[gnome-shell/wip/hadess/welcome-tour: 1/3] welcomeDialog: Add “welcome” dialog




commit 89ef1e791e4aa49a3a38d3b696af96f4ee039539
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Feb 1 10:20:48 2021 +0100

    welcomeDialog: Add “welcome” dialog
    
    As designed at:
    https://gitlab.gnome.org/Teams/Design/os-mockups/-/blob/master/greeter/welcome-dialog.png
    
    Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3632

 data/gnome-shell-theme.gresource.xml |   1 +
 data/theme/gnome-shell-start.svg     | 343 +++++++++++++++++++++++++++++++++++
 js/js-resources.gresource.xml        |   1 +
 js/ui/main.js                        |  11 ++
 js/ui/welcomeDialog.js               | 173 ++++++++++++++++++
 po/POTFILES.in                       |   1 +
 6 files changed, 530 insertions(+)
---
diff --git a/data/gnome-shell-theme.gresource.xml b/data/gnome-shell-theme.gresource.xml
index 025630faf5..5b42be8b7e 100644
--- a/data/gnome-shell-theme.gresource.xml
+++ b/data/gnome-shell-theme.gresource.xml
@@ -10,6 +10,7 @@
     <file>dash-placeholder.svg</file>
     <file>gnome-shell.css</file>
     <file>gnome-shell-high-contrast.css</file>
+    <file>gnome-shell-start.svg</file>
     <file alias="icons/scalable/status/message-indicator-symbolic.svg">message-indicator-symbolic.svg</file>
     <file>no-events.svg</file>
     <file>no-notifications.svg</file>
diff --git a/data/theme/gnome-shell-start.svg b/data/theme/gnome-shell-start.svg
new file mode 100644
index 0000000000..af139cf0da
--- /dev/null
+++ b/data/theme/gnome-shell-start.svg
@@ -0,0 +1,343 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
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+   xmlns:cc="http://creativecommons.org/ns#";
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+   xmlns:svg="http://www.w3.org/2000/svg";
+   xmlns="http://www.w3.org/2000/svg";
+   xmlns:xlink="http://www.w3.org/1999/xlink";
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+   version="1.1"
+   viewBox="0 0 600 400"
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diff --git a/js/js-resources.gresource.xml b/js/js-resources.gresource.xml
index e7c0dda007..16a17e19f0 100644
--- a/js/js-resources.gresource.xml
+++ b/js/js-resources.gresource.xml
@@ -106,6 +106,7 @@
     <file>ui/unlockDialog.js</file>
     <file>ui/userWidget.js</file>
     <file>ui/viewSelector.js</file>
+    <file>ui/welcomeDialog.js</file>
     <file>ui/windowAttentionHandler.js</file>
     <file>ui/windowMenu.js</file>
     <file>ui/windowManager.js</file>
diff --git a/js/ui/main.js b/js/ui/main.js
index bff730c5b2..9f3fb7b26c 100644
--- a/js/ui/main.js
+++ b/js/ui/main.js
@@ -29,6 +29,7 @@ const PadOsd = imports.ui.padOsd;
 const Panel = imports.ui.panel;
 const Params = imports.misc.params;
 const RunDialog = imports.ui.runDialog;
+const WelcomeDialog = imports.ui.welcomeDialog;
 const Layout = imports.ui.layout;
 const LoginManager = imports.misc.loginManager;
 const LookingGlass = imports.ui.lookingGlass;
@@ -58,6 +59,7 @@ var panel = null;
 var overview = null;
 var runDialog = null;
 var lookingGlass = null;
+var welcomeDialog = null;
 var wm = null;
 var messageTray = null;
 var screenShield = null;
@@ -120,6 +122,8 @@ function _sessionUpdated() {
             runDialog.close();
         if (lookingGlass)
             lookingGlass.close();
+        if (welcomeDialog)
+            welcomeDialog.close();
     }
 
     let remoteAccessController = global.backend.get_remote_access_controller();
@@ -642,6 +646,13 @@ function openRunDialog() {
     runDialog.open();
 }
 
+function openWelcomeDialog() {
+    if (welcomeDialog == null)
+        welcomeDialog = new WelcomeDialog.WelcomeDialog();
+
+    welcomeDialog.open();
+}
+
 /**
  * activateWindow:
  * @param {Meta.Window} window: the window to activate
diff --git a/js/ui/welcomeDialog.js b/js/ui/welcomeDialog.js
new file mode 100644
index 0000000000..e136a865eb
--- /dev/null
+++ b/js/ui/welcomeDialog.js
@@ -0,0 +1,173 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+/* exported WelcomeDialog */
+
+const { Clutter, Gio, GLib, GObject, Pango, Shell, St } = imports.gi;
+
+const ModalDialog = imports.ui.modalDialog;
+
+var DialogResponse = {
+    MAYBE_LATER: 0,
+    TAKE_TOUR: 1,
+};
+
+var WelcomeDialog = GObject.registerClass(
+class WelcomeDialog extends ModalDialog.ModalDialog {
+    _init() {
+        super._init({ styleClass: 'welcome-dialog' });
+
+        this._tourAppInfo = Gio.DesktopAppInfo.new('org.gnome.Tour.desktop');
+
+        this._buildLayout();
+    }
+
+    open() {
+        if (!this._tourAppInfo)
+            return;
+
+        super.open();
+    }
+
+    _buildLayout() {
+        const file = Gio.File.new_for_uri(
+            'resource:///org/gnome/shell/theme/gnome-shell-start.svg');
+        let icon = new Gio.FileIcon({ file });
+        let title = _('Welcome to GNOME 40');
+        let description = _('If you want to learn your way around, check out the tour.');
+        let content = new WelcomeDialogContent({ title, description, icon });
+        content._icon.icon_size = 600;
+        content._icon.height = 400;
+        content._icon.width = 600;
+        this.contentLayout.add_actor(content);
+
+        this.addButton({ label: _("Maybe Later"),
+                         action: () => {
+                             this._sendResponse(DialogResponse.MAYBE_LATER);
+                         },
+                         key: Clutter.KEY_Escape });
+        this.addButton({ label: _("Take Tour"),
+                         action: () => {
+                             this._sendResponse(DialogResponse.TAKE_TOUR);
+                         } });
+    }
+
+    _sendResponse(response) {
+        if (response == DialogResponse.TAKE_TOUR) {
+            this._tourAppInfo.launch([], global.create_app_launch_context(0, -1));
+        }
+
+        this.close();
+    }
+});
+
+function _setLabel(label, value) {
+    label.set({
+        text: value || '',
+        visible: value !== null,
+    });
+}
+
+var WelcomeDialogContent = GObject.registerClass({
+    Properties: {
+        'title': GObject.ParamSpec.string(
+            'title', 'title', 'title',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            null),
+        'description': GObject.ParamSpec.string(
+            'description', 'description', 'description',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            null),
+        'icon': GObject.ParamSpec.object(
+            'icon', 'icon', 'icon',
+            GObject.ParamFlags.READWRITE |
+            GObject.ParamFlags.CONSTRUCT,
+            Gio.Icon.$gtype),
+    },
+}, class WelcomeDialogContent extends St.BoxLayout {
+    _init(params) {
+        this._title = new St.Label({ style_class: 'message-dialog-title' });
+        this._description = new St.Label({ style_class: 'message-dialog-description' });
+        this._icon = new St.Icon({ style_class: 'welcome-dialog-icon' });
+
+        this._description.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;
+        this._description.clutter_text.line_wrap = true;
+
+        let defaultParams = {
+            style_class: 'message-dialog-content',
+            x_expand: true,
+            vertical: true,
+        };
+        super._init(Object.assign(defaultParams, params));
+
+        this.connect('notify::size', this._updateTitleStyle.bind(this));
+        this.connect('destroy', this._onDestroy.bind(this));
+
+        this.add_child(this._icon);
+        this.add_child(this._title);
+        this.add_child(this._description);
+    }
+
+    _onDestroy() {
+        if (this._updateTitleStyleLater) {
+            Meta.later_remove(this._updateTitleStyleLater);
+            delete this._updateTitleStyleLater;
+        }
+    }
+
+    get title() {
+        return this._title.text;
+    }
+
+    get description() {
+        return this._description.text;
+    }
+
+    get icon() {
+        return this._icon.icon_name;
+    }
+
+    _updateTitleStyle() {
+        if (!this._title.mapped)
+            return;
+
+        this._title.ensure_style();
+        const [, titleNatWidth] = this._title.get_preferred_width(-1);
+
+        if (titleNatWidth > this.width) {
+            if (this._updateTitleStyleLater)
+                return;
+
+            this._updateTitleStyleLater = Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
+                this._updateTitleStyleLater = 0;
+                this._title.add_style_class_name('lightweight');
+                return GLib.SOURCE_REMOVE;
+            });
+        }
+    }
+
+    set title(title) {
+        if (this._title.text === title)
+            return;
+
+        _setLabel(this._title, title);
+
+        this._title.remove_style_class_name('lightweight');
+        this._updateTitleStyle();
+
+        this.notify('title');
+    }
+
+    set description(description) {
+        if (this._description.text === description)
+            return;
+
+        _setLabel(this._description, description);
+        this.notify('description');
+    }
+
+    set icon(icon) {
+        this._icon.gicon = icon;
+    }
+});
+
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 745ea58f19..4f83b62cf7 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -67,6 +67,7 @@ js/ui/status/volume.js
 js/ui/switchMonitor.js
 js/ui/unlockDialog.js
 js/ui/viewSelector.js
+js/ui/welcomeDialog.js
 js/ui/windowAttentionHandler.js
 js/ui/windowManager.js
 js/ui/windowMenu.js


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