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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Implement viewport-width-based fast-click heuristic"
href="https://bugs.webkit.org/show_bug.cgi?id=150604">150604</a>
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<th>Summary</th>
<td>Implement viewport-width-based fast-click heuristic
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>iOS
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>WebKit Misc.
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>wenson_hsieh@apple.com
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<pre>Remove the experimental scroll/zoom-based heuristics for fast-clicking and replace it with a heuristic based on viewport width and current zoom scale. If the viewport width is equal to the device width and the user has not zoomed yet (i.e. at initial scale) then fire fast clicks instead of double taps. In all other cases, perform the old behavior. To make this optimization useful for width = device-width websites with scalable viewports, we also make double-tap-to-zoom-out change the viewport scale to be the initial scale rather than the min scale.</pre>
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