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32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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// use ppmm to handle file-picker message.
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let ppmm = Cc['@mozilla.org/parentprocessmessagemanager;1']
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.getService(Ci.nsIMessageListenerManager);
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let pickResult = null;
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function processPickMessage(message) {
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let sender = message.target.QueryInterface(Ci.nsIMessageSender);
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// reply FilePicker's message
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sender.sendAsyncMessage('file-picked', pickResult);
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// notify caller
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sendAsyncMessage('file-picked-posted', { type: 'file-picked-posted' });
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}
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function updatePickResult(result) {
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pickResult = result;
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sendAsyncMessage('pick-result-updated', { type: 'pick-result-updated' });
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}
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ppmm.addMessageListener('file-picker', processPickMessage);
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// use update-pick-result to change the expected pick result.
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addMessageListener('update-pick-result', updatePickResult);
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