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Navigation source code coverage in HTML report #16

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Merged
merged 2 commits into from
Feb 13, 2022
Merged

Navigation source code coverage in HTML report #16

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0604e47
Source code coverage navigation
Feb 10, 2022
5ba3fa2
Merge branch 'master' of https://github.com/DelphiCodeCoverage/Delphi…
Feb 10, 2022
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53 changes: 52 additions & 1 deletion Source/HTMLCoverageReport.pas
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Original file line number Diff line number Diff line change
Expand Up @@ -367,7 +367,13 @@ procedure THTMLCoverageReport.AddPreAmble(const AOutFile: TTextWriter);
AOutFile.WriteLine('table.sum tr th {text-align:left; border: 1px solid #888}');
AOutFile.WriteLine('table.sum tr td {text-align:right;}');
AOutFile.WriteLine('table.sum tr td:first-child {text-align:left;}');
AOutFile.WriteLine(EndTag('style'));

AOutFile.WriteLine('#nav {position: fixed; margin-left: -3.5em; overflow: visible;}');
AOutFile.WriteLine('#nav div {opacity: .3; user-select: none; pointer-events: none;}');
AOutFile.WriteLine('#nav div.active {opacity: 1; cursor: pointer; pointer-events: initial;}');
AOutFile.WriteLine('#nav div.active:hover {color: #00A;}');

AOutFile.WriteLine(EndTag('style'));
end;
AOutFile.WriteLine(EndTag('head'));
AOutFile.WriteLine(StartTag('body'));
Expand Down Expand Up @@ -560,6 +566,8 @@ procedure THTMLCoverageReport.GenerateCoverageTable(
LineCoverageIter := 0;
LineCount := 1;

AOutputFile.WriteLine('<div id="nav"><div id="nav-prev">&#x25b2; Prev</div><div id="nav-next">&#x25bc; Next</div></div>');

AOutputFile.WriteLine(StartTag('table', SourceClass));
while AInputFile.Peek <> -1 do
begin
Expand All @@ -581,6 +589,49 @@ procedure THTMLCoverageReport.GenerateCoverageTable(
Inc(LineCount);
end;
AOutputFile.WriteLine(EndTag('table'));

AOutputFile.WriteLine(
'<script>(function () {'#10 +
'var starts = [],' +
'prev = document.getElementById("nav-prev"),' +
'next = document.getElementById("nav-next");'#10 +
'(function () {'#10 +
'var p;'#10 +
'document.querySelectorAll("table.s tr").forEach(r => {'#10 +
'if (r.classList.contains("notcovered")) {'#10 +
'if (!p) starts.push(r);'#10 +
'p = r;'#10 +
'} else { p = null }'#10 +
'})'#10 +
'})();'#10 +
'function findPrev() {'#10 +
'var y = prev.getBoundingClientRect().top - 4;'#10 +
'for (var i=starts.length-1; i>=0; i--) {'#10 +
'if (starts[i].getBoundingClientRect().top < y) return starts[i]'#10 +
'}'#10 +
'}'#10 +
'function findNext() {'#10 +
'var y = next.getBoundingClientRect().top + 4;'#10 +
'for (var i=0; i<starts.length; i++) {'#10 +
'if (starts[i].getBoundingClientRect().top > y) return starts[i];'#10 +
'}'#10 +
'}'#10 +
'function onScroll() {'#10 +
'prev.setAttribute("class", findPrev() ? "active" : "");'#10 +
'next.setAttribute("class", findNext() ? "active" : "");'#10 +
'onScroll.pending = 0;'#10 +
'}'#10 +
'document.addEventListener("scroll", function() {'#10 +
'if (!onScroll.pending) { onScroll.pending = requestAnimationFrame(onScroll) }'#10 +
'});'#10 +
'onScroll();'#10 +
'function scrollTo(row) {'#10 +
'if (row) window.scrollTo({ behavior: "smooth", top: window.scrollY+row.getBoundingClientRect().top-prev.getBoundingClientRect().top });'#10 +
'}'#10 +
'next.addEventListener("click", () => scrollTo(findNext()) );'#10 +
'prev.addEventListener("click", () => scrollTo(findPrev()) );'#10 +
'})();</script>'
);
end;

end.
Expand Down