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// Released under the MIT/X11 license
// http://www.opensource.org/licenses/mit-license.php
var {Cc,Ci} = require("chrome");
/**
* returns content of the system clipboard
* @return string with the content of the clipboard or "" if empty.
* originally from
* https://developer.mozilla.org/en/Using_the_Clipboard
* https://wiki.mozilla.org/Labs/Jetpack/JEP/10
*/
function getClipboard() {
var clip = Cc["@mozilla.org/widget/clipboard;1"].
getService(Ci.nsIClipboard);
if (!clip) {
throw new Error("No access to the clipboard!");
}
return clip;
}
function createTransferable() {
var trans = Cc["@mozilla.org/widget/transferable;1"].
createInstance(Ci.nsITransferable);
if (!trans) {
throw new Error("No access to the transfer object during the set of clipboard!");
}
return trans;
}
var getMethod = exports.get = function getMethod( flavor ) {
var pastetext = "", mimeType = "", stuff = {};
var len = 0, clipId = 0, clip = {}, trans = {};
// flavor argument is optional
if (flavor === undefined) {
flavor = "plain";
}
if (flavor === "plain") {
mimeType = "text/unicode";
} else if (favor === "html") {
mimeType = "text/html";
} else {
throw new Error("Unsupported flavor '" + flavor + "'!");
}
clip = getClipboard();
trans = createTransferable();
trans.addDataFlavor(mimeType);
clip.getData(trans, clip.kGlobalClipboard);
var str = {};
var strLength = {};
trans.getTransferData(mimeType, str, strLength);
if (str) {
str = str.value.QueryInterface(Ci.nsISupportsString);
pastetext = str.data.substring(0, strLength.value / 2);
}
return pastetext;
};
var setMethod = exports.set = function setMethod(content, flavor) {
var mimeType = "", stuff = {};
var len = 0, clipId = 0, clip = {}, trans = {};
// flavor argument is optional
if (flavor === undefined) {
flavor = "plain";
}
if (flavor === "plain") {
mimeType = "text/unicode";
} else if (favor === "html") {
mimeType = "text/html";
} else {
throw new Error("Unsupported flavor '" + flavor + "'!");
}
stuff = Cc["@mozilla.org/supports-string;1"].
createInstance(Ci.nsISupportsString);
if (!stuff) {
return false;
}
stuff.data = content;
len = content.length * 2;
clip = getClipboard();
trans = createTransferable();
trans.addDataFlavor(mimeType);
trans.setTransferData(mimeType, stuff, content.length * 2);
clip.setData(trans, null, clip.kGlobalClipboard);
return true;
};
var flavorsMethod = exports.getCurrentFlavors = function flavorsMethod(test) {
// currently the only possible flavors in Jetpack-prototype are "plain" and
// "html", i.e., "text/plain" (or text/unicode?) and "text/html" (or
// application/xml+xhtml?)
var possibleTypes = {
"text/unicode": "plain",
"text/plain": "plain",
"text/html": "html"
};
var flavorArray = [];
var clip = getClipboard();
for (var flavor in possibleTypes) {
var presentFlavor = clip.hasDataMatchingFlavors(
[flavor],
1,
clip.kGlobalClipboard
);
if (presentFlavor) {
flavorArray.push(possibleTypes[flavor]);
}
}
return flavorArray;
};
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