+++ /dev/null
-/*
- * extensions/double-click.js
- *
- * Part of the jsMath package for mathematics on the web.
- *
- * This file allows users to double click on typeset mathematics
- * to view the TeX source for the given expression. It will be loaded
- * automatically when needed, or can be loaded by
- *
- * jsMath.Extension.Require('double-click');
- *
- * ---------------------------------------------------------------------
- *
- * Copyright 2005-2008 by Davide P. Cervone
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/********************************************************************/
-
-if (jsMath.Click && jsMath.Click.styles)
- {jsMath.Click.oldStyles = jsMath.Click.styles}
-
-jsMath.Add(jsMath.Click,{
-
- dragging: 0,
-
- styles: {
- // Floating windows for displaying TeX source
- '#jsMath_float': {
- position: 'absolute', top: '0px', left: '0px', 'z-index': '101',
- 'max-width': '80%', width: 'auto', height: 'auto',
- padding: '0px', margin: '0px', 'font-size': '100%'
- },
- '#jsMath_float .drag': {
- 'background-color': '#DDDDDD',
- border: 'outset 1px', padding: '0px', margin: '0px',
- width: 'auto', height: '12px', 'font-size': '1px'
- },
- '#jsMath_float .close': {
- 'background-color': '#E6E6E6',
- border: 'inset 1px', margin: '1px 2px', padding: '0px',
- width: '8px', height: '8px'
- },
- '#jsMath_float .source': {
- 'background-color': '#E2E2E2',
- border: 'outset 1px', margin: '0px', padding: '8px 15px',
- width: 'auto', height: 'auto',
- 'font-family': 'courier, fixed', 'font-size': '90%'
- }
- },
-
- /*
- * Create the hidden DIV used for the tex source window
- */
- Init: function () {
- if (this.oldStyles) {jsMath.Insert(this.styles,this.oldStyles)}
- jsMath.Setup.Styles(this.styles);
- this.source = jsMath.Setup.DIV("float",{display:'none'});
- this.source.innerHTML =
- '<div class="drag"><div class="close"></div></div>'
- + '<div class="source"><span></span></div>';
- this.drag = this.source.firstChild;
- this.tex = this.drag.nextSibling.firstChild;
- this.drag.firstChild.onclick = jsMath.Click.CloseSource;
- this.drag.onmousedown = jsMath.Click.StartDragging;
- this.drag.ondragstart = jsMath.Click.False;
- this.drag.onselectstart = jsMath.Click.False;
- this.source.onclick = jsMath.Click.CheckClose;
- },
- False: function () {return false},
-
- /*
- * Handle a double-click on an equation
- */
- DblClick: function (data) {
- var event = data[0]; var TeX = data[1];
- var event = jsMath.Click.Event(event);
-
- var source = jsMath.Click.source
- var tex = jsMath.Click.tex;
-
- source.style.visibility = 'hidden';
- source.style.display = ''; source.style.width = '';
- source.style.left = ''; source.style.top = '';
- tex.innerHTML = '';
-
- TeX = TeX.replace(/^\s+|\s+$/g,'');
- TeX = TeX.replace(/&/g,'&');
- TeX = TeX.replace(/</g,'<');
- TeX = TeX.replace(/>/g,'>');
- TeX = TeX.replace(/\n/g,'<br/>');
- tex.innerHTML = TeX;
-
- var h = source.offsetHeight; var w;
- if (jsMath.Browser.msieDivWidthBug) {
- tex.className = 'source'; // Work around MSIE bug where
- w = tex.offsetWidth + 5; // DIV's don't collapse to
- tex.className = ''; // their natural widths
- } else {
- w = source.offsetWidth;
- }
- w = Math.max(50,Math.min(w,.8*event.W,event.W-40));
- var x = Math.floor(event.x-w/2); var y = Math.floor(event.y-h/2);
- x = event.X + Math.max(Math.min(x,event.W-w-20),20);
- y = event.Y + Math.max(Math.min(y,event.H-h-5),5);
-
- source.style.left = x+'px'; source.style.top = y+'px';
- source.style.width = w+'px';
- source.style.visibility = '';
- jsMath.Click.left = x + event.X; jsMath.Click.top = y + event.Y;
- jsMath.Click.w = w; jsMath.Click.h = source.offsetHeight;
-
- jsMath.Click.DeselectText(x,y);
- return false;
- },
-
- /*
- * Get window width, height, and offsets plus
- * position of pointer relative to the window
- */
- Event: function (event) {
- var W = jsMath.window.innerWidth || jsMath.document.body.clientWidth;
- var H = jsMath.window.innerHeight || jsMath.document.body.clientHeight;
- var X = jsMath.window.pageXOffset; var Y = jsMath.window.pageYOffset;
- if (X == null) {
- X = jsMath.document.body.clientLeft;
- Y = jsMath.document.body.clientTop;
- }
- var x = event.pageX; var y = event.pageY;
- if (x == null) {
- x = event.clientX; y = event.clientY;
- if (jsMath.browser == 'MSIE' && jsMath.document.compatMode == 'CSS1Compat') {
- X = jsMath.document.documentElement.scrollLeft;
- Y = jsMath.document.documentElement.scrollTop;
- W = jsMath.document.documentElement.clientWidth;
- H = jsMath.document.documentElement.clientHeight;
- } else {
- X = jsMath.document.body.scrollLeft;
- Y = jsMath.document.body.scrollTop;
- }
- } else {x -= X; y -= Y}
-
- return {x: x, y: y, W: W, H: H, X: X, Y: Y};
- },
-
- /*
- * Unselect whatever text is selected (since double-clicking
- * usually selects something)
- */
- DeselectText: function (x,y) {
- if (jsMath.window.getSelection && jsMath.window.getSelection().removeAllRanges)
- {jsMath.window.getSelection().removeAllRanges()}
- else if (jsMath.document.getSelection && jsMath.document.getSelection().removeAllRanges)
- {jsMath.document.getSelection().removeAllRanges()}
- else if (jsMath.document.selection && jsMath.document.selection.empty)
- {jsMath.document.selection.empty()}
- else {
- /* Hack to deselect the text in Opera and Safari */
- if (jsMath.browser == 'MSIE') return; // don't try it if MISE on Mac
- jsMath.hiddenTop.innerHTML =
- '<textarea style="visibility:hidden" rows="1" cols="1">a</textarea>';
- jsMath.hiddenTop.firstChild.style.position = 'absolute';
- jsMath.hiddenTop.firstChild.style.left = x+'px';
- jsMath.hiddenTop.firstChild.style.top = y+'px';
- setTimeout(jsMath.Click.SelectHidden,1);
- }
- },
- SelectHidden: function () {
- jsMath.hiddenTop.firstChild.focus();
- jsMath.hiddenTop.firstChild.select();
- jsMath.hiddenTop.innerHTML = '';
- },
-
- /*
- * Close the TeX source window
- */
- CloseSource: function () {
- jsMath.Click.tex.innerHTML = '';
- jsMath.Click.source.style.display = 'none';
- jsMath.Click.source.style.visibility = 'hidden';
- jsMath.Click.StopDragging();
- return false;
- },
- CheckClose: function (event) {
- if (!event) {event = jsMath.window.event}
- if (event.altKey) {jsMath.Click.CloseSource(); return false}
- },
-
- /*
- * Set up for dragging the source panel
- */
- StartDragging: function (event) {
- if (!event) {event = jsMath.window.event}
- if (jsMath.Click.dragging) {jsMath.Click.StopDragging(event)}
- var event = jsMath.Click.Event(event);
- jsMath.Click.dragging = 1;
- jsMath.Click.x = event.x + 2*event.X - jsMath.Click.left;
- jsMath.Click.y = event.y + 2*event.Y - jsMath.Click.top;
- jsMath.Click.oldonmousemove = jsMath.document.onmousemove;
- jsMath.Click.oldonmouseup = jsMath.document.onmouseup;
- jsMath.document.onmousemove = jsMath.Click.DragSource;
- jsMath.document.onmouseup = jsMath.Click.StopDragging;
- return false;
- },
-
- /*
- * Stop dragging the source window
- */
- StopDragging: function (event) {
- if (jsMath.Click.dragging) {
- jsMath.document.onmousemove = jsMath.Click.oldonmousemove;
- jsMath.document.onmouseup = jsMath.Click.oldonmouseup;
- jsMath.Click.oldonmousemove = null;
- jsMath.Click.oldonmouseup = null;
- jsMath.Click.dragging = 0;
- }
- return false;
- },
-
- /*
- * Move the source window (but stay within the browser window)
- */
- DragSource: function (event) {
- if (!event) {event = jsMath.window.event}
- if (jsMath.Browser.buttonCheck && !event.button) {return jsMath.Click.StopDragging(event)}
- event = jsMath.Click.Event(event);
- var x = event.x + event.X - jsMath.Click.x;
- var y = event.y + event.Y - jsMath.Click.y;
- x = Math.max(event.X,Math.min(event.W+event.X-jsMath.Click.w,x));
- y = Math.max(event.Y,Math.min(event.H+event.Y-jsMath.Click.h,y));
- jsMath.Click.source.style.left = x + 'px';
- jsMath.Click.source.style.top = y + 'px';
- jsMath.Click.left = x + event.X; jsMath.Click.top = y + event.Y;
- return false;
- }
-
-});
-
-jsMath.Click.Init();