Merge pull request #2417 from zed-industries/hover-markdown
Render markdown more correctly in the editor hover popover
This commit is contained in:
Max Brunsfeld
GitHub
commit
7258db7a4e
14 changed files with 827 additions and 307 deletions
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@ -463,6 +463,7 @@ pub struct EditorStyle {
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pub text: TextStyle,
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pub placeholder_text: Option<TextStyle>,
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pub theme: theme::Editor,
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pub theme_id: usize,
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}
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type CompletionId = usize;
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@ -7310,6 +7311,7 @@ fn build_style(
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) -> EditorStyle {
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let font_cache = cx.font_cache();
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let theme_id = settings.theme.meta.id;
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let mut theme = settings.theme.editor.clone();
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let mut style = if let Some(get_field_editor_theme) = get_field_editor_theme {
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let field_editor_theme = get_field_editor_theme(&settings.theme);
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@ -7323,6 +7325,7 @@ fn build_style(
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text: field_editor_theme.text,
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placeholder_text: field_editor_theme.placeholder_text,
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theme,
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theme_id,
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}
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} else {
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let font_family_id = settings.buffer_font_family;
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@ -7344,6 +7347,7 @@ fn build_style(
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},
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placeholder_text: None,
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theme,
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theme_id,
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}
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};
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@ -1,15 +1,16 @@
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use futures::FutureExt;
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use gpui::{
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actions,
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elements::{Flex, MouseEventHandler, Padding, Text},
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elements::{Flex, MouseEventHandler, Padding, ParentElement, Text},
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fonts::{HighlightStyle, Underline, Weight},
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impl_internal_actions,
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platform::{CursorStyle, MouseButton},
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AnyElement, AppContext, Axis, Element, ModelHandle, Task, ViewContext,
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AnyElement, AppContext, CursorRegion, Element, ModelHandle, MouseRegion, Task, ViewContext,
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};
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use language::{Bias, DiagnosticEntry, DiagnosticSeverity};
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use project::{HoverBlock, Project};
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use language::{Bias, DiagnosticEntry, DiagnosticSeverity, Language, LanguageRegistry};
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use project::{HoverBlock, HoverBlockKind, Project};
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use settings::Settings;
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use std::{ops::Range, time::Duration};
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use std::{ops::Range, sync::Arc, time::Duration};
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use util::TryFutureExt;
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use crate::{
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@ -233,7 +234,8 @@ fn show_hover(
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Some(InfoPopover {
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project: project.clone(),
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symbol_range: range,
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contents: hover_result.contents,
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blocks: hover_result.contents,
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rendered_content: None,
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})
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});
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@ -261,6 +263,225 @@ fn show_hover(
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editor.hover_state.info_task = Some(task);
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}
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fn render_blocks(
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theme_id: usize,
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blocks: &[HoverBlock],
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language_registry: &Arc<LanguageRegistry>,
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style: &EditorStyle,
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) -> RenderedInfo {
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let mut text = String::new();
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let mut highlights = Vec::new();
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let mut region_ranges = Vec::new();
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let mut regions = Vec::new();
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for block in blocks {
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match &block.kind {
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HoverBlockKind::PlainText => {
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new_paragraph(&mut text, &mut Vec::new());
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text.push_str(&block.text);
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}
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HoverBlockKind::Markdown => {
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use pulldown_cmark::{CodeBlockKind, Event, Options, Parser, Tag};
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let mut bold_depth = 0;
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let mut italic_depth = 0;
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let mut link_url = None;
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let mut current_language = None;
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let mut list_stack = Vec::new();
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for event in Parser::new_ext(&block.text, Options::all()) {
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let prev_len = text.len();
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match event {
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Event::Text(t) => {
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if let Some(language) = ¤t_language {
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render_code(
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&mut text,
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&mut highlights,
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t.as_ref(),
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language,
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style,
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);
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} else {
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text.push_str(t.as_ref());
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let mut style = HighlightStyle::default();
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if bold_depth > 0 {
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style.weight = Some(Weight::BOLD);
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}
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if italic_depth > 0 {
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style.italic = Some(true);
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}
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if let Some(link_url) = link_url.clone() {
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region_ranges.push(prev_len..text.len());
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regions.push(RenderedRegion {
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link_url: Some(link_url),
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code: false,
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});
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style.underline = Some(Underline {
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thickness: 1.0.into(),
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..Default::default()
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});
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}
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if style != HighlightStyle::default() {
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let mut new_highlight = true;
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if let Some((last_range, last_style)) = highlights.last_mut() {
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if last_range.end == prev_len && last_style == &style {
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last_range.end = text.len();
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new_highlight = false;
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}
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}
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if new_highlight {
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highlights.push((prev_len..text.len(), style));
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}
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}
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}
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}
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Event::Code(t) => {
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text.push_str(t.as_ref());
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region_ranges.push(prev_len..text.len());
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if link_url.is_some() {
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highlights.push((
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prev_len..text.len(),
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HighlightStyle {
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underline: Some(Underline {
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thickness: 1.0.into(),
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..Default::default()
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}),
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..Default::default()
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},
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));
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}
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regions.push(RenderedRegion {
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code: true,
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link_url: link_url.clone(),
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});
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}
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Event::Start(tag) => match tag {
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Tag::Paragraph => new_paragraph(&mut text, &mut list_stack),
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Tag::Heading(_, _, _) => {
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new_paragraph(&mut text, &mut list_stack);
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bold_depth += 1;
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}
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Tag::CodeBlock(kind) => {
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new_paragraph(&mut text, &mut list_stack);
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if let CodeBlockKind::Fenced(language) = kind {
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current_language = language_registry
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.language_for_name(language.as_ref())
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.now_or_never()
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.and_then(Result::ok);
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}
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}
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Tag::Emphasis => italic_depth += 1,
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Tag::Strong => bold_depth += 1,
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Tag::Link(_, url, _) => link_url = Some(url.to_string()),
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Tag::List(number) => {
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list_stack.push((number, false));
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}
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Tag::Item => {
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let len = list_stack.len();
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if let Some((list_number, has_content)) = list_stack.last_mut() {
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*has_content = false;
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if !text.is_empty() && !text.ends_with('\n') {
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text.push('\n');
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}
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for _ in 0..len - 1 {
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text.push_str(" ");
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}
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if let Some(number) = list_number {
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text.push_str(&format!("{}. ", number));
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*number += 1;
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*has_content = false;
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} else {
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text.push_str("- ");
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}
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}
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}
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_ => {}
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},
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Event::End(tag) => match tag {
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Tag::Heading(_, _, _) => bold_depth -= 1,
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Tag::CodeBlock(_) => current_language = None,
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Tag::Emphasis => italic_depth -= 1,
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Tag::Strong => bold_depth -= 1,
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Tag::Link(_, _, _) => link_url = None,
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Tag::List(_) => drop(list_stack.pop()),
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_ => {}
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},
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Event::HardBreak => text.push('\n'),
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Event::SoftBreak => text.push(' '),
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_ => {}
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}
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}
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}
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HoverBlockKind::Code { language } => {
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if let Some(language) = language_registry
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.language_for_name(language)
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.now_or_never()
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.and_then(Result::ok)
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{
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render_code(&mut text, &mut highlights, &block.text, &language, style);
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} else {
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text.push_str(&block.text);
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}
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}
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}
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}
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if !text.is_empty() && !text.ends_with('\n') {
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text.push('\n');
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}
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RenderedInfo {
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theme_id,
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text,
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highlights,
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region_ranges,
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regions,
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}
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}
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fn render_code(
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text: &mut String,
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highlights: &mut Vec<(Range<usize>, HighlightStyle)>,
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content: &str,
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language: &Arc<Language>,
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style: &EditorStyle,
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) {
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let prev_len = text.len();
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text.push_str(content);
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for (range, highlight_id) in language.highlight_text(&content.into(), 0..content.len()) {
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if let Some(style) = highlight_id.style(&style.syntax) {
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highlights.push((prev_len + range.start..prev_len + range.end, style));
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}
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}
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}
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fn new_paragraph(text: &mut String, list_stack: &mut Vec<(Option<u64>, bool)>) {
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let mut is_subsequent_paragraph_of_list = false;
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if let Some((_, has_content)) = list_stack.last_mut() {
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if *has_content {
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is_subsequent_paragraph_of_list = true;
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} else {
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*has_content = true;
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return;
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}
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}
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if !text.is_empty() {
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if !text.ends_with('\n') {
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text.push('\n');
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}
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text.push('\n');
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}
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for _ in 0..list_stack.len().saturating_sub(1) {
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text.push_str(" ");
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}
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if is_subsequent_paragraph_of_list {
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text.push_str(" ");
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}
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}
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#[derive(Default)]
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pub struct HoverState {
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pub info_popover: Option<InfoPopover>,
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@ -275,7 +496,7 @@ impl HoverState {
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}
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pub fn render(
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&self,
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&mut self,
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snapshot: &EditorSnapshot,
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style: &EditorStyle,
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visible_rows: Range<u32>,
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@ -304,7 +525,7 @@ impl HoverState {
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if let Some(diagnostic_popover) = self.diagnostic_popover.as_ref() {
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elements.push(diagnostic_popover.render(style, cx));
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}
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if let Some(info_popover) = self.info_popover.as_ref() {
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if let Some(info_popover) = self.info_popover.as_mut() {
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elements.push(info_popover.render(style, cx));
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}
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@ -316,44 +537,92 @@ impl HoverState {
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pub struct InfoPopover {
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pub project: ModelHandle<Project>,
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pub symbol_range: Range<Anchor>,
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pub contents: Vec<HoverBlock>,
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pub blocks: Vec<HoverBlock>,
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rendered_content: Option<RenderedInfo>,
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}
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#[derive(Debug, Clone)]
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struct RenderedInfo {
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theme_id: usize,
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text: String,
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highlights: Vec<(Range<usize>, HighlightStyle)>,
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region_ranges: Vec<Range<usize>>,
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regions: Vec<RenderedRegion>,
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}
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#[derive(Debug, Clone)]
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struct RenderedRegion {
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code: bool,
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link_url: Option<String>,
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}
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impl InfoPopover {
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pub fn render(&self, style: &EditorStyle, cx: &mut ViewContext<Editor>) -> AnyElement<Editor> {
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pub fn render(
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&mut self,
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style: &EditorStyle,
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cx: &mut ViewContext<Editor>,
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) -> AnyElement<Editor> {
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if let Some(rendered) = &self.rendered_content {
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if rendered.theme_id != style.theme_id {
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self.rendered_content = None;
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}
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}
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let rendered_content = self.rendered_content.get_or_insert_with(|| {
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render_blocks(
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style.theme_id,
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&self.blocks,
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self.project.read(cx).languages(),
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style,
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)
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});
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MouseEventHandler::<InfoPopover, _>::new(0, cx, |_, cx| {
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let mut flex = Flex::new(Axis::Vertical).scrollable::<HoverBlock>(1, None, cx);
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flex.extend(self.contents.iter().map(|content| {
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let languages = self.project.read(cx).languages();
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if let Some(language) = content.language.clone().and_then(|language| {
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languages.language_for_name(&language).now_or_never()?.ok()
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}) {
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let runs = language
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.highlight_text(&content.text.as_str().into(), 0..content.text.len());
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let mut region_id = 0;
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let view_id = cx.view_id();
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Text::new(content.text.clone(), style.text.clone())
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.with_soft_wrap(true)
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.with_highlights(
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runs.iter()
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.filter_map(|(range, id)| {
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id.style(style.theme.syntax.as_ref())
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.map(|style| (range.clone(), style))
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})
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.collect(),
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let code_span_background_color = style.document_highlight_read_background;
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let regions = rendered_content.regions.clone();
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Flex::column()
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.scrollable::<HoverBlock>(1, None, cx)
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.with_child(
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Text::new(rendered_content.text.clone(), style.text.clone())
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.with_highlights(rendered_content.highlights.clone())
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.with_custom_runs(
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rendered_content.region_ranges.clone(),
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move |ix, bounds, scene, _| {
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region_id += 1;
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let region = regions[ix].clone();
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if let Some(url) = region.link_url {
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scene.push_cursor_region(CursorRegion {
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bounds,
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style: CursorStyle::PointingHand,
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});
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scene.push_mouse_region(
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MouseRegion::new::<Self>(view_id, region_id, bounds)
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.on_click::<Editor, _>(
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MouseButton::Left,
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move |_, _, cx| {
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println!("clicked link {url}");
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cx.platform().open_url(&url);
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},
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),
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);
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}
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if region.code {
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scene.push_quad(gpui::Quad {
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bounds,
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background: Some(code_span_background_color),
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border: Default::default(),
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corner_radius: 2.0,
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});
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}
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},
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)
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.into_any()
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} else {
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let mut text_style = style.hover_popover.prose.clone();
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text_style.font_size = style.text.font_size;
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Text::new(content.text.clone(), text_style)
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.with_soft_wrap(true)
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.contained()
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.with_style(style.hover_popover.block_style)
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.into_any()
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}
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}));
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flex.contained().with_style(style.hover_popover.container)
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.with_soft_wrap(true),
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)
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.contained()
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.with_style(style.hover_popover.container)
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})
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.on_move(|_, _, _| {}) // Consume move events so they don't reach regions underneath.
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.with_cursor_style(CursorStyle::Arrow)
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|
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@ -437,16 +706,16 @@ impl DiagnosticPopover {
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::test::editor_lsp_test_context::EditorLspTestContext;
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use gpui::fonts::Weight;
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use indoc::indoc;
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use language::{Diagnostic, DiagnosticSet};
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use lsp::LanguageServerId;
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use project::HoverBlock;
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use project::{HoverBlock, HoverBlockKind};
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use smol::stream::StreamExt;
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use crate::test::editor_lsp_test_context::EditorLspTestContext;
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use super::*;
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use unindent::Unindent;
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use util::test::marked_text_ranges;
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#[gpui::test]
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async fn test_mouse_hover_info_popover(cx: &mut gpui::TestAppContext) {
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|
|
@ -487,10 +756,7 @@ mod tests {
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Ok(Some(lsp::Hover {
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contents: lsp::HoverContents::Markup(lsp::MarkupContent {
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kind: lsp::MarkupKind::Markdown,
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value: indoc! {"
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# Some basic docs
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Some test documentation"}
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.to_string(),
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value: "some basic docs".to_string(),
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}),
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range: Some(symbol_range),
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}))
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|
|
@ -502,17 +768,11 @@ mod tests {
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cx.editor(|editor, _| {
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assert!(editor.hover_state.visible());
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assert_eq!(
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editor.hover_state.info_popover.clone().unwrap().contents,
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vec![
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HoverBlock {
|
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text: "Some basic docs".to_string(),
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language: None
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},
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HoverBlock {
|
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text: "Some test documentation".to_string(),
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language: None
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}
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]
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editor.hover_state.info_popover.clone().unwrap().blocks,
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vec![HoverBlock {
|
||||
text: "some basic docs".to_string(),
|
||||
kind: HoverBlockKind::Markdown,
|
||||
},]
|
||||
)
|
||||
});
|
||||
|
||||
|
|
@ -563,10 +823,7 @@ mod tests {
|
|||
Ok(Some(lsp::Hover {
|
||||
contents: lsp::HoverContents::Markup(lsp::MarkupContent {
|
||||
kind: lsp::MarkupKind::Markdown,
|
||||
value: indoc! {"
|
||||
# Some other basic docs
|
||||
Some other test documentation"}
|
||||
.to_string(),
|
||||
value: "some other basic docs".to_string(),
|
||||
}),
|
||||
range: Some(symbol_range),
|
||||
}))
|
||||
|
|
@ -577,17 +834,11 @@ mod tests {
|
|||
cx.condition(|editor, _| editor.hover_state.visible()).await;
|
||||
cx.editor(|editor, _| {
|
||||
assert_eq!(
|
||||
editor.hover_state.info_popover.clone().unwrap().contents,
|
||||
vec![
|
||||
HoverBlock {
|
||||
text: "Some other basic docs".to_string(),
|
||||
language: None
|
||||
},
|
||||
HoverBlock {
|
||||
text: "Some other test documentation".to_string(),
|
||||
language: None
|
||||
}
|
||||
]
|
||||
editor.hover_state.info_popover.clone().unwrap().blocks,
|
||||
vec![HoverBlock {
|
||||
text: "some other basic docs".to_string(),
|
||||
kind: HoverBlockKind::Markdown,
|
||||
}]
|
||||
)
|
||||
});
|
||||
}
|
||||
|
|
@ -644,10 +895,7 @@ mod tests {
|
|||
Ok(Some(lsp::Hover {
|
||||
contents: lsp::HoverContents::Markup(lsp::MarkupContent {
|
||||
kind: lsp::MarkupKind::Markdown,
|
||||
value: indoc! {"
|
||||
# Some other basic docs
|
||||
Some other test documentation"}
|
||||
.to_string(),
|
||||
value: "some new docs".to_string(),
|
||||
}),
|
||||
range: Some(range),
|
||||
}))
|
||||
|
|
@ -660,4 +908,144 @@ mod tests {
|
|||
hover_state.diagnostic_popover.is_some() && hover_state.info_task.is_some()
|
||||
});
|
||||
}
|
||||
|
||||
#[gpui::test]
|
||||
fn test_render_blocks(cx: &mut gpui::TestAppContext) {
|
||||
Settings::test_async(cx);
|
||||
cx.add_window(|cx| {
|
||||
let editor = Editor::single_line(None, cx);
|
||||
let style = editor.style(cx);
|
||||
|
||||
struct Row {
|
||||
blocks: Vec<HoverBlock>,
|
||||
expected_marked_text: String,
|
||||
expected_styles: Vec<HighlightStyle>,
|
||||
}
|
||||
|
||||
let rows = &[
|
||||
// Strong emphasis
|
||||
Row {
|
||||
blocks: vec![HoverBlock {
|
||||
text: "one **two** three".to_string(),
|
||||
kind: HoverBlockKind::Markdown,
|
||||
}],
|
||||
expected_marked_text: "one «two» three\n".to_string(),
|
||||
expected_styles: vec![HighlightStyle {
|
||||
weight: Some(Weight::BOLD),
|
||||
..Default::default()
|
||||
}],
|
||||
},
|
||||
// Links
|
||||
Row {
|
||||
blocks: vec three".to_string(),
|
||||
kind: HoverBlockKind::Markdown,
|
||||
}],
|
||||
expected_marked_text: "one «two» three\n".to_string(),
|
||||
expected_styles: vec![HighlightStyle {
|
||||
underline: Some(Underline {
|
||||
thickness: 1.0.into(),
|
||||
..Default::default()
|
||||
}),
|
||||
..Default::default()
|
||||
}],
|
||||
},
|
||||
// Lists
|
||||
Row {
|
||||
blocks: vec
|
||||
- d
|
||||
"
|
||||
.unindent(),
|
||||
kind: HoverBlockKind::Markdown,
|
||||
}],
|
||||
expected_marked_text: "
|
||||
lists:
|
||||
- one
|
||||
- a
|
||||
- b
|
||||
- two
|
||||
- «c»
|
||||
- d
|
||||
"
|
||||
.unindent(),
|
||||
expected_styles: vec![HighlightStyle {
|
||||
underline: Some(Underline {
|
||||
thickness: 1.0.into(),
|
||||
..Default::default()
|
||||
}),
|
||||
..Default::default()
|
||||
}],
|
||||
},
|
||||
// Multi-paragraph list items
|
||||
Row {
|
||||
blocks: vec![HoverBlock {
|
||||
text: "
|
||||
* one two
|
||||
three
|
||||
|
||||
* four five
|
||||
* six seven
|
||||
eight
|
||||
|
||||
nine
|
||||
* ten
|
||||
* six
|
||||
"
|
||||
.unindent(),
|
||||
kind: HoverBlockKind::Markdown,
|
||||
}],
|
||||
expected_marked_text: "
|
||||
- one two three
|
||||
- four five
|
||||
- six seven eight
|
||||
|
||||
nine
|
||||
- ten
|
||||
- six
|
||||
"
|
||||
.unindent(),
|
||||
expected_styles: vec![HighlightStyle {
|
||||
underline: Some(Underline {
|
||||
thickness: 1.0.into(),
|
||||
..Default::default()
|
||||
}),
|
||||
..Default::default()
|
||||
}],
|
||||
},
|
||||
];
|
||||
|
||||
for Row {
|
||||
blocks,
|
||||
expected_marked_text,
|
||||
expected_styles,
|
||||
} in &rows[0..]
|
||||
{
|
||||
let rendered = render_blocks(0, &blocks, &Default::default(), &style);
|
||||
|
||||
let (expected_text, ranges) = marked_text_ranges(expected_marked_text, false);
|
||||
let expected_highlights = ranges
|
||||
.into_iter()
|
||||
.zip(expected_styles.iter().cloned())
|
||||
.collect::<Vec<_>>();
|
||||
assert_eq!(
|
||||
rendered.text,
|
||||
dbg!(expected_text),
|
||||
"wrong text for input {blocks:?}"
|
||||
);
|
||||
assert_eq!(
|
||||
rendered.highlights, expected_highlights,
|
||||
"wrong highlights for input {blocks:?}"
|
||||
);
|
||||
}
|
||||
|
||||
editor
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue