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Code Issues Projects Releases Wiki Activity

Added ajaxWithCredentials option

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This commit is contained in:
Ian Gilman 2015-01-02 15:45:46 -08:00
parent 03fec96f33
commit c820f9f918
3 changed files with 100 additions and 57 deletions
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21
src/openseadragon.js
View File

@ -551,8 +551,11 @@
* If collectionMode is true, specifies the margin, in viewport coordinates, between each TiledImage.
*
* @property {String|Boolean} [crossOriginPolicy=false]
* Valid values are 'Anonymous', 'use-credentials', and false. If false, canvas requests will
* not use CORS, and the canvas will be tainted.
* Valid values are 'Anonymous', 'use-credentials', and false. If false, canvas requests will
* not use CORS, and the canvas will be tainted.
*
* @property {Boolean} [ajaxWithCredentials=false]
* Whether to set the withCredentials XHR flag for AJAX requests (when loading tile sources).
*
*/
@ -911,6 +914,7 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
tileHost: null,
initialPage: 0,
crossOriginPolicy: false,
ajaxWithCredentials: false,
//PAN AND ZOOM SETTINGS AND CONSTRAINTS
panHorizontal: true,
@ -1923,6 +1927,15 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
* @throws {Error}
*/
makeAjaxRequest: function( url, onSuccess, onError ) {
var withCredentials;
if( $.isPlainObject( url ) ){
onSuccess = url.success;
onError = url.error;
withCredentials = url.withCredentials;
url = url.url;
}
var protocol = $.getUrlProtocol( url );
var request = $.createAjaxRequest( protocol === "file:" );
@ -1949,6 +1962,10 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
}
};
if (withCredentials) {
request.withCredentials = true;
}
try {
request.open( "GET", url, true );
request.send( null );

118
src/tilesource.js
View File

@ -74,8 +74,9 @@
* The maximum level to attempt to load.
*/
$.TileSource = function( width, height, tileSize, tileOverlap, minLevel, maxLevel ) {
var callback = null,
args = arguments,
var _this = this;
var args = arguments,
options,
i;
@ -102,19 +103,23 @@ $.TileSource = function( width, height, tileSize, tileOverlap, minLevel, maxLeve
//source
$.extend( true, this, options );
//Any functions that are passed as arguments are bound to the ready callback
/*jshint loopfunc:true*/
for ( i = 0; i < arguments.length; i++ ) {
if ( $.isFunction( arguments[ i ] ) ) {
callback = arguments[ i ];
this.addHandler( 'ready', function ( event ) {
callback( event );
} );
//only one callback per constructor
break;
if (!this.success) {
//Any functions that are passed as arguments are bound to the ready callback
for ( i = 0; i < arguments.length; i++ ) {
if ( $.isFunction( arguments[ i ] ) ) {
this.success = arguments[ i ];
//only one callback per constructor
break;
}
}
}
if (this.success) {
this.addHandler( 'ready', function ( event ) {
_this.success( event );
} );
}
/**
* Ratio of width to height
* @member {Number} aspectRatio
@ -154,6 +159,10 @@ $.TileSource = function( width, height, tileSize, tileOverlap, minLevel, maxLeve
*/
if( 'string' == $.type( arguments[ 0 ] ) ){
this.url = arguments[0];
}
if (this.url) {
//in case the getImageInfo method is overriden and/or implies an
//async mechanism set some safe defaults first
this.aspectRatio = 1;
@ -165,7 +174,7 @@ $.TileSource = function( width, height, tileSize, tileOverlap, minLevel, maxLeve
this.ready = false;
//configuration via url implies the extending class
//implements and 'configure'
this.getImageInfo( arguments[ 0 ] );
this.getImageInfo( this.url );
} else {
@ -185,8 +194,8 @@ $.TileSource = function( width, height, tileSize, tileOverlap, minLevel, maxLeve
Math.log( 2 )
) : 0
);
if( callback && $.isFunction( callback ) ){
callback( this );
if( this.success && $.isFunction( this.success ) ){
this.success( this );
}
}
@ -355,6 +364,10 @@ $.TileSource.prototype = /** @lends OpenSeadragon.TileSource.prototype */{
}
options = $TileSource.prototype.configure.apply( _this, [ data, url ]);
if (options.ajaxWithCredentials === undefined) {
options.ajaxWithCredentials = _this.ajaxWithCredentials;
}
readySource = new $TileSource( options );
_this.ready = true;
/**
@ -383,45 +396,50 @@ $.TileSource.prototype = /** @lends OpenSeadragon.TileSource.prototype */{
});
} else {
// request info via xhr asynchronously.
$.makeAjaxRequest( url, function( xhr ) {
var data = processResponse( xhr );
callback( data );
}, function ( xhr, exc ) {
var msg;
$.makeAjaxRequest( {
url: url,
withCredentials: this.ajaxWithCredentials,
success: function( xhr ) {
var data = processResponse( xhr );
callback( data );
},
error: function ( xhr, exc ) {
var msg;
/*
IE < 10 will block XHR requests to different origins. Any property access on the request
object will raise an exception which we'll attempt to handle by formatting the original
exception rather than the second one raised when we try to access xhr.status
*/
try {
msg = "HTTP " + xhr.status + " attempting to load TileSource";
} catch ( e ) {
var formattedExc;
if ( typeof( exc ) == "undefined" || !exc.toString ) {
formattedExc = "Unknown error";
} else {
formattedExc = exc.toString();
/*
IE < 10 will block XHR requests to different origins. Any property access on the request
object will raise an exception which we'll attempt to handle by formatting the original
exception rather than the second one raised when we try to access xhr.status
*/
try {
msg = "HTTP " + xhr.status + " attempting to load TileSource";
} catch ( e ) {
var formattedExc;
if ( typeof( exc ) == "undefined" || !exc.toString ) {
formattedExc = "Unknown error";
} else {
formattedExc = exc.toString();
}
msg = formattedExc + " attempting to load TileSource";
}
msg = formattedExc + " attempting to load TileSource";
/***
* Raised when an error occurs loading a TileSource.
*
* @event open-failed
* @memberof OpenSeadragon.TileSource
* @type {object}
* @property {OpenSeadragon.TileSource} eventSource - A reference to the TileSource which raised the event.
* @property {String} message
* @property {String} source
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
_this.raiseEvent( 'open-failed', {
message: msg,
source: url
});
}
/***
* Raised when an error occurs loading a TileSource.
*
* @event open-failed
* @memberof OpenSeadragon.TileSource
* @type {object}
* @property {OpenSeadragon.TileSource} eventSource - A reference to the TileSource which raised the event.
* @property {String} message
* @property {String} source
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
_this.raiseEvent( 'open-failed', {
message: msg,
source: url
});
});
}

12
src/viewer.js
View File

@ -2051,14 +2051,22 @@ function getTileSourceImplementation( viewer, tileSource, successCallback,
setTimeout( function() {
if ( $.type( tileSource ) == 'string' ) {
//If its still a string it means it must be a url at this point
tileSource = new $.TileSource( tileSource, function( event ) {
successCallback( event.tileSource );
tileSource = new $.TileSource({
url: tileSource,
ajaxWithCredentials: viewer.ajaxWithCredentials,
success: function( event ) {
successCallback( event.tileSource );
}
});
tileSource.addHandler( 'open-failed', function( event ) {
failCallback( event );
} );
} else if ( $.isPlainObject( tileSource ) || tileSource.nodeType ) {
if (tileSource.ajaxWithCredentials === undefined) {
tileSource.ajaxWithCredentials = viewer.ajaxWithCredentials;
}
if ( $.isFunction( tileSource.getTileUrl ) ) {
//Custom tile source
var customTileSource = new $.TileSource( tileSource );