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Merge pull request #2239 from pearcetm/viewer-destroy-event

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Viewer destroy event
This commit is contained in:
Ian Gilman 2022-11-29 13:51:48 -08:00 committed by GitHub
commit b8cc7e171e
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2 changed files with 27 additions and 2 deletions
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27
src/viewer.js
View File

@ -756,6 +756,8 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
* viewer = null; //important
*
* @function
* @fires OpenSeadragon.Viewer.event:before-destroy
* @fires OpenSeadragon.Viewer.event:destroy
*/
destroy: function( ) {
if ( !THIS[ this.hash ] ) {
@ -763,6 +765,17 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
return;
}
/**
* Raised when the viewer is about to be destroyed (see {@link OpenSeadragon.Viewer#before-destroy}).
*
* @event before-destroy
* @memberof OpenSeadragon.Viewer
* @type {object}
* @property {OpenSeadragon.Viewer} eventSource - A reference to the Viewer which raised the event.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
this.raiseEvent( 'before-destroy' );
this._removeUpdatePixelDensityRatioEvent();
this.close();
@ -795,7 +808,6 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
this.navigator = null;
}
this.removeAllHandlers();
if (this.buttonGroup) {
this.buttonGroup.destroy();
@ -841,6 +853,19 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
// clear our reference to the main element - they will need to pass it in again, creating a new viewer
this.element = null;
/**
* Raised when the viewer is destroyed (see {@link OpenSeadragon.Viewer#destroy}).
*
* @event destroy
* @memberof OpenSeadragon.Viewer
* @type {object}
* @property {OpenSeadragon.Viewer} eventSource - A reference to the Viewer which raised the event.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
this.raiseEvent( 'destroy' );
this.removeAllHandlers();
},
/**

2
src/viewport.js
View File

@ -514,7 +514,7 @@ $.Viewport.prototype = {
* @param {OpenSeadragon.Rect} bounds
* @returns {OpenSeadragon.Rect} constrained bounds.
*/
_applyBoundaryConstraints: function(bounds) {
_applyBoundaryConstraints: function(bounds) {
var newBounds = new $.Rect(
bounds.x,
bounds.y,