Imported Upstream version 0.18.1upstream/0.18.1

1 files changed, 308 insertions, 0 deletions

diff --git a/src/DesktopIntegration.vala b/src/DesktopIntegration.vala
new file mode 100644
index 0000000..ebdc45e
--- /dev/null
+++ b/src/DesktopIntegration.vala
@@ -0,0 +1,308 @@
+/* Copyright 2009-2014 Yorba Foundation
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+namespace DesktopIntegration {
+
+private const string SENDTO_EXEC = "nautilus-sendto";
+private const string DESKTOP_SLIDESHOW_XML_FILENAME = "wallpaper.xml";
+
+private int init_count = 0;
+private bool send_to_installed = false;
+private ExporterUI send_to_exporter = null;
+private ExporterUI desktop_slideshow_exporter = null;
+private double desktop_slideshow_transition = 0.0;
+private double desktop_slideshow_duration = 0.0;
+
+public void init() {
+    if (init_count++ != 0)
+        return;
+    
+    send_to_installed = Environment.find_program_in_path(SENDTO_EXEC) != null;
+}
+
+public void terminate() {
+    if (--init_count == 0)
+        return;
+}
+
+public AppInfo? get_default_app_for_mime_types(string[] mime_types, 
+    Gee.ArrayList<string> preferred_apps) {
+    SortedList<AppInfo> external_apps = get_apps_for_mime_types(mime_types);
+    
+    foreach (string preferred_app in preferred_apps) {
+        foreach (AppInfo external_app in external_apps) {
+            if (external_app.get_name().contains(preferred_app))
+                return external_app;
+        }
+    }
+    
+    return null;
+}
+
+// compare the app names, case insensitive
+public static int64 app_info_comparator(void *a, void *b) {
+    return ((AppInfo) a).get_name().down().collate(((AppInfo) b).get_name().down());
+}
+
+public SortedList<AppInfo> get_apps_for_mime_types(string[] mime_types) {
+    SortedList<AppInfo> external_apps = new SortedList<AppInfo>(app_info_comparator);
+    
+    if (mime_types.length == 0)
+        return external_apps;
+    
+    // 3 loops because SortedList.contains() wasn't paying nicely with AppInfo,
+    // probably because it has a special equality function
+    foreach (string mime_type in mime_types) {
+        string content_type = ContentType.from_mime_type(mime_type);
+        if (content_type == null)
+            break;
+        
+        foreach (AppInfo external_app in 
+            AppInfo.get_all_for_type(content_type)) {
+            bool already_contains = false;
+            
+            foreach (AppInfo app in external_apps) {
+                if (app.get_name() == external_app.get_name()) {
+                    already_contains = true;
+                    break;
+                }
+            }
+            
+            // dont add Shotwell to app list
+            if (!already_contains && !external_app.get_name().contains(Resources.APP_TITLE))
+                external_apps.add(external_app);
+        }
+    }
+    
+    return external_apps;
+}
+
+public string? get_app_open_command(AppInfo app_info) {
+    string? str = app_info.get_commandline();
+
+    return str != null ? str : app_info.get_executable();
+}
+
+public bool is_send_to_installed() {
+    return send_to_installed;
+}
+
+public void files_send_to(File[] files) {
+    if (files.length == 0)
+        return;
+    
+    string[] argv = new string[files.length + 1];
+    argv[0] = SENDTO_EXEC;
+    
+    for (int ctr = 0; ctr < files.length; ctr++)
+        argv[ctr + 1] = files[ctr].get_path();
+    
+    try {
+        AppWindow.get_instance().set_busy_cursor();
+        
+        Pid child_pid;
+        Process.spawn_async(
+            "/",
+            argv,
+            null, // environment
+            SpawnFlags.SEARCH_PATH,
+            null, // child setup
+            out child_pid);
+        
+        AppWindow.get_instance().set_normal_cursor();
+    } catch (Error err) {
+        AppWindow.get_instance().set_normal_cursor();
+        AppWindow.error_message(_("Unable to launch Nautilus Send-To: %s").printf(err.message));
+    }
+}
+
+public void send_to(Gee.Collection<MediaSource> media) {
+    if (media.size == 0 || send_to_exporter != null)
+        return;
+    
+    ExportDialog dialog = new ExportDialog(_("Send To"));
+
+    // determine the mix of media in the export collection -- if it contains only
+    // videos then we can use the Video.export_many( ) fast path and not have to
+    // worry about ExportFormatParameters or the Export... dialog
+    if (MediaSourceCollection.has_video(media) && !MediaSourceCollection.has_photo(media)) {
+        send_to_exporter = Video.export_many((Gee.Collection<Video>) media,
+            on_send_to_export_completed, true);
+        return;
+    }
+    
+    int scale;
+    ScaleConstraint constraint;
+    ExportFormatParameters export_params = ExportFormatParameters.current();
+    if (!dialog.execute(out scale, out constraint, ref export_params))
+        return;
+    
+    send_to_exporter = new ExporterUI(new Exporter.for_temp_file(media,
+        Scaling.for_constraint(constraint, scale, false), export_params));
+    send_to_exporter.export(on_send_to_export_completed);
+}
+
+private void on_send_to_export_completed(Exporter exporter, bool is_cancelled) {
+    if (!is_cancelled)
+        files_send_to(exporter.get_exported_files());
+    
+    send_to_exporter = null;
+}
+
+public void set_background(Photo photo) {
+    // attempt to set the wallpaper to the photo's native format, but if not writeable, go to the
+    // system default
+    PhotoFileFormat file_format = photo.get_best_export_file_format();
+    
+    File save_as = AppDirs.get_data_subdir("wallpaper").get_child(
+        file_format.get_default_basename("wallpaper"));
+    
+    if (Config.Facade.get_instance().get_desktop_background() == save_as.get_path()) {
+        save_as = AppDirs.get_data_subdir("wallpaper").get_child(
+            file_format.get_default_basename("wallpaper_alt"));
+    }
+    
+    try {
+        photo.export(save_as, Scaling.for_original(), Jpeg.Quality.HIGH, file_format);
+    } catch (Error err) {
+        AppWindow.error_message(_("Unable to export background to %s: %s").printf(save_as.get_path(), 
+            err.message));
+        
+        return;
+    }
+    
+    Config.Facade.get_instance().set_desktop_background(save_as.get_path());
+    
+    GLib.FileUtils.chmod(save_as.get_parse_name(), 0644);
+}
+
+// Helper class for set_background_slideshow()
+// Used to build xml file that describes background
+// slideshow for Gnome
+private class BackgroundSlideshowXMLBuilder {
+    private File destination;
+    private double duration;
+    private double transition;
+    private File tmp_file;
+    private DataOutputStream? outs = null;
+    private File? first_file = null;
+    private File? last_file = null;
+    
+    public BackgroundSlideshowXMLBuilder(File destination, double duration, double transition) {
+        this.destination = destination;
+        this.duration = duration;
+        this.transition = transition;
+        
+        tmp_file = destination.get_parent().get_child(destination.get_basename() + ".tmp");
+    }
+    
+    public void open() throws Error {
+        outs = new DataOutputStream(tmp_file.replace(null, false, FileCreateFlags.NONE, null));
+        outs.put_string("<background>\n");
+    }
+    
+    private void write_transition(File from, File to) throws Error {
+        outs.put_string("  <transition>\n");
+        outs.put_string("    <duration>%2.2f</duration>\n".printf(transition));
+        outs.put_string("    <from>%s</from>\n".printf(from.get_path()));
+        outs.put_string("    <to>%s</to>\n".printf(to.get_path()));
+        outs.put_string("  </transition>\n");
+    }
+    
+    private void write_static(File file) throws Error {
+        outs.put_string("  <static>\n");
+        outs.put_string("    <duration>%2.2f</duration>\n".printf(duration));
+        outs.put_string("    <file>%s</file>\n".printf(file.get_path()));
+        outs.put_string("  </static>\n");
+    }
+    
+    public void add_photo(File file) throws Error {
+        assert(outs != null);
+        
+        if (first_file == null)
+            first_file = file;
+        
+        if (last_file != null)
+            write_transition(last_file, file);
+        
+        write_static(file);
+        
+        last_file = file;
+    }
+    
+    public File? close() throws Error {
+        if (outs == null)
+            return null;
+        
+        // transition back to first file
+        if (first_file != null && last_file != null)
+            write_transition(last_file, first_file);
+        
+        outs.put_string("</background>\n");
+        
+        outs.close();
+        outs = null;
+        
+        // move to destination name
+        tmp_file.move(destination, FileCopyFlags.OVERWRITE);
+        GLib.FileUtils.chmod(destination.get_parse_name(), 0644);
+        
+        return destination;
+    }
+}
+
+public void set_background_slideshow(Gee.Collection<Photo> photos, double duration, double transition) {
+    if (desktop_slideshow_exporter != null)
+        return;
+    
+    File wallpaper_dir = AppDirs.get_data_subdir("wallpaper");
+    
+    Gee.Set<string> exceptions = new Gee.HashSet<string>();
+    exceptions.add(DESKTOP_SLIDESHOW_XML_FILENAME);
+    try {
+        delete_all_files(wallpaper_dir, exceptions);
+    } catch (Error err) {
+        warning("Error attempting to clear wallpaper directory: %s", err.message);
+    }
+    
+    desktop_slideshow_duration = duration;
+    desktop_slideshow_transition = transition;
+    
+    Exporter exporter = new Exporter(photos, wallpaper_dir,
+        Scaling.to_fill_screen(AppWindow.get_instance()), ExportFormatParameters.current(),
+        true);
+    desktop_slideshow_exporter = new ExporterUI(exporter);
+    desktop_slideshow_exporter.export(on_desktop_slideshow_exported);
+}
+
+private void on_desktop_slideshow_exported(Exporter exporter, bool is_cancelled) {
+    desktop_slideshow_exporter = null;
+    
+    if (is_cancelled)
+        return;
+    
+    File? xml_file = null;
+    BackgroundSlideshowXMLBuilder xml_builder = new BackgroundSlideshowXMLBuilder(
+        AppDirs.get_data_subdir("wallpaper").get_child(DESKTOP_SLIDESHOW_XML_FILENAME),
+        desktop_slideshow_duration, desktop_slideshow_transition);
+    try {
+        xml_builder.open();
+        
+        foreach (File file in exporter.get_exported_files())
+            xml_builder.add_photo(file);
+        
+        xml_file = xml_builder.close();
+    } catch (Error err) {
+        AppWindow.error_message(_("Unable to prepare desktop slideshow: %s").printf(
+            err.message));
+        
+        return;
+    }
+    
+    Config.Facade.get_instance().set_desktop_background(xml_file.get_path());
+}
+
+}