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FIX: fix stop-when without last-picture crash in world #23

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This commit is contained in:
Vishesh Yadav 2015-06-03 22:16:09 -04:00 committed by Vishesh Yadav
parent 5d5ab6b32a
commit c04ade5b28
2 changed files with 11 additions and 7 deletions
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4
whalesong/world/kernel.js
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@ -377,7 +377,7 @@ DefaultDrawingOutput.prototype.toRawHandler = function(MACHINE, toplevelNode) {
var StopWhen = function(handler, last_picture) {
WorldConfigOption.call(this, 'stop-when');
this.handler = handler;
this.last_picture = new ToDraw(last_picture);
this.last_picture = last_picture && new ToDraw(last_picture);
};
StopWhen.prototype = plt.baselib.heir(WorldConfigOption.prototype);
@ -385,6 +385,6 @@ StopWhen.prototype = plt.baselib.heir(WorldConfigOption.prototype);
StopWhen.prototype.toRawHandler = function(MACHINE, toplevelNode) {
var that = this;
var worldFunction = adaptWorldFunction(that.handler);
var lastPictureHandler = that.last_picture.toRawHandler(MACHINE, toplevelNode);
var lastPictureHandler = that.last_picture && that.last_picture.toRawHandler(MACHINE, toplevelNode);
return rawJsworld.stop_when(worldFunction, undefined, lastPictureHandler);
};

14
whalesong/world/raw-jsworld.js
View File

@ -663,12 +663,16 @@ var rawJsworld = {};
stopWhen.test(w,
function(stop) {
if (stop) {
var handler = stopWhen.last_picture_handler();
handler.onRegister(top);
handler._listener(w, oldW, function(v) {
if (stopWhen.last_picture_handler) {
var handler = stopWhen.last_picture_handler();
handler.onRegister(top);
handler._listener(w, oldW, function(v) {
Jsworld.shutdown({cleanShutdown: true});
k2();
})
} else {
Jsworld.shutdown({cleanShutdown: true});
k2();
})
}
} else { k2(); }
});
};