primeng
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primeng) [ • 12 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/common'), require('primeng/dom')) :
typeof define === 'function' && define.amd ? define('primeng/scrollpanel', ['exports', '@angular/core', '@angular/common', 'primeng/dom'], factory) :
(global = global || self, factory((global.primeng = global.primeng || {}, global.primeng.scrollpanel = {}), global.ng.core, global.ng.common, global.primeng.dom));
}(this, (function (exports, core, common, dom) { 'use strict';
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var ScrollPanel = /** @class */ (function () {
function ScrollPanel(el, zone) {
this.el = el;
this.zone = zone;
this.timeoutFrame = function (fn) { return setTimeout(fn, 0); };
}
ScrollPanel.prototype.ngAfterViewInit = function () {
var _this = this;
this.zone.runOutsideAngular(function () {
_this.moveBar();
_this.moveBar = _this.moveBar.bind(_this);
_this.onXBarMouseDown = _this.onXBarMouseDown.bind(_this);
_this.onYBarMouseDown = _this.onYBarMouseDown.bind(_this);
_this.onDocumentMouseMove = _this.onDocumentMouseMove.bind(_this);
_this.onDocumentMouseUp = _this.onDocumentMouseUp.bind(_this);
window.addEventListener('resize', _this.moveBar);
_this.contentViewChild.nativeElement.addEventListener('scroll', _this.moveBar);
_this.contentViewChild.nativeElement.addEventListener('mouseenter', _this.moveBar);
_this.xBarViewChild.nativeElement.addEventListener('mousedown', _this.onXBarMouseDown);
_this.yBarViewChild.nativeElement.addEventListener('mousedown', _this.onYBarMouseDown);
_this.calculateContainerHeight();
_this.initialized = true;
});
};
ScrollPanel.prototype.calculateContainerHeight = function () {
var container = this.containerViewChild.nativeElement;
var content = this.contentViewChild.nativeElement;
var xBar = this.xBarViewChild.nativeElement;
var containerStyles = getComputedStyle(container), xBarStyles = getComputedStyle(xBar), pureContainerHeight = dom.DomHandler.getHeight(container) - parseInt(xBarStyles['height'], 10);
if (containerStyles['max-height'] != "none" && pureContainerHeight == 0) {
if (content.offsetHeight + parseInt(xBarStyles['height'], 10) > parseInt(containerStyles['max-height'], 10)) {
container.style.height = containerStyles['max-height'];
}
else {
container.style.height = content.offsetHeight + parseFloat(containerStyles.paddingTop) + parseFloat(containerStyles.paddingBottom) + parseFloat(containerStyles.borderTopWidth) + parseFloat(containerStyles.borderBottomWidth) + "px";
}
}
};
ScrollPanel.prototype.moveBar = function () {
var _this = this;
var container = this.containerViewChild.nativeElement;
var content = this.contentViewChild.nativeElement;
/* horizontal scroll */
var xBar = this.xBarViewChild.nativeElement;
var totalWidth = content.scrollWidth;
var ownWidth = content.clientWidth;
var bottom = (container.clientHeight - xBar.clientHeight) * -1;
this.scrollXRatio = ownWidth / totalWidth;
/* vertical scroll */
var yBar = this.yBarViewChild.nativeElement;
var totalHeight = content.scrollHeight;
var ownHeight = content.clientHeight;
var right = (container.clientWidth - yBar.clientWidth) * -1;
this.scrollYRatio = ownHeight / totalHeight;
this.requestAnimationFrame(function () {
if (_this.scrollXRatio >= 1) {
dom.DomHandler.addClass(xBar, 'ui-scrollpanel-hidden');
}
else {
dom.DomHandler.removeClass(xBar, 'ui-scrollpanel-hidden');
var xBarWidth = Math.max(_this.scrollXRatio * 100, 10);
var xBarLeft = content.scrollLeft * (100 - xBarWidth) / (totalWidth - ownWidth);
xBar.style.cssText = 'width:' + xBarWidth + '%; left:' + xBarLeft + '%;bottom:' + bottom + 'px;';
}
if (_this.scrollYRatio >= 1) {
dom.DomHandler.addClass(yBar, 'ui-scrollpanel-hidden');
}
else {
dom.DomHandler.removeClass(yBar, 'ui-scrollpanel-hidden');
var yBarHeight = Math.max(_this.scrollYRatio * 100, 10);
var yBarTop = content.scrollTop * (100 - yBarHeight) / (totalHeight - ownHeight);
yBar.style.cssText = 'height:' + yBarHeight + '%; top: calc(' + yBarTop + '% - ' + xBar.clientHeight + 'px);right:' + right + 'px;';
}
});
};
ScrollPanel.prototype.onYBarMouseDown = function (e) {
this.isYBarClicked = true;
this.lastPageY = e.pageY;
dom.DomHandler.addClass(this.yBarViewChild.nativeElement, 'ui-scrollpanel-grabbed');
dom.DomHandler.addClass(document.body, 'ui-scrollpanel-grabbed');
document.addEventListener('mousemove', this.onDocumentMouseMove);
document.addEventListener('mouseup', this.onDocumentMouseUp);
e.preventDefault();
};
ScrollPanel.prototype.onXBarMouseDown = function (e) {
this.isXBarClicked = true;
this.lastPageX = e.pageX;
dom.DomHandler.addClass(this.xBarViewChild.nativeElement, 'ui-scrollpanel-grabbed');
dom.DomHandler.addClass(document.body, 'ui-scrollpanel-grabbed');
document.addEventListener('mousemove', this.onDocumentMouseMove);
document.addEventListener('mouseup', this.onDocumentMouseUp);
e.preventDefault();
};
ScrollPanel.prototype.onDocumentMouseMove = function (e) {
if (this.isXBarClicked) {
this.onMouseMoveForXBar(e);
}
else if (this.isYBarClicked) {
this.onMouseMoveForYBar(e);
}
else {
this.onMouseMoveForXBar(e);
this.onMouseMoveForYBar(e);
}
};
ScrollPanel.prototype.onMouseMoveForXBar = function (e) {
var _this = this;
var deltaX = e.pageX - this.lastPageX;
this.lastPageX = e.pageX;
this.requestAnimationFrame(function () {
_this.contentViewChild.nativeElement.scrollLeft += deltaX / _this.scrollXRatio;
});
};
ScrollPanel.prototype.onMouseMoveForYBar = function (e) {
var _this = this;
var deltaY = e.pageY - this.lastPageY;
this.lastPageY = e.pageY;
this.requestAnimationFrame(function () {
_this.contentViewChild.nativeElement.scrollTop += deltaY / _this.scrollYRatio;
});
};
ScrollPanel.prototype.scrollTop = function (scrollTop) {
var scrollableHeight = this.contentViewChild.nativeElement.scrollHeight - this.contentViewChild.nativeElement.clientHeight;
scrollTop = scrollTop > scrollableHeight ? scrollableHeight : scrollTop > 0 ? scrollTop : 0;
this.contentViewChild.nativeElement.scrollTop = scrollTop;
};
ScrollPanel.prototype.onDocumentMouseUp = function (e) {
dom.DomHandler.removeClass(this.yBarViewChild.nativeElement, 'ui-scrollpanel-grabbed');
dom.DomHandler.removeClass(this.xBarViewChild.nativeElement, 'ui-scrollpanel-grabbed');
dom.DomHandler.removeClass(document.body, 'ui-scrollpanel-grabbed');
document.removeEventListener('mousemove', this.onDocumentMouseMove);
document.removeEventListener('mouseup', this.onDocumentMouseUp);
this.isXBarClicked = false;
this.isYBarClicked = false;
};
ScrollPanel.prototype.requestAnimationFrame = function (f) {
var frame = window.requestAnimationFrame || this.timeoutFrame;
frame(f);
};
ScrollPanel.prototype.ngOnDestroy = function () {
if (this.initialized) {
window.removeEventListener('resize', this.moveBar);
this.contentViewChild.nativeElement.removeEventListener('scroll', this.moveBar);
this.contentViewChild.nativeElement.removeEventListener('mouseenter', this.moveBar);
this.xBarViewChild.nativeElement.removeEventListener('mousedown', this.onXBarMouseDown);
this.yBarViewChild.nativeElement.removeEventListener('mousedown', this.onYBarMouseDown);
}
};
ScrollPanel.prototype.refresh = function () {
this.moveBar();
};
ScrollPanel.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: core.NgZone }
]; };
__decorate([
core.Input()
], ScrollPanel.prototype, "style", void 0);
__decorate([
core.Input()
], ScrollPanel.prototype, "styleClass", void 0);
__decorate([
core.ViewChild('container')
], ScrollPanel.prototype, "containerViewChild", void 0);
__decorate([
core.ViewChild('content')
], ScrollPanel.prototype, "contentViewChild", void 0);
__decorate([
core.ViewChild('xBar')
], ScrollPanel.prototype, "xBarViewChild", void 0);
__decorate([
core.ViewChild('yBar')
], ScrollPanel.prototype, "yBarViewChild", void 0);
ScrollPanel = __decorate([
core.Component({
selector: 'p-scrollPanel',
template: "\n <div #container [ngClass]=\"'ui-scrollpanel ui-widget ui-widget-content ui-corner-all'\" [ngStyle]=\"style\" [class]=\"styleClass\">\n <div class=\"ui-scrollpanel-wrapper\">\n <div #content class=\"ui-scrollpanel-content\">\n <ng-content></ng-content>\n </div>\n </div>\n <div #xBar class=\"ui-scrollpanel-bar ui-scrollpanel-bar-x\"></div>\n <div #yBar class=\"ui-scrollpanel-bar ui-scrollpanel-bar-y\"></div> \n </div>\n ",
changeDetection: core.ChangeDetectionStrategy.Default
})
], ScrollPanel);
return ScrollPanel;
}());
var ScrollPanelModule = /** @class */ (function () {
function ScrollPanelModule() {
}
ScrollPanelModule = __decorate([
core.NgModule({
imports: [common.CommonModule],
exports: [ScrollPanel],
declarations: [ScrollPanel]
})
], ScrollPanelModule);
return ScrollPanelModule;
}());
exports.ScrollPanel = ScrollPanel;
exports.ScrollPanelModule = ScrollPanelModule;
Object.defineProperty(exports, '__esModule', { value: true });
})));
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