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[Fixed Position] Cache name/value

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Cache name/value for telemetry elements to avoid flashing
after drag gestures, WTD-881.
This commit is contained in:
Victor Woeltjen 2015-02-24 09:25:14 -08:00
parent 59ff539bfb
commit 3d86871c1d
1 changed files with 9 additions and 2 deletions
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11
platform/features/layout/src/FixedController.js
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@ -24,6 +24,8 @@ define(
subscription, subscription,
cellStyles = [], cellStyles = [],
elementProxies = [], elementProxies = [],
names = {}, // Cache names by ID
values = {}, // Cache values by ID
elementProxiesById = {}, elementProxiesById = {},
selection; selection;
@ -67,10 +69,12 @@ define(
var id = telemetryObject && telemetryObject.getId(); var id = telemetryObject && telemetryObject.getId();
if (id) { if (id) {
(elementProxiesById[id] || []).forEach(function (element) { (elementProxiesById[id] || []).forEach(function (element) {
element.name = telemetryObject.getModel().name; names[id] = telemetryObject.getModel().name;
element.value = telemetryFormatter.formatRangeValue( values[id] = telemetryFormatter.formatRangeValue(
subscription.getRangeValue(telemetryObject) subscription.getRangeValue(telemetryObject)
); );
element.name = names[id];
element.value = values[id];
}); });
} }
} }
@ -127,6 +131,9 @@ define(
elementProxies.forEach(function (elementProxy) { elementProxies.forEach(function (elementProxy) {
var id = elementProxy.id; var id = elementProxy.id;
if (elementProxy.element.type === 'fixed.telemetry') { if (elementProxy.element.type === 'fixed.telemetry') {
// Provide it a cached name/value to avoid flashing
elementProxy.name = names[id];
elementProxy.value = values[id];
elementProxiesById[id] = elementProxiesById[id] || []; elementProxiesById[id] = elementProxiesById[id] || [];
elementProxiesById[id].push(elementProxy); elementProxiesById[id].push(elementProxy);
} }