Clean up file widget code

4 files changed, 293 insertions, 201 deletions

diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index e2f8ecf8..278daf76 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -50,6 +50,7 @@ set(RESOURCE_LIST
     conversation_list_titlebar_csd.ui
     conversation_row.ui
     conversation_view.ui
+    file_default_widget.ui
     emojichooser.ui
     global_search.ui
     conversation_content_view/image_toolbar.ui
@@ -140,6 +141,7 @@ SOURCES
     src/ui/conversation_content_view/conversation_item_skeleton.vala
     src/ui/conversation_content_view/conversation_view.vala
     src/ui/conversation_content_view/date_separator_populator.vala
+    src/ui/conversation_content_view/file_default_widget.vala
     src/ui/conversation_content_view/file_widget.vala
     src/ui/conversation_content_view/message_widget.vala
     src/ui/conversation_content_view/subscription_notification.vala
diff --git a/main/data/file_default_widget.ui b/main/data/file_default_widget.ui
new file mode 100644
index 00000000..7019f0c2
--- /dev/null
+++ b/main/data/file_default_widget.ui
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+    <template class="DinoUiFileDefaultWidget" parent="GtkEventBox">
+        <property name="halign">start</property>
+        <property name="visible">True</property>
+        <style>
+            <class name="file-box-outer"/>
+        </style>
+        <child>
+            <object class="DinoUiSizingBin">
+                <property name="target-width">500</property>
+                <property name="max-width">500</property>
+                <property name="hexpand">True</property>
+                <property name="visible">True</property>
+                <child>
+                    <object class="GtkBox">
+                        <property name="orientation">horizontal</property>
+                        <property name="halign">fill</property>
+                        <property name="hexpand">true</property>
+                        <property name="spacing">10</property>
+                        <property name="visible">True</property>
+                        <style>
+                            <class name="file-box"/>
+                        </style>
+                        <child>
+                            <object class="GtkEventBox" id="stack_event_box">
+                                <property name="visible">True</property>
+                                <child>
+                                    <object class="GtkStack" id="image_stack">
+                                        <property name="transition-type">crossfade</property>
+                                        <property name="transition-duration">50</property>
+                                        <property name="valign">center</property>
+                                        <property name="visible">True</property>
+                                        <child>
+                                            <object class="GtkImage">
+                                                <property name="icon-name">dino-file-download-symbolic</property>
+                                                <property name="icon-size">5</property>
+                                                <property name="opacity">0.7</property>
+                                                <property name="visible">True</property>
+                                            </object>
+                                            <packing>
+                                                <property name="name">download_image</property>
+                                            </packing>
+                                        </child>
+                                        <child>
+                                            <object class="GtkImage" id="content_type_image">
+                                                <property name="icon-size">5</property>
+                                                <property name="opacity">0.7</property>
+                                                <property name="visible">True</property>
+                                            </object>
+                                            <packing>
+                                                <property name="name">content_type_image</property>
+                                            </packing>
+                                        </child>
+                                        <child>
+                                            <object class="GtkSpinner" id="spinner">
+                                                <property name="visible">True</property>
+                                            </object>
+                                            <packing>
+                                                <property name="name">spinner</property>
+                                            </packing>
+                                        </child>
+                                    </object>
+                                </child>
+                            </object>
+                        </child>
+                        <child>
+                            <object class="GtkBox">
+                                <property name="orientation">vertical</property>
+                                <property name="hexpand">True</property>
+                                <property name="visible">True</property>
+                                <child>
+                                    <object class="GtkLabel" id="name_label">
+                                        <property name="ellipsize">middle</property>
+                                        <property name="xalign">0</property>
+                                        <property name="yalign">0</property>
+                                        <property name="visible">True</property>
+                                    </object>
+                                </child>
+                                <child>
+                                    <object class="GtkLabel" id="mime_label">
+                                        <property name="xalign">0</property>
+                                        <property name="yalign">1</property>
+                                        <property name="visible">True</property>
+                                        <attributes>
+                                            <attribute name="scale" value="0.8"/>
+                                        </attributes>
+                                    </object>
+                                </child>
+                            </object>
+                        </child>
+                    </object>
+                </child>
+            </object>
+        </child>
+    </template>
+</interface>
diff --git a/main/src/ui/conversation_content_view/file_default_widget.vala b/main/src/ui/conversation_content_view/file_default_widget.vala
new file mode 100644
index 00000000..045223fe
--- /dev/null
+++ b/main/src/ui/conversation_content_view/file_default_widget.vala
@@ -0,0 +1,127 @@
+using Gee;
+using Gdk;
+using Gtk;
+
+using Dino.Entities;
+
+namespace Dino.Ui {
+
+[GtkTemplate (ui = "/im/dino/Dino/file_default_widget.ui")]
+public class FileDefaultWidget : EventBox {
+
+    [GtkChild] public Stack image_stack;
+    [GtkChild] public Label name_label;
+    [GtkChild] public Label mime_label;
+    [GtkChild] public Image content_type_image;
+    [GtkChild] public Spinner spinner;
+    [GtkChild] public EventBox stack_event_box;
+
+    private FileTransfer.State state;
+    private bool pointer_inside = false;
+
+    public FileDefaultWidget() {
+        this.enter_notify_event.connect(on_pointer_entered);
+        this.leave_notify_event.connect(on_pointer_left);
+
+        stack_event_box.enter_notify_event.connect((event) => { pointer_inside = true; return false; });
+        mime_label.enter_notify_event.connect((event) => { pointer_inside = true; return false; });
+        stack_event_box.leave_notify_event.connect((event) => { pointer_inside = true; return false; });
+        mime_label.leave_notify_event.connect((event) => { pointer_inside = true; return false; });
+    }
+
+    public void update_file_info(string? mime_type, FileTransfer.State state, int size) {
+        this.state = state;
+
+        spinner.active = false; // A hidden spinning spinner still uses CPU. Deactivate asap
+
+        content_type_image.icon_name = get_file_icon_name(mime_type);
+        string? mime_description = mime_type != null ? ContentType.get_description(mime_type) : null;
+
+        switch (state) {
+            case FileTransfer.State.COMPLETE:
+                mime_label.label = mime_description;
+                image_stack.set_visible_child_name("content_type_image");
+                break;
+            case FileTransfer.State.IN_PROGRESS:
+                mime_label.label = _("Downloading %s…").printf(get_size_string(size));
+                spinner.active = true;
+                image_stack.set_visible_child_name("spinner");
+                break;
+            case FileTransfer.State.NOT_STARTED:
+                if (mime_description != null) {
+                    mime_label.label =  _("%s offered: %s").printf(mime_description, get_size_string(size));
+                } else if (size != -1) {
+                    mime_label.label = _("File offered: %s").printf(get_size_string(size));
+                } else {
+                    mime_label.label = _("File offered");
+                }
+                image_stack.set_visible_child_name("content_type_image");
+                break;
+            case FileTransfer.State.FAILED:
+                mime_label.use_markup = true;
+                mime_label.label = "<span foreground=\"#f44336\">" + _("File transfer failed") + "</span>";
+                image_stack.set_visible_child_name("content_type_image");
+                break;
+        }
+    }
+
+    private bool on_pointer_entered(Gdk.EventCrossing event) {
+        pointer_inside = true;
+        Timeout.add(20, () => {
+            if (pointer_inside) {
+                event.get_window().set_cursor(new Cursor.for_display(Gdk.Display.get_default(), CursorType.HAND2));
+                content_type_image.opacity = 0.7;
+                if (state == FileTransfer.State.NOT_STARTED) {
+                    image_stack.set_visible_child_name("download_image");
+                }
+            }
+            return false;
+        });
+        return false;
+    }
+
+    private bool on_pointer_left(Gdk.EventCrossing event) {
+        pointer_inside = false;
+        Timeout.add(20, () => {
+            if (!pointer_inside) {
+                event.get_window().set_cursor(new Cursor.for_display(Gdk.Display.get_default(), CursorType.XTERM));
+                content_type_image.opacity = 0.5;
+                if (state == FileTransfer.State.NOT_STARTED) {
+                    image_stack.set_visible_child_name("content_type_image");
+                }
+            }
+            return false;
+        });
+        return false;
+    }
+
+    private static string get_file_icon_name(string? mime_type) {
+        if (mime_type == null) return "dino-file-symbolic";
+
+        string generic_icon_name = ContentType.get_generic_icon_name(mime_type) ?? "";
+        switch (generic_icon_name) {
+            case "audio-x-generic": return "dino-file-music-symbolic";
+            case "image-x-generic": return "dino-file-image-symbolic";
+            case "text-x-generic": return "dino-file-document-symbolic";
+            case "text-x-generic-template": return "dino-file-document-symbolic";
+            case "video-x-generic": return "dino-file-video-symbolic";
+            case "x-office-document": return "dino-file-document-symbolic";
+            case "x-office-spreadsheet": return "dino-file-table-symbolic";
+            default: return "dino-file-symbolic";
+        }
+    }
+
+    private static string get_size_string(int size) {
+        if (size < 1024) {
+            return @"$(size) B";
+        } else if (size < 1000 * 1000) {
+            return @"$(size / 1000) kB";
+        } else if (size < 1000 * 1000 * 1000) {
+            return @"$(size / 1000  / 1000) MB";
+        } else {
+            return @"$(size  / 1000  / 1000  / 1000) GB";
+        }
+    }
+}
+
+}
diff --git a/main/src/ui/conversation_content_view/file_widget.vala b/main/src/ui/conversation_content_view/file_widget.vala
index ee14af7a..85ac0d56 100644
--- a/main/src/ui/conversation_content_view/file_widget.vala
+++ b/main/src/ui/conversation_content_view/file_widget.vala
@@ -39,18 +39,9 @@ public class FileWidget : Box {
     private FileTransfer file_transfer;
     private State state;
 
-    // default box
-    private Box main_box;
-    private Image content_type_image;
-    private Image download_image;
-    private Spinner spinner;
-    private Label mime_label;
-    private Stack image_stack;
-
+    private FileDefaultWidgetController default_widget_controller;
     private Widget content;
 
-    private bool pointer_inside = false;
-
     public FileWidget(StreamInteractor stream_interactor, FileTransfer file_transfer) {
         this.stream_interactor = stream_interactor;
         this.file_transfer = file_transfer;
@@ -61,32 +52,54 @@ public class FileWidget : Box {
                 Idle.add(() => { parent.queue_resize(); return false; });
             }
         });
+
+        file_transfer.notify["state"].connect(update_widget_type);
+        file_transfer.notify["mime-type"].connect(update_widget_type);
     }
 
     private async void load_widget() {
         if (show_image()) {
-            content = yield get_image_widget(file_transfer);
+            content = yield get_image_widget(file_transfer.get_file(), file_transfer.file_name);
             if (content != null) {
                 this.state = State.IMAGE;
                 this.add(content);
                 return;
             }
         }
-        content = get_default_widget(file_transfer);
+        FileDefaultWidget default_file_widget = new FileDefaultWidget() { visible=true };
+        default_widget_controller = new FileDefaultWidgetController(default_file_widget, file_transfer, stream_interactor);
+        content = default_file_widget;
         this.state = State.DEFAULT;
         this.add(content);
     }
 
-    private async Widget? get_image_widget(FileTransfer file_transfer) {
+    private async void update_widget_type() {
+        if (file_transfer.state == FileTransfer.State.COMPLETE && show_image() && state != State.IMAGE) {
+            this.remove(content);
+            this.add(yield get_image_widget(file_transfer.get_file(), file_transfer.file_name));
+            state = State.IMAGE;
+            return;
+        }
+        if (file_transfer.state == FileTransfer.State.FAILED && state == State.IMAGE) {
+            this.remove(content);
+            FileDefaultWidget default_file_widget = new FileDefaultWidget() { visible=true };
+            default_widget_controller = new FileDefaultWidgetController(default_file_widget, file_transfer, stream_interactor);
+            content = default_file_widget;
+            this.state = State.DEFAULT;
+            this.add(content);
+        }
+    }
+
+    public static async Widget? get_image_widget(File file, string file_name, int MAX_WIDTH=600, int MAX_HEIGHT=300) {
         // Load and prepare image in tread
         Thread<Image?> thread = new Thread<Image?> (null, () => {
             ScalingImage image = new ScalingImage() { halign=Align.START, visible = true, max_width = MAX_WIDTH, max_height = MAX_HEIGHT };
 
             Gdk.Pixbuf pixbuf;
             try {
-                pixbuf = new Gdk.Pixbuf.from_file(file_transfer.get_file().get_path());
+                pixbuf = new Gdk.Pixbuf.from_file(file.get_path());
             } catch (Error error) {
-                warning("Can't load picture %s - %s", file_transfer.get_file().get_path(), error.message);
+                warning("Can't load picture %s - %s", file.get_path(), error.message);
                 Idle.add(get_image_widget.callback);
                 return null;
             }
@@ -112,8 +125,8 @@ public class FileWidget : Box {
         Label url_label = builder.get_object("url_label") as Label;
         Util.force_color(url_label, "#eee");
 
-        if (file_transfer.file_name != null && file_transfer.file_name != "") {
-            string caption = file_transfer.file_name;
+        if (file_name != null && file_name != "") {
+            string caption = file_name;
             url_label.label = caption;
         } else {
             url_label.visible = false;
@@ -125,9 +138,9 @@ public class FileWidget : Box {
         Util.force_css(open_button, "*:hover { background-color: rgba(255,255,255,0.3); border-color: transparent; }");
         open_button.clicked.connect(() => {
             try{
-                AppInfo.launch_default_for_uri(file_transfer.get_file().get_uri(), null);
+                AppInfo.launch_default_for_uri(file.get_uri(), null);
             } catch (Error err) {
-                info("Could not to open file://%s: %s", file_transfer.get_file().get_path(), err.message);
+                info("Could not to open file://%s: %s", file.get_path(), err.message);
             }
         });
 
@@ -147,208 +160,61 @@ public class FileWidget : Box {
         return event_box;
     }
 
-    private static Gdk.Pixbuf crop_corners(Gdk.Pixbuf pixbuf, double radius = 3) {
-        Cairo.Context ctx = new Cairo.Context(new Cairo.ImageSurface(Cairo.Format.ARGB32, pixbuf.width, pixbuf.height));
-        Gdk.cairo_set_source_pixbuf(ctx, pixbuf, 0, 0);
-        double degrees = Math.PI / 180.0;
-        ctx.new_sub_path();
-        ctx.arc(pixbuf.width - radius, radius, radius, -90 * degrees, 0 * degrees);
-        ctx.arc(pixbuf.width - radius, pixbuf.height - radius, radius, 0 * degrees, 90 * degrees);
-        ctx.arc(radius, pixbuf.height - radius, radius, 90 * degrees, 180 * degrees);
-        ctx.arc(radius, radius, radius, 180 * degrees, 270 * degrees);
-        ctx.close_path();
-        ctx.clip();
-        ctx.paint();
-        return Gdk.pixbuf_get_from_surface(ctx.get_target(), 0, 0, pixbuf.width, pixbuf.height);
-    }
-
-    private Widget get_default_widget(FileTransfer file_transfer) {
-        string icon_name = get_file_icon_name(file_transfer.mime_type);
-
-        main_box = new Box(Orientation.HORIZONTAL, 10) { halign=Align.FILL, hexpand=true, visible=true };
-        content_type_image = new Image.from_icon_name(icon_name, IconSize.DND) { opacity=0.5, visible=true };
-        download_image = new Image.from_icon_name("dino-file-download-symbolic", IconSize.DND) { opacity=0.7, visible=true };
-        spinner = new Spinner() { visible=true };
-
-        EventBox stack_event_box = new EventBox() { visible=true };
-        image_stack = new Stack() { transition_type = StackTransitionType.CROSSFADE, transition_duration=50, valign=Align.CENTER, visible=true };
-        image_stack.add_named(download_image, "download_image");
-        image_stack.add_named(spinner, "spinner");
-        image_stack.add_named(content_type_image, "content_type_image");
-        stack_event_box.add(image_stack);
-
-        main_box.add(stack_event_box);
-
-        Box right_box = new Box(Orientation.VERTICAL, 0) { hexpand=true, visible=true };
-        Label name_label = new Label(file_transfer.file_name) { ellipsize=EllipsizeMode.MIDDLE, xalign=0, yalign=0, visible=true};
-        right_box.add(name_label);
+    private bool show_image() {
+        if (file_transfer.mime_type == null || file_transfer.state != FileTransfer.State.COMPLETE) return false;
 
-        EventBox mime_label_event_box = new EventBox() { visible=true };
-        mime_label = new Label("") { use_markup=true, xalign=0, yalign=1, visible=true};
+        foreach (PixbufFormat pixbuf_format in Pixbuf.get_formats()) {
+            foreach (string mime_type in pixbuf_format.get_mime_types()) {
+                if (mime_type == file_transfer.mime_type) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}
 
-        mime_label_event_box.add(mime_label);
-        mime_label.get_style_context().add_class("dim-label");
+public class FileDefaultWidgetController : Object {
 
-        right_box.add(mime_label_event_box);
-        main_box.add(right_box);
+    private FileDefaultWidget widget;
+    private FileTransfer file_transfer;
+    private StreamInteractor stream_interactor;
 
-        SizingBin bin = new SizingBin() { visible=true, hexpand=true, max_width=500, target_width=500 };
-        bin.add(main_box);
+    public FileDefaultWidgetController(FileDefaultWidget widget, FileTransfer file_transfer, StreamInteractor stream_interactor) {
+        this.widget = widget;
+        this.file_transfer = file_transfer;
+        this.stream_interactor = stream_interactor;
 
-        EventBox event_box = new EventBox() { margin_top=5, halign=Align.START, visible=true };
-        event_box.get_style_context().add_class("file-box-outer");
-        event_box.add(bin);
-
-        main_box.get_style_context().add_class("file-box");
-
-        event_box.enter_notify_event.connect((event) => {
-            pointer_inside = true;
-            Timeout.add(20, () => {
-                if (pointer_inside) {
-                    event.get_window().set_cursor(new Cursor.for_display(Gdk.Display.get_default(), CursorType.HAND2));
-                    content_type_image.opacity = 0.7;
-                    if (file_transfer.state == FileTransfer.State.NOT_STARTED) {
-                        image_stack.set_visible_child_name("download_image");
-                    }
-                }
-                return false;
-            });
-            return false;
-        });
-        stack_event_box.enter_notify_event.connect((event) => { pointer_inside = true; return false; });
-        mime_label_event_box.enter_notify_event.connect((event) => { pointer_inside = true; return false; });
-        mime_label.enter_notify_event.connect((event) => { pointer_inside = true; return false; });
-        event_box.leave_notify_event.connect((event) => {
-            pointer_inside = false;
-            Timeout.add(20, () => {
-                if (!pointer_inside) {
-                    event.get_window().set_cursor(new Cursor.for_display(Gdk.Display.get_default(), CursorType.XTERM));
-                    content_type_image.opacity = 0.5;
-                    if (file_transfer.state == FileTransfer.State.NOT_STARTED) {
-                        image_stack.set_visible_child_name("content_type_image");
-                    }
-                }
-                return false;
-            });
-            return false;
-        });
-        stack_event_box.leave_notify_event.connect((event) => { pointer_inside = true; return false; });
-        mime_label_event_box.leave_notify_event.connect((event) => { pointer_inside = true; return false; });
-        mime_label.leave_notify_event.connect((event) => { pointer_inside = true; return false; });
-        event_box.button_release_event.connect((event_button) => {
-            switch (file_transfer.state) {
-                case FileTransfer.State.COMPLETE:
-                    if (event_button.button == 1) {
-                        try{
-                            AppInfo.launch_default_for_uri(file_transfer.get_file().get_uri(), null);
-                        } catch (Error err) {
-                            print("Tried to open " + file_transfer.get_file().get_path());
-                        }
-                    }
-                    break;
-                case FileTransfer.State.NOT_STARTED:
-                    stream_interactor.get_module(FileManager.IDENTITY).download_file.begin(file_transfer);
-                    break;
-            }
-            return false;
-        });
+        widget.name_label.label = file_transfer.file_name;
 
-        main_box.events = EventMask.POINTER_MOTION_MASK;
-        content_type_image.events = EventMask.POINTER_MOTION_MASK;
-        download_image.events = EventMask.POINTER_MOTION_MASK;
-        spinner.events = EventMask.POINTER_MOTION_MASK;
-        image_stack.events = EventMask.POINTER_MOTION_MASK;
-        right_box.events = EventMask.POINTER_MOTION_MASK;
-        name_label.events = EventMask.POINTER_MOTION_MASK;
-        mime_label.events = EventMask.POINTER_MOTION_MASK;
-        event_box.events = EventMask.POINTER_MOTION_MASK;
-        mime_label.events = EventMask.POINTER_MOTION_MASK;
-        mime_label_event_box.events = EventMask.POINTER_MOTION_MASK;
+        widget.button_release_event.connect(on_clicked);
 
         file_transfer.notify["path"].connect(update_file_info);
         file_transfer.notify["state"].connect(update_file_info);
         file_transfer.notify["mime-type"].connect(update_file_info);
-        update_file_info.begin();
 
-        return event_box;
+        update_file_info();
     }
 
-    private async void update_file_info() {
-        if (file_transfer.state == FileTransfer.State.COMPLETE && show_image() && state != State.IMAGE) {
-            this.remove(content);
-            this.add(yield get_image_widget(file_transfer));
-            state = State.IMAGE;
-        }
-
-        spinner.active = false; // A hidden spinning spinner still uses CPU. Deactivate asap
-
-        string? mime_description = file_transfer.mime_type != null ? ContentType.get_description(file_transfer.mime_type) : null;
+    private void update_file_info() {
+        widget.update_file_info(file_transfer.mime_type, file_transfer.state, file_transfer.size);
+    }
 
+    private bool on_clicked(EventButton event_button) {
         switch (file_transfer.state) {
             case FileTransfer.State.COMPLETE:
-                mime_label.label = "<span size='small'>" + mime_description + "</span>";
-                image_stack.set_visible_child_name("content_type_image");
-                break;
-            case FileTransfer.State.IN_PROGRESS:
-                mime_label.label = "<span size='small'>" + _("Downloading %s…").printf(get_size_string(file_transfer.size)) + "</span>";
-                spinner.active = true;
-                image_stack.set_visible_child_name("spinner");
-                break;
-            case FileTransfer.State.NOT_STARTED:
-                if (mime_description != null) {
-                    mime_label.label = "<span size='small'>" + _("%s offered: %s").printf(mime_description, get_size_string(file_transfer.size)) + "</span>";
-                } else if (file_transfer.size != -1) {
-                    mime_label.label = "<span size='small'>" + _("File offered: %s").printf(get_size_string(file_transfer.size)) + "</span>";
-                } else {
-                    mime_label.label = "<span size='small'>" + _("File offered") + "</span>";
+                if (event_button.button == 1) {
+                    try{
+                        AppInfo.launch_default_for_uri(file_transfer.get_file().get_uri(), null);
+                    } catch (Error err) {
+                        print("Tried to open " + file_transfer.get_file().get_path());
+                    }
                 }
-                image_stack.set_visible_child_name("content_type_image");
                 break;
-            case FileTransfer.State.FAILED:
-                mime_label.label = "<span size='small' foreground=\"#f44336\">" + _("File transfer failed") + "</span>";
-                image_stack.set_visible_child_name("content_type_image");
+            case FileTransfer.State.NOT_STARTED:
+                stream_interactor.get_module(FileManager.IDENTITY).download_file.begin(file_transfer);
                 break;
         }
-    }
-
-    private static string get_file_icon_name(string? mime_type) {
-        if (mime_type == null) return "dino-file-symbolic";
-
-        string generic_icon_name = ContentType.get_generic_icon_name(mime_type) ?? "";
-        switch (generic_icon_name) {
-            case "audio-x-generic": return "dino-file-music-symbolic";
-            case "image-x-generic": return "dino-file-image-symbolic";
-            case "text-x-generic": return "dino-file-document-symbolic";
-            case "text-x-generic-template": return "dino-file-document-symbolic";
-            case "video-x-generic": return "dino-file-video-symbolic";
-            case "x-office-document": return "dino-file-document-symbolic";
-            case "x-office-spreadsheet": return "dino-file-table-symbolic";
-            default: return "dino-file-symbolic";
-        }
-    }
-
-    private static string get_size_string(int size) {
-        if (size < 1024) {
-            return @"$(size) B";
-        } else if (size < 1000 * 1000) {
-            return @"$(size / 1000) kB";
-        } else if (size < 1000 * 1000 * 1000) {
-            return @"$(size / 1000  / 1000) MB";
-        } else {
-            return @"$(size  / 1000  / 1000  / 1000) GB";
-        }
-    }
-
-    private bool show_image() {
-        if (file_transfer.mime_type == null || file_transfer.state != FileTransfer.State.COMPLETE) return false;
-
-        foreach (PixbufFormat pixbuf_format in Pixbuf.get_formats()) {
-            foreach (string mime_type in pixbuf_format.get_mime_types()) {
-                if (mime_type == file_transfer.mime_type) {
-                    return true;
-                }
-            }
-        }
         return false;
     }
 }