Bug 561588 – New run dialog

Add a new clutter-based "Run Dialog" and trigger that off of Alt-F2
instead of running a gnome-terminal instance.

Patch from Sander Dijkhuis.

svn path=/trunk/; revision=64

js/ui/main.js

@@ -5,12 +5,14 @@ const Clutter = imports.gi.Clutter;
 
 const Panel = imports.ui.panel;
 const Overlay = imports.ui.overlay;
+const RunDialog = imports.ui.run_dialog;
 
 const DEFAULT_BACKGROUND_COLOR = new Clutter.Color();
 DEFAULT_BACKGROUND_COLOR.from_pixel(0x2266bbff);
 
 let panel = null;
 let overlay = null;
+let run_dialog = null;
 
 function start() {
     let global = Shell.global_get();
@@ -27,9 +29,15 @@ function start() {
 	children[i].destroy();
 
     global.connect('panel-run-dialog', function(panel) {
-      log("showing main menu!");
-      var p = new Shell.Process({'args' : ['gnome-terminal', 'gnome-terminal']})
-      p.run()
+        // Make sure not more than one run dialog is shown.
+        if (!run_dialog) {
+            run_dialog = new RunDialog.RunDialog();
+            run_dialog.on_run = run_dialog.on_cancel = function() {
+                run_dialog.destroy();
+                run_dialog = null;
+            };
+            run_dialog.show();
+        }
     });
 
     panel = new Panel.Panel();

js/ui/run_dialog.js

@@ -0,0 +1,122 @@
+/* -*- mode: js2; js2-basic-offset: 4; -*- */
+
+const Shell = imports.gi.Shell;
+const Clutter = imports.gi.Clutter;
+
+const Main = imports.ui.main;
+
+const OVERLAY_COLOR = new Clutter.Color();
+OVERLAY_COLOR.from_pixel(0x00000044);
+
+const BOX_BACKGROUND_COLOR = new Clutter.Color();
+BOX_BACKGROUND_COLOR.from_pixel(0x000000cc);
+
+const BOX_TEXT_COLOR = new Clutter.Color();
+BOX_TEXT_COLOR.from_pixel(0xffffffff);
+
+const BOX_WIDTH = 320;
+const BOX_HEIGHT = 56;
+
+function RunDialog() {
+    this._init();
+};
+
+RunDialog.prototype = {
+    // Event handlers that can be set by the caller.
+    on_run : null,
+    on_cancel : null,
+
+    _init : function() {
+        let global = Shell.global_get();
+
+        // All actors are inside _group.
+        this._group = new Clutter.Group();
+        global.stage.add_actor(this._group);
+
+        this._overlay = new Clutter.Rectangle({ color: OVERLAY_COLOR,
+                                                width: global.screen_width,
+                                                height: global.screen_height,
+                                                border_width: 0,
+                                                reactive: true });
+        this._group.add_actor(this._overlay);
+
+        let boxGroup = new Clutter.Group();
+        boxGroup.set_position((global.screen_width - BOX_WIDTH) / 2,
+                              (global.screen_height - BOX_HEIGHT) / 2);
+        this._group.add_actor(boxGroup);
+
+        let box = new Clutter.Rectangle({ color: BOX_BACKGROUND_COLOR,
+                                          reactive: false,
+                                          width: BOX_WIDTH,
+                                          height: BOX_HEIGHT,
+                                          border_width: 0 });
+        boxGroup.add_actor(box);
+
+        let label = new Clutter.Label({ color: BOX_TEXT_COLOR,
+                                        font_name: '18px Sans',
+                                        text: 'Please enter a command:' });
+        label.set_position(6, 6);
+        boxGroup.add_actor(label);
+
+        this._entry = new Clutter.Entry({ color: BOX_TEXT_COLOR,
+                                          font_name: '20px Sans Bold',
+                                          reactive: true,
+                                          text: '',
+                                          entry_padding: 0,
+                                          width: BOX_WIDTH - 12,
+                                          height: BOX_HEIGHT - 12 });
+        // TODO: Implement relative positioning using Tidy.
+        this._entry.set_position(6, 30);
+        boxGroup.add_actor(this._entry);
+
+        let me = this;
+
+        this._entry.connect('activate', function (o, e) {
+            me.hide();
+            me._run(o.get_text());
+            return false;
+        });
+
+        // TODO: Detect escape key and make it cancel the operation.
+        //       Use me.on_cancel() if it exists. Something like this:
+        // this._entry.connect('key-press-event', function(o, e) {
+        //     if (the pressed key is the escape key) {
+        //         me.hide();
+        //         if (me.on_cancel)
+        //             me.on_cancel();
+        //         return false;
+        //     } else
+        //         return true;
+        // });
+
+        global.focus_stage();
+        global.stage.set_key_focus(this._entry);
+    },
+
+    _run : function(command) {
+        if (command) {
+            var p = new Shell.Process({'args' : [command]});
+            try {
+                p.run();
+            } catch (e) {
+                // TODO: Give the user direct feedback.
+                log('Could not run command ' + command + '.');
+            }
+        }
+
+        if (this.on_run)
+            this.on_run();
+    },
+
+    show : function() {
+        this._group.show_all();
+    },
+
+    hide : function() {
+        this._group.hide();
+    },
+
+    destroy : function(){
+        this._group.destroy();
+    }
+};