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[TextLayer] Only cache the current textDiv style when enhanceTextSelection is enabled

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This will help save a little bit of memory, by not storing one unused string for each `textDiv` in regular text-selection mode.
This commit is contained in:
Jonas Jenwald 2019-08-19 11:02:56 +02:00
parent 852fc955bd
commit 45dfad8640
1 changed files with 7 additions and 4 deletions
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11
src/display/text_layer.js
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@ -90,8 +90,7 @@ var renderTextLayer = (function renderTextLayerClosure() {
fontAscent = (1 + style.descent) * fontAscent; fontAscent = (1 + style.descent) * fontAscent;
} }
var left; let left, top;
var top;
if (angle === 0) { if (angle === 0) {
left = tx[4]; left = tx[4];
top = tx[5] - fontAscent; top = tx[5] - fontAscent;
@ -103,8 +102,12 @@ var renderTextLayer = (function renderTextLayerClosure() {
styleBuf[3] = top; styleBuf[3] = top;
styleBuf[5] = fontHeight; styleBuf[5] = fontHeight;
styleBuf[7] = style.fontFamily; styleBuf[7] = style.fontFamily;
textDivProperties.style = styleBuf.join(''); const styleStr = styleBuf.join('');
textDiv.setAttribute('style', textDivProperties.style);
if (task._enhanceTextSelection) {
textDivProperties.style = styleStr;
}
textDiv.setAttribute('style', styleStr);
textDiv.textContent = geom.str; textDiv.textContent = geom.str;
// `fontName` is only used by the FontInspector, and we only use `dataset` // `fontName` is only used by the FontInspector, and we only use `dataset`