зеркало из https://github.com/mozilla/gecko-dev.git
62 строки
1.5 KiB
JavaScript
62 строки
1.5 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// Helpers for clipboard handling.
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"use strict";
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const { Cc, Ci } = require("chrome");
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const Services = require("Services");
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const clipboardHelper = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(
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Ci.nsIClipboardHelper
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);
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function copyString(string) {
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clipboardHelper.copyString(string);
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}
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/**
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* Retrieve the current clipboard data matching the flavor "text/unicode".
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*
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* @return {String} Clipboard text content, null if no text clipboard data is available.
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*/
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function getText() {
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const flavor = "text/unicode";
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const xferable = Cc["@mozilla.org/widget/transferable;1"].createInstance(
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Ci.nsITransferable
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);
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if (!xferable) {
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throw new Error(
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"Couldn't get the clipboard data due to an internal error " +
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"(couldn't create a Transferable object)."
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);
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}
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xferable.init(null);
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xferable.addDataFlavor(flavor);
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// Get the data into our transferable.
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Services.clipboard.getData(xferable, Services.clipboard.kGlobalClipboard);
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const data = {};
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try {
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xferable.getTransferData(flavor, data);
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} catch (e) {
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// Clipboard doesn't contain data in flavor, return null.
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return null;
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}
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// There's no data available, return.
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if (!data.value) {
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return null;
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}
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return data.value.QueryInterface(Ci.nsISupportsString).data;
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}
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exports.copyString = copyString;
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exports.getText = getText;
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