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Bug 967098 - Set displayport heuristics based on Gaia settings. r=vingtetun

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This commit is contained in:
Kartikaya Gupta 2014-02-03 18:58:08 -05:00
parent d28a4f86fa
commit ab8cf86c47
1 changed files with 27 additions and 0 deletions
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27
b2g/chrome/content/settings.js
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@ -676,6 +676,33 @@ SettingsListener.observe('apz.force-enable', false, function(value) {
Services.prefs.setBoolPref('dom.browser_frames.useAsyncPanZoom', value);
});
SettingsListener.observe('apz.displayport.heuristics', 'default', function(value) {
// first reset everything to default
Services.prefs.setCharPref('apz.velocity_bias', '1.0');
Services.prefs.setBoolPref('apz.use_paint_duration', true);
Services.prefs.setCharPref('apz.x_skate_size_multiplier', '1.5');
Services.prefs.setCharPref('apz.y_skate_size_multiplier', '2.5');
// and then set the things that we want to change
switch (value) {
case 'default':
break;
case 'center-displayport':
Services.prefs.setCharPref('apz.velocity_bias', '0.0');
break;
case 'perfect-paint-times':
Services.prefs.setBoolPref('apz.use_paint_duration', false);
Services.prefs.setCharPref('apz.velocity_bias', '0.32'); // 16/50 (assumes 16ms paint times instead of 50ms)
break;
case 'taller-displayport':
Services.prefs.setCharPref('apz.y_skate_size_multiplier', '3.5');
break;
case 'faster-paint':
Services.prefs.setCharPref('apz.x_skate_size_multiplier', '1.0');
Services.prefs.setCharPref('apz.y_skate_size_multiplier', '1.5');
break;
}
});
SettingsListener.observe('layers.enable-tiles', false, function(value) {
Services.prefs.setBoolPref('layers.enable-tiles', value);
});