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-rw-r--r--present/plugin/zoom/plugin.js264
-rw-r--r--present/plugin/zoom/zoom.esm.js11
-rw-r--r--present/plugin/zoom/zoom.js11
3 files changed, 286 insertions, 0 deletions
diff --git a/present/plugin/zoom/plugin.js b/present/plugin/zoom/plugin.js
new file mode 100644
index 0000000..960fb81
--- /dev/null
+++ b/present/plugin/zoom/plugin.js
@@ -0,0 +1,264 @@
+/*!
+ * reveal.js Zoom plugin
+ */
+const Plugin = {
+
+ id: 'zoom',
+
+ init: function( reveal ) {
+
+ reveal.getRevealElement().addEventListener( 'mousedown', function( event ) {
+ var defaultModifier = /Linux/.test( window.navigator.platform ) ? 'ctrl' : 'alt';
+
+ var modifier = ( reveal.getConfig().zoomKey ? reveal.getConfig().zoomKey : defaultModifier ) + 'Key';
+ var zoomLevel = ( reveal.getConfig().zoomLevel ? reveal.getConfig().zoomLevel : 2 );
+
+ if( event[ modifier ] && !reveal.isOverview() ) {
+ event.preventDefault();
+
+ zoom.to({
+ x: event.clientX,
+ y: event.clientY,
+ scale: zoomLevel,
+ pan: false
+ });
+ }
+ } );
+
+ },
+
+ destroy: () => {
+
+ zoom.reset();
+
+ }
+
+};
+
+export default () => Plugin;
+
+/*!
+ * zoom.js 0.3 (modified for use with reveal.js)
+ * http://lab.hakim.se/zoom-js
+ * MIT licensed
+ *
+ * Copyright (C) 2011-2014 Hakim El Hattab, http://hakim.se
+ */
+var zoom = (function(){
+
+ // The current zoom level (scale)
+ var level = 1;
+
+ // The current mouse position, used for panning
+ var mouseX = 0,
+ mouseY = 0;
+
+ // Timeout before pan is activated
+ var panEngageTimeout = -1,
+ panUpdateInterval = -1;
+
+ // Check for transform support so that we can fallback otherwise
+ var supportsTransforms = 'transform' in document.body.style;
+
+ if( supportsTransforms ) {
+ // The easing that will be applied when we zoom in/out
+ document.body.style.transition = 'transform 0.8s ease';
+ }
+
+ // Zoom out if the user hits escape
+ document.addEventListener( 'keyup', function( event ) {
+ if( level !== 1 && event.keyCode === 27 ) {
+ zoom.out();
+ }
+ } );
+
+ // Monitor mouse movement for panning
+ document.addEventListener( 'mousemove', function( event ) {
+ if( level !== 1 ) {
+ mouseX = event.clientX;
+ mouseY = event.clientY;
+ }
+ } );
+
+ /**
+ * Applies the CSS required to zoom in, prefers the use of CSS3
+ * transforms but falls back on zoom for IE.
+ *
+ * @param {Object} rect
+ * @param {Number} scale
+ */
+ function magnify( rect, scale ) {
+
+ var scrollOffset = getScrollOffset();
+
+ // Ensure a width/height is set
+ rect.width = rect.width || 1;
+ rect.height = rect.height || 1;
+
+ // Center the rect within the zoomed viewport
+ rect.x -= ( window.innerWidth - ( rect.width * scale ) ) / 2;
+ rect.y -= ( window.innerHeight - ( rect.height * scale ) ) / 2;
+
+ if( supportsTransforms ) {
+ // Reset
+ if( scale === 1 ) {
+ document.body.style.transform = '';
+ }
+ // Scale
+ else {
+ var origin = scrollOffset.x +'px '+ scrollOffset.y +'px',
+ transform = 'translate('+ -rect.x +'px,'+ -rect.y +'px) scale('+ scale +')';
+
+ document.body.style.transformOrigin = origin;
+ document.body.style.transform = transform;
+ }
+ }
+ else {
+ // Reset
+ if( scale === 1 ) {
+ document.body.style.position = '';
+ document.body.style.left = '';
+ document.body.style.top = '';
+ document.body.style.width = '';
+ document.body.style.height = '';
+ document.body.style.zoom = '';
+ }
+ // Scale
+ else {
+ document.body.style.position = 'relative';
+ document.body.style.left = ( - ( scrollOffset.x + rect.x ) / scale ) + 'px';
+ document.body.style.top = ( - ( scrollOffset.y + rect.y ) / scale ) + 'px';
+ document.body.style.width = ( scale * 100 ) + '%';
+ document.body.style.height = ( scale * 100 ) + '%';
+ document.body.style.zoom = scale;
+ }
+ }
+
+ level = scale;
+
+ if( document.documentElement.classList ) {
+ if( level !== 1 ) {
+ document.documentElement.classList.add( 'zoomed' );
+ }
+ else {
+ document.documentElement.classList.remove( 'zoomed' );
+ }
+ }
+ }
+
+ /**
+ * Pan the document when the mosue cursor approaches the edges
+ * of the window.
+ */
+ function pan() {
+ var range = 0.12,
+ rangeX = window.innerWidth * range,
+ rangeY = window.innerHeight * range,
+ scrollOffset = getScrollOffset();
+
+ // Up
+ if( mouseY < rangeY ) {
+ window.scroll( scrollOffset.x, scrollOffset.y - ( 1 - ( mouseY / rangeY ) ) * ( 14 / level ) );
+ }
+ // Down
+ else if( mouseY > window.innerHeight - rangeY ) {
+ window.scroll( scrollOffset.x, scrollOffset.y + ( 1 - ( window.innerHeight - mouseY ) / rangeY ) * ( 14 / level ) );
+ }
+
+ // Left
+ if( mouseX < rangeX ) {
+ window.scroll( scrollOffset.x - ( 1 - ( mouseX / rangeX ) ) * ( 14 / level ), scrollOffset.y );
+ }
+ // Right
+ else if( mouseX > window.innerWidth - rangeX ) {
+ window.scroll( scrollOffset.x + ( 1 - ( window.innerWidth - mouseX ) / rangeX ) * ( 14 / level ), scrollOffset.y );
+ }
+ }
+
+ function getScrollOffset() {
+ return {
+ x: window.scrollX !== undefined ? window.scrollX : window.pageXOffset,
+ y: window.scrollY !== undefined ? window.scrollY : window.pageYOffset
+ }
+ }
+
+ return {
+ /**
+ * Zooms in on either a rectangle or HTML element.
+ *
+ * @param {Object} options
+ * - element: HTML element to zoom in on
+ * OR
+ * - x/y: coordinates in non-transformed space to zoom in on
+ * - width/height: the portion of the screen to zoom in on
+ * - scale: can be used instead of width/height to explicitly set scale
+ */
+ to: function( options ) {
+
+ // Due to an implementation limitation we can't zoom in
+ // to another element without zooming out first
+ if( level !== 1 ) {
+ zoom.out();
+ }
+ else {
+ options.x = options.x || 0;
+ options.y = options.y || 0;
+
+ // If an element is set, that takes precedence
+ if( !!options.element ) {
+ // Space around the zoomed in element to leave on screen
+ var padding = 20;
+ var bounds = options.element.getBoundingClientRect();
+
+ options.x = bounds.left - padding;
+ options.y = bounds.top - padding;
+ options.width = bounds.width + ( padding * 2 );
+ options.height = bounds.height + ( padding * 2 );
+ }
+
+ // If width/height values are set, calculate scale from those values
+ if( options.width !== undefined && options.height !== undefined ) {
+ options.scale = Math.max( Math.min( window.innerWidth / options.width, window.innerHeight / options.height ), 1 );
+ }
+
+ if( options.scale > 1 ) {
+ options.x *= options.scale;
+ options.y *= options.scale;
+
+ magnify( options, options.scale );
+
+ if( options.pan !== false ) {
+
+ // Wait with engaging panning as it may conflict with the
+ // zoom transition
+ panEngageTimeout = setTimeout( function() {
+ panUpdateInterval = setInterval( pan, 1000 / 60 );
+ }, 800 );
+
+ }
+ }
+ }
+ },
+
+ /**
+ * Resets the document zoom state to its default.
+ */
+ out: function() {
+ clearTimeout( panEngageTimeout );
+ clearInterval( panUpdateInterval );
+
+ magnify( { x: 0, y: 0 }, 1 );
+
+ level = 1;
+ },
+
+ // Alias
+ magnify: function( options ) { this.to( options ) },
+ reset: function() { this.out() },
+
+ zoomLevel: function() {
+ return level;
+ }
+ }
+
+})();
diff --git a/present/plugin/zoom/zoom.esm.js b/present/plugin/zoom/zoom.esm.js
new file mode 100644
index 0000000..3b66c57
--- /dev/null
+++ b/present/plugin/zoom/zoom.esm.js
@@ -0,0 +1,11 @@
+/*!
+ * reveal.js Zoom plugin
+ */
+const e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(o){var n=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:n)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;o[i]&&!e.isOverview()&&(o.preventDefault(),t.to({x:o.clientX,y:o.clientY,scale:d,pan:!1}))}))},destroy:()=>{t.reset()}};var t=function(){var e=1,o=0,n=0,i=-1,d=-1,l="transform"in document.body.style;function s(t,o){var n=r();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*o)/2,t.y-=(window.innerHeight-t.height*o)/2,l)if(1===o)document.body.style.transform="";else{var i=n.x+"px "+n.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+o+")";document.body.style.transformOrigin=i,document.body.style.transform=d}else 1===o?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(n.x+t.x)/o+"px",document.body.style.top=-(n.y+t.y)/o+"px",document.body.style.width=100*o+"%",document.body.style.height=100*o+"%",document.body.style.zoom=o);e=o,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function c(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=r();n<i?window.scroll(d.x,d.y-14/e*(1-n/i)):n>window.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-n)/i)*(14/e)),o<t?window.scroll(d.x-14/e*(1-o/t),d.y):o>window.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-o)/t)*(14/e),d.y)}function r(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return l&&(document.body.style.transition="transform 0.8s ease"),document.addEventListener("keyup",(function(o){1!==e&&27===o.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(o=t.clientX,n=t.clientY)})),{to:function(o){if(1!==e)t.out();else{if(o.x=o.x||0,o.y=o.y||0,o.element){var n=o.element.getBoundingClientRect();o.x=n.left-20,o.y=n.top-20,o.width=n.width+40,o.height=n.height+40}void 0!==o.width&&void 0!==o.height&&(o.scale=Math.max(Math.min(window.innerWidth/o.width,window.innerHeight/o.height),1)),o.scale>1&&(o.x*=o.scale,o.y*=o.scale,s(o,o.scale),!1!==o.pan&&(i=setTimeout((function(){d=setInterval(c,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),s({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();
+/*!
+ * zoom.js 0.3 (modified for use with reveal.js)
+ * http://lab.hakim.se/zoom-js
+ * MIT licensed
+ *
+ * Copyright (C) 2011-2014 Hakim El Hattab, http://hakim.se
+ */export default()=>e;
diff --git a/present/plugin/zoom/zoom.js b/present/plugin/zoom/zoom.js
new file mode 100644
index 0000000..7ac2127
--- /dev/null
+++ b/present/plugin/zoom/zoom.js
@@ -0,0 +1,11 @@
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).RevealZoom=t()}(this,(function(){"use strict";
+/*!
+ * reveal.js Zoom plugin
+ */const e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(o){var n=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:n)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;o[i]&&!e.isOverview()&&(o.preventDefault(),t.to({x:o.clientX,y:o.clientY,scale:d,pan:!1}))}))},destroy:()=>{t.reset()}};var t=function(){var e=1,o=0,n=0,i=-1,d=-1,l="transform"in document.body.style;function s(t,o){var n=r();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*o)/2,t.y-=(window.innerHeight-t.height*o)/2,l)if(1===o)document.body.style.transform="";else{var i=n.x+"px "+n.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+o+")";document.body.style.transformOrigin=i,document.body.style.transform=d}else 1===o?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(n.x+t.x)/o+"px",document.body.style.top=-(n.y+t.y)/o+"px",document.body.style.width=100*o+"%",document.body.style.height=100*o+"%",document.body.style.zoom=o);e=o,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function c(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=r();n<i?window.scroll(d.x,d.y-14/e*(1-n/i)):n>window.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-n)/i)*(14/e)),o<t?window.scroll(d.x-14/e*(1-o/t),d.y):o>window.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-o)/t)*(14/e),d.y)}function r(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return l&&(document.body.style.transition="transform 0.8s ease"),document.addEventListener("keyup",(function(o){1!==e&&27===o.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(o=t.clientX,n=t.clientY)})),{to:function(o){if(1!==e)t.out();else{if(o.x=o.x||0,o.y=o.y||0,o.element){var n=o.element.getBoundingClientRect();o.x=n.left-20,o.y=n.top-20,o.width=n.width+40,o.height=n.height+40}void 0!==o.width&&void 0!==o.height&&(o.scale=Math.max(Math.min(window.innerWidth/o.width,window.innerHeight/o.height),1)),o.scale>1&&(o.x*=o.scale,o.y*=o.scale,s(o,o.scale),!1!==o.pan&&(i=setTimeout((function(){d=setInterval(c,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),s({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();
+/*!
+ * zoom.js 0.3 (modified for use with reveal.js)
+ * http://lab.hakim.se/zoom-js
+ * MIT licensed
+ *
+ * Copyright (C) 2011-2014 Hakim El Hattab, http://hakim.se
+ */return()=>e}));
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 15:47:04 +0000