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handle different page size in pdf viewer

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This commit is contained in:
Brian Gough 2015-01-20 14:28:14 +00:00
parent c9e019b4a7
commit f18f862be2
3 changed files with 22 additions and 2 deletions
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1
services/web/public/coffee/ide/pdfng/directives/pdfPage.coffee
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@ -38,6 +38,7 @@ define [
text: textElement
annotations: annotationsElement
highlights: highlightsElement
container: element
}
if !scope.page.sized

11
services/web/public/coffee/ide/pdfng/directives/pdfRenderer.coffee
View file

@ -25,6 +25,7 @@ define [
pdfDocument.getDownloadInfo().then () =>
@options.loadedCallback()
@errorCallback = @options.errorCallback
@pageSizeChangeCallback = @options.pageSizeChangeCallback
@pdfjs.catch (exception) =>
# console.log 'ERROR in get document', exception
@errorCallback(exception)
@ -216,8 +217,14 @@ define [
canvas.height(newHeight + 'px')
canvas.width(newWidth + 'px')
element.canvas.height(newHeight)
element.canvas.width(newWidth)
oldHeight = element.canvas.height()
oldWidth = element.canvas.width()
if newHeight != oldHeight or newWidth != oldWidth
element.canvas.height(newHeight + 'px')
element.canvas.width(newWidth + 'px')
element.container.height(newHeight + 'px')
element.container.width(newWidth + 'px')
@pageSizeChangeCallback?(pagenum, newHeight - oldHeight)
if pixelRatio != 1
ctx.scale(pixelRatio, pixelRatio)

12
services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee
View file

@ -40,6 +40,8 @@ define [
errorCallback: (error) ->
Raven.captureMessage?('pdfng error ' + error)
$scope.$emit 'pdf:error', error
pageSizeChangeCallback: (pageNum, deltaH) ->
$scope.$broadcast 'pdf:page:size-change', pageNum, deltaH
})
# we will have all the main information needed to start display
@ -336,6 +338,16 @@ define [
# trigger a redraw
scope.scale = angular.copy (scope.scale)
scope.$on 'pdf:page:size-change', (event, pageNum, delta) ->
#console.log 'page size change event', pageNum, delta
origposition = angular.copy scope.position
#console.log 'orig position', JSON.stringify(origposition)
if pageNum - 1 < origposition.page && delta != 0
currentScrollTop = element.scrollTop()
console.log 'adjusting scroll from', currentScrollTop, 'by', delta
scope.adjustingScroll = true
element.scrollTop(currentScrollTop + delta)
element.on 'scroll', () ->
#console.log 'scroll event', element.scrollTop(), 'adjusting?', scope.adjustingScroll
#scope.scrollPosition = element.scrollTop()