angular2-infinite-scroll
Version:
An infinite scroll directive for angular2
113 lines • 15.4 kB
JavaScript
"use strict";
var core_1 = require('@angular/core');
var axis_resolver_1 = require('./axis-resolver');
var PositionResolverFactory = (function () {
function PositionResolverFactory(axisResolver) {
this.axisResolver = axisResolver;
}
PositionResolverFactory.prototype.create = function (options) {
return new PositionResolver(this.axisResolver.create(!options.horizontal), options);
};
PositionResolverFactory.decorators = [
{ type: core_1.Injectable },
];
/** @nocollapse */
PositionResolverFactory.ctorParameters = function () { return [
{ type: axis_resolver_1.AxisResolverFactory, },
]; };
return PositionResolverFactory;
}());
exports.PositionResolverFactory = PositionResolverFactory;
var PositionResolver = (function () {
function PositionResolver(axis, options) {
this.axis = axis;
this.options = options;
this.resolveContainer(this.options.windowElement);
this.defineContainer(this.options.windowElement);
}
PositionResolver.prototype.defineContainer = function (windowElement) {
if (this.resolveContainer(windowElement) || !windowElement.nativeElement) {
this.container = windowElement;
}
else {
this.container = windowElement.nativeElement;
}
return this.container;
};
PositionResolver.prototype.resolveContainer = function (windowElement) {
var isContainerWindow = Object.prototype.toString.call(windowElement).includes('Window');
this.isContainerWindow = isContainerWindow;
return isContainerWindow;
};
PositionResolver.prototype.getDocumentElement = function () {
return this.isContainerWindow
? this.options.windowElement.document.documentElement
: null;
};
PositionResolver.prototype.calculatePoints = function (element) {
return this.isContainerWindow
? this.calculatePointsForWindow(element)
: this.calculatePointsForElement(element);
};
PositionResolver.prototype.calculatePointsForWindow = function (element) {
// container's height
var height = this.height(this.container);
// scrolled until now / current y point
var scrolledUntilNow = height + this.pageYOffset(this.getDocumentElement());
// total height / most bottom y point
var totalToScroll = this.offsetTop(element.nativeElement) + this.height(element.nativeElement);
return { height: height, scrolledUntilNow: scrolledUntilNow, totalToScroll: totalToScroll };
};
PositionResolver.prototype.calculatePointsForElement = function (element) {
var scrollTop = this.axis.scrollTopKey();
var scrollHeight = this.axis.scrollHeightKey();
var container = this.container;
var height = this.height(container);
// perhaps use this.container.offsetTop instead of 'scrollTop'
var scrolledUntilNow = container[scrollTop];
var containerTopOffset = 0;
var offsetTop = this.offsetTop(container);
if (offsetTop !== void 0) {
containerTopOffset = offsetTop;
}
var totalToScroll = container[scrollHeight];
return { height: height, scrolledUntilNow: scrolledUntilNow, totalToScroll: totalToScroll };
};
PositionResolver.prototype.height = function (elem) {
var offsetHeight = this.axis.offsetHeightKey();
var clientHeight = this.axis.clientHeightKey();
// elem = elem.nativeElement;
if (isNaN(elem[offsetHeight])) {
return this.getDocumentElement()[clientHeight];
}
else {
return elem[offsetHeight];
}
};
PositionResolver.prototype.offsetTop = function (elem) {
var top = this.axis.topKey();
// elem = elem.nativeElement;
if (!elem.getBoundingClientRect) {
return;
}
return elem.getBoundingClientRect()[top] + this.pageYOffset(elem);
};
PositionResolver.prototype.pageYOffset = function (elem) {
var pageYOffset = this.axis.pageYOffsetKey();
var scrollTop = this.axis.scrollTopKey();
var offsetTop = this.axis.offsetTopKey();
// elem = elem.nativeElement;
if (isNaN(window[pageYOffset])) {
return this.getDocumentElement()[scrollTop];
}
else if (elem.ownerDocument) {
return elem.ownerDocument.defaultView[pageYOffset];
}
else {
return elem[offsetTop];
}
};
return PositionResolver;
}());
exports.PositionResolver = PositionResolver;
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"position-resolver.js","sourceRoot":"","sources":["position-resolver.ts"],"names":[],"mappings":";AAAA,qBAAuC,eAAe,CAAC,CAAA;AACvD,8BAAkD,iBAAiB,CAAC,CAAA;AAIpE;IAEE,iCAAoB,YAAiC;QAAjC,iBAAY,GAAZ,YAAY,CAAqB;IACrD,CAAC;IAED,wCAAM,GAAN,UAAQ,OAAyB;QAC/B,MAAM,CAAC,IAAI,gBAAgB,CAAC,IAAI,CAAC,YAAY,CAAC,MAAM,CAAC,CAAC,OAAO,CAAC,UAAU,CAAC,EAAE,OAAO,CAAC,CAAC;IACtF,CAAC;IACI,kCAAU,GAA0B;QAC3C,EAAE,IAAI,EAAE,iBAAU,EAAE;KACnB,CAAC;IACF,kBAAkB;IACX,sCAAc,GAAmE,cAAM,OAAA;QAC9F,EAAC,IAAI,EAAE,mCAAmB,GAAG;KAC5B,EAF6F,CAE7F,CAAC;IACF,8BAAC;AAAD,CAAC,AAfD,IAeC;AAfY,+BAAuB,0BAenC,CAAA;AAED;IAKE,0BAAqB,IAAkB,EAAU,OAAyB;QAArD,SAAI,GAAJ,IAAI,CAAc;QAAU,YAAO,GAAP,OAAO,CAAkB;QACxE,IAAI,CAAC,gBAAgB,CAAC,IAAI,CAAC,OAAO,CAAC,aAAa,CAAC,CAAC;QAClD,IAAI,CAAC,eAAe,CAAC,IAAI,CAAC,OAAO,CAAC,aAAa,CAAC,CAAC;IACnD,CAAC;IAED,0CAAe,GAAf,UAAgB,aAA2B;QACzC,EAAE,CAAC,CAAC,IAAI,CAAC,gBAAgB,CAAC,aAAa,CAAC,IAAI,CAAC,aAAa,CAAC,aAAa,CAAC,CAAC,CAAC;YACzE,IAAI,CAAC,SAAS,GAAG,aAAa,CAAC;QACjC,CAAC;QAAC,IAAI,CAAC,CAAC;YACN,IAAI,CAAC,SAAS,GAAG,aAAa,CAAC,aAAa,CAAC;QAC/C,CAAC;QACD,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC;IACxB,CAAC;IAED,2CAAgB,GAAhB,UAAiB,aAA2B;QAC1C,IAAM,iBAAiB,GAAG,MAAM,CAAC,SAAS,CAAC,QAAQ,CAAC,IAAI,CAAC,aAAa,CAAC,CAAC,QAAQ,CAAC,QAAQ,CAAC,CAAC;QAC3F,IAAI,CAAC,iBAAiB,GAAG,iBAAiB,CAAC;QAC3C,MAAM,CAAC,iBAAiB,CAAC;IAC3B,CAAC;IAED,6CAAkB,GAAlB;QACE,MAAM,CAAC,IAAI,CAAC,iBAAiB;cACzB,IAAI,CAAC,OAAO,CAAC,aAAa,CAAC,QAAQ,CAAC,eAAe;cACnD,IAAI,CAAC;IACX,CAAC;IAED,0CAAe,GAAf,UAAiB,OAAmB;QAClC,MAAM,CAAC,IAAI,CAAC,iBAAiB;cACzB,IAAI,CAAC,wBAAwB,CAAC,OAAO,CAAC;cACtC,IAAI,CAAC,yBAAyB,CAAC,OAAO,CAAC,CAAC;IAC9C,CAAC;IAED,mDAAwB,GAAxB,UAA0B,OAAmB;QAC3C,qBAAqB;QACrB,IAAM,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;QAC3C,uCAAuC;QACvC,IAAM,gBAAgB,GAAG,MAAM,GAAG,IAAI,CAAC,WAAW,CAAC,IAAI,CAAC,kBAAkB,EAAE,CAAC,CAAC;QAC9E,qCAAqC;QACrC,IAAM,aAAa,GAAG,IAAI,CAAC,SAAS,CAAC,OAAO,CAAC,aAAa,CAAC,GAAG,IAAI,CAAC,MAAM,CAAC,OAAO,CAAC,aAAa,CAAC,CAAC;QACjG,MAAM,CAAC,EAAE,cAAM,EAAE,kCAAgB,EAAE,4BAAa,EAAE,CAAC;IACrD,CAAC;IAED,oDAAyB,GAAzB,UAA2B,OAAmB;QAC5C,IAAI,SAAS,GAAM,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,CAAC;QAC5C,IAAI,YAAY,GAAG,IAAI,CAAC,IAAI,CAAC,eAAe,EAAE,CAAC;QAC/C,IAAM,SAAS,GAAG,IAAI,CAAC,SAAS,CAAC;QAEjC,IAAM,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,SAAS,CAAC,CAAC;QACtC,8DAA8D;QAC9D,IAAM,gBAAgB,GAAG,SAAS,CAAC,SAAS,CAAC,CAAC;QAC9C,IAAI,kBAAkB,GAAG,CAAC,CAAC;QAC3B,IAAM,SAAS,GAAG,IAAI,CAAC,SAAS,CAAC,SAAS,CAAC,CAAC;QAC5C,EAAE,CAAC,CAAC,SAAS,KAAK,KAAK,CAAC,CAAC,CAAC,CAAC;YACzB,kBAAkB,GAAG,SAAS,CAAC;QACjC,CAAC;QACD,IAAM,aAAa,GAAG,SAAS,CAAC,YAAY,CAAC,CAAC;QAC9C,MAAM,CAAC,EAAE,cAAM,EAAE,kCAAgB,EAAE,4BAAa,EAAE,CAAC;IACrD,CAAC;IAEO,iCAAM,GAAd,UAAgB,IAAS;QACvB,IAAI,YAAY,GAAG,IAAI,CAAC,IAAI,CAAC,eAAe,EAAE,CAAC;QAC/C,IAAI,YAAY,GAAG,IAAI,CAAC,IAAI,CAAC,eAAe,EAAE,CAAC;QAE/C,6BAA6B;QAC7B,EAAE,CAAC,CAAC,KAAK,CAAC,IAAI,CAAC,YAAY,CAAC,CAAC,CAAC,CAAC,CAAC;YAC9B,MAAM,CAAC,IAAI,CAAC,kBAAkB,EAAE,CAAC,YAAY,CAAC,CAAC;QACjD,CAAC;QAAC,IAAI,CAAC,CAAC;YACN,MAAM,CAAC,IAAI,CAAC,YAAY,CAAC,CAAC;QAC5B,CAAC;IACH,CAAC;IAEO,oCAAS,GAAjB,UAAmB,IAAS;QAC1B,IAAI,GAAG,GAAG,IAAI,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC;QAE7B,6BAA6B;QAC7B,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,qBAAqB,CAAC,CAAC,CAAC;YAChC,MAAM,CAAC;QACT,CAAC;QACD,MAAM,CAAC,IAAI,CAAC,qBAAqB,EAAE,CAAC,GAAG,CAAC,GAAG,IAAI,CAAC,WAAW,CAAC,IAAI,CAAC,CAAC;IACpE,CAAC;IAED,sCAAW,GAAX,UAAa,IAAS;QACpB,IAAI,WAAW,GAAG,IAAI,CAAC,IAAI,CAAC,cAAc,EAAE,CAAC;QAC7C,IAAI,SAAS,GAAK,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,CAAC;QAC3C,IAAI,SAAS,GAAK,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,CAAC;QAE3C,6BAA6B;QAC7B,EAAE,CAAC,CAAC,KAAK,CAAC,MAAM,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC;YAC/B,MAAM,CAAC,IAAI,CAAC,kBAAkB,EAAE,CAAC,SAAS,CAAC,CAAC;QAC9C,CAAC;QAAC,IAAI,CAAC,EAAE,CAAC,CAAC,IAAI,CAAC,aAAa,CAAC,CAAC,CAAC;YAC9B,MAAM,CAAC,IAAI,CAAC,aAAa,CAAC,WAAW,CAAC,WAAW,CAAC,CAAC;QACrD,CAAC;QAAC,IAAI,CAAC,CAAC;YACN,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;QACzB,CAAC;IACH,CAAC;IACH,uBAAC;AAAD,CAAC,AApGD,IAoGC;AApGY,wBAAgB,mBAoG5B,CAAA","sourcesContent":["import { Injectable, ElementRef } from '@angular/core';\nimport { AxisResolver, AxisResolverFactory } from './axis-resolver';\nimport { ContainerRef, PositionElements, PositionStats } from './models';\n\n\nexport class PositionResolverFactory {\n\n  constructor(private axisResolver: AxisResolverFactory) {\n  }\n\n  create (options: PositionElements) {\n    return new PositionResolver(this.axisResolver.create(!options.horizontal), options);\n  }\nstatic decorators: DecoratorInvocation[] = [\n{ type: Injectable },\n];\n/** @nocollapse */\nstatic ctorParameters: () => ({type: any, decorators?: DecoratorInvocation[]}|null)[] = () => [\n{type: AxisResolverFactory, },\n];\n}\n\nexport class PositionResolver {\n  private documentElement: ContainerRef;\n  private isContainerWindow: boolean;\n  public container: ContainerRef;\n\n  constructor (private axis: AxisResolver, private options: PositionElements) {\n    this.resolveContainer(this.options.windowElement);\n    this.defineContainer(this.options.windowElement);\n  }\n\n  defineContainer(windowElement: ContainerRef) {\n    if (this.resolveContainer(windowElement) || !windowElement.nativeElement) {\n      this.container = windowElement;\n    } else {\n      this.container = windowElement.nativeElement;\n    }\n    return this.container;\n  }\n\n  resolveContainer(windowElement: ContainerRef): boolean {\n    const isContainerWindow = Object.prototype.toString.call(windowElement).includes('Window');\n    this.isContainerWindow = isContainerWindow;\n    return isContainerWindow;\n  }\n\n  getDocumentElement() {\n    return this.isContainerWindow\n      ? this.options.windowElement.document.documentElement\n      : null;\n  }\n\n  calculatePoints (element: ElementRef) {\n    return this.isContainerWindow\n      ? this.calculatePointsForWindow(element)\n      : this.calculatePointsForElement(element);\n  }\n\n  calculatePointsForWindow (element: ElementRef): PositionStats {\n    // container's height\n    const height = this.height(this.container);\n    // scrolled until now / current y point\n    const scrolledUntilNow = height + this.pageYOffset(this.getDocumentElement());\n    // total height / most bottom y point\n    const totalToScroll = this.offsetTop(element.nativeElement) + this.height(element.nativeElement);\n    return { height, scrolledUntilNow, totalToScroll };\n  }\n\n  calculatePointsForElement (element: ElementRef) {\n    let scrollTop    = this.axis.scrollTopKey();\n    let scrollHeight = this.axis.scrollHeightKey();\n    const container = this.container;\n\n    const height = this.height(container);\n    // perhaps use this.container.offsetTop instead of 'scrollTop'\n    const scrolledUntilNow = container[scrollTop];\n    let containerTopOffset = 0;\n    const offsetTop = this.offsetTop(container);\n    if (offsetTop !== void 0) {\n      containerTopOffset = offsetTop;\n    }\n    const totalToScroll = container[scrollHeight];\n    return { height, scrolledUntilNow, totalToScroll };\n  }\n\n  private height (elem: any) {\n    let offsetHeight = this.axis.offsetHeightKey();\n    let clientHeight = this.axis.clientHeightKey();\n\n    // elem = elem.nativeElement;\n    if (isNaN(elem[offsetHeight])) {\n      return this.getDocumentElement()[clientHeight];\n    } else {\n      return elem[offsetHeight];\n    }\n  }\n\n  private offsetTop (elem: any) {\n    let top = this.axis.topKey();\n\n    // elem = elem.nativeElement;\n    if (!elem.getBoundingClientRect) { // || elem.css('none')) {\n      return;\n    }\n    return elem.getBoundingClientRect()[top] + this.pageYOffset(elem);\n  }\n\n  pageYOffset (elem: any) {\n    let pageYOffset = this.axis.pageYOffsetKey();\n    let scrollTop   = this.axis.scrollTopKey();\n    let offsetTop   = this.axis.offsetTopKey();\n\n    // elem = elem.nativeElement;\n    if (isNaN(window[pageYOffset])) {\n      return this.getDocumentElement()[scrollTop];\n    } else if (elem.ownerDocument) {\n      return elem.ownerDocument.defaultView[pageYOffset];\n    } else {\n      return elem[offsetTop];\n    }\n  }\n}\n\ninterface DecoratorInvocation {\n  type: Function;\n  args?: any[];\n}\n"]}