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datepicker.js
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datepicker.js
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(function(factory, $) {
$.fn.DatePicker = function(opts) {
if (!opts) opts = {};
opts.container = this;
return factory($, opts);
}
})(function($, opts) {
var TIME_ZONE_OFFSET = new Date().getTimezoneOffset()*60*1000;
var MIN_TIME = -62135712000000 + 480 * 60 * 1000 + TIME_ZONE_OFFSET;
var MAX_TIME = 750736656000000 + 480 * 60 * 1000 + TIME_ZONE_OFFSET;
var MIN_YEAR = 1;
var MAX_YEAR = 25759;
var CONTINUOUS_SCROLLING_STEP = 5;
var TRANSITION_FRAMES_COUNT = 18;
var BEGIN_CONTINUOUS_SCROLLING_DELAY = 320;
var ROW_HEIGHT = 20;
var MAX_OFFSET = Math.floor((MAX_TIME - MIN_TIME)/(7*24*3600000))*ROW_HEIGHT;
var DAY_CELL_WIDTH = 34;
var SCROLL_CONTAINER_WIDTH = 238;
var CANVAS_HEIGHT = 140;
var COLOR_OUTSIDE_DAY = '#bfbfbf';
var COLOR_DAY = '#000000';
var COLOR_DAY_CELL_BORDER = '#bfbfbf';
var COLOR_DAY_CELL_BACKGROUND = 'rgb(229,236,248)';
var COLOR_SELECTED_DAY_CELL_BACKGROUND = '#becde9';
var YEAR_ROW_HEIGHT = 25;
var YEAR_VIEW_SCROLL_CONTAINER_WIDTH = 223;
var YEAR_VIEW_SCROLL_CONTAINER_HEIGHT = 120;
var MONTH_GRID_HEIGHT = 96;
var MONTH_CELL_WIDTH = 56;
var MONTH_CELL_HEIGHT = 32;
var THUMB_HEIGHT = 30;
var MAX_SCROLL_STEP = 6;
var COLOR_YEAR_VIEW_BACKGROUND = '#f5f5f5';
var COLOR_YEAR_BORDER_BOTTOM = '#bfbfbf';
var COLOR_MONTH_CELL_BACKGROUND = 'rgb(229,236,248)';
var PIXEL_RATIO = (function () {
var ctx = document.createElement("canvas").getContext("2d"),
dpr = window.devicePixelRatio || 1,
bsr = ctx.webkitBackingStorePixelRatio ||
ctx.mozBackingStorePixelRatio ||
ctx.msBackingStorePixelRatio ||
ctx.oBackingStorePixelRatio ||
ctx.backingStorePixelRatio || 1;
return dpr / bsr;
})();
var today;
var selectedDay;
var $domContainer;
var $domDateLabel;
var $domDateLabelText;
var $domMain;
var $domMainBody;
var $domScrollContainer;
var $domMonthView;
var $domYearView;
var $domMask;
var $domThumb;
var $domInput;
var $domInputYear;
var $domInputMonth;
var $domInputDay;
var $domInputButtonGroup;
var $domInputSpinUp;
var $domInputSpinDown;
var $domInputIndicator;
var $domInputClear;
var $canvasMonthViewBackground;
var $canvasMonthViewForeground;
var contextMonthViewBackground;
var contextMonthViewForeground;
var $canvasYearViewBackground;
var $canvasYearViewForeground;
var contextYearViewBackground;
var contextYearViewForeground;
var $canvasOffScreen;
var contextOffScreen;
// Animation
var render = null;
var updateState = null;
var afterAnimation = null;
function runScrollAnimation() {
updateState();
render();
if (isAnimating) {
window.requestAnimationFrame(runScrollAnimation);
} else {
afterAnimation();
}
}
// Scroll animation
// states
var isWaitingForStop = false;
var isAnimating = false;
var totalFrames = null;
var currentOffset = 0;
var currentTime;
var inRowOffset = 0;
var stopOffset = 0;
var currentMonth = null;
var scrollDirection = null;
//region Month view animation
// Scroll to a calculated offset
function scrollToOffset() {
var step = (stopOffset - currentOffset) / totalFrames;
currentOffset += Math.round(step);
currentTime = getTimeFromOffset(currentOffset);
inRowOffset = currentOffset - getOffset(currentTime);
totalFrames--;
if (totalFrames === 0) {
stopMonthViewScroll();
}
}
// Start the scroll animation
function startMonthViewScroll() {
isAnimating = true;
totalFrames = TRANSITION_FRAMES_COUNT;
updateState = scrollToOffset;
render = function () {
drawMonthView();
};
afterAnimation = function () {
drawAfterAnimation();
};
window.requestAnimationFrame(runScrollAnimation)
}
function scrollToPrevMonth() {
// Having met the first month.
if (currentTime === MIN_TIME) return;
prevMonthIndex();
calcNewStopOffset();
if (!isAnimating) {
startMonthViewScroll();
} else {
totalFrames = TRANSITION_FRAMES_COUNT;
}
}
function scrollToNextMonth() {
// Having met the last month.
if (currentTime === MAX_TIME) return;
nextMonthIndex();
calcNewStopOffset();
if (!isAnimating) {
startMonthViewScroll();
} else {
totalFrames = TRANSITION_FRAMES_COUNT;
}
}
function startMonthViewScrollDown() {
// Having met the first month.
if (currentTime === MIN_TIME) return;
isWaitingForStop = true;
isAnimating = true;
totalFrames = 10000000;
scrollDirection = -1;
updateState = function () {
if (currentOffset <= CONTINUOUS_SCROLLING_STEP) {
currentOffset = 0;
currentTime = MIN_TIME;
inRowOffset = 0;
// Meet the top, then stop animation.
stopMonthViewScroll();
} else {
currentOffset -= CONTINUOUS_SCROLLING_STEP;
currentTime = getTimeFromOffset(currentOffset);
inRowOffset = currentOffset - getOffset(currentTime);
if (getOffset(currentMonth) > currentOffset) {
prevMonthIndex();
// UI
DateLabel.update();
updateScrollContainerHeight();
}
}
};
render = function () {
drawMonthView();
};
afterAnimation = function () {
drawAfterAnimation();
};
window.requestAnimationFrame(runScrollAnimation);
}
function startMonthViewScrollUp() {
// Having met the last month.
if (currentTime === MAX_TIME) return;
isWaitingForStop = true;
isAnimating = true;
totalFrames = 10000000;
scrollDirection = 1;
updateState = function () {
if ((MAX_OFFSET - currentOffset) <= CONTINUOUS_SCROLLING_STEP) {
currentOffset = MAX_OFFSET;
currentTime = MAX_TIME;
inRowOffset = 0;
// Meet the bottom, then stop animation.
stopMonthViewScroll();
} else {
currentOffset += CONTINUOUS_SCROLLING_STEP;
currentTime = getTimeFromOffset(currentOffset);
inRowOffset = currentOffset - getOffset(currentTime);
if (getOffset(currentMonth) < currentOffset) {
nextMonthIndex();
//UI
DateLabel.update();
updateScrollContainerHeight();
}
}
};
render = function () {
drawMonthView();
};
afterAnimation = function () {
drawAfterAnimation();
};
window.requestAnimationFrame(runScrollAnimation);
}
function stopMonthViewScroll() {
if (isWaitingForStop) {
isWaitingForStop = false;
// Scroll to the nearest month.
if (currentTime < MAX_TIME && currentTime > MIN_TIME) {
if (scrollDirection === 1) { // up
if (getStartTimeOfMonth(currentMonth) < MAX_TIME) {
nextMonthIndex();
totalFrames = TRANSITION_FRAMES_COUNT;
calcNewStopOffset();
DateLabel.update();
updateScrollContainerHeight();
} else {
totalFrames = Math.ceil((MAX_OFFSET - currentOffset)/5);
calcNewStopOffset();
}
} else { // down
if (getStartTimeOfMonth(currentMonth) > MIN_TIME) {
prevMonthIndex();
totalFrames = TRANSITION_FRAMES_COUNT;
calcNewStopOffset();
DateLabel.update();
updateScrollContainerHeight();
} else {
totalFrames = Math.ceil(currentOffset/5);
calcNewStopOffset();
}
}
updateState = scrollToOffset;
} else {
isAnimating = false;
}
} else {
isAnimating = false;
}
}
//endregion
//region year view animation
// Scroll year view
var scrollStep = 0;
var expandedYear = null;
var selectedYear = null;
var monthGridTop;
var monthGridBottom;
var yCurrentOffset = 0;
var yScrollDirection = null;
var maxOffset = 25759*YEAR_ROW_HEIGHT;
function startYearViewScroll() {
if ((yCurrentOffset === maxOffset && yScrollDirection === 1)
|| (yCurrentOffset === YEAR_ROW_HEIGHT && yScrollDirection === -1)) {
return;
}
monthGridTop = (expandedYear + 1) * YEAR_ROW_HEIGHT;
monthGridBottom = monthGridTop + MONTH_GRID_HEIGHT;
isAnimating = true;
updateState = function () {
if (yScrollDirection === 1) { // Up
if ((maxOffset - yCurrentOffset) > scrollStep) {
yCurrentOffset += scrollStep;
} else {
yCurrentOffset = maxOffset;
isAnimating = false;
}
} else { // Down
if ((yCurrentOffset - YEAR_ROW_HEIGHT) > scrollStep) {
yCurrentOffset -= scrollStep;
} else {
yCurrentOffset = YEAR_ROW_HEIGHT;
isAnimating = false;
}
}
};
render = function () {
drawYearView(contextYearViewForeground);
};
afterAnimation = function () {
};
window.requestAnimationFrame(runScrollAnimation);
}
// Accordion animation
var collapsingMonthGridHeight;
var expandingMonthGridHeight;
function startYearViewFoldAnimation() {
var offset = (selectedYear * YEAR_ROW_HEIGHT);
var frames = TRANSITION_FRAMES_COUNT - 8;
var diff = offset - yCurrentOffset;
var dy = Math.round(MONTH_GRID_HEIGHT/frames);
collapsingMonthGridHeight = MONTH_GRID_HEIGHT;
expandingMonthGridHeight = 0;
isAnimating = true;
updateState = function() {
var step = Math.round(diff/frames);
yCurrentOffset += step;
diff -= step;
frames--;
if (frames === 0) {
expandingMonthGridHeight = MONTH_GRID_HEIGHT;
collapsingMonthGridHeight = 0;
isAnimating = false;
} else {
expandingMonthGridHeight += dy;
collapsingMonthGridHeight -= dy;
}
};
render = function () {
contextYearViewForeground.save();
contextYearViewForeground.clearRect(0, 0, $canvasYearViewForeground[0].width, $canvasYearViewForeground[0].height);
drawFoldingYearView(contextYearViewForeground);
contextYearViewForeground.restore();
};
afterAnimation = function() {
expandedYear = selectedYear;
selectedYear = null;
monthGridTop = yCurrentOffset + YEAR_ROW_HEIGHT;
monthGridBottom = monthGridTop + MONTH_GRID_HEIGHT;
};
window.requestAnimationFrame(runScrollAnimation);
}
//endregion
// Canvas
//region Canvas month view
function drawMonthView() {
contextMonthViewBackground.save();
contextMonthViewForeground.save();
contextMonthViewBackground.translate(0, -inRowOffset);
contextMonthViewForeground.translate(0, -inRowOffset);
contextMonthViewBackground.clearRect(0, 0, $canvasMonthViewBackground[0].width, $canvasMonthViewBackground[0].height);
contextMonthViewForeground.clearRect(0, 0, $canvasMonthViewForeground[0].width, $canvasMonthViewForeground[0].height);
var t = new Date();
for (var i = 0; i < 7; i++) {
for (var j = 0; j < 7; j++) {
t.setTime(currentTime + (i*7+j)*24*3600000);
contextMonthViewForeground.fillText(t.getDate(), j * DAY_CELL_WIDTH + DAY_CELL_WIDTH/2, i * ROW_HEIGHT + ROW_HEIGHT/2);
if (isSameDate(t.getTime(), today)) {
drawTodayCellBorder(i, j);
}
if (selectedDay) {
if (isSameDate(t.getTime(), selectedDay)) {
drawSelectedDayCellBackground(i, j);
}
}
}
}
contextMonthViewBackground.restore();
contextMonthViewForeground.restore();
}
function drawOutsideDays() {
var d = new Date(currentMonth);
var w = d.getDay();
var n = daysInMonth(currentMonth);
var r = Math.ceil((d.getDay() + n)/7);
contextMonthViewForeground.save();
contextMonthViewForeground.fillStyle = COLOR_OUTSIDE_DAY;
if (w > 0) {
d.setDate(d.getDate() - 1);
for (var i=w;i>0;i--, d.setDate(d.getDate()-1)) {
contextMonthViewForeground.clearRect(DAY_CELL_WIDTH * (i - 1), 0, DAY_CELL_WIDTH, ROW_HEIGHT);
contextMonthViewForeground.fillText(d.getDate(), (i - 1)* DAY_CELL_WIDTH + DAY_CELL_WIDTH/2, ROW_HEIGHT/2);
}
}
d = new Date(currentMonth);
d.setMonth(d.getMonth() + 1);
w = d.getDay();
y = (r - 1)*ROW_HEIGHT;
if (w > 0) {
for (var i=w,j=1;i<=6;i++,j++) {
contextMonthViewForeground.clearRect(DAY_CELL_WIDTH * i, y, DAY_CELL_WIDTH, ROW_HEIGHT);
contextMonthViewForeground.fillText(j, i * DAY_CELL_WIDTH + DAY_CELL_WIDTH/2, y + ROW_HEIGHT/2);
}
}
contextMonthViewForeground.restore();
}
function drawSelectedDayCellBackground(row, col) {
contextMonthViewBackground.save();
contextMonthViewBackground.fillStyle = COLOR_SELECTED_DAY_CELL_BACKGROUND;
contextMonthViewBackground.fillRect(col * DAY_CELL_WIDTH, row * ROW_HEIGHT, DAY_CELL_WIDTH, ROW_HEIGHT);
contextMonthViewBackground.restore();
}
function drawTodayCellBorder(row, col) {
contextMonthViewBackground.save();
contextMonthViewBackground.strokeStyle = COLOR_DAY_CELL_BORDER;
contextMonthViewBackground.strokeRect(col * DAY_CELL_WIDTH, row * ROW_HEIGHT, DAY_CELL_WIDTH, ROW_HEIGHT);
contextMonthViewBackground.restore();
}
function drawBackground(hoverX, hoverY) {
contextMonthViewBackground.save();
contextMonthViewBackground.clearRect(0, 0, $canvasMonthViewBackground[0].width, $canvasMonthViewBackground[0].height);
// If mouse hover on the month view, then highlight the day cell.
if (hoverX) {
var row = Math.floor(hoverY/ROW_HEIGHT);
var col = Math.floor(hoverX/DAY_CELL_WIDTH);
contextMonthViewBackground.fillStyle = COLOR_DAY_CELL_BACKGROUND;
contextMonthViewBackground.fillRect(col*DAY_CELL_WIDTH, row*ROW_HEIGHT, DAY_CELL_WIDTH, ROW_HEIGHT);
}
// Draw selected day background
if (selectedDay && selectedDay >= currentTime && selectedDay <= (currentTime + 6*7*24*3600000)) {
row = Math.floor((selectedDay - currentTime)/(7*24*3600000));
col = Math.floor((selectedDay - currentTime)%(7*24*3600000)/(24*3600000));
drawSelectedDayCellBackground(row, col);
}
// Draw today cell border
if (today >= currentTime && today <= (currentTime + 6*7*24*3600000)) {
row = Math.floor((today - currentTime)/(7*24*3600000));
col = Math.floor((today - currentTime)%(7*24*3600000)/(24*3600000));
drawTodayCellBorder(row, col);
}
contextMonthViewBackground.restore();
}
function drawAfterAnimation() {
drawOutsideDays();
drawBackground();
}
//endregion
//region Canvas year view
function drawYearView(ctx) {
var dy;
var index;
var start;
ctx.save();
ctx.clearRect(0, 0, $canvasYearViewForeground[0].width, $canvasYearViewForeground[0].height);
if (yCurrentOffset >= monthGridBottom) {
index = Math.floor((yCurrentOffset - MONTH_GRID_HEIGHT) / YEAR_ROW_HEIGHT);
dy = yCurrentOffset - MONTH_GRID_HEIGHT - index * YEAR_ROW_HEIGHT;
start = index;
} else if (yCurrentOffset < monthGridTop) {
index = Math.floor(yCurrentOffset / YEAR_ROW_HEIGHT);
dy = yCurrentOffset - index * YEAR_ROW_HEIGHT;
start = index;
} else {
dy = yCurrentOffset - monthGridTop;
start = expandedYear + 1;
}
ctx.translate(0, -dy);
for (var i = start;i < start + 7;i++) {
if ((i - 1) === expandedYear && yCurrentOffset < monthGridBottom) {
drawMonthGrid(ctx);
ctx.translate(0, MONTH_GRID_HEIGHT);
}
drawYearItem(ctx, i);
ctx.translate(0, YEAR_ROW_HEIGHT);
}
ctx.restore();
}
function drawYearItem(ctx, year) {
ctx.save();
ctx.fillStyle = COLOR_YEAR_VIEW_BACKGROUND;
ctx.fillRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, YEAR_ROW_HEIGHT);
ctx.fillStyle = '#000';
ctx.fillText(padYear(year), 20, YEAR_ROW_HEIGHT/2);
ctx.strokeStyle = COLOR_YEAR_BORDER_BOTTOM;
ctx.beginPath();
ctx.moveTo(0, YEAR_ROW_HEIGHT);
ctx.lineTo(YEAR_VIEW_SCROLL_CONTAINER_WIDTH, YEAR_ROW_HEIGHT);
ctx.stroke();
ctx.restore();
}
function drawMonthGrid(ctx) {
var months = [
'一月', '二月', '三月', '四月',
'五月', '六月', '七月', '八月',
'九月', '十月', '十一月', '十二月'
];
ctx.save();
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT);
for (var i=0;i<3;i++) {
for (var j=0;j<4;j++) {
ctx.fillStyle = 'black';
ctx.fillText(months[i*4 + j], j*MONTH_CELL_WIDTH + MONTH_CELL_WIDTH/2, i*MONTH_CELL_HEIGHT + MONTH_CELL_HEIGHT/2);
}
}
ctx.strokeStyle = COLOR_YEAR_BORDER_BOTTOM;
ctx.beginPath();
ctx.moveTo(0, MONTH_GRID_HEIGHT);
ctx.lineTo(YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT);
ctx.stroke();
ctx.restore();
}
function drawMonthGridBackground(ctx, x, y) {
var ox = Math.floor(x/MONTH_CELL_WIDTH)*MONTH_CELL_WIDTH;
var oy = (monthGridTop - yCurrentOffset) + Math.floor((y - (monthGridTop - yCurrentOffset))/MONTH_CELL_HEIGHT)*MONTH_CELL_HEIGHT;
if (oy >= 0 && oy <YEAR_VIEW_SCROLL_CONTAINER_HEIGHT) {
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, YEAR_VIEW_SCROLL_CONTAINER_HEIGHT);
ctx.fillStyle = COLOR_MONTH_CELL_BACKGROUND;
ctx.fillRect(ox, oy, MONTH_CELL_WIDTH, MONTH_CELL_HEIGHT);
}
}
function drawFoldingYearView(ctx) {
var index;
var diff;
if (selectedYear < expandedYear) {
index = Math.floor(yCurrentOffset/YEAR_ROW_HEIGHT);
diff = yCurrentOffset - index * YEAR_ROW_HEIGHT;
ctx.translate(0, -diff);
for (var i=index;i<=selectedYear;i++) {
drawYearItem(ctx, i);
ctx.translate(0, YEAR_ROW_HEIGHT);
}
drawMonthGrid(ctx);
ctx.translate(0, expandingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - expandingMonthGridHeight);
for (var i=selectedYear + 1;i<selectedYear + 1 + 5;i++) {
if ((i-1) === expandedYear) {
drawMonthGrid(ctx);
ctx.translate(0, collapsingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - collapsingMonthGridHeight);
}
drawYearItem(ctx, i);
ctx.translate(0, YEAR_ROW_HEIGHT);
}
} else {
var collapsingMonthGridTop = (expandedYear + 1) * YEAR_ROW_HEIGHT;
var collapsingMonthGridBottom = collapsingMonthGridTop + collapsingMonthGridHeight;
if (yCurrentOffset <= collapsingMonthGridTop) {
index = Math.floor(yCurrentOffset/YEAR_ROW_HEIGHT);
diff = yCurrentOffset - index * YEAR_ROW_HEIGHT;
ctx.translate(0, -diff);
for (var i=index;i<index+6;i++) {
if ((i - 1) === expandedYear) {
drawMonthGrid(ctx);
ctx.translate(0, collapsingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - collapsingMonthGridHeight);
}
if ((i - 1) === selectedYear) {
drawMonthGrid(ctx);
ctx.translate(0, expandingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - expandingMonthGridHeight);
}
drawYearItem(ctx, i);
ctx.translate(0, YEAR_ROW_HEIGHT);
}
} else if (yCurrentOffset < collapsingMonthGridBottom) {
ctx.translate(0, -(collapsingMonthGridHeight - (collapsingMonthGridBottom - yCurrentOffset)));
drawMonthGrid(ctx);
ctx.translate(0, collapsingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - collapsingMonthGridHeight);
for (var i=expandedYear + 1;i<expandedYear + 1 + 6;i++) {
if ((i-1) === selectedYear) {
drawMonthGrid(ctx);
ctx.translate(0, expandingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - expandingMonthGridHeight);
}
drawYearItem(ctx, i);
ctx.translate(0, YEAR_ROW_HEIGHT);
}
} else {
index = Math.floor((yCurrentOffset - collapsingMonthGridHeight)/YEAR_ROW_HEIGHT);
diff = yCurrentOffset - collapsingMonthGridHeight - index*YEAR_ROW_HEIGHT;
ctx.translate(0, -diff);
for (var i=index;i<index + 6;i++) {
if ((i-1) === selectedYear) {
drawMonthGrid(ctx);
ctx.translate(0, expandingMonthGridHeight);
ctx.clearRect(0, 0, YEAR_VIEW_SCROLL_CONTAINER_WIDTH, MONTH_GRID_HEIGHT - expandingMonthGridHeight)
}
drawYearItem(ctx, i);
ctx.translate(0, YEAR_ROW_HEIGHT);
}
}
}
}
function clearYearViewBackground() {
contextYearViewBackground.clearRect(0, 0, $canvasMonthViewBackground[0].width, $canvasMonthViewBackground[0].height);
}
//endregion
//region Dom update
// Scroll container
function updateScrollContainerHeight() {
var dt = new Date(currentMonth);
$domScrollContainer[0].style.height = (Math.ceil((dt.getDay() + daysInMonth(dt))/7) * ROW_HEIGHT) + 'px';
}
function updateThumbPosition(dy) {
$domThumb.css('transform', 'translateY('+dy+'px)');
}
// Date label
var DateLabel = {
year: null,
month: null,
toNextMonth: function () {
},
toPrevMonth: function () {
},
toDate: function (dt) {
$domDateLabelText[0].innerText = (this._getDateStr(dt));
},
update: function () {
$domDateLabelText[0].innerText = (this._getDateStr(currentMonth));
},
_getDateStr: function (dt) {
var d = new Date(dt);
return padYear(d.getFullYear()) + '年' + padMonthOrDay(d.getMonth() + 1) + '月';
}
};
//endregion
// Month view
function setMonthView(dt) {
currentMonth = toFirstDayOfMonth(dt);
currentTime = getStartTimeOfMonth(currentMonth);
currentOffset = getOffset(currentTime);
DateLabel.toDate(dt);
updateScrollContainerHeight();
drawMonthView();
drawOutsideDays();
}
// Year view
function setYearView(year) {
expandedYear = year;
yCurrentOffset = expandedYear * YEAR_ROW_HEIGHT;
monthGridTop = (expandedYear + 1) * YEAR_ROW_HEIGHT;
monthGridBottom = monthGridTop + MONTH_GRID_HEIGHT;
drawYearView(contextYearViewForeground);
}
function foregroundMonthView() {
$domYearView.remove();
$domMonthView.appendTo($domMainBody);
$domMask.hide();
}
function foregroundYearView() {
$domMonthView.remove();
$domYearView.appendTo($domMainBody);
$domMask.show();
}
//region Date input
var editableElement;
var inputYear = null;
var inputMonth = null;
var inputDay = null;
var inputNumbers = [];
var keyboardInput = false;
function updateInput() {
$domInputYear.text(padYear(inputYear));
$domInputMonth.text(padMonthOrDay(inputMonth + 1));
$domInputDay.text(padMonthOrDay(inputDay));
}
function closeCalendarPanel(dt, delay) {
var d = new Date(dt);
inputYear = d.getFullYear();
inputMonth = d.getMonth();
inputDay = d.getDate();
updateInput();
if (delay) {
setTimeout(function() {
$domMain.hide();
}, 100);
} else {
$domMain.hide();
}
$domInputClear.show();
}
function isInputDateValid() {
return inputYear && inputDay && inputMonth !== null;
}
function adjustDayOnYearChange() {
if (inputDay > 28 && inputMonth === 1 && !isLeapYear(inputYear)) {
inputDay = 28;
$domInputDay.text(padMonthOrDay(inputDay));
}
}
function adjustDayOnMonthChange() {
var m1 = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
var m2 = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (inputDay > 28) {
if (inputYear && isLeapYear(inputYear)) {
if (m1[inputMonth] < inputDay) {
inputDay = m1[inputMonth];
$domInputDay.text(padMonthOrDay(inputDay));
}
} else {
if (m2[inputMonth] < inputDay) {
inputDay = m2[inputMonth];
$domInputDay.text(padMonthOrDay(inputDay));
}
}
}
}
function adjustDayOnDayChange() {
var m1 = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
var m2 = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (inputDay === 0) {
inputDay = 1;
} else if (inputDay > 31) {
inputDay = 31;
}
if (inputMonth !== null) {
if (inputYear !== null && isLeapYear(inputYear)) {
if (m1[inputMonth] < inputDay) {
inputDay = m1[inputMonth];
}
} else {
if (m2[inputMonth] < inputDay) {
inputDay = m2[inputMonth];
}
}
}
$domInputDay.text(padMonthOrDay(inputDay));
}
function highlightEditableElement(el) {
if (editableElement === el) {
return;
}
onEditableElementBlur();
if (editableElement)
editableElement.removeClass('active');
editableElement = el;
editableElement.addClass('active');
}
function increaseDate() {
if (editableElement === $domInputYear) {
increaseYear();
} else if (editableElement === $domInputMonth) {
increaseMonth();
} else {
increaseDay();
}
}
function decreaseDate() {
if (editableElement === $domInputYear) {
decreaseYear();
} else if (editableElement === $domInputMonth) {
decreaseMonth();
} else {
decreaseDay();
}
}
function increaseYear() {
if (inputYear) {
if (inputYear < MAX_YEAR) {
inputYear++;
} else {
clearTimer();
clearRepeatedTimer();
}
} else {
inputYear = new Date(today).getFullYear();
}
adjustDayOnYearChange();
$domInputYear.text(padYear(inputYear));
}
function decreaseYear() {
if (inputYear) {
if (inputYear > MIN_YEAR) {
inputYear--;
} else {
clearTimer();
clearRepeatedTimer();
}
} else {
inputYear = new Date().getFullYear();
}
adjustDayOnYearChange();
$domInputYear.text(padYear(inputYear));
}
function increaseMonth() {
if (inputMonth !== null) {
inputMonth = (inputMonth + 1)%12;
} else {
inputMonth = 0;
}
adjustDayOnMonthChange();
$domInputMonth.text(padMonthOrDay(inputMonth + 1));
}
function decreaseMonth() {
if (inputMonth !== null) {
inputMonth = (inputMonth - 1 + 12)%12;
} else {
inputMonth = 0;
}
adjustDayOnMonthChange();
$domInputMonth.text(padMonthOrDay(inputMonth + 1));
}
function increaseDay() {
if (inputDay) {
if (inputDay < 28) {
inputDay += 1;
} else {
if (inputMonth !== null) {
if (inputMonth === 1) {
if (inputYear && isLeapYear(inputYear)) {
if (inputDay === 29) {
inputDay = 1;
} else {
inputDay++;
}
} else {
inputDay = 1;
}
} else {
inputDay = inputDay%([31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][inputMonth]) + 1;
}
} else {
inputDay = inputDay%31 + 1;
}
}
} else {
inputDay = 1;
}
$domInputDay.text(padMonthOrDay(inputDay));
}
function decreaseDay() {
if (inputDay) {
if (inputDay === 1) {
if (inputMonth !== null) {
if (inputMonth === 1 && inputYear && isLeapYear(inputYear)) {
inputDay = 29;
} else {
var daysCount = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][inputMonth];
inputDay = (inputDay - 1 + daysCount)%(daysCount + 1);
}
} else {
inputDay = 31;
}
} else {
inputDay--;
}
} else {
inputDay = 1;
}
$domInputDay.text(padMonthOrDay(inputDay));
}
function onSpinUpBtnDown() {
if (!editableElement) {
highlightEditableElement($domInputYear);
}
increaseDate();
setTimer(function() {
setRepeatedTimer(increaseDate, 32);
}, 300);
}
function onSpinUpBtnUp() {
clearTimer();
clearRepeatedTimer();
}
function onSpinDownBtnDown() {
if (!editableElement) {
highlightEditableElement($domInputYear);
}
decreaseDate();
setTimer(function () {
setRepeatedTimer(decreaseDate, 32);
}, 300);
}
function onSpinDownBtnUp() {
clearTimer();
clearRepeatedTimer();
}
function onClickClearBtn() {
$domInputYear.text('年');
$domInputMonth.text('月');
$domInputDay.text('日');
inputYear = inputMonth = inputDay = null;
}
function onClickIndicator(e) {
e.stopPropagation();
if (keyboardInput) {
keyboardInput = false;
onEditableElementBlur();
}
if (isInputDateValid()) {
selectedDay = parseDateArray([inputYear, inputMonth + 1, inputDay]);
setMonthView(selectedDay);
} else {
selectedDay = null;
setMonthView(today);
}
foregroundMonthView();
$domMain.show();
}
function onDatePickerBlur() {
onEditableElementBlur();
editableElement.removeClass('active');
editableElement = null;
$domMain.hide();
}
function prevEditableElement() {
if (editableElement === $domInputMonth) {
highlightEditableElement($domInputYear);
} else if (editableElement === $domInputDay) {
highlightEditableElement($domInputMonth);
}
}
function nextEditableElement() {
if (editableElement === $domInputMonth) {
highlightEditableElement($domInputDay);
} else if (editableElement === $domInputYear) {
highlightEditableElement($domInputMonth);
}
}