/usr/share/cinnamon/js/ui/appletManager.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 GLib = imports.gi.GLib;
const Gio = imports.gi.Gio;
const St = imports.gi.St;
const Cinnamon = imports.gi.Cinnamon;
const Lang = imports.lang;
const Main = imports.ui.main;
const Applet = imports.ui.applet;
const Extension = imports.ui.extension;
const ModalDialog = imports.ui.modalDialog;
// Maps uuid -> metadata object
var appletMeta;
// Maps uuid -> importer object (applet directory tree)
var applets;
// Maps applet_id -> applet objects
const appletObj = [];
var appletsLoaded = false;
// An applet can assume a role
// Instead of hardcoding looking for a particular applet,
// We let applets announce that they can fill a particular
// role, using the 'role' metadata entry.
// For now, just notifications, but could be expanded.
// question - should multiple applets be able to fill
// the same role?
const Roles = {
NOTIFICATIONS: 'notifications',
PANEL_LAUNCHER: 'panellauncher'
}
let enabledAppletDefinitions;
let clipboard = [];
function init() {
applets = Extension.Type.APPLET.maps.importObjects;
appletMeta = Extension.Type.APPLET.maps.meta;
appletsLoaded = false;
// Load all applet extensions, the applets themselves will be added in finishExtensionLoad
enabledAppletDefinitions = getEnabledAppletDefinitions();
for (let uuid in enabledAppletDefinitions.uuidMap) {
Extension.loadExtension(uuid, Extension.Type.APPLET);
}
appletsLoaded = true;
global.settings.connect('changed::enabled-applets', onEnabledAppletsChanged);
}
// Callback for extension.js
function finishExtensionLoad(extension) {
// Add all applet instances for this extension
let definitions = enabledAppletDefinitions.uuidMap[extension.uuid];
if (definitions) {
for(let i=0; i<definitions.length; i++) {
if (!addAppletToPanels(extension, definitions[i]))
return false;
}
}
return true;
}
// Callback for extension.js
function prepareExtensionUnload(extension, deleteConfig) {
// Remove all applet instances for this extension
for(let applet_id in extension._loadedDefinitions) {
removeAppletFromPanels(extension._loadedDefinitions[applet_id], deleteConfig);
}
}
function getEnabledAppletDefinitions() {
let result = {
// the raw list from gsettings
raw: global.settings.get_strv('enabled-applets'),
// maps uuid -> list of applet definitions
uuidMap: {},
// maps applet_id -> single applet definition
idMap: []
};
// Upgrade settings if required
checkForUpgrade(result.raw);
// Parse all definitions
for (let i=0; i<result.raw.length; i++) {
let appletDefinition = getAppletDefinition(result.raw[i]);
if(appletDefinition) {
if(!result.uuidMap[appletDefinition.uuid])
result.uuidMap[appletDefinition.uuid] = [];
result.uuidMap[appletDefinition.uuid].push(appletDefinition);
result.idMap[appletDefinition.applet_id] = appletDefinition;
}
}
return result;
}
function getAppletDefinition(definition) {
// format used in gsettings is 'panel:location:order:uuid:applet_id' where:
// - panel is something like 'panel1',
// - location is either 'left', 'center' or 'right',
// - order is an integer representing the order of the applet within the panel/location (i.e. 1st, 2nd etc..).
// - applet_id is a unique id assigned to the applet instance when added.
let elements = definition.split(":");
if (elements.length > 4) {
let panelId = parseInt(elements[0].slice(5));
let panel = Main.panelManager.panels[panelId];
let orientation;
let order;
try { order = parseInt(elements[2]); } catch(e) { order = 0; }
// Panel might not exist. Still keep definition for future use.
let location;
if (panel) {
orientation = panel.bottomPosition ? St.Side.BOTTOM : St.Side.TOP;
location = getLocation(panel, elements[1]);
}
return {
panel: panel,
panelId: panelId,
orientation: orientation,
location: location,
location_label: elements[1],
center: elements[1] == "center",
order: order,
uuid: elements[3],
applet_id: elements[4]
};
}
global.logError("Bad applet definition: " + definition);
return null;
}
function checkForUpgrade(newEnabledApplets) {
// upgrade if old version
let nextAppletId = global.settings.get_int("next-applet-id");
for (let i=0; i<newEnabledApplets.length; i++) {
let elements = newEnabledApplets[i].split(":");
if (elements.length == 4) {
newEnabledApplets[i] += ":" + nextAppletId;
nextAppletId++;
}
}
if(nextAppletId != global.settings.get_int("next-applet-id")) {
global.settings.set_int("next-applet-id", nextAppletId);
global.settings.set_strv('enabled-applets', newEnabledApplets);
return true;
}
return false;
}
function appletDefinitionsEqual(a, b) {
return ( a.panel == b.panel && a.orientation == b.orientation && a.location == b.location && a.order == b.order);
}
function onEnabledAppletsChanged() {
try {
let oldEnabledAppletDefinitions = enabledAppletDefinitions;
enabledAppletDefinitions = getEnabledAppletDefinitions();
// Remove all applet instances that do not exist in the definition anymore.
for (let applet_id in oldEnabledAppletDefinitions.idMap) {
if(!enabledAppletDefinitions.idMap[applet_id]) {
removeAppletFromPanels(oldEnabledAppletDefinitions.idMap[applet_id]);
}
}
// Unload all applet extensions that do not exist in the definition anymore.
for (let uuid in oldEnabledAppletDefinitions.uuidMap) {
if(!enabledAppletDefinitions.uuidMap[uuid]) {
Extension.unloadExtension(uuid, Extension.Type.APPLET);
}
}
// Add or move applet instances of already loaded applet extensions
for (let applet_id in enabledAppletDefinitions.idMap) {
let newDef = enabledAppletDefinitions.idMap[applet_id];
let oldDef = oldEnabledAppletDefinitions.idMap[applet_id];
if(!oldDef || !appletDefinitionsEqual(newDef, oldDef)) {
let extension = Extension.Type.APPLET.maps.objects[newDef.uuid];
if(extension) {
addAppletToPanels(extension, newDef);
}
}
}
// Make sure all applet extensions are loaded.
// Once loaded, the applets will add themselves via finishExtensionLoad
for (let uuid in enabledAppletDefinitions.uuidMap) {
Extension.loadExtension(uuid, Extension.Type.APPLET);
}
}
catch(e) {
global.logError('Failed to refresh list of applets', e);
}
Main.statusIconDispatcher.redisplay();
}
function removeAppletFromPanels(appletDefinition, deleteConfig) {
let applet = appletObj[appletDefinition.applet_id];
if (applet) {
try {
applet._onAppletRemovedFromPanel();
} catch (e) {
global.logError("Error during on_applet_removed_from_panel() call on applet: " + appletDefinition.uuid + "/" + appletDefinition.applet_id, e);
}
if (applet._panelLocation != null) {
applet._panelLocation.remove_actor(applet.actor);
applet._panelLocation = null;
}
delete applet._extension._loadedDefinitions[appletDefinition.applet_id];
delete appletObj[appletDefinition.applet_id];
if (deleteConfig)
_removeAppletConfigFile(appletDefinition.uuid, appletDefinition.applet_id);
/* normal occurs during _onAppletRemovedFromPanel, but when a panel is removed,
* appletObj hasn't had the instance removed yet, so let's run it one more time
* here when everything has been updated.
*/
callAppletInstancesChanged(appletDefinition.uuid);
}
}
function _removeAppletConfigFile(uuid, instanceId) {
let config_path = (GLib.get_home_dir() + "/" +
".cinnamon" + "/" +
"configs" + "/" +
uuid + "/" +
instanceId + ".json");
let file = Gio.File.new_for_path(config_path);
if (file.query_exists(null)) {
try {
file.delete(null, null);
} catch (e) {
global.logError("Problem removing applet config file during cleanup. UUID is " + uuid + " and filename is " + config_path);
}
}
}
function addAppletToPanels(extension, appletDefinition) {
if (!appletDefinition.panel) return true;
try {
// Create the applet
let applet = createApplet(extension, appletDefinition);
if(applet == null)
return false;
// Now actually lock the applets role and set the provider
extension.lockRole(applet);
applet._order = appletDefinition.order;
applet._extension = extension;
// Remove it from its previous panel location (if it had one)
if (applet._panelLocation != null) {
applet._panelLocation.remove_actor(applet.actor);
applet._panelLocation = null;
}
let location = appletDefinition.location;
let before = location.get_children()
.find(x => (x._applet instanceof Applet.Applet) &&
(appletDefinition.order < x._applet._order));
if (before)
location.insert_before(applet.actor, before);
else
location.add_actor(applet.actor);
applet._panelLocation = location;
if(!extension._loadedDefinitions) {
extension._loadedDefinitions = {};
}
extension._loadedDefinitions[appletDefinition.applet_id] = appletDefinition;
applet.on_applet_added_to_panel_internal(appletsLoaded);
return true;
} catch(e) {
extension.unlockRole();
extension.logError('Failed to load applet: ' + appletDefinition.uuid + "/" + appletDefinition.applet_id, e);
return false;
}
}
function get_role_provider(role) {
if (Extension.Type.APPLET.roles[role]) {
return Extension.Type.APPLET.roles[role].roleProvider;
}
return null;
}
function get_role_provider_exists(role) {
return get_role_provider(role) != null;
}
function createApplet(extension, appletDefinition) {
if (!appletDefinition.panel) return null;
let applet_id = appletDefinition.applet_id;
let orientation = appletDefinition.orientation;
let panel_height = appletDefinition.panel.actor.get_height();
if (appletObj[applet_id] != undefined) {
global.log(applet_id + ' applet already loaded');
if (appletObj[applet_id]._panelHeight != panel_height) {
appletObj[applet_id].setPanelHeight(panel_height);
}
appletObj[applet_id].setOrientation(orientation);
return appletObj[applet_id];
}
let applet;
try {
applet = extension.module.main(extension.meta, orientation, panel_height, applet_id);
} catch (e) {
extension.logError('Failed to evaluate \'main\' function on applet: ' + appletDefinition.uuid + "/" + appletDefinition.applet_id, e);
return null;
}
appletObj[applet_id] = applet;
applet._uuid = extension.uuid;
applet._meta = extension.meta;
applet.instance_id = applet_id;
applet.panel = appletDefinition.panel;
applet.finalizeContextMenu();
return(applet);
}
function _removeAppletFromPanel(uuid, applet_id) {
let enabledApplets = enabledAppletDefinitions.raw;
for (let i=0; i<enabledApplets.length; i++) {
let appletDefinition = getAppletDefinition(enabledApplets[i]);
if (appletDefinition) {
if (uuid == appletDefinition.uuid && applet_id == appletDefinition.applet_id) {
let newEnabledApplets = enabledApplets.slice(0);
newEnabledApplets.splice(i, 1);
global.settings.set_strv('enabled-applets', newEnabledApplets);
break;
}
}
}
}
function saveAppletsPositions() {
let zones_strings = ["left", "center", "right"];
let allApplets = new Array();
for (var i in Main.panelManager.panels){
let panel = Main.panelManager.panels[i];
if (!panel) continue;
for (var j in zones_strings){
let zone_string = zones_strings[j];
let zone = panel["_"+zone_string+"Box"];
let children = zone.get_children();
for (var k in children) if (children[k]._applet) allApplets.push(children[k]._applet);
}
}
let applets = new Array();
for (var i in Main.panelManager.panels){
let panel = Main.panelManager.panels[i];
if (!panel)
continue;
let panel_string = "panel" + i;
for (var j in zones_strings){
let zone_string = zones_strings[j];
let zone = panel["_"+zone_string+"Box"];
for (var k in allApplets){
let applet = allApplets[k];
let appletZone;
if (applet._newPanelLocation != null)
appletZone = applet._newPanelLocation;
else
appletZone = applet._panelLocation;
let appletOrder;
if (applet._newOrder != null)
appletOrder = applet._newOrder;
else
appletOrder = applet._order;
if (appletZone == zone)
applets.push(panel_string+":"+zone_string+":"+appletOrder+":"+applet._uuid+":"+applet.instance_id);
}
}
}
for (var i in allApplets){
allApplets[i]._newPanelLocation = null;
allApplets[i]._newOrder = null;
}
global.settings.set_strv('enabled-applets', applets);
}
function updateAppletPanelHeights(force_recalc) {
if(!enabledAppletDefinitions)
return;
for (let applet_id in enabledAppletDefinitions.idMap) {
if (appletObj[applet_id]) {
let appletDefinition = enabledAppletDefinitions.idMap[applet_id];
let newheight = appletDefinition.panel.actor.get_height();
if (appletObj[applet_id]._panelHeight != newheight || force_recalc) {
appletObj[applet_id].setPanelHeight(newheight);
}
}
}
}
// Deprecated, kept for compatibility reasons
function _find_applet(uuid) {
return Extension.findExtensionDirectory(uuid, Extension.Type.APPLET);
}
function get_object_for_instance (appletId) {
if (appletId in appletObj) {
return appletObj[appletId];
} else {
return null;
}
}
function get_object_for_uuid (uuid, instanceId) {
return appletObj.find(x => x && (x._uuid == uuid || x.instance_id == instanceId));
}
/**
* loadAppletsOnPanel:
* @panel (Panel.Panel): The panel
*
* Loads all applets on the panel if not loaded
*/
function loadAppletsOnPanel(panel) {
let orientation = panel.bottomPosition ? St.Side.BOTTOM : St.Side.TOP;
let definition;
for (let applet_id in enabledAppletDefinitions.idMap){
definition = enabledAppletDefinitions.idMap[applet_id];
if(definition.panelId == panel.panelId) {
definition.panel = panel;
definition.location = getLocation(panel, definition.location_label);
definition.orientation = orientation;
let extension = Extension.Type.APPLET.maps.objects[definition.uuid];
if(extension) {
addAppletToPanels(extension, definition);
}
}
}
}
/**
* updateAppletsOnPanel:
* @panel (Panel.Panel): The panel
*
* Updates the definition, orientation and height of applets on the panel
*/
function updateAppletsOnPanel (panel) {
let height = panel.actor.get_height();
let orientation = panel.bottomPosition ? St.Side.BOTTOM : St.Side.TOP;
let definition;
for (let applet_id in enabledAppletDefinitions.idMap){
definition = enabledAppletDefinitions.idMap[applet_id];
if(definition.panel == panel) {
definition.location = getLocation(panel, definition.location_label);
definition.orientation = orientation;
if (appletObj[applet_id]) {
try {
appletObj[applet_id].setPanelHeight(height);
appletObj[applet_id].setOrientation(orientation);
} catch (e) {
global.logError("Error during setPanelHeight() and setOrientation() call on applet: " + definition.uuid + "/" + applet_id, e);
}
}
}
}
}
/**
* unloadAppletsOnPanel:
* @panel (Panel.Panel): The panel
*
* Unloads all applets on the panel
*/
function unloadAppletsOnPanel (panel) {
enabledAppletDefinitions.idMap
.filter(x => x.panel == panel)
.forEach(removeAppletFromPanels);
}
function copyAppletConfiguration(panelId) {
clipboard = enabledAppletDefinitions.idMap.filter(x => x.panelId == panelId);
}
function clearAppletConfiguration(panelId) {
let raw = global.settings.get_strv("enabled-applets");
raw = raw.filter(x => x.split(":")[0].slice(5) != panelId);
global.settings.set_strv("enabled-applets", raw);
}
function pasteAppletConfiguration(panelId) {
clearAppletConfiguration(panelId);
let raw = global.settings.get_strv("enabled-applets");
let skipped = false;
let len = clipboard.length;
let nextId = global.settings.get_int("next-applet-id");
for (let i = 0; i < len; i++) {
let max = Extension.get_max_instances(clipboard[i].uuid, Extension.Type.APPLET);
if (max == -1) {
raw.push("panel" + panelId + ":" + clipboard[i].location_label + ":" + clipboard[i].order + ":" + clipboard[i].uuid + ":" + nextId);
nextId ++;
continue;
}
let curr = enabledAppletDefinitions.uuidMap[clipboard[i].uuid];
let count = curr.length;
if (count >= max) { // If we have more applets that allowed, we see if we any of them are removed above
let i = count;
while (i--) { // Do a reverse loop because the value of count will change
if (curr[i].panelId == panelId) count --;
}
}
}
clipboard.forEach(function(x) {
let uuid = x.uuid
let max = Extension.get_max_instances(uuid);
if (max == -1 || raw.filter(a => a.split(":")[2] == uuid).length < max) {
raw.push("panel" + panelId + ":" + x.location_label + ":" + x.order + ":" + uuid + ":" + nextId);
nextId ++;
} else {
skipped = true;
}
});
global.settings.set_int("next-applet-id", nextId);
global.settings.set_strv("enabled-applets", raw);
if (skipped) {
let dialog = new ModalDialog.NotifyDialog(_("Certain applets do not allow multiple instances and were not copied") + "\n\n");
dialog.open();
}
}
function getRunningInstancesForUuid(uuid) {
return appletObj.filter(x => x && x._uuid == uuid);
}
function callAppletInstancesChanged(uuid) {
for (let applet_id in enabledAppletDefinitions.idMap) {
if (appletObj[applet_id]) {
if (uuid == appletObj[applet_id]._uuid) {
appletObj[applet_id].on_applet_instances_changed();
}
}
}
}
function getLocation(panel, location) {
return {"center": panel._centerBox,
"right" : panel._rightBox,
"left" : panel._leftBox}[location];
}
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