ScriptFormatter.js [plain text]
WebInspector.Formatter = function()
{
}
WebInspector.Formatter.createFormatter = function(contentType)
{
if (contentType === WebInspector.resourceTypes.Script || contentType === WebInspector.resourceTypes.Document)
return new WebInspector.ScriptFormatter();
return new WebInspector.IdentityFormatter();
}
WebInspector.Formatter.locationToPosition = function(lineEndings, lineNumber, columnNumber)
{
var position = lineNumber ? lineEndings[lineNumber - 1] + 1 : 0;
return position + columnNumber;
}
WebInspector.Formatter.positionToLocation = function(lineEndings, position)
{
var lineNumber = lineEndings.upperBound(position - 1);
if (!lineNumber)
var columnNumber = position;
else
var columnNumber = position - lineEndings[lineNumber - 1] - 1;
return [lineNumber, columnNumber];
}
WebInspector.Formatter.prototype = {
formatContent: function(mimeType, content, callback)
{
}
}
WebInspector.ScriptFormatter = function()
{
this._tasks = [];
}
WebInspector.ScriptFormatter.prototype = {
formatContent: function(mimeType, content, callback)
{
content = content.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, '');
const method = "format";
var parameters = { mimeType: mimeType, content: content, indentString: WebInspector.settings.textEditorIndent.get() };
this._tasks.push({ data: parameters, callback: callback });
this._worker.postMessage({ method: method, params: parameters });
},
_didFormatContent: function(event)
{
var task = this._tasks.shift();
var originalContent = task.data.content;
var formattedContent = event.data.content;
var mapping = event.data["mapping"];
var sourceMapping = new WebInspector.FormatterSourceMappingImpl(originalContent.lineEndings(), formattedContent.lineEndings(), mapping);
task.callback(formattedContent, sourceMapping);
},
get _worker()
{
if (!this._cachedWorker) {
this._cachedWorker = new Worker("ScriptFormatterWorker.js");
this._cachedWorker.onmessage = (this._didFormatContent.bind(this));
}
return this._cachedWorker;
}
}
WebInspector.IdentityFormatter = function()
{
this._tasks = [];
}
WebInspector.IdentityFormatter.prototype = {
formatContent: function(mimeType, content, callback)
{
callback(content, new WebInspector.IdentityFormatterSourceMapping());
}
}
WebInspector.FormatterMappingPayload = function()
{
this.original = [];
this.formatted = [];
}
WebInspector.FormatterSourceMapping = function()
{
}
WebInspector.FormatterSourceMapping.prototype = {
originalToFormatted: function(lineNumber, columnNumber) { },
formattedToOriginal: function(lineNumber, columnNumber) { }
}
WebInspector.IdentityFormatterSourceMapping = function()
{
}
WebInspector.IdentityFormatterSourceMapping.prototype = {
originalToFormatted: function(lineNumber, columnNumber)
{
return [lineNumber, columnNumber || 0];
},
formattedToOriginal: function(lineNumber, columnNumber)
{
return [lineNumber, columnNumber || 0];
}
}
WebInspector.FormatterSourceMappingImpl = function(originalLineEndings, formattedLineEndings, mapping)
{
this._originalLineEndings = originalLineEndings;
this._formattedLineEndings = formattedLineEndings;
this._mapping = mapping;
}
WebInspector.FormatterSourceMappingImpl.prototype = {
originalToFormatted: function(lineNumber, columnNumber)
{
var originalPosition = WebInspector.Formatter.locationToPosition(this._originalLineEndings, lineNumber, columnNumber || 0);
var formattedPosition = this._convertPosition(this._mapping.original, this._mapping.formatted, originalPosition || 0);
return WebInspector.Formatter.positionToLocation(this._formattedLineEndings, formattedPosition);
},
formattedToOriginal: function(lineNumber, columnNumber)
{
var formattedPosition = WebInspector.Formatter.locationToPosition(this._formattedLineEndings, lineNumber, columnNumber || 0);
var originalPosition = this._convertPosition(this._mapping.formatted, this._mapping.original, formattedPosition);
return WebInspector.Formatter.positionToLocation(this._originalLineEndings, originalPosition || 0);
},
_convertPosition: function(positions1, positions2, position)
{
var index = positions1.upperBound(position) - 1;
var convertedPosition = positions2[index] + position - positions1[index];
if (index < positions2.length - 1 && convertedPosition > positions2[index + 1])
convertedPosition = positions2[index + 1];
return convertedPosition;
}
}