36 lines
961 B
JavaScript
36 lines
961 B
JavaScript
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const preferences = process.getRenderProcessPreferences()
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if (!preferences || preferences.length == 0) return
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const {webFrame} = require('electron')
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// Check whether pattern matches.
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// https://developer.chrome.com/extensions/match_patterns
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const matchesPattern = function (pattern) {
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if (pattern === '<all_urls>')
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return true
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const regexp = new RegExp('^' + pattern.replace(/\*/g, '.*') + '$')
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return location.href.match(regexp)
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}
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// Run injected scripts.
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// https://developer.chrome.com/extensions/content_scripts
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const injectContentScript = function (script) {
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for (const match of script.matches) {
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if (!matchesPattern(match)) return
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}
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for (const js of script.js) {
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if (script.runAt === 'document_start') {
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webFrame.executeJavaScript(String(js))
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}
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}
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}
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// Read the renderer process preferences.
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for (const pref of preferences) {
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if (pref.contentScripts) {
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pref.contentScripts.forEach(injectContentScript)
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}
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}
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