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gongonzacal.js
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gongonzacal.js
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//Implement indexOf for IE
if(!Array.prototype.indexOf) {
Array.prototype.indexOf = function(needle) {
for(var i = 0; i < this.length; i++) {
if(this[i] === needle) {
return i;
}
}
return -1;
};
}
function gongonzacal(container, onpick){
this.initialized = false;
this.onpick = onpick;
this.container_name = container;
this.root = document.getElementById(container);
window.gongonza_cal = this;
this.selected_date = null;
this.selected_cell = null;
this.current_date = new Date();
this.current_date.setDate(1);
this.calendar_cells = []; //matrix of all the cell nodes;
this.months_lookup = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
// Return if we can't find the container
if(this.root != null){
this.initialized = true;
}
else{
return false;
}
this.root.innerHTML = this.markup();
//Set the Title Node
this.title_node = get_child_by_id(get_child_by_id(this.root, "top_bar"), "title");
//Set the Calendar Cells
var cell_container = get_child_by_id(this.root, "calendar_cells");
for(var i = 0; i < 6; i++){
var row = [];
for(var j = 0; j < 7; j++){
var cell = get_child_by_id(cell_container, ("cell" + i) + j);
row.push(cell);
}
this.calendar_cells.push(row);
}
//Populate the Calendar
this.update_calendar();
}
gongonzacal.prototype.get_root = function(){
return this.root;
}
gongonzacal.prototype.set_title = function(title){
this.title_node.innerText = title;
}
gongonzacal.prototype.set_cell_text = function(row, col, text){
var link = this.calendar_cells[row][col].firstChild;
link.innerText = text;
}
gongonzacal.prototype.get_cell_value = function(row, col){
var retval = NaN;
var link = this.calendar_cells[row][col].firstChild;
retval = parseInt(link.innerText);
return retval;
}
gongonzacal.prototype.set_month = function(month){
this.current_date.setMonth(month);
this.current_date.setDate(1);
this.update_calendar();
}
gongonzacal.prototype.next_month = function(){
if(this.current_date.getMonth() == 11){
this.current_date.setFullYear(this.current_date.getFullYear() + 1);
}
this.set_month((this.current_date.getMonth() + 1) % 12);
}
gongonzacal.prototype.previous_month = function(){
if(this.current_date.getMonth() == 0){
this.current_date.setFullYear(this.current_date.getFullYear() - 1);
this.set_month(11);
}
else{
this.set_month(this.current_date.getMonth() - 1);
}
}
gongonzacal.prototype.select_cell = function(row, col){
var cell = this.calendar_cells[row][col];
var val = this.get_cell_value(row, col);
if (!isNaN(val)){ //could add further bound checking here
this.selected_date = new Date();
this.selected_date.setDate(val);
this.selected_date.setMonth(this.current_date.getMonth());
this.selected_date.setFullYear(this.current_date.getFullYear());
this.clear_selected_cell();
//Mark the current cell
this.selected_cell = cell;
this.add_select_class(cell);
if(this.onpick != null){
this.onpick(this.selected_date);
}
}
}
gongonzacal.prototype.add_select_class = function(cell){
var class_list = cell.className.split(" ");
if(class_list.indexOf("date_selected") == -1){
class_list.push("date_selected");
cell.className = class_list.join(" ");
}
}
gongonzacal.prototype.remove_select_class = function(cell){
if(cell != null){
var class_list = cell.className.split(" ");
var selected_index = class_list.indexOf("date_selected");
if(selected_index > -1){
class_list.splice(selected_index, 1);
cell.className = class_list.join(" ");
}
}
}
gongonzacal.prototype.clear_selected_cell = function(){
this.remove_select_class(this.selected_cell);
this.selected_cell = null;
}
gongonzacal.prototype.update_calendar = function(){
var start_date = this.current_date.getDay();
var current_day = 1;
var end_day = this.days_in_month(this.current_date.getMonth(), this.current_date.getFullYear());
var same_month_year = false;
if(this.selected_date != null){
same_month_year = (this.current_date.getFullYear() == this.selected_date.getFullYear() &&
this.current_date.getMonth() == this.selected_date.getMonth());
}
this.clear_selected_cell();
//Set days preceding start date to empty
for(var i = 0; i < start_date; i++){
this.set_cell_text(0, i, "");
}
//Fill in the rest of the first week
for(var i = start_date; i < 7; i++){
this.set_cell_text(0, i, current_day);
if(same_month_year){
if(current_day == this.selected_date.getDate()){
this.add_select_class(this.calendar_cells[0][i]);
this.selected_cell = calendar_cells[0][i];
}
else{
this.remove_select_class(this.calendar_cells[0][i]);
}
}
else{
this.remove_select_class(this.calendar_cells[0][i]);
}
current_day++;
}
//Fill in rest of the weeks
for(var i = 1; i < 6; i++){
for(var j = 0; j < 7; j++){
if(current_day <= end_day){
this.set_cell_text(i, j, current_day);
if(same_month_year){
if(current_day == this.selected_date.getDate()){
this.add_select_class(this.calendar_cells[i][j]);
}
else{
this.remove_select_class(this.calendar_cells[0][i]);
}
}
else{
this.remove_select_class(this.calendar_cells[0][i]);
}
current_day++;
}else{
this.set_cell_text(i, j, "");
}
}
}
this.set_title(this.months_lookup[this.current_date.getMonth()] + " " + this.current_date.getFullYear());
}
gongonzacal.prototype.days_in_month = function(month, year){
var days = 0;
switch(month){
case 0:
days = 31;
break;
case 1:
if (year % 4 == 0){
days = 29;
}else{
days = 28;
}
break;
case 2:
days = 31;
break;
case 3:
days = 30;
break;
case 4:
days = 31;
break;
case 5:
days = 30;
break;
case 6:
days = 31;
break;
case 7:
days = 31;
break;
case 8:
days = 30;
break;
case 9:
days = 31;
break;
case 10:
days = 30;
break;
case 11:
days = 31;
break;
default:
days = 0
break;
}
return days;
}
function get_child_by_id(root, child_id){
var child = null;
for (i in root.children){
if (root.children[i].id == child_id){
child = root.children[i];
break;
}
}
return child;
}
gongonzacal.prototype.markup = function(){
var markup = ' <div id="top_bar"> <div id="prev_nav"><a onclick="gongonza_cal.previous_month(); return false;"><img src="left_arrow.png" /></a></div> <div id="title"></div> <div id="next_nav"><a onclick="gongonza_cal.next_month(); return false;"><img src="right_arrow.png" /></a></div> </div> <div id="label_bar"> <div id="label0" class="lab_cell">Sun.</div> <div id="label1" class="lab_cell">Mon.</div> <div id="label2" class="lab_cell">Tue.</div> <div id="label3" class="lab_cell">Wed.</div> <div id="label4" class="lab_cell">Thur.</div> <div id="label5" class="lab_cell">Fri.</div> <div id="label6" class="lab_cell">Sat.</div> <div style="clear: both"></div> </div> <div id="calendar_cells"> <div id="cell00" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,0); return false;"></a></div> <div id="cell01" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,1); return false;"></a></div> <div id="cell02" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,2); return false;"></a></div> <div id="cell03" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,3); return false;"></a></div> <div id="cell04" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,4); return false;"></a></div> <div id="cell05" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,5); return false;"></a></div> <div id="cell06" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,6); return false;"></a></div> <div style="clear: both"></div> <div id="cell10" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,0); return false;"></a></div> <div id="cell11" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,1); return false;"></a></div> <div id="cell12" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,2); return false;"></a></div> <div id="cell13" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,3); return false;"></a></div> <div id="cell14" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,4); return false;"></a></div> <div id="cell15" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,5); return false;"></a></div> <div id="cell16" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,6); return false;"></a></div> <div style="clear: both"></div> <div id="cell20" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,0); return false;"></a></div> <div id="cell21" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,1); return false;"></a></div> <div id="cell22" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,2); return false;"></a></div> <div id="cell23" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,3); return false;"></a></div> <div id="cell24" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,4); return false;"></a></div> <div id="cell25" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,5); return false;"></a></div> <div id="cell26" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,6); return false;"></a></div> <div style="clear: both"></div> <div id="cell30" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,0); return false;"></a></div> <div id="cell31" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,1); return false;"></a></div> <div id="cell32" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,2); return false;"></a></div> <div id="cell33" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,3); return false;"></a></div> <div id="cell34" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,4); return false;"></a></div> <div id="cell35" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,5); return false;"></a></div> <div id="cell36" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,6); return false;"></a></div> <div style="clear: both"></div> <div id="cell40" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,0); return false;"></a></div> <div id="cell41" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,1); return false;"></a></div> <div id="cell42" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,2); return false;"></a></div> <div id="cell43" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,3); return false;"></a></div> <div id="cell44" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,4); return false;"></a></div> <div id="cell45" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,5); return false;"></a></div> <div id="cell46" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,6); return false;"></a></div> <div style="clear: both"></div> <div id="cell50" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,0); return false;"></a></div> <div id="cell51" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,1); return false;"></a></div> <div id="cell52" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,2); return false;"></a></div> <div id="cell53" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,3); return false;"></a></div> <div id="cell54" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,4); return false;"></a></div> <div id="cell55" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,5); return false;"></a></div> <div id="cell56" class="cal_cell right_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,6); return false;"></a></div> <div style="clear: both"></div> </div>';
return markup;
/*
<div id="top_bar">
<div id="prev_nav"><a onclick="gongonza_cal.previous_month(); return false;"><img src="left_arrow.png" /></a></div>
<div id="title"></div>
<div id="next_nav"><a onclick="gongonza_cal.next_month(); return false;"><img src="right_arrow.png" /></a></div>
</div>
<div id="label_bar">
<div id="label0" class="lab_cell">Sun.</div>
<div id="label1" class="lab_cell">Mon.</div>
<div id="label2" class="lab_cell">Tue.</div>
<div id="label3" class="lab_cell">Wed.</div>
<div id="label4" class="lab_cell">Thur.</div>
<div id="label5" class="lab_cell">Fri.</div>
<div id="label6" class="lab_cell">Sat.</div>
<div style="clear: both"></div>
</div>
<div id="calendar_cells">
<div id="cell00" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,0); return false;"></a></div>
<div id="cell01" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,1); return false;"></a></div>
<div id="cell02" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,2); return false;"></a></div>
<div id="cell03" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,3); return false;"></a></div>
<div id="cell04" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,4); return false;"></a></div>
<div id="cell05" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,5); return false;"></a></div>
<div id="cell06" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(0,6); return false;"></a></div>
<div style="clear: both"></div>
<div id="cell10" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,0); return false;"></a></div>
<div id="cell11" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,1); return false;"></a></div>
<div id="cell12" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,2); return false;"></a></div>
<div id="cell13" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,3); return false;"></a></div>
<div id="cell14" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,4); return false;"></a></div>
<div id="cell15" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,5); return false;"></a></div>
<div id="cell16" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(1,6); return false;"></a></div>
<div style="clear: both"></div>
<div id="cell20" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,0); return false;"></a></div>
<div id="cell21" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,1); return false;"></a></div>
<div id="cell22" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,2); return false;"></a></div>
<div id="cell23" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,3); return false;"></a></div>
<div id="cell24" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,4); return false;"></a></div>
<div id="cell25" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,5); return false;"></a></div>
<div id="cell26" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(2,6); return false;"></a></div>
<div style="clear: both"></div>
<div id="cell30" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,0); return false;"></a></div>
<div id="cell31" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,1); return false;"></a></div>
<div id="cell32" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,2); return false;"></a></div>
<div id="cell33" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,3); return false;"></a></div>
<div id="cell34" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,4); return false;"></a></div>
<div id="cell35" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,5); return false;"></a></div>
<div id="cell36" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(3,6); return false;"></a></div>
<div style="clear: both"></div>
<div id="cell40" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,0); return false;"></a></div>
<div id="cell41" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,1); return false;"></a></div>
<div id="cell42" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,2); return false;"></a></div>
<div id="cell43" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,3); return false;"></a></div>
<div id="cell44" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,4); return false;"></a></div>
<div id="cell45" class="cal_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,5); return false;"></a></div>
<div id="cell46" class="cal_cell right_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(4,6); return false;"></a></div>
<div style="clear: both"></div>
<div id="cell50" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,0); return false;"></a></div>
<div id="cell51" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,1); return false;"></a></div>
<div id="cell52" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,2); return false;"></a></div>
<div id="cell53" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,3); return false;"></a></div>
<div id="cell54" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,4); return false;"></a></div>
<div id="cell55" class="cal_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,5); return false;"></a></div>
<div id="cell56" class="cal_cell right_cell bottom_cell"><a class="cell_selector" onclick="gongonza_cal.select_cell(5,6); return false;"></a></div>
<div style="clear: both"></div>
</div>
*/
}