open source

2020-11-11 16:17:13 +08:00
parent 4d989f3ecb
commit bc4ca748de
2441 changed files with 623057 additions and 2 deletions
@@ -0,0 +1,93 @@
+function async(gen) {
+    "use strict";
+    var log = console.log;
+    var g = gen();
+    let nr = null;
+    function cast(value) {
+        return value instanceof Promise && value.constructor === Promise ? value : new Promise(function () { });
+    }
+    function thennext(v) {
+        nr = g.next(v);
+        var p = nr.value;
+        nr.done ? (0) : cast(p).then(thennext, function (e) { console.log('async reject:' + e); thennext(null); }).catch(function (r) { 
+            alert(`${r}
+                ${r.stack}`); 
+        });
+    }
+    thennext(void 0);
+}
+exports.async = async;
+//延时
+function delay(ms) {
+    return new Promise(resolve => setTimeout(resolve, ms));
+}
+exports.delay = delay;
+//下载图片
+function loadImage(src) {
+    return new Promise((resolve, reject) => {
+        var img = new Image();
+        img.src = src;
+        img.onload = () => { resolve(img); };
+        img.onerror = () => {
+            //reject('file load err:' + src);
+            resolve(null);
+        };
+    });
+}
+exports.loadImage = loadImage;
+//下载文本文件
+function loadText(src) {
+    return new Promise((resolve, reject) => {
+        var xhr = new XMLHttpRequest();
+        xhr.open('GET', src);
+        xhr.onload = () => { resolve(xhr.responseText); };
+        xhr.onerror = (e) => { 
+            //if (reject)
+            //    reject('download xhr error:' + src + '. e=' + e); 
+            resolve(null);
+        };
+        xhr.send();
+    });
+}
+exports.loadText = loadText;
+function downloadSync(url, bin, onprog) {
+    return new Promise(function (resolve, reject) {
+        var f = new conch_File(url);
+        var fr = new conch_FileReader();
+        fr.setIgnoreError(true);
+        fr.onload = () => {
+            console.log('download end');
+            resolve(fr.result);
+        };
+        fr.onerror = (e) => { console.log('onerror ' + e); 
+            //if (reject)
+            //    reject(e); 
+            resolve(null);
+        };
+        fr.onprogress = onprog;
+        if (bin)
+            fr.readAsArrayBuffer(f);
+        else
+            fr.readAsText(f);
+    });
+}
+exports.downloadSync = downloadSync;
+//直到func返回true,tm是间隔
+function check(func, tm) {
+    return new Promise(function (resolve, reject) {
+        function checkFunc() {
+            if (func()) {
+                clearInterval(chker);
+                resolve(1);
+            }
+        }
+        var chker = setInterval(checkFunc, tm);
+    });
+}
+function regGlobal(window) {
+}
+exports.regGlobal = regGlobal;
+window['async'] = async;
+window['delay'] = delay;
+window['downloadSync'] = downloadSync;
+window['asynccheck'] = check;