/usr/share/cinnamon/js/ui/panelMenu.js is in cinnamon-common 2.8.6-1ubuntu1.
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 Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Cinnamon = imports.gi.Cinnamon;
const Signals = imports.signals;
const St = imports.gi.St;
const Main = imports.ui.main;
const Params = imports.misc.params;
const PopupMenu = imports.ui.popupMenu;
function ButtonBox(params) {
this._init.apply(this, arguments);
};
ButtonBox.prototype = {
_init: function(params) {
params = Params.parse(params, { style_class: 'panel-button' }, true);
this.actor = new Cinnamon.GenericContainer(params);
this.actor._delegate = this;
this.actor.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
this.actor.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
this.actor.connect('allocate', Lang.bind(this, this._allocate));
this.actor.connect('style-changed', Lang.bind(this, this._onStyleChanged));
this._minHPadding = this._natHPadding = 0.0;
},
_onStyleChanged: function(actor) {
let themeNode = actor.get_theme_node();
this._minHPadding = themeNode.get_length('-minimum-hpadding');
this._natHPadding = themeNode.get_length('-natural-hpadding');
},
_getPreferredWidth: function(actor, forHeight, alloc) {
let children = actor.get_children();
let child = children.length > 0 ? children[0] : null;
if (child) {
[alloc.min_size, alloc.natural_size] = child.get_preferred_width(-1);
} else {
alloc.min_size = alloc.natural_size = 0;
}
alloc.min_size += 2 * this._minHPadding;
alloc.natural_size += 2 * this._natHPadding;
},
_getPreferredHeight: function(actor, forWidth, alloc) {
let children = actor.get_children();
let child = children.length > 0 ? children[0] : null;
if (child) {
[alloc.min_size, alloc.natural_size] = child.get_preferred_height(-1);
} else {
alloc.min_size = alloc.natural_size = 0;
}
},
_allocate: function(actor, box, flags) {
let children = actor.get_children();
if (children.length == 0)
return;
let child = children[0];
let [minWidth, natWidth] = child.get_preferred_width(-1);
let [minHeight, natHeight] = child.get_preferred_height(-1);
let availWidth = box.x2 - box.x1;
let availHeight = box.y2 - box.y1;
let childBox = new Clutter.ActorBox();
if (natWidth + 2 * this._natHPadding <= availWidth) {
childBox.x1 = this._natHPadding;
childBox.x2 = availWidth - this._natHPadding;
} else {
childBox.x1 = this._minHPadding;
childBox.x2 = availWidth - this._minHPadding;
}
if (natHeight <= availHeight) {
childBox.y1 = Math.floor((availHeight - natHeight) / 2);
childBox.y2 = childBox.y1 + natHeight;
} else {
childBox.y1 = 0;
childBox.y2 = availHeight;
}
child.allocate(childBox, flags);
},
}
function Button(menuAlignment) {
this._init(menuAlignment);
}
Button.prototype = {
__proto__: ButtonBox.prototype,
_init: function(menuAlignment) {
ButtonBox.prototype._init.call(this, { reactive: true,
can_focus: true,
track_hover: true });
this.actor.connect('button-press-event', Lang.bind(this, this._onButtonPress));
this.actor.connect('key-press-event', Lang.bind(this, this._onSourceKeyPress));
this.menu = new PopupMenu.PopupMenu(this.actor, menuAlignment, Main.applet_side);
this.menu.actor.add_style_class_name('panel-menu');
this.menu.connect('open-state-changed', Lang.bind(this, this._onOpenStateChanged));
this.menu.actor.connect('key-press-event', Lang.bind(this, this._onMenuKeyPress));
Main.uiGroup.add_actor(this.menu.actor);
this.menu.actor.hide();
},
_onButtonPress: function(actor, event) {
if (!this.menu.isOpen) {
// Setting the max-height won't do any good if the minimum height of the
// menu is higher then the screen; it's useful if part of the menu is
// scrollable so the minimum height is smaller than the natural height
let monitor = Main.layoutManager.findMonitorForActor(this.launcher.actor);
this.menu.actor.style = ('max-height: ' +
Math.round(monitor.height - Main.panel.actor.height) +
'px;');
}
this.menu.toggle();
},
_onSourceKeyPress: function(actor, event) {
let symbol = event.get_key_symbol();
if (symbol == Clutter.KEY_space || symbol == Clutter.KEY_Return) {
this.menu.toggle();
return true;
} else if (symbol == Clutter.KEY_Escape && this.menu.isOpen) {
this.menu.close();
return true;
} else if (symbol == Clutter.KEY_Down) {
if (!this.menu.isOpen)
this.menu.toggle();
this.menu.actor.navigate_focus(this.actor, Gtk.DirectionType.DOWN, false);
return true;
} else
return false;
},
_onMenuKeyPress: function(actor, event) {
let symbol = event.get_key_symbol();
if (symbol == Clutter.KEY_Left || symbol == Clutter.KEY_Right) {
let focusManager = St.FocusManager.get_for_stage(global.stage);
let group = focusManager.get_group(this.actor);
if (group) {
let direction = (symbol == Clutter.KEY_Left) ? Gtk.DirectionType.LEFT : Gtk.DirectionType.RIGHT;
group.navigate_focus(this.actor, direction, false);
return true;
}
}
return false;
},
_onOpenStateChanged: function(menu, open) {
if (open)
this.actor.add_style_pseudo_class('active');
else
this.actor.remove_style_pseudo_class('active');
},
destroy: function() {
this.actor._delegate = null;
this.menu.destroy();
this.actor.destroy();
this.emit('destroy');
}
};
Signals.addSignalMethods(Button.prototype);
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