getting some presentation editor changes ready

src/ui/presentation_editor.rs

@@ -0,0 +1,190 @@
+use std::{io, path::PathBuf};
+
+use crate::core::{
+    presentations::Presentation, service_items::ServiceTrait,
+    slide::Slide,
+};
+use cosmic::{
+    dialog::file_chooser::{open::Dialog, FileFilter},
+    iced::{alignment::Vertical, Length},
+    iced_widget::{column, row},
+    theme,
+    widget::{
+        self, button, container, horizontal_space, icon, text,
+        text_input, Space,
+    },
+    Element, Task,
+};
+use tracing::{debug, error, warn};
+
+#[derive(Debug)]
+pub struct PresentationEditor {
+    pub presentation: Option<Presentation>,
+    slides: Option<Vec<Slide>>,
+    title: String,
+    editing: bool,
+}
+
+pub enum Action {
+    Task(Task<Message>),
+    UpdatePresentation(Presentation),
+    None,
+}
+
+#[derive(Debug, Clone)]
+pub enum Message {
+    ChangePresentation(Presentation),
+    Update(Presentation),
+    ChangeTitle(String),
+    PickPresentation,
+    Edit(bool),
+    None,
+}
+
+impl PresentationEditor {
+    pub fn new() -> Self {
+        Self {
+            presentation: None,
+            slides: None,
+            title: "Death was Arrested".to_string(),
+            editing: false,
+        }
+    }
+    pub fn update(&mut self, message: Message) -> Action {
+        match message {
+            Message::ChangePresentation(presentation) => {
+                self.presentation = Some(presentation.clone());
+                self.title = presentation.title.clone();
+                let Ok(slides) = presentation.to_slides() else {
+                    return Action::None;
+                };
+                self.slides = Some(slides);
+                return self.update(Message::Update(presentation));
+            }
+            Message::ChangeTitle(title) => {
+                self.title = title.clone();
+                if let Some(presentation) = &self.presentation {
+                    let mut presentation = presentation.clone();
+                    presentation.title = title;
+                    return self
+                        .update(Message::Update(presentation));
+                }
+            }
+            Message::Edit(edit) => {
+                debug!(edit);
+                self.editing = edit;
+            }
+            Message::Update(presentation) => {
+                warn!(?presentation);
+                return Action::UpdatePresentation(presentation);
+            }
+            Message::PickPresentation => {
+                let presentation_id = self
+                    .presentation
+                    .as_ref()
+                    .map(|v| v.id)
+                    .unwrap_or_default()
+                    .clone();
+                let task = Task::perform(
+                    pick_presentation(),
+                    move |presentation_result| {
+                        if let Ok(presentation) = presentation_result
+                        {
+                            let mut presentation =
+                                Presentation::from(presentation);
+                            presentation.id = presentation_id;
+                            Message::ChangePresentation(presentation)
+                        } else {
+                            Message::None
+                        }
+                    },
+                );
+                return Action::Task(task);
+            }
+            Message::None => (),
+        }
+        Action::None
+    }
+
+    pub fn view(&self) -> Element<Message> {
+        let container = if let Some(slides) = &self.slides {
+            todo!();
+            // container(presentation)
+        } else {
+            container(Space::new(0, 0))
+        };
+        let column = column![
+            self.toolbar(),
+            container.center_x(Length::FillPortion(2))
+        ]
+        .spacing(theme::active().cosmic().space_l());
+        column.into()
+    }
+
+    fn toolbar(&self) -> Element<Message> {
+        let title_box = text_input("Title...", &self.title)
+            .on_input(Message::ChangeTitle);
+
+        let presentation_selector = button::icon(
+            icon::from_name("folder-presentations-symbolic").scale(2),
+        )
+        .label("Presentation")
+        .tooltip("Select a presentation")
+        .on_press(Message::PickPresentation)
+        .padding(10);
+
+        row![
+            text::body("Title:"),
+            title_box,
+            horizontal_space(),
+            presentation_selector
+        ]
+        .align_y(Vertical::Center)
+        .spacing(10)
+        .into()
+    }
+
+    pub const fn editing(&self) -> bool {
+        self.editing
+    }
+}
+
+impl Default for PresentationEditor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+async fn pick_presentation() -> Result<PathBuf, PresentationError> {
+    let dialog = Dialog::new().title("Choose a presentation...");
+    let bg_filter = FileFilter::new("Presentations")
+        .extension("pdf")
+        .extension("html");
+    dialog
+        .filter(bg_filter)
+        .directory(dirs::home_dir().expect("oops"))
+        .open_file()
+        .await
+        .map_err(|e| {
+            error!(?e);
+            PresentationError::DialogClosed
+        })
+        .map(|file| file.url().to_file_path().unwrap())
+    // rfd::AsyncFileDialog::new()
+    //     .set_title("Choose a background...")
+    //     .add_filter(
+    //         "Presentations and Presentations",
+    //         &["png", "jpeg", "mp4", "webm", "mkv", "jpg", "mpeg"],
+    //     )
+    //     .set_directory(dirs::home_dir().unwrap())
+    //     .pick_file()
+    //     .await
+    //     .ok_or(PresentationError::BackgroundDialogClosed)
+    //     .map(|file| file.path().to_owned())
+}
+
+#[derive(Debug, Clone)]
+pub enum PresentationError {
+    DialogClosed,
+    IOError(io::ErrorKind),
+}