[Equanda-svn-commit] SF.net SVN: equanda: [179] trunk/equanda-tapestry5/src/main/resources/org/ equanda/tapestry5/resources/formtraversal.js

[<tri...@us...>]

Revision: 179
          http://equanda.svn.sourceforge.net/equanda/?rev=179&view=rev
Author:   triathlon98
Date:     2007-11-28 02:02:16 -0800 (Wed, 28 Nov 2007)

Log Message:
-----------
EQ-92 add FomrTraversal component

Added Paths:
-----------
    trunk/equanda-tapestry5/src/main/resources/org/equanda/tapestry5/resources/formtraversal.js

Added: trunk/equanda-tapestry5/src/main/resources/org/equanda/tapestry5/resources/formtraversal.js
===================================================================
--- trunk/equanda-tapestry5/src/main/resources/org/equanda/tapestry5/resources/formtraversal.js	                        (rev 0)
+++ trunk/equanda-tapestry5/src/main/resources/org/equanda/tapestry5/resources/formtraversal.js	2007-11-28 10:02:16 UTC (rev 179)
@@ -0,0 +1,324 @@
+// assure first item in form gets focus
+
+function equandaFtFocus()
+{
+    var form=document.forms[0];
+    if (form!=null)
+    {
+        var i, tr, td, elem, tbody;
+        for (i=0; i<form.elements.length; i++)
+        {
+            elem=form.elements[i];
+            if (((elem.tagName=="INPUT" ) && ((elem.type=="text") || (elem.type=="checkbox"))) || (elem.tagName=="SELECT"))
+            {
+                if ((elem.style.display!="none") && !(elem.disabled) && (elem.className!="nodisplay"))
+                {
+                    td=elem.parentNode;
+                    tr=td.parentNode;
+                    tbody=tr.parentNode;
+                    if ((td.style.display!="none") && (td.className!="displayNone") && (tr.style.display!="none") && (tr.className!="displayNone") && (tbody.style.display!="none") && (tbody.className!="displayNone"))
+                    {
+                        elem.focus();
+                        if (elem.tagName=="INPUT") elem.select();
+                        break;
+                    }
+                 }
+            }
+        }
+    }
+}
+
+// form traversal
+
+var equandaFt_SUBMIT_CLASS = "submitButton";
+var equandaFt_SKIP_FIELD_CLASS = "skipField";
+var equandaFtLastKeyTime = null;
+var equandaFt_MAX_DEPTH_CHECK_VISIBILITY = 10;
+// check so many parents to be visible
+
+function equandaFtInit()
+{
+    var agt = navigator.userAgent.toLowerCase();
+    if ( agt.indexOf('msie') != -1 || agt.indexOf('opera') != -1 )
+    {
+        // there is a problem with shift/ctrl keys to detect when they are pressed
+        // onkeydown=shift key can be checked (ctrl+enter doesn't work)
+        // onkeypress=ctrl key can be checked (shift+tab acts as default)
+        // document.onkeydown = KeyHandlerIE;
+        document.onkeypress = equandaFtKeyHandlerIE;
+    }
+    if ( agt.indexOf('gecko') != -1 )
+    {
+        document.onkeypress = equandaFtKeyHandlerNetscape;
+    }
+}
+
+function equandaFtGetStyleClass( element )
+{
+    var nav = !(window.Event);
+    if ( nav )
+        return element.getAttribute("class");
+    else
+        return element.getAttribute("className");
+}
+
+function equandaFtGetCssRules( styleSheet )
+{
+    var nav = !(window.Event);
+    if ( nav )
+        return styleSheet.cssRules ? styleSheet.cssRules : null;
+    else
+        return styleSheet.rules;
+}
+
+function equandaFtClassDisplayNone( className )
+{
+    var i, j;
+    for ( i = 0 ; i < document.styleSheets.length ; i++ )
+    {
+        var rules = equandaFtGetCssRules(document.styleSheets[i]);
+        for ( j = 0 ; j < rules.length ; j++ )
+        {
+            var name = rules[j].selectorText;
+            if ( name != null )
+                if ( ( (name.substring(1) == className) && (name.charAt(0) == '.' )) ||
+                     ( name.selectorText == className ) )
+                {
+                    return rules[j].style.display == "none";
+                }
+        }
+    }
+    return false;
+}
+
+function equandaFtHasClass( element, _className )
+{
+    var classes = equandaFtGetStyleClass(element);
+    if ( classes == null || classes == "" ) return false;
+    while ( 1 == 1 )
+    {
+        if ( classes.indexOf(" ") == -1 )
+        {
+            if ( classes == _className ) return true;
+            break;
+        }
+        else
+        {
+            var className = classes.substring(0, classes.indexOf(" "));
+            if ( className == _className ) return true;
+            classes = classes.substring(classes.indexOf(" ") + 1);
+        }
+    }
+    return false;
+}
+
+function equandaFtIsVisible( element )
+{
+    var depth = equandaFt_MAX_DEPTH_CHECK_VISIBILITY;
+    while ( depth > 0 && element != null && element.tagName != "FORM" )
+    {
+        depth--;
+        if ( element.style.display == "none" ) return false;
+        var classes = equandaFtGetStyleClass(element);
+        if ( classes != null && classes != "" )
+        {
+            while ( true )
+            {
+                if ( classes.indexOf(" ") == -1 )
+                {
+                    if ( equandaFtClassDisplayNone(classes) )  return false;
+                    if ( classes == equandaFt_SKIP_FIELD_CLASS ) return false;
+                    break;
+                }
+                else
+                {
+                    // Commented the next 2 lines.
+                    // This is for the case of class="tabset_content tabset_content_active" in tabtastic.
+                    // (I think it's correct to consider only the last class, like "tabset_content_active" in this case)
+
+                    // var className = classes.substring(0, classes.indexOf(" "));
+                    // if ( classDisplayNone(className)==true ) return false;
+                    classes = classes.substring(classes.indexOf(" ") + 1);
+                }
+            }
+        }
+        element = element.parentNode;
+    }
+    return true;
+}
+
+function equandaFtNetscapeKeyHandler( input, event )
+{
+    var pos, i;
+    equandaFtLastKeyTime = new Date();
+    if ( input.form )
+    {
+        if ( event.which == 13 && event.ctrlKey )
+        {
+            pos = equandaFtGetIndex(input);
+            var btn = null;
+            if ( pos + 1 == input.form.length ) pos = 0;
+            for ( i = pos + 1 ; i != pos ; i++ )
+            {
+                if ( ( input.form[i].type == "submit" || input.form[i].type == "button" ) &&
+                     !(input.form[i].disabled) && input.form[i].style.display != "none" )
+                {
+                    if ( btn == null ) btn = input.form[i];
+                    if ( equandaFtHasClass(input.form[i], equandaFt_SUBMIT_CLASS) )
+                    {
+                        input.form[i].click();
+                        return false;
+                    }
+                }
+                if ( i == input.form.length - 1 ) i = -1;
+            }
+            if ( btn != null )
+            {
+                btn.click();
+                return false;
+            }
+            return false;
+        }
+        if ( event.which == 13 || event.keyCode == 9 )
+        {
+            if ( event.which == 13 &&
+                 ( (( input.type == "submit" ) || ( input.type == "button" )) && equandaFtHasClass(input, equandaFt_SUBMIT_CLASS) ) )
+            {
+                input.click();
+                return false;
+            }
+            if ( event.which == 13 && input.tagName == 'TEXTAREA' )
+            {
+                return true;
+            }
+            var direction = 1;
+            if ( event.shiftKey ) direction = -1;
+            pos = ( equandaFtGetIndex(input) + direction ) % input.form.length;
+            if ( pos == -1 ) pos = input.form.length - 1;
+            while ( 1 == 1 )
+            {
+                if ( !input.form[ pos ].type )
+                    pos += direction;
+                else if ( input.form[ pos ].type == "hidden" )
+                    pos += direction;
+                else if ( input.form[ pos ].disabled )
+                    pos += direction;
+                else if ( input.form[ pos ].style.display == "none" )
+                    pos += direction;
+                else if ( !equandaFtIsVisible(input.form[ pos ] ) )
+                    pos += direction;
+                else
+                    break;
+                if ( pos == input.form.length ) pos = 0;
+                if ( pos == -1 ) pos = input.form.length - 1;
+            }
+            input.form[ pos ].focus();
+            return false;
+        }
+    }
+    return true;
+}
+
+function equandaFtMicrosoftKeyHandler( input )
+{
+    var pos, i;
+    equandaFtLastKeyTime = new Date();
+    if ( event.keyCode == 10 && event.ctrlKey )
+    {
+        pos = equandaFtGetIndex(input);
+        var btn = null;
+        if ( pos + 1 == input.form.length ) pos = 0;
+        for ( i = pos + 1 ; i != pos ; i++ )
+        {
+            if ( ( input.form[i].type == "submit" || input.form[i].type == "button" ) &&
+                 !(input.form[i].disabled) && input.form[i].style.display != "none" )
+            {
+                if ( btn == null ) btn = input.form[i];
+                if ( equandaFtHasClass(input.form[i], equandaFt_SUBMIT_CLASS) )
+                {
+                    input.form[i].click();
+                    return true;
+                }
+            }
+            if ( i == input.form.length - 1 ) i = -1;
+        }
+        if ( btn != null )
+        {
+            btn.click();
+            return true;
+        }
+        return true;
+    }
+    if ( event.keyCode == 13 || event.keyCode == 9 )
+    {
+        if ( event.keyCode == 13 &&
+             ( (( input.type == "submit" ) || ( input.type == "button" )) && equandaFtHasClass(input, equandaFt_SUBMIT_CLASS) ) )
+        {
+            input.form[pos].click();
+            return false;
+        }
+        if ( event.keyCode == 13 && input.tagName == 'TEXTAREA' )
+        {
+            return true;
+        }
+        var direction = 1;
+        if ( event.shiftKey ) direction = -1;
+        pos = ( equandaFtGetIndex(input) + direction) % input.form.length;
+        if ( pos == -1 ) pos = input.form.length - 1;
+        while ( 1 == 1 )
+        {
+            if ( !input.form[ pos ].type )
+                pos += direction;
+            else if ( input.form[ pos ].type == "hidden" )
+                pos += direction;
+            else if ( input.form[ pos ].disabled )
+                pos += direction;
+            else if ( input.form[ pos ].style.display == "none" )
+                pos += direction;
+            else if ( !equandaFtIsVisible(input.form[ pos ] ) )
+                pos += direction;
+            else
+                break;
+            if ( pos == input.form.length ) pos = 0;
+            if ( pos == -1 ) pos = input.form.length - 1;
+        }
+        input.form[ pos ].focus();
+        input = input.form[pos];
+        if ( input.type == "text" )
+        {
+            if ( input.createTextRange )
+            {
+                var v = input.value;
+                var r = input.createTextRange();
+                r.moveStart('character', v.length);
+                r.select();
+            }
+        }
+        return false;
+    }
+    return true;
+}
+
+function equandaFtGetIndex( input )
+{
+    if ( input.form != null )
+    {
+        var index = -1, i = 0;
+        while ( i < input.form.length && index == -1 )
+            if ( input.form[i] == input ) index = i;
+            else i++;
+        return index;
+    }
+    return 0;
+}
+
+function equandaFtKeyHandlerIE()
+{
+    var target = event.target ? event.target : window.event.srcElement;
+    return equandaFtMicrosoftKeyHandler(target);
+}
+function equandaFtKeyHandlerNetscape( event )
+{
+    var target = event.target ? event.target : window.event.srcElement;
+    return equandaFtNetscapeKeyHandler(target, event);
+}


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