disable zoom plugin while in overview mode

edit
Hakim El Hattab 2013-02-03 13:21:42 -05:00
parent c21e6bbfed
commit 080fb3cd33
1 changed files with 26 additions and 21 deletions

View File

@ -1,29 +1,34 @@
// Custom reveal.js integration // Custom reveal.js integration
(function(){ (function(){
document.querySelector( '.reveal' ).addEventListener( 'click', function( event ) { var isEnabled = true;
if( event.altKey ) {
document.querySelector( '.reveal' ).addEventListener( 'mousedown', function( event ) {
if( event.altKey && isEnabled ) {
event.preventDefault(); event.preventDefault();
zoom.to({ element: event.target, pan: false }); zoom.to({ element: event.target, pan: false });
} }
} ); } );
Reveal.addEventListener( 'overviewshown', function() { isEnabled = false; } );
Reveal.addEventListener( 'overviewhidden', function() { isEnabled = true; } );
})(); })();
/*! /*!
* zoom.js 0.2 (modified version for use with reveal.js) * zoom.js 0.2 (modified version for use with reveal.js)
* http://lab.hakim.se/zoom-js * http://lab.hakim.se/zoom-js
* MIT licensed * MIT licensed
* *
* Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
*/ */
var zoom = (function(){ var zoom = (function(){
// The current zoom level (scale) // The current zoom level (scale)
var level = 1; var level = 1;
// The current mouse position, used for panning // The current mouse position, used for panning
var mouseX = 0, var mouseX = 0,
mouseY = 0; mouseY = 0;
// Timeout before pan is activated // Timeout before pan is activated
var panEngageTimeout = -1, var panEngageTimeout = -1,
panUpdateInterval = -1; panUpdateInterval = -1;
@ -36,7 +41,7 @@ var zoom = (function(){
'msTransform' in document.body.style || 'msTransform' in document.body.style ||
'OTransform' in document.body.style || 'OTransform' in document.body.style ||
'transform' in document.body.style; 'transform' in document.body.style;
if( supportsTransforms ) { if( supportsTransforms ) {
// The easing that will be applied when we zoom in/out // The easing that will be applied when we zoom in/out
document.body.style.transition = 'transform 0.8s ease'; document.body.style.transition = 'transform 0.8s ease';
@ -45,7 +50,7 @@ var zoom = (function(){
document.body.style.MozTransition = '-moz-transform 0.8s ease'; document.body.style.MozTransition = '-moz-transform 0.8s ease';
document.body.style.WebkitTransition = '-webkit-transform 0.8s ease'; document.body.style.WebkitTransition = '-webkit-transform 0.8s ease';
} }
// Zoom out if the user hits escape // Zoom out if the user hits escape
document.addEventListener( 'keyup', function( event ) { document.addEventListener( 'keyup', function( event ) {
if( level !== 1 && event.keyCode === 27 ) { if( level !== 1 && event.keyCode === 27 ) {
@ -62,21 +67,21 @@ var zoom = (function(){
}, false ); }, false );
/** /**
* Applies the CSS required to zoom in, prioritizes use of CSS3 * Applies the CSS required to zoom in, prioritizes use of CSS3
* transforms but falls back on zoom for IE. * transforms but falls back on zoom for IE.
* *
* @param {Number} pageOffsetX * @param {Number} pageOffsetX
* @param {Number} pageOffsetY * @param {Number} pageOffsetY
* @param {Number} elementOffsetX * @param {Number} elementOffsetX
* @param {Number} elementOffsetY * @param {Number} elementOffsetY
* @param {Number} scale * @param {Number} scale
*/ */
function magnify( pageOffsetX, pageOffsetY, elementOffsetX, elementOffsetY, scale ) { function magnify( pageOffsetX, pageOffsetY, elementOffsetX, elementOffsetY, scale ) {
if( supportsTransforms ) { if( supportsTransforms ) {
var origin = pageOffsetX +'px '+ pageOffsetY +'px', var origin = pageOffsetX +'px '+ pageOffsetY +'px',
transform = 'translate('+ -elementOffsetX +'px,'+ -elementOffsetY +'px) scale('+ scale +')'; transform = 'translate('+ -elementOffsetX +'px,'+ -elementOffsetY +'px) scale('+ scale +')';
document.body.style.transformOrigin = origin; document.body.style.transformOrigin = origin;
document.body.style.OTransformOrigin = origin; document.body.style.OTransformOrigin = origin;
document.body.style.msTransformOrigin = origin; document.body.style.msTransformOrigin = origin;
@ -121,7 +126,7 @@ var zoom = (function(){
} }
/** /**
* Pan the document when the mosue cursor approaches the edges * Pan the document when the mosue cursor approaches the edges
* of the window. * of the window.
*/ */
function pan() { function pan() {
@ -129,7 +134,7 @@ var zoom = (function(){
rangeX = window.innerWidth * range, rangeX = window.innerWidth * range,
rangeY = window.innerHeight * range, rangeY = window.innerHeight * range,
scrollOffset = getScrollOffset(); scrollOffset = getScrollOffset();
// Up // Up
if( mouseY < rangeY ) { if( mouseY < rangeY ) {
window.scroll( scrollOffset.x, scrollOffset.y - ( 1 - ( mouseY / rangeY ) ) * ( 14 / level ) ); window.scroll( scrollOffset.x, scrollOffset.y - ( 1 - ( mouseY / rangeY ) ) * ( 14 / level ) );
@ -159,7 +164,7 @@ var zoom = (function(){
return { return {
/** /**
* Zooms in on either a rectangle or HTML element. * Zooms in on either a rectangle or HTML element.
* *
* @param {Object} options * @param {Object} options
* - element: HTML element to zoom in on * - element: HTML element to zoom in on
* OR * OR
@ -232,7 +237,7 @@ var zoom = (function(){
if( currentOptions && currentOptions.element ) { if( currentOptions && currentOptions.element ) {
scrollOffset.x -= ( window.innerWidth - ( currentOptions.width * currentOptions.scale ) ) / 2; scrollOffset.x -= ( window.innerWidth - ( currentOptions.width * currentOptions.scale ) ) / 2;
} }
magnify( scrollOffset.x, scrollOffset.y, 0, 0, 1 ); magnify( scrollOffset.x, scrollOffset.y, 0, 0, 1 );
level = 1; level = 1;
@ -241,11 +246,11 @@ var zoom = (function(){
// Alias // Alias
magnify: function( options ) { this.to( options ) }, magnify: function( options ) { this.to( options ) },
reset: function() { this.out() }, reset: function() { this.out() },
zoomLevel: function() { zoomLevel: function() {
return level; return level;
} }
} }
})(); })();