Your IP : 3.147.56.105
(function(){
if(typeof BX.ui != 'object')
BX.ui = {};
//////////////////////////////
// base widget
//////////////////////////////
BX.ui.widget = function(opts){
BX.merge(this, {
opts: {
scope: false, // it should be either native dom object, or string that represents node id
useSpawn: false, // if set to true, you can do .spawn() on this object
messages: {}, // language-dependent messages to display
controls: {}, // known links to controls
bindEvents: {}, // event pre-binding (when use this, keep in mind that the resulting instance could not be fully formed yet)
removeTemplates: true, // remove script nodes after search
initializeByGlobalEvent: false, // if equals to a not-empty string, initialization will be performed only by event with that name, being fired on document
globalEventScope: 'document' // initializeByGlobalEvent scope (could be 'document' or 'window')
},
vars: {}, // significant variables
ctrls: {}, // links to controls
tmpls: {}, // templates
sys: {
stack: {init:[]},
code: 'widget', // only [a-z0-9_-] allowed
initialized: false
}
});
this.pushFuncStack('init', BX.ui.widget);
this.isUIWidget = true; // prevent BX.merge() from going deeper on a widget instance
}
// the following functions can be overrided with inheritance
BX.merge(BX.ui.widget.prototype, {
////////////////////////////
/// about initialization
// only basic things here
preInit: function(){
var ctx = this,
so = this.opts,
sc = this.ctrls,
code = this.sys.code;
sc.scope = null;
if(!('querySelector' in document))
throw new Error('Your browser does not support querySelector');
if(!code.match(/^[a-zA-Z0-9-_]+$/))
throw new Error('Only letters, digitis, "-" and "_" allowed in code');
},
// member of stack of initializers, must be defined even if do nothing
init: function(){
var ctx = this,
sc = this.ctrls,
so = this.opts,
code = this.sys.code;
if(so.scope !== false){ // some widgets may have no scope
sc.scope = BX.type.isNotEmptyString(so.scope) ? BX(so.scope) : so.scope;
if(!BX.type.isElementNode(sc.scope))
throw new Error('Invalid node passed');
if(so.useSpawn && sc.scope)
ctx.tmpls['scope'] = sc.scope.outerHTML;
// templates
var templates = sc.scope.querySelectorAll('script[type="text/html"]');
for(var k = 0; k < templates.length; k++){
var id = BX.data(templates[k], 'template-id');
if(typeof id == 'string' && id.length > 0 && id.search('bx-ui-'+code) == 0){
id = id.replace('bx-ui-'+code+'-', '');
ctx.tmpls[id] = templates[k].innerHTML;
if(this.opts.removeTemplates)
BX.remove(templates[k]);
}
}
}
// events
if(typeof so.bindEvents == 'object'){
for(var k in so.bindEvents)
{
if(so.bindEvents.hasOwnProperty(k))
if(BX.type.isFunction(so.bindEvents[k]))
this.bindEvent(k, so.bindEvents[k]);
}
}
so.bindEvents = null;
},
remove: function(){
// drop scope
if(BX.type.isDomNode(this.ctrls.scope))
this.ctrls.scope.innerHTML = '';
// ubind custom events
BX.unbindAll(this);
// here should be a mechanism of "remove stack", just equal to "init stack", but works in reversed manner
/*
this.opts = null;
this.vars = null;
this.ctrls = null;
this.tmpls = null;
this.sys = null;
*/
// later unregister in global dispatcher, if ID is set
},
////////////////////////////
/// about system
getControlClassName: function(id){
return 'bx-ui-'+this.sys.code+'-'+id;
},
getControl: function(id, notRequired, scope, getAll){
if(!BX.type.isNotEmptyString(id))
return null;
if(BX.type.isElementNode(this.opts.controls[id]))
return this.opts.controls[id];
if(!this.ctrls.scope && !searchWholeDoc)
return null;
var sScope = this.ctrls.scope;
if(BX.type.isElementNode(scope))
sScope = scope;
var checkFound = function(result){
return (!getAll && result !== null) || (getAll && result.length > 0);
};
try{
// it might be in a special data attribute
var node = sScope[getAll ? 'querySelectorAll' : 'querySelector']('[data-bx-ui-id="'+this.sys.code+'-'+id+'"]');
if(checkFound(node))
return node;
}catch(e){}
try{
// it might be control class
var node = sScope[getAll ? 'querySelectorAll' : 'querySelector']('.'+this.getControlClassName(id));
if(checkFound(node))
return node;
}catch(e){}
try{
// it might be some other class
var node = sScope[getAll ? 'querySelectorAll' : 'querySelector']('.'+id);
if(checkFound(node))
return node;
}catch(e){}
try{
// last chance - it might be a specified selector
var node = sScope[getAll ? 'querySelectorAll' : 'querySelector'](id);
if(checkFound(node))
return node;
}catch(e){}
if(node === null && !notRequired)
throw new Error('Requested control node can not be found ('+id+')');
return node;
},
setOption: function(name, value){
this.opts[name] = value;
},
getOption: function(name){
return this.opts[name];
},
getSysCode: function(){
return this.sys.code;
},
////////////////////////////
/// about templating
template: function(id, html)
{
if(typeof html == 'undefined')
{
return this.tmpls[id];
}
else
{
if(!BX.type.isString(html))
throw new TypeError('Bad template html');
this.tmpls[id] = html;
}
},
getHTMLByTemplate: function(templateId, replacements){
var html = this.tmpls[templateId];
if(!BX.type.isNotEmptyString(html))
{
BX.debug("template not found: "+templateId);
return '';
}
for(var k in replacements)
{
if(!replacements.hasOwnProperty(k))
continue;
if(typeof replacements[k] != 'undefined' && replacements.hasOwnProperty(k)){
var replaceWith = '';
if(k.toString().indexOf('=') == 0){ // leading '=' stands for an unsafe replace - no escaping
replaceWith = replacements[k].toString();
k = k.toString().substr(1);
}else
replaceWith = BX.util.htmlspecialchars(replacements[k]).toString();
var placeHolder = '{{'+k.toString().toLowerCase()+'}}';
if(replaceWith.search(placeHolder) >= 0) // you must be joking
replaceWith = '';
while(html.search(placeHolder) >= 0) // new RegExp('', 'g') on user-controlled data seems not so harmless
html = html.replace(placeHolder, replaceWith);
}
}
return html;
},
createNodesByTemplate: function(templateId, replacements, onlyTags){
var html = this.getHTMLByTemplate(templateId, replacements);
var template = this.tmpls[templateId];
if(!BX.type.isNotEmptyString(template))
{
return null;
}
template = template.replace(/^\s\s*/, '').replace(/\s\s*$/, ''); // trim
// table makeup behaves not so well when being parsed by a browser, so a little hack is on route:
var isTableRow = false;
var isTableCell = false;
if(template.search(/^<\s*(tr|th)[^<]*>/) >= 0)
isTableRow = true;
else if(template.search(/^<\s*td[^<]*>/) >= 0)
isTableCell = true;
var keeper = document.createElement('div');
if(isTableRow || isTableCell){
if(isTableRow){
keeper.innerHTML = '<table><tbody>'+html+'</tbody></table>';
keeper = keeper.childNodes[0].childNodes[0];
}else{
keeper.innerHTML = '<table><tbody><tr>'+html+'</tr></tbody></table>';
keeper = keeper.childNodes[0].childNodes[0].childNodes[0];
}
}else
keeper.innerHTML = html;
if(onlyTags){
var children = keeper.childNodes;
var result = [];
// we need only non-text nodes
for(var k = 0; k < children.length; k++)
if(BX.type.isElementNode(children[k]))
result.push(children[k]);
return result;
}else
return Array.prototype.slice.call(keeper.childNodes);
},
replaceTemplate: function(templateId, html){
this.tmpls[templateId] = html;
},
////////////////////////////
/// about inheritance
parentConstruct: function(owner, opts){
var c = owner.superclass;
if(typeof c == 'object')
c.constructor.apply(this, [opts, true]);
},
handleInitStack: function(nf, owner, opts){
this.pushFuncStack('init', owner);
if(!nf){
BX.merge(this.opts, opts);
BX.ui.widget.prototype.preInit.call(this);
var init = function(){
if(this.sys.initialized) // already initialized once
return;
this.resolveFuncStack('init'); // resove init stacks
for(var i in this.sys.stack)
{
if(this.sys.stack.hasOwnProperty(i))
if(i != 'init')
this.resolveFuncStack(i, true); // resolve all other stacks
}
this.sys.initialized = true;
this.fireEvent('init', [this]);
};
if(BX.type.isString(this.opts.initializeByGlobalEvent) && this.opts.initializeByGlobalEvent.length > 0){
var scope = this.opts.globalEventScope == 'window' ? window : document;
BX.addCustomEvent(scope, this.opts.initializeByGlobalEvent, BX.proxy(init, this));
}else
init.call(this);
}
},
// when you add fName to the stack, function with the corresponding name must exist, at least equal to BX.DoNothing()
pushFuncStack: function(fName, owner){
if(BX.type.isFunction(owner.prototype[fName])){
if(typeof this.sys.stack[fName] == 'undefined')
this.sys.stack[fName] = [];
this.sys.stack[fName].push({owner: owner, f: owner.prototype[fName]});
}
},
disableInFuncStack: function(fName, owner){
var stack = this.sys.stack[fName];
if(typeof stack == 'undefined')
return;
for(var k = 0; k < stack.length; k++){
if(stack[k].owner == owner)
stack[k].f = BX.DoNothing;
}
},
resolveFuncStack: function(fName, fire){
var stack = this.sys.stack[fName];
if(typeof stack == 'undefined')
return;
for(var k = 0; k < stack.length; k++){
stack[k].f.call(this);
}
if(fire)
this.fireEvent(fName, [this], document);
this.sys.stack[fName] = null;
},
////////////////////////////
/// about events
fireEvent: function(eventName, args, scope){
scope = scope || this;
args = args || [];
BX.onCustomEvent(scope, 'bx-ui-'+this.sys.code+'-'+eventName, args);
},
bindEvent: function(eventName, callback){
BX.addCustomEvent(this, 'bx-ui-'+this.sys.code+'-'+eventName, callback);
},
////////////////////////////
/// about css states
setCSSState: function(statName, scope)
{
this.changeCSSState(statName, scope, true);
},
dropCSSState: function(statName, scope)
{
this.changeCSSState(statName, scope, false);
},
changeCSSState: function(statName, scope, way)
{
scope = scope || this.ctrls.scope;
if(typeof statName != 'string' || statName.length == 0)
return;
BX[way ? 'addClass' : 'removeClass'](scope, 'bx-ui-state-'+statName);
},
////////////////////////////
/// about miscellaneous
spawn: function(node, onSpawn){
// if spawning was enabled, you can spawn widget on auto-duplicated scope
// otherwise, you should prepare scope by yourself
if(this.opts.useSpawn)
BX.html(node, this.tmpls.scope);
var opts = BX.clone(this.opts);
opts.scope = node;
if(BX.type.isFunction(onSpawn))
onSpawn.apply(this, [opts, node]);
return new this.constructor(opts);
},
getRandom: function(){
// only letters, digits, - and _ allowed to return
return 'bx'+this.sys.code+
Math.floor((Math.random() * 1000) + 1)+
Math.floor((Math.random() * 1000) + 1);
}
});
})();