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Luke Pulverenti 2017-01-27 18:07:14 -05:00
parent 82bcca376f
commit 8a6884abef
494 changed files with 256 additions and 120180 deletions
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178
dashboard-ui/bower_components/emby-webcomponents/images/indexeddbimagefetcher.js vendored
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@ -1,177 +1 @@
define(['cryptojs-md5'], function () {
'use strict';
var indexedDB = window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB || window.OIndexedDB || window.msIndexedDB;
var dbVersion = 1;
var imagesTableName = "images";
var db;
function createObjectStore(dataBase) {
dataBase.createObjectStore(imagesTableName, { keyPath: "id" });
db = dataBase;
}
// Create/open database
var request = indexedDB.open("imagesDb2", dbVersion);
request.onupgradeneeded = function () {
createObjectStore(request.result);
};
request.onsuccess = function (event) {
console.log("Success creating/accessing IndexedDB database");
var localDb = request.result;
localDb.onerror = function (event) {
console.log("Error creating/accessing IndexedDB database");
};
// Interim solution for Google Chrome to create an objectStore. Will be deprecated
if (localDb.setVersion) {
if (localDb.version !== dbVersion) {
var setVersion = localDb.setVersion(dbVersion);
setVersion.onsuccess = function () {
createObjectStore(localDb);
};
} else {
db = localDb;
}
} else {
db = localDb;
}
};
function revoke(url) {
//URL.revokeObjectURL(url);
}
function loadImage(elem, url) {
if (elem.tagName !== "IMG") {
elem.style.backgroundImage = "url('" + url + "')";
revoke(url);
return Promise.resolve(elem);
} else {
elem.setAttribute("src", url);
revoke(url);
return Promise.resolve(elem);
}
}
function getCacheKey(url) {
// Try to strip off the domain to share the cache between local and remote connections
var index = url.indexOf('://');
if (index !== -1) {
url = url.substring(index + 3);
index = url.indexOf('/');
if (index !== -1) {
url = url.substring(index + 1);
}
}
return CryptoJS.MD5(url).toString();
}
function getFromDb(key) {
return new Promise(function (resolve, reject) {
var transaction = db.transaction(imagesTableName, "read");
// Retrieve the file that was just stored
var request = transaction.objectStore(imagesTableName).get(key);
request.onsuccess = function (event) {
var imgFile = event.target.result;
// Get window.URL object
var URL = window.URL || window.webkitURL;
// Create and revoke ObjectURL
var imgURL = URL.createObjectURL(imgFile);
resolve(imgURL);
};
request.onerror = reject;
});
}
function saveImageToDb(blob, key, resolve) {
// Open a transaction to the database
var transaction = db.transaction(imagesTableName, "readwrite");
// Put the blob into the dabase
var put = transaction.objectStore(imagesTableName).put({ id: key, data: blob });
// Get window.URL object
var URL = window.URL || window.webkitURL;
var imgURL = URL.createObjectURL(blob);
resolve(imgURL);
}
function getImageUrl(originalUrl) {
var key = getCacheKey(originalUrl);
return getFromDb(key).catch(function () {
return new Promise(function (resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open("GET", originalUrl, true);
// Set the responseType to blob
xhr.responseType = "blob";
xhr.addEventListener("load", function () {
if (xhr.status === 200) {
// Put the received blob into IndexedDB
saveImageToDb(xhr.response, key, resolve);
} else {
reject();
}
}, false);
xhr.onerror = reject;
// Send XHR
xhr.send();
});
});
}
return {
loadImage: function (elem, url) {
if (!db) {
return loadImage(elem, url);
}
return getImageUrl(url).then(function (localUrl) {
return loadImage(elem, localUrl);
}, function () {
return loadImage(elem, url);
});
}
};
});
define(["cryptojs-md5"],function(){"use strict";function createObjectStore(dataBase){dataBase.createObjectStore(imagesTableName,{keyPath:"id"}),db=dataBase}function revoke(url){}function loadImage(elem,url){return"IMG"!==elem.tagName?(elem.style.backgroundImage="url('"+url+"')",revoke(url),Promise.resolve(elem)):(elem.setAttribute("src",url),revoke(url),Promise.resolve(elem))}function getCacheKey(url){var index=url.indexOf("://");return index!==-1&&(url=url.substring(index+3),index=url.indexOf("/"),index!==-1&&(url=url.substring(index+1))),CryptoJS.MD5(url).toString()}function getFromDb(key){return new Promise(function(resolve,reject){var transaction=db.transaction(imagesTableName,"read"),request=transaction.objectStore(imagesTableName).get(key);request.onsuccess=function(event){var imgFile=event.target.result,URL=window.URL||window.webkitURL,imgURL=URL.createObjectURL(imgFile);resolve(imgURL)},request.onerror=reject})}function saveImageToDb(blob,key,resolve){var transaction=db.transaction(imagesTableName,"readwrite"),URL=(transaction.objectStore(imagesTableName).put({id:key,data:blob}),window.URL||window.webkitURL),imgURL=URL.createObjectURL(blob);resolve(imgURL)}function getImageUrl(originalUrl){var key=getCacheKey(originalUrl);return getFromDb(key).catch(function(){return new Promise(function(resolve,reject){var xhr=new XMLHttpRequest;xhr.open("GET",originalUrl,!0),xhr.responseType="blob",xhr.addEventListener("load",function(){200===xhr.status?saveImageToDb(xhr.response,key,resolve):reject()},!1),xhr.onerror=reject,xhr.send()})})}var db,indexedDB=window.indexedDB||window.webkitIndexedDB||window.mozIndexedDB||window.OIndexedDB||window.msIndexedDB,dbVersion=1,imagesTableName="images",request=indexedDB.open("imagesDb2",dbVersion);return request.onupgradeneeded=function(){createObjectStore(request.result)},request.onsuccess=function(event){console.log("Success creating/accessing IndexedDB database");var localDb=request.result;if(localDb.onerror=function(event){console.log("Error creating/accessing IndexedDB database")},localDb.setVersion)if(localDb.version!==dbVersion){var setVersion=localDb.setVersion(dbVersion);setVersion.onsuccess=function(){createObjectStore(localDb)}}else db=localDb;else db=localDb},{loadImage:function(elem,url){return db?getImageUrl(url).then(function(localUrl){return loadImage(elem,localUrl)},function(){return loadImage(elem,url)}):loadImage(elem,url)}}});