b503e65e03
This makes it possible to break out helper functions without exposing them to the rest of the document class. Also, long term, we may want to have a stand-alone test suite for applyDelta, so it makes sense in its own file. All other changes involve syntax corrections (some syntax issues were mine, others pre-existed) to make the documentation compilation work.
270 lines
8.5 KiB
JavaScript
270 lines
8.5 KiB
JavaScript
/* ***** 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 event = require("./lib/event");
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var EventEmitter = require("./lib/event_emitter").EventEmitter;
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/**
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* An abstract class representing a native scrollbar control.
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* @class ScrollBar
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**/
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/**
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* Creates a new `ScrollBar`. `parent` is the owner of the scroll bar.
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* @param {DOMElement} parent A DOM element
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*
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* @constructor
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**/
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var ScrollBar = function(parent) {
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this.element = dom.createElement("div");
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this.element.className = "ace_scrollbar ace_scrollbar" + this.classSuffix;
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this.inner = dom.createElement("div");
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this.inner.className = "ace_scrollbar-inner";
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this.element.appendChild(this.inner);
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parent.appendChild(this.element);
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this.setVisible(false);
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this.skipEvent = false;
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event.addListener(this.element, "scroll", this.onScroll.bind(this));
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event.addListener(this.element, "mousedown", event.preventDefault);
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};
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(function() {
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oop.implement(this, EventEmitter);
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this.setVisible = function(isVisible) {
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this.element.style.display = isVisible ? "" : "none";
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this.isVisible = isVisible;
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};
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}).call(ScrollBar.prototype);
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/**
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* Represents a vertical scroll bar.
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* @class VScrollBar
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**/
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/**
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* Creates a new `VScrollBar`. `parent` is the owner of the scroll bar.
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* @param {DOMElement} parent A DOM element
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* @param {Object} renderer An editor renderer
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*
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* @constructor
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**/
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var VScrollBar = function(parent, renderer) {
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ScrollBar.call(this, parent);
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this.scrollTop = 0;
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// in OSX lion the scrollbars appear to have no width. In this case resize the
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// element to show the scrollbar but still pretend that the scrollbar has a width
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// of 0px
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// in Firefox 6+ scrollbar is hidden if element has the same width as scrollbar
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// make element a little bit wider to retain scrollbar when page is zoomed
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renderer.$scrollbarWidth =
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this.width = dom.scrollbarWidth(parent.ownerDocument);
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this.inner.style.width =
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this.element.style.width = (this.width || 15) + 5 + "px";
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};
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oop.inherits(VScrollBar, ScrollBar);
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(function() {
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this.classSuffix = '-v';
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/**
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* Emitted when the scroll bar, well, scrolls.
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* @event scroll
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* @param {Object} e Contains one property, `"data"`, which indicates the current scroll top position
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**/
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this.onScroll = function() {
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if (!this.skipEvent) {
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this.scrollTop = this.element.scrollTop;
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this._emit("scroll", {data: this.scrollTop});
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}
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this.skipEvent = false;
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};
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/**
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* Returns the width of the scroll bar.
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* @returns {Number}
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**/
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this.getWidth = function() {
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return this.isVisible ? this.width : 0;
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};
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/**
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* Sets the height of the scroll bar, in pixels.
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* @param {Number} height The new height
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**/
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this.setHeight = function(height) {
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this.element.style.height = height + "px";
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};
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/**
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* Sets the inner height of the scroll bar, in pixels.
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* @param {Number} height The new inner height
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* @deprecated Use setScrollHeight instead
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**/
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this.setInnerHeight = function(height) {
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this.inner.style.height = height + "px";
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};
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/**
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* Sets the scroll height of the scroll bar, in pixels.
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* @param {Number} height The new scroll height
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**/
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this.setScrollHeight = function(height) {
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this.inner.style.height = height + "px";
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};
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/**
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* Sets the scroll top of the scroll bar.
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* @param {Number} scrollTop The new scroll top
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**/
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this.setScrollTop = function(scrollTop) {
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// on chrome 17+ for small zoom levels after calling this function
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// this.element.scrollTop != scrollTop which makes page to scroll up.
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if (this.scrollTop != scrollTop) {
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this.skipEvent = true;
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this.scrollTop = this.element.scrollTop = scrollTop;
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}
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};
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}).call(VScrollBar.prototype);
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/**
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* Represents a horisontal scroll bar.
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* @class HScrollBar
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**/
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/**
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* Creates a new `HScrollBar`. `parent` is the owner of the scroll bar.
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* @param {DOMElement} parent A DOM element
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* @param {Object} renderer An editor renderer
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*
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* @constructor
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**/
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var HScrollBar = function(parent, renderer) {
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ScrollBar.call(this, parent);
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this.scrollLeft = 0;
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// in OSX lion the scrollbars appear to have no width. In this case resize the
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// element to show the scrollbar but still pretend that the scrollbar has a width
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// of 0px
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// in Firefox 6+ scrollbar is hidden if element has the same width as scrollbar
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// make element a little bit wider to retain scrollbar when page is zoomed
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this.height = renderer.$scrollbarWidth;
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this.inner.style.height =
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this.element.style.height = (this.height || 15) + 5 + "px";
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};
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oop.inherits(HScrollBar, ScrollBar);
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(function() {
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this.classSuffix = '-h';
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/**
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* Emitted when the scroll bar, well, scrolls.
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* @event scroll
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* @param {Object} e Contains one property, `"data"`, which indicates the current scroll left position
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**/
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this.onScroll = function() {
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if (!this.skipEvent) {
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this.scrollLeft = this.element.scrollLeft;
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this._emit("scroll", {data: this.scrollLeft});
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}
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this.skipEvent = false;
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};
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/**
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* Returns the height of the scroll bar.
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* @returns {Number}
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**/
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this.getHeight = function() {
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return this.isVisible ? this.height : 0;
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};
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/**
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* Sets the width of the scroll bar, in pixels.
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* @param {Number} width The new width
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**/
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this.setWidth = function(width) {
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this.element.style.width = width + "px";
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};
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/**
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* Sets the inner width of the scroll bar, in pixels.
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* @param {Number} width The new inner width
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* @deprecated Use setScrollWidth instead
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**/
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this.setInnerWidth = function(width) {
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this.inner.style.width = width + "px";
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};
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/**
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* Sets the scroll width of the scroll bar, in pixels.
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* @param {Number} width The new scroll width
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**/
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this.setScrollWidth = function(width) {
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this.inner.style.width = width + "px";
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};
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/**
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* Sets the scroll left of the scroll bar.
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* @param {Number} scrollTop The new scroll left
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**/
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this.setScrollLeft = function(scrollLeft) {
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// on chrome 17+ for small zoom levels after calling this function
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// this.element.scrollTop != scrollTop which makes page to scroll up.
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if (this.scrollLeft != scrollLeft) {
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this.skipEvent = true;
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this.scrollLeft = this.element.scrollLeft = scrollLeft;
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}
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};
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}).call(HScrollBar.prototype);
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exports.ScrollBar = VScrollBar; // backward compatibility
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exports.ScrollBarV = VScrollBar; // backward compatibility
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exports.ScrollBarH = HScrollBar; // backward compatibility
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exports.VScrollBar = VScrollBar;
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exports.HScrollBar = HScrollBar;
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});
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