Refactor font loading from per-document to the portfolio (#659)

* Cleanup default font loading

* Refactor fonts

* Fix menulist mouse navigation

* Format

* Formatting

* Move default font into consts.rs

Co-authored-by: Keavon Chambers <keavon@keavon.com>

Author: 0HyperCube

editor/src/communication/dispatcher.rs

@@ -41,6 +41,7 @@ const SIDE_EFFECT_FREE_MESSAGES: &[MessageDiscriminant] = &[
 	MessageDiscriminant::Frontend(FrontendMessageDiscriminant::UpdateDocumentLayerDetails),
 	MessageDiscriminant::Frontend(FrontendMessageDiscriminant::UpdateDocumentLayerTreeStructure),
 	MessageDiscriminant::Frontend(FrontendMessageDiscriminant::UpdateOpenDocumentsList),
+	MessageDiscriminant::Frontend(FrontendMessageDiscriminant::TriggerFontLoad),
 	MessageDiscriminant::Tool(ToolMessageDiscriminant::DocumentIsDirty),
 ];
 
@@ -108,6 +109,7 @@ impl Dispatcher {
 						(
 							self.message_handlers.portfolio_message_handler.active_document(),
 							&self.message_handlers.input_preprocessor_message_handler,
+							self.message_handlers.portfolio_message_handler.font_cache(),
 						),
 						&mut self.message_queue,
 					);

editor/src/consts.rs

@@ -1,4 +1,5 @@
 use graphene::color::Color;
+use graphene::layers::text_layer::Font;
 
 // Viewport
 pub const VIEWPORT_ZOOM_WHEEL_RATE: f64 = 1. / 600.;
@@ -65,6 +66,10 @@ pub const FILE_SAVE_SUFFIX: &str = ".graphite";
 // Colors
 pub const COLOR_ACCENT: Color = Color::from_unsafe(0x00 as f32 / 255., 0xA8 as f32 / 255., 0xFF as f32 / 255.);
 
+// Fonts
+pub const DEFAULT_FONT_FAMILY: &str = "Merriweather";
+pub const DEFAULT_FONT_STYLE: &str = "Normal (400)";
+
 // Document
 pub const GRAPHITE_DOCUMENT_VERSION: &str = "0.0.8"; // Remember to save a simple document and replace the test file at: editor\src\communication\graphite-test-document.graphite
 pub const VIEWPORT_ZOOM_TO_FIT_PADDING_SCALE_FACTOR: f32 = 1.05;

editor/src/dialog/dialogs/coming_soon_dialog.rs

@@ -1,5 +1,7 @@
 use crate::{layout::widgets::*, message_prelude::FrontendMessage};
 
+use std::fmt::Write;
+
 /// A dialog to notify users of an unfinished issue, optionally with an issue number.
 pub struct ComingSoon {
 	pub issue: Option<i32>,
@@ -16,7 +18,7 @@ impl PropertyHolder for ComingSoon {
 			..Default::default()
 		}))];
 		if let Some(issue) = self.issue {
-			details += &format!("— but you can help add it!\nSee issue #{issue} on GitHub.");
+			let _ = write!(details, "— but you can help add it!\nSee issue #{issue} on GitHub.");
 			buttons.push(WidgetHolder::new(Widget::TextButton(TextButton {
 				label: format!("Issue #{issue}"),
 				min_width: 96,

editor/src/document/artboard_message_handler.rs

@@ -3,6 +3,7 @@ use crate::message_prelude::*;
 use graphene::color::Color;
 use graphene::document::Document as GrapheneDocument;
 use graphene::layers::style::{self, Fill, ViewMode};
+use graphene::layers::text_layer::FontCache;
 use graphene::DocumentResponse;
 use graphene::Operation as DocumentOperation;
 
@@ -22,16 +23,16 @@ impl ArtboardMessageHandler {
 	}
 }
 
-impl MessageHandler<ArtboardMessage, ()> for ArtboardMessageHandler {
+impl MessageHandler<ArtboardMessage, &FontCache> for ArtboardMessageHandler {
 	#[remain::check]
-	fn process_action(&mut self, message: ArtboardMessage, _: (), responses: &mut VecDeque<Message>) {
+	fn process_action(&mut self, message: ArtboardMessage, font_cache: &FontCache, responses: &mut VecDeque<Message>) {
 		use ArtboardMessage::*;
 
 		#[remain::sorted]
 		match message {
 			// Sub-messages
 			#[remain::unsorted]
-			DispatchOperation(operation) => match self.artboards_graphene_document.handle_operation(*operation) {
+			DispatchOperation(operation) => match self.artboards_graphene_document.handle_operation(*operation, font_cache) {
 				Ok(Some(document_responses)) => {
 					for response in document_responses {
 						match &response {
@@ -86,7 +87,7 @@ impl MessageHandler<ArtboardMessage, ()> for ArtboardMessageHandler {
 				} else {
 					responses.push_back(
 						FrontendMessage::UpdateDocumentArtboards {
-							svg: self.artboards_graphene_document.render_root(ViewMode::Normal),
+							svg: self.artboards_graphene_document.render_root(ViewMode::Normal, font_cache),
 						}
 						.into(),
 					);

editor/src/document/document_message.rs

@@ -72,18 +72,10 @@ pub enum DocumentMessage {
 	FolderChanged {
 		affected_folder_path: Vec<LayerId>,
 	},
-	FontLoaded {
-		font_file_url: String,
-		data: Vec<u8>,
-		is_default: bool,
-	},
 	GroupSelectedLayers,
 	LayerChanged {
 		affected_layer_path: Vec<LayerId>,
 	},
-	LoadFont {
-		font_file_url: String,
-	},
 	MoveSelectedLayersTo {
 		folder_path: Vec<LayerId>,
 		insert_index: isize,