/*- * Copyright (c) 2015 Erasmo Marín * Copyright (c) 2017-2017 Artem Anufrij * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see . * * The Noise authors hereby grant permission for non-GPL compatible * GStreamer plugins to be used and distributed together with GStreamer * and Noise. This permission is above and beyond the permissions granted * by the GPL license by which Noise is covered. If you modify this code * you may extend this exception to your version of the code, but you are not * obligated to do so. If you do not wish to do so, delete this exception * statement from your version. * * Authored by: Artem Anufrij */ namespace Webpin { public class WebApp : Gtk.Stack { public WebKit.WebView app_view; public WebKit.WebView external_view; public string ui_color = "none"; private string app_url; private GLib.DesktopAppInfo info; private DesktopFile file; private WebKit.CookieManager cookie_manager; private Gtk.Box container; //the spinner container public signal void external_request (); public signal void theme_color_changed(string color); public WebApp (string webapp_name, string app_url) { this.app_url = app_url; set_transition_duration (1000); //configure cookies settings cookie_manager = WebKit.WebContext.get_default ().get_cookie_manager (); cookie_manager.set_accept_policy (WebKit.CookieAcceptPolicy.ALWAYS); string cookie_db = Environment.get_user_cache_dir () + "/webby/cookies/"; var dir = GLib.File.new_for_path (cookie_db); if (!dir.query_exists (null)) { try { dir.make_directory_with_parents (null); GLib.debug ("Directory '%s' created", dir.get_path ()); } catch (Error e) { GLib.error ("Could not create caching directory."); } } cookie_manager.set_persistent_storage (cookie_db + "cookies.db", WebKit.CookiePersistentStorage.SQLITE); //load app viewer app_view = new WebKit.WebView.with_context (WebKit.WebContext.get_default ()); app_view.load_uri (app_url); //create external viewer this.external_view = new WebKit.WebView (); //loading view var spinner = new Gtk.Spinner(); spinner.active = true; spinner.halign = Gtk.Align.CENTER; spinner.valign = Gtk.Align.CENTER; spinner.set_size_request (24, 24); container = new Gtk.Box(Gtk.Orientation.VERTICAL, 0); container.halign = Gtk.Align.FILL; container.valign = Gtk.Align.FILL; container.pack_start(spinner, true, true, 0); //overlay trick to make snapshot work even with the spinner var overlay = new Gtk.Overlay (); overlay.add(app_view); overlay.add_overlay(container); add_titled(overlay, "app", "app"); add_titled(external_view, "external", "external"); set_visible_child_name ("app"); app_view.create.connect ( () => { print("external request"); external_request (); return external_view; }); external_view.create.connect ( () => { print("external request"); set_visible_child_name ("external"); return external_view; }); info = DesktopFile.get_app_by_url(app_url); file = new DesktopFile.from_desktopappinfo(info); //load theme color saved in desktop file if (info != null && info.has_key("WebpinThemeColor")) { var color = info.get_string("WebpinThemeColor"); print("COLOR: " + color+"\n"); if(color != "none") { ui_color = color; } } Gdk.RGBA background = {}; if (!background.parse (ui_color)){ background = {1,1,1,1}; } container.override_background_color (Gtk.StateFlags.NORMAL, background); //update theme color if changed app_view.load_changed.connect ( (load_event) => { if (load_event == WebKit.LoadEvent.FINISHED) { print("determine color"); determine_theme_color.begin(); } else { container.set_visible(true); } }); } public DesktopFile get_desktop_file () { return this.file; } /**Taken from WebView.vala in lp:midori * Check for the theme-color meta tag in the page and if that one can't be * found grabs the color from the current page and uses the first 3 rows * of pixels to get a good representative color of the page */ public async void determine_theme_color () { //FIXME: This is useless without JSCore /*string script = "var t = document.getElementsByTagName('meta').filter(function(e){return e.name == 'theme-color';)[0]; t ? t.value : null;"; app_view.run_javascript.begin (script, null, (obj, res)=> { });*/ var snap = (Cairo.ImageSurface) yield app_view.get_snapshot (WebKit.SnapshotRegion.VISIBLE, WebKit.SnapshotOptions.NONE, null); // data ist in BGRA apparently (according to testing). Docs said ARGB, but that // appears not to be the case unowned uint8[] data = snap.get_data (); uint8 r = data[2]; uint8 g = data[1]; uint8 b = data[0]; for (var i = 4; i < snap.get_width () * 3 * 4; i += 4) { r = (r + data[i + 2]) / 2; g = (g + data[i + 1]) / 2; b = (b + data[i + 0]) / 2; } var color = "#%02x%02x%02x".printf (r, g, b); if (color != ui_color) { ui_color = color; Gdk.RGBA background = {}; background.parse (ui_color); container.override_background_color (Gtk.StateFlags.NORMAL, background); theme_color_changed(ui_color); if (file != null) file.edit_propertie ("WebpinThemeColor", ui_color); } container.set_visible(false); } } }