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window: New way to detect own window in d+d

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This is a (hopefully) cleaner way to detect if we are
dragging out of the own window to not show drag indicator
in that case.

Part-of: <https://gitlab.gnome.org/GNOME/loupe/-/merge_requests/258>
This commit is contained in:
Sophie Herold 2023-07-15 20:21:00 +02:00
parent 78b16518e5
commit cf8fa499d9
2 changed files with 12 additions and 20 deletions
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15
src/widgets/image_view.rs
View file

@ -78,6 +78,8 @@ mod imp {
#[template_child]
pub sliding_view: TemplateChild<LpSlidingView>,
pub drag_source: gtk::DragSource,
pub(super) model: RefCell<LpFileModel>,
pub(super) preserve_content: Cell<bool>,
@ -164,10 +166,9 @@ mod imp {
self.current_image_signals.set(signal_group).unwrap();
let source = gtk::DragSource::new();
source.set_exclusive(true);
self.drag_source.set_exclusive(true);
source.connect_prepare(
self.drag_source.connect_prepare(
glib::clone!(@weak obj => @default-return None, move |gesture, _, _| {
let is_scrollable = obj
.current_page()
@ -184,7 +185,7 @@ mod imp {
}),
);
source.connect_drag_begin(glib::clone!(@weak obj => move |source, _| {
self.drag_source.connect_drag_begin(glib::clone!(@weak obj => move |source, _| {
if let Some(paintable) = obj.current_image().and_then(|p| p.thumbnail()) {
// -6 for cursor width, +16 for margin in .drag-icon
source.set_icon(Some(&paintable), paintable.intrinsic_width() / 2 - 6 + 16, -12);
@ -198,7 +199,7 @@ mod imp {
};
}));
obj.add_controller(source);
obj.add_controller(self.drag_source.clone());
}
}
@ -545,6 +546,10 @@ impl LpImageView {
.and_then(|x| x.image().file())
}
pub fn drag_source(&self) -> gtk::DragSource {
self.imp().drag_source.clone()
}
/// Returns `true` if there is an image before the current one
pub fn is_previous_available(&self) -> bool {
if let Some(file) = self.current_file() {