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class Views {
constructor(container) {
this.container = container;
this._views = [];
this.length = 0;
this.hidden = false;
}
all() {
return this._views;
}
first() {
return this._views[0];
}
last() {
return this._views[this._views.length-1];
}
indexOf(view) {
return this._views.indexOf(view);
}
slice() {
return this._views.slice.apply(this._views, arguments);
}
get(i) {
return this._views[i];
}
append(view){
this._views.push(view);
if(this.container){
this.container.appendChild(view.element);
}
this.length++;
return view;
}
prepend(view){
this._views.unshift(view);
if(this.container){
this.container.insertBefore(view.element, this.container.firstChild);
}
this.length++;
return view;
}
insert(view, index) {
this._views.splice(index, 0, view);
if(this.container){
if(index < this.container.children.length){
this.container.insertBefore(view.element, this.container.children[index]);
} else {
this.container.appendChild(view.element);
}
}
this.length++;
return view;
}
remove(view) {
var index = this._views.indexOf(view);
if(index > -1) {
this._views.splice(index, 1);
}
this.destroy(view);
this.length--;
}
destroy(view) {
if(view.displayed){
view.destroy();
}
if(this.container){
this.container.removeChild(view.element);
}
view = null;
}
// Iterators
forEach() {
return this._views.forEach.apply(this._views, arguments);
}
clear(){
// Remove all views
var view;
var len = this.length;
if(!this.length) return;
for (var i = 0; i < len; i++) {
view = this._views[i];
this.destroy(view);
}
this._views = [];
this.length = 0;
}
find(section){
var view;
var len = this.length;
for (var i = 0; i < len; i++) {
view = this._views[i];
if(view.displayed && view.section.index == section.index) {
return view;
}
}
}
displayed(){
var displayed = [];
var view;
var len = this.length;
for (var i = 0; i < len; i++) {
view = this._views[i];
if(view.displayed){
displayed.push(view);
}
}
return displayed;
}
show(){
var view;
var len = this.length;
for (var i = 0; i < len; i++) {
view = this._views[i];
if(view.displayed){
view.show();
}
}
this.hidden = false;
}
hide(){
var view;
var len = this.length;
for (var i = 0; i < len; i++) {
view = this._views[i];
if(view.displayed){
view.hide();
}
}
this.hidden = true;
}
}
export default Views;
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