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Ensure _applyIcon is not called multiple times. Fixes #120 #121
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merlinnot
reviewed
Feb 1, 2018
| this.listen(window, 'iron-iconset-added', '_updateIcon'); | ||
| // Since _updateIcon can be called multiple times, make sure we | ||
| // avoid cloning the SVG if the icon & theme haven't changed | ||
| if (this._iconName !== this._lastIconName || |
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Can we introduce two constants right above for these inequality comparisons to increase readability? I’d suggest iconNameChanged and themeChanged
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Fixes #120
Adds a dirty check on
iconandthemein_updateIconso that it avoids expensive work (cloning the SVG) if we've done it once for thisicon/themecombination.No test changes since it only affects performance, not correctness.