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/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
(function () {
// By default CodeMirror defines syntax highlighting styles based on token
// only and shared styles between modes. This limiting and does not match
// what we have done in the Web Inspector. So this modifies the XML, CSS
// and JavaScript modes to supply two styles for each token. One for the
// token and one with the mode name.
function tokenizeLinkString(stream, state)
{
console.assert(state._linkQuoteCharacter !== undefined);
// Eat the string until the same quote is found that started the string.
// If this is unquoted, then eat until whitespace or common parse errors.
if (state._linkQuoteCharacter)
stream.eatWhile(new RegExp("[^" + state._linkQuoteCharacter + "]"));
else
stream.eatWhile(/[^\s\u00a0=<>\"\']/);
// If the stream isn't at the end of line then we found the end quote.
// In the case, change _linkTokenize to parse the end of the link next.
// Otherwise _linkTokenize will stay as-is to parse more of the link.
if (!stream.eol())
state._linkTokenize = tokenizeEndOfLinkString;
return "link";
}
function tokenizeEndOfLinkString(stream, state)
{
console.assert(state._linkQuoteCharacter !== undefined);
console.assert(state._linkBaseStyle);
// Eat the quote character to style it with the base style.
if (state._linkQuoteCharacter)
stream.eat(state._linkQuoteCharacter);
var style = state._linkBaseStyle;
// Clean up the state.
delete state._linkTokenize;
delete state._linkQuoteCharacter;
delete state._linkBaseStyle;
delete state._srcSetTokenizeState;
return style;
}
function tokenizeSrcSetString(stream, state)
{
console.assert(state._linkQuoteCharacter !== undefined);
if (state._srcSetTokenizeState === "link") {
// Eat the string until a space, comma, or ending quote.
// If this is unquoted, then eat until whitespace or common parse errors.
if (state._linkQuoteCharacter)
stream.eatWhile(new RegExp("[^\\s," + state._linkQuoteCharacter + "]"));
else
stream.eatWhile(/[^\s,\u00a0=<>\"\']/);
} else {
// Eat the string until a comma, or ending quote.
// If this is unquoted, then eat until whitespace or common parse errors.
stream.eatSpace();
if (state._linkQuoteCharacter)
stream.eatWhile(new RegExp("[^," + state._linkQuoteCharacter + "]"));
else
stream.eatWhile(/[^\s\u00a0=<>\"\']/);
stream.eatWhile(/[\s,]/);
}
// If the stream isn't at the end of line and we found the end quote
// change _linkTokenize to parse the end of the link next. Otherwise
// _linkTokenize will stay as-is to parse more of the srcset.
if (stream.eol() || (!state._linkQuoteCharacter || stream.peek() === state._linkQuoteCharacter))
state._linkTokenize = tokenizeEndOfLinkString;
// Link portion.
if (state._srcSetTokenizeState === "link") {
state._srcSetTokenizeState = "descriptor";
return "link";
}
// Descriptor portion.
state._srcSetTokenizeState = "link";
return state._linkBaseStyle;
}
function extendedXMLToken(stream, state)
{
if (state._linkTokenize) {
// Call the link tokenizer instead.
var style = state._linkTokenize(stream, state);
return style && (style + " m-" + this.name);
}
// Remember the start position so we can rewind if needed.
var startPosition = stream.pos;
var style = this._token(stream, state);
if (style === "attribute") {
// Look for "href" or "src" attributes. If found then we should
// expect a string later that should get the "link" style instead.
var text = stream.current().toLowerCase();
if (text === "src" || /\bhref\b/.test(text))
state._expectLink = true;
else if (text === "srcset")
state._expectSrcSet = true;
else {
delete state._expectLink;
delete state._expectSrcSet;
}
} else if (state._expectLink && style === "string") {
var current = stream.current();
// Unless current token is empty quotes, consume quote character
// and tokenize link next.
if (current !== "\"\"" && current !== "''") {
delete state._expectLink;
// This is a link, so setup the state to process it next.
state._linkTokenize = tokenizeLinkString;
state._linkBaseStyle = style;
// The attribute may or may not be quoted.
var quote = current[0];
state._linkQuoteCharacter = quote === "'" || quote === "\"" ? quote : null;
// Rewind the stream to the start of this token.
stream.pos = startPosition;
// Eat the open quote of the string so the string style
// will be used for the quote character.
if (state._linkQuoteCharacter)
stream.eat(state._linkQuoteCharacter);
}
} else if (state._expectSrcSet && style === "string") {
var current = stream.current();
// Unless current token is empty quotes, consume quote character
// and tokenize link next.
if (current !== "\"\"" && current !== "''") {
delete state._expectSrcSet;
// This is a link, so setup the state to process it next.
state._srcSetTokenizeState = "link";
state._linkTokenize = tokenizeSrcSetString;
state._linkBaseStyle = style;
// The attribute may or may not be quoted.
var quote = current[0];
state._linkQuoteCharacter = quote === "'" || quote === "\"" ? quote : null;
// Rewind the stream to the start of this token.
stream.pos = startPosition;
// Eat the open quote of the string so the string style
// will be used for the quote character.
if (state._linkQuoteCharacter)
stream.eat(state._linkQuoteCharacter);
}
} else if (style) {
// We don't expect other tokens between attribute and string since
// spaces and the equal character are not tokenized. So if we get
// another token before a string then we stop expecting a link.
delete state._expectLink;
delete state._expectSrcSet;
}
return style && (style + " m-" + this.name);
}
function tokenizeCSSURLString(stream, state)
{
console.assert(state._urlQuoteCharacter);
// If we are an unquoted url string, return whitespace blocks as a whitespace token (null).
if (state._unquotedURLString && stream.eatSpace())
return null;
var ch = null;
var escaped = false;
var reachedEndOfURL = false;
var lastNonWhitespace = stream.pos;
var quote = state._urlQuoteCharacter;
// Parse characters until the end of the stream/line or a proper end quote character.
while ((ch = stream.next()) != null) {
if (ch === quote && !escaped) {
reachedEndOfURL = true;
break;
}
escaped = !escaped && ch === "\\";
if (!/[\s\u00a0]/.test(ch))
lastNonWhitespace = stream.pos;
}
// If we are an unquoted url string, do not include trailing whitespace, rewind to the last real character.
if (state._unquotedURLString)
stream.pos = lastNonWhitespace;
// If we have reached the proper the end of the url string, switch to the end tokenizer to reset the state.
if (reachedEndOfURL) {
if (!state._unquotedURLString)
stream.backUp(1);
this._urlTokenize = tokenizeEndOfCSSURLString;
}
return "link";
}
function tokenizeEndOfCSSURLString(stream, state)
{
console.assert(state._urlQuoteCharacter);
console.assert(state._urlBaseStyle);
// Eat the quote character to style it with the base style.
if (!state._unquotedURLString)
stream.eat(state._urlQuoteCharacter);
var style = state._urlBaseStyle;
delete state._urlTokenize;
delete state._urlQuoteCharacter;
delete state._urlBaseStyle;
return style;
}
function extendedCSSToken(stream, state)
{
var hexColorRegex = /#(?:[0-9a-fA-F]{8}|[0-9a-fA-F]{6}|[0-9a-fA-F]{3,4})\b/g;
if (state._urlTokenize) {
// Call the link tokenizer instead.
var style = state._urlTokenize(stream, state);
return style && (style + " m-" + (this.alternateName || this.name));
}
// Remember the start position so we can rewind if needed.
var startPosition = stream.pos;
var style = this._token(stream, state);
if (style) {
if (style === "atom") {
if (stream.current() === "url") {
// If the current text is "url" then we should expect the next string token to be a link.
state._expectLink = true;
} else if (hexColorRegex.test(stream.current()))
style = style + " hex-color";
} else if (state._expectLink) {
delete state._expectLink;
if (style === "string") {
// This is a link, so setup the state to process it next.
state._urlTokenize = tokenizeCSSURLString;
state._urlBaseStyle = style;
// The url may or may not be quoted.
var quote = stream.current()[0];
state._urlQuoteCharacter = quote === "'" || quote === "\"" ? quote : ")";
state._unquotedURLString = state._urlQuoteCharacter === ")";
// Rewind the stream to the start of this token.
stream.pos = startPosition;
// Eat the open quote of the string so the string style
// will be used for the quote character.
if (!state._unquotedURLString)
stream.eat(state._urlQuoteCharacter);
}
}
}
return style && (style + " m-" + (this.alternateName || this.name));
}
function extendedToken(stream, state)
{
// CodeMirror moves the original token function to _token when we extended it.
// So call it to get the style that we will add an additional class name to.
var style = this._token(stream, state);
return style && (style + " m-" + (this.alternateName || this.name));
}
function extendedCSSRuleStartState(base)
{
// CodeMirror moves the original token function to _startState when we extended it.
// So call it to get the original start state that we will modify.
var state = this._startState(base);
// Start off the state stack like it has already parsed a rule. This causes everything
// after to be parsed as properties in a rule.
state.state = "block";
state.context.type = "block";
return state;
}
function scrollCursorIntoView(codeMirror, event)
{
// We don't want to use the default implementation since it can cause massive jumping
// when the editor is contained inside overflow elements.
event.preventDefault();
function delayedWork()
{
// Don't try to scroll unless the editor is focused.
if (!codeMirror.getWrapperElement().classList.contains("CodeMirror-focused"))
return;
// The cursor element can contain multiple cursors. The first one is the blinky cursor,
// which is the one we want to scroll into view. It can be missing, so check first.
var cursorElement = codeMirror.getScrollerElement().getElementsByClassName("CodeMirror-cursor")[0];
if (cursorElement)
cursorElement.scrollIntoViewIfNeeded(false);
}
// We need to delay this because CodeMirror can fire scrollCursorIntoView as a view is being blurred
// and another is being focused. The blurred editor still has the focused state when this event fires.
// We don't want to scroll the blurred editor into view, only the focused editor.
setTimeout(delayedWork, 0);
}
CodeMirror.extendMode("css", {token: extendedCSSToken});
CodeMirror.extendMode("xml", {token: extendedXMLToken});
CodeMirror.extendMode("javascript", {token: extendedToken});
CodeMirror.defineMode("css-rule", CodeMirror.modes.css);
CodeMirror.extendMode("css-rule", {token: extendedCSSToken, startState: extendedCSSRuleStartState, alternateName: "css"});
CodeMirror.defineInitHook(function(codeMirror) {
codeMirror.on("scrollCursorIntoView", scrollCursorIntoView);
});
const maximumNeighboringWhitespaceCharacters = 16;
CodeMirror.defineOption("showWhitespaceCharacters", false, function(cm, value, old) {
if (!value || (old && old !== CodeMirror.Init)) {
cm.removeOverlay("whitespace");
return;
}
cm.addOverlay({
name: "whitespace",
token(stream) {
if (stream.peek() === " ") {
let count = 0;
while (count < maximumNeighboringWhitespaceCharacters && stream.peek() === " ") {
++count;
stream.next();
}
return `whitespace whitespace-${count}`;
}
while (!stream.eol() && stream.peek() !== " ")
stream.next();
return null;
}
});
});
CodeMirror.defineExtension("hasLineClass", function(line, where, className) {
// This matches the arguments to addLineClass and removeLineClass.
var classProperty = where === "text" ? "textClass" : (where === "background" ? "bgClass" : "wrapClass");
var lineInfo = this.lineInfo(line);
if (!lineInfo)
return false;
if (!lineInfo[classProperty])
return false;
// Test for the simple case.
if (lineInfo[classProperty] === className)
return true;
// Do a quick check for the substring. This is faster than a regex, which requires escaping the input first.
var index = lineInfo[classProperty].indexOf(className);
if (index === -1)
return false;
// Check that it is surrounded by spaces. Add padding spaces first to work with beginning and end of string cases.
var paddedClass = " " + lineInfo[classProperty] + " ";
return paddedClass.indexOf(" " + className + " ", index) !== -1;
});
CodeMirror.defineExtension("setUniqueBookmark", function(position, options) {
var marks = this.findMarksAt(position);
for (var i = 0; i < marks.length; ++i) {
if (marks[i].__uniqueBookmark) {
marks[i].clear();
break;
}
}
var uniqueBookmark = this.setBookmark(position, options);
uniqueBookmark.__uniqueBookmark = true;
return uniqueBookmark;
});
CodeMirror.defineExtension("toggleLineClass", function(line, where, className) {
if (this.hasLineClass(line, where, className)) {
this.removeLineClass(line, where, className);
return false;
}
this.addLineClass(line, where, className);
return true;
});
CodeMirror.defineExtension("alterNumberInRange", function(amount, startPosition, endPosition, updateSelection) {
// We don't try if the range is multiline, pass to another key handler.
if (startPosition.line !== endPosition.line)
return false;
if (updateSelection) {
// Remember the cursor position/selection.
var selectionStart = this.getCursor("start");
var selectionEnd = this.getCursor("end");
}
var line = this.getLine(startPosition.line);
var foundPeriod = false;
var start = NaN;
var end = NaN;
for (var i = startPosition.ch; i >= 0; --i) {
var character = line.charAt(i);
if (character === ".") {
if (foundPeriod)
break;
foundPeriod = true;
} else if (character !== "-" && character !== "+" && isNaN(parseInt(character))) {
// Found the end already, just scan backwards.
if (i === startPosition.ch) {
end = i;
continue;
}
break;
}
start = i;
}
if (isNaN(end)) {
for (var i = startPosition.ch + 1; i < line.length; ++i) {
var character = line.charAt(i);
if (character === ".") {
if (foundPeriod) {
end = i;
break;
}
foundPeriod = true;
} else if (isNaN(parseInt(character))) {
end = i;
break;
}
end = i + 1;
}
}
// No number range found, pass to another key handler.
if (isNaN(start) || isNaN(end))
return false;
var number = parseFloat(line.substring(start, end));
// Make the new number and constrain it to a precision of 6, this matches numbers the engine returns.
// Use the Number constructor to forget the fixed precision, so 1.100000 will print as 1.1.
var alteredNumber = Number((number + amount).toFixed(6));
var alteredNumberString = alteredNumber.toString();
var from = {line: startPosition.line, ch: start};
var to = {line: startPosition.line, ch: end};
this.replaceRange(alteredNumberString, from, to);
if (updateSelection) {
var previousLength = to.ch - from.ch;
var newLength = alteredNumberString.length;
// Fix up the selection so it follows the increase or decrease in the replacement length.
// selectionStart/End may the same object if there is no selection. If that is the case
// make only one modification to prevent a double adjustment, and keep it a single object
// to avoid CodeMirror inadvertently creating an actual selection range.
let diff = newLength - previousLength;
if (selectionStart === selectionEnd)
selectionStart.ch += diff;
else {
if (selectionStart.ch > from.ch)
selectionStart.ch += diff;
if (selectionEnd.ch > from.ch)
selectionEnd.ch += diff;
}
this.setSelection(selectionStart, selectionEnd);
}
return true;
});
function alterNumber(amount, codeMirror)
{
function findNumberToken(position)
{
// CodeMirror includes the unit in the number token, so searching for
// number tokens is the best way to get both the number and unit.
var token = codeMirror.getTokenAt(position);
if (token && token.type && /\bnumber\b/.test(token.type))
return token;
return null;
}
var position = codeMirror.getCursor("head");
var token = findNumberToken(position);
if (!token) {
// If the cursor is at the outside beginning of the token, the previous
// findNumberToken wont find it. So check the next column for a number too.
position.ch += 1;
token = findNumberToken(position);
}
if (!token)
return CodeMirror.Pass;
var foundNumber = codeMirror.alterNumberInRange(amount, {ch: token.start, line: position.line}, {ch: token.end, line: position.line}, true);
if (!foundNumber)
return CodeMirror.Pass;
}
CodeMirror.defineExtension("rectsForRange", function(range) {
var lineRects = [];
for (var line = range.start.line; line <= range.end.line; ++line) {
var lineContent = this.getLine(line);
var startChar = line === range.start.line ? range.start.ch : (lineContent.length - lineContent.trimLeft().length);
var endChar = line === range.end.line ? range.end.ch : lineContent.length;
var firstCharCoords = this.cursorCoords({ch: startChar, line});
var endCharCoords = this.cursorCoords({ch: endChar, line});
// Handle line wrapping.
if (firstCharCoords.bottom !== endCharCoords.bottom) {
var maxY = -Number.MAX_VALUE;
for (var ch = startChar; ch <= endChar; ++ch) {
var coords = this.cursorCoords({ch, line});
if (coords.bottom > maxY) {
if (ch > startChar) {
var maxX = Math.ceil(this.cursorCoords({ch: ch - 1, line}).right);
lineRects.push(new WI.Rect(minX, minY, maxX - minX, maxY - minY));
}
var minX = Math.floor(coords.left);
var minY = Math.floor(coords.top);
maxY = Math.ceil(coords.bottom);
}
}
maxX = Math.ceil(coords.right);
lineRects.push(new WI.Rect(minX, minY, maxX - minX, maxY - minY));
} else {
var minX = Math.floor(firstCharCoords.left);
var minY = Math.floor(firstCharCoords.top);
var maxX = Math.ceil(endCharCoords.right);
var maxY = Math.ceil(endCharCoords.bottom);
lineRects.push(new WI.Rect(minX, minY, maxX - minX, maxY - minY));
}
}
return lineRects;
});
let mac = WI.Platform.name === "mac";
CodeMirror.keyMap["default"] = {
"Alt-Up": alterNumber.bind(null, 1),
"Ctrl-Alt-Up": alterNumber.bind(null, 0.1),
"Shift-Alt-Up": alterNumber.bind(null, 10),
"Alt-PageUp": alterNumber.bind(null, 10),
"Shift-Alt-PageUp": alterNumber.bind(null, 100),
"Alt-Down": alterNumber.bind(null, -1),
"Ctrl-Alt-Down": alterNumber.bind(null, -0.1),
"Shift-Alt-Down": alterNumber.bind(null, -10),
"Alt-PageDown": alterNumber.bind(null, -10),
"Shift-Alt-PageDown": alterNumber.bind(null, -100),
"Cmd-/": "toggleComment",
"Cmd-D": "selectNextOccurrence",
"Shift-Tab": "indentLess",
fallthrough: mac ? "macDefault" : "pcDefault"
};
// Register some extra MIME-types for CodeMirror. These are in addition to the
// ones CodeMirror already registers, like text/html, text/javascript, etc.
var extraXMLTypes = ["text/xml", "text/xsl"];
extraXMLTypes.forEach(function(type) {
CodeMirror.defineMIME(type, "xml");
});
var extraHTMLTypes = ["application/xhtml+xml", "image/svg+xml"];
extraHTMLTypes.forEach(function(type) {
CodeMirror.defineMIME(type, "htmlmixed");
});
var extraJavaScriptTypes = ["text/ecmascript", "application/javascript", "application/ecmascript", "application/x-javascript",
"text/x-javascript", "text/javascript1.1", "text/javascript1.2", "text/javascript1.3", "text/jscript", "text/livescript"];
extraJavaScriptTypes.forEach(function(type) {
CodeMirror.defineMIME(type, "javascript");
});
var extraJSONTypes = ["application/x-json", "text/x-json", "application/vnd.api+json"];
extraJSONTypes.forEach(function(type) {
CodeMirror.defineMIME(type, {name: "javascript", json: true});
});
})();
WI.compareCodeMirrorPositions = function(a, b)
{
var lineCompare = a.line - b.line;
if (lineCompare !== 0)
return lineCompare;
var aColumn = "ch" in a ? a.ch : Number.MAX_VALUE;
var bColumn = "ch" in b ? b.ch : Number.MAX_VALUE;
return aColumn - bColumn;
};
WI.walkTokens = function(cm, mode, initialPosition, callback)
{
let state = CodeMirror.copyState(mode, cm.getTokenAt(initialPosition).state);
if (state.localState)
state = state.localState;
let lineCount = cm.lineCount();
let abort = false;
for (let lineNumber = initialPosition.line; !abort && lineNumber < lineCount; ++lineNumber) {
let line = cm.getLine(lineNumber);
let stream = new CodeMirror.StringStream(line);
if (lineNumber === initialPosition.line)
stream.start = stream.pos = initialPosition.ch;
while (!stream.eol()) {
let tokenType = mode.token(stream, state);
if (!callback(tokenType, stream.current())) {
abort = true;
break;
}
stream.start = stream.pos;
}
}
if (!abort)
callback(null);
};
WI.tokenizeCSSValue = function(cssValue)
{
const rulePrefix = "*{X:";
let cssRule = rulePrefix + cssValue + "}";
let tokens = [];
let mode = CodeMirror.getMode({indentUnit: 0}, "text/css");
let state = CodeMirror.startState(mode);
let stream = new CodeMirror.StringStream(cssRule);
function processToken(token, tokenType, column) {
if (column < rulePrefix.length)
return;
if (token === "}" && !tokenType)
return;
tokens.push({value: token, type: tokenType});
}
while (!stream.eol()) {
let style = mode.token(stream, state);
let value = stream.current();
processToken(value, style, stream.start);
stream.start = stream.pos;
}
return tokens;
};