ng2-bootstrap
Version:
Native Angular Bootstrap Components
230 lines • 9.38 kB
JavaScript
import { Component, ElementRef, Renderer, Input, Output, EventEmitter, forwardRef } from '@angular/core';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
import { PaginationConfig } from './pagination.config';
export var PAGER_CONTROL_VALUE_ACCESSOR = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(function () { return PagerComponent; }),
multi: true
};
var PAGER_TEMPLATE = "\n <ul class=\"pager\">\n <li [class.disabled]=\"noPrevious()\" [class.previous]=\"align\" [ngClass]=\"{'pull-right': align}\" class=\"{{ pageBtnClass }}\">\n <a href (click)=\"selectPage(page - 1, $event)\">{{getText('previous')}}</a>\n </li>\n <li [class.disabled]=\"noNext()\" [class.next]=\"align\" [ngClass]=\"{'pull-right': align}\" class=\"{{ pageBtnClass }}\">\n <a href (click)=\"selectPage(page + 1, $event)\">{{getText('next')}}</a>\n </li>\n </ul>\n";
export var PagerComponent = (function () {
function PagerComponent(renderer, elementRef, paginationConfig) {
/** fired when total pages count changes, $event:number equals to total pages count */
this.numPages = new EventEmitter();
/** fired when page was changed, $event:{page, itemsPerPage} equals to object with current page index and number of items per page */
this.pageChanged = new EventEmitter();
this.onChange = Function.prototype;
this.onTouched = Function.prototype;
this.inited = false;
this._page = 1;
this.renderer = renderer;
this.elementRef = elementRef;
if (!this.config) {
this.configureOptions(Object.assign({}, paginationConfig.main, paginationConfig.pager));
}
}
Object.defineProperty(PagerComponent.prototype, "itemsPerPage", {
/** maximum number of items per page. If value less than 1 will display all items on one page */
get: function () {
return this._itemsPerPage;
},
set: function (v) {
this._itemsPerPage = v;
this.totalPages = this.calculateTotalPages();
},
enumerable: true,
configurable: true
});
Object.defineProperty(PagerComponent.prototype, "totalItems", {
/** total number of items in all pages */
get: function () {
return this._totalItems;
},
set: function (v) {
this._totalItems = v;
this.totalPages = this.calculateTotalPages();
},
enumerable: true,
configurable: true
});
Object.defineProperty(PagerComponent.prototype, "totalPages", {
get: function () {
return this._totalPages;
},
set: function (v) {
this._totalPages = v;
this.numPages.emit(v);
if (this.inited) {
this.selectPage(this.page);
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(PagerComponent.prototype, "page", {
get: function () {
return this._page;
},
set: function (value) {
var _previous = this._page;
this._page = (value > this.totalPages) ? this.totalPages : (value || 1);
if (_previous === this._page || typeof _previous === 'undefined') {
return;
}
this.pageChanged.emit({
page: this._page,
itemsPerPage: this.itemsPerPage
});
},
enumerable: true,
configurable: true
});
PagerComponent.prototype.configureOptions = function (config) {
this.config = Object.assign({}, config);
};
PagerComponent.prototype.ngOnInit = function () {
this.classMap = this.elementRef.nativeElement.getAttribute('class') || '';
// watch for maxSize
this.maxSize = typeof this.maxSize !== 'undefined'
? this.maxSize
: this.config.maxSize;
this.rotate = typeof this.rotate !== 'undefined'
? this.rotate
: this.config.rotate;
this.boundaryLinks = typeof this.boundaryLinks !== 'undefined'
? this.boundaryLinks
: this.config.boundaryLinks;
this.directionLinks = typeof this.directionLinks !== 'undefined'
? this.directionLinks
: this.config.directionLinks;
this.pageBtnClass = typeof this.pageBtnClass !== 'undefined'
? this.pageBtnClass
: this.config.pageBtnClass;
// base class
this.itemsPerPage = typeof this.itemsPerPage !== 'undefined'
? this.itemsPerPage
: this.config.itemsPerPage;
this.totalPages = this.calculateTotalPages();
// this class
this.pages = this.getPages(this.page, this.totalPages);
this.inited = true;
};
PagerComponent.prototype.writeValue = function (value) {
this.page = value;
this.pages = this.getPages(this.page, this.totalPages);
};
PagerComponent.prototype.getText = function (key) {
return this[key + 'Text'] || this.config[key + 'Text'];
};
PagerComponent.prototype.noPrevious = function () {
return this.page === 1;
};
PagerComponent.prototype.noNext = function () {
return this.page === this.totalPages;
};
PagerComponent.prototype.registerOnChange = function (fn) {
this.onChange = fn;
};
PagerComponent.prototype.registerOnTouched = function (fn) {
this.onTouched = fn;
};
PagerComponent.prototype.selectPage = function (page, event) {
if (event) {
event.preventDefault();
}
if (!this.disabled) {
if (event && event.target) {
var target = event.target;
target.blur();
}
this.writeValue(page);
this.onChange(this.page);
}
};
// Create page object used in template
PagerComponent.prototype.makePage = function (num, text, active) {
return { text: text, number: num, active: active };
};
PagerComponent.prototype.getPages = function (currentPage, totalPages) {
var pages = [];
// Default page limits
var startPage = 1;
var endPage = totalPages;
var isMaxSized = typeof this.maxSize !== 'undefined' && this.maxSize < totalPages;
// recompute if maxSize
if (isMaxSized) {
if (this.rotate) {
// Current page is displayed in the middle of the visible ones
startPage = Math.max(currentPage - Math.floor(this.maxSize / 2), 1);
endPage = startPage + this.maxSize - 1;
// Adjust if limit is exceeded
if (endPage > totalPages) {
endPage = totalPages;
startPage = endPage - this.maxSize + 1;
}
}
else {
// Visible pages are paginated with maxSize
startPage = ((Math.ceil(currentPage / this.maxSize) - 1) * this.maxSize) + 1;
// Adjust last page if limit is exceeded
endPage = Math.min(startPage + this.maxSize - 1, totalPages);
}
}
// Add page number links
for (var num = startPage; num <= endPage; num++) {
var page = this.makePage(num, num.toString(), num === currentPage);
pages.push(page);
}
// Add links to move between page sets
if (isMaxSized && !this.rotate) {
if (startPage > 1) {
var previousPageSet = this.makePage(startPage - 1, '...', false);
pages.unshift(previousPageSet);
}
if (endPage < totalPages) {
var nextPageSet = this.makePage(endPage + 1, '...', false);
pages.push(nextPageSet);
}
}
return pages;
};
// base class
PagerComponent.prototype.calculateTotalPages = function () {
var totalPages = this.itemsPerPage < 1
? 1
: Math.ceil(this.totalItems / this.itemsPerPage);
return Math.max(totalPages || 0, 1);
};
PagerComponent.decorators = [
{ type: Component, args: [{
selector: 'pager',
template: PAGER_TEMPLATE,
providers: [PAGER_CONTROL_VALUE_ACCESSOR]
},] },
];
/** @nocollapse */
PagerComponent.ctorParameters = function () { return [
{ type: Renderer, },
{ type: ElementRef, },
{ type: PaginationConfig, },
]; };
PagerComponent.propDecorators = {
'align': [{ type: Input },],
'maxSize': [{ type: Input },],
'boundaryLinks': [{ type: Input },],
'directionLinks': [{ type: Input },],
'firstText': [{ type: Input },],
'previousText': [{ type: Input },],
'nextText': [{ type: Input },],
'lastText': [{ type: Input },],
'rotate': [{ type: Input },],
'pageBtnClass': [{ type: Input },],
'disabled': [{ type: Input },],
'numPages': [{ type: Output },],
'pageChanged': [{ type: Output },],
'itemsPerPage': [{ type: Input },],
'totalItems': [{ type: Input },],
};
return PagerComponent;
}());
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