@offensichtbar-codestock/ngx-flex-masonry-grid
Version:
Angular Module for displaying items in a flex-based masonry layout without any third party dependencies
764 lines (749 loc) • 36 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/animations'), require('rxjs'), require('rxjs/operators'), require('@angular/platform-browser/animations')) :
typeof define === 'function' && define.amd ? define('@offensichtbar-codestock/ngx-flex-masonry-grid', ['exports', '@angular/core', '@angular/animations', 'rxjs', 'rxjs/operators', '@angular/platform-browser/animations'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global['offensichtbar-codestock'] = global['offensichtbar-codestock'] || {}, global['offensichtbar-codestock']['ngx-flex-masonry-grid'] = {}), global.ng.core, global.ng.animations, global.rxjs, global.rxjs.operators, global.ng.platformBrowser.animations));
}(this, (function (exports, i0, animations, rxjs, operators, animations$1) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
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var NgxFlexMasonryGridService = /** @class */ (function () {
function NgxFlexMasonryGridService() {
this._imageobserved = new rxjs.Subject();
this.imageobserved = this._imageobserved.asObservable();
this._layoutshouldbeupdated = new rxjs.Subject();
this.layoutshouldbeupdated = this._layoutshouldbeupdated.asObservable();
this._itemremoved = new rxjs.Subject();
this.itemremoved = this._itemremoved.asObservable();
this._allitemsloaded = new rxjs.Subject();
this.allitemsloaded = this._allitemsloaded.asObservable();
this._loaded_items = [];
}
Object.defineProperty(NgxFlexMasonryGridService.prototype, "loadeditems", {
get: function () {
return this._loaded_items;
},
enumerable: false,
configurable: true
});
NgxFlexMasonryGridService.prototype.observeimage = function (values) {
var itemwithmaxheight = values.reduce(function (max, obj) { return (max.height > obj.height) ? max : obj; });
this._imageobserved.next(itemwithmaxheight);
};
NgxFlexMasonryGridService.prototype.addItem = function (item, countallitems) {
this._loaded_items = __spread(this._loaded_items, [item]);
this._layoutshouldbeupdated.next(item);
if (this._loaded_items.length === countallitems) {
this._allitemsloaded.next();
}
};
NgxFlexMasonryGridService.prototype.removeItem = function (item) {
var index = this._loaded_items.findIndex(function (griditem) { return Object.is(griditem, item); });
this._itemremoved.next(this._loaded_items[index]);
this._loaded_items = __spread(this._loaded_items.slice(0, index), this._loaded_items.slice(index + 1, this._loaded_items.length));
};
NgxFlexMasonryGridService.prototype.clearStack = function () {
this._loaded_items = [];
};
return NgxFlexMasonryGridService;
}());
NgxFlexMasonryGridService.ɵprov = i0.ɵɵdefineInjectable({ factory: function NgxFlexMasonryGridService_Factory() { return new NgxFlexMasonryGridService(); }, token: NgxFlexMasonryGridService, providedIn: "root" });
NgxFlexMasonryGridService.decorators = [
{ type: i0.Injectable, args: [{
providedIn: 'root'
},] }
];
NgxFlexMasonryGridService.ctorParameters = function () { return []; };
var CIRCULAR_IMPORT_PARENT = new i0.InjectionToken('CIRCULAR_IMPORT_PARENT');
var timing = '.4s ease-out';
var NgxFMG_ANIMATION = /** @class */ (function () {
function NgxFMG_ANIMATION() {
}
Object.defineProperty(NgxFMG_ANIMATION, "UPDATE_POSITION", {
get: function () {
return animations.animation([
animations.animate(timing, animations.style({ transform: 'translateY({{ animatePosY }})' })),
]);
},
enumerable: false,
configurable: true
});
Object.defineProperty(NgxFMG_ANIMATION, "FADE_IN", {
get: function () {
return animations.animation([
animations.style({ opacity: 0, visibility: 'visible' }),
animations.animate(timing, animations.style({ opacity: 1 })),
]);
},
enumerable: false,
configurable: true
});
Object.defineProperty(NgxFMG_ANIMATION, "TRIGGER_FADE_OUT", {
get: function () {
return animations.trigger('TRIGGER_FADE_OUT', [
animations.state(':leave', animations.style({ opacity: 1 })),
animations.transition('* => void', animations.animate(timing, animations.style({ opacity: 0 })))
]);
},
enumerable: false,
configurable: true
});
return NgxFMG_ANIMATION;
}());
var NgxFlexMasonryGridItemComponent = /** @class */ (function () {
function NgxFlexMasonryGridItemComponent(element, builder, service, parent) {
this.element = element;
this.builder = builder;
this.service = service;
this.parent = parent;
this.heightprops = 'max-content';
this._translateY = 0;
this._isready = false;
this._remove = false;
}
Object.defineProperty(NgxFlexMasonryGridItemComponent.prototype, "getLeaveDrawer", {
get: function () {
return this._remove;
},
enumerable: false,
configurable: true
});
NgxFlexMasonryGridItemComponent.prototype.animationIsDone = function () {
if (this._remove)
this.service.removeItem(this);
};
Object.defineProperty(NgxFlexMasonryGridItemComponent.prototype, "height", {
get: function () {
return this.element.nativeElement.offsetHeight;
},
enumerable: false,
configurable: true
});
Object.defineProperty(NgxFlexMasonryGridItemComponent.prototype, "isready", {
get: function () {
return this._isready;
},
set: function (ready) {
this._isready = ready;
},
enumerable: false,
configurable: true
});
Object.defineProperty(NgxFlexMasonryGridItemComponent.prototype, "width", {
get: function () {
var marginLeft = window
.getComputedStyle(this.element.nativeElement, null)
.getPropertyValue('margin-left')
.match(/\d+/);
var marginRight = window
.getComputedStyle(this.element.nativeElement, null)
.getPropertyValue('margin-right')
.match(/\d+/);
return this.element.nativeElement.offsetWidth + (parseInt(marginLeft[0]) + parseInt(marginRight[0]));
},
enumerable: false,
configurable: true
});
Object.defineProperty(NgxFlexMasonryGridItemComponent.prototype, "translateY", {
get: function () {
return this._translateY;
},
set: function (value) {
if (this._isready) {
this.upDatePosition(value);
}
else {
this.element.nativeElement.style.transform = "translateY(-" + value + "px)";
}
this._translateY = value;
},
enumerable: false,
configurable: true
});
NgxFlexMasonryGridItemComponent.prototype.ngOnInit = function () { };
NgxFlexMasonryGridItemComponent.prototype.upDatePosition = function (to) {
var params = { animatePosY: "-" + to + "px" };
var metadata = animations.useAnimation(NgxFMG_ANIMATION.UPDATE_POSITION, { params: params });
var player = this.builder.build(metadata).create(this.element.nativeElement);
player.play();
};
NgxFlexMasonryGridItemComponent.prototype.playAnimation = function () {
var metadata = NgxFMG_ANIMATION.FADE_IN;
this.element.nativeElement.style.visibility = 'visible';
var player = this.builder.build(metadata).create(this.element.nativeElement);
player.play();
};
NgxFlexMasonryGridItemComponent.prototype.ngAfterViewInit = function () {
this.translateY = 0;
this.startLoading();
};
NgxFlexMasonryGridItemComponent.prototype.startLoading = function () {
var _this = this;
var images = this.element.nativeElement.querySelectorAll('img');
this.images = new Set(images);
var loaded = [];
if (images.length == 0) {
setTimeout(function () {
_this.service.observeimage(__spread(loaded, [{
item: _this,
height: _this.element.nativeElement.offsetHeight
}]));
});
return;
}
Array.from(this.images).forEach(function (image) {
_this.loadImage(image.src).then(function (props) {
var _a;
loaded = _this.checkActionLoaded(loaded, images, props);
(_a = _this.images) === null || _a === void 0 ? void 0 : _a.delete(image);
}).catch(function (error) {
var _a;
loaded = _this.checkActionLoaded(loaded, images);
(_a = _this.images) === null || _a === void 0 ? void 0 : _a.delete(image);
});
});
};
NgxFlexMasonryGridItemComponent.prototype.checkActionLoaded = function (loaded, images, props) {
loaded = __spread(loaded, [(props) ? props : {
item: this,
height: this.element.nativeElement.offsetHeight
}]);
if (loaded.length === images.length) {
this.service.observeimage(loaded);
}
return loaded;
};
NgxFlexMasonryGridItemComponent.prototype.loadImage = function (src) {
var _this = this;
return new Promise(function (resolve, reject) {
var img = new Image();
img.onload = function () { return resolve({
item: _this,
height: _this.element.nativeElement.offsetHeight
}); };
img.onerror = reject;
img.src = src;
});
};
NgxFlexMasonryGridItemComponent.prototype.ngOnDestroy = function () {
this._remove = true;
};
return NgxFlexMasonryGridItemComponent;
}());
NgxFlexMasonryGridItemComponent.decorators = [
{ type: i0.Component, args: [{
selector: 'osb-ngx-flexmasonry-grid-item',
template: '<ng-content></ng-content> ',
animations: [
NgxFMG_ANIMATION.TRIGGER_FADE_OUT
]
},] }
];
NgxFlexMasonryGridItemComponent.ctorParameters = function () { return [
{ type: i0.ElementRef },
{ type: animations.AnimationBuilder },
{ type: NgxFlexMasonryGridService },
{ type: undefined, decorators: [{ type: i0.Inject, args: [CIRCULAR_IMPORT_PARENT,] }] }
]; };
NgxFlexMasonryGridItemComponent.propDecorators = {
heightprops: [{ type: i0.HostBinding, args: ['style.height',] }],
getLeaveDrawer: [{ type: i0.HostBinding, args: ['@TRIGGER_FADE_OUT',] }],
animationIsDone: [{ type: i0.HostListener, args: ['@TRIGGER_FADE_OUT.done',] }]
};
var NgxFlexMasonryGridComponent = /** @class */ (function () {
function NgxFlexMasonryGridComponent(_element, service) {
var _this = this;
this._element = _element;
this.service = service;
// Outputs
this.layoutComplete = new i0.EventEmitter();
this.itemRemoved = new i0.EventEmitter();
this.itemLoaded = new i0.EventEmitter();
this.itemsLoaded = new i0.EventEmitter();
this._timeoutID = 0;
this._cols = 0;
this._rows = 0;
this._item_heights = [];
this._row_heights = [];
this.isAlive = true;
this.service.layoutshouldbeupdated.pipe(operators.takeWhile(function () { return _this.isAlive; })).subscribe(function (item) {
_this.itemLoaded.emit(item);
item.playAnimation();
item.isready = true;
_this.layout();
});
this.service.imageobserved.pipe(operators.takeWhile(function () { return _this.isAlive; })).subscribe(function (param) {
_this.add(param);
});
this.service.itemremoved.pipe(operators.takeWhile(function () { return _this.isAlive; })).subscribe(function (item) {
_this.itemRemoved.emit(item);
_this.layout();
});
this.service.allitemsloaded.pipe(operators.takeWhile(function () { return _this.isAlive; })).subscribe(function () {
_this.itemsLoaded.emit(_this.items.length);
_this.layout();
});
}
NgxFlexMasonryGridComponent.prototype.onResize = function (event) {
var _this = this;
clearTimeout(this._timeoutID);
this._timeoutID = setTimeout(function () {
_this.layout();
}, 40);
};
NgxFlexMasonryGridComponent.prototype.ngOnInit = function () { };
NgxFlexMasonryGridComponent.prototype.forceUpdateLayout = function () {
var _a, _b;
if (((_a = this.items) === null || _a === void 0 ? void 0 : _a.length) && ((_b = this.items) === null || _b === void 0 ? void 0 : _b.length) !== 0) {
var items = this.items.toArray().filter(function (item) {
return item.isready;
});
if (this.service.loadeditems.length === items.length) {
this.layout();
}
}
};
NgxFlexMasonryGridComponent.prototype.layout = function () {
var _a;
if (!((_a = this.items) === null || _a === void 0 ? void 0 : _a.length))
return;
this._cols = Math.round(this._element.nativeElement.offsetWidth / this.items.toArray()[0].width);
this._rows = Math.ceil(this.items.length / this._cols);
this._item_heights = this.items.map(function (el) { return el.height; });
this._row_heights = this.getRowHeights();
var offsets = this.getElementOffsets();
this.translateElements(offsets);
if (this.service.loadeditems.length === this.items.length) {
this.layoutComplete.emit();
}
};
NgxFlexMasonryGridComponent.prototype.add = function (params) {
this.service.addItem(params.item, this.items.length);
};
NgxFlexMasonryGridComponent.prototype.getRowHeights = function () {
var rowheights = [];
for (var row = 0; row < this._rows; row++) {
var heightgroup = this._item_heights.slice(row * this._cols, (row + 1) * this._cols); // heightgroup caches slice (slice length === cols length) of _el_heights array
var rowHeights = Math.max.apply(Math, __spread(heightgroup));
rowheights.push(rowHeights);
}
return rowheights;
};
NgxFlexMasonryGridComponent.prototype.getElementOffsets = function () {
var _this = this;
var el_heightgap = __spread(Array(this._cols)).map(function (e) { return []; });
this._item_heights.forEach(function (height, index) {
var current_gap = _this._row_heights[Math.floor(index / _this._cols)] - height;
el_heightgap[index % _this._cols].push(current_gap);
});
var el_offsets = __spread(Array(this._cols)).map(function (e) { return []; });
var _loop_1 = function (gap) {
var accumulation = 0; // Cache for accumulated height differences for each col
el_offsets[gap] = el_heightgap[gap].map(function (val) { return accumulation += val; }); // Maps accumulated height difference values to offset array
el_offsets[gap].pop(); // Removes last value, because the last element needs to be translated by the value of its predecessor
el_offsets[gap].unshift(0); // Adds zero offsets for first item per col, because first item doesn't need to be translated
};
/**
* Accumulates element offsets (final translation values) from el_heightgap array
* Resets translation for first row by unshifting value zero to each subarray
*/
for (var gap = 0; gap < el_heightgap.length; gap++) {
_loop_1(gap);
}
var elementoffsets = [];
for (var i = 0; i < this.items.length; i++) {
var iterator = i % el_offsets.length;
var counter = Math.floor(i / el_offsets.length);
elementoffsets.push(el_offsets[iterator][counter]);
}
this.setContainerHeight();
return elementoffsets;
};
NgxFlexMasonryGridComponent.prototype.setContainerHeight = function () {
var _a;
if (this.items.length <= 0)
return;
var containerHeight = [];
for (var col = 0; col < this._cols; col++) {
containerHeight.push([0]);
var i = 0;
while (col + this._cols * i < this.items.length) {
var currVal = containerHeight[col % this._cols];
var newVal = (_a = this.items.toArray()[col + i * this._cols]) === null || _a === void 0 ? void 0 : _a.height;
containerHeight[col % this._cols] = parseInt(currVal) + newVal;
i++;
}
}
this._element.nativeElement.style.height = Math.max.apply(Math, __spread(containerHeight)) + "px";
};
NgxFlexMasonryGridComponent.prototype.translateElements = function (heights) {
this.items.forEach(function (child, index) {
child.translateY = heights[index];
});
};
NgxFlexMasonryGridComponent.prototype.ngAfterContentInit = function () { };
NgxFlexMasonryGridComponent.prototype.ngOnDestroy = function () {
this.isAlive = false;
this.service.clearStack();
};
return NgxFlexMasonryGridComponent;
}());
NgxFlexMasonryGridComponent.decorators = [
{ type: i0.Component, args: [{
selector: 'osb-ngx-flexmasonry-grid',
template: '<ng-content></ng-content> ',
providers: [
NgxFlexMasonryGridService,
{
provide: CIRCULAR_IMPORT_PARENT,
useExisting: NgxFlexMasonryGridComponent
}
],
styles: ["\n \n\n :host::ng-deep > * { \n visibility: hidden;\n box-sizing: border-box;\n backface-visibility:hidden;\n }\n "]
},] }
];
NgxFlexMasonryGridComponent.ctorParameters = function () { return [
{ type: i0.ElementRef },
{ type: NgxFlexMasonryGridService }
]; };
NgxFlexMasonryGridComponent.propDecorators = {
layoutComplete: [{ type: i0.Output }],
itemRemoved: [{ type: i0.Output }],
itemLoaded: [{ type: i0.Output }],
itemsLoaded: [{ type: i0.Output }],
items: [{ type: i0.ContentChildren, args: [NgxFlexMasonryGridItemComponent,] }],
onResize: [{ type: i0.HostListener, args: ['window:resize', ['$event'],] }]
};
var NgxFlexMasonryGridModule = /** @class */ (function () {
function NgxFlexMasonryGridModule() {
}
return NgxFlexMasonryGridModule;
}());
NgxFlexMasonryGridModule.decorators = [
{ type: i0.NgModule, args: [{
declarations: [NgxFlexMasonryGridComponent, NgxFlexMasonryGridItemComponent],
imports: [
animations$1.BrowserAnimationsModule
],
providers: [
NgxFlexMasonryGridService
],
exports: [NgxFlexMasonryGridComponent, NgxFlexMasonryGridItemComponent]
},] }
];
/*
* Public API Surface of ngx-flex-masonry-grid
*/
/**
* Generated bundle index. Do not edit.
*/
exports.NgxFlexMasonryGridComponent = NgxFlexMasonryGridComponent;
exports.NgxFlexMasonryGridItemComponent = NgxFlexMasonryGridItemComponent;
exports.NgxFlexMasonryGridModule = NgxFlexMasonryGridModule;
exports.NgxFlexMasonryGridService = NgxFlexMasonryGridService;
exports.ɵb = CIRCULAR_IMPORT_PARENT;
Object.defineProperty(exports, '__esModule', { value: true });
})));
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