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feat(mtext): segmented Edit/Preview toggle, default to preview

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The editor opens in preview by default and switches body views with a
segmented Edit | Preview control placed between the toolbar and the body
(active tab highlighted). All toolbar properties feed the rendered preview.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-05-31 01:59:39 +03:00
commit a07af32714
4 changed files with 38 additions and 11 deletions
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38
src/app/view.rs
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@ -1550,11 +1550,6 @@ fn mtext_editor_overlay<'a>(
button(lbl("1")).on_press(Message::MTextLineSpacing(1.0)).padding(3).style(btn_style),
button(lbl("1.5")).on_press(Message::MTextLineSpacing(1.5)).padding(3).style(btn_style),
button(lbl("2")).on_press(Message::MTextLineSpacing(2.0)).padding(3).style(btn_style),
iced::widget::Space::new().width(6),
button(lbl(if ed.show_preview { "Code" } else { "Preview" }))
.on_press(Message::MTextTogglePreview)
.padding(3)
.style(btn_style),
iced::widget::Space::new().width(Fill),
icon_btn(include_bytes!("../../assets/icons/mt_ok.svg"), Message::MTextOk),
icon_btn(include_bytes!("../../assets/icons/mt_cancel.svg"), Message::MTextCancel),
@ -1562,6 +1557,37 @@ fn mtext_editor_overlay<'a>(
.spacing(4)
.align_y(iced::Alignment::Center);
// ── Segmented Edit | Preview toggle (between toolbar and body) ────────
let seg_btn = move |label: &'static str, active: bool, on: Message| -> Element<'static, Message> {
button(text(label).size(12).color(if active {
Color::WHITE
} else {
Color { r: 0.80, g: 0.80, b: 0.80, a: 1.0 }
}))
.on_press(on)
.padding([4, 14])
.style(move |_: &Theme, _| button::Style {
background: Some(Background::Color(if active {
Color { r: 0.20, g: 0.42, b: 0.72, a: 1.0 }
} else {
Color { r: 0.20, g: 0.20, b: 0.20, a: 1.0 }
})),
text_color: TEXT_COL,
border: Border { color: BORDER, width: 1.0, radius: 4.0.into() },
shadow: iced::Shadow::default(),
snap: false,
})
.into()
};
let toggle = container(
row![
seg_btn("Edit", !ed.show_preview, Message::MTextShowPreview(false)),
seg_btn("Preview", ed.show_preview, Message::MTextShowPreview(true)),
]
.spacing(0),
)
.padding([6, 0]);
// ── Body: toggles between raw code input and rendered preview ────────
const VIEW_H: f32 = 150.0;
let body: Element<'a, Message> = if ed.show_preview {
@ -1604,7 +1630,7 @@ fn mtext_editor_overlay<'a>(
.into()
};
let panel = container(column![row1, row2, body].spacing(5))
let panel = container(column![row1, row2, toggle, body].spacing(5))
.style(move |_: &Theme| container::Style {
background: Some(Background::Color(PANEL_BG)),
border: Border { color: BORDER, width: 1.0, radius: 5.0.into() },