e426517b30
Rename `Configuration` => `Application.Configuration` and `geary-config.vala to `application-config.vala`. Update call sites and test cases.
104 lines
3.2 KiB
Vala
104 lines
3.2 KiB
Vala
/* Copyright 2016 Software Freedom Conservancy Inc.
|
|
*
|
|
* This software is licensed under the GNU Lesser General Public License
|
|
* (version 2.1 or later). See the COPYING file in this distribution.
|
|
*/
|
|
|
|
/**
|
|
* A FileChooser-like object for choosing attachments for a message.
|
|
*/
|
|
public class AttachmentDialog : Object {
|
|
|
|
private const int PREVIEW_SIZE = 180;
|
|
private const int PREVIEW_PADDING = 3;
|
|
|
|
private Application.Configuration config;
|
|
|
|
private Gtk.FileChooserNative? chooser = null;
|
|
|
|
private Gtk.Image preview_image = new Gtk.Image();
|
|
|
|
public delegate bool Attacher(File attachment_file, bool alert_errors = true);
|
|
|
|
public AttachmentDialog(Gtk.Window? parent, Application.Configuration config) {
|
|
this.config = config;
|
|
this.chooser = new Gtk.FileChooserNative(_("Choose a file"), parent, Gtk.FileChooserAction.OPEN, _("_Attach"), Stock._CANCEL);
|
|
|
|
this.chooser.set_local_only(false);
|
|
this.chooser.set_select_multiple(true);
|
|
|
|
// preview widget is not supported on Win32 (this will fallback to gtk file chooser)
|
|
// and possibly by some org.freedesktop.portal.FileChooser (preview will be ignored).
|
|
this.chooser.set_preview_widget(this.preview_image);
|
|
this.chooser.use_preview_label = false;
|
|
|
|
this.chooser.update_preview.connect(on_update_preview);
|
|
}
|
|
|
|
public void add_filter(owned Gtk.FileFilter filter) {
|
|
this.chooser.add_filter(filter);
|
|
}
|
|
|
|
public SList<File> get_files() {
|
|
return this.chooser.get_files();
|
|
}
|
|
|
|
public int run() {
|
|
return this.chooser.run();
|
|
}
|
|
|
|
public void hide() {
|
|
this.chooser.hide();
|
|
}
|
|
|
|
public void destroy() {
|
|
this.chooser.destroy();
|
|
}
|
|
|
|
private void on_update_preview() {
|
|
string? filename = chooser.get_preview_filename();
|
|
if (filename == null) {
|
|
chooser.set_preview_widget_active(false);
|
|
return;
|
|
}
|
|
|
|
// read the image format data first
|
|
int width = 0;
|
|
int height = 0;
|
|
Gdk.PixbufFormat? format = Gdk.Pixbuf.get_file_info(filename, out width, out height);
|
|
|
|
if (format == null) {
|
|
chooser.set_preview_widget_active(false);
|
|
return;
|
|
}
|
|
|
|
// if the image is too big, resize it
|
|
Gdk.Pixbuf pixbuf;
|
|
try {
|
|
pixbuf = new Gdk.Pixbuf.from_file_at_scale(filename, PREVIEW_SIZE, PREVIEW_SIZE, true);
|
|
} catch (Error e) {
|
|
chooser.set_preview_widget_active(false);
|
|
return;
|
|
}
|
|
|
|
if (pixbuf == null) {
|
|
chooser.set_preview_widget_active(false);
|
|
return;
|
|
}
|
|
|
|
pixbuf = pixbuf.apply_embedded_orientation();
|
|
|
|
// distribute the extra space around the image
|
|
int extra_space = PREVIEW_SIZE - pixbuf.width;
|
|
int smaller_half = extra_space/2;
|
|
int larger_half = extra_space - smaller_half;
|
|
|
|
// pad the image manually (avoids rounding errors)
|
|
preview_image.set_margin_start(PREVIEW_PADDING + smaller_half);
|
|
preview_image.set_margin_end(PREVIEW_PADDING + larger_half);
|
|
|
|
// show the preview
|
|
preview_image.set_from_pixbuf(pixbuf);
|
|
chooser.set_preview_widget_active(true);
|
|
}
|
|
}
|