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Alexandre Teixeira
40dbe17a95
Resolve the overlap with #19 by preserving the whole-cascade stylesheet helpers alongside #31's document-source/module-set helpers. Maintainer validation: - document/module contract and composition guards: 15 passed - all 54 touched Python test modules: 366 passed - py_compile: clean - git diff --check: clean
51 lines
2.4 KiB
Python
51 lines
2.4 KiB
Python
"""Regression guards for the Documents editor scrolling UI.
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Issues #1501 and #1496 both come from the same surface: the document editor
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hid its real textarea scrollbar, and the line-number gutter tried to scroll an
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overflow-hidden element. Long wrapped lines add another wrinkle: the textarea
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can have more visual rows than logical newline rows, so the gutter rows must
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match the textarea's measured row heights. Keep these as static checks because
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document.js is browser-coupled and not importable in pytest.
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"""
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from pathlib import Path
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from tests.helpers.stylesheets import app_css
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from tests.helpers.document_source import document_source
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ROOT = Path(__file__).resolve().parents[1]
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DOC_JS = document_source()
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STYLE_CSS = app_css()
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def test_document_textarea_scrollbar_is_visible():
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textarea_rule_start = STYLE_CSS.index(".doc-editor-textarea {\n position: absolute;")
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textarea_rule_end = STYLE_CSS.index(".doc-editor-textarea::placeholder", textarea_rule_start)
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textarea_css = STYLE_CSS[textarea_rule_start:textarea_rule_end]
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assert "overflow-y: scroll;" in textarea_css
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assert "scrollbar-width: thin;" in textarea_css
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assert ".doc-editor-textarea::-webkit-scrollbar { width: 8px; }" in STYLE_CSS
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assert ".doc-editor-textarea::-webkit-scrollbar { display: none; }" not in STYLE_CSS
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def test_line_number_gutter_translates_inner_content():
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assert "function _lineNumberContentEl(gutter)" in DOC_JS
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assert "inner.className = 'doc-line-number-content';" in DOC_JS
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assert ".style.transform = `translateY(${-textarea.scrollTop}px)`;" in DOC_JS
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assert "gutter.scrollTop = textarea.scrollTop;" not in DOC_JS
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assert ".doc-line-number-content" in STYLE_CSS
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def test_line_number_gutter_accounts_for_wrapped_rows():
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assert "function _measureLineNumberHeights(textarea, lines, textWidth, style)" in DOC_JS
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assert "probe = document.createElement('textarea');" in DOC_JS
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assert "probe.wrap = 'soft';" in DOC_JS
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assert "probe.value = line || ' ';" in DOC_JS
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assert "Math.round(probe.scrollHeight / lineHeight)" in DOC_JS
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assert "row.style.height = `${heights[i]}px`;" in DOC_JS
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assert "label.className = 'doc-line-number-label';" in DOC_JS
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assert "inner.textContent = lines;" not in DOC_JS
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assert ".doc-line-number-row" in STYLE_CSS
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assert ".doc-line-number-label" in STYLE_CSS
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assert ".doc-line-number-measure" in STYLE_CSS
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