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Increase zoom level for miniwob #346

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Increase zoom level for miniwob #346

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Increase zoom level for miniwob
amanjaiswal73892 Jun 3, 2025
cbd2ba3
Refactor zoom implementation to use CSS transform scale for better co…
amanjaiswal73892 Jun 4, 2025
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11 changes: 10 additions & 1 deletion browsergym/miniwob/src/browsergym/miniwob/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,16 @@ def setup(self, page: playwright.sync_api.Page) -> tuple[str, dict]:

# navigate to the task's url
self.page.goto(self.url)

# Apply zoom using CSS transform scale instead of document.documentElement.style.zoom
# This avoids coordinate system mismatches with getBoundingClientRect() in whoCapturesCenterClick()
self.page.evaluate(
"""
document.body.style.transform = 'scale(1.5)';
document.body.style.transformOrigin = 'top left';
document.body.style.width = '66.67%';
document.body.style.height = '66.67%';
"""
)
# remove human display if requested (goal, time left, last reward etc.)
if self.remove_human_display:
self.page.evaluate( # if error : core is not defined, make sure you started the miniwob http server at the right place miniwob-plusplus/miniwob/html
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