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Update text preview.

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This commit is contained in:
Lars Jung 2015-05-17 00:16:31 +02:00
parent 04d9296733
commit 09fa3acc4d
1 changed files with 86 additions and 68 deletions
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154
src/_h5ai/public/js/inc/ext/preview-txt.js
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@ -6,90 +6,108 @@ modulejs.define('ext/preview-txt', ['_', '$', 'marked', 'prism', 'core/event', '
}, allsettings['preview-txt']);
var templateText = '<pre id="pv-txt-text" class="highlighted"/>';
var templateMarkdown = '<div id="pv-txt-text" class="markdown"/>';
var spinnerThreshold = 200;
var spinnerTimeoutId;
var currentItems;
var currentIdx;
var currentItem;
function preloadText(absHref, callback) {
function preloadText(item, callback) {
$.ajax({
url: absHref,
url: item.absHref,
dataType: 'text'
})
.done(function (content) {
callback(content);
// setTimeout(function () { callback(content); }, 1000); // for testing
// callback(item, content);
// for testing
setTimeout(function () { callback(item, content); }, 1000);
})
.fail(function (jqXHR, textStatus) {
callback('[ajax error] ' + textStatus);
callback(item, '[ajax error] ' + textStatus);
});
}
function onAdjustSize() {
var $content = $('#pv-content');
var $text = $('#pv-txt-text');
if ($text.length) {
$text.height($content.height() - 16);
}
}
function onIdxChange(rel) {
currentIdx = (currentIdx + rel + currentItems.length) % currentItems.length;
currentItem = currentItems[currentIdx];
preview.setLabels([
currentItem.label,
String(currentItem.size) + ' bytes'
]);
preview.setIndex(currentIdx + 1, currentItems.length);
preview.setRawLink(currentItem.absHref);
$('#pv-content').hide();
if (preview.isSpinnerVisible()) {
preview.showSpinner(true, currentItem.icon);
} else {
clearTimeout(spinnerTimeoutId);
spinnerTimeoutId = setTimeout(function () {
preview.showSpinner(true, currentItem.icon);
}, spinnerThreshold);
}
preloadText(currentItem, function (item, textContent) {
if (item !== currentItem) {
return;
}
var type = settings.types[currentItem.type];
var $text;
var $code;
if (type === 'none') {
$text = $(templateMarkdown).text(textContent);
} else if (type === 'fixed') {
$text = $(templateText).text(textContent);
} else if (type === 'markdown') {
$text = $(templateMarkdown).html(marked(textContent));
} else {
$text = $(templateText);
$code = $('<code/>').appendTo($text);
if (textContent.length < 20000) {
$code.empty().html(prism.highlight(textContent, prism.languages[type]));
} else {
$code.empty().text(textContent);
setTimeout(function () { $code.empty().html(prism.highlight(textContent, prism.languages[type])); }, 300);
}
}
clearTimeout(spinnerTimeoutId);
preview.showSpinner(false);
$('#pv-content')
.empty()
.append($text)
.show();
onAdjustSize();
});
}
function onEnter(items, idx) {
var currentItems = items;
var currentIdx = idx;
var currentItem = items[idx];
function onAdjustSize() {
var $content = $('#pv-content');
var $text = $('#pv-txt-text');
if ($text.length) {
$text.height($content.height() - 16);
}
}
function onIdxChange(rel) {
currentIdx = (currentIdx + rel + currentItems.length) % currentItems.length;
currentItem = currentItems[currentIdx];
var spinnerTimeout = setTimeout(function () { preview.showSpinner(true); }, 200);
preloadText(currentItem.absHref, function (textContent) {
clearTimeout(spinnerTimeout);
preview.showSpinner(false);
$('#pv-content').fadeOut(100, function () {
var type = settings.types[currentItem.type];
var $text;
var $code;
if (type === 'none') {
$text = $(templateMarkdown).text(textContent);
} else if (type === 'fixed') {
$text = $(templateText).text(textContent);
} else if (type === 'markdown') {
$text = $(templateMarkdown).html(marked(textContent));
} else {
$text = $(templateText);
$code = $('<code/>').appendTo($text);
if (textContent.length < 20000) {
$code.empty().html(prism.highlight(textContent, prism.languages[type]));
} else {
$code.empty().text(textContent);
setTimeout(function () { $code.empty().html(prism.highlight(textContent, prism.languages[type])); }, 300);
}
}
$('#pv-content').empty().append($text).fadeIn(200);
onAdjustSize();
preview.setIndex(currentIdx + 1, currentItems.length);
preview.setLabels([
currentItem.label,
String(currentItem.size) + ' bytes'
]);
preview.setRawLink(currentItem.absHref);
});
});
}
currentItems = items;
currentIdx = idx;
currentItem = items[idx];
onIdxChange(0);
preview.setOnIndexChange(onIdxChange);
preview.setOnAdjustSize(onAdjustSize);