Removed dependency of dennwc\dom\js
This removes the dependency of dennwc\dom\js which allows building with Go 1.13.
This commit is contained in:
joeyak
Zorchenhimer
parent
42bcead627
commit
3ac5af4548
1
go.mod
1
go.mod
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@ -7,7 +7,6 @@ require (
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github.com/cenkalti/backoff v2.1.1+incompatible // indirect
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github.com/chromedp/cdproto v0.0.0-20190412020601-c4267f5c421a // indirect
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github.com/containerd/continuity v0.0.0-20181203112020-004b46473808 // indirect
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github.com/dennwc/dom v0.3.0
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github.com/gorilla/sessions v1.1.3
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github.com/gorilla/websocket v1.4.0
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github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
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@ -3,6 +3,15 @@
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// license that can be found in the LICENSE file.
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(() => {
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// Map multiple JavaScript environments to a single common API,
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// preferring web standards over Node.js API.
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//
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// Environments considered:
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// - Browsers
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// - Node.js
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// - Electron
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// - Parcel
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if (typeof global !== "undefined") {
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// global already exists
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} else if (typeof window !== "undefined") {
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@ -13,30 +22,15 @@
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throw new Error("cannot export Go (neither global, window nor self is defined)");
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}
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// Map web browser API and Node.js API to a single common API (preferring web standards over Node.js API).
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const isNodeJS = global.process && global.process.title === "node";
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if (isNodeJS) {
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if (!global.require && typeof require !== "undefined") {
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global.require = require;
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}
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if (!global.fs && global.require) {
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global.fs = require("fs");
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}
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const nodeCrypto = require("crypto");
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global.crypto = {
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getRandomValues(b) {
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nodeCrypto.randomFillSync(b);
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},
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};
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global.performance = {
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now() {
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const [sec, nsec] = process.hrtime();
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return sec * 1000 + nsec / 1000000;
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},
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};
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const util = require("util");
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global.TextEncoder = util.TextEncoder;
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global.TextDecoder = util.TextDecoder;
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} else {
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if (!global.fs) {
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let outputBuf = "";
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global.fs = {
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constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused
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@ -72,6 +66,34 @@
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};
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}
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if (!global.crypto) {
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const nodeCrypto = require("crypto");
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global.crypto = {
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getRandomValues(b) {
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nodeCrypto.randomFillSync(b);
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},
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};
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}
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if (!global.performance) {
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global.performance = {
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now() {
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const [sec, nsec] = process.hrtime();
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return sec * 1000 + nsec / 1000000;
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},
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};
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}
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if (!global.TextEncoder) {
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global.TextEncoder = require("util").TextEncoder;
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}
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if (!global.TextDecoder) {
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global.TextDecoder = require("util").TextDecoder;
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}
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// End of polyfills for common API.
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const encoder = new TextEncoder("utf-8");
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const decoder = new TextDecoder("utf-8");
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@ -243,7 +265,15 @@
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const id = this._nextCallbackTimeoutID;
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this._nextCallbackTimeoutID++;
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this._scheduledTimeouts.set(id, setTimeout(
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() => { this._resume(); },
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() => {
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this._resume();
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while (this._scheduledTimeouts.has(id)) {
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// for some reason Go failed to register the timeout event, log and try again
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// (temporary workaround for https://github.com/golang/go/issues/28975)
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console.warn("scheduleTimeoutEvent: missed timeout event");
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this._resume();
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}
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},
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getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early
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));
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mem().setInt32(sp + 16, id, true);
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@ -357,6 +387,34 @@
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mem().setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16));
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},
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// func copyBytesToGo(dst []byte, src ref) (int, bool)
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"syscall/js.copyBytesToGo": (sp) => {
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const dst = loadSlice(sp + 8);
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const src = loadValue(sp + 32);
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if (!(src instanceof Uint8Array)) {
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mem().setUint8(sp + 48, 0);
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return;
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}
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const toCopy = src.subarray(0, dst.length);
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dst.set(toCopy);
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setInt64(sp + 40, toCopy.length);
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mem().setUint8(sp + 48, 1);
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},
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// func copyBytesToJS(dst ref, src []byte) (int, bool)
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"syscall/js.copyBytesToJS": (sp) => {
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const dst = loadValue(sp + 8);
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const src = loadSlice(sp + 16);
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if (!(dst instanceof Uint8Array)) {
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mem().setUint8(sp + 48, 0);
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return;
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}
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const toCopy = src.subarray(0, dst.length);
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dst.set(toCopy);
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setInt64(sp + 40, toCopy.length);
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mem().setUint8(sp + 48, 1);
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},
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"debug": (value) => {
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console.log(value);
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},
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@ -373,7 +431,6 @@
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true,
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false,
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global,
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this._inst.exports.mem,
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this,
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];
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this._refs = new Map();
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@ -385,9 +442,13 @@
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let offset = 4096;
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const strPtr = (str) => {
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let ptr = offset;
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new Uint8Array(mem.buffer, offset, str.length + 1).set(encoder.encode(str + "\0"));
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offset += str.length + (8 - (str.length % 8));
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const ptr = offset;
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const bytes = encoder.encode(str + "\0");
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new Uint8Array(mem.buffer, offset, bytes.length).set(bytes);
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offset += bytes.length;
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if (offset % 8 !== 0) {
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offset += 8 - (offset % 8);
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}
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return ptr;
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};
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@ -439,9 +500,15 @@
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}
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}
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if (isNodeJS) {
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if (
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global.require &&
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global.require.main === module &&
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global.process &&
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global.process.versions &&
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!global.process.versions.electron
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) {
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if (process.argv.length < 3) {
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process.stderr.write("usage: go_js_wasm_exec [wasm binary] [arguments]\n");
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console.error("usage: go_js_wasm_exec [wasm binary] [arguments]");
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process.exit(1);
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}
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@ -459,7 +526,8 @@
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});
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return go.run(result.instance);
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}).catch((err) => {
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throw err;
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console.error(err);
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process.exit(1);
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});
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}
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})();
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71
wasm/main.go
71
wasm/main.go
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@ -9,7 +9,8 @@ import (
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"strings"
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"time"
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"github.com/dennwc/dom/js"
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"syscall/js"
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"github.com/zorchenhimer/MovieNight/common"
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)
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@ -17,21 +18,22 @@ var (
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timestamp bool
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color string
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auth common.CommandLevel
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global js.Value
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)
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func getElement(s string) js.Value {
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return js.Get("document").Call("getElementById", s)
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return global.Get("document").Call("getElementById", s)
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}
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func join(v []js.Value) {
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color := js.Call("getCookie", "color").String()
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color := global.Call("getCookie", "color").String()
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if color == "" {
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// If a color is not set, do a random color
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color = common.RandomColor()
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} else if !common.IsValidColor(color) {
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// Don't show the user the error, just clear the cookie
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common.LogInfof("%#v is not a valid color, clearing cookie", color)
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js.Call("deleteCookie", "color")
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global.Call("deleteCookie", "color")
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}
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joinData, err := json.Marshal(common.JoinData{
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@ -51,7 +53,7 @@ func join(v []js.Value) {
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common.LogErrorf("Could not marshal data: %v", err)
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}
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js.Call("websocketSend", string(data))
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global.Call("websocketSend", string(data))
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}
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func recieve(v []js.Value) {
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@ -63,7 +65,7 @@ func recieve(v []js.Value) {
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chatJSON, err := common.DecodeData(v[0].String())
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if err != nil {
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fmt.Printf("Error decoding data: %s\n", err)
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js.Call("appendMessages", fmt.Sprintf("<div>%v</div>", v))
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global.Call("appendMessages", fmt.Sprintf("<div>%v</div>", v))
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return
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}
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@ -86,7 +88,7 @@ func recieve(v []js.Value) {
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auth = h.Data.(common.CommandLevel)
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case common.CdColor:
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color = h.Data.(string)
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js.Get("document").Set("cookie", fmt.Sprintf("color=%s; expires=Fri, 31 Dec 9999 23:59:59 GMT", color))
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global.Get("document").Set("cookie", fmt.Sprintf("color=%s; expires=Fri, 31 Dec 9999 23:59:59 GMT", color))
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case common.CdEmote:
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data := h.Data.(map[string]interface{})
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emoteNames = make([]string, 0, len(data))
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@ -98,7 +100,7 @@ func recieve(v []js.Value) {
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sort.Strings(emoteNames)
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case common.CdJoin:
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notify("")
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js.Call("openChat")
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global.Call("openChat")
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case common.CdNotify:
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notify(h.Data.(string))
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}
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@ -126,18 +128,18 @@ func recieve(v []js.Value) {
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switch d.Command {
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case common.CmdPlaying:
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if d.Arguments == nil || len(d.Arguments) == 0 {
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js.Call("setPlaying", "", "")
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global.Call("setPlaying", "", "")
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} else if len(d.Arguments) == 1 {
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js.Call("setPlaying", d.Arguments[0], "")
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global.Call("setPlaying", d.Arguments[0], "")
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} else if len(d.Arguments) == 2 {
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js.Call("setPlaying", d.Arguments[0], d.Arguments[1])
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global.Call("setPlaying", d.Arguments[0], d.Arguments[1])
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}
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case common.CmdRefreshPlayer:
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js.Call("initPlayer", nil)
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global.Call("initPlayer", nil)
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case common.CmdPurgeChat:
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js.Call("purgeChat", nil)
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global.Call("purgeChat", nil)
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appendMessage(d.HTML())
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case common.CmdHelp:
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url := "/help"
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@ -145,13 +147,13 @@ func recieve(v []js.Value) {
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url = d.Arguments[0]
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}
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appendMessage(d.HTML())
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js.Get("window").Call("open", url, "_blank", "menubar=0,status=0,toolbar=0,width=300,height=600")
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global.Get("window").Call("open", url, "_blank", "menubar=0,status=0,toolbar=0,width=300,height=600")
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}
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}
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}
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func appendMessage(msg string) {
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js.Call("appendMessages", "<div>"+msg+"</div>")
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global.Call("appendMessages", "<div>"+msg+"</div>")
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}
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func websocketSend(msg string, dataType common.ClientDataType) error {
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@ -167,7 +169,7 @@ func websocketSend(msg string, dataType common.ClientDataType) error {
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return fmt.Errorf("could not marshal data: %v", err)
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}
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js.Call("websocketSend", string(data))
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global.Call("websocketSend", string(data))
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return nil
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}
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@ -188,12 +190,12 @@ func send(this js.Value, v []js.Value) interface{} {
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func showChatError(err error) {
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if err != nil {
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fmt.Printf("Could not send: %v\n", err)
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js.Call("appendMessages", `<div><span style="color: red;">Could not send message</span></div>`)
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global.Call("appendMessages", `<div><span style="color: red;">Could not send message</span></div>`)
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}
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}
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func notify(msg string) {
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js.Call("setNotifyBox", msg)
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global.Call("setNotifyBox", msg)
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}
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func showTimestamp(v []js.Value) {
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@ -227,17 +229,19 @@ func debugValues(v []js.Value) {
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}
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func main() {
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global = js.Global()
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common.SetupLogging(common.LLDebug, "")
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js.Set("processMessageKey", js.FuncOf(processMessageKey))
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js.Set("sendMessage", js.FuncOf(send))
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js.Set("isValidColor", js.FuncOf(isValidColor))
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global.Set("processMessageKey", js.FuncOf(processMessageKey))
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global.Set("sendMessage", js.FuncOf(send))
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global.Set("isValidColor", js.FuncOf(isValidColor))
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js.Set("recieveMessage", js.CallbackOf(recieve))
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js.Set("processMessage", js.CallbackOf(processMessage))
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js.Set("debugValues", js.CallbackOf(debugValues))
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js.Set("showTimestamp", js.CallbackOf(showTimestamp))
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js.Set("join", js.CallbackOf(join))
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global.Set("recieveMessage", jsCallbackOf(recieve))
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global.Set("processMessage", jsCallbackOf(processMessage))
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global.Set("debugValues", jsCallbackOf(debugValues))
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global.Set("showTimestamp", jsCallbackOf(showTimestamp))
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global.Set("join", jsCallbackOf(join))
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go func() {
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time.Sleep(time.Second * 1)
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@ -246,15 +250,26 @@ func main() {
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inner += fmt.Sprintf(`<option value="%s">%s</option>\n`, c, c)
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}
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js.Get("colorSelect").Set("innerHTML", inner)
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global.Get("colorSelect").Set("innerHTML", inner)
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}()
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// This is needed so the goroutine does not end
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for {
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// heatbeat to keep connection alive to deal with nginx
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if js.Get("inChat").Bool() {
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if global.Get("inChat").Bool() {
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websocketSend("", common.CdPing)
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}
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time.Sleep(time.Second * 10)
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}
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}
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func jsCallbackOf(fnc func(v []js.Value)) js.Func {
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return js.FuncOf(func(this js.Value, refs []js.Value) interface{} {
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vals := make([]js.Value, 0, len(refs))
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for _, ref := range refs {
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vals = append(vals, ref)
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}
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fnc(vals)
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return nil
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})
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}
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@ -5,7 +5,8 @@ package main
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import (
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"strings"
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"github.com/dennwc/dom/js"
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"syscall/js"
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"github.com/zorchenhimer/MovieNight/common"
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)
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@ -70,7 +71,7 @@ func processMessageKey(this js.Value, v []js.Value) interface{} {
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}
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currentSug = filteredSug[newidx]
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case keyTab, keyEnter:
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msg := js.Get("msg")
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msg := global.Get("msg")
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val := msg.Get("value").String()
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newval := val[:startIdx]
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@ -104,7 +105,7 @@ func processMessageKey(this js.Value, v []js.Value) interface{} {
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}
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func processMessage(v []js.Value) {
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msg := js.Get("msg")
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msg := global.Get("msg")
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text := strings.ToLower(msg.Get("value").String())
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startIdx := msg.Get("selectionStart").Int()
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@ -189,6 +190,6 @@ func updateSuggestionDiv() {
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}
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}
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// The \n is so it's easier to read th source in web browsers for the dev
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js.Get("suggestions").Set("innerHTML", strings.Join(divs, "\n"))
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js.Call("updateSuggestionScroll")
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global.Get("suggestions").Set("innerHTML", strings.Join(divs, "\n"))
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global.Call("updateSuggestionScroll")
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}
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