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MINOR Only load preview panel if its visible, to avoid unnecessary asset loads and processing. Only refresh edit form view from preview events when its visible.

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This commit is contained in:
Ingo Schommer 2011-12-19 15:06:04 +01:00
parent f1f8dcd24d
commit 11b3b43c84
2 changed files with 14 additions and 3 deletions
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15
admin/javascript/LeftAndMain.Preview.js
View File

@ -37,10 +37,16 @@
this.find('iframe').addClass('center');
this.find('iframe').bind('load', function() {
self._fixIframeLinks();
self.loadCurrentPage();
// Load edit view for new page, but only if the preview is activated at the moment.
// This avoids e.g. force-redirections of the edit view on RedirectorPage instances.
if(!self.is('.is-collapsed')) self.loadCurrentPage();
});
var updateAfterXhr = function() {
// Only load when panel is visible (see details in iframe load event handler).
if(self.is('.is-collapsed')) return;
// var url = ui.xmlhttp.getResponseHeader('x-frontend-url');
var url = $('.cms-edit-form').find(':input[name=StageURLSegment]').val();
if(url) {
@ -241,7 +247,12 @@
onclick: function(e) {
e.preventDefault();
$('.cms-preview').toggle();
var preview = $('.cms-preview'), url = $('.cms-edit-form').find(':input[name=StageURLSegment]').val();
if(url) {
preview.loadUrl(url);
preview.unblock();
preview.toggle();
}
}
});
});

2
admin/templates/LeftAndMain.ss
View File

@ -17,7 +17,7 @@
$Content
<div class="cms-preview east <% if IsPreviewExpanded %>is-expanded<% else %>is-collapsed<% end_if %>" data-layout="{type: 'border'}">
<iframe src="<% if $PreviewLink %>$PreviewLink<% else %>about:blank<% end_if %>" class="center"></iframe>
<iframe src="about:blank" class="center"></iframe>
<div class="cms-preview-controls south"></div>
</div>