mirror of
https://github.com/overleaf/overleaf.git
synced 2024-12-28 20:52:02 +00:00
129 lines
4.2 KiB
CoffeeScript
129 lines
4.2 KiB
CoffeeScript
define [
|
|
"base"
|
|
], (App) ->
|
|
# App = angular.module 'pdfPage', ['pdfHighlights']
|
|
|
|
App.directive 'pdfPage', ['$timeout', 'pdfHighlights', ($timeout, pdfHighlights) ->
|
|
{
|
|
require: '^pdfViewer',
|
|
template: '''
|
|
<div class="plv-page-view page-view">
|
|
<div class="pdf-canvas pdfng-empty"></div>
|
|
<div class="plv-text-layer text-layer"></div>
|
|
<div class="plv-annotations-layer annotations-layer"></div>
|
|
<div class="plv-highlights-layer highlights-layer"></div>
|
|
</div>
|
|
'''
|
|
link: (scope, element, attrs, ctrl) ->
|
|
canvasElement = $(element).find('.pdf-canvas')
|
|
textElement = $(element).find('.text-layer')
|
|
annotationsElement = $(element).find('.annotations-layer')
|
|
highlightsElement = $(element).find('.highlights-layer')
|
|
|
|
updatePageSize = (size) ->
|
|
h = Math.floor(size[0])
|
|
w = Math.floor(size[1])
|
|
element.height(h)
|
|
element.width(w)
|
|
canvasElement.height(h)
|
|
canvasElement.width(w)
|
|
scope.page.sized = true
|
|
|
|
isVisible = (containerSize) ->
|
|
elemTop = element.offset().top - containerSize[2]
|
|
elemBottom = elemTop + element.innerHeight()
|
|
visible = (elemTop < containerSize[1] and elemBottom > 0)
|
|
scope.page.visible = visible
|
|
scope.page.elemTop = elemTop
|
|
scope.page.elemBottom = elemBottom
|
|
return visible
|
|
|
|
renderPage = () ->
|
|
scope.document.renderPage {
|
|
canvas: canvasElement,
|
|
text: textElement
|
|
annotations: annotationsElement
|
|
highlights: highlightsElement
|
|
}, scope.page.pageNum
|
|
|
|
pausePage = () ->
|
|
scope.document.pause {
|
|
canvas: canvasElement,
|
|
text: textElement
|
|
}, scope.page.pageNum
|
|
|
|
# keep track of our page element, so we can access it in the
|
|
# parent with scope.pages[i].element
|
|
scope.page.element = element
|
|
|
|
if (!scope.page.sized && scope.defaultPageSize)
|
|
updatePageSize scope.defaultPageSize
|
|
|
|
if scope.page.current
|
|
# console.log 'we must scroll to this page', scope.page.pageNum, 'at position', scope.page.position
|
|
renderPage()
|
|
# this is the current page, we want to scroll it into view
|
|
ctrl.setPdfPosition(scope.page, scope.page.position)
|
|
|
|
scope.$watch 'defaultPageSize', (defaultPageSize) ->
|
|
return unless defaultPageSize?
|
|
updatePageSize defaultPageSize
|
|
|
|
watchHandle = scope.$watch 'containerSize', (containerSize, oldVal) ->
|
|
return unless containerSize?
|
|
return unless scope.page.sized
|
|
oldVisible = scope.page.visible
|
|
newVisible = isVisible containerSize
|
|
scope.page.visible = newVisible
|
|
if newVisible && !oldVisible
|
|
renderPage()
|
|
# TODO deregister this listener after the page is rendered
|
|
#watchHandle()
|
|
else if !newVisible && oldVisible
|
|
pausePage()
|
|
|
|
element.on 'dblclick', (e) ->
|
|
offset = $(element).find('.pdf-canvas').offset()
|
|
dx = e.pageX - offset.left
|
|
dy = e.pageY - offset.top
|
|
scope.document.getPdfViewport(scope.page.pageNum).then (viewport) ->
|
|
pdfPoint = viewport.convertToPdfPoint(dx, dy);
|
|
event = {
|
|
page: scope.page.pageNum
|
|
x: pdfPoint[0],
|
|
y: viewport.viewBox[3] - pdfPoint[1]
|
|
}
|
|
scope.$emit 'pdfDoubleClick', event
|
|
|
|
highlightsLayer = new pdfHighlights({
|
|
highlights: highlightsElement
|
|
})
|
|
|
|
scope.$watch 'highlights', (highlights, oldVal) ->
|
|
return unless highlights?
|
|
return unless highlights.length > 0
|
|
if scope.timeoutHandler
|
|
$timeout.cancel(scope.timeoutHandler)
|
|
highlightsLayer.clearHighlights()
|
|
scope.timeoutHandler
|
|
|
|
# console.log 'got highlight watch in pdfPage', scope.page
|
|
pageHighlights = (h for h in highlights when h.page == scope.page.pageNum)
|
|
return unless pageHighlights.length
|
|
scope.document.getPdfViewport(scope.page.pageNum).then (viewport) ->
|
|
for hl in pageHighlights
|
|
# console.log 'adding highlight', h, viewport
|
|
top = viewport.viewBox[3] - hl.v
|
|
highlightsLayer.addHighlight viewport, hl.h, top, hl.width, hl.height
|
|
scope.timeoutHandler = $timeout () ->
|
|
highlightsLayer.clearHighlights()
|
|
scope.timeoutHandler = null
|
|
, 1000
|
|
|
|
scope.$on "$destroy", () ->
|
|
if scope.timeoutHandler?
|
|
$timeout.cancel(scope.timeoutHandler)
|
|
highlightsLayer.clearHighlights()
|
|
|
|
}
|
|
]
|