// jQuery Alert Dialogs Plugin
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//
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// Version 1.0
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//
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// Cory S.N. LaViska
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// A Beautiful Site (http://abeautifulsite.net/)
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// 29 December 2008
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//
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// Visit http://abeautifulsite.net/notebook/87 for more information
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//
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// Usage:
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// jAlert( message, [title, callback] )
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// jConfirm( message, [title, callback] )
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// jPrompt( message, [value, title, callback] )
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//
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// History:
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//
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// 1.00 - Released (29 December 2008)
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//
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// License:
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//
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// This plugin is licensed under the GNU General Public License: http://www.gnu.org/licenses/gpl.html
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//
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(function($) {
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$.alerts = {
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// These properties can be read/written by accessing $.alerts.propertyName from your scripts at any time
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verticalOffset: -75, // vertical offset of the dialog from center screen, in pixels
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horizontalOffset: 0, // horizontal offset of the dialog from center screen, in pixels/
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repositionOnResize: true, // re-centers the dialog on window resize
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overlayOpacity: 0.6, // transparency level of overlay
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overlayColor: '#000', // base color of overlay
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draggable: false, // make the dialogs draggable (requires UI Draggables plugin)
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okButton: ' 确定 ', // text for the OK button
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cancelButton: ' 取消 ', // text for the Cancel button
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dialogClass: null, // if specified, this class will be applied to all dialogs
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// Public methods
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alert: function(message, title, callback) {
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if( title == null ) title = '确认信息';
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$.alerts._show(title, message, null, 'alert', function(result) {
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if( callback ) callback(result);
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});
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},
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confirm: function(message, title, callback) {
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if( title == null ) title = '确认信息';
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$.alerts._show(title, message, null, 'confirm', function(result) {
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if( callback ) callback(result);
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});
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},
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prompt: function(message, value, title, callback) {
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if( title == null ) title = 'Prompt';
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$.alerts._show(title, message, value, 'prompt', function(result) {
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if( callback ) callback(result);
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});
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},
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// Private methods
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_show: function(title, msg, value, type, callback) {
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$.alerts._hide();
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$.alerts._overlay('show');
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$("BODY").append(
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'<div id="popup_container">' +
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'<h1 id="popup_title"></h1>' +
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'<div id="popup_content">' +
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'<div id="popup_message"></div>' +
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'</div>' +
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'</div>');
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if( $.alerts.dialogClass ) $("#popup_container").addClass($.alerts.dialogClass);
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// IE6 Fix
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var pos = 'absolute';
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$("#popup_container").css({
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position: pos,
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zIndex: 99999,
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padding: 0,
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margin: 0
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});
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$("#popup_title").text(title);
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$("#popup_content").addClass(type);
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$("#popup_message").text(msg);
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$("#popup_message").html( $("#popup_message").text().replace(/\n/g, '<br />') );
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$("#popup_container").css({
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minWidth: $("#popup_container").outerWidth(),
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maxWidth: $("#popup_container").outerWidth()
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});
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$.alerts._reposition();
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$.alerts._maintainPosition(true);
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switch( type ) {
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case 'alert':
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$("#popup_message").after('<a class="popup_panel popup_ok"><span class="alert-ui-btn" type="button" id="popup_ok"><span class="ui-txt">'+ $.alerts.okButton +'</span></span></a>');
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$("#popup_ok").click( function() {
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$.alerts._hide();
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callback(true);
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});
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$("#popup_ok").focus().keypress( function(e) {
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if( e.keyCode == 13 || e.keyCode == 27 ) $("#popup_ok").trigger('click');
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});
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break;
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case 'confirm':
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$("#popup_message").after('<a class="popup_panel popup_ok"><span class="alert-ui-btn" type="button" id="popup_ok"><span class="ui-txt">'+ $.alerts.okButton +'</span></span></a> <a class="popup_panel popup_cancel"><span class="alert-ui-btn" type="button" id="popup_cancel"><span class="ui-txt">'+ $.alerts.cancelButton +'</span></span></a>');
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$("#popup_ok").click( function() {
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$.alerts._hide();
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if( callback ) callback(true);
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});
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$("#popup_cancel").click( function() {
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$.alerts._hide();
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if( callback ) callback(false);
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});
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$("#popup_ok").focus();
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$("#popup_ok, #popup_cancel").keypress( function(e) {
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if( e.keyCode == 13 ) $("#popup_ok").trigger('click');
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if( e.keyCode == 27 ) $("#popup_cancel").trigger('click');
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});
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break;
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case 'prompt':
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$("#popup_message").append('<br /><input type="text" size="30" id="popup_prompt" />').after('<a class="popup_panel popup_ok"><span class="alert-ui-btn" type="button" id="popup_ok"><span class="ui-txt">'+ $.alerts.okButton +'</span></span></a> <a class="popup_panel popup_cancel"><span class="alert-ui-btn" type="button" id="popup_cancel"><span class="ui-txt">'+ $.alerts.cancelButton +'</span></span></a>');
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$("#popup_prompt").width( $("#popup_message").width() );
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$("#popup_ok").click( function() {
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var val = $("#popup_prompt").val();
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$.alerts._hide();
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if( callback ) callback( val );
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});
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$("#popup_cancel").click( function() {
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$.alerts._hide();
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if( callback ) callback( null );
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});
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$("#popup_prompt, #popup_ok, #popup_cancel").keypress( function(e) {
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if( e.keyCode == 13 ) $("#popup_ok").trigger('click');
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if( e.keyCode == 27 ) $("#popup_cancel").trigger('click');
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});
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if( value ) $("#popup_prompt").val(value);
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$("#popup_prompt").focus().select();
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break;
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}
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// Make draggable
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if( $.alerts.draggable ) {
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try {
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$("#popup_container").draggable({ handle: $("#popup_title") });
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$("#popup_title").css({ cursor: 'move' });
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} catch(e) { /* requires jQuery UI draggables */ }
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}
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},
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_hide: function() {
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$("#popup_container").remove();
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$.alerts._overlay('hide');
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$.alerts._maintainPosition(false);
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},
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_overlay: function(status) {
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switch( status ) {
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case 'show':
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$.alerts._overlay('hide');
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$("BODY").append('<div id="popup_overlay"></div>');
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$("#popup_overlay").css({
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position: 'absolute',
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zIndex: 99998,
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top: '0px',
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left: '0px',
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width: '100%',
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height: $(document).height(),
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background: $.alerts.overlayColor,
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opacity: $.alerts.overlayOpacity
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});
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break;
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case 'hide':
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$("#popup_overlay").remove();
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break;
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}
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},
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_reposition: function() {
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var top = (($(window).height() / 2) - ($("#popup_container").outerHeight() / 2)) + $.alerts.verticalOffset;
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var left = (($(window).width() / 2) - ($("#popup_container").outerWidth() / 2)) + $.alerts.horizontalOffset;
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if(top >= 150) top = 50;
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if( top < 0 ) top = 0;
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if( left < 0 ) left = 0;
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// IE6 fix
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top = top + $(window).scrollTop();
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$("#popup_container").css({
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top: top + 'px',
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left: left + 'px'
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});
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$("#popup_overlay").height( $(document).height() );
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},
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_maintainPosition: function(status) {
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if( $.alerts.repositionOnResize ) {
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switch(status) {
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case true:
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$(window).bind('resize', function() {
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$.alerts._reposition();
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});
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break;
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case false:
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$(window).unbind('resize');
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break;
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}
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}
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}
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}
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// Shortuct functions
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jAlert = function(message, title, callback) {
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$.alerts.alert(message, title, callback);
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}
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jConfirm = function(message, title, callback) {
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$.alerts.confirm(message, title, callback);
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};
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jPrompt = function(message, value, title, callback) {
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$.alerts.prompt(message, value, title, callback);
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};
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})(jQuery);
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