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Merge pull request #995 from fredj/export-map_example

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Better user notification if a.download attribute is not supported
This commit is contained in:
Frédéric Junod
2013-09-13 05:11:15 -07:00
parent 60623e3061 77c7d02873
commit 2ce1c29c4d
2 changed files with 20 additions and 7 deletions
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23
examples/export-map.js
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@@ -20,11 +20,20 @@ var map = new ol.Map({
});
var exportJPEGElement = document.getElementById('export-jpeg');
exportJPEGElement.addEventListener('click', function(e) {
e.target.href = map.getRenderer().getCanvas().toDataURL('image/jpeg');
}, false);
var exportPNGElement = document.getElementById('export-png');
exportPNGElement.addEventListener('click', function(e) {
e.target.href = map.getRenderer().getCanvas().toDataURL('image/png');
}, false);
if ('download' in exportJPEGElement && 'download' in exportPNGElement) {
exportJPEGElement.addEventListener('click', function(e) {
e.target.href = map.getRenderer().getCanvas().toDataURL('image/jpeg');
}, false);
exportPNGElement.addEventListener('click', function(e) {
e.target.href = map.getRenderer().getCanvas().toDataURL('image/png');
}, false);
} else {
var info = document.getElementById('no-download');
/**
* display error message
*/
info.style.display = '';
}