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667 lines
24 KiB
JavaScript
Executable file
667 lines
24 KiB
JavaScript
Executable file
/* ***** BEGIN LICENSE BLOCK *****
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* Distributed under the BSD license:
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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"use strict";
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var oop = require("../lib/oop");
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var dom = require("../lib/dom");
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var lang = require("../lib/lang");
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var useragent = require("../lib/useragent");
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var EventEmitter = require("../lib/event_emitter").EventEmitter;
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var Text = function(parentEl) {
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this.element = dom.createElement("div");
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this.element.className = "ace_layer ace_text-layer";
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parentEl.appendChild(this.element);
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this.$characterSize = {width: 0, height: 0};
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this.checkForSizeChanges();
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this.$pollSizeChanges();
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};
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(function() {
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oop.implement(this, EventEmitter);
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this.EOF_CHAR = "\xB6"; //"¶";
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this.EOL_CHAR = "\xAC"; //"¬";
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this.TAB_CHAR = "\u2192"; //"→" "\u21E5";
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this.SPACE_CHAR = "\xB7"; //"·";
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this.$padding = 0;
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this.setPadding = function(padding) {
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this.$padding = padding;
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this.element.style.padding = "0 " + padding + "px";
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};
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this.getLineHeight = function() {
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return this.$characterSize.height || 0;
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};
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this.getCharacterWidth = function() {
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return this.$characterSize.width || 0;
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};
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this.checkForSizeChanges = function() {
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var size = this.$measureSizes();
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if (size && (this.$characterSize.width !== size.width || this.$characterSize.height !== size.height)) {
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this.$measureNode.style.fontWeight = "bold";
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var boldSize = this.$measureSizes();
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this.$measureNode.style.fontWeight = "";
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this.$characterSize = size;
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this.allowBoldFonts = boldSize && boldSize.width === size.width && boldSize.height === size.height;
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this._emit("changeCharacterSize", {data: size});
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}
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};
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this.$pollSizeChanges = function() {
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var self = this;
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this.$pollSizeChangesTimer = setInterval(function() {
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self.checkForSizeChanges();
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}, 500);
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};
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this.$fontStyles = {
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fontFamily : 1,
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fontSize : 1,
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fontWeight : 1,
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fontStyle : 1,
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lineHeight : 1
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};
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this.$measureSizes = useragent.isIE || useragent.isOldGecko ? function() {
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var n = 1000;
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if (!this.$measureNode) {
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var measureNode = this.$measureNode = dom.createElement("div");
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var style = measureNode.style;
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style.width = style.height = "auto";
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style.left = style.top = (-n * 40) + "px";
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style.visibility = "hidden";
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style.position = "fixed";
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style.overflow = "visible";
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style.whiteSpace = "nowrap";
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// in FF 3.6 monospace fonts can have a fixed sub pixel width.
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// that's why we have to measure many characters
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// Note: characterWidth can be a float!
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measureNode.innerHTML = lang.stringRepeat("Xy", n);
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if (this.element.ownerDocument.body) {
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this.element.ownerDocument.body.appendChild(measureNode);
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} else {
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var container = this.element.parentNode;
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while (!dom.hasCssClass(container, "ace_editor"))
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container = container.parentNode;
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container.appendChild(measureNode);
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}
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}
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// Size and width can be null if the editor is not visible or
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// detached from the document
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if (!this.element.offsetWidth)
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return null;
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var style = this.$measureNode.style;
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var computedStyle = dom.computedStyle(this.element);
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for (var prop in this.$fontStyles)
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style[prop] = computedStyle[prop];
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var size = {
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height: this.$measureNode.offsetHeight,
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width: this.$measureNode.offsetWidth / (n * 2)
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};
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// Size and width can be null if the editor is not visible or
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// detached from the document
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if (size.width == 0 || size.height == 0)
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return null;
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return size;
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}
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: function() {
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if (!this.$measureNode) {
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var measureNode = this.$measureNode = dom.createElement("div");
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var style = measureNode.style;
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style.width = style.height = "auto";
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style.left = style.top = -100 + "px";
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style.visibility = "hidden";
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style.position = "fixed";
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style.overflow = "visible";
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style.whiteSpace = "nowrap";
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// fixes fractional fixed-width fonts; see http://git.io/CavZNw
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measureNode.innerHTML = lang.stringRepeat("X", 100);
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var container = this.element.parentNode;
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while (container && !dom.hasCssClass(container, "ace_editor"))
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container = container.parentNode;
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if (!container)
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return this.$measureNode = null;
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container.appendChild(measureNode);
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}
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var rect = this.$measureNode.getBoundingClientRect();
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var size = {
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height: rect.height,
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width: rect.width / 100
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};
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// Size and width can be null if the editor is not visible or
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// detached from the document
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if (size.width == 0 || size.height == 0)
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return null;
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return size;
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};
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this.setSession = function(session) {
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this.session = session;
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this.$computeTabString();
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};
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this.showInvisibles = false;
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this.setShowInvisibles = function(showInvisibles) {
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if (this.showInvisibles == showInvisibles)
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return false;
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this.showInvisibles = showInvisibles;
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this.$computeTabString();
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return true;
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};
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this.displayIndentGuides = true;
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this.setDisplayIndentGuides = function(display) {
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if (this.displayIndentGuides == display)
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return false;
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this.displayIndentGuides = display;
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this.$computeTabString();
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return true;
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};
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this.$tabStrings = [];
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this.onChangeTabSize =
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this.$computeTabString = function() {
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var tabSize = this.session.getTabSize();
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this.tabSize = tabSize;
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var tabStr = this.$tabStrings = [0];
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for (var i = 1; i < tabSize + 1; i++) {
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if (this.showInvisibles) {
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tabStr.push("<span class='ace_invisible'>"
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+ this.TAB_CHAR
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+ lang.stringRepeat("\xa0", i - 1)
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+ "</span>");
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} else {
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tabStr.push(lang.stringRepeat("\xa0", i));
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}
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}
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if (this.displayIndentGuides) {
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this.$indentGuideRe = /\s\S| \t|\t |\s$/;
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var className = "ace_indent-guide";
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if (this.showInvisibles) {
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className += " ace_invisible";
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var spaceContent = lang.stringRepeat(this.SPACE_CHAR, this.tabSize);
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var tabContent = this.TAB_CHAR + lang.stringRepeat("\xa0", this.tabSize - 1);
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} else{
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var spaceContent = lang.stringRepeat("\xa0", this.tabSize);
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var tabContent = spaceContent;
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}
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this.$tabStrings[" "] = "<span class='" + className + "'>" + spaceContent + "</span>";
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this.$tabStrings["\t"] = "<span class='" + className + "'>" + tabContent + "</span>";
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}
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};
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this.updateLines = function(config, firstRow, lastRow) {
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// Due to wrap line changes there can be new lines if e.g.
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// the line to updated wrapped in the meantime.
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if (this.config.lastRow != config.lastRow ||
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this.config.firstRow != config.firstRow) {
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this.scrollLines(config);
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}
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this.config = config;
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var first = Math.max(firstRow, config.firstRow);
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var last = Math.min(lastRow, config.lastRow);
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var lineElements = this.element.childNodes;
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var lineElementsIdx = 0;
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for (var row = config.firstRow; row < first; row++) {
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var foldLine = this.session.getFoldLine(row);
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if (foldLine) {
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if (foldLine.containsRow(first)) {
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first = foldLine.start.row;
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break;
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} else {
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row = foldLine.end.row;
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}
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}
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lineElementsIdx ++;
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}
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var row = first;
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var foldLine = this.session.getNextFoldLine(row);
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var foldStart = foldLine ? foldLine.start.row : Infinity;
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while (true) {
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if (row > foldStart) {
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row = foldLine.end.row+1;
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foldLine = this.session.getNextFoldLine(row, foldLine);
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foldStart = foldLine ? foldLine.start.row :Infinity;
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}
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if (row > last)
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break;
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var lineElement = lineElements[lineElementsIdx++];
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if (lineElement) {
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var html = [];
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this.$renderLine(
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html, row, !this.$useLineGroups(), row == foldStart ? foldLine : false
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);
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lineElement.style.height = config.lineHeight * this.session.getRowLength(row) + "px";
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dom.setInnerHtml(lineElement, html.join(""));
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}
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row++;
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}
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};
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this.scrollLines = function(config) {
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var oldConfig = this.config;
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this.config = config;
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if (!oldConfig || oldConfig.lastRow < config.firstRow)
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return this.update(config);
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if (config.lastRow < oldConfig.firstRow)
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return this.update(config);
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var el = this.element;
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if (oldConfig.firstRow < config.firstRow)
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for (var row=this.session.getFoldedRowCount(oldConfig.firstRow, config.firstRow - 1); row>0; row--)
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el.removeChild(el.firstChild);
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if (oldConfig.lastRow > config.lastRow)
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for (var row=this.session.getFoldedRowCount(config.lastRow + 1, oldConfig.lastRow); row>0; row--)
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el.removeChild(el.lastChild);
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if (config.firstRow < oldConfig.firstRow) {
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var fragment = this.$renderLinesFragment(config, config.firstRow, oldConfig.firstRow - 1);
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if (el.firstChild)
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el.insertBefore(fragment, el.firstChild);
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else
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el.appendChild(fragment);
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}
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if (config.lastRow > oldConfig.lastRow) {
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var fragment = this.$renderLinesFragment(config, oldConfig.lastRow + 1, config.lastRow);
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el.appendChild(fragment);
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}
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};
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this.$renderLinesFragment = function(config, firstRow, lastRow) {
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var fragment = this.element.ownerDocument.createDocumentFragment();
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var row = firstRow;
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var foldLine = this.session.getNextFoldLine(row);
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var foldStart = foldLine ? foldLine.start.row : Infinity;
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while (true) {
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if (row > foldStart) {
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row = foldLine.end.row+1;
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foldLine = this.session.getNextFoldLine(row, foldLine);
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foldStart = foldLine ? foldLine.start.row : Infinity;
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}
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if (row > lastRow)
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break;
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var container = dom.createElement("div");
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var html = [];
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// Get the tokens per line as there might be some lines in between
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// beeing folded.
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this.$renderLine(html, row, false, row == foldStart ? foldLine : false);
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// don't use setInnerHtml since we are working with an empty DIV
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container.innerHTML = html.join("");
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if (this.$useLineGroups()) {
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container.className = 'ace_line_group';
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fragment.appendChild(container);
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container.style.height = config.lineHeight * this.session.getRowLength(row) + "px";
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} else {
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var lines = container.childNodes
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while(lines.length)
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fragment.appendChild(lines[0]);
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}
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row++;
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}
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return fragment;
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};
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this.update = function(config) {
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this.config = config;
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var html = [];
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var firstRow = config.firstRow, lastRow = config.lastRow;
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var row = firstRow;
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var foldLine = this.session.getNextFoldLine(row);
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var foldStart = foldLine ? foldLine.start.row : Infinity;
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while (true) {
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if (row > foldStart) {
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row = foldLine.end.row+1;
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foldLine = this.session.getNextFoldLine(row, foldLine);
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foldStart = foldLine ? foldLine.start.row :Infinity;
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}
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if (row > lastRow)
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break;
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if (this.$useLineGroups())
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html.push("<div class='ace_line_group' style='height:", config.lineHeight*this.session.getRowLength(row), "px'>")
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this.$renderLine(html, row, false, row == foldStart ? foldLine : false);
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if (this.$useLineGroups())
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html.push("</div>"); // end the line group
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row++;
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}
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this.element = dom.setInnerHtml(this.element, html.join(""));
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};
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this.$textToken = {
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"text": true,
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"rparen": true,
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"lparen": true
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};
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this.$renderToken = function(stringBuilder, screenColumn, token, value) {
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var self = this;
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var replaceReg = /\t|&|<|( +)|([\x00-\x1f\x80-\xa0\u1680\u180E\u2000-\u200f\u2028\u2029\u202F\u205F\u3000\uFEFF])|[\u1100-\u115F\u11A3-\u11A7\u11FA-\u11FF\u2329-\u232A\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFB\u3000-\u303E\u3041-\u3096\u3099-\u30FF\u3105-\u312D\u3131-\u318E\u3190-\u31BA\u31C0-\u31E3\u31F0-\u321E\u3220-\u3247\u3250-\u32FE\u3300-\u4DBF\u4E00-\uA48C\uA490-\uA4C6\uA960-\uA97C\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFAFF\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFF01-\uFF60\uFFE0-\uFFE6]/g;
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var replaceFunc = function(c, a, b, tabIdx, idx4) {
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if (a) {
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return self.showInvisibles ?
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"<span class='ace_invisible'>" + lang.stringRepeat(self.SPACE_CHAR, c.length) + "</span>" :
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lang.stringRepeat("\xa0", c.length);
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} else if (c == "&") {
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return "&";
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} else if (c == "<") {
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return "<";
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} else if (c == "\t") {
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var tabSize = self.session.getScreenTabSize(screenColumn + tabIdx);
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screenColumn += tabSize - 1;
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return self.$tabStrings[tabSize];
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} else if (c == "\u3000") {
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// U+3000 is both invisible AND full-width, so must be handled uniquely
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var classToUse = self.showInvisibles ? "ace_cjk ace_invisible" : "ace_cjk";
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var space = self.showInvisibles ? self.SPACE_CHAR : "";
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screenColumn += 1;
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return "<span class='" + classToUse + "' style='width:" +
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(self.config.characterWidth * 2) +
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"px'>" + space + "</span>";
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} else if (b) {
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return "<span class='ace_invisible ace_invalid'>" + self.SPACE_CHAR + "</span>";
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} else {
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screenColumn += 1;
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return "<span class='ace_cjk' style='width:" +
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(self.config.characterWidth * 2) +
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"px'>" + c + "</span>";
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}
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};
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var output = value.replace(replaceReg, replaceFunc);
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if (!this.$textToken[token.type]) {
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var classes = "ace_" + token.type.replace(/\./g, " ace_");
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var style = "";
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if (token.type == "fold")
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style = " style='width:" + (token.value.length * this.config.characterWidth) + "px;' ";
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stringBuilder.push("<span class='", classes, "'", style, ">", output, "</span>");
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}
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else {
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stringBuilder.push(output);
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}
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return screenColumn + value.length;
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};
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this.renderIndentGuide = function(stringBuilder, value, max) {
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var cols = value.search(this.$indentGuideRe);
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if (cols <= 0 || cols >= max)
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return value;
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if (value[0] == " ") {
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cols -= cols % this.tabSize;
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stringBuilder.push(lang.stringRepeat(this.$tabStrings[" "], cols/this.tabSize));
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return value.substr(cols);
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} else if (value[0] == "\t") {
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stringBuilder.push(lang.stringRepeat(this.$tabStrings["\t"], cols));
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return value.substr(cols);
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}
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return value;
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};
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this.$renderWrappedLine = function(stringBuilder, tokens, splits, onlyContents) {
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var chars = 0;
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var split = 0;
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var splitChars = splits[0];
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var screenColumn = 0;
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for (var i = 0; i < tokens.length; i++) {
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var token = tokens[i];
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var value = token.value;
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if (i == 0 && this.displayIndentGuides) {
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chars = value.length;
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value = this.renderIndentGuide(stringBuilder, value, splitChars);
|
|
if (!value)
|
|
continue;
|
|
chars -= value.length;
|
|
}
|
|
|
|
if (chars + value.length < splitChars) {
|
|
screenColumn = this.$renderToken(stringBuilder, screenColumn, token, value);
|
|
chars += value.length;
|
|
} else {
|
|
while (chars + value.length >= splitChars) {
|
|
screenColumn = this.$renderToken(
|
|
stringBuilder, screenColumn,
|
|
token, value.substring(0, splitChars - chars)
|
|
);
|
|
value = value.substring(splitChars - chars);
|
|
chars = splitChars;
|
|
|
|
if (!onlyContents) {
|
|
stringBuilder.push("</div>",
|
|
"<div class='ace_line' style='height:",
|
|
this.config.lineHeight, "px'>"
|
|
);
|
|
}
|
|
|
|
split ++;
|
|
screenColumn = 0;
|
|
splitChars = splits[split] || Number.MAX_VALUE;
|
|
}
|
|
if (value.length != 0) {
|
|
chars += value.length;
|
|
screenColumn = this.$renderToken(
|
|
stringBuilder, screenColumn, token, value
|
|
);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
this.$renderSimpleLine = function(stringBuilder, tokens) {
|
|
var screenColumn = 0;
|
|
var token = tokens[0];
|
|
var value = token.value;
|
|
if (this.displayIndentGuides)
|
|
value = this.renderIndentGuide(stringBuilder, value);
|
|
if (value)
|
|
screenColumn = this.$renderToken(stringBuilder, screenColumn, token, value);
|
|
for (var i = 1; i < tokens.length; i++) {
|
|
token = tokens[i];
|
|
value = token.value;
|
|
screenColumn = this.$renderToken(stringBuilder, screenColumn, token, value);
|
|
}
|
|
};
|
|
|
|
// row is either first row of foldline or not in fold
|
|
this.$renderLine = function(stringBuilder, row, onlyContents, foldLine) {
|
|
if (!foldLine && foldLine != false)
|
|
foldLine = this.session.getFoldLine(row);
|
|
|
|
if (foldLine)
|
|
var tokens = this.$getFoldLineTokens(row, foldLine);
|
|
else
|
|
var tokens = this.session.getTokens(row);
|
|
|
|
|
|
if (!onlyContents) {
|
|
stringBuilder.push(
|
|
"<div class='ace_line' style='height:",
|
|
this.config.lineHeight * (
|
|
this.$useLineGroups() ? 1 :this.session.getRowLength(row)
|
|
), "px'>"
|
|
);
|
|
}
|
|
|
|
if (tokens.length) {
|
|
var splits = this.session.getRowSplitData(row);
|
|
if (splits && splits.length)
|
|
this.$renderWrappedLine(stringBuilder, tokens, splits, onlyContents);
|
|
else
|
|
this.$renderSimpleLine(stringBuilder, tokens);
|
|
}
|
|
|
|
if (this.showInvisibles) {
|
|
if (foldLine)
|
|
row = foldLine.end.row
|
|
|
|
stringBuilder.push(
|
|
"<span class='ace_invisible'>",
|
|
row == this.session.getLength() - 1 ? this.EOF_CHAR : this.EOL_CHAR,
|
|
"</span>"
|
|
);
|
|
}
|
|
if (!onlyContents)
|
|
stringBuilder.push("</div>");
|
|
};
|
|
|
|
this.$getFoldLineTokens = function(row, foldLine) {
|
|
var session = this.session;
|
|
var renderTokens = [];
|
|
|
|
function addTokens(tokens, from, to) {
|
|
var idx = 0, col = 0;
|
|
while ((col + tokens[idx].value.length) < from) {
|
|
col += tokens[idx].value.length;
|
|
idx++;
|
|
|
|
if (idx == tokens.length)
|
|
return;
|
|
}
|
|
if (col != from) {
|
|
var value = tokens[idx].value.substring(from - col);
|
|
// Check if the token value is longer then the from...to spacing.
|
|
if (value.length > (to - from))
|
|
value = value.substring(0, to - from);
|
|
|
|
renderTokens.push({
|
|
type: tokens[idx].type,
|
|
value: value
|
|
});
|
|
|
|
col = from + value.length;
|
|
idx += 1;
|
|
}
|
|
|
|
while (col < to && idx < tokens.length) {
|
|
var value = tokens[idx].value;
|
|
if (value.length + col > to) {
|
|
renderTokens.push({
|
|
type: tokens[idx].type,
|
|
value: value.substring(0, to - col)
|
|
});
|
|
} else
|
|
renderTokens.push(tokens[idx]);
|
|
col += value.length;
|
|
idx += 1;
|
|
}
|
|
}
|
|
|
|
var tokens = session.getTokens(row);
|
|
foldLine.walk(function(placeholder, row, column, lastColumn, isNewRow) {
|
|
if (placeholder != null) {
|
|
renderTokens.push({
|
|
type: "fold",
|
|
value: placeholder
|
|
});
|
|
} else {
|
|
if (isNewRow)
|
|
tokens = session.getTokens(row);
|
|
|
|
if (tokens.length)
|
|
addTokens(tokens, lastColumn, column);
|
|
}
|
|
}, foldLine.end.row, this.session.getLine(foldLine.end.row).length);
|
|
|
|
return renderTokens;
|
|
};
|
|
|
|
this.$useLineGroups = function() {
|
|
// For the updateLines function to work correctly, it's important that the
|
|
// child nodes of this.element correspond on a 1-to-1 basis to rows in the
|
|
// document (as distinct from lines on the screen). For sessions that are
|
|
// wrapped, this means we need to add a layer to the node hierarchy (tagged
|
|
// with the class name ace_line_group).
|
|
return this.session.getUseWrapMode();
|
|
};
|
|
|
|
this.destroy = function() {
|
|
clearInterval(this.$pollSizeChangesTimer);
|
|
if (this.$measureNode)
|
|
this.$measureNode.parentNode.removeChild(this.$measureNode);
|
|
delete this.$measureNode;
|
|
};
|
|
|
|
}).call(Text.prototype);
|
|
|
|
exports.Text = Text;
|
|
|
|
});
|