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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
PromptUtils: "resource://gre/modules/PromptUtils.sys.mjs",
});
export var ClipboardContextMenu = {
MENU_POPUP_ID: "clipboardReadPasteMenuPopup",
// EventListener interface.
handleEvent(aEvent) {
switch (aEvent.type) {
case "command": {
this.onCommand();
break;
}
case "popuphiding": {
this.onPopupHiding();
break;
}
case "keydown": {
this.onKeyDown(aEvent);
break;
}
}
},
_pasteMenuItemClicked: false,
onCommand() {
// onPopupHiding is responsible for returning result by calling onComplete
// function.
this._pasteMenuItemClicked = true;
},
onPopupHiding() {
// Remove the listeners before potentially sending the async message
// below, because that might throw.
this._removeMenupopupEventListeners();
this._clearDelayTimer();
this._stopWatchingForSpammyActivation();
this._menupopup = null;
this._menuitem = null;
let propBag = lazy.PromptUtils.objectToPropBag({
ok: this._pasteMenuItemClicked,
});
this._pendingRequest.resolve(propBag);
// A result has already been responded to. Reset the state to properly
// handle further click or dismiss events.
this._pasteMenuItemClicked = false;
this._pendingRequest = null;
},
_lastBeepTime: 0,
onKeyDown(aEvent) {
if (!this._menuitem.disabled) {
return;
}
let accesskey = this._menuitem.getAttribute("accesskey");
if (
aEvent.key == accesskey.toLowerCase() ||
aEvent.key == accesskey.toUpperCase()
) {
if (Date.now() - this._lastBeepTime > 1000) {
Cc["@mozilla.org/sound;1"].getService(Ci.nsISound).beep();
this._lastBeepTime = Date.now();
}
this._refreshDelayTimer();
}
},
_menupopup: null,
_menuitem: null,
_pendingRequest: null,
confirmUserPaste(aWindowContext) {
return new Promise((resolve, reject) => {
if (!aWindowContext) {
reject(
Components.Exception("Null window context.", Cr.NS_ERROR_INVALID_ARG)
);
return;
}
let { document } = aWindowContext.browsingContext.topChromeWindow;
if (!document) {
reject(
Components.Exception(
"Unable to get chrome document.",
Cr.NS_ERROR_FAILURE
)
);
return;
}
if (this._pendingRequest) {
reject(
Components.Exception(
"There is an ongoing request.",
Cr.NS_ERROR_FAILURE
)
);
return;
}
this._pendingRequest = { resolve, reject };
this._menupopup = this._getMenupopup(document);
this._menuitem = this._menupopup.firstElementChild;
this._addMenupopupEventListeners();
let mouseXInCSSPixels = {};
let mouseYInCSSPixels = {};
document.ownerGlobal.windowUtils.getLastOverWindowPointerLocationInCSSPixels(
mouseXInCSSPixels,
mouseYInCSSPixels
);
this._menuitem.disabled = true;
this._startWatchingForSpammyActivation();
// `openPopup` is a no-op if the popup is already opened.
// That property is used when `navigator.clipboard.readText()` or
// `navigator.clipboard.read()`is called from two different frames, e.g.
// an iframe and the top level frame. In that scenario, the two frames
// correspond to different `navigator.clipboard` instances. When
// `readText()` or `read()` is called from both frames, an actor pair is
// instantiated for each of them. Both actor parents will call `openPopup`
// on the same `_menupopup` object. If the popup is already open,
// `openPopup` is a no-op. When the popup is clicked or dismissed both
// actor parents will receive the corresponding event.
this._menupopup.openPopup(
null,
"overlap" /* options */,
mouseXInCSSPixels.value,
mouseYInCSSPixels.value,
true /* isContextMenu */
);
this._refreshDelayTimer(document);
});
},
_addMenupopupEventListeners() {
this._menupopup.addEventListener("command", this);
this._menupopup.addEventListener("popuphiding", this);
},
_removeMenupopupEventListeners() {
this._menupopup.removeEventListener("command", this);
this._menupopup.removeEventListener("popuphiding", this);
},
_createMenupopup(aChromeDoc) {
let menuitem = aChromeDoc.createXULElement("menuitem");
menuitem.id = "clipboardReadPasteMenuItem";
aChromeDoc.l10n.setAttributes(menuitem, "text-action-paste");
let menupopup = aChromeDoc.createXULElement("menupopup");
menupopup.id = this.MENU_POPUP_ID;
menupopup.appendChild(menuitem);
return menupopup;
},
_getMenupopup(aChromeDoc) {
let menupopup = aChromeDoc.getElementById(this.MENU_POPUP_ID);
if (menupopup == null) {
menupopup = this._createMenupopup(aChromeDoc);
const parent =
aChromeDoc.querySelector("popupset") || aChromeDoc.documentElement;
parent.appendChild(menupopup);
}
return menupopup;
},
_startWatchingForSpammyActivation() {
let doc = this._menuitem.ownerDocument;
doc.addEventListener("keydown", this, {
capture: true,
mozSystemGroup: true,
});
},
_stopWatchingForSpammyActivation() {
let doc = this._menuitem.ownerDocument;
doc.removeEventListener("keydown", this, {
capture: true,
mozSystemGroup: true,
});
},
_delayTimer: null,
_clearDelayTimer() {
if (this._delayTimer) {
let window = this._menuitem.ownerGlobal;
window.clearTimeout(this._delayTimer);
this._delayTimer = null;
}
},
_refreshDelayTimer() {
this._clearDelayTimer();
let window = this._menuitem.ownerGlobal;
let delay = Services.prefs.getIntPref("security.dialog_enable_delay");
this._delayTimer = window.setTimeout(() => {
this._menuitem.disabled = false;
this._stopWatchingForSpammyActivation();
this._delayTimer = null;
}, delay);
},
};
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