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@ -232,7 +232,10 @@
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'B , .': 'Pause',
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'F': 'Fullscreen',
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'ESC, O': 'Slide overview'
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};
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},
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// Holds custom key code mappings
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registeredKeyBindings = {};
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/**
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* Starts up the presentation if the client is capable.
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@ -1091,6 +1094,33 @@
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}
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/**
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* Add a custom key binding with optional description to be added to the help screen
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*/
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function addKeyBinding(binding, callback) {
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if (typeof binding === 'object' && binding.code) {
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registeredKeyBindings[binding.code] = {
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callback: callback,
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key: binding.key,
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description: binding.description
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}
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}
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else {
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registeredKeyBindings[binding] = {
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callback: callback,
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key: null,
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description: null
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}
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}
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}
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/**
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* Removes the specified custom key binding
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*/
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function removeKeyBinding(binding) {
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delete registeredKeyBindings[binding];
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}
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/**
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* Extend object a with the properties of object b.
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* If there's a conflict, object b takes precedence.
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@ -1518,6 +1548,13 @@
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html += '<tr><td>' + key + '</td><td>' + keyboardShortcuts[ key ] + '</td></tr>';
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}
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// add custom key bindings that have associated descriptions
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for( var binding in registeredKeyBindings ) {
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if (registeredKeyBindings[binding].key && registeredKeyBindings[binding].description) {
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html += '<tr><td>' + registeredKeyBindings[binding].key + '</td><td>' + registeredKeyBindings[binding].description + '</td></tr>';
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}
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}
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html += '</table>';
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dom.overlay.innerHTML = [
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@ -3967,7 +4004,31 @@
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}
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// 2. System defined key bindings
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// 2. Registered custom key bindings
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if( triggered === false ) {
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for( key in registeredKeyBindings ) {
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// Check if this binding matches the pressed key
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if( parseInt( key, 10 ) === event.keyCode ) {
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var value = registeredKeyBindings[ key ].callback;
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// Callback function
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if( typeof value === 'function' ) {
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value.apply( null, [ event ] );
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}
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// String shortcuts to reveal.js API
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else if( typeof value === 'string' && typeof Reveal[ value ] === 'function' ) {
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Reveal[ value ].call();
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}
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triggered = true;
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}
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}
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}
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// 3. System defined key bindings
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if( triggered === false ) {
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// Assume true and try to prove false
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@ -4676,6 +4737,12 @@
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}
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},
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// Adds a custom key binding
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addKeyBinding: addKeyBinding,
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// Removes a custom key binding
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removeKeyBinding: removeKeyBinding,
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// Programatically triggers a keyboard event
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triggerKey: function( keyCode ) {
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onDocumentKeyDown( { keyCode: keyCode } );
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