gnome-shell/js/ui/wanda.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Clutter = imports.gi.Clutter;
const GdkPixbuf = imports.gi.GdkPixbuf;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const St = imports.gi.St;
const IconGrid = imports.ui.iconGrid;
const Main = imports.ui.main;
const Search = imports.ui.search;
// we could make these gsettings
const FISH_NAME = 'wanda';
const FISH_SPEED = 300;
const FISH_COMMAND = 'fortune';
const GNOME_PANEL_PIXMAPDIR = '../gnome-panel/pixmaps';
const FISH_GROUP = 'Fish Animation';
const MAGIC_FISH_KEY = 'free the fish';
const WandaIcon = new Lang.Class({
Name: 'WandaIcon',
Extends: IconGrid.BaseIcon,
_init : function(fish, label, params) {
this._fish = fish;
let file = GLib.build_filenamev([global.datadir, GNOME_PANEL_PIXMAPDIR, fish + '.fish']);
if (GLib.file_test(file, GLib.FileTest.EXISTS)) {
this._keyfile = new GLib.KeyFile();
this._keyfile.load_from_file(file, GLib.KeyFileFlags.NONE);
this._imageFile = GLib.build_filenamev([global.datadir, GNOME_PANEL_PIXMAPDIR,
this._keyfile.get_string(FISH_GROUP, 'image')]);
let tmpPixbuf = GdkPixbuf.Pixbuf.new_from_file(this._imageFile);
this._imgHeight = tmpPixbuf.height;
this._imgWidth = tmpPixbuf.width / this._keyfile.get_integer(FISH_GROUP, 'frames');
} else {
this._imageFile = null;
}
this.parent(label, params);
},
createIcon: function(iconSize) {
if (this._animations)
this._animations.destroy();
if (!this._imageFile) {
return new St.Icon({ icon_name: 'face-smile',
icon_type: St.IconType.FULLCOLOR,
icon_size: iconSize
});
}
this._animations = St.TextureCache.get_default().load_sliced_image(this._imageFile, this._imgWidth, this._imgHeight);
this._animations.connect('destroy', Lang.bind(this, function() {
if (this._timeoutId)
GLib.source_remove(this._timeoutId);
this._timeoutId = 0;
this._animations = null;
}));
this._animations.connect('notify::mapped', Lang.bind(this, function() {
if (this._animations.mapped && !this._timeoutId) {
this._timeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT, FISH_SPEED, Lang.bind(this, this._update));
this._i = 0;
this._update();
} else if (!this._animations.mapped && this._timeoutId) {
GLib.source_remove(this._timeoutId);
this._timeoutId = 0;
}
}));
this._i = 0;
return this._animations;
},
_update: function() {
let n = this._animations.get_n_children();
if (n == 0) {
return true;
}
this._animations.get_child_at_index(this._i).hide();
this._i = (this._i + 1) % n;
this._animations.get_child_at_index(this._i).show();
return true;
},
});
const WandaIconBin = new Lang.Class({
Name: 'WandaIconBin',
_init: function(fish, label, params) {
this.actor = new St.Bin({ style_class: 'search-result-content',
reactive: true,
track_hover: true });
this.icon = new WandaIcon(fish, label, params);
this.actor.child = this.icon.actor;
this.actor.label_actor = this.icon.label;
},
});
const FortuneDialog = new Lang.Class({
Name: 'FortuneDialog',
_init: function(name, command) {
let text;
try {
let [res, stdout, stderr, status] = GLib.spawn_command_line_sync(command);
text = String.fromCharCode.apply(null, stdout);
} catch(e) {
text = _("Sorry, no wisdom for you today:\n%s").format(e.message);
}
this._title = new St.Label({ style_class: 'prompt-dialog-headline',
text: _("%s the Oracle says").format(name) });
this._label = new St.Label({ style_class: 'prompt-dialog-description',
text: text });
this._label.clutter_text.line_wrap = true;
this._box = new St.BoxLayout({ vertical: true,
style_class: 'prompt-dialog' // this is just to force a reasonable width
});
this._box.add(this._title, { align: St.Align.MIDDLE });
this._box.add(this._label, { expand: true });
this._button = new St.Button({ button_mask: St.ButtonMask.ONE,
style_class: 'modal-dialog',
reactive: true });
this._button.connect('clicked', Lang.bind(this, this.destroy));
this._button.child = this._box;
let monitor = Main.layoutManager.primaryMonitor;
Main.layoutManager.addChrome(this._button);
this._button.set_position(Math.floor(monitor.width / 2 - this._button.width / 2),
Math.floor(monitor.height / 2 - this._button.height / 2));
GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 10, Lang.bind(this, this.destroy));
},
destroy: function() {
this._button.destroy();
}
});
function capitalize(str) {
return str[0].toUpperCase() + str.substring(1, str.length);
}
const WandaSearchProvider = new Lang.Class({
Name: 'WandaSearchProvider',
Extends: Search.SearchProvider,
_init: function() {
this.parent(_("Your favorite Easter Egg"));
},
getResultMeta: function(fish) {
return { 'id': fish,
'name': capitalize(fish),
'createIcon': function(iconSize) {
// for DND only (maybe could be improved)
// DON'T use St.Icon here, it crashes the shell
// (dnd.js code assumes it can query the actor size
// without parenting it, while StWidget accesses
// StThemeNode in get_preferred_width/height, which
// triggers an assertion failure)
return St.TextureCache.get_default().load_icon_name(null,
'face-smile',
St.IconType.FULLCOLOR,
iconSize);
}
};
},
getInitialResultSet: function(terms) {
if (terms.join(' ') == MAGIC_FISH_KEY) {
return [ FISH_NAME ];
}
return [];
},
getSubsearchResultSet: function(previousResults, terms) {
return this.getInitialResultSet(terms);
},
activateResult: function(fish, params) {
if (this._dialog)
this._dialog.destroy();
this._dialog = new FortuneDialog(capitalize(fish), FISH_COMMAND);
},
createResultActor: function (resultMeta, terms) {
let icon = new WandaIconBin(resultMeta.id, resultMeta.name);
return icon.actor;
}
});