gnome-shell/js/ui/accessDialog.js
Florian Müllner 4fc0c513af Provide org.freedesktop.impl.portal.access implementation
If a sandboxed app requests access to some system resource (camera,
microphone, location), the portal frontend needs to ask the user
for permission. In GNOME, we want this to be a system modal dialog,
so provide an org.freedesktop.impl.portal.access implementation
that exposes a generic system modal permission dialog on the bus.

https://bugzilla.gnome.org/show_bug.cgi?id=768669
2016-07-20 17:14:12 +02:00

203 lines
7.1 KiB
JavaScript

const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Pango = imports.gi.Pango;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const CheckBox = imports.ui.checkBox;
const ModalDialog = imports.ui.modalDialog;
const RequestIface = '<node> \
<interface name="org.freedesktop.impl.portal.Request"> \
<method name="Close"/> \
</interface> \
</node>';
const AccessIface = '<node> \
<interface name="org.freedesktop.impl.portal.Access"> \
<method name="AccessDialog"> \
<arg type="o" name="handle" direction="in"/> \
<arg type="s" name="app_id" direction="in"/> \
<arg type="s" name="parent_window" direction="in"/> \
<arg type="s" name="title" direction="in"/> \
<arg type="s" name="subtitle" direction="in"/> \
<arg type="s" name="body" direction="in"/> \
<arg type="a{sv}" name="options" direction="in"/> \
<arg type="u" name="response" direction="out"/> \
<arg type="a{sv}" name="results" direction="out"/> \
</method> \
</interface> \
</node>';
const DialogResponse = {
OK: 0,
CANCEL: 1,
CLOSED: 2
};
const AccessDialog = new Lang.Class({
Name: 'AccessDialog',
Extends: ModalDialog.ModalDialog,
_init: function(invocation, handle, title, subtitle, body, options) {
this.parent({ styleClass: 'access-dialog' });
this._invocation = invocation;
this._handle = handle;
this._requestExported = false;
this._request = Gio.DBusExportedObject.wrapJSObject(RequestIface, this);
for (let option in options)
options[option] = options[option].deep_unpack();
this._buildLayout(title, subtitle, body, options);
},
_buildLayout: function(title, subtitle, body, options) {
// No support for non-modal system dialogs, so ignore the option
//let modal = options['modal'] || true;
let denyLabel = options['deny_label'] || _("Deny Access");
let grantLabel = options['grant_label'] || _("Grant Access");
let iconName = options['icon'] || null;
let choices = options['choices'] || [];
let mainContentBox = new St.BoxLayout();
mainContentBox.style_class = 'access-dialog-main-layout';
this.contentLayout.add_actor(mainContentBox);
let icon = new St.Icon({ style_class: 'access-dialog-icon',
icon_name: iconName,
y_align: Clutter.ActorAlign.START });
mainContentBox.add_actor(icon);
let messageBox = new St.BoxLayout({ vertical: true });
messageBox.style_class = 'access-dialog-content',
mainContentBox.add_actor(messageBox);
let label;
label = new St.Label({ style_class: 'access-dialog-title headline',
text: title });
messageBox.add_actor(label);
label = new St.Label({ style_class: 'access-dialog-subtitle',
text: subtitle });
label.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;
label.clutter_text.line_wrap = true;
messageBox.add_actor(label);
this._choices = new Map();
for (let i = 0; i < choices.length; i++) {
let [id, name, opts, selected] = choices[i];
if (opts.length > 0)
continue; // radio buttons, not implemented
let check = new CheckBox.CheckBox();
check.getLabelActor().text = name;
check.actor.checked = selected == "true";
messageBox.add_actor(check.actor);
this._choices.set(id, check);
}
label = new St.Label({ text: body });
label.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;
label.clutter_text.line_wrap = true;
messageBox.add_actor(label);
this.addButton({ label: denyLabel,
action: () => {
this._sendResponse(DialogResponse.CANCEL);
},
key: Clutter.KEY_Escape });
this.addButton({ label: grantLabel,
action: () => {
this._sendResponse(DialogResponse.OK);
}});
},
open: function() {
this.parent();
let connection = this._invocation.get_connection();
this._requestExported = this._request.export(connection, this._handle);
},
CloseAsync: function(invocation, params) {
if (this._invocation.get_sender() != invocation.get_sender()) {
invocation.return_error_literal(Gio.DBusError,
Gio.DBusError.ACCESS_DENIED,
'');
return;
}
this._sendResponse(DialogResponse.CLOSED);
},
_sendResponse: function(response) {
if (this._requestExported)
this._request.unexport();
this._requestExported = false;
let results = {};
if (response == DialogResponse.OK) {
for (let [id, check] of this._choices) {
let checked = check.actor.checked ? 'true' : 'false';
results[id] = new GLib.Variant('s', checked);
}
}
// Delay actual response until the end of the close animation (if any)
this.connect('closed', () => {
this._invocation.return_value(new GLib.Variant('(ua{sv})',
[response, results]));
});
this.close();
}
});
const AccessDialogDBus = new Lang.Class({
Name: 'AccessDialogDBus',
_init: function() {
this._accessDialog = null;
this._windowTracker = Shell.WindowTracker.get_default();
this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(AccessIface, this);
this._dbusImpl.export(Gio.DBus.session, '/org/freedesktop/portal/desktop');
Gio.DBus.session.own_name('org.freedesktop.impl.portal.desktop.gnome', Gio.BusNameOwnerFlags.REPLACE, null, null);
},
AccessDialogAsync: function(params, invocation) {
if (this._accessDialog) {
invocation.return_error_literal(Gio.DBusError,
Gio.DBusError.LIMITS_EXCEEDED,
'Already showing a system access dialog');
return;
}
let [handle, appId, parentWindow, title, subtitle, body, options] = params;
// We probably want to use parentWindow and global.display.focus_window
// for this check in the future
if (appId && appId + '.desktop' != this._windowTracker.focus_app.id) {
invocation.return_error_literal(Gio.DBusError,
Gio.DBusError.ACCESS_DENIED,
'Only the focused app is allowed to show a system access dialog');
return;
}
let dialog = new AccessDialog(invocation, handle, title,
subtitle, body, options);
dialog.open();
dialog.connect('closed', () => { this._accessDialog = null; });
this._accessDialog = dialog;
}
});