@ -113,10 +113,12 @@ module.exports = pdfjsLib;
@@ -113,10 +113,12 @@ module.exports = pdfjsLib;
Object . defineProperty ( exports , "__esModule" , {
value : true
} ) ;
exports . localized = exports . animationStarted = exports . normalizeWheelEventDelta = exports . binarySearchFirstItem = exports . watchScroll = exports . scrollIntoView = exports . getOutputScale = exports . approximateFraction = exports . roundToDivide = exports . getVisibleElements = exports . parseQueryString = exports . noContextMenuHandler = exports . getPDFFileNameFromURL = exports . ProgressBar = exports . EventBus = exports . NullL10n = exports . mozL10n = exports . RendererType = exports . cloneObj = exports . VERTICAL _PADDING = exports . SCROLLBAR _PADDING = exports . MAX _AUTO _SCALE = exports . UNKNOWN _SCALE = exports . MAX _SCALE = exports . MIN _SCALE = exports . DEFAULT _SCALE = exports . DEFAULT _SCALE _VALUE = exports . CSS _UNITS = undefined ;
exports . waitOnEventOrTimeout = exports . WaitOnType = exports . localized = exports . animationStarted = exports . normalizeWheelEventDelta = exports . binarySearchFirstItem = exports . watchScroll = exports . scrollIntoView = exports . getOutputScale = exports . approximateFraction = exports . roundToDivide = exports . getVisibleElements = exports . parseQueryString = exports . noContextMenuHandler = exports . getPDFFileNameFromURL = exports . ProgressBar = exports . EventBus = exports . NullL10n = exports . mozL10n = exports . RendererType = exports . cloneObj = exports . VERTICAL _PADDING = exports . SCROLLBAR _PADDING = exports . MAX _AUTO _SCALE = exports . UNKNOWN _SCALE = exports . MAX _SCALE = exports . MIN _SCALE = exports . DEFAULT _SCALE = exports . DEFAULT _SCALE _VALUE = exports . CSS _UNITS = undefined ;
var _createClass = function ( ) { function defineProperties ( target , props ) { for ( var i = 0 ; i < props . length ; i ++ ) { var descriptor = props [ i ] ; descriptor . enumerable = descriptor . enumerable || false ; descriptor . configurable = true ; if ( "value" in descriptor ) descriptor . writable = true ; Object . defineProperty ( target , descriptor . key , descriptor ) ; } } return function ( Constructor , protoProps , staticProps ) { if ( protoProps ) defineProperties ( Constructor . prototype , protoProps ) ; if ( staticProps ) defineProperties ( Constructor , staticProps ) ; return Constructor ; } ; } ( ) ;
var _typeof = typeof Symbol === "function" && typeof Symbol . iterator === "symbol" ? function ( obj ) { return typeof obj ; } : function ( obj ) { return obj && typeof Symbol === "function" && obj . constructor === Symbol && obj !== Symbol . prototype ? "symbol" : typeof obj ; } ;
var _pdfjsLib = _ _w _pdfjs _require _ _ ( 0 ) ;
function _classCallCheck ( instance , Constructor ) { if ( ! ( instance instanceof Constructor ) ) { throw new TypeError ( "Cannot call a class as a function" ) ; } }
@ -420,6 +422,41 @@ function cloneObj(obj) {
@@ -420,6 +422,41 @@ function cloneObj(obj) {
}
return result ;
}
var WaitOnType = {
EVENT : 'event' ,
TIMEOUT : 'timeout'
} ;
function waitOnEventOrTimeout ( _ref ) {
var target = _ref . target ,
name = _ref . name ,
_ref$delay = _ref . delay ,
delay = _ref$delay === undefined ? 0 : _ref$delay ;
if ( ( typeof target === 'undefined' ? 'undefined' : _typeof ( target ) ) !== 'object' || ! ( name && typeof name === 'string' ) || ! ( Number . isInteger ( delay ) && delay >= 0 ) ) {
return Promise . reject ( new Error ( 'waitOnEventOrTimeout - invalid paramaters.' ) ) ;
}
var capability = ( 0 , _pdfjsLib . createPromiseCapability ) ( ) ;
function handler ( type ) {
if ( target instanceof EventBus ) {
target . off ( name , eventHandler ) ;
} else {
target . removeEventListener ( name , eventHandler ) ;
}
if ( timeout ) {
clearTimeout ( timeout ) ;
}
capability . resolve ( type ) ;
}
var eventHandler = handler . bind ( null , WaitOnType . EVENT ) ;
if ( target instanceof EventBus ) {
target . on ( name , eventHandler ) ;
} else {
target . addEventListener ( name , eventHandler ) ;
}
var timeoutHandler = handler . bind ( null , WaitOnType . TIMEOUT ) ;
var timeout = setTimeout ( timeoutHandler , delay ) ;
return capability . promise ;
}
var animationStarted = new Promise ( function ( resolve ) {
window . requestAnimationFrame ( resolve ) ;
} ) ;
@ -476,10 +513,10 @@ function clamp(v, min, max) {
@@ -476,10 +513,10 @@ function clamp(v, min, max) {
var ProgressBar = function ( ) {
function ProgressBar ( id ) {
var _ref = arguments . length > 1 && arguments [ 1 ] !== undefined ? arguments [ 1 ] : { } ,
height = _ref . height ,
width = _ref . width ,
units = _ref . units ;
var _ref2 = arguments . length > 1 && arguments [ 1 ] !== undefined ? arguments [ 1 ] : { } ,
height = _ref2 . height ,
width = _ref2 . width ,
units = _ref2 . units ;
_classCallCheck ( this , ProgressBar ) ;
@ -580,6 +617,8 @@ exports.binarySearchFirstItem = binarySearchFirstItem;
@@ -580,6 +617,8 @@ exports.binarySearchFirstItem = binarySearchFirstItem;
exports . normalizeWheelEventDelta = normalizeWheelEventDelta ;
exports . animationStarted = animationStarted ;
exports . localized = localized ;
exports . WaitOnType = WaitOnType ;
exports . waitOnEventOrTimeout = waitOnEventOrTimeout ;
/***/ } ) ,
/* 2 */
@ -792,17 +831,18 @@ var PDFLinkService = function () {
@@ -792,17 +831,18 @@ var PDFLinkService = function () {
console . error ( 'PDFLinkService.navigateTo: "' + pageNumber + '" is not ' + ( 'a valid page number, for dest="' + dest + '".' ) ) ;
return ;
}
_this . pdfViewer . scrollPageIntoView ( {
pageNumber : pageNumber ,
destArray : explicitDest
} ) ;
if ( _this . pdfHistory ) {
_this . pdfHistory . pushCurrentPosition ( ) ;
_this . pdfHistory . push ( {
dest : explicit Dest,
hash : named Dest,
page : pageNumber
namedDest : namedDest ,
explicitDest : explicit Dest,
pageNumber : pageNumber
} ) ;
}
_this . pdfViewer . scrollPageIntoView ( {
pageNumber : pageNumber ,
destArray : explicitDest
} ) ;
} ;
new Promise ( function ( resolve , reject ) {
if ( typeof dest === 'string' ) {
@ -858,9 +898,6 @@ var PDFLinkService = function () {
@@ -858,9 +898,6 @@ var PDFLinkService = function () {
} ) ;
}
if ( 'nameddest' in params ) {
if ( this . pdfHistory ) {
this . pdfHistory . updateNextHashParam ( params . nameddest ) ;
}
this . navigateTo ( params . nameddest ) ;
return ;
}
@ -917,9 +954,6 @@ var PDFLinkService = function () {
@@ -917,9 +954,6 @@ var PDFLinkService = function () {
}
} catch ( ex ) { }
if ( typeof dest === 'string' || isValidExplicitDestination ( dest ) ) {
if ( this . pdfHistory ) {
this . pdfHistory . updateNextHashParam ( dest ) ;
}
this . navigateTo ( dest ) ;
return ;
}
@ -3083,302 +3117,421 @@ exports.PDFViewer = PDFViewer;
@@ -3083,302 +3117,421 @@ exports.PDFViewer = PDFViewer;
Object . defineProperty ( exports , "__esModule" , {
value : true
} ) ;
exports . PDFHistory = undefined ;
exports . isDestsEqual = exports . PDFHistory = undefined ;
var _typeof = typeof Symbol === "function" && typeof Symbol . iterator === "symbol" ? function ( obj ) { return typeof obj ; } : function ( obj ) { return obj && typeof Symbol === "function" && obj . constructor === Symbol && obj !== Symbol . prototype ? "symbol" : typeof obj ; } ;
var _createClass = function ( ) { function defineProperties ( target , props ) { for ( var i = 0 ; i < props . length ; i ++ ) { var descriptor = props [ i ] ; descriptor . enumerable = descriptor . enumerable || false ; descriptor . configurable = true ; if ( "value" in descriptor ) descriptor . writable = true ; Object . defineProperty ( target , descriptor . key , descriptor ) ; } } return function ( Constructor , protoProps , staticProps ) { if ( protoProps ) defineProperties ( Constructor . prototype , protoProps ) ; if ( staticProps ) defineProperties ( Constructor , staticProps ) ; return Constructor ; } ; } ( ) ;
var _ui _utils = _ _w _pdfjs _require _ _ ( 1 ) ;
var _dom _events = _ _w _pdfjs _require _ _ ( 2 ) ;
function PDFHistory ( options ) {
this . linkService = options . linkService ;
this . eventBus = options . eventBus || ( 0 , _dom _events . getGlobalEventBus ) ( ) ;
this . initialized = false ;
this . initialDestination = null ;
this . initialBookmark = null ;
function _classCallCheck ( instance , Constructor ) { if ( ! ( instance instanceof Constructor ) ) { throw new TypeError ( "Cannot call a class as a function" ) ; } }
var HASH _CHANGE _TIMEOUT = 1000 ;
var POSITION _UPDATED _THRESHOLD = 50 ;
var UPDATE _VIEWAREA _TIMEOUT = 2000 ;
function getCurrentHash ( ) {
return document . location . hash ;
}
PDFHistory . prototype = {
initialize : function pdfHistoryInitialize ( fingerprint ) {
this . initialized = true ;
this . reInitialized = false ;
this . allowHashChange = true ;
this . historyUnlocked = true ;
this . isViewerInPresentationMode = false ;
this . previousHash = window . location . hash . substring ( 1 ) ;
this . currentBookmark = '' ;
this . currentPage = 0 ;
this . updatePreviousBookmark = false ;
this . previousBookmark = '' ;
this . previousPage = 0 ;
this . nextHashParam = '' ;
this . fingerprint = fingerprint ;
this . currentUid = this . uid = 0 ;
this . current = { } ;
var state = window . history . state ;
if ( this . _isStateObjectDefined ( state ) ) {
if ( state . target . dest ) {
this . initialDestination = state . target . dest ;
} else {
this . initialBookmark = state . target . hash ;
function parseCurrentHash ( linkService ) {
var hash = unescape ( getCurrentHash ( ) ) . substring ( 1 ) ;
var params = ( 0 , _ui _utils . parseQueryString ) ( hash ) ;
var page = params . page | 0 ;
if ( ! ( Number . isInteger ( page ) && page > 0 && page <= linkService . pagesCount ) ) {
page = null ;
}
return {
hash : hash ,
page : page
} ;
}
var PDFHistory = function ( ) {
function PDFHistory ( _ref ) {
var _this = this ;
var linkService = _ref . linkService ,
eventBus = _ref . eventBus ;
_classCallCheck ( this , PDFHistory ) ;
this . linkService = linkService ;
this . eventBus = eventBus || ( 0 , _dom _events . getGlobalEventBus ) ( ) ;
this . initialized = false ;
this . initialBookmark = null ;
this . _boundEvents = Object . create ( null ) ;
this . _isViewerInPresentationMode = false ;
this . _isPagesLoaded = false ;
this . eventBus . on ( 'presentationmodechanged' , function ( evt ) {
_this . _isViewerInPresentationMode = evt . active || evt . switchInProgress ;
} ) ;
this . eventBus . on ( 'pagesloaded' , function ( evt ) {
_this . _isPagesLoaded = ! ! evt . pagesCount ;
} ) ;
}
_createClass ( PDFHistory , [ {
key : 'initialize' ,
value : function initialize ( fingerprint ) {
var resetHistory = arguments . length > 1 && arguments [ 1 ] !== undefined ? arguments [ 1 ] : false ;
if ( ! fingerprint || typeof fingerprint !== 'string' ) {
console . error ( 'PDFHistory.initialize: The "fingerprint" must be a non-empty string.' ) ;
return ;
}
this . currentUid = state . uid ;
this . uid = state . uid + 1 ;
this . current = state . target ;
} else {
if ( state && state . fingerprint && this . fingerprint !== state . fingerprint ) {
this . reInitialized = true ;
var reInitialized = this . initialized && this . fingerprint !== fingerprint ;
this . fingerprint = fingerprint ;
if ( ! this . initialized ) {
this . _bindEvents ( ) ;
}
var state = window . history . state ;
this . initialized = true ;
this . initialBookmark = null ;
this . _popStateInProgress = false ;
this . _blockHashChange = 0 ;
this . _currentHash = getCurrentHash ( ) ;
this . _numPositionUpdates = 0 ;
this . _currentUid = this . _uid = 0 ;
this . _destination = null ;
this . _position = null ;
if ( ! this . _isValidState ( state ) || resetHistory ) {
var _parseCurrentHash = parseCurrentHash ( this . linkService ) ,
hash = _parseCurrentHash . hash ,
page = _parseCurrentHash . page ;
if ( ! hash || reInitialized || resetHistory ) {
this . _pushOrReplaceState ( null , true ) ;
return ;
}
this . _pushOrReplaceState ( {
hash : hash ,
page : page
} , true ) ;
return ;
}
var destination = state . destination ;
this . _updateInternalState ( destination , state . uid , true ) ;
if ( destination . dest ) {
this . initialBookmark = JSON . stringify ( destination . dest ) ;
this . _destination . page = null ;
} else if ( destination . hash ) {
this . initialBookmark = destination . hash ;
} else if ( destination . page ) {
this . initialBookmark = 'page=' + destination . page ;
}
this . _pushOrReplaceState ( { fingerprint : this . fingerprint } , true ) ;
}
var self = this ;
window . addEventListener ( 'popstate' , function pdfHistoryPopstate ( evt ) {
if ( ! self . historyUnlocked ) {
} , {
key : 'push' ,
value : function push ( _ref2 ) {
var namedDest = _ref2 . namedDest ,
explicitDest = _ref2 . explicitDest ,
pageNumber = _ref2 . pageNumber ;
if ( ! this . initialized ) {
return ;
}
if ( evt . state ) {
self . _goTo ( evt . state ) ;
if ( namedDest && typeof namedDest !== 'string' || ! ( explicitDest instanceof Array ) || ! ( Number . isInteger ( pageNumber ) && pageNumber > 0 && pageNumber <= this . linkService . pagesCount ) ) {
console . error ( 'PDFHistory.push: Invalid parameters.' ) ;
return ;
}
if ( self . uid === 0 ) {
var previousParams = self . previousHash && self . currentBookmark && self . previousHash !== self . currentBookmark ? {
hash : self . currentBookmark ,
page : self . currentPage
} : { page : 1 } ;
replacePreviousHistoryState ( previousParams , function ( ) {
updateHistoryWithCurrentHash ( ) ;
} ) ;
} else {
updateHistoryWithCurrentHash ( ) ;
var hash = namedDest || JSON . stringify ( explicitDest ) ;
if ( ! hash ) {
return ;
}
} ) ;
function updateHistoryWithCurrentHash ( ) {
self . previousHash = window . location . hash . slice ( 1 ) ;
self . _pushToHistory ( { hash : self . previousHash } , false , true ) ;
self . _updatePreviousBookmark ( ) ;
}
function replacePreviousHistoryState ( params , callback ) {
self . historyUnlocked = false ;
self . allowHashChange = false ;
window . addEventListener ( 'popstate' , rewriteHistoryAfterBack ) ;
history . back ( ) ;
function rewriteHistoryAfterBack ( ) {
window . removeEventListener ( 'popstate' , rewriteHistoryAfterBack ) ;
window . addEventListener ( 'popstate' , rewriteHistoryAfterForward ) ;
self . _pushToHistory ( params , false , true ) ;
history . forward ( ) ;
}
function rewriteHistoryAfterForward ( ) {
window . removeEventListener ( 'popstate' , rewriteHistoryAfterForward ) ;
self . allowHashChange = true ;
self . historyUnlocked = true ;
callback ( ) ;
var forceReplace = false ;
if ( this . _destination && ( this . _destination . hash === hash || isDestsEqual ( this . _destination . dest , explicitDest ) ) ) {
if ( this . _destination . page ) {
return ;
}
forceReplace = true ;
}
}
function pdfHistoryBeforeUnload ( ) {
var previousParams = self . _getPreviousParams ( null , true ) ;
if ( previousParams ) {
var replacePrevious = ! self . current . dest && self . current . hash !== self . previousHash ;
self . _pushToHistory ( previousParams , false , replacePrevious ) ;
self . _updatePreviousBookmark ( ) ;
if ( this . _popStateInProgress && ! forceReplace ) {
return ;
}
window . removeEventListener ( 'beforeunload' , pdfHistoryBeforeUnload ) ;
}
window . addEventListener ( 'beforeunload' , pdfHistoryBeforeUnload ) ;
window . addEventListener ( 'pageshow' , function pdfHistoryPageShow ( evt ) {
window . addEventListener ( 'beforeunload' , pdfHistoryBeforeUnload ) ;
} ) ;
self . eventBus . on ( 'presentationmodechanged' , function ( e ) {
self . isViewerInPresentationMode = e . active ;
} ) ;
} ,
clearHistoryState : function pdfHistory _clearHistoryState ( ) {
this . _pushOrReplaceState ( null , true ) ;
} ,
_isStateObjectDefined : function pdfHistory _isStateObjectDefined ( state ) {
return state && state . uid >= 0 && state . fingerprint && this . fingerprint === state . fingerprint && state . target && state . target . hash ? true : false ;
} ,
_pushOrReplaceState : function pdfHistory _pushOrReplaceState ( stateObj , replace ) {
if ( replace ) {
window . history . replaceState ( stateObj , '' , document . URL ) ;
} else {
window . history . pushState ( stateObj , '' , document . URL ) ;
}
} ,
get isHashChangeUnlocked ( ) {
if ( ! this . initialized ) {
return true ;
}
return this . allowHashChange ;
} ,
_updatePreviousBookmark : function pdfHistory _updatePreviousBookmark ( ) {
if ( this . updatePreviousBookmark && this . currentBookmark && this . currentPage ) {
this . previousBookmark = this . currentBookmark ;
this . previousPage = this . currentPage ;
this . updatePreviousBookmark = false ;
}
} ,
updateCurrentBookmark : function pdfHistoryUpdateCurrentBookmark ( bookmark , pageNum ) {
if ( this . initialized ) {
this . currentBookmark = bookmark . substring ( 1 ) ;
this . currentPage = pageNum | 0 ;
this . _updatePreviousBookmark ( ) ;
this . _pushOrReplaceState ( {
dest : explicitDest ,
hash : hash ,
page : pageNumber
} , forceReplace ) ;
}
} ,
updateNextHashParam : function pdfHistoryUpdateNextHashParam ( param ) {
if ( this . initialized ) {
this . nextHashParam = param ;
}
} ,
push : function pdfHistoryPush ( params , isInitialBookmark ) {
if ( ! ( this . initialized && this . historyUnlocked ) ) {
return ;
}
if ( params . dest && ! params . hash ) {
params . hash = this . current . hash && this . current . dest && this . current . dest === params . dest ? this . current . hash : this . linkService . getDestinationHash ( params . dest ) . split ( '#' ) [ 1 ] ;
}
if ( params . page ) {
params . page |= 0 ;
} , {
key : 'pushCurrentPosition' ,
value : function pushCurrentPosition ( ) {
if ( ! this . initialized || this . _popStateInProgress ) {
return ;
}
this . _tryPushCurrentPosition ( ) ;
}
if ( isInitialBookmark ) {
var target = window . history . state . target ;
if ( ! target ) {
this . _pushToHistory ( params , false ) ;
this . p reviousHash = window . loca tion . hash . s ubst ri ng ( 1 ) ;
} , {
key : 'back' ,
value : function back ( ) {
if ( ! this . initialized || this . _popStateInProgress ) {
return ;
}
this . updatePreviousBookmark = this . nextHashParam ? false : tru e;
if ( target ) {
this . _updatePreviousBookmar k( ) ;
var state = window . history . state ;
if ( this . _isValidState ( state ) && state . uid > 0 ) {
window . history . back ( ) ;
}
return ;
}
if ( this . nextHashParam ) {
if ( this . nextHashParam === params . hash ) {
this . nextHashParam = null ;
this . updatePreviousBookmark = true ;
} , {
key : 'forward' ,
value : function forward ( ) {
if ( ! this . initialized || this . _popStateInProgress ) {
return ;
}
this . nextHashParam = null ;
var state = window . history . state ;
if ( this . _isValidState ( state ) && state . uid < this . _uid - 1 ) {
window . history . forward ( ) ;
}
}
if ( params . hash ) {
if ( this . current . hash ) {
if ( this . current . hash !== params . hash ) {
this . _pushToHistory ( params , true ) ;
} else {
if ( ! this . current . page && params . page ) {
this . _pushToHistory ( params , false , true ) ;
}
this . updatePreviousBookmark = true ;
}
} , {
key : '_pushOrReplaceState' ,
value : function _pushOrReplaceState ( destination ) {
var forceReplace = arguments . length > 1 && arguments [ 1 ] !== undefined ? arguments [ 1 ] : false ;
var shouldReplace = forceReplace || ! this . _destination ;
var newState = {
fingerprint : this . fingerprint ,
uid : shouldReplace ? this . _currentUid : this . _uid ,
destination : destination
} ;
this . _updateInternalState ( destination , newState . uid ) ;
if ( shouldReplace ) {
window . history . replaceState ( newState , '' , document . URL ) ;
} else {
this . _pushToHistory ( params , true ) ;
window . history . pushState ( newState , '' , document . URL ) ;
}
} else if ( this . current . page && params . page && this . current . page !== params . page ) {
this . _pushToHistory ( params , true ) ;
}
} ,
_getPreviousParams : function pdfHistory _getPreviousParams ( onlyCheckPage , beforeUnload ) {
if ( ! ( this . currentBookmark && this . currentPage ) ) {
return null ;
} else if ( this . updatePreviousBookmark ) {
this . updatePreviousBookmark = false ;
}
if ( this . uid > 0 && ! ( this . previousBookmark && this . previousPage ) ) {
return null ;
}
if ( ! this . current . dest && ! onlyCheckPage || beforeUnload ) {
if ( this . previousBookmark === this . currentBookmark ) {
return null ;
} , {
key : '_tryPushCurrentPosition' ,
value : function _tryPushCurrentPosition ( ) {
var temporary = arguments . length > 0 && arguments [ 0 ] !== undefined ? arguments [ 0 ] : false ;
if ( ! this . _position ) {
return ;
}
} else if ( this . current . page || onlyCheckPage ) {
if ( this . previousPage === this . currentPage ) {
return null ;
var position = this . _position ;
if ( temporary ) {
position = ( 0 , _ui _utils . cloneObj ) ( this . _position ) ;
position . temporary = true ;
}
} else {
return null ;
}
var params = {
hash : this . currentBookmark ,
page : this . currentPage
} ;
if ( this . isViewerInPresentationMode ) {
params . hash = null ;
}
return params ;
} ,
_stateObj : function pdfHistory _stateObj ( params ) {
return {
fingerprint : this . fingerprint ,
uid : this . uid ,
target : params
} ;
} ,
_pushToHistory : function pdfHistory _pushToHistory ( params , addPrevious , overwrite ) {
if ( ! this . initialized ) {
return ;
if ( ! this . _destination ) {
this . _pushOrReplaceState ( position ) ;
return ;
}
if ( this . _destination . temporary ) {
this . _pushOrReplaceState ( position , true ) ;
return ;
}
if ( this . _destination . hash === position . hash ) {
return ;
}
if ( ! this . _destination . page && ( POSITION _UPDATED _THRESHOLD <= 0 || this . _numPositionUpdates <= POSITION _UPDATED _THRESHOLD ) ) {
return ;
}
var forceReplace = false ;
if ( this . _destination . page === position . first || this . _destination . page === position . page ) {
if ( this . _destination . dest || ! this . _destination . first ) {
return ;
}
forceReplace = true ;
}
this . _pushOrReplaceState ( position , forceReplace ) ;
}
if ( ! params . hash && params . page ) {
params . hash = 'page=' + params . page ;
} , {
key : '_isValidState' ,
value : function _isValidState ( state ) {
if ( ! state ) {
return false ;
}
if ( state . fingerprint !== this . fingerprint ) {
return false ;
}
if ( ! Number . isInteger ( state . uid ) || state . uid < 0 ) {
return false ;
}
if ( state . destination === null || _typeof ( state . destination ) !== 'object' ) {
return false ;
}
return true ;
}
if ( addPrevious && ! overwrite ) {
var previousParams = this . _getPreviousParams ( ) ;
if ( previousParams ) {
var replacePrevious = ! this . current . dest && this . current . hash !== this . previousHash ;
this . _pushToHistory ( previousParams , false , replacePrevious ) ;
} , {
key : '_updateInternalState' ,
value : function _updateInternalState ( destination , uid ) {
var removeTemporary = arguments . length > 2 && arguments [ 2 ] !== undefined ? arguments [ 2 ] : false ;
if ( removeTemporary && destination && destination . temporary ) {
delete destination . temporary ;
}
this . _destination = destination ;
this . _currentUid = uid ;
this . _uid = this . _currentUid + 1 ;
this . _numPositionUpdates = 0 ;
}
this . _pushOrReplaceState ( this . _stateObj ( params ) , overwrite || this . uid === 0 ) ;
this . currentUid = this . uid ++ ;
this . current = params ;
this . updatePreviousBookmark = true ;
} ,
_goTo : function pdfHistory _goTo ( state ) {
if ( ! ( this . initialized && this . historyUnlocked && this . _isStateObjectDefined ( state ) ) ) {
return ;
} , {
key : '_updateViewarea' ,
value : function _updateViewarea ( _ref3 ) {
var _this2 = this ;
var location = _ref3 . location ;
if ( this . _updateViewareaTimeout ) {
clearTimeout ( this . _updateViewareaTimeout ) ;
this . _updateViewareaTimeout = null ;
}
this . _position = {
hash : this . _isViewerInPresentationMode ? 'page=' + location . pageNumber : location . pdfOpenParams . substring ( 1 ) ,
page : this . linkService . page ,
first : location . pageNumber
} ;
if ( this . _popStateInProgress ) {
return ;
}
if ( POSITION _UPDATED _THRESHOLD > 0 && this . _isPagesLoaded && this . _destination && ! this . _destination . page ) {
this . _numPositionUpdates ++ ;
}
if ( UPDATE _VIEWAREA _TIMEOUT > 0 ) {
this . _updateViewareaTimeout = setTimeout ( function ( ) {
if ( ! _this2 . _popStateInProgress ) {
_this2 . _tryPushCurrentPosition ( true ) ;
}
_this2 . _updateViewareaTimeout = null ;
} , UPDATE _VIEWAREA _TIMEOUT ) ;
}
}
if ( ! this . reInitialized && state . uid < this . currentUid ) {
var previousParams = this . _getPreviousParams ( true ) ;
if ( previousParams ) {
this . _pushToHistory ( this . current , false ) ;
this . _pushToHistory ( previousParams , false ) ;
this . currentUid = state . uid ;
window . history . back ( ) ;
} , {
key : '_popState' ,
value : function _popState ( _ref4 ) {
var _this3 = this ;
var state = _ref4 . state ;
var newHash = getCurrentHash ( ) ,
hashChanged = this . _currentHash !== newHash ;
this . _currentHash = newHash ;
if ( ! state || false ) {
this . _currentUid = this . _uid ;
var _parseCurrentHash2 = parseCurrentHash ( this . linkService ) ,
hash = _parseCurrentHash2 . hash ,
page = _parseCurrentHash2 . page ;
this . _pushOrReplaceState ( {
hash : hash ,
page : page
} , true ) ;
return ;
}
if ( ! this . _isValidState ( state ) ) {
return ;
}
this . _popStateInProgress = true ;
if ( hashChanged ) {
this . _blockHashChange ++ ;
( 0 , _ui _utils . waitOnEventOrTimeout ) ( {
target : window ,
name : 'hashchange' ,
delay : HASH _CHANGE _TIMEOUT
} ) . then ( function ( ) {
_this3 . _blockHashChange -- ;
} ) ;
}
if ( state . uid < this . _currentUid && this . _position && this . _destination ) {
var shouldGoBack = false ;
if ( this . _destination . temporary ) {
this . _pushOrReplaceState ( this . _position ) ;
shouldGoBack = true ;
} else if ( this . _destination . page && this . _destination . page !== this . _position . first && this . _destination . page !== this . _position . page ) {
this . _pushOrReplaceState ( this . _destination ) ;
this . _pushOrReplaceState ( this . _position ) ;
shouldGoBack = true ;
}
if ( shouldGoBack ) {
this . _currentUid = state . uid ;
window . history . back ( ) ;
return ;
}
}
var destination = state . destination ;
this . _updateInternalState ( destination , state . uid , true ) ;
if ( destination . dest ) {
this . linkService . navigateTo ( destination . dest ) ;
} else if ( destination . hash ) {
this . linkService . setHash ( destination . hash ) ;
} else if ( destination . page ) {
this . linkService . page = destination . page ;
}
Promise . resolve ( ) . then ( function ( ) {
_this3 . _popStateInProgress = false ;
} ) ;
}
this . historyUnlocked = false ;
if ( state . target . dest ) {
this . linkService . navigateTo ( state . target . dest ) ;
} else {
this . linkService . setHash ( state . target . hash ) ;
} , {
key : '_bindEvents' ,
value : function _bindEvents ( ) {
var _this4 = this ;
var _boundEvents = this . _boundEvents ,
eventBus = this . eventBus ;
_boundEvents . updateViewarea = this . _updateViewarea . bind ( this ) ;
_boundEvents . popState = this . _popState . bind ( this ) ;
_boundEvents . pageHide = function ( evt ) {
if ( ! _this4 . _destination ) {
_this4 . _tryPushCurrentPosition ( ) ;
}
} ;
eventBus . on ( 'updateviewarea' , _boundEvents . updateViewarea ) ;
window . addEventListener ( 'popstate' , _boundEvents . popState ) ;
window . addEventListener ( 'pagehide' , _boundEvents . pageHide ) ;
}
this . currentUid = state . uid ;
if ( state . uid > this . uid ) {
this . uid = state . uid ;
} , {
key : 'popStateInProgress' ,
get : function get ( ) {
return this . initialized && ( this . _popStateInProgress || this . _blockHashChange > 0 ) ;
}
this . current = state . target ;
this . updatePreviousBookmark = true ;
var currentHash = window . location . hash . substring ( 1 ) ;
if ( this . previousHash !== currentHash ) {
this . allowHashChange = false ;
} ] ) ;
return PDFHistory ;
} ( ) ;
function isDestsEqual ( firstDest , secondDest ) {
function isEntryEqual ( first , second ) {
if ( ( typeof first === 'undefined' ? 'undefined' : _typeof ( first ) ) !== ( typeof second === 'undefined' ? 'undefined' : _typeof ( second ) ) ) {
return false ;
}
this . previousHash = currentHash ;
this . historyUnlocked = true ;
} ,
back : function pdfHistoryBack ( ) {
this . go ( - 1 ) ;
} ,
forward : function pdfHistoryForward ( ) {
this . go ( 1 ) ;
} ,
go : function pdfHistoryGo ( direction ) {
if ( this . initialized && this . historyUnlocked ) {
var state = window . history . state ;
if ( direction === - 1 && state && state . uid > 0 ) {
window . history . back ( ) ;
} else if ( direction === 1 && state && state . uid < this . uid - 1 ) {
window . history . forward ( ) ;
if ( first instanceof Array || second instanceof Array ) {
return false ;
}
if ( first !== null && ( typeof first === 'undefined' ? 'undefined' : _typeof ( first ) ) === 'object' && second !== null ) {
if ( Object . keys ( first ) . length !== Object . keys ( second ) . length ) {
return false ;
}
for ( var key in first ) {
if ( ! isEntryEqual ( first [ key ] , second [ key ] ) ) {
return false ;
}
}
return true ;
}
return first === second || Number . isNaN ( first ) && Number . isNaN ( second ) ;
}
} ;
if ( ! ( firstDest instanceof Array && secondDest instanceof Array ) ) {
return false ;
}
if ( firstDest . length !== secondDest . length ) {
return false ;
}
for ( var i = 0 , ii = firstDest . length ; i < ii ; i ++ ) {
if ( ! isEntryEqual ( firstDest [ i ] , secondDest [ i ] ) ) {
return false ;
}
}
return true ;
}
exports . PDFHistory = PDFHistory ;
exports . isDestsEqual = isDestsEqual ;
/***/ } ) ,
/* 11 */
pdfjsbot
8 years ago