150 lines
4.7 KiB
CoffeeScript
150 lines
4.7 KiB
CoffeeScript
ipc = require 'ipc'
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webContents = require 'web-contents'
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webViewManager = null # Doesn't exist in early initialization.
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supportedWebViewEvents = [
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'load-commit'
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'did-finish-load'
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'did-fail-load'
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'did-frame-finish-load'
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'did-start-loading'
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'did-stop-loading'
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'did-get-response-details'
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'did-get-redirect-request'
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'dom-ready'
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'console-message'
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'new-window'
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'close'
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'crashed'
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'gpu-crashed'
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'plugin-crashed'
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'destroyed'
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'page-title-set'
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'page-favicon-updated'
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'enter-html-full-screen'
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'leave-html-full-screen'
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]
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nextInstanceId = 0
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guestInstances = {}
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embedderElementsMap = {}
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reverseEmbedderElementsMap = {}
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# Generate guestInstanceId.
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getNextInstanceId = (webContents) ->
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++nextInstanceId
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# Create a new guest instance.
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createGuest = (embedder, params) ->
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webViewManager ?= process.atomBinding 'web_view_manager'
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id = getNextInstanceId embedder
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guest = webContents.create {isGuest: true, embedder}
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guestInstances[id] = {guest, embedder}
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# Destroy guest when the embedder is gone or navigated.
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destroyEvents = ['destroyed', 'crashed', 'did-navigate-to-different-page']
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destroy = ->
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destroyGuest embedder, id if guestInstances[id]?
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embedder.once event, destroy for event in destroyEvents
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guest.once 'destroyed', ->
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embedder.removeListener event, destroy for event in destroyEvents
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# Init guest web view after attached.
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guest.once 'did-attach', ->
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params = @attachParams
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delete @attachParams
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@viewInstanceId = params.instanceId
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@setSize
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normal:
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width: params.elementWidth, height: params.elementHeight
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enableAutoSize: params.autosize
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min:
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width: params.minwidth, height: params.minheight
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max:
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width: params.maxwidth, height: params.maxheight
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if params.src
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opts = {}
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opts.httpReferrer = params.httpreferrer if params.httpreferrer
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opts.userAgent = params.useragent if params.useragent
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@loadUrl params.src, opts
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if params.allowtransparency?
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@setAllowTransparency params.allowtransparency
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# Dispatch events to embedder.
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for event in supportedWebViewEvents
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do (event) ->
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guest.on event, (_, args...) ->
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embedder.send "ATOM_SHELL_GUEST_VIEW_INTERNAL_DISPATCH_EVENT-#{guest.viewInstanceId}", event, args...
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# Dispatch guest's IPC messages to embedder.
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guest.on 'ipc-message-host', (_, packed) ->
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[channel, args...] = packed
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embedder.send "ATOM_SHELL_GUEST_VIEW_INTERNAL_IPC_MESSAGE-#{guest.viewInstanceId}", channel, args...
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# Autosize.
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guest.on 'size-changed', (_, args...) ->
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embedder.send "ATOM_SHELL_GUEST_VIEW_INTERNAL_SIZE_CHANGED-#{guest.viewInstanceId}", args...
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id
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# Attach the guest to an element of embedder.
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attachGuest = (embedder, elementInstanceId, guestInstanceId, params) ->
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guest = guestInstances[guestInstanceId].guest
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# Destroy the old guest when attaching.
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key = "#{embedder.getId()}-#{elementInstanceId}"
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oldGuestInstanceId = embedderElementsMap[key]
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if oldGuestInstanceId?
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# Reattachment to the same guest is not currently supported.
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return unless oldGuestInstanceId != guestInstanceId
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return unless guestInstances[oldGuestInstanceId]?
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destroyGuest embedder, oldGuestInstanceId
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webViewManager.addGuest guestInstanceId, elementInstanceId, embedder, guest,
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nodeIntegration: params.nodeintegration
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plugins: params.plugins
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disableWebSecurity: params.disablewebsecurity
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preloadUrl: params.preload ? ''
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guest.attachParams = params
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embedderElementsMap[key] = guestInstanceId
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reverseEmbedderElementsMap[guestInstanceId] = key
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# Destroy an existing guest instance.
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destroyGuest = (embedder, id) ->
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webViewManager.removeGuest embedder, id
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guestInstances[id].guest.destroy()
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delete guestInstances[id]
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key = reverseEmbedderElementsMap[id]
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if key?
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delete reverseEmbedderElementsMap[id]
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delete embedderElementsMap[key]
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ipc.on 'ATOM_SHELL_GUEST_VIEW_MANAGER_CREATE_GUEST', (event, params, requestId) ->
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event.sender.send "ATOM_SHELL_RESPONSE_#{requestId}", createGuest(event.sender, params)
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ipc.on 'ATOM_SHELL_GUEST_VIEW_MANAGER_ATTACH_GUEST', (event, elementInstanceId, guestInstanceId, params) ->
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attachGuest event.sender, elementInstanceId, guestInstanceId, params
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ipc.on 'ATOM_SHELL_GUEST_VIEW_MANAGER_DESTROY_GUEST', (event, id) ->
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destroyGuest event.sender, id
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ipc.on 'ATOM_SHELL_GUEST_VIEW_MANAGER_SET_SIZE', (event, id, params) ->
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guestInstances[id]?.guest.setSize params
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ipc.on 'ATOM_SHELL_GUEST_VIEW_MANAGER_SET_ALLOW_TRANSPARENCY', (event, id, allowtransparency) ->
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guestInstances[id]?.guest.setAllowTransparency allowtransparency
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# Returns WebContents from its guest id.
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exports.getGuest = (id) ->
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guestInstances[id]?.guest
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# Returns the embedder of the guest.
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exports.getEmbedder = (id) ->
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guestInstances[id]?.embedder
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