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@ -3,22 +3,40 @@ use ruma::api::client::media::get_content_thumbnail::v3::Method;
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use super::{HistoryViewerEvent, VisualMediaHistoryViewer}; |
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use crate::{ |
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session::model::Session, |
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spawn, |
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utils::{ |
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key_bindings, |
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matrix::VisualMediaMessage, |
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media::{ |
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image::{ImageRequestPriority, ThumbnailSettings}, |
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image::{Blurhash, ImageRequestPriority, ThumbnailSettings}, |
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FrameDimensions, |
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}, |
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}, |
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}; |
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/// The default size requested by a thumbnail.
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const THUMBNAIL_SIZE: u32 = 300; |
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/// The default size for the preview.
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const PREVIEW_SIZE: u32 = 300; |
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/// The default dimensions of the preview.
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const PREVIEW_DIMENSIONS: FrameDimensions = FrameDimensions { |
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width: PREVIEW_SIZE, |
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height: PREVIEW_SIZE, |
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}; |
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/// The possible sources of the preview of a visual media.
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#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)] |
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enum MediaPreview { |
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/// There is no media preview.
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#[default] |
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None, |
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/// The media preview is the low-quality placeholder.
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Placeholder, |
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/// The media preview is the thumbnail.
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Thumbnail, |
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} |
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mod imp { |
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use std::cell::RefCell; |
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use std::cell::{Cell, RefCell}; |
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use glib::subclass::InitializingObject; |
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@ -34,10 +52,13 @@ mod imp {
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overlay: TemplateChild<gtk::Overlay>, |
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#[template_child] |
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picture: TemplateChild<gtk::Picture>, |
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/// The file event.
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#[template_child] |
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play_icon: TemplateChild<gtk::Image>, |
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/// The event that is previewed.
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#[property(get, set = Self::set_event, explicit_notify, nullable)] |
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event: RefCell<Option<HistoryViewerEvent>>, |
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overlay_icon: RefCell<Option<gtk::Image>>, |
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/// Which preview is presented by the picture.
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preview: Cell<MediaPreview>, |
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} |
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#[glib::object_subclass] |
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@ -95,80 +116,84 @@ mod imp {
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return; |
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} |
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// Reset the preview.
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self.preview.take(); |
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self.picture.set_paintable(None::<&gdk::Paintable>); |
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self.event.replace(event); |
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self.update(); |
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self.update(); |
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self.obj().notify_event(); |
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} |
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/// Update this item for the current state.
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fn update(&self) { |
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let Some(media_message) = self |
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.event |
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.borrow() |
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.as_ref() |
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.and_then(HistoryViewerEvent::visual_media_message) |
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else { |
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let Some(event) = self.event.borrow().clone() else { |
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return; |
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}; |
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let Some(media_message) = event.visual_media_message() else { |
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return; |
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}; |
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let show_overlay = matches!(media_message, VisualMediaMessage::Video(_)); |
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self.show_video_overlay(show_overlay); |
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let is_video = matches!(media_message, VisualMediaMessage::Video(_)); |
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self.play_icon.set_visible(is_video); |
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self.obj().set_tooltip_text(Some(&media_message.filename())); |
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spawn!( |
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glib::Priority::LOW, |
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clone!( |
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#[weak(rename_to = imp)] |
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self, |
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async move { |
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imp.load_thumbnail(media_message).await; |
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} |
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) |
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); |
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} |
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if let Some(blurhash) = media_message.blurhash() { |
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spawn!( |
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glib::Priority::LOW, |
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clone!( |
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#[weak(rename_to = imp)] |
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self, |
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async move { |
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imp.load_placeholder(blurhash).await; |
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} |
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) |
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); |
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} |
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/// Set whether to show the video overlay.
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fn show_video_overlay(&self, show: bool) { |
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if show && self.overlay_icon.borrow().is_none() { |
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let icon = gtk::Image::builder() |
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.icon_name("media-playback-start-symbolic") |
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.css_classes(vec!["osd".to_string()]) |
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.halign(gtk::Align::Center) |
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.valign(gtk::Align::Center) |
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.accessible_role(gtk::AccessibleRole::Presentation) |
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.build(); |
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self.overlay.add_overlay(&icon); |
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self.overlay_icon.replace(Some(icon)); |
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} else if !show { |
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if let Some(icon) = self.overlay_icon.take() { |
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self.overlay.remove_overlay(&icon); |
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} |
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let Some(room) = event.room() else { |
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return; |
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}; |
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let Some(session) = room.session() else { |
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return; |
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}; |
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if session.settings().should_room_show_media_previews(&room) { |
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spawn!( |
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glib::Priority::LOW, |
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clone!( |
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#[weak(rename_to = imp)] |
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self, |
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async move { |
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imp.load_thumbnail(media_message, &session).await; |
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} |
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) |
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); |
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} |
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} |
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/// Load the thumbnail for the given media message.
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async fn load_thumbnail(&self, media_message: VisualMediaMessage) { |
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let Some(session) = self |
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.event |
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.borrow() |
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.as_ref() |
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.and_then(HistoryViewerEvent::room) |
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.and_then(|r| r.session()) |
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else { |
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/// Load the thumbnail for the given Blurhash.
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async fn load_placeholder(&self, blurhash: Blurhash) { |
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let Some(placeholder_texture) = blurhash.into_texture(PREVIEW_DIMENSIONS).await else { |
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return; |
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}; |
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// Do not replace the thumbnail by the placeholder, in case the thumbnail is
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// loaded before.
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if self.preview.get() != MediaPreview::Thumbnail { |
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self.picture.set_paintable(Some(&placeholder_texture)); |
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self.preview.set(MediaPreview::Placeholder); |
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} |
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} |
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/// Load the thumbnail for the given media message.
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async fn load_thumbnail(&self, media_message: VisualMediaMessage, session: &Session) { |
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let client = session.client(); |
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let scale_factor = u32::try_from(self.obj().scale_factor()).unwrap_or(1); |
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let size = THUMBNAIL_SIZE * scale_factor; |
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let dimensions = FrameDimensions { |
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width: size, |
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height: size, |
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}; |
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let dimensions = PREVIEW_DIMENSIONS.scale(scale_factor); |
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let settings = ThumbnailSettings { |
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dimensions, |
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@ -183,6 +208,7 @@ mod imp {
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{ |
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self.picture |
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.set_paintable(Some(&gdk::Paintable::from(image))); |
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self.preview.set(MediaPreview::Thumbnail); |
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} |
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} |
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@ -204,7 +230,7 @@ mod imp {
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} |
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glib::wrapper! { |
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/// A row presenting a visual media (image or video) event.
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/// An item presenting a visual media (image or video) event.
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pub struct VisualMediaItem(ObjectSubclass<imp::VisualMediaItem>) |
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@extends gtk::Widget, @implements gtk::Accessible; |
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} |
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Kévin Commaille
11 months ago