/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
/* exported init enable disable */
const {
Atk, Clutter, Gio, GLib, GMenu, GObject, Gtk, Meta, Shell, St
} = imports.gi;
const DND = imports.ui.dnd;
const Main = imports.ui.main;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;
const Signals = imports.signals;
const Gettext = imports.gettext.domain('gnome-shell-extensions');
const _ = Gettext.gettext;
const ExtensionUtils = imports.misc.extensionUtils;
const appSys = Shell.AppSystem.get_default();
const APPLICATION_ICON_SIZE = 32;
const HORIZ_FACTOR = 5;
const MENU_HEIGHT_OFFSET = 132;
const NAVIGATION_REGION_OVERSHOOT = 50;
Gio._promisify(Gio._LocalFilePrototype, 'query_info_async', 'query_info_finish');
Gio._promisify(Gio._LocalFilePrototype, 'set_attributes_async', 'set_attributes_finish');
class ActivitiesMenuItem extends PopupMenu.PopupBaseMenuItem {
constructor(button) {
super();
this._button = button;
let label = new St.Label({ text: _('Activities Overview') });
this.actor.add_child(label);
this.actor.label_actor = label;
}
activate(event) {
this._button.menu.toggle();
Main.overview.toggle();
super.activate(event);
}
}
class ApplicationMenuItem extends PopupMenu.PopupBaseMenuItem {
constructor(button, app) {
super();
this._app = app;
this._button = button;
this._iconBin = new St.Bin();
this.actor.add_child(this._iconBin);
let appLabel = new St.Label({
text: app.get_name(),
y_expand: true,
y_align: Clutter.ActorAlign.CENTER
});
this.actor.add_child(appLabel);
this.actor.label_actor = appLabel;
let textureCache = St.TextureCache.get_default();
let iconThemeChangedId = textureCache.connect('icon-theme-changed',
this._updateIcon.bind(this));
this.actor.connect('destroy', () => {
textureCache.disconnect(iconThemeChangedId);
});
this._updateIcon();
this.actor._delegate = this;
let draggable = DND.makeDraggable(this.actor);
let maybeStartDrag = draggable._maybeStartDrag;
draggable._maybeStartDrag = (event) => {
if (this._dragEnabled)
return maybeStartDrag.call(draggable, event);
return false;
};
}
activate(event) {
this._app.open_new_window(-1);
this._button.selectCategory(null);
this._button.menu.toggle();
super.activate(event);
}
setActive(active, params) {
if (active)
this._button.scrollToButton(this);
super.setActive(active, params);
}
setDragEnabled(enable) {
this._dragEnabled = enable;
}
getDragActor() {
return this._app.create_icon_texture(APPLICATION_ICON_SIZE);
}
getDragActorSource() {
return this._iconBin;
}
_updateIcon() {
this._iconBin.set_child(this.getDragActor());
}
}
class CategoryMenuItem extends PopupMenu.PopupBaseMenuItem {
constructor(button, category) {
super();
this._category = category;
this._button = button;
this._oldX = -1;
this._oldY = -1;
let name;
if (this._category)
name = this._category.get_name();
else
name = _('Favorites');
let label = new St.Label({ text: name });
this.actor.add_child(label);
this.actor.label_actor = label;
this.actor.connect('motion-event', this._onMotionEvent.bind(this));
}
activate(event) {
this._button.selectCategory(this._category);
this._button.scrollToCatButton(this);
super.activate(event);
}
_isNavigatingSubmenu([x, y]) {
let [posX, posY] = this.actor.get_transformed_position();
if (this._oldX == -1) {
this._oldX = x;
this._oldY = y;
return true;
}
let deltaX = Math.abs(x - this._oldX);
let deltaY = Math.abs(y - this._oldY);
this._oldX = x;
this._oldY = y;
// If it lies outside the x-coordinates then it is definitely outside.
if (posX > x || posX + this.actor.width < x)
return false;
// If it lies inside the menu item then it is definitely inside.
if (posY <= y && posY + this.actor.height >= y)
return true;
// We want the keep-up triangle only if the movement is more
// horizontal than vertical.
if (deltaX * HORIZ_FACTOR < deltaY)
return false;
// Check whether the point lies inside triangle ABC, and a similar
// triangle on the other side of the menu item.
//
// +---------------------+
// | menu item |
// A +---------------------+ C
// P |
// B
// Ensure that the point P always lies below line AC so that we can
// only check for triangle ABC.
if (posY > y) {
let offset = posY - y;
y = posY + this.actor.height + offset;
}
// Ensure that A is (0, 0).
x -= posX;
y -= posY + this.actor.height;
// Check which side of line AB the point P lies on by taking the
// cross-product of AB and AP. See:
// http://stackoverflow.com/questions/3461453/determine-which-side-of-a-line-a-point-lies
if (((this.actor.width * y) - (NAVIGATION_REGION_OVERSHOOT * x)) <= 0)
return true;
return false;
}
_onMotionEvent(actor, event) {
if (!Clutter.get_pointer_grab()) {
this._oldX = -1;
this._oldY = -1;
Clutter.grab_pointer(this.actor);
}
this.actor.hover = true;
if (this._isNavigatingSubmenu(event.get_coords()))
return true;
this._oldX = -1;
this._oldY = -1;
this.actor.hover = false;
Clutter.ungrab_pointer();
let source = event.get_source();
if (source instanceof St.Widget)
source.sync_hover();
return false;
}
setActive(active, params) {
if (active) {
this._button.selectCategory(this._category);
this._button.scrollToCatButton(this);
}
super.setActive(active, params);
}
}
class ApplicationsMenu extends PopupMenu.PopupMenu {
constructor(sourceActor, arrowAlignment, arrowSide, button) {
super(sourceActor, arrowAlignment, arrowSide);
this._button = button;
}
isEmpty() {
return false;
}
open(animate) {
this._button.hotCorner.setBarrierSize(0);
if (this._button.hotCorner.actor) // fallback corner
this._button.hotCorner.actor.hide();
super.open(animate);
}
close(animate) {
let size = Main.layoutManager.panelBox.height;
this._button.hotCorner.setBarrierSize(size);
if (this._button.hotCorner.actor) // fallback corner
this._button.hotCorner.actor.show();
super.close(animate);
}
toggle() {
if (this.isOpen) {
this._button.selectCategory(null);
} else {
if (Main.overview.visible)
Main.overview.hide();
}
super.toggle();
}
}
class DesktopTarget {
constructor() {
this._desktop = null;
this._desktopDestroyedId = 0;
this._windowAddedId =
global.window_group.connect('actor-added',
this._onWindowAdded.bind(this));
global.get_window_actors().forEach(a => {
this._onWindowAdded(a.get_parent(), a);
});
}
get hasDesktop() {
return this._desktop != null;
}
_onWindowAdded(group, actor) {
if (!(actor instanceof Meta.WindowActor))
return;
if (actor.meta_window.get_window_type() == Meta.WindowType.DESKTOP)
this._setDesktop(actor);
}
_setDesktop(desktop) {
if (this._desktop) {
this._desktop.disconnect(this._desktopDestroyedId);
this._desktopDestroyedId = 0;
delete this._desktop._delegate;
}
this._desktop = desktop;
this.emit('desktop-changed');
if (this._desktop) {
this._desktopDestroyedId = this._desktop.connect('destroy', () => {
this._setDesktop(null);
});
this._desktop._delegate = this;
}
}
_getSourceAppInfo(source) {
if (!(source instanceof ApplicationMenuItem))
return null;
return source._app.app_info;
}
async _markTrusted(file) {
let modeAttr = Gio.FILE_ATTRIBUTE_UNIX_MODE;
let trustedAttr = 'metadata::trusted';
let queryFlags = Gio.FileQueryInfoFlags.NONE;
let ioPriority = GLib.PRIORITY_DEFAULT;
try {
let info = await file.query_info_async(modeAttr, queryFlags, ioPriority, null);
let mode = info.get_attribute_uint32(modeAttr) | 0o100;
info.set_attribute_uint32(modeAttr, mode);
info.set_attribute_string(trustedAttr, 'yes');
await file.set_attributes_async(info, queryFlags, ioPriority, null);
// Hack: force nautilus to reload file info
info = new Gio.FileInfo();
info.set_attribute_uint64(Gio.FILE_ATTRIBUTE_TIME_ACCESS,
GLib.get_real_time());
try {
await file.set_attributes_async(info, queryFlags, ioPriority, null);
} catch (e) {
log(`Failed to update access time: ${e.message}`);
}
} catch (e) {
log(`Failed to mark file as trusted: ${e.message}`);
}
}
destroy() {
if (this._windowAddedId)
global.window_group.disconnect(this._windowAddedId);
this._windowAddedId = 0;
this._setDesktop(null);
}
handleDragOver(source, _actor, _x, _y, _time) {
let appInfo = this._getSourceAppInfo(source);
if (!appInfo)
return DND.DragMotionResult.CONTINUE;
return DND.DragMotionResult.COPY_DROP;
}
acceptDrop(source, _actor, _x, _y, _time) {
let appInfo = this._getSourceAppInfo(source);
if (!appInfo)
return false;
this.emit('app-dropped');
let desktop = GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_DESKTOP);
let src = Gio.File.new_for_path(appInfo.get_filename());
let dst = Gio.File.new_for_path(GLib.build_filenamev([desktop, src.get_basename()]));
try {
// copy_async() isn't introspectable :-(
src.copy(dst, Gio.FileCopyFlags.OVERWRITE, null, null);
this._markTrusted(dst);
} catch (e) {
log(`Failed to copy to desktop: ${e.message}`);
}
return true;
}
}
Signals.addSignalMethods(DesktopTarget.prototype);
let ApplicationsButton = GObject.registerClass(
class ApplicationsButton extends PanelMenu.Button {
_init() {
super._init(1.0, null, false);
this.setMenu(new ApplicationsMenu(this, 1.0, St.Side.TOP, this));
Main.panel.menuManager.addMenu(this.menu);
// At this moment applications menu is not keyboard navigable at
// all (so not accessible), so it doesn't make sense to set as
// role ATK_ROLE_MENU like other elements of the panel.
this.accessible_role = Atk.Role.LABEL;
let hbox = new St.BoxLayout({ style_class: 'panel-status-menu-box' });
let iconFile = Gio.File.new_for_path(
'/usr/share/icons/hicolor/scalable/apps/start-here.svg');
this._icon = new St.Icon({
gicon: new Gio.FileIcon({ file: iconFile }),
style_class: 'panel-logo-icon'
});
hbox.add_actor(this._icon);
this._label = new St.Label({
text: _('Applications'),
y_expand: true,
y_align: Clutter.ActorAlign.CENTER
});
hbox.add_child(this._label);
hbox.add_child(PopupMenu.arrowIcon(St.Side.BOTTOM));
this.add_actor(hbox);
this.name = 'panelApplications';
this.label_actor = this._label;
this.connect('captured-event', this._onCapturedEvent.bind(this));
this._showingId = Main.overview.connect('showing', () => {
this.add_accessible_state (Atk.StateType.CHECKED);
});
this._hidingId = Main.overview.connect('hiding', () => {
this.remove_accessible_state (Atk.StateType.CHECKED);
});
Main.layoutManager.connect('startup-complete',
this._setKeybinding.bind(this));
this._setKeybinding();
this._desktopTarget = new DesktopTarget();
this._desktopTarget.connect('app-dropped', () => {
this.menu.close();
});
this._desktopTarget.connect('desktop-changed', () => {
this._applicationsButtons.forEach(item => {
item.setDragEnabled(this._desktopTarget.hasDesktop);
});
});
this._tree = new GMenu.Tree({ menu_basename: 'applications.menu' });
this._treeChangedId = this._tree.connect('changed',
this._onTreeChanged.bind(this));
this._applicationsButtons = new Map();
this.reloadFlag = false;
this._createLayout();
this._display();
this._installedChangedId = appSys.connect('installed-changed',
this._onTreeChanged.bind(this));
}
_onTreeChanged() {
if (this.menu.isOpen) {
this._redisplay();
this.mainBox.show();
} else {
this.reloadFlag = true;
}
}
get hotCorner() {
return Main.layoutManager.hotCorners[Main.layoutManager.primaryIndex];
}
_createVertSeparator() {
let separator = new St.DrawingArea({
style_class: 'calendar-vertical-separator',
pseudo_class: 'highlighted'
});
separator.connect('repaint', this._onVertSepRepaint.bind(this));
return separator;
}
_onDestroy() {
Main.overview.disconnect(this._showingId);
Main.overview.disconnect(this._hidingId);
appSys.disconnect(this._installedChangedId);
this._tree.disconnect(this._treeChangedId);
this._tree = null;
let handler = Main.sessionMode.hasOverview ?
Main.overview.toggle.bind(Main.overview) : null;
Main.wm.setCustomKeybindingHandler('panel-main-menu',
Shell.ActionMode.NORMAL |
Shell.ActionMode.OVERVIEW,
handler);
this._desktopTarget.destroy();
}
_onCapturedEvent(actor, event) {
if (event.type() == Clutter.EventType.BUTTON_PRESS) {
if (!Main.overview.shouldToggleByCornerOrButton())
return true;
}
return false;
}
_onMenuKeyPress(actor, event) {
let symbol = event.get_key_symbol();
if (symbol == Clutter.KEY_Left || symbol == Clutter.KEY_Right) {
let direction = symbol == Clutter.KEY_Left ?
Gtk.DirectionType.LEFT : Gtk.DirectionType.RIGHT;
if (this.menu.actor.navigate_focus(global.stage.key_focus, direction, false))
return true;
}
return super._onMenuKeyPress(actor, event);
}
_onVertSepRepaint(area) {
let cr = area.get_context();
let themeNode = area.get_theme_node();
let [width, height] = area.get_surface_size();
let stippleColor = themeNode.get_color('-stipple-color');
let stippleWidth = themeNode.get_length('-stipple-width');
let x = Math.floor(width / 2) + 0.5;
cr.moveTo(x, 0);
cr.lineTo(x, height);
Clutter.cairo_set_source_color(cr, stippleColor);
cr.setDash([1, 3], 1); // Hard-code for now
cr.setLineWidth(stippleWidth);
cr.stroke();
}
_onOpenStateChanged(menu, open) {
if (open) {
if (this.reloadFlag) {
this._redisplay();
this.reloadFlag = false;
}
this.mainBox.show();
}
super._onOpenStateChanged(menu, open);
}
_setKeybinding() {
Main.wm.setCustomKeybindingHandler('panel-main-menu',
Shell.ActionMode.NORMAL |
Shell.ActionMode.OVERVIEW,
() => this.menu.toggle());
}
_redisplay() {
this.applicationsBox.destroy_all_children();
this.categoriesBox.destroy_all_children();
this._display();
}
_loadCategory(categoryId, dir) {
let iter = dir.iter();
let nextType;
while ((nextType = iter.next()) != GMenu.TreeItemType.INVALID) {
if (nextType == GMenu.TreeItemType.ENTRY) {
let entry = iter.get_entry();
let id;
try {
id = entry.get_desktop_file_id(); // catch non-UTF8 filenames
} catch (e) {
continue;
}
let app = appSys.lookup_app(id);
if (!app)
app = new Shell.App({ app_info: entry.get_app_info() });
if (app.get_app_info().should_show())
this.applicationsByCategory[categoryId].push(app);
} else if (nextType == GMenu.TreeItemType.SEPARATOR) {
this.applicationsByCategory[categoryId].push('separator');
} else if (nextType == GMenu.TreeItemType.DIRECTORY) {
let subdir = iter.get_directory();
if (!subdir.get_is_nodisplay())
this._loadCategory(categoryId, subdir);
}
}
}
scrollToButton(button) {
let appsScrollBoxAdj = this.applicationsScrollBox.get_vscroll_bar().get_adjustment();
let appsScrollBoxAlloc = this.applicationsScrollBox.get_allocation_box();
let currentScrollValue = appsScrollBoxAdj.get_value();
let boxHeight = appsScrollBoxAlloc.y2 - appsScrollBoxAlloc.y1;
let buttonAlloc = button.actor.get_allocation_box();
let newScrollValue = currentScrollValue;
if (currentScrollValue > buttonAlloc.y1 - 10)
newScrollValue = buttonAlloc.y1 - 10;
if (boxHeight + currentScrollValue < buttonAlloc.y2 + 10)
newScrollValue = buttonAlloc.y2 - boxHeight + 10;
if (newScrollValue != currentScrollValue)
appsScrollBoxAdj.set_value(newScrollValue);
}
scrollToCatButton(button) {
let catsScrollBoxAdj = this.categoriesScrollBox.get_vscroll_bar().get_adjustment();
let catsScrollBoxAlloc = this.categoriesScrollBox.get_allocation_box();
let currentScrollValue = catsScrollBoxAdj.get_value();
let boxHeight = catsScrollBoxAlloc.y2 - catsScrollBoxAlloc.y1;
let buttonAlloc = button.actor.get_allocation_box();
let newScrollValue = currentScrollValue;
if (currentScrollValue > buttonAlloc.y1 - 10)
newScrollValue = buttonAlloc.y1 - 10;
if (boxHeight + currentScrollValue < buttonAlloc.y2 + 10)
newScrollValue = buttonAlloc.y2 - boxHeight + 10;
if (newScrollValue != currentScrollValue)
catsScrollBoxAdj.set_value(newScrollValue);
}
_createLayout() {
let section = new PopupMenu.PopupMenuSection();
this.menu.addMenuItem(section);
this.mainBox = new St.BoxLayout({ vertical: false });
this.leftBox = new St.BoxLayout({ vertical: true });
this.applicationsScrollBox = new St.ScrollView({
x_fill: true,
y_fill: false,
y_align: St.Align.START,
style_class: 'apps-menu vfade'
});
this.applicationsScrollBox.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
let vscroll = this.applicationsScrollBox.get_vscroll_bar();
vscroll.connect('scroll-start', () => {
this.menu.passEvents = true;
});
vscroll.connect('scroll-stop', () => {
this.menu.passEvents = false;
});
this.categoriesScrollBox = new St.ScrollView({
x_fill: true,
y_fill: false,
y_align: St.Align.START,
style_class: 'vfade'
});
this.categoriesScrollBox.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
vscroll = this.categoriesScrollBox.get_vscroll_bar();
vscroll.connect('scroll-start', () => this.menu.passEvents = true);
vscroll.connect('scroll-stop', () => this.menu.passEvents = false);
this.leftBox.add(this.categoriesScrollBox, {
expand: true,
x_fill: true,
y_fill: true,
y_align: St.Align.START
});
let activities = new ActivitiesMenuItem(this);
this.leftBox.add(activities.actor, {
expand: false,
x_fill: true,
y_fill: false,
y_align: St.Align.START
});
this.applicationsBox = new St.BoxLayout({ vertical: true });
this.applicationsScrollBox.add_actor(this.applicationsBox);
this.categoriesBox = new St.BoxLayout({ vertical: true });
this.categoriesScrollBox.add_actor(this.categoriesBox);
this.mainBox.add(this.leftBox);
this.mainBox.add(this._createVertSeparator(), {
expand: false,
x_fill: false,
y_fill: true
});
this.mainBox.add(this.applicationsScrollBox, {
expand: true,
x_fill: true,
y_fill: true
});
section.actor.add_actor(this.mainBox);
}
_display() {
this._applicationsButtons.clear();
this.mainBox.style = 'width: 35em;';
this.mainBox.hide();
//Load categories
this.applicationsByCategory = {};
this._tree.load_sync();
let root = this._tree.get_root_directory();
let categoryMenuItem = new CategoryMenuItem(this, null);
this.categoriesBox.add_actor(categoryMenuItem.actor);
let iter = root.iter();
let nextType;
while ((nextType = iter.next()) != GMenu.TreeItemType.INVALID) {
if (nextType != GMenu.TreeItemType.DIRECTORY)
continue;
let dir = iter.get_directory();
if (dir.get_is_nodisplay())
continue;
let categoryId = dir.get_menu_id();
this.applicationsByCategory[categoryId] = [];
this._loadCategory(categoryId, dir);
if (this.applicationsByCategory[categoryId].length > 0) {
let categoryMenuItem = new CategoryMenuItem(this, dir);
this.categoriesBox.add_actor(categoryMenuItem.actor);
}
}
//Load applications
this._displayButtons(this._listApplications(null));
let themeContext = St.ThemeContext.get_for_stage(global.stage);
let scaleFactor = themeContext.scale_factor;
let categoriesHeight = this.categoriesBox.height / scaleFactor;
let height = Math.round(categoriesHeight) + MENU_HEIGHT_OFFSET;
this.mainBox.style += `height: ${height}px`;
}
selectCategory(dir) {
this.applicationsBox.get_children().forEach(c => {
if (c._delegate instanceof PopupMenu.PopupSeparatorMenuItem)
c._delegate.destroy();
else
this.applicationsBox.remove_actor(c);
});
if (dir)
this._displayButtons(this._listApplications(dir.get_menu_id()));
else
this._displayButtons(this._listApplications(null));
}
_displayButtons(apps) {
for (let i = 0; i < apps.length; i++) {
let app = apps[i];
let item;
if (app instanceof Shell.App)
item = this._applicationsButtons.get(app);
else
item = new PopupMenu.PopupSeparatorMenuItem();
if (!item) {
item = new ApplicationMenuItem(this, app);
item.setDragEnabled(this._desktopTarget.hasDesktop);
this._applicationsButtons.set(app, item);
}
if (!item.actor.get_parent())
this.applicationsBox.add_actor(item.actor);
}
}
_listApplications(categoryMenuId) {
let applist;
if (categoryMenuId) {
applist = this.applicationsByCategory[categoryMenuId];
} else {
applist = new Array();
let favorites = global.settings.get_strv('favorite-apps');
for (let i = 0; i < favorites.length; i++) {
let app = appSys.lookup_app(favorites[i]);
if (app)
applist.push(app);
}
}
return applist;
}
});
let appsMenuButton;
let activitiesButton;
function enable() {
activitiesButton = Main.panel.statusArea['activities'];
activitiesButton.container.hide();
appsMenuButton = new ApplicationsButton();
Main.panel.addToStatusArea('apps-menu', appsMenuButton, 1, 'left');
}
function disable() {
Main.panel.menuManager.removeMenu(appsMenuButton.menu);
appsMenuButton.destroy();
activitiesButton.container.show();
}
function init() {
ExtensionUtils.initTranslations();
}