt(navigator.appVersion));
265		  return browserOk && versionOk;
266}
267
268
269