Git askpass (#25953)

Supersedes #25848

Release Notes:

- git: Supporting push/pull/fetch when remote requires auth

---------

Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>

crates/git_ui/src/askpass_modal.rs

@@ -0,0 +1,101 @@
+use editor::Editor;
+use futures::channel::oneshot;
+use gpui::{AppContext, DismissEvent, Entity, EventEmitter, Focusable, Styled};
+use ui::{
+    div, h_flex, v_flex, ActiveTheme, App, Context, DynamicSpacing, Headline, HeadlineSize, Icon,
+    IconName, IconSize, InteractiveElement, IntoElement, ParentElement, Render, SharedString,
+    StyledExt, StyledTypography, Window,
+};
+use workspace::ModalView;
+
+pub(crate) struct AskPassModal {
+    operation: SharedString,
+    prompt: SharedString,
+    editor: Entity<Editor>,
+    tx: Option<oneshot::Sender<String>>,
+}
+
+impl EventEmitter<DismissEvent> for AskPassModal {}
+impl ModalView for AskPassModal {}
+impl Focusable for AskPassModal {
+    fn focus_handle(&self, cx: &App) -> gpui::FocusHandle {
+        self.editor.focus_handle(cx)
+    }
+}
+
+impl AskPassModal {
+    pub fn new(
+        operation: SharedString,
+        prompt: SharedString,
+        tx: oneshot::Sender<String>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> Self {
+        let editor = cx.new(|cx| {
+            let mut editor = Editor::single_line(window, cx);
+            if prompt.contains("yes/no") {
+                editor.set_masked(false, cx);
+            } else {
+                editor.set_masked(true, cx);
+            }
+            editor
+        });
+        Self {
+            operation,
+            prompt,
+            editor,
+            tx: Some(tx),
+        }
+    }
+
+    fn cancel(&mut self, _: &menu::Cancel, _window: &mut Window, cx: &mut Context<Self>) {
+        cx.emit(DismissEvent);
+    }
+
+    fn confirm(&mut self, _: &menu::Confirm, _window: &mut Window, cx: &mut Context<Self>) {
+        if let Some(tx) = self.tx.take() {
+            tx.send(self.editor.read(cx).text(cx)).ok();
+        }
+        cx.emit(DismissEvent);
+    }
+}
+
+impl Render for AskPassModal {
+    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        v_flex()
+            .key_context("PasswordPrompt")
+            .on_action(cx.listener(Self::cancel))
+            .on_action(cx.listener(Self::confirm))
+            .elevation_2(cx)
+            .size_full()
+            .font_buffer(cx)
+            .child(
+                h_flex()
+                    .px(DynamicSpacing::Base12.rems(cx))
+                    .pt(DynamicSpacing::Base08.rems(cx))
+                    .pb(DynamicSpacing::Base04.rems(cx))
+                    .rounded_t_md()
+                    .w_full()
+                    .gap_1p5()
+                    .child(Icon::new(IconName::GitBranch).size(IconSize::XSmall))
+                    .child(h_flex().gap_1().overflow_x_hidden().child(
+                        div().max_w_96().overflow_x_hidden().text_ellipsis().child(
+                            Headline::new(self.operation.clone()).size(HeadlineSize::XSmall),
+                        ),
+                    )),
+            )
+            .child(
+                div()
+                    .text_buffer(cx)
+                    .py_2()
+                    .px_3()
+                    .bg(cx.theme().colors().editor_background)
+                    .border_t_1()
+                    .border_color(cx.theme().colors().border_variant)
+                    .size_full()
+                    .overflow_hidden()
+                    .child(self.prompt.clone())
+                    .child(self.editor.clone()),
+            )
+    }
+}