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Diffstat (limited to '')
| -rw-r--r-- | widget/tests/clipboard_helper.js | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/widget/tests/clipboard_helper.js b/widget/tests/clipboard_helper.js new file mode 100644 index 0000000000..96787468fb --- /dev/null +++ b/widget/tests/clipboard_helper.js @@ -0,0 +1,230 @@ +/* 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); + } + }); +} |