Clear selections when navigating Back and Forward

1 files changed, 27 insertions, 0 deletions

diff --git a/test/pdf.zig b/test/pdf.zig
index 7a05447e..beeb0b40 100644
--- a/test/pdf.zig
+++ b/test/pdf.zig
@@ -2055,3 +2055,30 @@ test "Esc back into a PDF keeps the offset within its page" {
     // snap, so a test that watched the offset alone would not see it coming.
     try std.testing.expect(!pv.scroll_to_page_pending);
 }
+
+test "PDF Back and Forward clear selections and land on recorded pages" {
+    if (!pdf_enabled or platform == .web) return error.SkipZigTest;
+    const p = try Pardes.init(std.testing.allocator, .{ .file = "docs/design.pdf", .cols = 80, .rows = 28 });
+    defer p.deinit();
+    p.native_images = true;
+    p.presentation.enabled = false;
+    const pane = p.panes[0].?;
+    const state = &pane.pdf.?;
+    try std.testing.expect(state.page_count > 1);
+    try std.testing.expect(state.focusLocation(p.pdf_gpa, 2, 0));
+    p.njumps = 2;
+    p.jcur = 1;
+    p.jumps[0] = .{ .pane = 0, .serial = pane.serial, .line = 1, .col = 0 };
+    p.jumps[1] = .{ .pane = 0, .serial = pane.serial, .line = 2, .col = 0 };
+    for ([_]u21{ 'o', 'i' }, 0..) |key, destination| {
+        try std.testing.expectEqual(panes.Pdf.SelectionUpdate.changed, state.setSelection(p.pdf_gpa, .{ .x = 0, .y = 0 }, .{ .x = 1, .y = 1 }, true));
+        try std.testing.expect(state.selection != null and state.selection_text.len > 0);
+        p.update(.{ .key = .{ .cp = key, .ctrl = true } });
+        try std.testing.expectEqual(destination, p.jcur);
+        try std.testing.expectEqual(destination, state.page);
+        try std.testing.expect(state.selection == null);
+        try std.testing.expect(state.selection_page == null);
+        try std.testing.expectEqual(@as(usize, 0), state.selection_text.len);
+        try std.testing.expect(state.drag_anchor == null and state.drag_head == null);
+    }
+}