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terminal: address todo to re-resolve 905

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This commit is contained in:
Mitchell Hashimoto
2024-03-25 11:20:28 -07:00
parent efa18d6971
commit fe43462eb3
1 changed files with 33 additions and 29 deletions
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62
src/terminal/Terminal.zig
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@ -1890,35 +1890,39 @@ pub fn eraseDisplay(
// at a prompt scrolls the screen contents prior to clearing.
// Most shells send `ESC [ H ESC [ 2 J` so we can't just check
// our current cursor position. See #905
// if (self.active_screen == .primary) at_prompt: {
// // Go from the bottom of the viewport up and see if we're
// // at a prompt.
// const viewport_max = Screen.RowIndexTag.viewport.maxLen(&self.screen);
// for (0..viewport_max) |y| {
// const bottom_y = viewport_max - y - 1;
// const row = self.screen.getRow(.{ .viewport = bottom_y });
// if (row.isEmpty()) continue;
// switch (row.getSemanticPrompt()) {
// // If we're at a prompt or input area, then we are at a prompt.
// .prompt,
// .prompt_continuation,
// .input,
// => break,
//
// // If we have command output, then we're most certainly not
// // at a prompt.
// .command => break :at_prompt,
//
// // If we don't know, we keep searching.
// .unknown => {},
// }
// } else break :at_prompt;
//
// self.screen.scroll(.{ .clear = {} }) catch {
// // If we fail, we just fall back to doing a normal clear
// // so we don't worry about the error.
// };
// }
if (self.active_screen == .primary) at_prompt: {
// Go from the bottom of the active up and see if we're
// at a prompt.
const active_br = self.screen.pages.getBottomRight(
.active,
) orelse break :at_prompt;
var it = active_br.rowIterator(
.left_up,
self.screen.pages.getTopLeft(.active),
);
while (it.next()) |p| {
const row = p.rowAndCell().row;
switch (row.semantic_prompt) {
// If we're at a prompt or input area, then we are at a prompt.
.prompt,
.prompt_continuation,
.input,
=> break,
// If we have command output, then we're most certainly not
// at a prompt.
.command => break :at_prompt,
// If we don't know, we keep searching.
.unknown => {},
}
} else break :at_prompt;
self.screen.scrollClear() catch {
// If we fail, we just fall back to doing a normal clear
// so we don't worry about the error.
};
}
// All active area
self.screen.clearRows(