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terminal: eraseDisplay protected

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This commit is contained in:
Mitchell Hashimoto
2023-09-25 11:15:24 -07:00
parent f1c771615f
commit 35f89bd28c
2 changed files with 92 additions and 12 deletions
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100
src/terminal/Terminal.zig
View File

@ -213,7 +213,7 @@ pub fn alternateScreen(
self.screen.selection = null;
if (options.clear_on_enter) {
self.eraseDisplay(alloc, .complete);
self.eraseDisplay(alloc, .complete, false);
}
}
@ -232,7 +232,7 @@ pub fn primaryScreen(
// TODO(mitchellh): what happens if we enter alternate screen multiple times?
if (self.active_screen == .primary) return;
if (options.clear_on_exit) self.eraseDisplay(alloc, .complete);
if (options.clear_on_exit) self.eraseDisplay(alloc, .complete, false);
// Switch the screens
const old = self.screen;
@ -279,7 +279,7 @@ pub fn deccolm(self: *Terminal, alloc: Allocator, mode: DeccolmMode) !void {
try self.resize(alloc, 0, self.rows);
// TODO: do not clear screen flag mode
self.eraseDisplay(alloc, .complete);
self.eraseDisplay(alloc, .complete, false);
self.setCursorPos(1, 1);
// TODO: left/right margins
@ -1010,6 +1010,7 @@ pub fn eraseDisplay(
self: *Terminal,
alloc: Allocator,
mode: csi.EraseDisplay,
protected: bool,
) void {
const tracy = trace(@src());
defer tracy.end();
@ -1026,7 +1027,18 @@ pub fn eraseDisplay(
while (it.next()) |row| {
row.setWrapped(false);
row.setDirty(true);
row.clear(pen);
if (!protected) {
row.clear(pen);
continue;
}
// Protected mode erase
for (0..row.lenCells()) |x| {
const cell = row.getCellPtr(x);
if (cell.attrs.protected) continue;
cell.* = pen;
}
}
// Unsets pending wrap state
@ -1045,6 +1057,7 @@ pub fn eraseDisplay(
for (self.screen.cursor.x..self.cols) |x| {
if (row.header().flags.grapheme) row.clearGraphemes(x);
const cell = row.getCellPtr(x);
if (protected and cell.attrs.protected) continue;
cell.* = pen;
cell.char = 0;
}
@ -1058,6 +1071,7 @@ pub fn eraseDisplay(
for (0..self.cols) |x| {
if (row.header().flags.grapheme) row.clearGraphemes(x);
const cell = row.getCellPtr(x);
if (protected and cell.attrs.protected) continue;
cell.* = pen;
cell.char = 0;
}
@ -1072,6 +1086,7 @@ pub fn eraseDisplay(
var x: usize = 0;
while (x <= self.screen.cursor.x) : (x += 1) {
const cell = self.screen.getCellPtr(.active, self.screen.cursor.y, x);
if (protected and cell.attrs.protected) continue;
cell.* = pen;
cell.char = 0;
}
@ -1082,6 +1097,7 @@ pub fn eraseDisplay(
x = 0;
while (x < self.cols) : (x += 1) {
const cell = self.screen.getCellPtr(.active, y, x);
if (protected and cell.attrs.protected) continue;
cell.* = pen;
cell.char = 0;
}
@ -1121,7 +1137,7 @@ test "Terminal: eraseDisplay above" {
t.screen.cursor.y = 40;
t.screen.cursor.x = 40;
// erase above the cursor
t.eraseDisplay(testing.allocator, .above);
t.eraseDisplay(testing.allocator, .above, false);
// check it was erased
cell = t.screen.getCell(.active, 0, 0);
try testing.expect(cell.bg.eql(pink));
@ -1158,7 +1174,7 @@ test "Terminal: eraseDisplay below" {
try testing.expect(cell.char == 'a');
try testing.expect(cell.attrs.bold);
// erase below the cursor
t.eraseDisplay(testing.allocator, .below);
t.eraseDisplay(testing.allocator, .below, false);
// check it was erased
cell = t.screen.getCell(.active, 60, 60);
try testing.expect(cell.bg.eql(pink));
@ -1202,7 +1218,7 @@ test "Terminal: eraseDisplay complete" {
// position our cursor between the cells
t.screen.cursor.y = 30;
// erase everything
t.eraseDisplay(testing.allocator, .complete);
t.eraseDisplay(testing.allocator, .complete, false);
// check they were erased
cell = t.screen.getCell(.active, 60, 60);
try testing.expect(cell.bg.eql(pink));
@ -1781,8 +1797,8 @@ pub fn fullReset(self: *Terminal, alloc: Allocator) void {
self.screen.kitty_keyboard = .{};
self.scrolling_region = .{ .top = 0, .bottom = self.rows - 1 };
self.previous_char = null;
self.eraseDisplay(alloc, .scrollback);
self.eraseDisplay(alloc, .complete);
self.eraseDisplay(alloc, .scrollback, false);
self.eraseDisplay(alloc, .complete, false);
self.pwd.clearRetainingCapacity();
}
@ -3066,3 +3082,69 @@ test "Terminal: eraseLine protected complete" {
try testing.expectEqualStrings(" X", str);
}
}
test "Terminal: eraseDisplay protected complete" {
const alloc = testing.allocator;
var t = try init(alloc, 10, 5);
defer t.deinit(alloc);
try t.print('A');
t.carriageReturn();
try t.linefeed();
for ("123456789") |c| try t.print(c);
t.setCursorColAbsolute(6);
t.setProtectedMode(.dec);
try t.print('X');
t.setCursorColAbsolute(4);
t.eraseDisplay(alloc, .complete, true);
{
var str = try t.plainString(testing.allocator);
defer testing.allocator.free(str);
try testing.expectEqualStrings("\n X", str);
}
}
test "Terminal: eraseDisplay protected below" {
const alloc = testing.allocator;
var t = try init(alloc, 10, 5);
defer t.deinit(alloc);
try t.print('A');
t.carriageReturn();
try t.linefeed();
for ("123456789") |c| try t.print(c);
t.setCursorColAbsolute(6);
t.setProtectedMode(.dec);
try t.print('X');
t.setCursorColAbsolute(4);
t.eraseDisplay(alloc, .below, true);
{
var str = try t.plainString(testing.allocator);
defer testing.allocator.free(str);
try testing.expectEqualStrings("A\n123 X", str);
}
}
test "Terminal: eraseDisplay protected above" {
const alloc = testing.allocator;
var t = try init(alloc, 10, 5);
defer t.deinit(alloc);
try t.print('A');
t.carriageReturn();
try t.linefeed();
for ("123456789") |c| try t.print(c);
t.setCursorColAbsolute(6);
t.setProtectedMode(.dec);
try t.print('X');
t.setCursorColAbsolute(8);
t.eraseDisplay(alloc, .above, true);
{
var str = try t.plainString(testing.allocator);
defer testing.allocator.free(str);
try testing.expectEqualStrings("\n X 9", str);
}
}

4
src/termio/Exec.zig
View File

@ -1305,15 +1305,13 @@ const StreamHandler = struct {
}
pub fn eraseDisplay(self: *StreamHandler, mode: terminal.EraseDisplay, protected: bool) !void {
_ = protected;
if (mode == .complete) {
// Whenever we erase the full display, scroll to bottom.
try self.terminal.scrollViewport(.{ .bottom = {} });
try self.queueRender();
}
self.terminal.eraseDisplay(self.alloc, mode);
self.terminal.eraseDisplay(self.alloc, mode, protected);
}
pub fn eraseLine(self: *StreamHandler, mode: terminal.EraseLine, protected: bool) !void {