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Merge pull request #790 from Riksarkivet/iframe

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Partial fix for drag release outside an iframe
This commit is contained in:
Ian Gilman 2015-12-15 09:59:06 -08:00
commit 0b411969ad
1 changed files with 40 additions and 0 deletions
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40
src/mousetracker.js
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@ -1367,6 +1367,14 @@
eventParams = getCaptureEventParams( tracker, $.MouseTracker.havePointerEvents ? 'pointerevent' : pointerType ); eventParams = getCaptureEventParams( tracker, $.MouseTracker.havePointerEvents ? 'pointerevent' : pointerType );
// We emulate mouse capture by hanging listeners on the document object. // We emulate mouse capture by hanging listeners on the document object.
// (Note we listen on the capture phase so the captured handlers will get called first) // (Note we listen on the capture phase so the captured handlers will get called first)
if (isInIframe && canAccessEvents(window.top)) {
$.addEvent(
window.top,
eventParams.upName,
eventParams.upHandler,
true
);
}
$.addEvent( $.addEvent(
$.MouseTracker.captureElement, $.MouseTracker.captureElement,
eventParams.upName, eventParams.upName,
@ -1402,6 +1410,14 @@
eventParams = getCaptureEventParams( tracker, $.MouseTracker.havePointerEvents ? 'pointerevent' : pointerType ); eventParams = getCaptureEventParams( tracker, $.MouseTracker.havePointerEvents ? 'pointerevent' : pointerType );
// We emulate mouse capture by hanging listeners on the document object. // We emulate mouse capture by hanging listeners on the document object.
// (Note we listen on the capture phase so the captured handlers will get called first) // (Note we listen on the capture phase so the captured handlers will get called first)
if (isInIframe && canAccessEvents(window.top)) {
$.removeEvent(
window.top,
eventParams.upName,
eventParams.upHandler,
true
);
}
$.removeEvent( $.removeEvent(
$.MouseTracker.captureElement, $.MouseTracker.captureElement,
eventParams.moveName, eventParams.moveName,
@ -3249,4 +3265,28 @@
} }
} }
// True if inside an iframe, otherwise false.
// @member {Boolean} isInIframe
// @private
// @inner
var isInIframe = (function() {
try {
return window.self !== window.top;
} catch (e) {
return true;
}
})();
// @function
// @private
// @inner
// @returns {Boolean} True if the target has access rights to events, otherwise false.
function canAccessEvents (target) {
try {
return target.addEventListener && target.removeEventListener;
} catch (e) {
return false;
}
}
} ( OpenSeadragon ) ); } ( OpenSeadragon ) );