electron/atom/browser/api/lib/web-contents.coffee
Cheng Zhao 75f49477ca Cleanup wrapper function when app has done quitting
The app may still do something when quitting, we need to make sure the
wrapper function is still there at that time.
2015-11-04 16:54:36 +08:00

117 lines
3.5 KiB
CoffeeScript

EventEmitter = require('events').EventEmitter
Menu = require './menu'
NavigationController = require './navigation-controller'
binding = process.atomBinding 'web_contents'
ipc = require 'ipc'
nextId = 0
getNextId = -> ++nextId
PDFPageSize =
A4:
custom_display_name: "A4"
height_microns: 297000
name: "ISO_A4"
is_default: "true"
width_microns: 210000
A3:
custom_display_name: "A3"
height_microns: 420000
name: "ISO_A3"
width_microns: 297000
Legal:
custom_display_name: "Legal"
height_microns: 355600
name: "NA_LEGAL"
width_microns: 215900
Letter:
custom_display_name: "Letter"
height_microns: 279400
name: "NA_LETTER"
width_microns: 215900
Tabloid:
height_microns: 431800
name: "NA_LEDGER"
width_microns: 279400
custom_display_name: "Tabloid"
wrapWebContents = (webContents) ->
# webContents is an EventEmitter.
webContents.__proto__ = EventEmitter.prototype
# WebContents::send(channel, args..)
webContents.send = (channel, args...) ->
@_send channel, [args...]
# Make sure webContents.executeJavaScript would run the code only when the
# web contents has been loaded.
webContents.executeJavaScript = (code, hasUserGesture=false) ->
if @getUrl() and not @isLoading()
@_executeJavaScript code, hasUserGesture
else
webContents.once 'did-finish-load', @_executeJavaScript.bind(this, code, hasUserGesture)
# The navigation controller.
controller = new NavigationController(webContents)
for name, method of NavigationController.prototype when method instanceof Function
do (name, method) ->
webContents[name] = -> method.apply controller, arguments
# Dispatch IPC messages to the ipc module.
webContents.on 'ipc-message', (event, packed) ->
[channel, args...] = packed
ipc.emit channel, event, args...
webContents.on 'ipc-message-sync', (event, packed) ->
[channel, args...] = packed
Object.defineProperty event, 'returnValue', set: (value) -> event.sendReply JSON.stringify(value)
ipc.emit channel, event, args...
# Handle context menu action request from pepper plugin.
webContents.on 'pepper-context-menu', (event, params) ->
menu = Menu.buildFromTemplate params.menu
menu.popup params.x, params.y
webContents.printToPDF = (options, callback) ->
printingSetting =
pageRage: []
mediaSize: {}
landscape: false
color: 2
headerFooterEnabled: false
marginsType: 0
isFirstRequest: false
requestID: getNextId()
previewModifiable: true
printToPDF: true
printWithCloudPrint: false
printWithPrivet: false
printWithExtension: false
deviceName: "Save as PDF"
generateDraftData: true
fitToPageEnabled: false
duplex: 0
copies: 1
collate: true
shouldPrintBackgrounds: false
shouldPrintSelectionOnly: false
if options.landscape
printingSetting.landscape = options.landscape
if options.marginsType
printingSetting.marginsType = options.marginsType
if options.printSelectionOnly
printingSetting.shouldPrintSelectionOnly = options.printSelectionOnly
if options.printBackground
printingSetting.shouldPrintBackgrounds = options.printBackground
if options.pageSize and PDFPageSize[options.pageSize]
printingSetting.mediaSize = PDFPageSize[options.pageSize]
else
printingSetting.mediaSize = PDFPageSize['A4']
@_printToPDF printingSetting, callback
binding._setWrapWebContents wrapWebContents
module.exports.create = (options={}) ->
binding.create(options)