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41 行
1.6 KiB
JavaScript
41 行
1.6 KiB
JavaScript
// In order to give access to the webview to certain functions of the main process, we need
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// this bridge which listens from the main process and sends to the webview and the other
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// way around. This is necessary after having enabled the "contextIsolation" option, which
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// prevents the webview from accessing low-level methods in the main process.
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const ipcRenderer = require('electron').ipcRenderer;
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ipcRenderer.on('setHtml', (event, html, options) => {
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window.postMessage({ target: 'webview', name: 'setHtml', data: { html: html, options: options } }, '*');
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});
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ipcRenderer.on('scrollToHash', (event, hash) => {
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window.postMessage({ target: 'webview', name: 'scrollToHash', data: { hash: hash } }, '*');
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});
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ipcRenderer.on('setPercentScroll', (event, percent) => {
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window.postMessage({ target: 'webview', name: 'setPercentScroll', data: { percent: percent } }, '*');
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});
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ipcRenderer.on('setMarkers', (event, keywords, options) => {
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window.postMessage({ target: 'webview', name: 'setMarkers', data: { keywords: keywords, options: options } }, '*');
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});
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window.addEventListener('message', event => {
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// Here we only deal with messages that are sent from the webview to the main Electron process
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if (!event.data || event.data.target !== 'main') return;
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const callName = event.data.name;
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const args = event.data.args;
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if (args.length === 0) {
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ipcRenderer.sendToHost(callName);
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} else if (args.length === 1) {
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ipcRenderer.sendToHost(callName, args[0]);
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} else if (args.length === 2) {
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ipcRenderer.sendToHost(callName, args[1]);
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} else {
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throw new Error('Unsupported number of args');
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}
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});
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