javascript - paste data from clipboard using document.execCommand("paste"); within firefox extension -

javascript - paste data from clipboard using document.execCommand("paste"); within firefox extension -

i trying paste clipboard info variable gets fed , fired via xmlhttprequest post message.

i have created firefox user.js code increment access clipboard based on recommendation.

user_pref("capability.policy.policynames", "allowclipboard"); user_pref("capability.policy.allowclipboard.sites", "mydomain"); user_pref("capability.policy.allowclipboard.clipboard.cutcopy", "allaccess"); user_pref("capability.policy.allowclipboard.clipboard.paste", "allaccess");

do need alter "mydomain" in line two? not want sites have access. internal firefox extension.

i have read several guides here , here mozilla.

here code have far. clipboard contents should sent post method via xmlhttprequest. xmlhttprequest works, have been using other variables.

var pastetext = document.execcommand('paste'); var req = new xmlhttprequest(); req.open('post', pastetext, true); req.onreadystatechange = function(aevt) { if (req.readystate == 4) { if (req.status == 200) dump(req.responsetext); else dump("error loading page\n"); } }; req.send(null);

i grateful help. give thanks you

what need not execcommand need read info clipboard. addon in privelaged scope don't need worry preferences. (user.js firefox-addon right?)

see here:

mdn :: using clipboard mdn :: nsiclipboard

this way can read contents var pastedcontents.

here illustration above worked in:

var trans = cc["@mozilla.org/widget/transferable;1"].createinstance(ci.nsitransferable); trans.adddataflavor("text/unicode"); services.clipboard.getdata(trans, services.clipboard.kglobalclipboard); var pastetextnsisupports = {}; var pastetextnsisupportslength = {}; trans.gettransferdata("text/unicode", pastetextnsisupports, pastetextnsisupportslength); var pastetext = pastetextnsisupports.value.queryinterface(ci.nsisupportsstring).data; var req = new xmlhttprequest(); req.open('post', pastetext, true); req.onreadystatechange = function(aevt) { if (req.readystate == 4) { if (req.status == 200) dump(req.responsetext); else dump("error loading page\n"); } }; req.send(null);

javascript firefox firefox-addon clipboard clipboarddata