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Merge pull request #1148 from sickrandir/preventDefault-canvas-click

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Manage preventDefaultAction inside canvas-click event
This commit is contained in:
Ian Gilman 2017-03-15 09:30:16 -07:00 committed by GitHub
commit 7f2a6eb74b
1 changed files with 22 additions and 17 deletions
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39
src/viewer.js
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@ -2463,16 +2463,15 @@ function onCanvasClick( event ) {
this.canvas.focus();
}
if ( !event.preventDefaultAction && this.viewport && event.quick ) {
gestureSettings = this.gestureSettingsByDeviceType( event.pointerType );
if ( gestureSettings.clickToZoom ) {
this.viewport.zoomBy(
event.shift ? 1.0 / this.zoomPerClick : this.zoomPerClick,
this.viewport.pointFromPixel( event.position, true )
);
this.viewport.applyConstraints();
}
}
var canvasClickEventArgs = {
tracker: event.eventSource,
position: event.position,
quick: event.quick,
shift: event.shift,
originalEvent: event.originalEvent,
preventDefaultAction: event.preventDefaultAction
};
/**
* Raised when a mouse press/release or touch/remove occurs on the {@link OpenSeadragon.Viewer#canvas} element.
*
@ -2485,15 +2484,21 @@ function onCanvasClick( event ) {
* @property {Boolean} quick - True only if the clickDistThreshold and clickTimeThreshold are both passed. Useful for differentiating between clicks and drags.
* @property {Boolean} shift - True if the shift key was pressed during this event.
* @property {Object} originalEvent - The original DOM event.
* @property {Boolean} preventDefaultAction - Set to true to prevent default click to zoom behaviour. Default: false.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
this.raiseEvent( 'canvas-click', {
tracker: event.eventSource,
position: event.position,
quick: event.quick,
shift: event.shift,
originalEvent: event.originalEvent
});
this.raiseEvent( 'canvas-click', canvasClickEventArgs);
if ( !canvasClickEventArgs.preventDefaultAction && this.viewport && event.quick ) {
gestureSettings = this.gestureSettingsByDeviceType( event.pointerType );
if ( gestureSettings.clickToZoom ) {
this.viewport.zoomBy(
event.shift ? 1.0 / this.zoomPerClick : this.zoomPerClick,
this.viewport.pointFromPixel( event.position, true )
);
this.viewport.applyConstraints();
}
}
}
function onCanvasDblClick( event ) {