58 lines
1.2 KiB
JavaScript
58 lines
1.2 KiB
JavaScript
var mode;
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var modes;
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var mouseEvents = ['onClick', 'onMousedown', 'onMouseup', 'onMouseenter'];
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var currentMode = 'play';
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return {
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init: init,
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dispatch: dispatch,
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set: set,
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setEnabled: setEnabled
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}
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function init(chosenModes, elementId) {
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mode = document.getElementById(elementId || 'mode');
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mode.addEventListener('change', onChange);
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modes = chosenModes;
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}
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function setEnabled(enabled, targets) {
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if(!Array.isArray(targets)) {
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targets = [targets];
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}
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for(var i = 0; i < mode.options.length; i++) {
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var option = mode.options[i];
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if(targets.indexOf(option.value) >= 0) {
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option.disabled = !enabled;
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}
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}
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}
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function runEvent(eventName) {
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var handler = modes[currentMode].events[eventName];
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if(typeof handler == 'function') {
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handler.apply(null, Array.prototype.slice.call(arguments, 1));
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}
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}
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function onChange() {
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runEvent('onLeave');
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currentMode = mode.value;
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runEvent('onEnter');
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}
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function set(newMode) {
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if(modes[newMode]) {
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mode.value = newMode;
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onChange();
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}
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}
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function dispatch(row, column) {
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var handler = {};
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mouseEvents.forEach(function(eventName) {
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handler[eventName] = function(e) {runEvent(eventName, e, row, column);};
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});
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return handler;
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}
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