Restructure project directories (#333)

`/client/web` -> `/frontend`
`/client/cli` -> *delete for now*
`/client/native` -> *delete for now*
`/core/editor` -> `/editor`
`/core/document` -> `/graphene`
`/core/renderer` -> `/charcoal`
`/core/proc-macro` -> `/proc-macros` *(now plural)*

frontend/wasm/src/document.rs

@@ -0,0 +1,313 @@
+use crate::shims::Error;
+use crate::wrappers::{translate_key, translate_tool, Color};
+use crate::EDITOR_STATE;
+use editor::input::input_preprocessor::ModifierKeys;
+use editor::input::mouse::ScrollDelta;
+use editor::message_prelude::*;
+use editor::misc::EditorError;
+use editor::tool::{tool_options::ToolOptions, tools, ToolType};
+use editor::{input::mouse::MouseState, LayerId};
+use graphene::layers::BlendMode;
+use wasm_bindgen::prelude::*;
+
+fn convert_error(err: editor::EditorError) -> JsValue {
+	Error::new(&err.to_string()).into()
+}
+
+/// Modify the currently selected tool in the document state store
+#[wasm_bindgen]
+pub fn select_tool(tool: String) -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| match translate_tool(&tool) {
+		Some(tool) => editor.borrow_mut().handle_message(ToolMessage::SelectTool(tool)).map_err(convert_error),
+		None => Err(Error::new(&format!("Couldn't select {} because it was not recognized as a valid tool", tool)).into()),
+	})
+}
+
+/// Update the options for a given tool
+#[wasm_bindgen]
+pub fn set_tool_options(tool: String, options: &JsValue) -> Result<(), JsValue> {
+	match options.into_serde::<ToolOptions>() {
+		Ok(options) => EDITOR_STATE.with(|editor| match translate_tool(&tool) {
+			Some(tool) => editor.borrow_mut().handle_message(ToolMessage::SetToolOptions(tool, options)).map_err(convert_error),
+			None => Err(Error::new(&format!("Couldn't set options for {} because it was not recognized as a valid tool", tool)).into()),
+		}),
+		Err(err) => Err(Error::new(&format!("Invalid JSON for ToolOptions: {}", err)).into()),
+	}
+}
+
+/// Send a message to a given tool
+#[wasm_bindgen]
+pub fn send_tool_message(tool: String, message: &JsValue) -> Result<(), JsValue> {
+	let tool_message = match translate_tool(&tool) {
+		Some(tool) => match tool {
+			ToolType::Select => match message.into_serde::<tools::select::SelectMessage>() {
+				Ok(select_message) => Ok(ToolMessage::Select(select_message)),
+				Err(err) => Err(Error::new(&format!("Invalid message for {}: {}", tool, err)).into()),
+			},
+			_ => Err(Error::new(&format!("Tool message sending not implemented for {}", tool)).into()),
+		},
+		None => Err(Error::new(&format!("Couldn't send message for {} because it was not recognized as a valid tool", tool)).into()),
+	};
+	EDITOR_STATE.with(|editor| match tool_message {
+		Ok(tool_message) => editor.borrow_mut().handle_message(tool_message).map_err(convert_error),
+		Err(err) => Err(err),
+	})
+}
+
+#[wasm_bindgen]
+pub fn select_document(document: usize) -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::SelectDocument(document)).map_err(convert_error))
+}
+
+#[wasm_bindgen]
+pub fn get_open_documents_list() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::GetOpenDocumentsList).map_err(convert_error))
+}
+
+#[wasm_bindgen]
+pub fn new_document() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::NewDocument).map_err(convert_error))
+}
+
+#[wasm_bindgen]
+pub fn close_document(document: usize) -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::CloseDocument(document)).map_err(convert_error))
+}
+
+#[wasm_bindgen]
+pub fn close_all_documents() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::CloseAllDocuments).map_err(convert_error))
+}
+
+#[wasm_bindgen]
+pub fn close_active_document_with_confirmation() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::CloseActiveDocumentWithConfirmation).map_err(convert_error))
+}
+
+#[wasm_bindgen]
+pub fn close_all_documents_with_confirmation() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentsMessage::CloseAllDocumentsWithConfirmation).map_err(convert_error))
+}
+
+// TODO: Call event when the panels are resized
+/// Viewport resized
+#[wasm_bindgen]
+pub fn viewport_resize(new_width: u32, new_height: u32) -> Result<(), JsValue> {
+	let ev = InputPreprocessorMessage::ViewportResize((new_width, new_height).into());
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+// TODO: When a mouse button is down that started in the viewport, this should trigger even when the mouse is outside the viewport (or even the browser window if the browser supports it)
+/// Mouse movement within the screenspace bounds of the viewport
+#[wasm_bindgen]
+pub fn on_mouse_move(x: u32, y: u32, modifiers: u8) -> Result<(), JsValue> {
+	let mods = ModifierKeys::from_bits(modifiers).expect("invalid modifier keys");
+	// TODO: Convert these screenspace viewport coordinates to canvas coordinates based on the current zoom and pan
+	let ev = InputPreprocessorMessage::MouseMove((x, y).into(), mods);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// Mouse scrolling within the screenspace bounds of the viewport
+#[wasm_bindgen]
+pub fn on_mouse_scroll(delta_x: i32, delta_y: i32, delta_z: i32, modifiers: u8) -> Result<(), JsValue> {
+	// TODO: Convert these screenspace viewport coordinates to canvas coordinates based on the current zoom and pan
+	let mods = ModifierKeys::from_bits(modifiers).expect("invalid modifier keys");
+	let ev = InputPreprocessorMessage::MouseScroll(ScrollDelta::new(delta_x, delta_y, delta_z), mods);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// A mouse button depressed within screenspace the bounds of the viewport
+#[wasm_bindgen]
+pub fn on_mouse_down(x: u32, y: u32, mouse_keys: u8, modifiers: u8) -> Result<(), JsValue> {
+	let mods = ModifierKeys::from_bits(modifiers).expect("invalid modifier keys");
+	let ev = InputPreprocessorMessage::MouseDown(MouseState::from_u8_pos(mouse_keys, (x, y).into()), mods);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// A mouse button released
+#[wasm_bindgen]
+pub fn on_mouse_up(x: u32, y: u32, mouse_keys: u8, modifiers: u8) -> Result<(), JsValue> {
+	let mods = ModifierKeys::from_bits(modifiers).expect("invalid modifier keys");
+	let ev = InputPreprocessorMessage::MouseUp(MouseState::from_u8_pos(mouse_keys, (x, y).into()), mods);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// A keyboard button depressed within screenspace the bounds of the viewport
+#[wasm_bindgen]
+pub fn on_key_down(name: String, modifiers: u8) -> Result<(), JsValue> {
+	let key = translate_key(&name);
+	let mods = ModifierKeys::from_bits(modifiers).expect("invalid modifier keys");
+	log::trace!("key down {:?}, name: {}, modifiers: {:?}", key, name, mods);
+	let ev = InputPreprocessorMessage::KeyDown(key, mods);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// A keyboard button released
+#[wasm_bindgen]
+pub fn on_key_up(name: String, modifiers: u8) -> Result<(), JsValue> {
+	let key = translate_key(&name);
+	let mods = ModifierKeys::from_bits(modifiers).expect("invalid modifier keys");
+	log::trace!("key up {:?}, name: {}, modifiers: {:?}", key, name, mods);
+	let ev = InputPreprocessorMessage::KeyUp(key, mods);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// Update primary color
+#[wasm_bindgen]
+pub fn update_primary_color(primary_color: Color) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(ToolMessage::SelectPrimaryColor(primary_color.inner())))
+		.map_err(convert_error)
+}
+
+/// Update secondary color
+#[wasm_bindgen]
+pub fn update_secondary_color(secondary_color: Color) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(ToolMessage::SelectSecondaryColor(secondary_color.inner())))
+		.map_err(convert_error)
+}
+
+/// Swap primary and secondary color
+#[wasm_bindgen]
+pub fn swap_colors() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ToolMessage::SwapColors)).map_err(convert_error)
+}
+
+/// Reset primary and secondary colors to their defaults
+#[wasm_bindgen]
+pub fn reset_colors() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ToolMessage::ResetColors)).map_err(convert_error)
+}
+
+/// Undo history one step
+#[wasm_bindgen]
+pub fn undo() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::Undo)).map_err(convert_error)
+}
+
+/// Select all layers
+#[wasm_bindgen]
+pub fn select_all_layers() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::SelectAllLayers)).map_err(convert_error)
+}
+
+/// Deselect all layers
+#[wasm_bindgen]
+pub fn deselect_all_layers() -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::DeselectAllLayers))
+		.map_err(convert_error)
+}
+
+/// Reorder selected layer
+#[wasm_bindgen]
+pub fn reorder_selected_layers(delta: i32) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::ReorderSelectedLayers(delta)))
+		.map_err(convert_error)
+}
+
+/// Set the blend mode for the selected layers
+#[wasm_bindgen]
+pub fn set_blend_mode_for_selected_layers(blend_mode_svg_style_name: String) -> Result<(), JsValue> {
+	let blend_mode = match blend_mode_svg_style_name.as_str() {
+		"normal" => BlendMode::Normal,
+		"multiply" => BlendMode::Multiply,
+		"darken" => BlendMode::Darken,
+		"color-burn" => BlendMode::ColorBurn,
+		"screen" => BlendMode::Screen,
+		"lighten" => BlendMode::Lighten,
+		"color-dodge" => BlendMode::ColorDodge,
+		"overlay" => BlendMode::Overlay,
+		"soft-light" => BlendMode::SoftLight,
+		"hard-light" => BlendMode::HardLight,
+		"difference" => BlendMode::Difference,
+		"exclusion" => BlendMode::Exclusion,
+		"hue" => BlendMode::Hue,
+		"saturation" => BlendMode::Saturation,
+		"color" => BlendMode::Color,
+		"luminosity" => BlendMode::Luminosity,
+		_ => return Err(convert_error(EditorError::Misc("UnknownBlendMode".to_string()))),
+	};
+
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::SetBlendModeForSelectedLayers(blend_mode)).map_err(convert_error))
+}
+
+/// Set the opacity for the selected layers
+#[wasm_bindgen]
+pub fn set_opacity_for_selected_layers(opacity_percent: f64) -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| {
+		editor
+			.borrow_mut()
+			.handle_message(DocumentMessage::SetOpacityForSelectedLayers(opacity_percent / 100.))
+			.map_err(convert_error)
+	})
+}
+
+/// Export the document
+#[wasm_bindgen]
+pub fn export_document() -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::ExportDocument)).map_err(convert_error)
+}
+
+/// Sets the zoom to the value
+#[wasm_bindgen]
+pub fn set_zoom(new_zoom: f64) -> Result<(), JsValue> {
+	let ev = MovementMessage::SetCanvasZoom(new_zoom);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// Sets the rotation to the new value (in radians)
+#[wasm_bindgen]
+pub fn set_rotation(new_radians: f64) -> Result<(), JsValue> {
+	let ev = MovementMessage::SetCanvasRotation(new_radians);
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(ev)).map_err(convert_error)
+}
+
+/// Update the list of selected layers. The layer paths have to be stored in one array and are separated by LayerId::MAX
+#[wasm_bindgen]
+pub fn select_layers(paths: Vec<LayerId>) -> Result<(), JsValue> {
+	let paths = paths.split(|id| *id == LayerId::MAX).map(|path| path.to_vec()).collect();
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::SelectLayers(paths)))
+		.map_err(convert_error)
+}
+
+/// Toggle visibility of a layer from the layer list
+#[wasm_bindgen]
+pub fn toggle_layer_visibility(path: Vec<LayerId>) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::ToggleLayerVisibility(path)))
+		.map_err(convert_error)
+}
+
+/// Toggle expansions state of a layer from the layer list
+#[wasm_bindgen]
+pub fn toggle_layer_expansion(path: Vec<LayerId>) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::ToggleLayerExpansion(path)))
+		.map_err(convert_error)
+}
+
+/// Renames a layer from the layer list
+#[wasm_bindgen]
+pub fn rename_layer(path: Vec<LayerId>, new_name: String) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::RenameLayer(path, new_name)))
+		.map_err(convert_error)
+}
+
+/// Deletes a layer from the layer list
+#[wasm_bindgen]
+pub fn delete_layer(path: Vec<LayerId>) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::DeleteLayer(path)))
+		.map_err(convert_error)
+}
+
+/// Requests the backend to add a layer to the layer list
+#[wasm_bindgen]
+pub fn add_folder(path: Vec<LayerId>) -> Result<(), JsValue> {
+	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::AddFolder(path))).map_err(convert_error)
+}