CubicWeb.require('python.js');
CubicWeb.require('jquery.corner.js');

/* returns the document's baseURI. (baseuri() uses document.baseURI if
 * available and inspects the <base> tag manually otherwise.)
*/
function baseuri() {
    var uri = document.baseURI;
    if (uri) { // some browsers don't define baseURI
	return uri;
    }
    var basetags = document.getElementsByTagName('base');
    if (basetags.length) {
	return getNodeAttribute(basetags[0], 'href');
    }
    return '';
}


/* set body's cursor to 'progress' */
function setProgressCursor() {
    var body = document.getElementsByTagName('body')[0];
    body.style.cursor = 'progress';
}

/* reset body's cursor to default (mouse cursor). The main
 * purpose of this function is to be used as a callback in the
 * deferreds' callbacks chain. */
function resetCursor(result) {
    var body = document.getElementsByTagName('body')[0];
    body.style.cursor = 'default';
    // pass result to next callback in the callback chain
    return result;
}

function updateMessage(msg) {
    var msgdiv = DIV({'class':'message'});
    // don't pass msg to DIV() directly because DIV will html escape it
    // and msg should alreay be html escaped at this point.
    msgdiv.innerHTML = msg;
    jQuery('#appMsg').removeClass('hidden').empty().append(msgdiv);
}

/* builds an url from an object (used as a dictionnary)
 * Notable difference with MochiKit's queryString: asURL does not
 * *url_quote* each value found in the dictionnary
 *
 * >>> asURL({'rql' : "RQL", 'x': [1, 2], 'itemvid' : "oneline"})
 * rql=RQL&vid=list&itemvid=oneline&x=1&x=2
 */
function asURL(props) {
    var chunks = [];
    for(key in props) {
	var value = props[key];
	// generate a list of couple key=value if key is multivalued
	if (isArrayLike(value)) {
	    for (var i=0; i<value.length;i++) {
		chunks.push(key + '=' + value[i]);
	    }
	} else {
	    chunks.push(key + '=' + value);
	}
    }
    return chunks.join('&');
}

/* return selected value of a combo box if any
 */
function firstSelected(selectNode) {
    var selection = filter(attrgetter('selected'), selectNode.options);
    return (selection.length > 0) ? getNodeAttribute(selection[0], 'value'):null;
}

/* toggle visibility of an element by its id
 */
function toggleVisibility(elemId) {
    jqNode(elemId).toggleClass('hidden');
}


/* toggles visibility of login popup div */
// XXX used exactly ONCE in basecomponents
function popupLoginBox() {
    toggleVisibility('popupLoginBox');
    jQuery('#__login:visible').focus();
}


/* returns the list of elements in the document matching the tag name
 * and the properties provided
 *
 * @param tagName the tag's name
 * @param properties a js Object used as a dict
 * @return an iterator (if a *real* array is needed, you can use the
 *                      list() function)
 */
function getElementsMatching(tagName, properties, /* optional */ parent) {
    parent = parent || document;
    return filter(function elementMatches(element) {
                     for (prop in properties) {
                       if (getNodeAttribute(element, prop) != properties[prop]) {
	                 return false;}}
                    return true;},
                  parent.getElementsByTagName(tagName));
}

/*
 * sets checked/unchecked status of checkboxes
 */
function setCheckboxesState(nameprefix, checked){
    // XXX: this looks in *all* the document for inputs
    var elements = getElementsMatching('input', {'type': "checkbox"});
    filterfunc = function(cb) { return nameprefix && cb.name.startsWith(nameprefix); };
    forEach(filter(filterfunc, elements), function(cb) {cb.checked=checked;});
}

function setCheckboxesState2(nameprefix, value, checked){
    // XXX: this looks in *all* the document for inputs
    var elements = getElementsMatching('input', {'type': "checkbox"});
    filterfunc = function(cb) { return nameprefix && cb.name.startsWith(nameprefix) && cb.value == value; };
    forEach(filter(filterfunc, elements), function(cb) {cb.checked=checked;});
}


/* this function is a hack to build a dom node from html source */
function html2dom(source) {
    var tmpNode = SPAN();
    tmpNode.innerHTML = source;
    if (tmpNode.childNodes.length == 1) {
	return tmpNode.firstChild;
    }
    else {
	// we leave the span node when `source` has no root node
	// XXX This is cleary not the best solution, but css/html-wise,
	///    a span not should not be too  much disturbing
	return tmpNode;
    }
}


// *** HELPERS **************************************************** //
function rql_for_eid(eid) { return 'Any X WHERE X eid ' + eid; }
function isTextNode(domNode) { return domNode.nodeType == 3; }
function isElementNode(domNode) { return domNode.nodeType == 1; }

function autogrow(area) {
    if (area.scrollHeight > area.clientHeight && !window.opera) {
	if (area.rows < 20) {
	    area.rows += 2;
	}
    }
}
//============= page loading events ==========================================//

CubicWeb.rounded = [
		    ['div.sideBoxBody', 'bottom 6px'],
		    ['div.boxTitle, div.boxPrefTitle, div.sideBoxTitle, th.month', 'top 6px']
		    ];

function roundedCorners(node) {
    node = jQuery(node);
    for(var r=0; r < CubicWeb.rounded.length; r++) {
       node.find(CubicWeb.rounded[r][0]).corner(CubicWeb.rounded[r][1]);
    }
}

jQuery(document).ready(function () {roundedCorners(this.body);});

CubicWeb.provide('corners.js');

CubicWeb.provide('htmlhelpers.js');
