зеркало из https://github.com/electron/electron.git
83 строки
2.2 KiB
CoffeeScript
83 строки
2.2 KiB
CoffeeScript
BrowserWindow = require 'browser-window'
|
|
IDWeakMap = require 'id-weak-map'
|
|
v8Util = process.atomBinding 'v8_util'
|
|
|
|
class ObjectsStore
|
|
@stores = {}
|
|
|
|
constructor: ->
|
|
@nextId = 0
|
|
@objects = []
|
|
|
|
getNextId: ->
|
|
++@nextId
|
|
|
|
add: (obj) ->
|
|
id = @getNextId()
|
|
@objects[id] = obj
|
|
id
|
|
|
|
has: (id) ->
|
|
@objects[id]?
|
|
|
|
remove: (id) ->
|
|
throw new Error("Invalid key #{id} for ObjectsStore") unless @has id
|
|
delete @objects[id]
|
|
|
|
get: (id) ->
|
|
throw new Error("Invalid key #{id} for ObjectsStore") unless @has id
|
|
@objects[id]
|
|
|
|
@forRenderView: (processId, routingId) ->
|
|
key = "#{processId}_#{routingId}"
|
|
@stores[key] = new ObjectsStore unless @stores[key]?
|
|
@stores[key]
|
|
|
|
@releaseForRenderView: (processId, routingId) ->
|
|
key = "#{processId}_#{routingId}"
|
|
delete @stores[key]
|
|
|
|
# Objects in weak map will be not referenced (so we won't leak memory), and
|
|
# every object created in browser will have a unique id in weak map.
|
|
objectsWeakMap = new IDWeakMap
|
|
objectsWeakMap.add = (obj) ->
|
|
id = IDWeakMap::add.call this, obj
|
|
v8Util.setHiddenValue obj, 'atomId', id
|
|
id
|
|
|
|
windowsWeakMap = new IDWeakMap
|
|
|
|
process.on 'ATOM_BROWSER_INTERNAL_NEW', (obj) ->
|
|
# Remember all windows.
|
|
if obj.constructor is BrowserWindow
|
|
id = windowsWeakMap.add obj
|
|
obj.on 'destroyed', ->
|
|
windowsWeakMap.remove id
|
|
|
|
exports.add = (processId, routingId, obj) ->
|
|
# Some native objects may already been added to objectsWeakMap, be care not
|
|
# to add it twice.
|
|
objectsWeakMap.add obj unless v8Util.getHiddenValue obj, 'atomId'
|
|
id = v8Util.getHiddenValue obj, 'atomId'
|
|
|
|
# Store and reference the object, then return the storeId which points to
|
|
# where the object is stored. The caller can later dereference the object
|
|
# with the storeId.
|
|
store = ObjectsStore.forRenderView processId, routingId
|
|
storeId = store.add obj
|
|
|
|
[id, storeId]
|
|
|
|
exports.get = (id) ->
|
|
objectsWeakMap.get id
|
|
|
|
exports.getAllWindows = () ->
|
|
keys = windowsWeakMap.keys()
|
|
windowsWeakMap.get key for key in keys
|
|
|
|
exports.remove = (processId, routingId, storeId) ->
|
|
ObjectsStore.forRenderView(processId, routingId).remove storeId
|
|
|
|
exports.clear = (processId, routingId) ->
|
|
ObjectsStore.releaseForRenderView processId, routingId
|