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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 { EnableDelayHelper } = ChromeUtils.importESModule(
"resource://gre/modules/PromptUtils.sys.mjs"
);
let dialog = {
/**
* This function initializes the content of the dialog.
*/
initialize() {
let args = window.arguments[0].wrappedJSObject || window.arguments[0];
let {
handler,
principal,
outArgs,
canPersistPermission,
preferredHandlerName,
browsingContext,
} = args;
this._handlerInfo = handler.QueryInterface(Ci.nsIHandlerInfo);
this._principal = principal?.QueryInterface(Ci.nsIPrincipal);
this._addonPolicy =
this._principal?.addonPolicy ?? this._principal?.contentScriptAddonPolicy;
this._browsingContext = browsingContext;
this._outArgs = outArgs.QueryInterface(Ci.nsIWritablePropertyBag);
this._preferredHandlerName = preferredHandlerName;
this._dialog = document.querySelector("dialog");
this._checkRemember = document.getElementById("remember");
this._checkRememberContainer = document.getElementById("rememberContainer");
if (!canPersistPermission) {
this._checkRememberContainer.hidden = true;
}
let changeAppLink = document.getElementById("change-app");
// allow the user to choose another application if they wish,
// but don't offer this if the protocol was opened via
// system principal (URLbar) and there's a preferred handler
if (this._preferredHandlerName && !this._principal?.isSystemPrincipal) {
changeAppLink.hidden = false;
changeAppLink.addEventListener("click", () => this.onChangeApp());
}
document.addEventListener("dialogaccept", () => this.onAccept());
this.initL10n();
this._delayHelper = new EnableDelayHelper({
disableDialog: () => {
this._dialog.setAttribute("buttondisabledaccept", true);
},
enableDialog: () => {
this._dialog.setAttribute("buttondisabledaccept", false);
},
focusTarget: window,
});
},
/**
* Checks whether the principal that triggered this dialog is top level
* (not embedded in a frame).
* @returns {boolean} - true if principal is top level, false otherwise.
* If the triggering principal is null this method always returns false.
*/
triggeringPrincipalIsTop() {
if (!this._principal) {
return false;
}
let topContentPrincipal =
this._browsingContext?.top.embedderElement?.contentPrincipal;
if (!topContentPrincipal) {
return false;
}
return this._principal.equals(topContentPrincipal);
},
/**
* Determines the l10n ID to use for the dialog description, depending on
* the triggering principal and the preferred application handler.
*/
get l10nDescriptionId() {
if (this._addonPolicy) {
if (this._preferredHandlerName) {
return "permission-dialog-description-extension-app";
}
return "permission-dialog-description-extension";
}
if (this._principal?.schemeIs("file")) {
if (this._preferredHandlerName) {
return "permission-dialog-description-file-app";
}
return "permission-dialog-description-file";
}
if (this._principal?.isSystemPrincipal && this._preferredHandlerName) {
return "permission-dialog-description-system-app";
}
if (this._principal?.isSystemPrincipal && !this._preferredHandlerName) {
return "permission-dialog-description-system-noapp";
}
// We only show the website address if the request didn't come from the top
// level frame. If we can't get a host to display, fall back to the copy
// without host.
if (!this.triggeringPrincipalIsTop() && this.displayPrePath) {
if (this._preferredHandlerName) {
return "permission-dialog-description-host-app";
}
return "permission-dialog-description-host";
}
if (this._preferredHandlerName) {
return "permission-dialog-description-app";
}
return "permission-dialog-description";
},
/**
* Determines the l10n ID to use for the "remember permission" checkbox,
* depending on the triggering principal and the preferred application
* handler.
*/
get l10nCheckboxId() {
if (!this._principal) {
return null;
}
if (this._addonPolicy) {
return "permission-dialog-remember-extension";
}
if (this._principal.schemeIs("file")) {
return "permission-dialog-remember-file";
}
return "permission-dialog-remember";
},
/**
* Computes the prePath to show in the prompt. It's the prePath of the site
* that wants to navigate to the external protocol.
* @returns {string|null} - prePath to show, or null if we can't derive an
* exposable prePath from the triggering principal.
*/
get displayPrePath() {
if (!this._principal) {
return null;
}
// NullPrincipals don't expose a meaningful prePath. Instead use the
// precursorPrincipal, which the NullPrincipal was derived from.
if (this._principal.isNullPrincipal) {
return this._principal.precursorPrincipal?.exposablePrePath;
}
return this._principal?.exposablePrePath;
},
initL10n() {
// The UI labels depend on whether we will show the application chooser next
// or directly open the assigned protocol handler.
// Fluent id for dialog accept button
let idAcceptButton;
let acceptButton = this._dialog.getButton("accept");
if (this._preferredHandlerName) {
idAcceptButton = "permission-dialog-btn-open-link";
} else {
idAcceptButton = "permission-dialog-btn-choose-app";
let descriptionExtra = document.getElementById("description-extra");
descriptionExtra.hidden = false;
acceptButton.addEventListener("click", () => this.onChangeApp());
}
document.l10n.setAttributes(acceptButton, idAcceptButton);
let description = document.getElementById("description");
let host = this.displayPrePath;
let scheme = this._handlerInfo.type;
document.l10n.setAttributes(description, this.l10nDescriptionId, {
host,
scheme,
extension: this._addonPolicy?.name,
appName: this._preferredHandlerName,
});
if (!this._checkRememberContainer.hidden) {
let checkboxLabel = document.getElementById("remember-label");
document.l10n.setAttributes(checkboxLabel, this.l10nCheckboxId, {
host,
scheme,
});
}
},
onAccept() {
this._outArgs.setProperty("remember", this._checkRemember.checked);
this._outArgs.setProperty("granted", true);
},
onChangeApp() {
this._outArgs.setProperty("resetHandlerChoice", true);
// We can't call the dialogs accept handler here. If the accept button is
// still disabled, it will prevent closing.
this.onAccept();
window.close();
},
};
window.addEventListener("DOMContentLoaded", () => dialog.initialize(), {
once: true,
});
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