Add file upload preview

fixes #756

1 files changed, 88 insertions, 0 deletions

diff --git a/main/src/ui/file_send_overlay.vala b/main/src/ui/file_send_overlay.vala
new file mode 100644
index 00000000..c19a5aef
--- /dev/null
+++ b/main/src/ui/file_send_overlay.vala
@@ -0,0 +1,88 @@
+using Gee;
+using Gdk;
+using Gtk;
+
+using Dino.Entities;
+
+namespace Dino.Ui {
+
+[GtkTemplate (ui = "/im/dino/Dino/file_send_overlay.ui")]
+public class FileSendOverlay : Gtk.EventBox {
+
+    public signal void close();
+    public signal void send_file();
+
+    [GtkChild] public Button close_button;
+    [GtkChild] public Button send_button;
+    [GtkChild] public SizingBin file_widget_insert;
+    [GtkChild] public Label info_label;
+
+    private bool can_send = true;
+
+    public FileSendOverlay(File file, FileInfo file_info) {
+        close_button.clicked.connect(() => this.destroy());
+        send_button.clicked.connect(() => {
+            send_file();
+            this.destroy();
+        });
+
+        load_file_widget.begin(file, file_info);
+
+        this.realize.connect(() => {
+            if (can_send) {
+                send_button.grab_focus();
+            } else {
+                close_button.grab_focus();
+            }
+        });
+
+        this.key_release_event.connect((event) => {
+            if (event.keyval == Gdk.Key.Escape) {
+                this.destroy();
+            }
+            return false;
+        });
+    }
+
+    public void set_file_too_large() {
+        info_label.label= "The file exceeds the server's maximum upload size.";
+        Util.force_error_color(info_label);
+        send_button.sensitive = false;
+        can_send = false;
+    }
+
+    private async void load_file_widget(File file, FileInfo file_info) {
+        string file_name = file_info.get_display_name();
+        string mime_type = file_info.get_content_type();
+
+        bool is_image = false;
+
+        foreach (PixbufFormat pixbuf_format in Pixbuf.get_formats()) {
+            foreach (string supported_mime_type in pixbuf_format.get_mime_types()) {
+                if (supported_mime_type == mime_type) {
+                    is_image = true;
+                }
+            }
+        }
+
+        Widget? widget = null;
+        if (is_image) {
+            FileImageWidget image_widget = new FileImageWidget() { visible=true };
+            try {
+                yield image_widget.load_from_file(file, file_name);
+                widget = image_widget;
+            } catch (Error e) { }
+        }
+
+        if (widget == null) {
+            FileDefaultWidget default_widget = new FileDefaultWidget() { visible=true };
+            default_widget.name_label.label = file_name;
+            default_widget.update_file_info(mime_type, FileTransfer.State.COMPLETE, (long)file_info.get_size());
+            widget = default_widget;
+        }
+
+        file_widget_insert.add(widget);
+    }
+}
+
+}