ionic-image-loader-v5
Version:
ionic-image-loader to Ionic 5
1,215 lines (1,187 loc) • 105 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/common/http'), require('@angular/core'), require('@ionic-native/file/ngx'), require('@ionic-native/ionic-webview/ngx'), require('@ionic/angular'), require('rxjs'), require('rxjs/operators'), require('@ionic-native/file/ngx/index'), require('@ionic-native/ionic-webview/ngx/index'), require('@angular/common')) :
typeof define === 'function' && define.amd ? define('ionic-image-loader-v5', ['exports', '@angular/common/http', '@angular/core', '@ionic-native/file/ngx', '@ionic-native/ionic-webview/ngx', '@ionic/angular', 'rxjs', 'rxjs/operators', '@ionic-native/file/ngx/index', '@ionic-native/ionic-webview/ngx/index', '@angular/common'], factory) :
(global = global || self, factory(global['ionic-image-loader-v5'] = {}, global.ng.common.http, global.ng.core, global.ngx, global.ngx$1, global.angular, global.rxjs, global.rxjs.operators, global.index, global.index$1, global.ng.common));
}(this, (function (exports, http, core, ngx, ngx$1, angular, rxjs, operators, index, index$1, common) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
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/**
* @fileoverview added by tsickle
* Generated from: lib/services/image-loader-config.service.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
var ImageLoaderConfigService = /** @class */ (function () {
function ImageLoaderConfigService() {
this.debugMode = false;
this.spinnerEnabled = true;
this.fallbackAsPlaceholder = false;
this.backgroundSize = 'contain';
this.backgroundRepeat = 'no-repeat';
this.display = 'block';
this.width = '100%';
this.height = '100%';
this.useImg = false;
this.concurrency = 5;
this.maxCacheSize = -1;
this.maxCacheAge = -1;
this.imageReturnType = 'uri';
// Must be default 'true' for the new WebView to show images
this.fileNameCachedWithExtension = true;
this.fallbackFileNameCachedExtension = '.jpg';
this.cacheDirectoryType = 'cache';
this._cacheDirectoryName = 'image-loader-cache';
}
Object.defineProperty(ImageLoaderConfigService.prototype, "cacheDirectoryName", {
get: /**
* @return {?}
*/
function () {
return this._cacheDirectoryName;
},
set: /**
* @param {?} name
* @return {?}
*/
function (name) {
name.replace(/\W/g, '');
this._cacheDirectoryName = name;
},
enumerable: true,
configurable: true
});
/**
* Enables debug mode to receive console logs, errors, warnings
*/
/**
* Enables debug mode to receive console logs, errors, warnings
* @return {?}
*/
ImageLoaderConfigService.prototype.enableDebugMode = /**
* Enables debug mode to receive console logs, errors, warnings
* @return {?}
*/
function () {
this.debugMode = true;
};
/**
* Enable/Disable the spinner by default. Defaults to true.
* @param enable set to true to enable
*/
/**
* Enable/Disable the spinner by default. Defaults to true.
* @param {?} enable set to true to enable
* @return {?}
*/
ImageLoaderConfigService.prototype.enableSpinner = /**
* Enable/Disable the spinner by default. Defaults to true.
* @param {?} enable set to true to enable
* @return {?}
*/
function (enable) {
this.spinnerEnabled = enable;
};
/**
* Enable/Disable the fallback image as placeholder instead of the spinner. Defaults to false.
* @param enable set to true to enable
*/
/**
* Enable/Disable the fallback image as placeholder instead of the spinner. Defaults to false.
* @param {?} enable set to true to enable
* @return {?}
*/
ImageLoaderConfigService.prototype.enableFallbackAsPlaceholder = /**
* Enable/Disable the fallback image as placeholder instead of the spinner. Defaults to false.
* @param {?} enable set to true to enable
* @return {?}
*/
function (enable) {
this.fallbackAsPlaceholder = enable;
};
/**
* Sets the cache directory name. Defaults to 'image-loader-cache'
* @param name name of directory
*/
/**
* Sets the cache directory name. Defaults to 'image-loader-cache'
* @param {?} name name of directory
* @return {?}
*/
ImageLoaderConfigService.prototype.setCacheDirectoryName = /**
* Sets the cache directory name. Defaults to 'image-loader-cache'
* @param {?} name name of directory
* @return {?}
*/
function (name) {
this.cacheDirectoryName = name;
};
/**
* Set default height for images that are not using <img> tag
* @param height height
*/
/**
* Set default height for images that are not using <img> tag
* @param {?} height height
* @return {?}
*/
ImageLoaderConfigService.prototype.setHeight = /**
* Set default height for images that are not using <img> tag
* @param {?} height height
* @return {?}
*/
function (height) {
this.height = height;
};
/**
* Set default width for images that are not using <img> tag
* @param width Width
*/
/**
* Set default width for images that are not using <img> tag
* @param {?} width Width
* @return {?}
*/
ImageLoaderConfigService.prototype.setWidth = /**
* Set default width for images that are not using <img> tag
* @param {?} width Width
* @return {?}
*/
function (width) {
this.width = width;
};
/**
* Enable display mode for images that are not using <img> tag
* @param display Display mode
*/
/**
* Enable display mode for images that are not using <img> tag
* @param {?} display Display mode
* @return {?}
*/
ImageLoaderConfigService.prototype.setDisplay = /**
* Enable display mode for images that are not using <img> tag
* @param {?} display Display mode
* @return {?}
*/
function (display) {
this.display = display;
};
/**
* Use <img> tag by default
* @param use set to true to use <img> tag by default
*/
/**
* Use <img> tag by default
* @param {?} use set to true to use <img> tag by default
* @return {?}
*/
ImageLoaderConfigService.prototype.useImageTag = /**
* Use <img> tag by default
* @param {?} use set to true to use <img> tag by default
* @return {?}
*/
function (use) {
this.useImg = use;
};
/**
* Set default background size for images that are not using <img> tag
* @param backgroundSize Background size
*/
/**
* Set default background size for images that are not using <img> tag
* @param {?} backgroundSize Background size
* @return {?}
*/
ImageLoaderConfigService.prototype.setBackgroundSize = /**
* Set default background size for images that are not using <img> tag
* @param {?} backgroundSize Background size
* @return {?}
*/
function (backgroundSize) {
this.backgroundSize = backgroundSize;
};
/**
* Set background repeat for images that are not using <img> tag
* @param backgroundRepeat Background repeat
*/
/**
* Set background repeat for images that are not using <img> tag
* @param {?} backgroundRepeat Background repeat
* @return {?}
*/
ImageLoaderConfigService.prototype.setBackgroundRepeat = /**
* Set background repeat for images that are not using <img> tag
* @param {?} backgroundRepeat Background repeat
* @return {?}
*/
function (backgroundRepeat) {
this.backgroundRepeat = backgroundRepeat;
};
/**
* Set fallback URL to use when image src is undefined or did not resolve.
* This image will not be cached. This should ideally be a locally saved image.
* @param fallbackUrl The remote or local URL of the image
*/
/**
* Set fallback URL to use when image src is undefined or did not resolve.
* This image will not be cached. This should ideally be a locally saved image.
* @param {?} fallbackUrl The remote or local URL of the image
* @return {?}
*/
ImageLoaderConfigService.prototype.setFallbackUrl = /**
* Set fallback URL to use when image src is undefined or did not resolve.
* This image will not be cached. This should ideally be a locally saved image.
* @param {?} fallbackUrl The remote or local URL of the image
* @return {?}
*/
function (fallbackUrl) {
this.fallbackUrl = fallbackUrl;
};
/**
* Set the maximum number of allowed connections at the same time.
* @param concurrency
*/
/**
* Set the maximum number of allowed connections at the same time.
* @param {?} concurrency
* @return {?}
*/
ImageLoaderConfigService.prototype.setConcurrency = /**
* Set the maximum number of allowed connections at the same time.
* @param {?} concurrency
* @return {?}
*/
function (concurrency) {
this.concurrency = concurrency;
};
/**
* Sets the maximum allowed cache size
* @param cacheSize Cache size in bytes
*/
/**
* Sets the maximum allowed cache size
* @param {?} cacheSize Cache size in bytes
* @return {?}
*/
ImageLoaderConfigService.prototype.setMaximumCacheSize = /**
* Sets the maximum allowed cache size
* @param {?} cacheSize Cache size in bytes
* @return {?}
*/
function (cacheSize) {
this.maxCacheSize = cacheSize;
};
/**
* Sets the maximum allowed cache age
* @param cacheAge Maximum cache age in milliseconds
*/
/**
* Sets the maximum allowed cache age
* @param {?} cacheAge Maximum cache age in milliseconds
* @return {?}
*/
ImageLoaderConfigService.prototype.setMaximumCacheAge = /**
* Sets the maximum allowed cache age
* @param {?} cacheAge Maximum cache age in milliseconds
* @return {?}
*/
function (cacheAge) {
this.maxCacheAge = cacheAge;
};
/**
* Set the return type of cached images
* @param imageReturnType The return type; either 'base64' or 'uri'
*/
/**
* Set the return type of cached images
* @param {?} imageReturnType The return type; either 'base64' or 'uri'
* @return {?}
*/
ImageLoaderConfigService.prototype.setImageReturnType = /**
* Set the return type of cached images
* @param {?} imageReturnType The return type; either 'base64' or 'uri'
* @return {?}
*/
function (imageReturnType) {
this.imageReturnType = imageReturnType;
};
/**
* Set the default spinner name
* @param name
*/
/**
* Set the default spinner name
* @param {?} name
* @return {?}
*/
ImageLoaderConfigService.prototype.setSpinnerName = /**
* Set the default spinner name
* @param {?} name
* @return {?}
*/
function (name) {
this.spinnerName = name;
};
/**
* Set the default spinner color
* @param color
*/
/**
* Set the default spinner color
* @param {?} color
* @return {?}
*/
ImageLoaderConfigService.prototype.setSpinnerColor = /**
* Set the default spinner color
* @param {?} color
* @return {?}
*/
function (color) {
this.spinnerColor = color;
};
/**
* Set headers options for the HttpClient transfers.
* @param headers
*/
/**
* Set headers options for the HttpClient transfers.
* @param {?} headers
* @return {?}
*/
ImageLoaderConfigService.prototype.setHttpHeaders = /**
* Set headers options for the HttpClient transfers.
* @param {?} headers
* @return {?}
*/
function (headers) {
this.httpHeaders = headers;
};
/**
* Set options for the FileTransfer plugin
* @param options
* @deprecated FileTransfer plugin removed.
*/
/**
* Set options for the FileTransfer plugin
* @deprecated FileTransfer plugin removed.
* @param {?} options
* @return {?}
*/
ImageLoaderConfigService.prototype.setFileTransferOptions = /**
* Set options for the FileTransfer plugin
* @deprecated FileTransfer plugin removed.
* @param {?} options
* @return {?}
*/
function (options) {
// do nothing, plugin deprecated.
};
/**
* Enable/Disable the save filename of cached images with extension. Defaults to false.
* @param enable set to true to enable
*/
/**
* Enable/Disable the save filename of cached images with extension. Defaults to false.
* @param {?} enable set to true to enable
* @return {?}
*/
ImageLoaderConfigService.prototype.setFileNameCachedWithExtension = /**
* Enable/Disable the save filename of cached images with extension. Defaults to false.
* @param {?} enable set to true to enable
* @return {?}
*/
function (enable) {
this.fileNameCachedWithExtension = enable;
};
/**
* Set fallback extension filename of cached images. Defaults to '.jpg'.
* @param extension fallback extension (e.x .jpg)
*/
/**
* Set fallback extension filename of cached images. Defaults to '.jpg'.
* @param {?} extension fallback extension (e.x .jpg)
* @return {?}
*/
ImageLoaderConfigService.prototype.setFallbackFileNameCachedExtension = /**
* Set fallback extension filename of cached images. Defaults to '.jpg'.
* @param {?} extension fallback extension (e.x .jpg)
* @return {?}
*/
function (extension) {
this.fallbackFileNameCachedExtension = extension;
};
ImageLoaderConfigService.decorators = [
{ type: core.Injectable, args: [{
providedIn: 'root',
},] }
];
/** @nocollapse */ ImageLoaderConfigService.ngInjectableDef = core.ɵɵdefineInjectable({ factory: function ImageLoaderConfigService_Factory() { return new ImageLoaderConfigService(); }, token: ImageLoaderConfigService, providedIn: "root" });
return ImageLoaderConfigService;
}());
if (false) {
/** @type {?} */
ImageLoaderConfigService.prototype.debugMode;
/** @type {?} */
ImageLoaderConfigService.prototype.spinnerEnabled;
/** @type {?} */
ImageLoaderConfigService.prototype.fallbackAsPlaceholder;
/** @type {?} */
ImageLoaderConfigService.prototype.backgroundSize;
/** @type {?} */
ImageLoaderConfigService.prototype.backgroundRepeat;
/** @type {?} */
ImageLoaderConfigService.prototype.display;
/** @type {?} */
ImageLoaderConfigService.prototype.width;
/** @type {?} */
ImageLoaderConfigService.prototype.height;
/** @type {?} */
ImageLoaderConfigService.prototype.useImg;
/** @type {?} */
ImageLoaderConfigService.prototype.fallbackUrl;
/** @type {?} */
ImageLoaderConfigService.prototype.concurrency;
/** @type {?} */
ImageLoaderConfigService.prototype.maxCacheSize;
/** @type {?} */
ImageLoaderConfigService.prototype.maxCacheAge;
/** @type {?} */
ImageLoaderConfigService.prototype.imageReturnType;
/** @type {?} */
ImageLoaderConfigService.prototype.spinnerName;
/** @type {?} */
ImageLoaderConfigService.prototype.spinnerColor;
/** @type {?} */
ImageLoaderConfigService.prototype.httpHeaders;
/** @type {?} */
ImageLoaderConfigService.prototype.fileNameCachedWithExtension;
/** @type {?} */
ImageLoaderConfigService.prototype.fallbackFileNameCachedExtension;
/** @type {?} */
ImageLoaderConfigService.prototype.cacheDirectoryType;
/**
* @type {?}
* @private
*/
ImageLoaderConfigService.prototype._cacheDirectoryName;
}
/**
* @fileoverview added by tsickle
* Generated from: lib/services/image-loader.service.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @record
*/
function IndexItem() { }
if (false) {
/** @type {?} */
IndexItem.prototype.name;
/** @type {?} */
IndexItem.prototype.modificationTime;
/** @type {?} */
IndexItem.prototype.size;
}
/**
* @record
*/
function QueueItem() { }
if (false) {
/** @type {?} */
QueueItem.prototype.imageUrl;
/** @type {?} */
QueueItem.prototype.resolve;
/** @type {?} */
QueueItem.prototype.reject;
}
/** @type {?} */
var EXTENSIONS = ['jpg', 'png', 'jpeg', 'gif', 'svg', 'tiff'];
var ImageLoaderService = /** @class */ (function () {
function ImageLoaderService(config, file, http, platform, webview) {
var _this = this;
this.config = config;
this.file = file;
this.http = http;
this.platform = platform;
this.webview = webview;
/**
* Indicates if the cache service is ready.
* When the cache service isn't ready, images are loaded via browser instead.
*/
this.isCacheReady = false;
/**
* Indicates if this service is initialized.
* This service is initialized once all the setup is done.
*/
this.isInit = false;
this.initPromise = new Promise((/**
* @param {?} resolve
* @return {?}
*/
function (resolve) { return _this.initPromiseResolve = resolve; }));
this.lockSubject = new rxjs.Subject();
this.lock$ = this.lockSubject.asObservable();
/**
* Number of concurrent requests allowed
*/
this.concurrency = 5;
/**
* Queue items
*/
this.queue = [];
this.processing = 0;
/**
* Fast accessible Object for currently processing items
*/
this.currentlyProcessing = {};
this.cacheIndex = [];
this.currentCacheSize = 0;
this.indexed = false;
this.lockedCallsQueue = [];
if (!platform.is('cordova')) {
// we are running on a browser, or using livereload
// plugin will not function in this case
this.isInit = true;
this.throwWarning('You are running on a browser or using livereload, IonicImageLoader will not function, falling back to browser loading.');
this.initPromiseResolve();
}
else {
rxjs.fromEvent(document, 'deviceready')
.pipe(operators.first())
.subscribe((/**
* @param {?} res
* @return {?}
*/
function (res) {
if (_this.nativeAvailable) {
_this.initCache();
}
else {
// we are running on a browser, or using livereload
// plugin will not function in this case
_this.isInit = true;
_this.initPromiseResolve();
_this.throwWarning('You are running on a browser or using livereload, IonicImageLoader will not function, falling back to browser loading.');
}
}));
}
}
Object.defineProperty(ImageLoaderService.prototype, "nativeAvailable", {
get: /**
* @return {?}
*/
function () {
return ngx.File.installed();
},
enumerable: true,
configurable: true
});
Object.defineProperty(ImageLoaderService.prototype, "isCacheSpaceExceeded", {
get: /**
* @private
* @return {?}
*/
function () {
return (this.config.maxCacheSize > -1 &&
this.currentCacheSize > this.config.maxCacheSize);
},
enumerable: true,
configurable: true
});
Object.defineProperty(ImageLoaderService.prototype, "isWKWebView", {
get: /**
* @private
* @return {?}
*/
function () {
return (this.platform.is('ios') &&
((/** @type {?} */ (window))).webkit &&
((/** @type {?} */ (window))).webkit.messageHandlers);
},
enumerable: true,
configurable: true
});
Object.defineProperty(ImageLoaderService.prototype, "isIonicWKWebView", {
get: /**
* @private
* @return {?}
*/
function () {
return (
// Important: isWKWebview && isIonicWKWebview must be mutually excluse.
// Otherwise the logic for copying to tmp under IOS will fail.
(this.platform.is('android') && this.webview) ||
(this.platform.is('android')) && (location.host === 'localhost:8080') ||
((/** @type {?} */ (window))).LiveReload);
},
enumerable: true,
configurable: true
});
Object.defineProperty(ImageLoaderService.prototype, "isDevServer", {
get: /**
* @private
* @return {?}
*/
function () {
return window['IonicDevServer'] !== undefined;
},
enumerable: true,
configurable: true
});
Object.defineProperty(ImageLoaderService.prototype, "canProcess", {
/**
* Check if we can process more items in the queue
*/
get: /**
* Check if we can process more items in the queue
* @private
* @return {?}
*/
function () {
return this.queue.length > 0 && this.processing < this.concurrency;
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
ImageLoaderService.prototype.ready = /**
* @return {?}
*/
function () {
return this.initPromise;
};
/**
* Preload an image
* @param imageUrl Image URL
* @returns returns a promise that resolves with the cached image URL
*/
/**
* Preload an image
* @param {?} imageUrl Image URL
* @return {?} returns a promise that resolves with the cached image URL
*/
ImageLoaderService.prototype.preload = /**
* Preload an image
* @param {?} imageUrl Image URL
* @return {?} returns a promise that resolves with the cached image URL
*/
function (imageUrl) {
return this.getImagePath(imageUrl);
};
/**
* @return {?}
*/
ImageLoaderService.prototype.getFileCacheDirectory = /**
* @return {?}
*/
function () {
if (this.config.cacheDirectoryType === 'data') {
return this.file.dataDirectory;
}
else if (this.config.cacheDirectoryType === 'external') {
return this.platform.is('android') ? this.file.externalDataDirectory : this.file.documentsDirectory;
}
return this.file.cacheDirectory;
};
/**
* Clears cache of a single image
* @param imageUrl Image URL
*/
/**
* Clears cache of a single image
* @param {?} imageUrl Image URL
* @return {?}
*/
ImageLoaderService.prototype.clearImageCache = /**
* Clears cache of a single image
* @param {?} imageUrl Image URL
* @return {?}
*/
function (imageUrl) {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!this.platform.is('cordova')) {
return [2 /*return*/];
}
return [4 /*yield*/, this.ready()];
case 1:
_a.sent();
this.runLocked((/**
* @return {?}
*/
function () { return __awaiter(_this, void 0, void 0, function () {
var fileName, route, err_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
fileName = this.createFileName(imageUrl);
route = this.getFileCacheDirectory() + this.config.cacheDirectoryName;
// pause any operations
this.isInit = false;
_a.label = 1;
case 1:
_a.trys.push([1, 5, , 6]);
return [4 /*yield*/, this.file.removeFile(route, fileName)];
case 2:
_a.sent();
if (!(this.isWKWebView && !this.isIonicWKWebView)) return [3 /*break*/, 4];
return [4 /*yield*/, this.file.removeFile(this.file.tempDirectory + this.config.cacheDirectoryName, fileName)];
case 3:
_a.sent();
_a.label = 4;
case 4: return [3 /*break*/, 6];
case 5:
err_1 = _a.sent();
this.throwError(err_1);
return [3 /*break*/, 6];
case 6: return [2 /*return*/, this.initCache(true)];
}
});
}); }));
return [2 /*return*/];
}
});
});
};
/**
* Clears the cache
*/
/**
* Clears the cache
* @return {?}
*/
ImageLoaderService.prototype.clearCache = /**
* Clears the cache
* @return {?}
*/
function () {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!this.platform.is('cordova')) {
return [2 /*return*/];
}
return [4 /*yield*/, this.ready()];
case 1:
_a.sent();
this.runLocked((/**
* @return {?}
*/
function () { return __awaiter(_this, void 0, void 0, function () {
var err_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
return [4 /*yield*/, this.file.removeRecursively(this.getFileCacheDirectory(), this.config.cacheDirectoryName)];
case 1:
_a.sent();
if (this.isWKWebView && !this.isIonicWKWebView) {
// also clear the temp files
try {
this.file.removeRecursively(this.file.tempDirectory, this.config.cacheDirectoryName);
}
catch (err) {
// Noop catch. Removing the tempDirectory might fail,
// as it is not persistent.
}
}
return [3 /*break*/, 3];
case 2:
err_2 = _a.sent();
this.throwError(err_2);
return [3 /*break*/, 3];
case 3: return [2 /*return*/, this.initCache(true)];
}
});
}); }));
return [2 /*return*/];
}
});
});
};
/**
* Gets the filesystem path of an image.
* This will return the remote path if anything goes wrong or if the cache service isn't ready yet.
* @param imageUrl The remote URL of the image
* @returns Returns a promise that will always resolve with an image URL
*/
/**
* Gets the filesystem path of an image.
* This will return the remote path if anything goes wrong or if the cache service isn't ready yet.
* @param {?} imageUrl The remote URL of the image
* @return {?} Returns a promise that will always resolve with an image URL
*/
ImageLoaderService.prototype.getImagePath = /**
* Gets the filesystem path of an image.
* This will return the remote path if anything goes wrong or if the cache service isn't ready yet.
* @param {?} imageUrl The remote URL of the image
* @return {?} Returns a promise that will always resolve with an image URL
*/
function (imageUrl) {
return __awaiter(this, void 0, void 0, function () {
var err_3;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (typeof imageUrl !== 'string' || imageUrl.length <= 0) {
throw new Error('The image url provided was empty or invalid.');
}
return [4 /*yield*/, this.ready()];
case 1:
_a.sent();
if (!this.isCacheReady) {
this.throwWarning('The cache system is not running. Images will be loaded by your browser instead.');
return [2 /*return*/, imageUrl];
}
if (this.isImageUrlRelative(imageUrl)) {
return [2 /*return*/, imageUrl];
}
_a.label = 2;
case 2:
_a.trys.push([2, 4, , 5]);
return [4 /*yield*/, this.getCachedImagePath(imageUrl)];
case 3: return [2 /*return*/, _a.sent()];
case 4:
err_3 = _a.sent();
// image doesn't exist in cache, lets fetch it and save it
return [2 /*return*/, this.addItemToQueue(imageUrl)];
case 5: return [2 /*return*/];
}
});
});
};
/**
* @private
* @return {?}
*/
ImageLoaderService.prototype.processLockedQueue = /**
* @private
* @return {?}
*/
function () {
return __awaiter(this, void 0, void 0, function () {
var err_4;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getLockedState()];
case 1:
if (_a.sent()) {
return [2 /*return*/];
}
if (!(this.lockedCallsQueue.length > 0)) return [3 /*break*/, 8];
return [4 /*yield*/, this.setLockedState(true)];
case 2:
_a.sent();
_a.label = 3;
case 3:
_a.trys.push([3, 5, , 6]);
return [4 /*yield*/, this.lockedCallsQueue.slice(0, 1)[0]()];
case 4:
_a.sent();
return [3 /*break*/, 6];
case 5:
err_4 = _a.sent();
console.log('Error running locked function: ', err_4);
return [3 /*break*/, 6];
case 6: return [4 /*yield*/, this.setLockedState(false)];
case 7:
_a.sent();
return [2 /*return*/, this.processLockedQueue()];
case 8: return [2 /*return*/];
}
});
});
};
/**
* @private
* @return {?}
*/
ImageLoaderService.prototype.getLockedState = /**
* @private
* @return {?}
*/
function () {
return this.lock$
.pipe(operators.take(1))
.toPromise();
};
/**
* @private
* @return {?}
*/
ImageLoaderService.prototype.awaitUnlocked = /**
* @private
* @return {?}
*/
function () {
return this.lock$
.pipe(operators.filter((/**
* @param {?} locked
* @return {?}
*/
function (locked) { return !!locked; })), operators.take(1))
.toPromise();
};
/**
* @private
* @param {?} locked
* @return {?}
*/
ImageLoaderService.prototype.setLockedState = /**
* @private
* @param {?} locked
* @return {?}
*/
function (locked) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
this.lockSubject.next(locked);
return [2 /*return*/];
});
});
};
/**
* @private
* @param {?} fn
* @return {?}
*/
ImageLoaderService.prototype.runLocked = /**
* @private
* @param {?} fn
* @return {?}
*/
function (fn) {
this.lockedCallsQueue.push(fn);
this.processLockedQueue();
};
/**
* Returns if an imageUrl is an relative path
* @param imageUrl
*/
/**
* Returns if an imageUrl is an relative path
* @private
* @param {?} imageUrl
* @return {?}
*/
ImageLoaderService.prototype.isImageUrlRelative = /**
* Returns if an imageUrl is an relative path
* @private
* @param {?} imageUrl
* @return {?}
*/
function (imageUrl) {
return !/^(https?|file):\/\/\/?/i.test(imageUrl);
};
/**
* Add an item to the queue
* @param imageUrl
* @param resolve
* @param reject
*/
/**
* Add an item to the queue
* @private
* @param {?} imageUrl
* @param {?=} resolve
* @param {?=} reject
* @return {?}
*/
ImageLoaderService.prototype.addItemToQueue = /**
* Add an item to the queue
* @private
* @param {?} imageUrl
* @param {?=} resol