88 lines
2.2 KiB
Plaintext
88 lines
2.2 KiB
Plaintext
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var pullDown = {
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threshold: 95,
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maxHeight: 200,
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callRefresh: 'onrefresh',
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callPullingDown: 'onpullingdown',
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refreshSelector: '.uni-refresh'
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};
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function ready(newValue, oldValue, ownerInstance, instance) {
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var state = instance.getState()
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state.canPullDown = newValue;
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// console.log(newValue);
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}
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function touchStart(e, instance) {
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var state = instance.getState();
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state.refreshInstance = instance.selectComponent(pullDown.refreshSelector);
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state.canPullDown = (state.refreshInstance != null && state.refreshInstance != undefined);
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if (!state.canPullDown) {
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return
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}
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// console.log("touchStart");
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state.height = 0;
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state.touchStartY = e.touches[0].pageY || e.changedTouches[0].pageY;
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state.refreshInstance.setStyle({
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'height': 0
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});
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state.refreshInstance.callMethod("onchange", true);
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}
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function touchMove(e, ownerInstance) {
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var instance = e.instance;
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var state = instance.getState();
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if (!state.canPullDown) {
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return
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}
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var oldHeight = state.height;
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var endY = e.touches[0].pageY || e.changedTouches[0].pageY;
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var height = endY - state.touchStartY;
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if (height > pullDown.maxHeight) {
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return;
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}
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var refreshInstance = state.refreshInstance;
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refreshInstance.setStyle({
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'height': height + 'px'
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});
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height = height < pullDown.maxHeight ? height : pullDown.maxHeight;
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state.height = height;
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refreshInstance.callMethod(pullDown.callPullingDown, {
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height: height
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});
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}
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function touchEnd(e, ownerInstance) {
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var state = e.instance.getState();
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if (!state.canPullDown) {
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return
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}
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state.refreshInstance.callMethod("onchange", false);
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var refreshInstance = state.refreshInstance;
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if (state.height > pullDown.threshold) {
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refreshInstance.callMethod(pullDown.callRefresh);
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return;
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}
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refreshInstance.setStyle({
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'height': 0
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});
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}
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function propObserver(newValue, oldValue, instance) {
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pullDown = newValue;
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}
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module.exports = {
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touchmove: touchMove,
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touchstart: touchStart,
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touchend: touchEnd,
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propObserver: propObserver
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}
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