81 lines
2.3 KiB
CoffeeScript
81 lines
2.3 KiB
CoffeeScript
IDWeakMap = require 'id_weak_map'
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class ObjectsStore
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@stores = {}
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constructor: ->
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@nextId = 0
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@objects = []
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getNextId: ->
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++@nextId
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add: (obj) ->
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id = @getNextId()
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@objects[id] = obj
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id
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has: (id) ->
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@objects[id]?
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remove: (id) ->
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throw new Error("Invalid key #{id} for ObjectsStore") unless @has id
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delete @objects[id]
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get: (id) ->
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throw new Error("Invalid key #{id} for ObjectsStore") unless @has id
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@objects[id]
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@forRenderView: (processId, routingId) ->
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key = "#{processId}_#{routingId}"
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@stores[key] = new ObjectsStore unless @stores[key]?
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@stores[key]
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@releaseForRenderView: (processId, routingId) ->
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key = "#{processId}_#{routingId}"
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delete @stores[key]
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# Objects in weak map will be not referenced (so we won't leak memory), and
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# every object created in browser will have a unique id in weak map.
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objectsWeakMap = new IDWeakMap
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objectsWeakMap.add = (obj) ->
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id = IDWeakMap::add.call this, obj
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Object.defineProperty obj, 'id',
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enumerable: true, writable: false, value: id
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id
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windowsWeakMap = new IDWeakMap
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process.on 'ATOM_BROWSER_INTERNAL_NEW', (obj) ->
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# It's possible that user created a object in browser side and then want to
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# get it in renderer via remote.getObject. So we must add every native object
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# created in browser to the weak map even it may not be referenced by the
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# renderer.
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objectsWeakMap.add obj
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# Also remember all windows.
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windowsWeakMap.add obj if obj.constructor.name is 'Window'
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exports.add = (processId, routingId, obj) ->
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# Some native objects may already been added to objectsWeakMap, be care not
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# to add it twice.
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objectsWeakMap.add obj unless obj.id?
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# Store and reference the object, then return the storeId which points to
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# where the object is stored. The caller can later dereference the object
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# with the storeId.
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store = ObjectsStore.forRenderView processId, routingId
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store.add obj
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exports.get = (id) ->
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objectsWeakMap.get id
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exports.getAllWindows = () ->
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keys = windowsWeakMap.keys()
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windowsWeakMap.get key for key in keys
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exports.remove = (processId, routingId, storeId) ->
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ObjectsStore.forRenderView(processId, routingId).remove storeId
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exports.clear = (processId, routingId) ->
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ObjectsStore.releaseForRenderView processId, routingId
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