syntax + pdf_pane + file_pane: prose grammars paint, pdf Esc cancels, gj/gk walk wrapped rows

1 files changed, 62 insertions, 0 deletions

diff --git a/src/pdf_pane_integration_test.zig b/src/pdf_pane_integration_test.zig
index b290616e..2e671f49 100644
--- a/src/pdf_pane_integration_test.zig
+++ b/src/pdf_pane_integration_test.zig
@@ -906,6 +906,68 @@ test "PDF normal adapter consumes unsupported actions and navigates page fallbac
     try std.testing.expect(!pane.tag_edit);
 }
 
+test "Escape cancels PDF chrome in place and Shift-Escape leaves the pane" {
+    if (!pdf_enabled or platform == .web) return;
+
+    const gpa = std.testing.allocator;
+    const p = try Pardes.init(gpa, .{
+        .file = "docs/design.pdf",
+        .cols = 80,
+        .rows = 28,
+    });
+    defer p.deinit();
+    const pane = p.panes[0].?;
+    const pv = &pane.pdf.?;
+    p.native_images = true;
+
+    // A second pane, then focus it and come back: `Last` has somewhere to go
+    // and the PDF is where the keys land.
+    pdf_pane.openSections(p, 0);
+    p.update(.{ .key = .{ .cp = 'w', .ctrl = true } });
+    p.update(.{ .key = .{ .cp = 'j' } });
+    try std.testing.expectEqual(@as(usize, 1), p.active);
+    p.update(.{ .key = .{ .cp = 'w', .ctrl = true } });
+    p.update(.{ .key = .{ .cp = 'k' } });
+    try std.testing.expectEqual(@as(usize, 0), p.active);
+
+    // Everything a reader can see over the page: a search overlay and a live
+    // word selection.
+    try pv.setSearchQuery(p.pdf_gpa, "Pardes");
+    var found = try pv.document.search(gpa, pv.page, "Pardes");
+    defer found.deinit(gpa);
+    try std.testing.expect(found.quads.len > 0);
+    const quad = found.quads[0].quad;
+    try std.testing.expectEqual(
+        pdf_pane.SelectionUpdate.changed,
+        pv.setSelection(p.pdf_gpa, quad.ul, quad.lr, false),
+    );
+    p.update(.{ .key = .{ .cp = '3' } });
+    const page_before = pv.page;
+    const scroll_before = pv.document_scroll_y;
+
+    // Escape drops the overlay and the selection, keeps the reading position,
+    // and does NOT hand the keyboard to another pane.
+    p.update(.{ .key = .{ .cp = Key.escape } });
+    try std.testing.expectEqual(@as(usize, 0), p.active);
+    try std.testing.expect(pv.selection == null and pv.selection_text.len == 0);
+    try std.testing.expectEqual(@as(usize, 0), pv.search_query.len);
+    try std.testing.expect(pv.search_results == null);
+    try std.testing.expect(!pv.highlights_dirty and !pv.search_reveal_pending);
+    try std.testing.expectEqual(page_before, pv.page);
+    try std.testing.expectEqual(scroll_before, pv.document_scroll_y);
+    try std.testing.expectEqual(@as(u32, 0), pane.count);
+    try std.testing.expectEqual(@as(u21, 0), pane.pending);
+    // A second Escape on a bare document is inert rather than an exit.
+    p.update(.{ .key = .{ .cp = Key.escape } });
+    try std.testing.expectEqual(@as(usize, 0), p.active);
+
+    // Shift-Escape is the way out, and it leaves the document as it found it.
+    p.update(.{ .key = .{ .cp = Key.escape, .shift = true } });
+    try std.testing.expectEqual(@as(usize, 1), p.active);
+    try std.testing.expectEqual(page_before, pv.page);
+    try std.testing.expectEqual(scroll_before, pv.document_scroll_y);
+}
+
 test "PDF continuous strip renders every intersecting short page" {
     if (!pdf_enabled or platform == .web) return;