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javascript - Electron showOpenDialog 箭头功能(event.send)不起作用

转载 作者:行者123 更新时间:2023-12-03 12:23:38 28 4
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我正在按照打开文件的对话框示例进行操作:https://github.com/electron/electron-api-demos

我从示例中复制了代码。打开文件对话框确实有效,我能够选择一个文件,但无法弄清楚为什么将文件路径发送回渲染器的箭头功能不起作用(console.log 没有记录任何内容)。

谁能找出问题所在?该项目是使用 electron-forge 开始的,我的操作系统是 linux。谢谢

索引.js

const { app, BrowserWindow, ipcMain, dialog, } = require('electron');
require('electron-reload')(__dirname);
const path = require('path');

// Handle creating/removing shortcuts on Windows when installing/uninstalling.
if (require('electron-squirrel-startup')) { // eslint-disable-line global-require
app.quit();
}


const createWindow = () => {
// Create the browser window.
const mainWindow = new BrowserWindow({
width: 800,
height: 600,
webPreferences: {
nodeIntegration: true
}
});

// and load the index.html of the app.
mainWindow.loadFile(path.join(__dirname, 'index.html'));

// Open the DevTools.
mainWindow.webContents.openDevTools();
};

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);

// Quit when all windows are closed.
app.on('window-all-closed', () => {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.quit();
}
});

app.on('activate', () => {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (BrowserWindow.getAllWindows().length === 0) {
createWindow();
}
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and import them here.


ipcMain.on('open-file-dialog', (event) => {
dialog.showOpenDialog(
{
properties: ['openFile',]
},
(files) => {
console.log('ok')
if (files) {
event.sender.send('select-file', files)
}
})
})

index.html

<!DOCTYPE html>
<html>

<head>
<title>Hello</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">

</head>

<body>
<div>
<div>
<button class="demo-button" id="select-directory">Select file</button>
<span class="demo-response" id="selected-file"></span>
</div>
<br><br>
</div>
<script>
const electron = require('electron')
const { ipcRenderer } = electron

const selectDirBtn = document.getElementById('select-directory')

selectDirBtn.addEventListener('click', (event) => {
ipcRenderer.send('open-file-dialog')
})

ipcRenderer.on('select-file', (event, path) => {
console.log(path)
document.getElementById('selected-file').innerHTML = `You selected: ${path}`
})

</script>
</body>

</html>

最佳答案

dialog API随着 Electron 6 的发布进行了修改。

dialog.showOpenDialog()和其他对话框函数现在返回 promise 并且不再采用回调函数。还有以阻塞方式返回选择结果的同步副本,例如dialog.showOpenDialogSync() .

示例用法(在渲染器进程中)

const remote = require("electron").remote
const dialog = remote.dialog

dialog.showOpenDialog(remote.getCurrentWindow(), {
properties: ["openFile", "multiSelections"]
}).then(result => {
if (result.canceled === false) {
console.log("Selected file paths:")
console.log(result.filePaths)
}
}).catch(err => {
console.log(err)
})

截至 2020 年 2 月,electron-api-demos使用 Electron 5。这就是为什么他们的对话调用代码仍然使用旧形式的原因。

关于javascript - Electron showOpenDialog 箭头功能(event.send)不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60181481/

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