2 * @fileoverview functions used in GIS data editor
8 var gisEditorLoaded = false;
11 * Closes the GIS data editor and perform necessary clean up work.
13 function closeGISEditor(){
14 $("#popup_background").fadeOut("fast");
15 $("#gis_editor").fadeOut("fast");
16 $("#gis_editor").html('');
20 * Prepares the HTML recieved via AJAX.
22 function prepareJSVersion() {
23 // Hide 'Go' buttons associated with the dropdowns
26 // Change the text on the submit button
27 $("input[name='gis_data[save]']")
28 .attr('value', PMA_messages['strCopy'])
29 .insertAfter($('#gis_data_textarea'))
32 // Add close and cancel links
33 $('#gis_data_editor').prepend('<a class="close_gis_editor">' + PMA_messages['strClose'] + '</a>');
34 $('<a class="cancel_gis_editor"> ' + PMA_messages['strCancel'] + '</a>')
35 .insertAfter($("input[name='gis_data[save]']"));
37 // Remove the unnecessary text
38 $('div#gis_data_output p').remove();
40 // Remove 'add' buttons and add links
41 $('.add').each(function(e) {
42 var $button = $(this);
43 $button.addClass('addJs').removeClass('add');
44 var classes = $button.attr('class');
46 .after('<a class="' + classes + '" name="' + $button.attr('name')
47 + '">+ ' + $button.attr('value') + '</a>')
53 * Returns the HTML for a data point.
55 * @param pointNumber point number
56 * @param prefix prefix of the name
57 * @returns the HTML for a data point
59 function addDataPoint(pointNumber, prefix) {
60 return '<br>' + $.sprintf(PMA_messages['strPointN'], (pointNumber + 1)) + ':'
61 + '<label for="x"> ' + PMA_messages['strX'] + ' </label>'
62 + '<input type="text" name="' + prefix + '[' + pointNumber + '][x]" value="">'
63 + '<label for="y"> ' + PMA_messages['strY'] + ' </label>'
64 + '<input type="text" name="' + prefix + '[' + pointNumber + '][y]" value="">';
68 * Initialize the visualization in the GIS data editor.
70 function initGISEditorVisualization() {
71 // Loads either SVG or OSM visualization based on the choice
72 selectVisualization();
73 // Adds necessary styles to the div that coontains the openStreetMap
75 // Loads the SVG element and make a reference to it
77 // Adds controllers for zooming and panning
78 addZoomPanControllers();
83 * Loads JavaScript files and the GIS editor.
85 * @param value current value of the geometry field
86 * @param field field name
87 * @param type geometry type
88 * @param input_name name of the input field
91 function loadJSAndGISEditor(value, field, type, input_name, token) {
92 var head = document.getElementsByTagName('head')[0];
95 // Loads a set of small JS file needed for the GIS editor
96 var smallScripts = [ 'js/jquery/jquery.svg.js',
97 'js/jquery/jquery.sprintf.js',
98 'js/jquery/jquery.mousewheel.js',
99 'js/jquery/jquery.event.drag-2.0.min.js',
100 'js/tbl_gis_visualization.js' ];
102 for (i = 0; i < smallScripts.length; i++) {
103 script = document.createElement('script');
104 script.type = 'text/javascript';
105 script.src = smallScripts[i];
106 head.appendChild(script);
109 // OpenLayers.js is BIG and takes time. So asynchronous loading would not work.
110 // Load the JS and do a callback to load the content for the GIS Editor.
111 script = document.createElement('script');
112 script.type = 'text/javascript';
114 script.onreadystatechange = function() {
115 if (this.readyState == 'complete') {
116 loadGISEditor(value, field, type, input_name, token);
119 script.onload = function() {
120 loadGISEditor(value, field, type, input_name, token);
123 script.src = 'js/openlayers/OpenLayers.js';
124 head.appendChild(script);
126 gisEditorLoaded = true;
130 * Loads the GIS editor via AJAX
132 * @param value current value of the geometry field
133 * @param field field name
134 * @param type geometry type
135 * @param input_name name of the input field
138 function loadGISEditor(value, field, type, input_name, token) {
140 var $gis_editor = $("#gis_editor");
141 $.post('gis_data_editor.php', {
145 'input_name' : input_name,
146 'get_gis_editor' : true,
149 if (data.success == true) {
150 $gis_editor.html(data.gis_editor);
151 initGISEditorVisualization();
154 PMA_ajaxShowMessage(data.error);
160 * Opens up the dialog for the GIS data editor.
162 function openGISEditor() {
165 var windowWidth = document.documentElement.clientWidth;
166 var windowHeight = document.documentElement.clientHeight;
167 var popupWidth = windowWidth * 0.9;
168 var popupHeight = windowHeight * 0.9;
169 var popupOffsetTop = windowHeight / 2 - popupHeight / 2;
170 var popupOffsetLeft = windowWidth / 2 - popupWidth / 2;
172 var $gis_editor = $("#gis_editor");
173 var $backgrouond = $("#popup_background");
175 $gis_editor.css({"top": popupOffsetTop, "left": popupOffsetLeft, "width": popupWidth, "height": popupHeight});
176 $backgrouond.css({"opacity":"0.7"});
178 $gis_editor.append('<div id="gis_data_editor"><img class="ajaxIcon" id="loadingMonitorIcon" src="'
179 + pmaThemeImage + 'ajax_clock_small.gif" alt=""></div>'
183 $backgrouond.fadeIn("fast");
184 $gis_editor.fadeIn("fast");
188 * Prepare and insert the GIS data in Well Known Text format
189 * to the input field.
191 function insertDataAndClose() {
192 var $form = $('form#gis_data_editor_form');
193 var input_name = $form.find("input[name='input_name']").val();
195 $.post('gis_data_editor.php', $form.serialize() + "&generate=true", function(data) {
196 if(data.success == true) {
197 $("input[name='" + input_name + "']").val(data.result);
199 PMA_ajaxShowMessage(data.error);
205 $(document).ready(function() {
207 // Remove the class that is added due to the URL being too long.
208 $('.open_gis_editor a').removeClass('formLinkSubmit');
211 * Prepares and insert the GIS data to the input field on clicking 'copy'.
213 $("input[name='gis_data[save]']").live('click', function(event) {
214 event.preventDefault();
215 insertDataAndClose();
219 * Prepares and insert the GIS data to the input field on pressing 'enter'.
221 $('#gis_editor').live('submit', function(event) {
222 event.preventDefault();
223 insertDataAndClose();
227 * Trigger asynchronous calls on data change and update the output.
229 $('#gis_editor').find("input[type='text']").live('change', function() {
230 var $form = $('form#gis_data_editor_form');
231 $.post('gis_data_editor.php', $form.serialize() + "&generate=true", function(data) {
232 if(data.success == true) {
233 $('#gis_data_textarea').val(data.result);
234 $('#placeholder').empty().removeClass('hasSVG').html(data.visualization);
235 $('#openlayersmap').empty();
236 eval(data.openLayers);
237 initGISEditorVisualization();
239 PMA_ajaxShowMessage(data.error);
245 * Update the form on change of the GIS type.
247 $(".gis_type").live('change', function(event) {
248 var $gis_editor = $("#gis_editor");
249 var $form = $('form#gis_data_editor_form');
251 $.post('gis_data_editor.php', $form.serialize() + "&get_gis_editor=true", function(data) {
252 if(data.success == true) {
253 $gis_editor.html(data.gis_editor);
254 initGISEditorVisualization();
257 PMA_ajaxShowMessage(data.error);
263 * Handles closing of the GIS data editor.
265 $('.close_gis_editor, .cancel_gis_editor').live('click', function() {
270 * Handles adding data points
272 $('.addJs.addPoint').live('click', function() {
274 var name = $a.attr('name');
275 // Eg. name = gis_data[0][MULTIPOINT][add_point] => prefix = gis_data[0][MULTIPOINT]
276 var prefix = name.substr(0, name.length - 11);
277 // Find the number of points
278 var $noOfPointsInput = $("input[name='" + prefix + "[no_of_points]" + "']");
279 var noOfPoints = parseInt($noOfPointsInput.attr('value'));
280 // Add the new data point
281 var html = addDataPoint(noOfPoints, prefix);
283 $noOfPointsInput.attr('value', noOfPoints + 1);
287 * Handles adding linestrings and inner rings
289 $('.addLine.addJs').live('click', function() {
291 var name = $a.attr('name');
293 // Eg. name = gis_data[0][MULTILINESTRING][add_line] => prefix = gis_data[0][MULTILINESTRING]
294 var prefix = name.substr(0, name.length - 10);
295 var type = prefix.slice(prefix.lastIndexOf('[') + 1, prefix.lastIndexOf(']'));
297 // Find the number of lines
298 var $noOfLinesInput = $("input[name='" + prefix + "[no_of_lines]" + "']");
299 var noOfLines = parseInt($noOfLinesInput.attr('value'));
301 // Add the new linesting of inner ring based on the type
303 if (type == 'MULTILINESTRING') {
304 html += PMA_messages['strLineString'] + (noOfLines + 1) + ':';
307 html += PMA_messages['strInnerRing'] + noOfLines + ':';
310 html += '<input type="hidden" name="' + prefix + '[' + noOfLines + '][no_of_points]" value="' + noOfPoints + '">';
311 for (i = 0; i < noOfPoints; i++) {
312 html += addDataPoint(i, (prefix + '[' + noOfLines + ']'));
314 html += '<a class="addPoint addJs" name="' + prefix + '[' + noOfLines + '][add_point]">+ '
315 + PMA_messages['strAddPoint'] + '</a><br>';
318 $noOfLinesInput.attr('value', noOfLines + 1);
322 * Handles adding polygons
324 $('.addJs.addPolygon').live('click', function() {
326 var name = $a.attr('name');
327 // Eg. name = gis_data[0][MULTIPOLYGON][add_polygon] => prefix = gis_data[0][MULTIPOLYGON]
328 var prefix = name.substr(0, name.length - 13);
329 // Find the number of polygons
330 var $noOfPolygonsInput = $("input[name='" + prefix + "[no_of_polygons]" + "']");
331 var noOfPolygons = parseInt($noOfPolygonsInput.attr('value'));
333 // Add the new polygon
334 var html = PMA_messages['strPolygon'] + (noOfPolygons + 1) + ':<br>';
335 html += '<input type="hidden" name="' + prefix + '[' + noOfPolygons + '][no_of_lines]" value="1">';
336 + '<br>' + PMA_messages['strOuterRing'] + ':';
337 + '<input type="hidden" name="' + prefix + '[' + noOfPolygons + '][0][no_of_points]" value="4">';
338 for (i = 0; i < 4; i++) {
339 html += addDataPoint(i, (prefix + '[' + noOfPolygons + '][0]'));
341 html += '<a class="addPoint addJs" name="' + prefix + '[' + noOfPolygons + '][0][add_point]">+ '
342 + PMA_messages['strAddPoint'] + '</a><br>'
343 + '<a class="addLine addJs" name="' + prefix + '[' + noOfPolygons + '][add_line]">+ '
344 + PMA_messages['strAddInnerRing'] + '</a><br><br>';
347 $noOfPolygonsInput.attr('value', noOfPolygons + 1);
351 * Handles adding geoms
353 $('.addJs.addGeom').live('click', function() {
355 var prefix = 'gis_data[GEOMETRYCOLLECTION]';
356 // Find the number of geoms
357 var $noOfGeomsInput = $("input[name='" + prefix + "[geom_count]" + "']");
358 var noOfGeoms = parseInt($noOfGeomsInput.attr('value'));
360 var html1 = PMA_messages['strGeometry'] + (noOfGeoms + 1) + ':<br>';
361 var $geomType = $("select[name='gis_data[" + (noOfGeoms - 1) + "][gis_type]']").clone();
362 $geomType.attr('name', 'gis_data[' + noOfGeoms + '][gis_type]').val('POINT');
363 var html2 = '<br>' + PMA_messages['strPoint'] + ' :'
364 + '<label for="x"> ' + PMA_messages['strX'] + ' </label>'
365 + '<input type="text" name="gis_data[' + noOfGeoms + '][POINT][x]" value="">'
366 + '<label for="y"> ' + PMA_messages['strY'] + ' </label>'
367 + '<input type="text" name="gis_data[' + noOfGeoms + '][POINT][y]" value="">'
370 $a.before(html1); $geomType.insertBefore($a); $a.before(html2);
371 $noOfGeomsInput.attr('value', noOfGeoms + 1);