function noop() {} function assign(target) { var k, source, i = 1, len = arguments.length; for (; i < len; i++) { source = arguments[i]; for (k in source) target[k] = source[k]; } return target; } function appendNode(node, target) { target.appendChild(node); } function insertNode(node, target, anchor) { target.insertBefore(node, anchor); } function detachNode(node) { node.parentNode.removeChild(node); } function createElement(name) { return document.createElement(name); } function createText(data) { return document.createTextNode(data); } function blankObject() { return Object.create(null); } function destroy(detach) { this.destroy = noop; this.fire('destroy'); this.set = this.get = noop; if (detach !== false) this._fragment.u(); this._fragment.d(); this._fragment = this._state = null; } function differs(a, b) { return a !== b || ((a && typeof a === 'object') || typeof a === 'function'); } function dispatchObservers(component, group, changed, newState, oldState) { for (var key in group) { if (!changed[key]) continue; var newValue = newState[key]; var oldValue = oldState[key]; var callbacks = group[key]; if (!callbacks) continue; for (var i = 0; i < callbacks.length; i += 1) { var callback = callbacks[i]; if (callback.__calling) continue; callback.__calling = true; callback.call(component, newValue, oldValue); callback.__calling = false; } } } function fire(eventName, data) { var handlers = eventName in this._handlers && this._handlers[eventName].slice(); if (!handlers) return; for (var i = 0; i < handlers.length; i += 1) { handlers[i].call(this, data); } } function get(key) { return key ? this._state[key] : this._state; } function init(component, options) { component._observers = { pre: blankObject(), post: blankObject() }; component._handlers = blankObject(); component._root = options._root || component; component._bind = options._bind; component.options = options; component.store = component._root.options.store; } function observe(key, callback, options) { var group = options && options.defer ? this._observers.post : this._observers.pre; (group[key] || (group[key] = [])).push(callback); if (!options || options.init !== false) { callback.__calling = true; callback.call(this, this._state[key]); callback.__calling = false; } return { cancel: function() { var index = group[key].indexOf(callback); if (~index) group[key].splice(index, 1); } }; } function on(eventName, handler) { if (eventName === 'teardown') return this.on('destroy', handler); var handlers = this._handlers[eventName] || (this._handlers[eventName] = []); handlers.push(handler); return { cancel: function() { var index = handlers.indexOf(handler); if (~index) handlers.splice(index, 1); } }; } function set(newState) { this._set(assign({}, newState)); if (this._root._lock) return; this._root._lock = true; callAll(this._root._beforecreate); callAll(this._root._oncreate); callAll(this._root._aftercreate); this._root._lock = false; } function _set(newState) { var oldState = this._state, changed = {}, dirty = false; for (var key in newState) { if (differs(newState[key], oldState[key])) changed[key] = dirty = true; } if (!dirty) return; this._state = assign({}, oldState, newState); this._recompute(changed, this._state); if (this._bind) this._bind(changed, this._state); if (this._fragment) { dispatchObservers(this, this._observers.pre, changed, this._state, oldState); this._fragment.p(changed, this._state); dispatchObservers(this, this._observers.post, changed, this._state, oldState); } } function callAll(fns) { while (fns && fns.length) fns.pop()(); } function _mount(target, anchor) { this._fragment.m(target, anchor); } function _unmount() { this._fragment.u(); } var proto = { destroy: destroy, get: get, fire: fire, observe: observe, on: on, set: set, teardown: destroy, _recompute: noop, _set: _set, _mount: _mount, _unmount: _unmount }; /* generated by Svelte vX.Y.Z */ function create_main_fragment(state, component) { var window_updating = false, p, text, text_1; function onwindowscroll(event) { window_updating = true; component.set({ y: this.scrollY }); window_updating = false; } window.addEventListener("scroll", onwindowscroll); component.observe("y", function(y) { if (window_updating) return; window.scrollTo(window.scrollX, y); }); return { c: function create() { p = createElement("p"); text = createText("scrolled to "); text_1 = createText(state.y); }, m: function mount(target, anchor) { insertNode(p, target, anchor); appendNode(text, p); appendNode(text_1, p); }, p: function update(changed, state) { if (changed.y) { text_1.data = state.y; } }, u: function unmount() { detachNode(p); }, d: function destroy$$1() { window.removeEventListener("scroll", onwindowscroll); } }; } function SvelteComponent(options) { init(this, options); this._state = assign({}, options.data); this._state.y = window.scrollY; this._fragment = create_main_fragment(this._state, this); if (options.target) { this._fragment.c(); this._fragment.m(options.target, options.anchor || null); } } assign(SvelteComponent.prototype, proto); export default SvelteComponent;