p5.js-web-editor/client/utils/codemirror-search.js

434 lines
15 KiB
JavaScript
Raw Normal View History

/* eslint-disable */
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// Define search commands. Depends on dialog.js or another
// implementation of the openDialog method.
// Replace works a little oddly -- it will do the replace on the next
// Ctrl-G (or whatever is bound to findNext) press. You prevent a
// replace by making sure the match is no longer selected when hitting
// Ctrl-G.
export default function(CodeMirror) {
"use strict";
function searchOverlay(query) {
return {token: function(stream) {
query.lastIndex = stream.pos;
var match = query.exec(stream.string);
if (match && match.index == stream.pos) {
stream.pos += match[0].length || 1;
return "searching";
} else if (match) {
stream.pos = match.index;
} else {
stream.skipToEnd();
}
}};
}
function SearchState() {
this.posFrom = this.posTo = this.lastQuery = this.query = null;
this.overlay = null;
this.regexp = false;
this.caseInsensitive = true;
this.wholeWord = false;
}
function getSearchState(cm) {
return cm.state.search || (cm.state.search = new SearchState());
}
function getSearchCursor(cm, query, pos) {
return cm.getSearchCursor(query, pos, getSearchState(cm).caseInsensitive);
}
function persistentDialog(cm, text, deflt, onEnter, onKeyDown) {
var searchField = document.getElementsByClassName("CodeMirror-search-field")[0];
if (!searchField) {
cm.openDialog(text, onEnter, {
value: deflt,
selectValueOnOpen: true,
closeOnEnter: false,
onClose: function () {
clearSearch(cm);
},
onKeyDown: onKeyDown,
closeOnBlur: false
});
searchField = document.getElementsByClassName("CodeMirror-search-field")[0];
var dialog = document.getElementsByClassName("CodeMirror-dialog")[0];
var closeButton = dialog.getElementsByClassName("close")[0];
var state = getSearchState(cm);
CodeMirror.on(searchField, "keyup", function (e) {
if (e.keyCode !== 13 && searchField.value.length > 1) { // not enter and more than 1 character to search
startSearch(cm, getSearchState(cm), searchField.value);
}
});
CodeMirror.on(closeButton, "click", function () {
clearSearch(cm);
dialog.parentNode.removeChild(dialog);
cm.focus();
});
var upArrow = dialog.getElementsByClassName("up-arrow")[0];
CodeMirror.on(upArrow, "click", function () {
CodeMirror.commands.findPrev(cm);
searchField.blur();
cm.focus();
});
var downArrow = dialog.getElementsByClassName("down-arrow")[0];
CodeMirror.on(downArrow, "click", function () {
CodeMirror.commands.findNext(cm);
searchField.blur();
cm.focus();
});
var regexpButton = dialog.getElementsByClassName("CodeMirror-regexp-button")[0];
CodeMirror.on(regexpButton, "click", function () {
var state = getSearchState(cm);
state.regexp = toggle(regexpButton);
startSearch(cm, getSearchState(cm), searchField.value);
});
toggle(regexpButton, state.regexp);
var caseSensitiveButton = dialog.getElementsByClassName("CodeMirror-case-button")[0];
CodeMirror.on(caseSensitiveButton, "click", function () {
var state = getSearchState(cm);
state.caseInsensitive = !toggle(caseSensitiveButton);
startSearch(cm, getSearchState(cm), searchField.value);
});
toggle(caseSensitiveButton, !state.caseInsensitive);
var wholeWordButton = dialog.getElementsByClassName("CodeMirror-word-button")[0];
CodeMirror.on(wholeWordButton, "click", function () {
var state = getSearchState(cm);
state.wholeWord = toggle(wholeWordButton);
startSearch(cm, getSearchState(cm), searchField.value);
});
toggle(wholeWordButton, state.wholeWord);
function toggle(el, initialState) {
var currentState, nextState;
if (initialState == null) {
currentState = el.getAttribute('aria-checked') === 'true';
nextState = !currentState;
} else {
nextState = initialState;
}
el.setAttribute('aria-checked', nextState);
return nextState;
}
} else {
searchField.focus();
}
}
function dialog(cm, text, shortText, deflt, f) {
if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
else f(prompt(shortText, deflt));
}
var lastSelectedIndex = 0;
function confirmDialog(cm, text, shortText, fs) {
if (cm.openConfirm) cm.openConfirm(text, fs);
else if (confirm(shortText)) fs[0]();
var dialog = document.getElementsByClassName("CodeMirror-dialog")[0];
var buttons = dialog.getElementsByTagName("button");
buttons[lastSelectedIndex].focus();
for (var i = 0; i < buttons.length; i += 1) {
(function (index) {
var button = buttons[index];
button.addEventListener("focus", function (e) {
lastSelectedIndex = index === buttons.length - 1 ? 0 : index;
});
button.addEventListener("keyup", function (e) {
if (e.keyCode === 37) { // arrow left
var prevButton = index === 0 ? buttons.length - 1 : index - 1;
buttons[prevButton].focus();
}
if (e.keyCode === 39) { // arrow right
var nextButton = index === buttons.length - 1 ? 0 : index + 1;
buttons[nextButton].focus();
}
if (e.keyCode === 27) { // esc
cm.focus();
}
});
button.addEventListener("click", function () {
if (index === buttons.length - 1) { // "done"
lastSelectedIndex = 0;
}
})
})(i);
}
}
function parseString(string) {
return string.replace(/\\(.)/g, function(_, ch) {
if (ch == "n") return "\n"
if (ch == "r") return "\r"
return ch
})
}
/*
Parses the query text and state and returns
a RegExp ready for searching
*/
function parseQuery(query, state) {
var emptyQuery = 'x^'; // matches nothing
if (query === '') { // empty string matches nothing
query = emptyQuery;
} else {
if (state.regexp === false) {
query = parseString(query);
query = query.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
}
if (state.wholeWord) {
query += '\\b';
}
}
var regexp;
try {
regexp = new RegExp(query, state.caseInsensitive ? "gi" : "g");
} catch (e) {
regexp = new RegExp(emptyQuery, 'g');
}
// If the resulting regexp will match everything, do not use it
if (regexp.test('')) {
return new RegExp(emptyQuery, 'g');
}
return regexp;
}
var queryDialog = `
<h3 class="CodeMirror-search-title">Find</h3>
<input type="text" class="search-input CodeMirror-search-field" placeholder="Search for" />
<div class="CodeMirror-search-actions">
<div class="CodeMirror-search-modifiers button-wrap">
<button
title="Regular expression"
aria-label="Regular expression"
role="checkbox"
class="CodeMirror-search-modifier-button CodeMirror-regexp-button"
>
<span aria-hidden="true" class="button">.*</span>
</button>
<button
title="Case sensitive"
aria-label="Case sensitive"
role="checkbox"
class="CodeMirror-search-modifier-button CodeMirror-case-button"
>
<span aria-hidden="true" class="button">Aa</span>
</button>
<button
title="Whole words"
aria-label="Whole words"
role="checkbox"
class="CodeMirror-search-modifier-button CodeMirror-word-button"
>
<span aria-hidden="true" class="button">" "</span>
</button>
</div>
<div class="CodeMirror-search-nav">
<button
title="Previous"
aria-label="Previous"
class="CodeMirror-search-button icon up-arrow prev"
>
</button>
<button
title="Next"
aria-label="Next"
class="CodeMirror-search-button icon down-arrow next"
>
</button>
</div>
</div>
<button
title="Close"
aria-label="Close"
class="CodeMirror-close-button close icon">
</button>
`;
function startSearch(cm, state, originalQuery) {
state.queryText = originalQuery;
state.query = parseQuery(originalQuery, state);
cm.removeOverlay(state.overlay, state.caseInsensitive);
state.overlay = searchOverlay(state.query);
cm.addOverlay(state.overlay);
if (cm.showMatchesOnScrollbar) {
if (state.annotate) { state.annotate.clear(); state.annotate = null; }
state.annotate = cm.showMatchesOnScrollbar(state.query, state.caseInsensitive);
}
}
function doSearch(cm, rev, persistent, immediate, ignoreQuery) {
var state = getSearchState(cm);
if (!ignoreQuery && state.query) return findNext(cm, rev);
var q = cm.getSelection() || state.lastQuery;
if (persistent && cm.openDialog) {
var hiding = null
var searchNext = function(query, event) {
CodeMirror.e_stop(event);
if (!query) return;
if (query != state.queryText) {
startSearch(cm, state, query);
state.posFrom = state.posTo = cm.getCursor();
}
if (hiding) hiding.style.opacity = 1
findNext(cm, event.shiftKey, function(_, to) {
var dialog
if (to.line < 3 && document.querySelector &&
(dialog = cm.display.wrapper.querySelector(".CodeMirror-dialog")) &&
dialog.getBoundingClientRect().bottom - 4 > cm.cursorCoords(to, "window").top)
(hiding = dialog).style.opacity = .4
})
};
persistentDialog(cm, queryDialog, q, searchNext, function(event, query) {
var keyName = CodeMirror.keyName(event)
var cmd = CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
if (!cmd) cmd = cm.getOption('extraKeys')[keyName]
if (cmd == "findNext" || cmd == "findPrev" ||
cmd == "findPersistentNext" || cmd == "findPersistentPrev") {
CodeMirror.e_stop(event);
startSearch(cm, getSearchState(cm), query);
cm.execCommand(cmd);
} else if (cmd == "find" || cmd == "findPersistent") {
CodeMirror.e_stop(event);
searchNext(query, event);
}
});
if (immediate && q) {
startSearch(cm, state, q);
findNext(cm, rev);
}
} else {
dialog(cm, queryDialog, "Search for:", q, function(query) {
if (query && !state.query) cm.operation(function() {
startSearch(cm, state, query);
state.posFrom = state.posTo = cm.getCursor();
findNext(cm, rev);
});
});
}
}
function findNext(cm, rev, callback) {cm.operation(function() {
var state = getSearchState(cm);
var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
if (!cursor.find(rev)) {
cursor = getSearchCursor(cm, state.query, rev ? CodeMirror.Pos(cm.lastLine()) : CodeMirror.Pos(cm.firstLine(), 0));
if (!cursor.find(rev)) return;
}
cm.setSelection(cursor.from(), cursor.to());
cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 60);
state.posFrom = cursor.from(); state.posTo = cursor.to();
if (callback) callback(cursor.from(), cursor.to())
});}
function clearSearch(cm) {cm.operation(function() {
var state = getSearchState(cm);
state.lastQuery = state.queryText;
if (!state.query) return;
state.query = state.queryText = null;
cm.removeOverlay(state.overlay);
if (state.annotate) { state.annotate.clear(); state.annotate = null; }
});}
var replaceQueryDialog =
'<input type="text" class="search-input CodeMirror-search-field"/><div class="close icon"></div>';
var replacementQueryDialog = 'With: <input type="text" class="replace-input CodeMirror-search-field"/>';
var doReplaceConfirm = "Replace? <button>Yes</button> <button>No</button> <button>All</button> <button>Stop</button>";
function replaceAll(cm, query, text) {
cm.operation(function() {
for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
if (typeof query != "string") {
var match = cm.getRange(cursor.from(), cursor.to()).match(query);
cursor.replace(text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
} else cursor.replace(text);
}
});
}
// TODO: This will need updating if replace is implemented
function replace(cm, all) {
var prevDialog = document.getElementsByClassName("CodeMirror-dialog")[0];
if (prevDialog) {
clearSearch(cm);
prevDialog.parentNode.removeChild(prevDialog);
cm.focus();
}
if (cm.getOption("readOnly")) return;
var query = cm.getSelection() || getSearchState(cm).lastQuery;
var dialogText = all ? "Replace all:" : "Replace:"
dialog(cm, dialogText + replaceQueryDialog, dialogText, query, function(query) {
if (!query) return;
query = parseQuery(query);
dialog(cm, replacementQueryDialog, "Replace with:", "", function(text) {
text = parseString(text)
if (all) {
replaceAll(cm, query, text)
} else {
clearSearch(cm);
var cursor = getSearchCursor(cm, query, cm.getCursor("from"));
var advance = function() {
var start = cursor.from(), match;
if (!(match = cursor.findNext())) {
cursor = getSearchCursor(cm, query);
if (!(match = cursor.findNext()) ||
(start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
}
cm.setSelection(cursor.from(), cursor.to());
cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 60);
confirmDialog(cm, doReplaceConfirm, "Replace?",
[function() {doReplace(match);}, advance,
function() {replaceAll(cm, query, text)}]);
};
var doReplace = function(match) {
cursor.replace(typeof query == "string" ? text :
text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
advance();
};
advance();
}
});
});
}
CodeMirror.commands.find = function(cm) {doSearch(cm);};
CodeMirror.commands.findPersistent = function(cm) { doSearch(cm, false, true, false, true);};
CodeMirror.commands.findPersistentNext = function(cm) {doSearch(cm, false, true, true);};
CodeMirror.commands.findPersistentPrev = function(cm) {doSearch(cm, true, true, true);};
CodeMirror.commands.findNext = doSearch;
CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
CodeMirror.commands.clearSearch = clearSearch;
// CodeMirror.commands.replace = replace;
// CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
};