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window: Implement drag and drop

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The main page is no longer a lie.
This commit is contained in:
Christopher Davis 2021-12-27 15:03:31 -08:00
parent 5d9567507c
commit be70bdafe5
5 changed files with 67 additions and 11 deletions
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45
src/window.rs
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@ -26,6 +26,7 @@ use gtk::subclass::prelude::*;
use gtk::CompositeTemplate;
use crate::config;
use crate::util;
use crate::widgets::LpImageView;
mod imp {
@ -65,6 +66,8 @@ mod imp {
pub status_page: TemplateChild<adw::StatusPage>,
#[template_child]
pub image_view: TemplateChild<LpImageView>,
#[template_child]
pub drop_target: TemplateChild<gtk::DropTarget>,
}
#[glib::object_subclass]
@ -135,6 +138,39 @@ mod imp {
}
}),
);
self.drop_target.set_types(&[gdk::FileList::static_type()]);
self.drop_target.connect_drop(
clone!(@weak obj => @default-return false, move |_, value, _, _| {
// Here we use a GValue, which is a dynamic object that can hold different types,
// e.g. strings, numbers, or in this case objects. In order to get the GdkFileList
// from the GValue, we need to use the `get()` method.
//
// We've added type annotations here, and written it as `let list: gdk::FileList = ...`,
// but you might also see places where type arguments are used.
// This line could have been written as `let list = value.get::<gdk::FileList>().unwrap()`.
let list: gdk::FileList = value.get().unwrap();
// TODO: Handle this like EOG and make a "directory" out of the given files
let file = list.files().get(0).unwrap().clone();
let info = util::query_attributes(
&file,
vec![&gio::FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE])
.expect("Could not query file info");
if info
.content_type()
.map(|t| t.to_string())
.filter(|t| t.starts_with("image/"))
.is_some() {
obj.set_image_from_file(&file, false);
} else {
log::debug!("{} was not a valid image.", file.uri().to_string());
}
true
}),
);
}
}
@ -201,7 +237,7 @@ impl LpWindow {
clone!(@weak self as win, @strong chooser => move |_, resp| {
if resp == gtk::ResponseType::Accept {
if let Some(file) = chooser.file() {
win.set_image_from_file(&file);
win.set_image_from_file(&file, true);
}
}
}),
@ -239,13 +275,16 @@ impl LpWindow {
}
}
pub fn set_image_from_file(&self, file: &gio::File) {
pub fn set_image_from_file(&self, file: &gio::File, resize: bool) {
let imp = imp::LpWindow::from_instance(self);
log::debug!("Loading file: {}", file.uri().to_string());
match imp.image_view.set_image_from_file(file) {
Ok((width, height)) => {
self.resize_from_dimensions(width, height);
if resize {
self.resize_from_dimensions(width, height);
}
imp.stack.set_visible_child(&*imp.image_view);
imp.image_view.grab_focus();
self.set_actions_enabled(true)