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accept dnd drops from app library prototype

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This commit is contained in:
Ashley Wulber 2021-12-16 09:38:20 -05:00 • committed by Jeremy Soller
parent b9247e37c4
commit 83b6f3da5e
9 changed files with 215 additions and 47 deletions
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3
examples/dock/dock_item/imp.rs
View file

@ -2,6 +2,8 @@ use gtk::glib;
use gtk::prelude::*;
use gtk::subclass::prelude::*;
use gtk4 as gtk;
use gtk4::DragSource;
use once_cell::sync::OnceCell;
use gtk::CompositeTemplate;
@ -10,6 +12,7 @@ use gtk::CompositeTemplate;
pub struct DockItem {
#[template_child]
pub image: TemplateChild<gtk::Image>,
pub drag_controller: OnceCell<DragSource>,
}
#[glib::object_subclass]

115
examples/dock/dock_item/mod.rs
View file

@ -1,15 +1,14 @@
use crate::icon_source;
use gdk4::ContentProvider;
use gdk4::Display;
use gio::File;
use glib::FromVariant;
use glib::Variant;
use gio::Icon;
use gio::ListStore;
use gtk4 as gtk;
use gtk4::DragSource;
use gtk4::IconTheme;
use gtk4::TreeIter;
mod imp;
use crate::ApplicationObject;
use gtk::glib;
use gtk::prelude::*;
use gtk::subclass::prelude::*;
@ -27,44 +26,94 @@ impl Default for DockItem {
impl DockItem {
pub fn new() -> Self {
glib::Object::new(&[]).expect("Failed to create DockItem")
let dc = DragSource::builder()
.name("dock drag source")
.actions(gdk4::DragAction::MOVE)
.build();
let self_: DockItem = glib::Object::new(&[]).expect("Failed to create DockItem");
self_.add_controller(&dc);
imp::DockItem::from_instance(&self_)
.drag_controller
.set(dc)
.expect("Failed to set dock item");
self_
}
pub fn set_app_info(&self, app_info: &gio::DesktopAppInfo) {
pub fn drag_controller(&self) -> &DragSource {
let imp = imp::DockItem::from_instance(self);
imp.drag_controller
.get()
.expect("Could not get drag_controller")
}
// TODO current method seems very messy...
// refactor to emit event for removing the item?
pub fn set_app_info(
&self,
app_info: &gio::DesktopAppInfo,
i: u32,
saved_app_model: &ListStore,
) {
dbg!("setting app info");
let self_ = imp::DockItem::from_instance(self);
self_.image.set_tooltip_text(Some(&app_info.name()));
let drag = DragSource::builder()
.name("application library drag source")
.actions(gdk4::DragAction::COPY)
// .content()
.build();
self.add_controller(&drag);
if let Some(file) = app_info.filename() {
let file = File::for_path(file);
let provider = ContentProvider::for_value(&file.to_value());
drag.set_content(Some(&provider));
}
if let Some(icon) = app_info.icon() {
dbg!("setting icon {}", app_info.name());
self_.image.set_from_gicon(&icon);
// set drag source icon if possible...
// gio Icon is not easily converted to a Paintable, but this seems to be the correct method
if let Some(default_display) = &Display::default() {
if let Some(icon_theme) = IconTheme::for_display(default_display) {
if let Some(paintable_icon) = icon_theme.lookup_by_gicon(
&icon,
64,
1,
gtk4::TextDirection::None,
gtk4::IconLookupFlags::empty(),
) {
drag.set_icon(Some(&paintable_icon), 32, 32);
if let Some(drag_controller) = self_.drag_controller.get() {
// if let Some(file) = app_info.filename() {
// let file = File::for_path(file);
let provider = ContentProvider::for_value(&app_info.to_value());
drag_controller.set_content(Some(&provider));
// }
drag_controller.connect_drag_end(move |_self, _drag, delete_data| {
dbg!("removing", delete_data);
});
drag_controller.connect_drag_cancel(
glib::clone!(@weak saved_app_model => @default-return true, move |_self, _drag, _delete_data| {
dbg!("removing {}", i);
if saved_app_model.n_items() > i {
saved_app_model.remove(i);
}
true
}),
);
drag_controller.connect_drag_end(
glib::clone!(@weak saved_app_model => move |_self, _drag, delete_data| {
dbg!("removing {}", i);
if delete_data && saved_app_model.n_items() > i {
saved_app_model.remove(i);
}
}),
);
let icon = app_info
.icon()
.unwrap_or(Icon::for_string("image-missing").expect("Failed to set default icon"));
drag_controller.connect_drag_begin(glib::clone!(@weak icon, => move |_self, drag| {
drag.set_selected_action(gdk4::DragAction::MOVE);
// set drag source icon if possible...
// gio Icon is not easily converted to a Paintable, but this seems to be the correct method
if let Some(default_display) = &Display::default() {
if let Some(icon_theme) = IconTheme::for_display(default_display) {
if let Some(paintable_icon) = icon_theme.lookup_by_gicon(
&icon,
64,
1,
gtk4::TextDirection::None,
gtk4::IconLookupFlags::empty(),
) {
_self.set_icon(Some(&paintable_icon), 32, 32);
}
}
}
}
}));
}
let icon = app_info
.icon()
.unwrap_or(Icon::for_string("image-missing").expect("Failed to set default icon"));
self_.image.set_from_gicon(&icon);
}
// pub fn set_app_info(&self, app_obj: ApplicationObject) {