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Merge pull request #1196 from VipSaran/master

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fix for #1191 (extension of Viewer.open() function with initialPage argument)
This commit is contained in:
Ian Gilman 2017-05-15 10:07:58 -07:00 committed by GitHub
commit bf1b5fd793
1 changed files with 13 additions and 1 deletions
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14
src/viewer.js
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@ -96,6 +96,12 @@ $.Viewer = function( options ) {
//internal state and dom identifiers //internal state and dom identifiers
id: options.id, id: options.id,
hash: options.hash || nextHash++, hash: options.hash || nextHash++,
/**
* If sequenceMode is true, display this page initially for the given tileSources.
* @member {Number} initialPage
* @memberof OpenSeadragon.Viewer#
*/
initialPage: 0,
//dom nodes //dom nodes
/** /**
@ -482,11 +488,13 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
* except for the index property; images are added in sequence. * except for the index property; images are added in sequence.
* A TileSource specifier is anything you could pass as the tileSource property * A TileSource specifier is anything you could pass as the tileSource property
* of the options parameter for {@link OpenSeadragon.Viewer#addTiledImage}. * of the options parameter for {@link OpenSeadragon.Viewer#addTiledImage}.
* @param {Number} initialPage - If sequenceMode is true, display this page initially
* for the given tileSources. If specified, will overwrite the existing homonymous option.
* @return {OpenSeadragon.Viewer} Chainable. * @return {OpenSeadragon.Viewer} Chainable.
* @fires OpenSeadragon.Viewer.event:open * @fires OpenSeadragon.Viewer.event:open
* @fires OpenSeadragon.Viewer.event:open-failed * @fires OpenSeadragon.Viewer.event:open-failed
*/ */
open: function (tileSources) { open: function (tileSources, initialPage) {
var _this = this; var _this = this;
this.close(); this.close();
@ -501,6 +509,10 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
this.referenceStrip = null; this.referenceStrip = null;
} }
if (typeof initialPage != 'undefined' && !isNaN(initialPage)) {
this.initialPage = initialPage;
}
this.tileSources = tileSources; this.tileSources = tileSources;
this._sequenceIndex = Math.max(0, Math.min(this.tileSources.length - 1, this.initialPage)); this._sequenceIndex = Math.max(0, Math.min(this.tileSources.length - 1, this.initialPage));
if (this.tileSources.length) { if (this.tileSources.length) {