@@ -89,16 +89,23 @@ var PDFView = {
var pages = this .pages ;
var input = document .getElementById ('pageNumber' );
if (!(0 < val && val <= pages .length )) {
input .value = this .page ;
var event = document .createEvent ('UIEvents' );
event .initUIEvent ('pagechange' , false , false , window , 0 );
event .pageNumber = this .page ;
window .dispatchEvent (event );
return ;
}
currentPageNumber = val ;
document .getElementById ('previous' ).disabled = (val == 1 );
document .getElementById ('next' ).disabled = (val == pages .length );
if (input .value != val ) {
input .value = val ;
}
var event = document .createEvent ('UIEvents' );
event .initUIEvent ('pagechange' , false , false , window , 0 );
event .pageNumber = val ;
window .dispatchEvent (event );
// checking if the this.page was called from the updateViewarea function:
// avoiding the creation of two "set page" method (internal and public)
if (updateViewarea .inProgress )
return ;
pages [val - 1 ].scrollIntoView ();
},
@@ -147,12 +154,20 @@ var PDFView = {
if (typeof dest === 'string' )
return '#' + escape (dest );
if (dest instanceof Array ) {
var destRef = dest [0 ]; // see nevigateTo method for dest format
var destRef = dest [0 ]; // see navigateTo method for dest format
var pageNumber = destRef instanceof Object ?
this .pagesRefMap [destRef .num + ' ' + destRef .gen + ' R' ] :
(destRef + 1 );
if (pageNumber ) {
return '#page=' + pageNumber + '&dest=' + dest .slice (1 ).join (',' );
var pdfOpenParams = '#page=' + pageNumber ;
if (isName (dest [1 ], 'XYZ' )) {
var scale = (dest [4 ] || this .currentScale );
pdfOpenParams += '&zoom=' + (scale * 100 );
if (dest [2 ] || dest [3 ]) {
pdfOpenParams += ',' + (dest [2 ] || 0 ) + ',' + (dest [3 ] || 0 );
}
}
return pdfOpenParams ;
}
}
return '';
@@ -228,10 +243,32 @@ var PDFView = {
return ;
if (hash .indexOf ('=' ) >= 0 ) {
// TODO more complex hashes, for now catching page=XX only
var m = /\bpage =(\d +exec (hash );
if (m && m [1 ] > 0 )
this .page = m [1 ];
// parsing query string
var paramsPairs = hash .split ('&' );
var params = {};
for (var i = 0 ; i < paramsPairs .length ; ++i ) {
var paramPair = paramsPairs [i ].split ('=' );
params [paramPair [0 ]] = paramPair [1 ];
}
// borrowing syntax from "Parameters for Opening PDF Files"
if ('nameddest' in params ) {
PDFView .navigateTo (params .nameddest );
return ;
}
if ('page' in params ) {
var pageNumber = (params .page | 0 ) || 1 ;
this .page = pageNumber ;
if ('zoom' in params ) {
var zoomArgs = params .zoom .split (',' ); // scale,left,top
// building destination array
var dest = [null , new Name ('XYZ' ), (zoomArgs [1 ] | 0 ),
(zoomArgs [2 ] | 0 ), (zoomArgs [0 ] | 0 ) / 100 ];
var currentPage = this .pages [pageNumber - 1 ];
currentPage .scrollIntoView (dest );
} else
this .page = page ; // simple page
return ;
}
} else if (/^\d +$ /.test (hash )) // page number
this .page = hash ;
else // named destination
@@ -341,6 +378,11 @@ var PageView = function pageView(container, content, id, pageWidth, pageHeight,
}
}
this .getPagePoint = function pageViewGetPagePoint (x , y ) {
var scale = PDFView .currentScale ;
return this .content .rotatePoint (x / scale , y / scale );
};
this .scrollIntoView = function pageViewScrollIntoView (dest ) {
if (!dest ) {
div .scrollIntoView (true );
@@ -390,7 +432,7 @@ var PageView = function pageView(container, content, id, pageWidth, pageHeight,
this .content .rotatePoint (x + width , y + height )
];
if (scale )
if (scale && scale !== PDFView . currentScale )
PDFView .setScale (scale , true );
setTimeout (function pageViewScrollIntoViewRelayout () {
@@ -578,13 +620,21 @@ function updateViewarea() {
if (!visiblePages .length )
return ;
updateViewarea .inProgress = true ; // used in "set page"
var currentId = PDFView .page ;
var firstPage = visiblePages [0 ];
var lastPage = visiblePages [visiblePages .length - 1 ];
if (currentId > lastPage .id && lastPage .y > window .pageYOffset )
PDFView .page = lastPage .id ;
else if (currentId < firstPage .id )
PDFView .page = firstPage .id ;
PDFView .page = firstPage .id ;
updateViewarea .inProgress = false ;
var kViewerTopMargin = 52 ;
var pageNumber = firstPage .id ;
var pdfOpenParams = '#page=' + pageNumber ;
pdfOpenParams += '&zoom=' + Math .round (PDFView .currentScale * 100 );
var currentPage = PDFView .pages [pageNumber - 1 ];
var topLeft = currentPage .getPagePoint (window .pageXOffset ,
window .pageYOffset - firstPage .y - kViewerTopMargin );
pdfOpenParams += ',' + Math .round (topLeft .x ) + ',' + Math .round (topLeft .y );
document .getElementById ('viewBookmark' ).href = pdfOpenParams ;
}
window .addEventListener ('scroll' , function webViewerScroll (evt ) {
@@ -625,6 +675,9 @@ window.addEventListener('change', function webViewerChange(evt) {
fileReader .readAsBinaryString (file );
document .title = file .name ;
// URL does not reflect proper document location - hiding bookmark icon.
document .getElementById ('viewBookmark' ).style .display = 'none' ;
}, true );
window .addEventListener ('transitionend' , function webViewerTransitionend (evt ) {
@@ -675,10 +728,11 @@ window.addEventListener('scalechange', function scalechange(evt) {
}, true );
window .addEventListener ('pagechange' , function pagechange (evt ) {
var page = evt .detail ;
document .getElementById ('pageNumber' ).value = page ;
document .getElementById ('previous' ).disabled = (page == 1 );
document .getElementById ('next' ).disabled = (page == PDFView .pages .length );
var page = evt .pageNumber ;
if (document .getElementById ('pageNumber' ).value != page )
document .getElementById ('pageNumber' ).value = page ;
document .getElementById ('previous' ).disabled = (page <= 1 );
document .getElementById ('next' ).disabled = (page >= PDFView .pages .length );
}, true );
window .addEventListener ('keydown' , function keydown (evt ) {
