Migrate to block comments
This commit is contained in:
Kevin Sawicki
parent
630cd091a0
commit
403870a27e
44 changed files with 538 additions and 437 deletions
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@ -4,14 +4,16 @@ webViewConstants = require './web-view-constants'
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{remote} = require 'electron'
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# Helper function to resolve url set in attribute.
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### Helper function to resolve url set in attribute. ###
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a = document.createElement 'a'
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resolveURL = (url) ->
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a.href = url
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a.href
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# Attribute objects.
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# Default implementation of a WebView attribute.
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###
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Attribute objects.
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Default implementation of a WebView attribute.
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###
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class WebViewAttribute
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constructor: (name, webViewImpl) ->
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@name = name
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@ -20,29 +22,29 @@ class WebViewAttribute
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@defineProperty()
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# Retrieves and returns the attribute's value.
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### Retrieves and returns the attribute's value. ###
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getValue: -> @webViewImpl.webviewNode.getAttribute(@name) || ''
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# Sets the attribute's value.
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### Sets the attribute's value. ###
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setValue: (value) -> @webViewImpl.webviewNode.setAttribute(@name, value || '')
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# Changes the attribute's value without triggering its mutation handler.
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### Changes the attribute's value without triggering its mutation handler. ###
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setValueIgnoreMutation: (value) ->
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@ignoreMutation = true
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@setValue value
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@ignoreMutation = false
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# Defines this attribute as a property on the webview node.
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### Defines this attribute as a property on the webview node. ###
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defineProperty: ->
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Object.defineProperty @webViewImpl.webviewNode, @name,
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get: => @getValue()
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set: (value) => @setValue value
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enumerable: true
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# Called when the attribute's value changes.
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### Called when the attribute's value changes. ###
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handleMutation: ->
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# An attribute that is treated as a Boolean.
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### An attribute that is treated as a Boolean. ###
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class BooleanAttribute extends WebViewAttribute
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constructor: (name, webViewImpl) ->
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super name, webViewImpl
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@ -55,7 +57,7 @@ class BooleanAttribute extends WebViewAttribute
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else
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@webViewImpl.webviewNode.setAttribute @name, ''
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# Attribute that specifies whether transparency is allowed in the webview.
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### Attribute that specifies whether transparency is allowed in the webview. ###
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class AllowTransparencyAttribute extends BooleanAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY, webViewImpl
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@ -64,7 +66,7 @@ class AllowTransparencyAttribute extends BooleanAttribute
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return unless @webViewImpl.guestInstanceId
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guestViewInternal.setAllowTransparency @webViewImpl.guestInstanceId, @getValue()
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# Attribute used to define the demension limits of autosizing.
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### Attribute used to define the demension limits of autosizing. ###
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class AutosizeDimensionAttribute extends WebViewAttribute
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constructor: (name, webViewImpl) ->
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super name, webViewImpl
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@ -82,14 +84,14 @@ class AutosizeDimensionAttribute extends WebViewAttribute
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width: parseInt @webViewImpl.attributes[webViewConstants.ATTRIBUTE_MAXWIDTH].getValue() || 0
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height: parseInt @webViewImpl.attributes[webViewConstants.ATTRIBUTE_MAXHEIGHT].getValue() || 0
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# Attribute that specifies whether the webview should be autosized.
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### Attribute that specifies whether the webview should be autosized. ###
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class AutosizeAttribute extends BooleanAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_AUTOSIZE, webViewImpl
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handleMutation: AutosizeDimensionAttribute::handleMutation
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# Attribute representing the state of the storage partition.
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### Attribute representing the state of the storage partition. ###
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class PartitionAttribute extends WebViewAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_PARTITION, webViewImpl
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@ -98,7 +100,7 @@ class PartitionAttribute extends WebViewAttribute
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handleMutation: (oldValue, newValue) ->
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newValue = newValue || ''
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# The partition cannot change if the webview has already navigated.
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### The partition cannot change if the webview has already navigated. ###
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unless @webViewImpl.beforeFirstNavigation
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window.console.error webViewConstants.ERROR_MSG_ALREADY_NAVIGATED
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@setValueIgnoreMutation oldValue
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@ -108,7 +110,7 @@ class PartitionAttribute extends WebViewAttribute
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@validPartitionId = false
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window.console.error webViewConstants.ERROR_MSG_INVALID_PARTITION_ATTRIBUTE
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# Attribute that handles the location and navigation of the webview.
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### Attribute that handles the location and navigation of the webview. ###
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class SrcAttribute extends WebViewAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_SRC, webViewImpl
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@ -122,28 +124,36 @@ class SrcAttribute extends WebViewAttribute
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setValueIgnoreMutation: (value) ->
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WebViewAttribute::setValueIgnoreMutation.call(this, value)
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# takeRecords() is needed to clear queued up src mutations. Without it, it
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# is possible for this change to get picked up asyncronously by src's
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# mutation observer |observer|, and then get handled even though we do not
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# want to handle this mutation.
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###
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takeRecords() is needed to clear queued up src mutations. Without it, it
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is possible for this change to get picked up asyncronously by src's
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mutation observer |observer|, and then get handled even though we do not
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want to handle this mutation.
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###
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@observer.takeRecords()
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handleMutation: (oldValue, newValue) ->
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# Once we have navigated, we don't allow clearing the src attribute.
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# Once <webview> enters a navigated state, it cannot return to a
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# placeholder state.
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###
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Once we have navigated, we don't allow clearing the src attribute.
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Once <webview> enters a navigated state, it cannot return to a
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placeholder state.
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###
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if not newValue and oldValue
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# src attribute changes normally initiate a navigation. We suppress
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# the next src attribute handler call to avoid reloading the page
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# on every guest-initiated navigation.
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###
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src attribute changes normally initiate a navigation. We suppress
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the next src attribute handler call to avoid reloading the page
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on every guest-initiated navigation.
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###
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@setValueIgnoreMutation oldValue
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return
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@parse()
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# The purpose of this mutation observer is to catch assignment to the src
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# attribute without any changes to its value. This is useful in the case
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# where the webview guest has crashed and navigating to the same address
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# spawns off a new process.
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###
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The purpose of this mutation observer is to catch assignment to the src
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attribute without any changes to its value. This is useful in the case
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where the webview guest has crashed and navigating to the same address
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spawns off a new process.
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###
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setupMutationObserver: ->
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@observer = new MutationObserver (mutations) =>
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for mutation in mutations
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@ -169,7 +179,7 @@ class SrcAttribute extends WebViewAttribute
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@webViewImpl.createGuest()
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return
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# Navigate to |this.src|.
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### Navigate to |this.src|. ###
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opts = {}
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httpreferrer = @webViewImpl.attributes[webViewConstants.ATTRIBUTE_HTTPREFERRER].getValue()
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if httpreferrer then opts.httpReferrer = httpreferrer
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@ -180,17 +190,17 @@ class SrcAttribute extends WebViewAttribute
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guestContents = remote.getGuestWebContents(@webViewImpl.guestInstanceId)
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guestContents.loadURL @getValue(), opts
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# Attribute specifies HTTP referrer.
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### Attribute specifies HTTP referrer. ###
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class HttpReferrerAttribute extends WebViewAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_HTTPREFERRER, webViewImpl
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# Attribute specifies user agent
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### Attribute specifies user agent ###
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class UserAgentAttribute extends WebViewAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_USERAGENT, webViewImpl
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# Attribute that set preload script.
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### Attribute that set preload script. ###
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class PreloadAttribute extends WebViewAttribute
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constructor: (webViewImpl) ->
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super webViewConstants.ATTRIBUTE_PRELOAD, webViewImpl
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@ -204,7 +214,7 @@ class PreloadAttribute extends WebViewAttribute
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preload = ''
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preload
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# Sets up all of the webview attributes.
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### Sets up all of the webview attributes. ###
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WebViewImpl::setupWebViewAttributes = ->
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@attributes = {}
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@ -1,5 +1,5 @@
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module.exports =
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# Attributes.
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### Attributes. ###
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ATTRIBUTE_ALLOWTRANSPARENCY: 'allowtransparency'
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ATTRIBUTE_AUTOSIZE: 'autosize'
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ATTRIBUTE_MAXHEIGHT: 'maxheight'
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@ -17,10 +17,10 @@ module.exports =
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ATTRIBUTE_PRELOAD: 'preload'
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ATTRIBUTE_USERAGENT: 'useragent'
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# Internal attribute.
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### Internal attribute. ###
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ATTRIBUTE_INTERNALINSTANCEID: 'internalinstanceid'
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# Error messages.
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### Error messages. ###
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ERROR_MSG_ALREADY_NAVIGATED: 'The object has already navigated, so its partition cannot be changed.'
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ERROR_MSG_CANNOT_INJECT_SCRIPT: '<webview>: ' +
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'Script cannot be injected into content until the page has loaded.'
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@ -4,11 +4,11 @@ v8Util = process.atomBinding 'v8_util'
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guestViewInternal = require './guest-view-internal'
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webViewConstants = require './web-view-constants'
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# ID generator.
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### ID generator. ###
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nextId = 0
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getNextId = -> ++nextId
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# Represents the internal state of the WebView node.
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### Represents the internal state of the WebView node. ###
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class WebViewImpl
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constructor: (@webviewNode) ->
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v8Util.setHiddenValue @webviewNode, 'internal', this
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@ -17,7 +17,7 @@ class WebViewImpl
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@beforeFirstNavigation = true
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# on* Event handlers.
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### on* Event handlers. ###
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@on = {}
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@browserPluginNode = @createBrowserPluginNode()
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@ -30,20 +30,24 @@ class WebViewImpl
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shadowRoot.appendChild @browserPluginNode
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createBrowserPluginNode: ->
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# We create BrowserPlugin as a custom element in order to observe changes
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# to attributes synchronously.
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###
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We create BrowserPlugin as a custom element in order to observe changes
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to attributes synchronously.
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###
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browserPluginNode = new WebViewImpl.BrowserPlugin()
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v8Util.setHiddenValue browserPluginNode, 'internal', this
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browserPluginNode
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# Resets some state upon reattaching <webview> element to the DOM.
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### Resets some state upon reattaching <webview> element to the DOM. ###
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reset: ->
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# If guestInstanceId is defined then the <webview> has navigated and has
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# already picked up a partition ID. Thus, we need to reset the initialization
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# state. However, it may be the case that beforeFirstNavigation is false BUT
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# guestInstanceId has yet to be initialized. This means that we have not
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# heard back from createGuest yet. We will not reset the flag in this case so
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# that we don't end up allocating a second guest.
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###
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If guestInstanceId is defined then the <webview> has navigated and has
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already picked up a partition ID. Thus, we need to reset the initialization
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state. However, it may be the case that beforeFirstNavigation is false BUT
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guestInstanceId has yet to be initialized. This means that we have not
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heard back from createGuest yet. We will not reset the flag in this case so
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that we don't end up allocating a second guest.
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###
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if @guestInstanceId
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guestViewInternal.destroyGuest @guestInstanceId
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@webContents = null
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@ -52,34 +56,38 @@ class WebViewImpl
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@attributes[webViewConstants.ATTRIBUTE_PARTITION].validPartitionId = true
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@internalInstanceId = 0
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# Sets the <webview>.request property.
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### Sets the <webview>.request property. ###
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setRequestPropertyOnWebViewNode: (request) ->
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Object.defineProperty @webviewNode, 'request', value: request, enumerable: true
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setupFocusPropagation: ->
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unless @webviewNode.hasAttribute 'tabIndex'
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# <webview> needs a tabIndex in order to be focusable.
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# TODO(fsamuel): It would be nice to avoid exposing a tabIndex attribute
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# to allow <webview> to be focusable.
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# See http://crbug.com/231664.
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###
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<webview> needs a tabIndex in order to be focusable.
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TODO(fsamuel): It would be nice to avoid exposing a tabIndex attribute
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to allow <webview> to be focusable.
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See http://crbug.com/231664.
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###
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@webviewNode.setAttribute 'tabIndex', -1
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@webviewNode.addEventListener 'focus', (e) =>
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# Focus the BrowserPlugin when the <webview> takes focus.
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### Focus the BrowserPlugin when the <webview> takes focus. ###
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@browserPluginNode.focus()
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@webviewNode.addEventListener 'blur', (e) =>
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# Blur the BrowserPlugin when the <webview> loses focus.
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### Blur the BrowserPlugin when the <webview> loses focus. ###
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@browserPluginNode.blur()
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# This observer monitors mutations to attributes of the <webview> and
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# updates the BrowserPlugin properties accordingly. In turn, updating
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# a BrowserPlugin property will update the corresponding BrowserPlugin
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# attribute, if necessary. See BrowserPlugin::UpdateDOMAttribute for more
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# details.
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###
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This observer monitors mutations to attributes of the <webview> and
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updates the BrowserPlugin properties accordingly. In turn, updating
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a BrowserPlugin property will update the corresponding BrowserPlugin
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attribute, if necessary. See BrowserPlugin::UpdateDOMAttribute for more
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details.
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###
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handleWebviewAttributeMutation: (attributeName, oldValue, newValue) ->
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if not @attributes[attributeName] or @attributes[attributeName].ignoreMutation
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return
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# Let the changed attribute handle its own mutation;
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### Let the changed attribute handle its own mutation; ###
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@attributes[attributeName].handleMutation oldValue, newValue
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handleBrowserPluginAttributeMutation: (attributeName, oldValue, newValue) ->
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@ -87,7 +95,7 @@ class WebViewImpl
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@browserPluginNode.removeAttribute webViewConstants.ATTRIBUTE_INTERNALINSTANCEID
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@internalInstanceId = parseInt newValue
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# Track when the element resizes using the element resize callback.
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### Track when the element resizes using the element resize callback. ###
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webFrame.registerElementResizeCallback @internalInstanceId, @onElementResize.bind(this)
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return unless @guestInstanceId
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@ -103,8 +111,8 @@ class WebViewImpl
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width = node.offsetWidth
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height = node.offsetHeight
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# Check the current bounds to make sure we do not resize <webview>
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# outside of current constraints.
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### Check the current bounds to make sure we do not resize <webview> ###
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### outside of current constraints. ###
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maxWidth = @attributes[webViewConstants.ATTRIBUTE_MAXWIDTH].getValue() | width
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maxHeight = @attributes[webViewConstants.ATTRIBUTE_MAXHEIGHT].getValue() | width
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minWidth = @attributes[webViewConstants.ATTRIBUTE_MINWIDTH].getValue() | width
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@ -120,12 +128,14 @@ class WebViewImpl
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newHeight <= maxHeight)
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node.style.width = newWidth + 'px'
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node.style.height = newHeight + 'px'
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# Only fire the DOM event if the size of the <webview> has actually
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# changed.
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###
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Only fire the DOM event if the size of the <webview> has actually
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changed.
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###
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@dispatchEvent webViewEvent
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onElementResize: (newSize) ->
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# Dispatch the 'resize' event.
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### Dispatch the 'resize' event. ###
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resizeEvent = new Event('resize', bubbles: true)
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resizeEvent.newWidth = newSize.width
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resizeEvent.newHeight = newSize.height
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@ -141,8 +151,8 @@ class WebViewImpl
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dispatchEvent: (webViewEvent) ->
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@webviewNode.dispatchEvent webViewEvent
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# Adds an 'on<event>' property on the webview, which can be used to set/unset
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# an event handler.
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### Adds an 'on<event>' property on the webview, which can be used to set/unset ###
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### an event handler. ###
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setupEventProperty: (eventName) ->
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propertyName = 'on' + eventName.toLowerCase()
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Object.defineProperty @webviewNode, propertyName,
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@ -155,14 +165,16 @@ class WebViewImpl
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@webviewNode.addEventListener eventName, value
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enumerable: true
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# Updates state upon loadcommit.
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### Updates state upon loadcommit. ###
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onLoadCommit: (webViewEvent) ->
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oldValue = @webviewNode.getAttribute webViewConstants.ATTRIBUTE_SRC
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newValue = webViewEvent.url
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if webViewEvent.isMainFrame and (oldValue != newValue)
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# Touching the src attribute triggers a navigation. To avoid
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# triggering a page reload on every guest-initiated navigation,
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# we do not handle this mutation
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###
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Touching the src attribute triggers a navigation. To avoid
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triggering a page reload on every guest-initiated navigation,
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we do not handle this mutation.
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###
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@attributes[webViewConstants.ATTRIBUTE_SRC].setValueIgnoreMutation newValue
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onAttach: (storagePartitionId) ->
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@ -174,11 +186,13 @@ class WebViewImpl
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userAgentOverride: @userAgentOverride
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for own attributeName, attribute of @attributes
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params[attributeName] = attribute.getValue()
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# When the WebView is not participating in layout (display:none)
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# then getBoundingClientRect() would report a width and height of 0.
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# However, in the case where the WebView has a fixed size we can
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# use that value to initially size the guest so as to avoid a relayout of
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# the on display:block.
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###
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When the WebView is not participating in layout (display:none)
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then getBoundingClientRect() would report a width and height of 0.
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However, in the case where the WebView has a fixed size we can
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use that value to initially size the guest so as to avoid a relayout of
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the on display:block.
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###
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css = window.getComputedStyle @webviewNode, null
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elementRect = @webviewNode.getBoundingClientRect()
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params.elementWidth = parseInt(elementRect.width) ||
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@ -194,14 +208,14 @@ class WebViewImpl
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guestViewInternal.attachGuest @internalInstanceId, @guestInstanceId, @buildParams()
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# Registers browser plugin <object> custom element.
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### Registers browser plugin <object> custom element. ###
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registerBrowserPluginElement = ->
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proto = Object.create HTMLObjectElement.prototype
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proto.createdCallback = ->
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@setAttribute 'type', 'application/browser-plugin'
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@setAttribute 'id', 'browser-plugin-' + getNextId()
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# The <object> node fills in the <webview> container.
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### The <object> node fills in the <webview> container. ###
|
||||
@style.display = 'block'
|
||||
@style.width = '100%'
|
||||
@style.height = '100%'
|
||||
|
|
@ -212,7 +226,7 @@ registerBrowserPluginElement = ->
|
|||
internal.handleBrowserPluginAttributeMutation name, oldValue, newValue
|
||||
|
||||
proto.attachedCallback = ->
|
||||
# Load the plugin immediately.
|
||||
### Load the plugin immediately. ###
|
||||
unused = this.nonExistentAttribute
|
||||
|
||||
WebViewImpl.BrowserPlugin = webFrame.registerEmbedderCustomElement 'browserplugin',
|
||||
|
|
@ -223,7 +237,7 @@ registerBrowserPluginElement = ->
|
|||
delete proto.detachedCallback
|
||||
delete proto.attributeChangedCallback
|
||||
|
||||
# Registers <webview> custom element.
|
||||
### Registers <webview> custom element. ###
|
||||
registerWebViewElement = ->
|
||||
proto = Object.create HTMLObjectElement.prototype
|
||||
|
||||
|
|
@ -250,7 +264,7 @@ registerWebViewElement = ->
|
|||
internal.elementAttached = true
|
||||
internal.attributes[webViewConstants.ATTRIBUTE_SRC].parse()
|
||||
|
||||
# Public-facing API methods.
|
||||
### Public-facing API methods. ###
|
||||
methods = [
|
||||
'getURL'
|
||||
'getTitle'
|
||||
|
|
@ -304,7 +318,7 @@ registerWebViewElement = ->
|
|||
'insertCSS'
|
||||
]
|
||||
|
||||
# Forward proto.foo* method calls to WebViewImpl.foo*.
|
||||
### Forward proto.foo* method calls to WebViewImpl.foo*. ###
|
||||
createBlockHandler = (m) ->
|
||||
(args...) ->
|
||||
internal = v8Util.getHiddenValue this, 'internal'
|
||||
|
|
@ -318,14 +332,14 @@ registerWebViewElement = ->
|
|||
|
||||
proto[m] = createNonBlockHandler m for m in nonblockMethods
|
||||
|
||||
# Deprecated.
|
||||
### Deprecated. ###
|
||||
deprecate.rename proto, 'getUrl', 'getURL'
|
||||
|
||||
window.WebView = webFrame.registerEmbedderCustomElement 'webview',
|
||||
prototype: proto
|
||||
|
||||
# Delete the callbacks so developers cannot call them and produce unexpected
|
||||
# behavior.
|
||||
### Delete the callbacks so developers cannot call them and produce unexpected ###
|
||||
### behavior. ###
|
||||
delete proto.createdCallback
|
||||
delete proto.attachedCallback
|
||||
delete proto.detachedCallback
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue