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/* globals $ */
var smapi = smapi || {};
/**
* Manages the logic for line range selections.
* @param {int} maxLines The maximum number of lines in the content.
*/
smapi.LineNumberRange = function (maxLines) {
var self = this;
/**
* @var {int} minLine The first line in the selection, or null if no lines selected.
*/
self.minLine = null;
/**
* @var {int} maxLine The last line in the selection, or null if no lines selected.
*/
self.maxLine = null;
/**
* Parse line numbers from a URL hash.
* @param {string} hash the URL hash to parse.
*/
self.parseFromUrlHash = function (hash) {
self.minLine = null;
self.maxLine = null;
// parse hash
var hashParts = hash.match(/^#L(\d+)(?:-L(\d+))?$/);
if (!hashParts || hashParts.length <= 1)
return;
// extract min/max lines
self.minLine = parseInt(hashParts[1]);
self.maxLine = parseInt(hashParts[2]) || self.minLine;
};
/**
* Generate a URL hash for the current line range.
* @returns {string} The generated URL hash.
*/
self.buildHash = function() {
if (!self.minLine)
return "";
else if (self.minLine === self.maxLine)
return "#L" + self.minLine;
else
return "#L" + self.minLine + "-L" + self.maxLine;
}
/**
* Get a list of all selected lines.
* @returns {Array<int>} The selected line numbers.
*/
self.getLinesSelected = function() {
// format
if (!self.minLine)
return [];
var lines = [];
for (var i = self.minLine; i <= self.maxLine; i++)
lines.push(i);
return lines;
};
return self;
};
/**
* UI logic for the JSON validator page.
* @param {string} urlFormat The URL format for a file, with $schemaName and $id placeholders.
* @param {string} pasteID The Pastebin paste ID for the content being viewed, if any.
*/
smapi.jsonValidator = function (urlFormat, pasteID) {
/**
* The original content element.
*/
var originalContent = $("#raw-content").clone();
/**
* The currently highlighted lines.
*/
var selection = new smapi.LineNumberRange();
/**
* Rebuild the syntax-highlighted element.
*/
var formatCode = function () {
// reset if needed
$(".sunlight-container").replaceWith(originalContent.clone());
// apply default highlighting
Sunlight.highlightAll({
lineHighlight: selection.getLinesSelected()
});
// fix line links
$(".sunlight-line-number-margin a").each(function() {
var link = $(this);
var lineNumber = parseInt(link.text());
link
.attr("id", "L" + lineNumber)
.attr("href", "#L" + lineNumber)
.removeAttr("name")
.data("line-number", lineNumber);
});
};
/**
* Scroll the page so the selected range is visible.
*/
var scrollToRange = function() {
if (!selection.minLine)
return;
var targetLine = Math.max(1, selection.minLine - 5);
$("#L" + targetLine).get(0).scrollIntoView();
};
/**
* Initialize the JSON validator page.
*/
var init = function () {
// set initial code formatting
selection.parseFromUrlHash(location.hash);
formatCode();
scrollToRange();
// update code formatting on hash change
$(window).on("hashchange", function() {
selection.parseFromUrlHash(location.hash);
formatCode();
scrollToRange();
});
// change format
$("#output #format").on("change", function() {
var schemaName = $(this).val();
location.href = urlFormat.replace("$schemaName", schemaName).replace("$id", pasteID);
});
// upload form
var submit = $("#submit");
var input = $("#input");
if (input.length) {
// disable submit if it's empty
var toggleSubmit = function () {
var hasText = !!input.val().trim();
submit.prop("disabled", !hasText);
};
input.on("input", toggleSubmit);
toggleSubmit();
// drag & drop file
input.on({
'dragover dragenter': function (e) {
e.preventDefault();
e.stopPropagation();
},
'drop': function (e) {
var dataTransfer = e.originalEvent.dataTransfer;
if (dataTransfer && dataTransfer.files.length) {
e.preventDefault();
e.stopPropagation();
var file = dataTransfer.files[0];
var reader = new FileReader();
reader.onload = $.proxy(function (file, $input, event) {
$input.val(event.target.result);
toggleSubmit();
}, this, file, $("#input"));
reader.readAsText(file);
}
}
});
}
};
init();
};
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