/usr/share/gnome-shell/js/ui/modalDialog.js is in gnome-shell-common 3.4.1-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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const Clutter = imports.gi.Clutter;
const Gdk = imports.gi.Gdk;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const Pango = imports.gi.Pango;
const St = imports.gi.St;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const Atk = imports.gi.Atk;
const Params = imports.misc.params;
const Lightbox = imports.ui.lightbox;
const Main = imports.ui.main;
const Tweener = imports.ui.tweener;
const OPEN_AND_CLOSE_TIME = 0.1;
const FADE_IN_BUTTONS_TIME = 0.33;
const FADE_OUT_DIALOG_TIME = 1.0;
const State = {
OPENED: 0,
CLOSED: 1,
OPENING: 2,
CLOSING: 3,
FADED_OUT: 4
};
const ModalDialog = new Lang.Class({
Name: 'ModalDialog',
_init: function(params) {
params = Params.parse(params, { shellReactive: false,
styleClass: null });
this.state = State.CLOSED;
this._hasModal = false;
this._shellReactive = params.shellReactive;
this._group = new St.Widget({ visible: false,
x: 0,
y: 0,
accessible_role: Atk.Role.DIALOG });
Main.uiGroup.add_actor(this._group);
let constraint = new Clutter.BindConstraint({ source: global.stage,
coordinate: Clutter.BindCoordinate.ALL });
this._group.add_constraint(constraint);
this._group.connect('destroy', Lang.bind(this, this._onGroupDestroy));
this._actionKeys = {};
this._group.connect('key-press-event', Lang.bind(this, this._onKeyPressEvent));
this._backgroundBin = new St.Bin();
this._group.add_actor(this._backgroundBin);
this._dialogLayout = new St.BoxLayout({ style_class: 'modal-dialog',
vertical: true });
if (params.styleClass != null) {
this._dialogLayout.add_style_class_name(params.styleClass);
}
if (!this._shellReactive) {
this._lightbox = new Lightbox.Lightbox(this._group,
{ inhibitEvents: true });
this._lightbox.highlight(this._backgroundBin);
let stack = new Shell.Stack();
this._backgroundBin.child = stack;
this._eventBlocker = new Clutter.Group({ reactive: true });
stack.add_actor(this._eventBlocker);
stack.add_actor(this._dialogLayout);
} else {
this._backgroundBin.child = this._dialogLayout;
}
this.contentLayout = new St.BoxLayout({ vertical: true });
this._dialogLayout.add(this.contentLayout,
{ x_fill: true,
y_fill: true,
x_align: St.Align.MIDDLE,
y_align: St.Align.START });
this._buttonLayout = new St.BoxLayout({ style_class: 'modal-dialog-button-box',
visible: false,
vertical: false });
this._dialogLayout.add(this._buttonLayout,
{ expand: true,
x_align: St.Align.MIDDLE,
y_align: St.Align.END });
global.focus_manager.add_group(this._dialogLayout);
this._initialKeyFocus = this._dialogLayout;
this._initialKeyFocusDestroyId = 0;
this._savedKeyFocus = null;
},
destroy: function() {
this._group.destroy();
},
setButtons: function(buttons) {
let hadChildren = this._buttonLayout.get_children() > 0;
this._buttonLayout.destroy_all_children();
this._actionKeys = {};
this._buttonLayout.visible = (buttons.length > 0);
for (let i = 0; i < buttons.length; i++) {
let buttonInfo = buttons[i];
let label = buttonInfo['label'];
let action = buttonInfo['action'];
let key = buttonInfo['key'];
buttonInfo.button = new St.Button({ style_class: 'modal-dialog-button',
reactive: true,
can_focus: true,
label: label });
let x_alignment;
if (buttons.length == 1)
x_alignment = St.Align.END;
else if (i == 0)
x_alignment = St.Align.START;
else if (i == buttons.length - 1)
x_alignment = St.Align.END;
else
x_alignment = St.Align.MIDDLE;
if (!this._initialKeyFocusDestroyId)
this._initialKeyFocus = buttonInfo.button;
this._buttonLayout.add(buttonInfo.button,
{ expand: true,
x_fill: false,
y_fill: false,
x_align: x_alignment,
y_align: St.Align.MIDDLE });
buttonInfo.button.connect('clicked', action);
if (key)
this._actionKeys[key] = action;
}
// Fade in buttons if there weren't any before
if (!hadChildren && buttons.length > 0) {
this._buttonLayout.opacity = 0;
Tweener.addTween(this._buttonLayout,
{ opacity: 255,
time: FADE_IN_BUTTONS_TIME,
transition: 'easeOutQuad',
onComplete: Lang.bind(this, function() {
this.emit('buttons-set');
})
});
} else {
this.emit('buttons-set');
}
},
_onKeyPressEvent: function(object, keyPressEvent) {
let symbol = keyPressEvent.get_key_symbol();
let action = this._actionKeys[symbol];
if (action)
action();
},
_onGroupDestroy: function() {
this.emit('destroy');
},
_fadeOpen: function() {
let monitor = Main.layoutManager.focusMonitor;
this._backgroundBin.set_position(monitor.x, monitor.y);
this._backgroundBin.set_size(monitor.width, monitor.height);
this.state = State.OPENING;
this._dialogLayout.opacity = 255;
if (this._lightbox)
this._lightbox.show();
this._group.opacity = 0;
this._group.show();
Tweener.addTween(this._group,
{ opacity: 255,
time: OPEN_AND_CLOSE_TIME,
transition: 'easeOutQuad',
onComplete: Lang.bind(this,
function() {
this.state = State.OPENED;
this.emit('opened');
})
});
},
setInitialKeyFocus: function(actor) {
if (this._initialKeyFocusDestroyId)
this._initialKeyFocus.disconnect(this._initialKeyFocusDestroyId);
this._initialKeyFocus = actor;
this._initialKeyFocusDestroyId = actor.connect('destroy', Lang.bind(this, function() {
this._initialKeyFocus = this._dialogLayout;
this._initialKeyFocusDestroyId = 0;
}));
},
open: function(timestamp) {
if (this.state == State.OPENED || this.state == State.OPENING)
return true;
if (!this.pushModal(timestamp))
return false;
this._fadeOpen();
return true;
},
close: function(timestamp) {
if (this.state == State.CLOSED || this.state == State.CLOSING)
return;
this.state = State.CLOSING;
this.popModal(timestamp);
this._savedKeyFocus = null;
Tweener.addTween(this._group,
{ opacity: 0,
time: OPEN_AND_CLOSE_TIME,
transition: 'easeOutQuad',
onComplete: Lang.bind(this,
function() {
this.state = State.CLOSED;
this._group.hide();
})
});
},
// Drop modal status without closing the dialog; this makes the
// dialog insensitive as well, so it needs to be followed shortly
// by either a close() or a pushModal()
popModal: function(timestamp) {
if (!this._hasModal)
return;
let focus = global.stage.key_focus;
if (focus && this._group.contains(focus))
this._savedKeyFocus = focus;
else
this._savedKeyFocus = null;
Main.popModal(this._group, timestamp);
global.gdk_screen.get_display().sync();
this._hasModal = false;
if (!this._shellReactive)
this._eventBlocker.raise_top();
},
pushModal: function (timestamp) {
if (this._hasModal)
return true;
if (!Main.pushModal(this._group, timestamp))
return false;
this._hasModal = true;
if (this._savedKeyFocus) {
this._savedKeyFocus.grab_key_focus();
this._savedKeyFocus = null;
} else
this._initialKeyFocus.grab_key_focus();
if (!this._shellReactive)
this._eventBlocker.lower_bottom();
return true;
},
// This method is like close, but fades the dialog out much slower,
// and leaves the lightbox in place. Once in the faded out state,
// the dialog can be brought back by an open call, or the lightbox
// can be dismissed by a close call.
//
// The main point of this method is to give some indication to the user
// that the dialog reponse has been acknowledged but will take a few
// moments before being processed.
// e.g., if a user clicked "Log Out" then the dialog should go away
// imediately, but the lightbox should remain until the logout is
// complete.
_fadeOutDialog: function(timestamp) {
if (this.state == State.CLOSED || this.state == State.CLOSING)
return;
if (this.state == State.FADED_OUT)
return;
this.popModal(timestamp);
Tweener.addTween(this._dialogLayout,
{ opacity: 0,
time: FADE_OUT_DIALOG_TIME,
transition: 'easeOutQuad',
onComplete: Lang.bind(this,
function() {
this.state = State.FADED_OUT;
})
});
}
});
Signals.addSignalMethods(ModalDialog.prototype);
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