96 lines
3.3 KiB
CoffeeScript
96 lines
3.3 KiB
CoffeeScript
app = require 'app'
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fs = require 'fs'
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path = require 'path'
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url = require 'url'
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# Mapping between hostname and file path.
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hostPathMap = {}
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hostPathMapNextKey = 0
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getHostForPath = (path) ->
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key = "extension-#{++hostPathMapNextKey}"
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hostPathMap[key] = path
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key
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getPathForHost = (host) ->
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hostPathMap[host]
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# Cache extensionInfo.
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extensionInfoMap = {}
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getExtensionInfoFromPath = (srcDirectory) ->
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manifest = JSON.parse fs.readFileSync(path.join(srcDirectory, 'manifest.json'))
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unless extensionInfoMap[manifest.name]?
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# We can not use 'file://' directly because all resources in the extension
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# will be treated as relative to the root in Chrome.
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page = url.format
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protocol: 'chrome-extension'
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slashes: true
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hostname: getHostForPath srcDirectory
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pathname: manifest.devtools_page
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extensionInfoMap[manifest.name] =
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startPage: page
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name: manifest.name
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srcDirectory: srcDirectory
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exposeExperimentalAPIs: true
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extensionInfoMap[manifest.name]
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# The loaded extensions cache and its persistent path.
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loadedExtensions = null
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loadedExtensionsPath = null
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# Persistent loaded extensions.
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app.on 'will-quit', ->
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try
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loadedExtensions = Object.keys(extensionInfoMap).map (key) -> extensionInfoMap[key].srcDirectory
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try
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fs.mkdirSync path.dirname(loadedExtensionsPath)
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catch e
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fs.writeFileSync loadedExtensionsPath, JSON.stringify(loadedExtensions)
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catch e
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# We can not use protocol or BrowserWindow until app is ready.
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app.once 'ready', ->
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protocol = require 'protocol'
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BrowserWindow = require 'browser-window'
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# Load persistented extensions.
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loadedExtensionsPath = path.join app.getDataPath(), 'DevTools Extensions'
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try
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loadedExtensions = JSON.parse fs.readFileSync(loadedExtensionsPath)
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loadedExtensions = [] unless Array.isArray loadedExtensions
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# Preheat the extensionInfo cache.
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getExtensionInfoFromPath srcDirectory for srcDirectory in loadedExtensions
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catch e
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# The chrome-extension: can map a extension URL request to real file path.
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chromeExtensionHandler = (request, callback) ->
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parsed = url.parse request.url
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return callback() unless parsed.hostname and parsed.path?
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return callback() unless /extension-\d+/.test parsed.hostname
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directory = getPathForHost parsed.hostname
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return callback() unless directory?
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callback path.join(directory, parsed.path)
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protocol.registerFileProtocol 'chrome-extension', chromeExtensionHandler, (error) ->
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console.error 'Unable to register chrome-extension protocol' if error
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BrowserWindow::_loadDevToolsExtensions = (extensionInfoArray) ->
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@devToolsWebContents?.executeJavaScript "DevToolsAPI.addExtensions(#{JSON.stringify(extensionInfoArray)});"
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BrowserWindow.addDevToolsExtension = (srcDirectory) ->
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extensionInfo = getExtensionInfoFromPath srcDirectory
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if extensionInfo
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window._loadDevToolsExtensions [extensionInfo] for window in BrowserWindow.getAllWindows()
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extensionInfo.name
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BrowserWindow.removeDevToolsExtension = (name) ->
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delete extensionInfoMap[name]
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# Load persistented extensions when devtools is opened.
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init = BrowserWindow::_init
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BrowserWindow::_init = ->
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init.call this
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@on 'devtools-opened', ->
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@_loadDevToolsExtensions Object.keys(extensionInfoMap).map (key) -> extensionInfoMap[key]
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