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Don't call iterate DOM several times in handlers

This commit is contained in:
Anton Ryzhov 2013-11-08 13:55:09 +04:00
parent 5a4fe7dbf9
commit 79f121259f
1 changed files with 10 additions and 6 deletions
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16
shower.js
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@ -42,7 +42,7 @@ window.shower = window.shower || (function(window, document, undefined) {
}, },
isLast : function() { isLast : function() {
return shower.slideList.length === this.number + 1 return shower.slideList.length === this.number + 1;
}, },
/** /**
@ -889,11 +889,13 @@ window.shower = window.shower || (function(window, document, undefined) {
shower.init(); shower.init();
document.addEventListener('click', function(e) { document.addEventListener('click', function(e) {
var slideNumber = shower.getSlideNumber(shower._getSlideIdByEl(e.target)), var slideId = shower._getSlideIdByEl(e.target),
slideNumber,
slide; slide;
// Click on slide in List mode // Click on slide in List mode
if (shower.isListMode() && shower._getSlideIdByEl(e.target)) { if (slideId && shower.isListMode()) {
slideNumber = shower.getSlideNumber(slideId);
// Warning: go must be before enterSlideMode. // Warning: go must be before enterSlideMode.
// Otherwise there is a bug in Chrome // Otherwise there is a bug in Chrome
shower.go(slideNumber); shower.go(slideNumber);
@ -908,11 +910,12 @@ window.shower = window.shower || (function(window, document, undefined) {
}, false); }, false);
document.addEventListener('touchstart', function(e) { document.addEventListener('touchstart', function(e) {
var slideNumber = shower.getSlideNumber(shower._getSlideIdByEl(e.target)), var slideId = shower._getSlideIdByEl(e.target),
slideNumber,
slide, slide,
x; x;
if (shower._getSlideIdByEl(e.target)) { if (slideId) {
if (shower.isSlideMode() && ! shower._checkInteractiveElement(e)) { if (shower.isSlideMode() && ! shower._checkInteractiveElement(e)) {
x = e.touches[0].pageX; x = e.touches[0].pageX;
@ -924,9 +927,10 @@ window.shower = window.shower || (function(window, document, undefined) {
} }
if (shower.isListMode()) { if (shower.isListMode()) {
slideNumber = shower.getSlideNumber(slideId);
// Warning: go must be before enterSlideMode. // Warning: go must be before enterSlideMode.
// Otherwise there is a bug in Chrome // Otherwise there is a bug in Chrome
shower.go(shower.getSlideNumber(shower._getSlideIdByEl(e.target))); shower.go(slideNumber);
shower.enterSlideMode(); shower.enterSlideMode();
shower.showPresenterNotes(slideNumber); shower.showPresenterNotes(slideNumber);