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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
const Cc = SpecialPowers.Cc;
const Ci = SpecialPowers.Ci;
const Cr = SpecialPowers.Cr;
const clipboard = SpecialPowers.Services.clipboard;
const clipboardTypes = [
clipboard.kGlobalClipboard,
clipboard.kSelectionClipboard,
clipboard.kFindClipboard,
clipboard.kSelectionCache,
];
function emptyClipboardData(aType) {
// XXX gtk doesn't support emptying clipboard data which is stored from
// other application (bug 1853884). As a workaround, we set dummy data
// to the clipboard first to ensure the subsequent emptyClipboard call
// works.
if (navigator.platform.includes("Linux")) {
writeStringToClipboard("foo", "text/plain", aType);
}
clipboard.emptyClipboard(aType);
}
function cleanupAllClipboard() {
clipboardTypes.forEach(function (type) {
if (clipboard.isClipboardTypeSupported(type)) {
info(`cleanup clipboard ${type}`);
emptyClipboardData(type);
}
});
}
function generateRandomString() {
return "random number: " + Math.random();
}
function generateNewTransferable(aFlavor, aStr) {
let trans = Cc["@mozilla.org/widget/transferable;1"].createInstance(
Ci.nsITransferable
);
trans.init(null);
trans.addDataFlavor(aFlavor);
let supportsStr = Cc["@mozilla.org/supports-string;1"].createInstance(
Ci.nsISupportsString
);
supportsStr.data = aStr;
trans.setTransferData(aFlavor, supportsStr);
return trans;
}
function addStringToTransferable(aFlavor, aStr, aTrans) {
aTrans.addDataFlavor(aFlavor);
let supportsStr = Cc["@mozilla.org/supports-string;1"].createInstance(
Ci.nsISupportsString
);
supportsStr.data = aStr;
aTrans.setTransferData(aFlavor, supportsStr);
}
function updateStringToTransferable(aFlavor, aStr, aTrans) {
let supportsStr = Cc["@mozilla.org/supports-string;1"].createInstance(
Ci.nsISupportsString
);
supportsStr.data = aStr;
aTrans.setTransferData(aFlavor, supportsStr);
}
function writeStringToClipboard(
aStr,
aFlavor,
aClipboardType,
aClipboardOwner = null,
aAsync = false
) {
let trans = Cc["@mozilla.org/widget/transferable;1"].createInstance(
Ci.nsITransferable
);
trans.init(null);
trans.addDataFlavor(aFlavor);
let supportsStr = Cc["@mozilla.org/supports-string;1"].createInstance(
Ci.nsISupportsString
);
supportsStr.data = aStr;
trans.setTransferData(aFlavor, supportsStr);
if (aAsync) {
let request = clipboard.asyncSetData(aClipboardType);
request.setData(trans, aClipboardOwner);
return;
}
clipboard.setData(trans, aClipboardOwner, aClipboardType);
// XXX gtk doesn't support get empty text data from clipboard, bug 1852983.
if (aStr == "" && navigator.platform.includes("Linux")) {
todo_is(
getClipboardData(aFlavor, aClipboardType),
"",
`Should get empty string on clipboard type ${aClipboardType}`
);
} else {
is(
getClipboardData(aFlavor, aClipboardType),
// On Windows, widget adds extra data into HTML clipboard.
aFlavor == "text/html" && navigator.platform.includes("Win")
? `<html><body>\n<!--StartFragment-->${aStr}<!--EndFragment-->\n</body>\n</html>`
: aStr,
"ensure clipboard data is set"
);
}
}
function writeRandomStringToClipboard(
aFlavor,
aClipboardType,
aClipboardOwner = null,
aAsync = false
) {
let randomString = generateRandomString();
writeStringToClipboard(
randomString,
aFlavor,
aClipboardType,
aClipboardOwner,
aAsync
);
return randomString;
}
function getClipboardData(aFlavor, aClipboardType) {
var trans = Cc["@mozilla.org/widget/transferable;1"].createInstance(
Ci.nsITransferable
);
trans.init(null);
trans.addDataFlavor(aFlavor);
clipboard.getData(
trans,
aClipboardType,
SpecialPowers.wrap(window).browsingContext.currentWindowContext
);
try {
var data = SpecialPowers.createBlankObject();
trans.getTransferData(aFlavor, data);
return data.value.QueryInterface(SpecialPowers.Ci.nsISupportsString).data;
} catch (ex) {
// If the clipboard is empty getTransferData will throw.
return null;
}
}
function asyncGetClipboardData(aClipboardType) {
return new Promise((resolve, reject) => {
try {
clipboard.asyncGetData(
["text/plain", "text/html", "image/png"],
aClipboardType,
null,
SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal(),
{
QueryInterface: SpecialPowers.ChromeUtils.generateQI([
"nsIAsyncClipboardGetCallback",
]),
// nsIAsyncClipboardGetCallback
onSuccess: SpecialPowers.wrapCallback(function (
aAsyncGetClipboardData
) {
resolve(aAsyncGetClipboardData);
}),
onError: SpecialPowers.wrapCallback(function (aResult) {
reject(aResult);
}),
}
);
} catch (e) {
ok(false, `asyncGetData should not throw`);
reject(e);
}
});
}
function asyncClipboardRequestGetData(aRequest, aFlavor, aThrows = false) {
return new Promise((resolve, reject) => {
var trans = Cc["@mozilla.org/widget/transferable;1"].createInstance(
Ci.nsITransferable
);
trans.init(null);
trans.addDataFlavor(aFlavor);
try {
aRequest.getData(trans, aResult => {
if (aResult != Cr.NS_OK) {
reject(aResult);
return;
}
try {
var data = SpecialPowers.createBlankObject();
trans.getTransferData(aFlavor, data);
resolve(data.value.QueryInterface(Ci.nsISupportsString).data);
} catch (ex) {
// XXX: should widget set empty string to transferable when there no
// data in system clipboard?
resolve("");
}
});
ok(
!aThrows,
`nsIAsyncGetClipboardData.getData should ${
aThrows ? "throw" : "success"
}`
);
} catch (e) {
ok(
aThrows,
`nsIAsyncGetClipboardData.getData should ${
aThrows ? "throw" : "success"
}`
);
reject(e);
}
});
}
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