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defer loading of pdf destinations until required

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This commit is contained in:
Brian Gough 2014-12-09 13:43:25 +00:00
parent 1e2e1ecb9c
commit b157323eb7
2 changed files with 16 additions and 7 deletions
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13
services/web/public/coffee/ide/pdfng/directives/pdfRenderer.coffee
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@ -47,6 +47,19 @@ define [
@document.then (pdfDocument) ->
pdfDocument.getDestinations()
# Not available in pdf.js-1.0.712, in later versions there is a direct
# call for this - we should use it as soon as it is available in a
# stable version
getDestination: (dest) ->
@destinations = @document.then (pdfDocument) ->
pdfDocument.getDestinations()
return @destinations.then (all) ->
all[dest]
@document.then (pdfDocument) ->
pdfDocument.getDestination(dest)
getPageIndex: (ref) ->
@document.then (pdfDocument) ->
pdfDocument.getPageIndex(ref).then (idx) ->

10
services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee
View file

@ -38,7 +38,6 @@ define [
# after the following promise is resolved
$scope.loaded = $q.all({
numPages: $scope.document.getNumPages()
destinations: $scope.document.getDestinations()
# get size of first page as default @ scale 1
pdfViewport: $scope.document.getPdfViewport 1, 1
}).then (result) ->
@ -47,7 +46,6 @@ define [
result.pdfViewport.height,
result.pdfViewport.width
]
$scope.destinations = result.destinations
# console.log 'resolved q.all, page size is', result
$scope.numPages = result.numPages
$scope.$emit "loaded"
@ -365,11 +363,9 @@ define [
scope.navigateTo = undefined
# console.log 'navigate to', newVal
# console.log 'look up page num'
scope.loaded.then () ->
# console.log 'destinations are', scope.destinations
r = scope.destinations[newVal.dest]
# console.log 'need to go to', r
# console.log 'page ref is', r[0]
scope.document.getDestination(newVal.dest).then (r) ->
console.log 'need to go to', r
console.log 'page ref is', r[0]
scope.document.getPageIndex(r[0]).then (pidx) ->
# console.log 'page num is', pidx
page = scope.pages[pidx]