overleaf/services/web/public/js/ace/editor.js
2014-02-12 10:23:40 +00:00

2444 lines
77 KiB
JavaScript
Executable file

/* ***** BEGIN LICENSE BLOCK *****
* Distributed under the BSD license:
*
* Copyright (c) 2010, Ajax.org B.V.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Ajax.org B.V. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 AJAX.ORG B.V. 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.
*
* ***** END LICENSE BLOCK ***** */
define(function(require, exports, module) {
"use strict";
require("./lib/fixoldbrowsers");
var oop = require("./lib/oop");
var dom = require("./lib/dom");
var lang = require("./lib/lang");
var useragent = require("./lib/useragent");
var TextInput = require("./keyboard/textinput").TextInput;
var MouseHandler = require("./mouse/mouse_handler").MouseHandler;
var FoldHandler = require("./mouse/fold_handler").FoldHandler;
var KeyBinding = require("./keyboard/keybinding").KeyBinding;
var EditSession = require("./edit_session").EditSession;
var Search = require("./search").Search;
var Range = require("./range").Range;
var EventEmitter = require("./lib/event_emitter").EventEmitter;
var CommandManager = require("./commands/command_manager").CommandManager;
var defaultCommands = require("./commands/default_commands").commands;
var config = require("./config");
/**
* The main entry point into the Ace functionality.
*
* The `Editor` manages the [[EditSession]] (which manages [[Document]]s), as well as the [[VirtualRenderer]], which draws everything to the screen.
*
* Event sessions dealing with the mouse and keyboard are bubbled up from `Document` to the `Editor`, which decides what to do with them.
* @class Editor
**/
/**
* Creates a new `Editor` object.
*
* @param {VirtualRenderer} renderer Associated `VirtualRenderer` that draws everything
* @param {EditSession} session The `EditSession` to refer to
*
*
* @constructor
**/
var Editor = function(renderer, session) {
var container = renderer.getContainerElement();
this.container = container;
this.renderer = renderer;
this.commands = new CommandManager(useragent.isMac ? "mac" : "win", defaultCommands);
this.textInput = new TextInput(renderer.getTextAreaContainer(), this);
this.renderer.textarea = this.textInput.getElement();
this.keyBinding = new KeyBinding(this);
// TODO detect touch event support
this.$mouseHandler = new MouseHandler(this);
new FoldHandler(this);
this.$blockScrolling = 0;
this.$search = new Search().set({
wrap: true
});
this.$historyTracker = this.$historyTracker.bind(this);
this.commands.on("exec", this.$historyTracker);
this.$initOperationListeners();
this._$emitInputEvent = lang.delayedCall(function() {
this._signal("input", {});
this.session.bgTokenizer && this.session.bgTokenizer.scheduleStart();
}.bind(this));
this.on("change", function(_, _self) {
_self._$emitInputEvent.schedule(31);
});
this.setSession(session || new EditSession(""));
config.resetOptions(this);
config._emit("editor", this);
};
(function(){
oop.implement(this, EventEmitter);
this.$initOperationListeners = function() {
function last(a) {return a[a.length - 1]}
this.selections = [];
this.commands.on("exec", function(e) {
this.startOperation(e);
var command = e.command;
if (command.aceCommandGroup == "fileJump") {
var prev = this.prevOp;
if (!prev || prev.command.aceCommandGroup != "fileJump") {
this.lastFileJumpPos = last(this.selections);
}
} else {
this.lastFileJumpPos = null;
}
}.bind(this), true);
this.commands.on("afterExec", function(e) {
var command = e.command;
if (command.aceCommandGroup == "fileJump") {
if (this.lastFileJumpPos && !this.curOp.selectionChanged) {
this.selection.fromJSON(this.lastFileJumpPos);
return;
}
}
this.endOperation(e);
}.bind(this), true);
this.$opResetTimer = lang.delayedCall(this.endOperation.bind(this));
this.on("change", function() {
this.curOp || this.startOperation();
this.curOp.docChanged = true;
}.bind(this), true);
this.on("changeSelection", function() {
this.curOp || this.startOperation();
this.curOp.selectionChanged = true;
}.bind(this), true);
};
this.curOp = null;
this.prevOp = {};
this.startOperation = function(commadEvent) {
if (this.curOp) {
if (!commadEvent || this.curOp.command)
return;
this.prevOp = this.curOp;
}
if (!commadEvent) {
this.previousCommand = null;
commadEvent = {};
}
this.$opResetTimer.schedule();
this.curOp = {
command: commadEvent.command || {},
args: commadEvent.args
};
var command = this.curOp.command;
if (command && command.scrollIntoView)
this.$blockScrolling++;
this.selections.push(this.selection.toJSON());
};
this.endOperation = function() {
if (this.curOp) {
var command = this.curOp.command;
if (command && command.scrollIntoView) {
this.$blockScrolling--;
switch (command.scrollIntoView) {
case "center":
this.renderer.scrollCursorIntoView(null, 0.5);
break;
case "cursor":
this.renderer.scrollCursorIntoView();
break;
case "selectionPart":
this.renderer.scrollCursorIntoView();
break;
default:
break;
}
}
this.prevOp = this.curOp;
this.curOp = null;
}
};
this.$historyTracker = function(e) {
if (!this.$mergeUndoDeltas)
return;
var prev = this.prevOp;
var mergeableCommands = ["backspace", "del", "insertstring"];
// previous command was the same
var shouldMerge = prev.command && (e.command.name == prev.command.name);
if (e.command.name == "insertstring") {
var text = e.args;
if (this.mergeNextCommand === undefined)
this.mergeNextCommand = true;
shouldMerge = shouldMerge
&& this.mergeNextCommand // previous command allows to coalesce with
&& (!/\s/.test(text) || /\s/.test(prev.args)); // previous insertion was of same type
this.mergeNextCommand = true;
} else {
shouldMerge = shouldMerge
&& mergeableCommands.indexOf(e.command.name) !== -1; // the command is mergeable
}
if (
this.$mergeUndoDeltas != "always"
&& Date.now() - this.sequenceStartTime > 2000
) {
shouldMerge = false; // the sequence is too long
}
if (shouldMerge)
this.session.mergeUndoDeltas = true;
else if (mergeableCommands.indexOf(e.command.name) !== -1)
this.sequenceStartTime = Date.now();
};
/**
* Sets a new key handler, such as "vim" or "windows".
* @param {String} keyboardHandler The new key handler
*
*
**/
this.setKeyboardHandler = function(keyboardHandler) {
if (!keyboardHandler) {
this.keyBinding.setKeyboardHandler(null);
} else if (typeof keyboardHandler == "string") {
this.$keybindingId = keyboardHandler;
var _self = this;
config.loadModule(["keybinding", keyboardHandler], function(module) {
if (_self.$keybindingId == keyboardHandler)
_self.keyBinding.setKeyboardHandler(module && module.handler);
});
} else {
this.$keybindingId = null;
this.keyBinding.setKeyboardHandler(keyboardHandler);
}
};
/**
* Returns the keyboard handler, such as "vim" or "windows".
*
* @returns {String}
*
**/
this.getKeyboardHandler = function() {
return this.keyBinding.getKeyboardHandler();
};
/**
* Emitted whenever the [[EditSession]] changes.
* @event changeSession
* @param {Object} e An object with two properties, `oldSession` and `session`, that represent the old and new [[EditSession]]s.
*
*
**/
/**
* Sets a new editsession to use. This method also emits the `'changeSession'` event.
* @param {EditSession} session The new session to use
*
*
**/
this.setSession = function(session) {
if (this.session == session)
return;
if (this.session) {
var oldSession = this.session;
this.session.removeEventListener("change", this.$onDocumentChange);
this.session.removeEventListener("changeMode", this.$onChangeMode);
this.session.removeEventListener("tokenizerUpdate", this.$onTokenizerUpdate);
this.session.removeEventListener("changeTabSize", this.$onChangeTabSize);
this.session.removeEventListener("changeWrapLimit", this.$onChangeWrapLimit);
this.session.removeEventListener("changeWrapMode", this.$onChangeWrapMode);
this.session.removeEventListener("onChangeFold", this.$onChangeFold);
this.session.removeEventListener("changeFrontMarker", this.$onChangeFrontMarker);
this.session.removeEventListener("changeBackMarker", this.$onChangeBackMarker);
this.session.removeEventListener("changeBreakpoint", this.$onChangeBreakpoint);
this.session.removeEventListener("changeAnnotation", this.$onChangeAnnotation);
this.session.removeEventListener("changeOverwrite", this.$onCursorChange);
this.session.removeEventListener("changeScrollTop", this.$onScrollTopChange);
this.session.removeEventListener("changeScrollLeft", this.$onScrollLeftChange);
var selection = this.session.getSelection();
selection.removeEventListener("changeCursor", this.$onCursorChange);
selection.removeEventListener("changeSelection", this.$onSelectionChange);
}
this.session = session;
this.$onDocumentChange = this.onDocumentChange.bind(this);
session.addEventListener("change", this.$onDocumentChange);
this.renderer.setSession(session);
this.$onChangeMode = this.onChangeMode.bind(this);
session.addEventListener("changeMode", this.$onChangeMode);
this.$onTokenizerUpdate = this.onTokenizerUpdate.bind(this);
session.addEventListener("tokenizerUpdate", this.$onTokenizerUpdate);
this.$onChangeTabSize = this.renderer.onChangeTabSize.bind(this.renderer);
session.addEventListener("changeTabSize", this.$onChangeTabSize);
this.$onChangeWrapLimit = this.onChangeWrapLimit.bind(this);
session.addEventListener("changeWrapLimit", this.$onChangeWrapLimit);
this.$onChangeWrapMode = this.onChangeWrapMode.bind(this);
session.addEventListener("changeWrapMode", this.$onChangeWrapMode);
this.$onChangeFold = this.onChangeFold.bind(this);
session.addEventListener("changeFold", this.$onChangeFold);
this.$onChangeFrontMarker = this.onChangeFrontMarker.bind(this);
this.session.addEventListener("changeFrontMarker", this.$onChangeFrontMarker);
this.$onChangeBackMarker = this.onChangeBackMarker.bind(this);
this.session.addEventListener("changeBackMarker", this.$onChangeBackMarker);
this.$onChangeBreakpoint = this.onChangeBreakpoint.bind(this);
this.session.addEventListener("changeBreakpoint", this.$onChangeBreakpoint);
this.$onChangeAnnotation = this.onChangeAnnotation.bind(this);
this.session.addEventListener("changeAnnotation", this.$onChangeAnnotation);
this.$onCursorChange = this.onCursorChange.bind(this);
this.session.addEventListener("changeOverwrite", this.$onCursorChange);
this.$onScrollTopChange = this.onScrollTopChange.bind(this);
this.session.addEventListener("changeScrollTop", this.$onScrollTopChange);
this.$onScrollLeftChange = this.onScrollLeftChange.bind(this);
this.session.addEventListener("changeScrollLeft", this.$onScrollLeftChange);
this.selection = session.getSelection();
this.selection.addEventListener("changeCursor", this.$onCursorChange);
this.$onSelectionChange = this.onSelectionChange.bind(this);
this.selection.addEventListener("changeSelection", this.$onSelectionChange);
this.onChangeMode();
this.$blockScrolling += 1;
this.onCursorChange();
this.$blockScrolling -= 1;
this.onScrollTopChange();
this.onScrollLeftChange();
this.onSelectionChange();
this.onChangeFrontMarker();
this.onChangeBackMarker();
this.onChangeBreakpoint();
this.onChangeAnnotation();
this.session.getUseWrapMode() && this.renderer.adjustWrapLimit();
this.renderer.updateFull();
this._emit("changeSession", {
session: session,
oldSession: oldSession
});
};
/**
* Returns the current session being used.
* @returns {EditSession}
**/
this.getSession = function() {
return this.session;
};
/**
* Sets the current document to `val`.
* @param {String} val The new value to set for the document
* @param {Number} cursorPos Where to set the new value. `undefined` or 0 is selectAll, -1 is at the document start, and 1 is at the end
*
* @returns {String} The current document value
* @related Document.setValue
**/
this.setValue = function(val, cursorPos) {
this.session.doc.setValue(val);
if (!cursorPos)
this.selectAll();
else if (cursorPos == 1)
this.navigateFileEnd();
else if (cursorPos == -1)
this.navigateFileStart();
return val;
};
/**
* Returns the current session's content.
*
* @returns {String}
* @related EditSession.getValue
**/
this.getValue = function() {
return this.session.getValue();
};
/**
*
* Returns the currently highlighted selection.
* @returns {String} The highlighted selection
**/
this.getSelection = function() {
return this.selection;
};
/**
* {:VirtualRenderer.onResize}
* @param {Boolean} force If `true`, recomputes the size, even if the height and width haven't changed
*
*
* @related VirtualRenderer.onResize
**/
this.resize = function(force) {
this.renderer.onResize(force);
};
/**
* {:VirtualRenderer.setTheme}
* @param {String} theme The path to a theme
*
*
**/
this.setTheme = function(theme) {
this.renderer.setTheme(theme);
};
/**
* {:VirtualRenderer.getTheme}
*
* @returns {String} The set theme
* @related VirtualRenderer.getTheme
**/
this.getTheme = function() {
return this.renderer.getTheme();
};
/**
* {:VirtualRenderer.setStyle}
* @param {String} style A class name
*
*
* @related VirtualRenderer.setStyle
**/
this.setStyle = function(style) {
this.renderer.setStyle(style);
};
/**
* {:VirtualRenderer.unsetStyle}
* @related VirtualRenderer.unsetStyle
**/
this.unsetStyle = function(style) {
this.renderer.unsetStyle(style);
};
/**
* Gets the current font size of the editor text.
*/
this.getFontSize = function () {
return this.getOption("fontSize") ||
dom.computedStyle(this.container, "fontSize");
};
/**
* Set a new font size (in pixels) for the editor text.
* @param {String} size A font size ( _e.g._ "12px")
*
*
**/
this.setFontSize = function(size) {
this.setOption("fontSize", size);
};
this.$highlightBrackets = function() {
if (this.session.$bracketHighlight) {
this.session.removeMarker(this.session.$bracketHighlight);
this.session.$bracketHighlight = null;
}
if (this.$highlightPending) {
return;
}
// perform highlight async to not block the browser during navigation
var self = this;
this.$highlightPending = true;
setTimeout(function() {
self.$highlightPending = false;
var pos = self.session.findMatchingBracket(self.getCursorPosition());
if (pos) {
var range = new Range(pos.row, pos.column, pos.row, pos.column+1);
} else if (self.session.$mode.getMatching) {
var range = self.session.$mode.getMatching(self.session);
}
if (range)
self.session.$bracketHighlight = self.session.addMarker(range, "ace_bracket", "text");
}, 50);
};
/**
*
* Brings the current `textInput` into focus.
**/
this.focus = function() {
// Safari needs the timeout
// iOS and Firefox need it called immediately
// to be on the save side we do both
var _self = this;
setTimeout(function() {
_self.textInput.focus();
});
this.textInput.focus();
};
/**
* Returns `true` if the current `textInput` is in focus.
* @return {Boolean}
**/
this.isFocused = function() {
return this.textInput.isFocused();
};
/**
*
* Blurs the current `textInput`.
**/
this.blur = function() {
this.textInput.blur();
};
/**
* Emitted once the editor comes into focus.
* @event focus
*
*
**/
this.onFocus = function() {
if (this.$isFocused)
return;
this.$isFocused = true;
this.renderer.showCursor();
this.renderer.visualizeFocus();
this._emit("focus");
};
/**
* Emitted once the editor has been blurred.
* @event blur
*
*
**/
this.onBlur = function() {
if (!this.$isFocused)
return;
this.$isFocused = false;
this.renderer.hideCursor();
this.renderer.visualizeBlur();
this._emit("blur");
};
this.$cursorChange = function() {
this.renderer.updateCursor();
};
/**
* Emitted whenever the document is changed.
* @event change
* @param {Object} e Contains a single property, `data`, which has the delta of changes
*
*
*
**/
this.onDocumentChange = function(e) {
var delta = e.data;
var range = delta.range;
var lastRow;
if (range.start.row == range.end.row && delta.action != "insertLines" && delta.action != "removeLines")
lastRow = range.end.row;
else
lastRow = Infinity;
this.renderer.updateLines(range.start.row, lastRow);
this._emit("change", e);
// update cursor because tab characters can influence the cursor position
this.$cursorChange();
};
this.onTokenizerUpdate = function(e) {
var rows = e.data;
this.renderer.updateLines(rows.first, rows.last);
};
this.onScrollTopChange = function() {
this.renderer.scrollToY(this.session.getScrollTop());
};
this.onScrollLeftChange = function() {
this.renderer.scrollToX(this.session.getScrollLeft());
};
/**
* Emitted when the selection changes.
*
**/
this.onCursorChange = function() {
this.$cursorChange();
if (!this.$blockScrolling) {
this.renderer.scrollCursorIntoView();
}
this.$highlightBrackets();
this.$updateHighlightActiveLine();
this._emit("changeSelection");
};
this.$updateHighlightActiveLine = function() {
var session = this.getSession();
var highlight;
if (this.$highlightActiveLine) {
if ((this.$selectionStyle != "line" || !this.selection.isMultiLine()))
highlight = this.getCursorPosition();
if (this.renderer.$maxLines && this.session.getLength() === 1)
highlight = false;
}
if (session.$highlightLineMarker && !highlight) {
session.removeMarker(session.$highlightLineMarker.id);
session.$highlightLineMarker = null;
} else if (!session.$highlightLineMarker && highlight) {
var range = new Range(highlight.row, highlight.column, highlight.row, Infinity);
range.id = session.addMarker(range, "ace_active-line", "screenLine");
session.$highlightLineMarker = range;
} else if (highlight) {
session.$highlightLineMarker.start.row = highlight.row;
session.$highlightLineMarker.end.row = highlight.row;
session.$highlightLineMarker.start.column = highlight.column;
session._emit("changeBackMarker");
}
};
this.onSelectionChange = function(e) {
var session = this.session;
if (session.$selectionMarker) {
session.removeMarker(session.$selectionMarker);
}
session.$selectionMarker = null;
if (!this.selection.isEmpty()) {
var range = this.selection.getRange();
var style = this.getSelectionStyle();
session.$selectionMarker = session.addMarker(range, "ace_selection", style);
} else {
this.$updateHighlightActiveLine();
}
var re = this.$highlightSelectedWord && this.$getSelectionHighLightRegexp();
this.session.highlight(re);
this._emit("changeSelection");
};
this.$getSelectionHighLightRegexp = function() {
var session = this.session;
var selection = this.getSelectionRange();
if (selection.isEmpty() || selection.isMultiLine())
return;
var startOuter = selection.start.column - 1;
var endOuter = selection.end.column + 1;
var line = session.getLine(selection.start.row);
var lineCols = line.length;
var needle = line.substring(Math.max(startOuter, 0),
Math.min(endOuter, lineCols));
// Make sure the outer characters are not part of the word.
if ((startOuter >= 0 && /^[\w\d]/.test(needle)) ||
(endOuter <= lineCols && /[\w\d]$/.test(needle)))
return;
needle = line.substring(selection.start.column, selection.end.column);
if (!/^[\w\d]+$/.test(needle))
return;
var re = this.$search.$assembleRegExp({
wholeWord: true,
caseSensitive: true,
needle: needle
});
return re;
};
this.onChangeFrontMarker = function() {
this.renderer.updateFrontMarkers();
};
this.onChangeBackMarker = function() {
this.renderer.updateBackMarkers();
};
this.onChangeBreakpoint = function() {
this.renderer.updateBreakpoints();
};
this.onChangeAnnotation = function() {
this.renderer.setAnnotations(this.session.getAnnotations());
};
this.onChangeMode = function(e) {
this.renderer.updateText();
this._emit("changeMode", e);
};
this.onChangeWrapLimit = function() {
this.renderer.updateFull();
};
this.onChangeWrapMode = function() {
this.renderer.onResize(true);
};
this.onChangeFold = function() {
// Update the active line marker as due to folding changes the current
// line range on the screen might have changed.
this.$updateHighlightActiveLine();
// TODO: This might be too much updating. Okay for now.
this.renderer.updateFull();
};
/**
* Returns the string of text currently highlighted.
* @returns {String}
**/
this.getSelectedText = function() {
return this.session.getTextRange(this.getSelectionRange());
};
/**
* Emitted when text is copied.
* @event copy
* @param {String} text The copied text
*
**/
/**
* Returns the string of text currently highlighted.
* @returns {String}
* @deprecated Use getSelectedText instead.
**/
this.getCopyText = function() {
var text = this.getSelectedText();
this._signal("copy", text);
return text;
};
/**
* Called whenever a text "copy" happens.
**/
this.onCopy = function() {
this.commands.exec("copy", this);
};
/**
* Called whenever a text "cut" happens.
**/
this.onCut = function() {
this.commands.exec("cut", this);
};
/**
* Emitted when text is pasted.
* @event paste
* @param {String} text The pasted text
*
*
**/
/**
* Called whenever a text "paste" happens.
* @param {String} text The pasted text
*
*
**/
this.onPaste = function(text) {
// todo this should change when paste becomes a command
if (this.$readOnly)
return;
this._emit("paste", text);
this.insert(text);
};
this.execCommand = function(command, args) {
this.commands.exec(command, this, args);
};
/**
* Inserts `text` into wherever the cursor is pointing.
* @param {String} text The new text to add
*
*
**/
this.insert = function(text) {
var session = this.session;
var mode = session.getMode();
var cursor = this.getCursorPosition();
if (this.getBehavioursEnabled()) {
// Get a transform if the current mode wants one.
var transform = mode.transformAction(session.getState(cursor.row), 'insertion', this, session, text);
if (transform) {
if (text !== transform.text) {
this.session.mergeUndoDeltas = false;
this.$mergeNextCommand = false;
}
text = transform.text;
}
}
if (text == "\t")
text = this.session.getTabString();
// remove selected text
if (!this.selection.isEmpty()) {
var range = this.getSelectionRange();
cursor = this.session.remove(range);
this.clearSelection();
}
else if (this.session.getOverwrite()) {
var range = new Range.fromPoints(cursor, cursor);
range.end.column += text.length;
this.session.remove(range);
}
if (text == "\n" || text == "\r\n") {
var line = session.getLine(cursor.row)
if (cursor.column > line.search(/\S|$/)) {
var d = line.substr(cursor.column).search(/\S|$/);
session.doc.removeInLine(cursor.row, cursor.column, cursor.column + d);
}
}
this.clearSelection();
var start = cursor.column;
var lineState = session.getState(cursor.row);
var line = session.getLine(cursor.row);
var shouldOutdent = mode.checkOutdent(lineState, line, text);
var end = session.insert(cursor, text);
if (transform && transform.selection) {
if (transform.selection.length == 2) { // Transform relative to the current column
this.selection.setSelectionRange(
new Range(cursor.row, start + transform.selection[0],
cursor.row, start + transform.selection[1]));
} else { // Transform relative to the current row.
this.selection.setSelectionRange(
new Range(cursor.row + transform.selection[0],
transform.selection[1],
cursor.row + transform.selection[2],
transform.selection[3]));
}
}
if (session.getDocument().isNewLine(text)) {
var lineIndent = mode.getNextLineIndent(lineState, line.slice(0, cursor.column), session.getTabString());
session.insert({row: cursor.row+1, column: 0}, lineIndent);
}
if (shouldOutdent)
mode.autoOutdent(lineState, session, cursor.row);
};
this.onTextInput = function(text) {
this.keyBinding.onTextInput(text);
};
this.onCommandKey = function(e, hashId, keyCode) {
this.keyBinding.onCommandKey(e, hashId, keyCode);
};
/**
* Pass in `true` to enable overwrites in your session, or `false` to disable. If overwrites is enabled, any text you enter will type over any text after it. If the value of `overwrite` changes, this function also emites the `changeOverwrite` event.
* @param {Boolean} overwrite Defines wheter or not to set overwrites
*
*
* @related EditSession.setOverwrite
**/
this.setOverwrite = function(overwrite) {
this.session.setOverwrite(overwrite);
};
/**
* Returns `true` if overwrites are enabled; `false` otherwise.
* @returns {Boolean}
* @related EditSession.getOverwrite
**/
this.getOverwrite = function() {
return this.session.getOverwrite();
};
/**
* Sets the value of overwrite to the opposite of whatever it currently is.
* @related EditSession.toggleOverwrite
**/
this.toggleOverwrite = function() {
this.session.toggleOverwrite();
};
/**
* Sets how fast the mouse scrolling should do.
* @param {Number} speed A value indicating the new speed (in milliseconds)
**/
this.setScrollSpeed = function(speed) {
this.setOption("scrollSpeed", speed);
};
/**
* Returns the value indicating how fast the mouse scroll speed is (in milliseconds).
* @returns {Number}
**/
this.getScrollSpeed = function() {
return this.getOption("scrollSpeed");
};
/**
* Sets the delay (in milliseconds) of the mouse drag.
* @param {Number} dragDelay A value indicating the new delay
**/
this.setDragDelay = function(dragDelay) {
this.setOption("dragDelay", dragDelay);
};
/**
* Returns the current mouse drag delay.
* @returns {Number}
**/
this.getDragDelay = function() {
return this.getOption("dragDelay");
};
/**
* Emitted when the selection style changes, via [[Editor.setSelectionStyle]].
* @event changeSelectionStyle
* @param {Object} data Contains one property, `data`, which indicates the new selection style
**/
/**
* Draw selection markers spanning whole line, or only over selected text. Default value is "line"
* @param {String} style The new selection style "line"|"text"
*
**/
this.setSelectionStyle = function(val) {
this.setOption("selectionStyle", val);
};
/**
* Returns the current selection style.
* @returns {String}
**/
this.getSelectionStyle = function() {
return this.getOption("selectionStyle");
};
/**
* Determines whether or not the current line should be highlighted.
* @param {Boolean} shouldHighlight Set to `true` to highlight the current line
**/
this.setHighlightActiveLine = function(shouldHighlight) {
this.setOption("highlightActiveLine", shouldHighlight);
};
/**
* Returns `true` if current lines are always highlighted.
* @return {Boolean}
**/
this.getHighlightActiveLine = function() {
return this.getOption("highlightActiveLine");
};
this.setHighlightGutterLine = function(shouldHighlight) {
this.setOption("highlightGutterLine", shouldHighlight);
};
this.getHighlightGutterLine = function() {
return this.getOption("highlightGutterLine");
};
/**
* Determines if the currently selected word should be highlighted.
* @param {Boolean} shouldHighlight Set to `true` to highlight the currently selected word
*
**/
this.setHighlightSelectedWord = function(shouldHighlight) {
this.setOption("highlightSelectedWord", shouldHighlight);
};
/**
* Returns `true` if currently highlighted words are to be highlighted.
* @returns {Boolean}
**/
this.getHighlightSelectedWord = function() {
return this.$highlightSelectedWord;
};
this.setAnimatedScroll = function(shouldAnimate){
this.renderer.setAnimatedScroll(shouldAnimate);
};
this.getAnimatedScroll = function(){
return this.renderer.getAnimatedScroll();
};
/**
* If `showInvisibles` is set to `true`, invisible characters&mdash;like spaces or new lines&mdash;are show in the editor.
* @param {Boolean} showInvisibles Specifies whether or not to show invisible characters
*
**/
this.setShowInvisibles = function(showInvisibles) {
this.renderer.setShowInvisibles(showInvisibles);
};
/**
* Returns `true` if invisible characters are being shown.
* @returns {Boolean}
**/
this.getShowInvisibles = function() {
return this.renderer.getShowInvisibles();
};
this.setDisplayIndentGuides = function(display) {
this.renderer.setDisplayIndentGuides(display);
};
this.getDisplayIndentGuides = function() {
return this.renderer.getDisplayIndentGuides();
};
/**
* If `showPrintMargin` is set to `true`, the print margin is shown in the editor.
* @param {Boolean} showPrintMargin Specifies whether or not to show the print margin
*
**/
this.setShowPrintMargin = function(showPrintMargin) {
this.renderer.setShowPrintMargin(showPrintMargin);
};
/**
* Returns `true` if the print margin is being shown.
* @returns {Boolean}
**/
this.getShowPrintMargin = function() {
return this.renderer.getShowPrintMargin();
};
/**
* Sets the column defining where the print margin should be.
* @param {Number} showPrintMargin Specifies the new print margin
*
**/
this.setPrintMarginColumn = function(showPrintMargin) {
this.renderer.setPrintMarginColumn(showPrintMargin);
};
/**
* Returns the column number of where the print margin is.
* @returns {Number}
**/
this.getPrintMarginColumn = function() {
return this.renderer.getPrintMarginColumn();
};
/**
* If `readOnly` is true, then the editor is set to read-only mode, and none of the content can change.
* @param {Boolean} readOnly Specifies whether the editor can be modified or not
*
**/
this.setReadOnly = function(readOnly) {
this.setOption("readOnly", readOnly);
};
/**
* Returns `true` if the editor is set to read-only mode.
* @returns {Boolean}
**/
this.getReadOnly = function() {
return this.getOption("readOnly");
};
/**
* Specifies whether to use behaviors or not. ["Behaviors" in this case is the auto-pairing of special characters, like quotation marks, parenthesis, or brackets.]{: #BehaviorsDef}
* @param {Boolean} enabled Enables or disables behaviors
*
**/
this.setBehavioursEnabled = function (enabled) {
this.setOption("behavioursEnabled", enabled);
};
/**
* Returns `true` if the behaviors are currently enabled. {:BehaviorsDef}
*
* @returns {Boolean}
**/
this.getBehavioursEnabled = function () {
return this.getOption("behavioursEnabled");
};
/**
* Specifies whether to use wrapping behaviors or not, i.e. automatically wrapping the selection with characters such as brackets
* when such a character is typed in.
* @param {Boolean} enabled Enables or disables wrapping behaviors
*
**/
this.setWrapBehavioursEnabled = function (enabled) {
this.setOption("wrapBehavioursEnabled", enabled);
};
/**
* Returns `true` if the wrapping behaviors are currently enabled.
**/
this.getWrapBehavioursEnabled = function () {
return this.getOption("wrapBehavioursEnabled");
};
/**
* Indicates whether the fold widgets should be shown or not.
* @param {Boolean} show Specifies whether the fold widgets are shown
**/
this.setShowFoldWidgets = function(show) {
this.setOption("showFoldWidgets", show);
};
/**
* Returns `true` if the fold widgets are shown.
* @return {Boolean}
**/
this.getShowFoldWidgets = function() {
return this.getOption("showFoldWidgets");
};
this.setFadeFoldWidgets = function(fade) {
this.setOption("fadeFoldWidgets", fade);
};
this.getFadeFoldWidgets = function() {
return this.getOption("fadeFoldWidgets");
};
/**
* Removes words of text from the editor. A "word" is defined as a string of characters bookended by whitespace.
* @param {String} dir The direction of the deletion to occur, either "left" or "right"
*
**/
this.remove = function(dir) {
if (this.selection.isEmpty()){
if (dir == "left")
this.selection.selectLeft();
else
this.selection.selectRight();
}
var range = this.getSelectionRange();
if (this.getBehavioursEnabled()) {
var session = this.session;
var state = session.getState(range.start.row);
var new_range = session.getMode().transformAction(state, 'deletion', this, session, range);
if (range.end.column == 0) {
var text = session.getTextRange(range);
if (text[text.length - 1] == "\n") {
var line = session.getLine(range.end.row);
if (/^\s+$/.test(line)) {
range.end.column = line.length;
}
}
}
if (new_range)
range = new_range;
}
this.session.remove(range);
this.clearSelection();
};
/**
* Removes the word directly to the right of the current selection.
**/
this.removeWordRight = function() {
if (this.selection.isEmpty())
this.selection.selectWordRight();
this.session.remove(this.getSelectionRange());
this.clearSelection();
};
/**
* Removes the word directly to the left of the current selection.
**/
this.removeWordLeft = function() {
if (this.selection.isEmpty())
this.selection.selectWordLeft();
this.session.remove(this.getSelectionRange());
this.clearSelection();
};
/**
* Removes all the words to the left of the current selection, until the start of the line.
**/
this.removeToLineStart = function() {
if (this.selection.isEmpty())
this.selection.selectLineStart();
this.session.remove(this.getSelectionRange());
this.clearSelection();
};
/**
* Removes all the words to the right of the current selection, until the end of the line.
**/
this.removeToLineEnd = function() {
if (this.selection.isEmpty())
this.selection.selectLineEnd();
var range = this.getSelectionRange();
if (range.start.column == range.end.column && range.start.row == range.end.row) {
range.end.column = 0;
range.end.row++;
}
this.session.remove(range);
this.clearSelection();
};
/**
* Splits the line at the current selection (by inserting an `'\n'`).
**/
this.splitLine = function() {
if (!this.selection.isEmpty()) {
this.session.remove(this.getSelectionRange());
this.clearSelection();
}
var cursor = this.getCursorPosition();
this.insert("\n");
this.moveCursorToPosition(cursor);
};
/**
* Transposes current line.
**/
this.transposeLetters = function() {
if (!this.selection.isEmpty()) {
return;
}
var cursor = this.getCursorPosition();
var column = cursor.column;
if (column === 0)
return;
var line = this.session.getLine(cursor.row);
var swap, range;
if (column < line.length) {
swap = line.charAt(column) + line.charAt(column-1);
range = new Range(cursor.row, column-1, cursor.row, column+1);
}
else {
swap = line.charAt(column-1) + line.charAt(column-2);
range = new Range(cursor.row, column-2, cursor.row, column);
}
this.session.replace(range, swap);
};
/**
* Converts the current selection entirely into lowercase.
**/
this.toLowerCase = function() {
var originalRange = this.getSelectionRange();
if (this.selection.isEmpty()) {
this.selection.selectWord();
}
var range = this.getSelectionRange();
var text = this.session.getTextRange(range);
this.session.replace(range, text.toLowerCase());
this.selection.setSelectionRange(originalRange);
};
/**
* Converts the current selection entirely into uppercase.
**/
this.toUpperCase = function() {
var originalRange = this.getSelectionRange();
if (this.selection.isEmpty()) {
this.selection.selectWord();
}
var range = this.getSelectionRange();
var text = this.session.getTextRange(range);
this.session.replace(range, text.toUpperCase());
this.selection.setSelectionRange(originalRange);
};
/**
* Inserts an indentation into the current cursor position or indents the selected lines.
*
* @related EditSession.indentRows
**/
this.indent = function() {
var session = this.session;
var range = this.getSelectionRange();
if (range.start.row < range.end.row) {
var rows = this.$getSelectedRows();
session.indentRows(rows.first, rows.last, "\t");
return;
} else if (range.start.column < range.end.column) {
var text = session.getTextRange(range);
if (!/^\s+$/.test(text)) {
var rows = this.$getSelectedRows();
session.indentRows(rows.first, rows.last, "\t");
return;
}
}
var line = session.getLine(range.start.row)
var position = range.start;
var size = session.getTabSize();
var column = session.documentToScreenColumn(position.row, position.column);
if (this.session.getUseSoftTabs()) {
var count = (size - column % size);
var indentString = lang.stringRepeat(" ", count);
} else {
var count = column % size;
while (line[range.start.column] == " " && count) {
range.start.column--;
count--;
}
this.selection.setSelectionRange(range);
indentString = "\t";
}
return this.insert(indentString);
};
/**
* Indents the current line.
* @related EditSession.indentRows
**/
this.blockIndent = function() {
var rows = this.$getSelectedRows();
this.session.indentRows(rows.first, rows.last, "\t");
};
/**
* Outdents the current line.
* @related EditSession.outdentRows
**/
this.blockOutdent = function() {
var selection = this.session.getSelection();
this.session.outdentRows(selection.getRange());
};
// TODO: move out of core when we have good mechanism for managing extensions
this.sortLines = function() {
var rows = this.$getSelectedRows();
var session = this.session;
var lines = [];
for (i = rows.first; i <= rows.last; i++)
lines.push(session.getLine(i));
lines.sort(function(a, b) {
if (a.toLowerCase() < b.toLowerCase()) return -1;
if (a.toLowerCase() > b.toLowerCase()) return 1;
return 0;
});
var deleteRange = new Range(0, 0, 0, 0);
for (var i = rows.first; i <= rows.last; i++) {
var line = session.getLine(i);
deleteRange.start.row = i;
deleteRange.end.row = i;
deleteRange.end.column = line.length;
session.replace(deleteRange, lines[i-rows.first]);
}
};
/**
* Given the currently selected range, this function either comments all the lines, or uncomments all of them.
**/
this.toggleCommentLines = function() {
var state = this.session.getState(this.getCursorPosition().row);
var rows = this.$getSelectedRows();
this.session.getMode().toggleCommentLines(state, this.session, rows.first, rows.last);
};
this.toggleBlockComment = function() {
var cursor = this.getCursorPosition();
var state = this.session.getState(cursor.row);
var range = this.getSelectionRange();
this.session.getMode().toggleBlockComment(state, this.session, range, cursor);
};
/**
* Works like [[EditSession.getTokenAt]], except it returns a number.
* @returns {Number}
**/
this.getNumberAt = function(row, column) {
var _numberRx = /[\-]?[0-9]+(?:\.[0-9]+)?/g;
_numberRx.lastIndex = 0;
var s = this.session.getLine(row);
while (_numberRx.lastIndex < column) {
var m = _numberRx.exec(s);
if(m.index <= column && m.index+m[0].length >= column){
var number = {
value: m[0],
start: m.index,
end: m.index+m[0].length
};
return number;
}
}
return null;
};
/**
* If the character before the cursor is a number, this functions changes its value by `amount`.
* @param {Number} amount The value to change the numeral by (can be negative to decrease value)
*
**/
this.modifyNumber = function(amount) {
var row = this.selection.getCursor().row;
var column = this.selection.getCursor().column;
// get the char before the cursor
var charRange = new Range(row, column-1, row, column);
var c = this.session.getTextRange(charRange);
// if the char is a digit
if (!isNaN(parseFloat(c)) && isFinite(c)) {
// get the whole number the digit is part of
var nr = this.getNumberAt(row, column);
// if number found
if (nr) {
var fp = nr.value.indexOf(".") >= 0 ? nr.start + nr.value.indexOf(".") + 1 : nr.end;
var decimals = nr.start + nr.value.length - fp;
var t = parseFloat(nr.value);
t *= Math.pow(10, decimals);
if(fp !== nr.end && column < fp){
amount *= Math.pow(10, nr.end - column - 1);
} else {
amount *= Math.pow(10, nr.end - column);
}
t += amount;
t /= Math.pow(10, decimals);
var nnr = t.toFixed(decimals);
//update number
var replaceRange = new Range(row, nr.start, row, nr.end);
this.session.replace(replaceRange, nnr);
//reposition the cursor
this.moveCursorTo(row, Math.max(nr.start +1, column + nnr.length - nr.value.length));
}
}
};
/**
* Removes all the lines in the current selection
* @related EditSession.remove
**/
this.removeLines = function() {
var rows = this.$getSelectedRows();
var range;
if (rows.first === 0 || rows.last+1 < this.session.getLength())
range = new Range(rows.first, 0, rows.last+1, 0);
else
range = new Range(
rows.first-1, this.session.getLine(rows.first-1).length,
rows.last, this.session.getLine(rows.last).length
);
this.session.remove(range);
this.clearSelection();
};
this.duplicateSelection = function() {
var sel = this.selection;
var doc = this.session;
var range = sel.getRange();
var reverse = sel.isBackwards();
if (range.isEmpty()) {
var row = range.start.row;
doc.duplicateLines(row, row);
} else {
var point = reverse ? range.start : range.end;
var endPoint = doc.insert(point, doc.getTextRange(range), false);
range.start = point;
range.end = endPoint;
sel.setSelectionRange(range, reverse);
}
};
/**
* Shifts all the selected lines down one row.
*
* @returns {Number} On success, it returns -1.
* @related EditSession.moveLinesUp
**/
this.moveLinesDown = function() {
this.$moveLines(function(firstRow, lastRow) {
return this.session.moveLinesDown(firstRow, lastRow);
});
};
/**
* Shifts all the selected lines up one row.
* @returns {Number} On success, it returns -1.
* @related EditSession.moveLinesDown
**/
this.moveLinesUp = function() {
this.$moveLines(function(firstRow, lastRow) {
return this.session.moveLinesUp(firstRow, lastRow);
});
};
/**
* Moves a range of text from the given range to the given position. `toPosition` is an object that looks like this:
* ```json
* { row: newRowLocation, column: newColumnLocation }
* ```
* @param {Range} fromRange The range of text you want moved within the document
* @param {Object} toPosition The location (row and column) where you want to move the text to
*
* @returns {Range} The new range where the text was moved to.
* @related EditSession.moveText
**/
this.moveText = function(range, toPosition, copy) {
return this.session.moveText(range, toPosition, copy);
};
/**
* Copies all the selected lines up one row.
* @returns {Number} On success, returns 0.
*
**/
this.copyLinesUp = function() {
this.$moveLines(function(firstRow, lastRow) {
this.session.duplicateLines(firstRow, lastRow);
return 0;
});
};
/**
* Copies all the selected lines down one row.
* @returns {Number} On success, returns the number of new rows added; in other words, `lastRow - firstRow + 1`.
* @related EditSession.duplicateLines
*
**/
this.copyLinesDown = function() {
this.$moveLines(function(firstRow, lastRow) {
return this.session.duplicateLines(firstRow, lastRow);
});
};
/**
* Executes a specific function, which can be anything that manipulates selected lines, such as copying them, duplicating them, or shifting them.
* @param {Function} mover A method to call on each selected row
*
*
**/
this.$moveLines = function(mover) {
var selection = this.selection;
if (!selection.inMultiSelectMode || this.inVirtualSelectionMode) {
var range = selection.toOrientedRange();
var rows = this.$getSelectedRows(range);
var linesMoved = mover.call(this, rows.first, rows.last);
range.moveBy(linesMoved, 0);
selection.fromOrientedRange(range);
} else {
var ranges = selection.rangeList.ranges;
selection.rangeList.detach(this.session);
for (var i = ranges.length; i--; ) {
var rangeIndex = i;
var rows = ranges[i].collapseRows();
var last = rows.end.row;
var first = rows.start.row;
while (i--) {
var rows = ranges[i].collapseRows();
if (first - rows.end.row <= 1)
first = rows.end.row;
else
break;
}
i++;
var linesMoved = mover.call(this, first, last);
while (rangeIndex >= i) {
ranges[rangeIndex].moveBy(linesMoved, 0);
rangeIndex--;
}
}
selection.fromOrientedRange(selection.ranges[0]);
selection.rangeList.attach(this.session);
}
};
/**
* Returns an object indicating the currently selected rows. The object looks like this:
*
* ```json
* { first: range.start.row, last: range.end.row }
* ```
*
* @returns {Object}
**/
this.$getSelectedRows = function() {
var range = this.getSelectionRange().collapseRows();
return {
first: this.session.getRowFoldStart(range.start.row),
last: this.session.getRowFoldEnd(range.end.row)
};
};
this.onCompositionStart = function(text) {
this.renderer.showComposition(this.getCursorPosition());
};
this.onCompositionUpdate = function(text) {
this.renderer.setCompositionText(text);
};
this.onCompositionEnd = function() {
this.renderer.hideComposition();
};
/**
* {:VirtualRenderer.getFirstVisibleRow}
*
* @returns {Number}
* @related VirtualRenderer.getFirstVisibleRow
**/
this.getFirstVisibleRow = function() {
return this.renderer.getFirstVisibleRow();
};
/**
* {:VirtualRenderer.getLastVisibleRow}
*
* @returns {Number}
* @related VirtualRenderer.getLastVisibleRow
**/
this.getLastVisibleRow = function() {
return this.renderer.getLastVisibleRow();
};
/**
* Indicates if the row is currently visible on the screen.
* @param {Number} row The row to check
*
* @returns {Boolean}
**/
this.isRowVisible = function(row) {
return (row >= this.getFirstVisibleRow() && row <= this.getLastVisibleRow());
};
/**
* Indicates if the entire row is currently visible on the screen.
* @param {Number} row The row to check
*
*
* @returns {Boolean}
**/
this.isRowFullyVisible = function(row) {
return (row >= this.renderer.getFirstFullyVisibleRow() && row <= this.renderer.getLastFullyVisibleRow());
};
/**
* Returns the number of currently visibile rows.
* @returns {Number}
**/
this.$getVisibleRowCount = function() {
return this.renderer.getScrollBottomRow() - this.renderer.getScrollTopRow() + 1;
};
this.$moveByPage = function(dir, select) {
var renderer = this.renderer;
var config = this.renderer.layerConfig;
var rows = dir * Math.floor(config.height / config.lineHeight);
this.$blockScrolling++;
if (select == true) {
this.selection.$moveSelection(function(){
this.moveCursorBy(rows, 0);
});
} else if (select == false) {
this.selection.moveCursorBy(rows, 0);
this.selection.clearSelection();
}
this.$blockScrolling--;
var scrollTop = renderer.scrollTop;
renderer.scrollBy(0, rows * config.lineHeight);
if (select != null)
renderer.scrollCursorIntoView(null, 0.5);
renderer.animateScrolling(scrollTop);
};
/**
* Selects the text from the current position of the document until where a "page down" finishes.
**/
this.selectPageDown = function() {
this.$moveByPage(1, true);
};
/**
* Selects the text from the current position of the document until where a "page up" finishes.
**/
this.selectPageUp = function() {
this.$moveByPage(-1, true);
};
/**
* Shifts the document to wherever "page down" is, as well as moving the cursor position.
**/
this.gotoPageDown = function() {
this.$moveByPage(1, false);
};
/**
* Shifts the document to wherever "page up" is, as well as moving the cursor position.
**/
this.gotoPageUp = function() {
this.$moveByPage(-1, false);
};
/**
* Scrolls the document to wherever "page down" is, without changing the cursor position.
**/
this.scrollPageDown = function() {
this.$moveByPage(1);
};
/**
* Scrolls the document to wherever "page up" is, without changing the cursor position.
**/
this.scrollPageUp = function() {
this.$moveByPage(-1);
};
/**
* Moves the editor to the specified row.
* @related VirtualRenderer.scrollToRow
**/
this.scrollToRow = function(row) {
this.renderer.scrollToRow(row);
};
/**
* Scrolls to a line. If `center` is `true`, it puts the line in middle of screen (or attempts to).
* @param {Number} line The line to scroll to
* @param {Boolean} center If `true`
* @param {Boolean} animate If `true` animates scrolling
* @param {Function} callback Function to be called when the animation has finished
*
*
* @related VirtualRenderer.scrollToLine
**/
this.scrollToLine = function(line, center, animate, callback) {
this.renderer.scrollToLine(line, center, animate, callback);
};
/**
* Attempts to center the current selection on the screen.
**/
this.centerSelection = function() {
var range = this.getSelectionRange();
var pos = {
row: Math.floor(range.start.row + (range.end.row - range.start.row) / 2),
column: Math.floor(range.start.column + (range.end.column - range.start.column) / 2)
};
this.renderer.alignCursor(pos, 0.5);
};
/**
* Gets the current position of the cursor.
* @returns {Object} An object that looks something like this:
*
* ```json
* { row: currRow, column: currCol }
* ```
*
* @related Selection.getCursor
**/
this.getCursorPosition = function() {
return this.selection.getCursor();
};
/**
* Returns the screen position of the cursor.
* @returns {Number}
* @related EditSession.documentToScreenPosition
**/
this.getCursorPositionScreen = function() {
return this.session.documentToScreenPosition(this.getCursorPosition());
};
/**
* {:Selection.getRange}
* @returns {Range}
* @related Selection.getRange
**/
this.getSelectionRange = function() {
return this.selection.getRange();
};
/**
* Selects all the text in editor.
* @related Selection.selectAll
**/
this.selectAll = function() {
this.$blockScrolling += 1;
this.selection.selectAll();
this.$blockScrolling -= 1;
};
/**
* {:Selection.clearSelection}
* @related Selection.clearSelection
**/
this.clearSelection = function() {
this.selection.clearSelection();
};
/**
* Moves the cursor to the specified row and column. Note that this does not de-select the current selection.
* @param {Number} row The new row number
* @param {Number} column The new column number
*
*
* @related Selection.moveCursorTo
**/
this.moveCursorTo = function(row, column) {
this.selection.moveCursorTo(row, column);
};
/**
* Moves the cursor to the position indicated by `pos.row` and `pos.column`.
* @param {Object} pos An object with two properties, row and column
*
*
* @related Selection.moveCursorToPosition
**/
this.moveCursorToPosition = function(pos) {
this.selection.moveCursorToPosition(pos);
};
/**
* Moves the cursor's row and column to the next matching bracket.
*
**/
this.jumpToMatching = function(select) {
var cursor = this.getCursorPosition();
var range = this.session.getBracketRange(cursor);
if (!range) {
range = this.find({
needle: /[{}()\[\]]/g,
preventScroll:true,
start: {row: cursor.row, column: cursor.column - 1}
});
if (!range)
return;
var pos = range.start;
if (pos.row == cursor.row && Math.abs(pos.column - cursor.column) < 2)
range = this.session.getBracketRange(pos);
}
pos = range && range.cursor || pos;
if (pos) {
if (select) {
if (range && range.isEqual(this.getSelectionRange()))
this.clearSelection();
else
this.selection.selectTo(pos.row, pos.column);
} else {
this.clearSelection();
this.moveCursorTo(pos.row, pos.column);
}
}
};
/**
* Moves the cursor to the specified line number, and also into the indiciated column.
* @param {Number} lineNumber The line number to go to
* @param {Number} column A column number to go to
* @param {Boolean} animate If `true` animates scolling
*
**/
this.gotoLine = function(lineNumber, column, animate) {
this.selection.clearSelection();
this.session.unfold({row: lineNumber - 1, column: column || 0});
this.$blockScrolling += 1;
// todo: find a way to automatically exit multiselect mode
this.exitMultiSelectMode && this.exitMultiSelectMode();
this.moveCursorTo(lineNumber - 1, column || 0);
this.$blockScrolling -= 1;
if (!this.isRowFullyVisible(lineNumber - 1))
this.scrollToLine(lineNumber - 1, true, animate);
};
/**
* Moves the cursor to the specified row and column. Note that this does de-select the current selection.
* @param {Number} row The new row number
* @param {Number} column The new column number
*
*
* @related Editor.moveCursorTo
**/
this.navigateTo = function(row, column) {
this.clearSelection();
this.moveCursorTo(row, column);
};
/**
* Moves the cursor up in the document the specified number of times. Note that this does de-select the current selection.
* @param {Number} times The number of times to change navigation
*
*
**/
this.navigateUp = function(times) {
if (this.selection.isMultiLine() && !this.selection.isBackwards()) {
var selectionStart = this.selection.anchor.getPosition();
return this.moveCursorToPosition(selectionStart);
}
this.selection.clearSelection();
times = times || 1;
this.selection.moveCursorBy(-times, 0);
};
/**
* Moves the cursor down in the document the specified number of times. Note that this does de-select the current selection.
* @param {Number} times The number of times to change navigation
*
*
**/
this.navigateDown = function(times) {
if (this.selection.isMultiLine() && this.selection.isBackwards()) {
var selectionEnd = this.selection.anchor.getPosition();
return this.moveCursorToPosition(selectionEnd);
}
this.selection.clearSelection();
times = times || 1;
this.selection.moveCursorBy(times, 0);
};
/**
* Moves the cursor left in the document the specified number of times. Note that this does de-select the current selection.
* @param {Number} times The number of times to change navigation
*
*
**/
this.navigateLeft = function(times) {
if (!this.selection.isEmpty()) {
var selectionStart = this.getSelectionRange().start;
this.moveCursorToPosition(selectionStart);
}
else {
times = times || 1;
while (times--) {
this.selection.moveCursorLeft();
}
}
this.clearSelection();
};
/**
* Moves the cursor right in the document the specified number of times. Note that this does de-select the current selection.
* @param {Number} times The number of times to change navigation
*
*
**/
this.navigateRight = function(times) {
if (!this.selection.isEmpty()) {
var selectionEnd = this.getSelectionRange().end;
this.moveCursorToPosition(selectionEnd);
}
else {
times = times || 1;
while (times--) {
this.selection.moveCursorRight();
}
}
this.clearSelection();
};
/**
*
* Moves the cursor to the start of the current line. Note that this does de-select the current selection.
**/
this.navigateLineStart = function() {
this.selection.moveCursorLineStart();
this.clearSelection();
};
/**
*
* Moves the cursor to the end of the current line. Note that this does de-select the current selection.
**/
this.navigateLineEnd = function() {
this.selection.moveCursorLineEnd();
this.clearSelection();
};
/**
*
* Moves the cursor to the end of the current file. Note that this does de-select the current selection.
**/
this.navigateFileEnd = function() {
var scrollTop = this.renderer.scrollTop;
this.selection.moveCursorFileEnd();
this.clearSelection();
this.renderer.animateScrolling(scrollTop);
};
/**
*
* Moves the cursor to the start of the current file. Note that this does de-select the current selection.
**/
this.navigateFileStart = function() {
var scrollTop = this.renderer.scrollTop;
this.selection.moveCursorFileStart();
this.clearSelection();
this.renderer.animateScrolling(scrollTop);
};
/**
*
* Moves the cursor to the word immediately to the right of the current position. Note that this does de-select the current selection.
**/
this.navigateWordRight = function() {
this.selection.moveCursorWordRight();
this.clearSelection();
};
/**
*
* Moves the cursor to the word immediately to the left of the current position. Note that this does de-select the current selection.
**/
this.navigateWordLeft = function() {
this.selection.moveCursorWordLeft();
this.clearSelection();
};
/**
* Replaces the first occurance of `options.needle` with the value in `replacement`.
* @param {String} replacement The text to replace with
* @param {Object} options The [[Search `Search`]] options to use
*
*
**/
this.replace = function(replacement, options) {
if (options)
this.$search.set(options);
var range = this.$search.find(this.session);
var replaced = 0;
if (!range)
return replaced;
if (this.$tryReplace(range, replacement)) {
replaced = 1;
}
if (range !== null) {
this.selection.setSelectionRange(range);
this.renderer.scrollSelectionIntoView(range.start, range.end);
}
return replaced;
};
/**
* Replaces all occurances of `options.needle` with the value in `replacement`.
* @param {String} replacement The text to replace with
* @param {Object} options The [[Search `Search`]] options to use
*
*
**/
this.replaceAll = function(replacement, options) {
if (options) {
this.$search.set(options);
}
var ranges = this.$search.findAll(this.session);
var replaced = 0;
if (!ranges.length)
return replaced;
this.$blockScrolling += 1;
var selection = this.getSelectionRange();
this.clearSelection();
this.selection.moveCursorTo(0, 0);
for (var i = ranges.length - 1; i >= 0; --i) {
if(this.$tryReplace(ranges[i], replacement)) {
replaced++;
}
}
this.selection.setSelectionRange(selection);
this.$blockScrolling -= 1;
return replaced;
};
this.$tryReplace = function(range, replacement) {
var input = this.session.getTextRange(range);
replacement = this.$search.replace(input, replacement);
if (replacement !== null) {
range.end = this.session.replace(range, replacement);
return range;
} else {
return null;
}
};
/**
* {:Search.getOptions} For more information on `options`, see [[Search `Search`]].
* @related Search.getOptions
* @returns {Object}
**/
this.getLastSearchOptions = function() {
return this.$search.getOptions();
};
/**
* Attempts to find `needle` within the document. For more information on `options`, see [[Search `Search`]].
* @param {String} needle The text to search for (optional)
* @param {Object} options An object defining various search properties
* @param {Boolean} animate If `true` animate scrolling
*
*
* @related Search.find
**/
this.find = function(needle, options, animate) {
if (!options)
options = {};
if (typeof needle == "string" || needle instanceof RegExp)
options.needle = needle;
else if (typeof needle == "object")
oop.mixin(options, needle);
var range = this.selection.getRange();
if (options.needle == null) {
needle = this.session.getTextRange(range)
|| this.$search.$options.needle;
if (!needle) {
range = this.session.getWordRange(range.start.row, range.start.column);
needle = this.session.getTextRange(range);
}
this.$search.set({needle: needle});
}
this.$search.set(options);
if (!options.start)
this.$search.set({start: range});
var newRange = this.$search.find(this.session);
if (options.preventScroll)
return newRange;
if (newRange) {
this.revealRange(newRange, animate);
return newRange;
}
// clear selection if nothing is found
if (options.backwards)
range.start = range.end;
else
range.end = range.start;
this.selection.setRange(range);
};
/**
* Performs another search for `needle` in the document. For more information on `options`, see [[Search `Search`]].
* @param {Object} options search options
* @param {Boolean} animate If `true` animate scrolling
*
*
* @related Editor.find
**/
this.findNext = function(options, animate) {
this.find({skipCurrent: true, backwards: false}, options, animate);
};
/**
* Performs a search for `needle` backwards. For more information on `options`, see [[Search `Search`]].
* @param {Object} options search options
* @param {Boolean} animate If `true` animate scrolling
*
*
* @related Editor.find
**/
this.findPrevious = function(options, animate) {
this.find(options, {skipCurrent: true, backwards: true}, animate);
};
this.revealRange = function(range, animate) {
this.$blockScrolling += 1;
this.session.unfold(range);
this.selection.setSelectionRange(range);
this.$blockScrolling -= 1;
var scrollTop = this.renderer.scrollTop;
this.renderer.scrollSelectionIntoView(range.start, range.end, 0.5);
if (animate != false)
this.renderer.animateScrolling(scrollTop);
};
/**
* {:UndoManager.undo}
* @related UndoManager.undo
**/
this.undo = function() {
this.$blockScrolling++;
this.session.getUndoManager().undo();
this.$blockScrolling--;
this.renderer.scrollCursorIntoView(null, 0.5);
};
/**
* {:UndoManager.redo}
* @related UndoManager.redo
**/
this.redo = function() {
this.$blockScrolling++;
this.session.getUndoManager().redo();
this.$blockScrolling--;
this.renderer.scrollCursorIntoView(null, 0.5);
};
/**
*
* Cleans up the entire editor.
**/
this.destroy = function() {
this.renderer.destroy();
this._emit("destroy", this);
};
/**
* Enables automatic scrolling of the cursor into view when editor itself is inside scrollable element
* @param {Boolean} enable default true
**/
this.setAutoScrollEditorIntoView = function(enable) {
if (enable === false)
return;
var rect;
var self = this;
var shouldScroll = false;
if (!this.$scrollAnchor)
this.$scrollAnchor = document.createElement("div");
var scrollAnchor = this.$scrollAnchor;
scrollAnchor.style.cssText = "position:absolute";
this.container.insertBefore(scrollAnchor, this.container.firstChild);
var onChangeSelection = this.on("changeSelection", function() {
shouldScroll = true;
});
// needed to not trigger sync reflow
var onBeforeRender = this.renderer.on("beforeRender", function() {
if (shouldScroll)
rect = self.renderer.container.getBoundingClientRect();
});
var onAfterRender = this.renderer.on("afterRender", function() {
if (shouldScroll && rect && self.isFocused()) {
var renderer = self.renderer;
var pos = renderer.$cursorLayer.$pixelPos;
var config = renderer.layerConfig;
var top = pos.top - config.offset;
if (pos.top >= 0 && top + rect.top < 0) {
shouldScroll = true;
} else if (pos.top < config.height &&
pos.top + rect.top + config.lineHeight > window.innerHeight) {
shouldScroll = false;
} else {
shouldScroll = null;
}
if (shouldScroll != null) {
scrollAnchor.style.top = top + "px";
scrollAnchor.style.left = pos.left + "px";
scrollAnchor.style.height = config.lineHeight + "px";
scrollAnchor.scrollIntoView(shouldScroll);
}
shouldScroll = rect = null;
}
});
this.setAutoScrollEditorIntoView = function(enable) {
if (enable === true)
return;
delete this.setAutoScrollEditorIntoView;
this.removeEventListener("changeSelection", onChangeSelection);
this.renderer.removeEventListener("afterRender", onAfterRender);
this.renderer.removeEventListener("beforeRender", onBeforeRender);
};
};
this.$resetCursorStyle = function() {
var style = this.$cursorStyle || "ace";
var cursorLayer = this.renderer.$cursorLayer;
if (!cursorLayer)
return;
cursorLayer.setSmoothBlinking(style == "smooth");
cursorLayer.isBlinking = !this.$readOnly && style != "wide";
};
}).call(Editor.prototype);
config.defineOptions(Editor.prototype, "editor", {
selectionStyle: {
set: function(style) {
this.onSelectionChange();
this._emit("changeSelectionStyle", {data: style});
},
initialValue: "line"
},
highlightActiveLine: {
set: function() {this.$updateHighlightActiveLine();},
initialValue: true
},
highlightSelectedWord: {
set: function(shouldHighlight) {this.$onSelectionChange();},
initialValue: true
},
readOnly: {
set: function(readOnly) {
this.textInput.setReadOnly(readOnly);
this.$resetCursorStyle();
},
initialValue: false
},
cursorStyle: {
set: function(val) { this.$resetCursorStyle(); },
values: ["ace", "slim", "smooth", "wide"],
initialValue: "ace"
},
mergeUndoDeltas: {
values: [false, true, "always"],
initialValue: true
},
behavioursEnabled: {initialValue: true},
wrapBehavioursEnabled: {initialValue: true},
hScrollBarAlwaysVisible: "renderer",
vScrollBarAlwaysVisible: "renderer",
highlightGutterLine: "renderer",
animatedScroll: "renderer",
showInvisibles: "renderer",
showPrintMargin: "renderer",
printMarginColumn: "renderer",
printMargin: "renderer",
fadeFoldWidgets: "renderer",
showFoldWidgets: "renderer",
showGutter: "renderer",
displayIndentGuides: "renderer",
fontSize: "renderer",
fontFamily: "renderer",
maxLines: "renderer",
minLines: "renderer",
scrollPastEnd: "renderer",
fixedWidthGutter: "renderer",
scrollSpeed: "$mouseHandler",
dragDelay: "$mouseHandler",
dragEnabled: "$mouseHandler",
focusTimout: "$mouseHandler",
firstLineNumber: "session",
overwrite: "session",
newLineMode: "session",
useWorker: "session",
useSoftTabs: "session",
tabSize: "session",
wrap: "session",
foldStyle: "session"
});
exports.Editor = Editor;
});