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snippets.js
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"use strict";
/**
* @typedef Snippet
* @property {string} [content]
* @property {string} [replaceBefore]
* @property {string} [replaceAfter]
* @property {RegExp} [startRe]
* @property {RegExp} [endRe]
* @property {RegExp} [triggerRe]
* @property {RegExp} [endTriggerRe]
* @property {string} [trigger]
* @property {string} [endTrigger]
* @property {string[]} [matchBefore]
* @property {string[]} [matchAfter]
* @property {string} [name]
* @property {string} [tabTrigger]
* @property {string} [guard]
* @property {string} [endGuard]
*/
var dom = require("./lib/dom");
var oop = require("./lib/oop");
var EventEmitter = require("./lib/event_emitter").EventEmitter;
var lang = require("./lib/lang");
var Range = require("./range").Range;
var RangeList = require("./range_list").RangeList;
var HashHandler = require("./keyboard/hash_handler").HashHandler;
var Tokenizer = require("./tokenizer").Tokenizer;
var clipboard = require("./clipboard");
var VARIABLES = {
CURRENT_WORD: function(editor) {
return editor.session.getTextRange(editor.session.getWordRange());
},
SELECTION: function(editor, name, indentation) {
var text = editor.session.getTextRange();
if (indentation)
return text.replace(/\n\r?([ \t]*\S)/g, "\n" + indentation + "$1");
return text;
},
CURRENT_LINE: function(editor) {
return editor.session.getLine(editor.getCursorPosition().row);
},
PREV_LINE: function(editor) {
return editor.session.getLine(editor.getCursorPosition().row - 1);
},
LINE_INDEX: function(editor) {
return editor.getCursorPosition().row;
},
LINE_NUMBER: function(editor) {
return editor.getCursorPosition().row + 1;
},
SOFT_TABS: function(editor) {
return editor.session.getUseSoftTabs() ? "YES" : "NO";
},
TAB_SIZE: function(editor) {
return editor.session.getTabSize();
},
CLIPBOARD: function(editor) {
return clipboard.getText && clipboard.getText();
},
// filenames
FILENAME: function(editor) {
return /[^/\\]*$/.exec(this.FILEPATH(editor))[0];
},
FILENAME_BASE: function(editor) {
return /[^/\\]*$/.exec(this.FILEPATH(editor))[0].replace(/\.[^.]*$/, "");
},
DIRECTORY: function(editor) {
return this.FILEPATH(editor).replace(/[^/\\]*$/, "");
},
FILEPATH: function(editor) { return "/not implemented.txt"; },
WORKSPACE_NAME: function() { return "Unknown"; },
FULLNAME: function() { return "Unknown"; },
// comments
BLOCK_COMMENT_START: function(editor) {
var mode = editor.session.$mode || {};
return mode.blockComment && mode.blockComment.start || "";
},
BLOCK_COMMENT_END: function(editor) {
var mode = editor.session.$mode || {};
return mode.blockComment && mode.blockComment.end || "";
},
LINE_COMMENT: function(editor) {
var mode = editor.session.$mode || {};
return mode.lineCommentStart || "";
},
// dates
CURRENT_YEAR: date.bind(null, {year: "numeric"}),
CURRENT_YEAR_SHORT: date.bind(null, {year: "2-digit"}),
CURRENT_MONTH: date.bind(null, {month: "numeric"}),
CURRENT_MONTH_NAME: date.bind(null, {month: "long"}),
CURRENT_MONTH_NAME_SHORT: date.bind(null, {month: "short"}),
CURRENT_DATE: date.bind(null, {day: "2-digit"}),
CURRENT_DAY_NAME: date.bind(null, {weekday: "long"}),
CURRENT_DAY_NAME_SHORT: date.bind(null, {weekday: "short"}),
CURRENT_HOUR: date.bind(null, {hour: "2-digit", hour12: false}),
CURRENT_MINUTE: date.bind(null, {minute: "2-digit"}),
CURRENT_SECOND: date.bind(null, {second: "2-digit"})
};
VARIABLES.SELECTED_TEXT = VARIABLES.SELECTION;
function date(dateFormat) {
var str = new Date().toLocaleString("en-us", dateFormat);
return str.length == 1 ? "0" + str : str;
}
class SnippetManager {
constructor() {
this.snippetMap = {};
this.snippetNameMap = {};
this.variables = VARIABLES;
}
/**
* @return {Tokenizer}
*/
getTokenizer() {
return SnippetManager["$tokenizer"] || this.createTokenizer();
}
createTokenizer() {
function TabstopToken(str) {
str = str.substr(1);
if (/^\d+$/.test(str))
return [{tabstopId: parseInt(str, 10)}];
return [{text: str}];
}
function escape(ch) {
return "(?:[^\\\\" + ch + "]|\\\\.)";
}
var formatMatcher = {
regex: "/(" + escape("/") + "+)/",
onMatch: function(val, state, stack) {
var ts = stack[0];
ts.fmtString = true;
ts.guard = val.slice(1, -1);
ts.flag = "";
return "";
},
next: "formatString"
};
SnippetManager["$tokenizer"] = new Tokenizer({
start: [
{regex: /\\./, onMatch: function(val, state, stack) {
var ch = val[1];
if (ch == "}" && stack.length) {
val = ch;
} else if ("`$\\".indexOf(ch) != -1) {
val = ch;
}
return [val];
}},
{regex: /}/, onMatch: function(val, state, stack) {
return [stack.length ? stack.shift() : val];
}},
{regex: /\$(?:\d+|\w+)/, onMatch: TabstopToken},
{regex: /\$\{[\dA-Z_a-z]+/, onMatch: function(str, state, stack) {
var t = TabstopToken(str.substr(1));
stack.unshift(t[0]);
return t;
}, next: "snippetVar"},
{regex: /\n/, token: "newline", merge: false}
],
snippetVar: [
{regex: "\\|" + escape("\\|") + "*\\|", onMatch: function(val, state, stack) {
var choices = val.slice(1, -1).replace(/\\[,|\\]|,/g, function(operator) {
return operator.length == 2 ? operator[1] : "\x00";
}).split("\x00").map(function(value){
return {value: value};
});
stack[0].choices = choices;
return [choices[0]];
}, next: "start"},
formatMatcher,
{regex: "([^:}\\\\]|\\\\.)*:?", token: "", next: "start"}
],
formatString: [
{regex: /:/, onMatch: function(val, state, stack) {
if (stack.length && stack[0].expectElse) {
stack[0].expectElse = false;
stack[0].ifEnd = {elseEnd: stack[0]};
return [stack[0].ifEnd];
}
return ":";
}},
{regex: /\\./, onMatch: function(val, state, stack) {
var ch = val[1];
if (ch == "}" && stack.length)
val = ch;
else if ("`$\\".indexOf(ch) != -1)
val = ch;
else if (ch == "n")
val = "\n";
else if (ch == "t")
val = "\t";
else if ("ulULE".indexOf(ch) != -1)
val = {changeCase: ch, local: ch > "a"};
return [val];
}},
{regex: "/\\w*}", onMatch: function(val, state, stack) {
var next = stack.shift();
if (next)
next.flag = val.slice(1, -1);
this.next = next && next.tabstopId ? "start" : "";
return [next || val];
}, next: "start"},
{regex: /\$(?:\d+|\w+)/, onMatch: function(val, state, stack) {
return [{text: val.slice(1)}];
}},
{regex: /\${\w+/, onMatch: function(val, state, stack) {
var token = {text: val.slice(2)};
stack.unshift(token);
return [token];
}, next: "formatStringVar"},
{regex: /\n/, token: "newline", merge: false},
{regex: /}/, onMatch: function(val, state, stack) {
var next = stack.shift();
this.next = next && next.tabstopId ? "start" : "";
return [next || val];
}, next: "start"}
],
formatStringVar: [
{regex: /:\/\w+}/, onMatch: function(val, state, stack) {
var ts = stack[0];
ts.formatFunction = val.slice(2, -1);
return [stack.shift()];
}, next: "formatString"},
formatMatcher,
{regex: /:[\?\-+]?/, onMatch: function(val, state, stack) {
if (val[1] == "+")
stack[0].ifEnd = stack[0];
if (val[1] == "?")
stack[0].expectElse = true;
}, next: "formatString"},
{regex: "([^:}\\\\]|\\\\.)*:?", token: "", next: "formatString"}
]
});
return SnippetManager["$tokenizer"];
}
tokenizeTmSnippet(str, startState) {
return this.getTokenizer().getLineTokens(str, startState).tokens.map(function(x) {
return x.value || x;
});
}
getVariableValue(editor, name, indentation) {
if (/^\d+$/.test(name))
return (this.variables.__ || {})[name] || "";
if (/^[A-Z]\d+$/.test(name))
return (this.variables[name[0] + "__"] || {})[name.substr(1)] || "";
name = name.replace(/^TM_/, "");
if (!this.variables.hasOwnProperty(name))
return "";
var value = this.variables[name];
if (typeof value == "function")
value = this.variables[name](editor, name, indentation);
return value == null ? "" : value;
}
// returns string formatted according to http://manual.macromates.com/en/regular_expressions#replacement_string_syntax_format_strings
tmStrFormat(str, ch, editor) {
if (!ch.fmt) return str;
var flag = ch.flag || "";
var re = ch.guard;
re = new RegExp(re, flag.replace(/[^gim]/g, ""));
var fmtTokens = typeof ch.fmt == "string" ? this.tokenizeTmSnippet(ch.fmt, "formatString") : ch.fmt;
var _self = this;
var formatted = str.replace(re, function() {
var oldArgs = _self.variables.__;
_self.variables.__ = [].slice.call(arguments);
var fmtParts = _self.resolveVariables(fmtTokens, editor);
var gChangeCase = "E";
for (var i = 0; i < fmtParts.length; i++) {
var ch = fmtParts[i];
if (typeof ch == "object") {
fmtParts[i] = "";
if (ch.changeCase && ch.local) {
var next = fmtParts[i + 1];
if (next && typeof next == "string") {
if (ch.changeCase == "u")
fmtParts[i] = next[0].toUpperCase();
else
fmtParts[i] = next[0].toLowerCase();
fmtParts[i + 1] = next.substr(1);
}
} else if (ch.changeCase) {
gChangeCase = ch.changeCase;
}
} else if (gChangeCase == "U") {
fmtParts[i] = ch.toUpperCase();
} else if (gChangeCase == "L") {
fmtParts[i] = ch.toLowerCase();
}
}
_self.variables.__ = oldArgs;
return fmtParts.join("");
});
return formatted;
}
tmFormatFunction(str, ch, editor) {
if (ch.formatFunction == "upcase")
return str.toUpperCase();
if (ch.formatFunction == "downcase")
return str.toLowerCase();
return str;
}
resolveVariables(snippet, editor) {
var result = [];
var indentation = "";
var afterNewLine = true;
for (var i = 0; i < snippet.length; i++) {
var ch = snippet[i];
if (typeof ch == "string") {
result.push(ch);
if (ch == "\n") {
afterNewLine = true;
indentation = "";
}
else if (afterNewLine) {
indentation = /^\t*/.exec(ch)[0];
afterNewLine = /\S/.test(ch);
}
continue;
}
if (!ch) continue;
afterNewLine = false;
if (ch.fmtString) {
var j = snippet.indexOf(ch, i + 1);
if (j == -1) j = snippet.length;
ch.fmt = snippet.slice(i + 1, j);
i = j;
}
if (ch.text) {
var value = this.getVariableValue(editor, ch.text, indentation) + "";
if (ch.fmtString)
value = this.tmStrFormat(value, ch, editor);
if (ch.formatFunction)
value = this.tmFormatFunction(value, ch, editor);
if (value && !ch.ifEnd) {
result.push(value);
gotoNext(ch);
} else if (!value && ch.ifEnd) {
gotoNext(ch.ifEnd);
}
} else if (ch.elseEnd) {
gotoNext(ch.elseEnd);
} else if (ch.tabstopId != null) {
result.push(ch);
} else if (ch.changeCase != null) {
result.push(ch);
}
}
function gotoNext(ch) {
var i1 = snippet.indexOf(ch, i + 1);
if (i1 != -1)
i = i1;
}
return result;
}
getDisplayTextForSnippet(editor, snippetText) {
var processedSnippet = processSnippetText.call(this, editor, snippetText);
return processedSnippet.text;
}
insertSnippetForSelection(editor, snippetText, options={}) {
var processedSnippet = processSnippetText.call(this, editor, snippetText, options);
var range = editor.getSelectionRange();
var end = editor.session.replace(range, processedSnippet.text);
var tabstopManager = new TabstopManager(editor);
var selectionId = editor.inVirtualSelectionMode && editor.selection.index;
//@ts-expect-error TODO: potential wrong arguments
tabstopManager.addTabstops(processedSnippet.tabstops, range.start, end, selectionId);
}
insertSnippet(editor, snippetText, options={}) {
var self = this;
if (editor.inVirtualSelectionMode)
return self.insertSnippetForSelection(editor, snippetText, options);
editor.forEachSelection(function() {
self.insertSnippetForSelection(editor, snippetText, options);
}, null, {keepOrder: true});
if (editor.tabstopManager)
editor.tabstopManager.tabNext();
}
$getScope(editor) {
var scope = editor.session.$mode.$id || "";
scope = scope.split("/").pop();
if (scope === "html" || scope === "php") {
// PHP is actually HTML
if (scope === "php" && !editor.session.$mode.inlinePhp)
scope = "html";
var c = editor.getCursorPosition();
var state = editor.session.getState(c.row);
if (typeof state === "object") {
state = state[0];
}
if (state.substring) {
if (state.substring(0, 3) == "js-")
scope = "javascript";
else if (state.substring(0, 4) == "css-")
scope = "css";
else if (state.substring(0, 4) == "php-")
scope = "php";
}
}
return scope;
}
getActiveScopes(editor) {
var scope = this.$getScope(editor);
var scopes = [scope];
var snippetMap = this.snippetMap;
if (snippetMap[scope] && snippetMap[scope].includeScopes) {
scopes.push.apply(scopes, snippetMap[scope].includeScopes);
}
scopes.push("_");
return scopes;
}
expandWithTab(editor, options) {
var self = this;
var result = editor.forEachSelection(function() {
return self.expandSnippetForSelection(editor, options);
}, null, {keepOrder: true});
if (result && editor.tabstopManager)
editor.tabstopManager.tabNext();
return result;
}
expandSnippetForSelection(editor, options) {
var cursor = editor.getCursorPosition();
var line = editor.session.getLine(cursor.row);
var before = line.substring(0, cursor.column);
var after = line.substr(cursor.column);
var snippetMap = this.snippetMap;
/**@type {Snippet}*/
var snippet;
this.getActiveScopes(editor).some(function(scope) {
var snippets = snippetMap[scope];
if (snippets)
snippet = this.findMatchingSnippet(snippets, before, after);
return !!snippet;
}, this);
if (!snippet)
return false;
if (options && options.dryRun)
return true;
editor.session.doc.removeInLine(cursor.row,
cursor.column - snippet.replaceBefore.length,
cursor.column + snippet.replaceAfter.length
);
this.variables.M__ = snippet.matchBefore;
this.variables.T__ = snippet.matchAfter;
this.insertSnippetForSelection(editor, snippet.content);
this.variables.M__ = this.variables.T__ = null;
return true;
}
/**
* @param {Snippet[]} snippetList
* @param {string} before
* @param {string} after
* @return {Snippet}
*/
findMatchingSnippet(snippetList, before, after) {
for (var i = snippetList.length; i--;) {
var s = snippetList[i];
if (s.startRe && !s.startRe.test(before))
continue;
if (s.endRe && !s.endRe.test(after))
continue;
if (!s.startRe && !s.endRe)
continue;
s.matchBefore = s.startRe ? s.startRe.exec(before) : [""];
s.matchAfter = s.endRe ? s.endRe.exec(after) : [""];
s.replaceBefore = s.triggerRe ? s.triggerRe.exec(before)[0] : "";
s.replaceAfter = s.endTriggerRe ? s.endTriggerRe.exec(after)[0] : "";
return s;
}
}
/**
* @param {any[]} snippets
* @param {string} scope
*/
register(snippets, scope) {
var snippetMap = this.snippetMap;
var snippetNameMap = this.snippetNameMap;
var self = this;
if (!snippets)
snippets = [];
function wrapRegexp(src) {
if (src && !/^\^?\(.*\)\$?$|^\\b$/.test(src))
src = "(?:" + src + ")";
return src || "";
}
function guardedRegexp(re, guard, opening) {
re = wrapRegexp(re);
guard = wrapRegexp(guard);
if (opening) {
re = guard + re;
if (re && re[re.length - 1] != "$")
re = re + "$";
} else {
re = re + guard;
if (re && re[0] != "^")
re = "^" + re;
}
return new RegExp(re);
}
function addSnippet(s) {
if (!s.scope)
s.scope = scope || "_";
scope = s.scope;
if (!snippetMap[scope]) {
snippetMap[scope] = [];
snippetNameMap[scope] = {};
}
var map = snippetNameMap[scope];
if (s.name) {
var old = map[s.name];
if (old)
self.unregister(old);
map[s.name] = s;
}
snippetMap[scope].push(s);
if (s.prefix)
s.tabTrigger = s.prefix;
if (!s.content && s.body)
s.content = Array.isArray(s.body) ? s.body.join("\n") : s.body;
if (s.tabTrigger && !s.trigger) {
if (!s.guard && /^\w/.test(s.tabTrigger))
s.guard = "\\b";
s.trigger = lang.escapeRegExp(s.tabTrigger);
}
if (!s.trigger && !s.guard && !s.endTrigger && !s.endGuard)
return;
s.startRe = guardedRegexp(s.trigger, s.guard, true);
s.triggerRe = new RegExp(s.trigger);
s.endRe = guardedRegexp(s.endTrigger, s.endGuard, true);
s.endTriggerRe = new RegExp(s.endTrigger);
}
if (Array.isArray(snippets)) {
snippets.forEach(addSnippet);
} else {
Object.keys(snippets).forEach(function(key) {
addSnippet(snippets[key]);
});
}
// @ts-ignore
this._signal("registerSnippets", {scope: scope});
}
unregister(snippets, scope) {
var snippetMap = this.snippetMap;
var snippetNameMap = this.snippetNameMap;
function removeSnippet(s) {
var nameMap = snippetNameMap[s.scope||scope];
if (nameMap && nameMap[s.name]) {
delete nameMap[s.name];
var map = snippetMap[s.scope||scope];
var i = map && map.indexOf(s);
if (i >= 0)
map.splice(i, 1);
}
}
if (snippets.content)
removeSnippet(snippets);
else if (Array.isArray(snippets))
snippets.forEach(removeSnippet);
}
parseSnippetFile(str) {
str = str.replace(/\r/g, "");
var list = [], /**@type{Snippet}*/snippet = {};
var re = /^#.*|^({[\s\S]*})\s*$|^(\S+) (.*)$|^((?:\n*\t.*)+)/gm;
var m;
while (m = re.exec(str)) {
if (m[1]) {
try {
snippet = JSON.parse(m[1]);
list.push(snippet);
} catch (e) {}
} if (m[4]) {
snippet.content = m[4].replace(/^\t/gm, "");
list.push(snippet);
snippet = {};
} else {
var key = m[2], val = m[3];
if (key == "regex") {
var guardRe = /\/((?:[^\/\\]|\\.)*)|$/g;
snippet.guard = guardRe.exec(val)[1];
snippet.trigger = guardRe.exec(val)[1];
snippet.endTrigger = guardRe.exec(val)[1];
snippet.endGuard = guardRe.exec(val)[1];
} else if (key == "snippet") {
snippet.tabTrigger = val.match(/^\S*/)[0];
if (!snippet.name)
snippet.name = val;
} else if (key) {
snippet[key] = val;
}
}
}
return list;
}
getSnippetByName(name, editor) {
var snippetMap = this.snippetNameMap;
var snippet;
this.getActiveScopes(editor).some(function(scope) {
var snippets = snippetMap[scope];
if (snippets)
snippet = snippets[name];
return !!snippet;
}, this);
return snippet;
}
}
oop.implement(SnippetManager.prototype, EventEmitter);
var processSnippetText = function(editor, snippetText, options={}) {
var cursor = editor.getCursorPosition();
var line = editor.session.getLine(cursor.row);
var tabString = editor.session.getTabString();
var indentString = line.match(/^\s*/)[0];
if (cursor.column < indentString.length)
indentString = indentString.slice(0, cursor.column);
snippetText = snippetText.replace(/\r/g, "");
var tokens = this.tokenizeTmSnippet(snippetText);
tokens = this.resolveVariables(tokens, editor);
// indent
tokens = tokens.map(function(x) {
if (x == "\n" && !options.excludeExtraIndent)
return x + indentString;
if (typeof x == "string")
return x.replace(/\t/g, tabString);
return x;
});
// tabstop values
var tabstops = [];
tokens.forEach(function(p, i) {
if (typeof p != "object")
return;
var id = p.tabstopId;
var ts = tabstops[id];
if (!ts) {
ts = tabstops[id] = [];
ts.index = id;
ts.value = "";
ts.parents = {};
}
if (ts.indexOf(p) !== -1)
return;
if (p.choices && !ts.choices)
ts.choices = p.choices;
ts.push(p);
var i1 = tokens.indexOf(p, i + 1);
if (i1 === -1)
return;
var value = tokens.slice(i + 1, i1);
var isNested = value.some(function(t) {return typeof t === "object";});
if (isNested && !ts.value) {
ts.value = value;
} else if (value.length && (!ts.value || typeof ts.value !== "string")) {
ts.value = value.join("");
}
});
// expand tabstop values
tabstops.forEach(function(ts) {ts.length = 0;});
var expanding = {};
function copyValue(val) {
var copy = [];
for (var i = 0; i < val.length; i++) {
var p = val[i];
if (typeof p == "object") {
if (expanding[p.tabstopId])
continue;
var j = val.lastIndexOf(p, i - 1);
p = copy[j] || {tabstopId: p.tabstopId};
}
copy[i] = p;
}
return copy;
}
for (var i = 0; i < tokens.length; i++) {
var p = tokens[i];
if (typeof p != "object")
continue;
var id = p.tabstopId;
var ts = tabstops[id];
var i1 = tokens.indexOf(p, i + 1);
if (expanding[id]) {
// if reached closing bracket clear expanding state
if (expanding[id] === p) {
delete expanding[id];
Object.keys(expanding).forEach(function(parentId) {
ts.parents[parentId] = true;
});
}
// otherwise just ignore recursive tabstop
continue;
}
expanding[id] = p;
var value = ts.value;
if (typeof value !== "string")
value = copyValue(value);
else if (p.fmt)
value = this.tmStrFormat(value, p, editor);
tokens.splice.apply(tokens, [i + 1, Math.max(0, i1 - i)].concat(value, p));
if (ts.indexOf(p) === -1)
ts.push(p);
}
// convert to plain text
var row = 0, column = 0;
var text = "";
tokens.forEach(function(t) {
if (typeof t === "string") {
var lines = t.split("\n");
if (lines.length > 1){
column = lines[lines.length - 1].length;
row += lines.length - 1;
} else
column += t.length;
text += t;
} else if (t) {
if (!t.start)
t.start = {row: row, column: column};
else
t.end = {row: row, column: column};
}
});
return {
text,
tabstops,
tokens
};
};
class TabstopManager {
constructor(editor) {
this.index = 0;
this.ranges = [];
this.tabstops = [];
if (editor.tabstopManager)
return editor.tabstopManager;
editor.tabstopManager = this;
this.$onChange = this.onChange.bind(this);
this.$onChangeSelection = lang.delayedCall(this.onChangeSelection.bind(this)).schedule;
this.$onChangeSession = this.onChangeSession.bind(this);
this.$onAfterExec = this.onAfterExec.bind(this);
this.attach(editor);
}
attach(editor) {
this.$openTabstops = null;
this.selectedTabstop = null;
this.editor = editor;
this.session = editor.session;
this.editor.on("change", this.$onChange);
this.editor.on("changeSelection", this.$onChangeSelection);
this.editor.on("changeSession", this.$onChangeSession);
this.editor.commands.on("afterExec", this.$onAfterExec);
this.editor.keyBinding.addKeyboardHandler(this.keyboardHandler);
}
detach() {
this.tabstops.forEach(this.removeTabstopMarkers, this);
this.ranges.length = 0;
this.tabstops.length = 0;
this.selectedTabstop = null;
this.editor.off("change", this.$onChange);
this.editor.off("changeSelection", this.$onChangeSelection);
this.editor.off("changeSession", this.$onChangeSession);
this.editor.commands.off("afterExec", this.$onAfterExec);
this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler);
this.editor.tabstopManager = null;
this.session = null;
this.editor = null;
}
/**
* @internal
*/
onChange(delta) {
var isRemove = delta.action[0] == "r";
var selectedTabstop = this.selectedTabstop || {};
var parents = selectedTabstop.parents || {};
var tabstops = this.tabstops.slice();
for (var i = 0; i < tabstops.length; i++) {
var ts = tabstops[i];
var active = ts == selectedTabstop || parents[ts.index];
ts.rangeList.$bias = active ? 0 : 1;
if (delta.action == "remove" && ts !== selectedTabstop) {
var parentActive = ts.parents && ts.parents[selectedTabstop.index];
var startIndex = ts.rangeList.pointIndex(delta.start, parentActive);
startIndex = startIndex < 0 ? -startIndex - 1 : startIndex + 1;
var endIndex = ts.rangeList.pointIndex(delta.end, parentActive);
endIndex = endIndex < 0 ? -endIndex - 1 : endIndex - 1;
var toRemove = ts.rangeList.ranges.slice(startIndex, endIndex);
for (var j = 0; j < toRemove.length; j++)
this.removeRange(toRemove[j]);
}
ts.rangeList.$onChange(delta);
}
var session = this.session;
if (!this.$inChange && isRemove && session.getLength() == 1 && !session.getValue())
this.detach();
}
updateLinkedFields() {
var ts = this.selectedTabstop;
if (!ts || !ts.hasLinkedRanges || !ts.firstNonLinked)
return;
this.$inChange = true;
var session = this.session;
var text = session.getTextRange(ts.firstNonLinked);
for (var i = 0; i < ts.length; i++) {
var range = ts[i];
if (!range.linked)
continue;
var original = range.original;
var fmt = exports.snippetManager.tmStrFormat(text, original, this.editor);
session.replace(range, fmt);
}
this.$inChange = false;
}
/**
* @internal
*/
onAfterExec(e) {
if (e.command && !e.command.readOnly)
this.updateLinkedFields();
}
/**
* @internal
*/
onChangeSelection() {
if (!this.editor)
return;
var lead = this.editor.selection.lead;
var anchor = this.editor.selection.anchor;
var isEmpty = this.editor.selection.isEmpty();
for (var i = 0; i < this.ranges.length; i++) {
if (this.ranges[i].linked)
continue;
var containsLead = this.ranges[i].contains(lead.row, lead.column);
var containsAnchor = isEmpty || this.ranges[i].contains(anchor.row, anchor.column);
if (containsLead && containsAnchor)
return;
}
this.detach();
}
/**
* @internal
*/
onChangeSession() {
this.detach();
}
tabNext(dir) {
var max = this.tabstops.length;
var index = this.index + (dir || 1);
index = Math.min(Math.max(index, 1), max);
if (index == max)
index = 0;
this.selectTabstop(index);
this.updateTabstopMarkers();
if (index === 0) {
this.detach();
}
}
selectTabstop(index) {
this.$openTabstops = null;
var ts = this.tabstops[this.index];
if (ts)
this.addTabstopMarkers(ts);
this.index = index;
ts = this.tabstops[this.index];
if (!ts || !ts.length)
return;
this.selectedTabstop = ts;
var range = ts.firstNonLinked || ts;
if (ts.choices) range.cursor = range.start;
if (!this.editor.inVirtualSelectionMode) {
var sel = this.editor.multiSelect;
sel.toSingleRange(range);
for (var i = 0; i < ts.length; i++) {
if (ts.hasLinkedRanges && ts[i].linked)
continue;
sel.addRange(ts[i].clone(), true);
}
} else {
this.editor.selection.fromOrientedRange(range);
}
this.editor.keyBinding.addKeyboardHandler(this.keyboardHandler);
if (this.selectedTabstop && this.selectedTabstop.choices)
this.editor.execCommand("startAutocomplete", {matches: this.selectedTabstop.choices});
}
addTabstops(tabstops, start, end) {
var useLink = this.useLink || !this.editor.getOption("enableMultiselect");
if (!this.$openTabstops)
this.$openTabstops = [];
// add final tabstop if missing
if (!tabstops[0]) {
var p = Range.fromPoints(end, end);
moveRelative(p.start, start);
moveRelative(p.end, start);
tabstops[0] = [p];
tabstops[0].index = 0;
}
var i = this.index;
var arg = [i + 1, 0];
var ranges = this.ranges;
var snippetId = this.snippetId = (this.snippetId || 0) + 1;
tabstops.forEach(function(ts, index) {
var dest = this.$openTabstops[index] || ts;
dest.snippetId = snippetId;
for (var i = 0; i < ts.length; i++) {
var p = ts[i];
/**@type {Range & {original?: Range, tabstop?: any, linked?: boolean}}}*/
var range = Range.fromPoints(p.start, p.end || p.start);
movePoint(range.start, start);
movePoint(range.end, start);
range.original = p;
range.tabstop = dest;
ranges.push(range);
if (dest != ts)
dest.unshift(range);
else
dest[i] = range;
if (p.fmtString || (dest.firstNonLinked && useLink)) {
range.linked = true;
dest.hasLinkedRanges = true;
} else if (!dest.firstNonLinked)
dest.firstNonLinked = range;
}
if (!dest.firstNonLinked)
dest.hasLinkedRanges = false;
if (dest === ts) {
arg.push(dest);
this.$openTabstops[index] = dest;
}
this.addTabstopMarkers(dest);
dest.rangeList = dest.rangeList || new RangeList();
dest.rangeList.$bias = 0;
dest.rangeList.addList(dest);
}, this);
if (arg.length > 2) {
// when adding new snippet inside existing one, make sure 0 tabstop is at the end
if (this.tabstops.length)
arg.push(arg.splice(2, 1)[0]);
this.tabstops.splice.apply(this.tabstops, arg);
}
}
addTabstopMarkers(ts) {