<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <!-- Example File From "JavaScript and DHTML Cookbook" Published by O'Reilly & Associates Copyright 2003 Danny Goodman --> <html> <head> <title>Main Application Page</title> <style rel="stylesheet" id="mainStyle" type="text/css"> html {background-color:#cccccc} body {background-color:#eeeeee; font-family:Tahoma,Arial,Helvetica,sans-serif; font-size:12px; margin-left:15%; margin-right:15%; border:3px groove darkred; padding:15px} h1 {text-align:right; font-size:1.5em; font-weight:bold} h2 {text-align:left; font-size:1.1em; font-weight:bold; text-decoration:underline} .buttons {margin-top:10px} </style>
<script type="text/javascript"> /* *********************************************************** Example 4-3 (DHTMLAPI.js) "Dynamic HTML:The Definitive Reference" 2nd Edition by Danny Goodman Published by O'Reilly & Associates ISBN 1-56592-494-0 http://www.oreilly.com Copyright 2002 Danny Goodman. All Rights Reserved. ************************************************************ */ // DHTMLapi.js custom API for cross-platform // object positioning by Danny Goodman (http://www.dannyg.com). // Release 2.0. Supports NN4, IE, and W3C DOMs.
// Global variables var isCSS, isW3C, isIE4, isNN4, isIE6CSS; // Initialize upon load to let all browsers establish content objects function initDHTMLAPI() { if (document.images) { isCSS = (document.body && document.body.style) ? true : false; isW3C = (isCSS && document.getElementById) ? true : false; isIE4 = (isCSS && document.all) ? true : false; isNN4 = (document.layers) ? true : false; isIE6CSS = (document.compatMode && document.compatMode.indexOf("CSS1") >= 0) ? true : false; } } // Set event handler to initialize API window.onload = initDHTMLAPI;
// Seek nested NN4 layer from string name function seekLayer(doc, name) { var theObj; for (var i = 0; i < doc.layers.length; i++) { if (doc.layers[i].name == name) { theObj = doc.layers[i]; break; } // dive into nested layers if necessary if (doc.layers[i].document.layers.length > 0) { theObj = seekLayer(document.layers[i].document, name); } } return theObj; }
// Convert object name string or object reference // into a valid element object reference function getRawObject(obj) { var theObj; if (typeof obj == "string") { if (isW3C) { theObj = document.getElementById(obj); } else if (isIE4) { theObj = document.all(obj); } else if (isNN4) { theObj = seekLayer(document, obj); } } else { // pass through object reference theObj = obj; } return theObj; }
// Convert object name string or object reference // into a valid style (or NN4 layer) reference function getObject(obj) { var theObj = getRawObject(obj); if (theObj && isCSS) { theObj = theObj.style; } return theObj; }
// Position an object at a specific pixel coordinate function shiftTo(obj, x, y) { var theObj = getObject(obj); if (theObj) { if (isCSS) { // equalize incorrect numeric value type var units = (typeof theObj.left == "string") ? "px" : 0 theObj.left = x + units; theObj.top = y + units; } else if (isNN4) { theObj.moveTo(x,y) } } }
// Move an object by x and/or y pixels function shiftBy(obj, deltaX, deltaY) { var theObj = getObject(obj); if (theObj) { if (isCSS) { // equalize incorrect numeric value type var units = (typeof theObj.left == "string") ? "px" : 0 theObj.left = getObjectLeft(obj) + deltaX + units; theObj.top = getObjectTop(obj) + deltaY + units; } else if (isNN4) { theObj.moveBy(deltaX, deltaY); } } }
// Set the z-order of an object function setZIndex(obj, zOrder) { var theObj = getObject(obj); if (theObj) { theObj.zIndex = zOrder; } }
// Set the background color of an object function setBGColor(obj, color) { var theObj = getObject(obj); if (theObj) { if (isNN4) { theObj.bgColor = color; } else if (isCSS) { theObj.backgroundColor = color; } } }
// Set the visibility of an object to visible function show(obj) { var theObj = getObject(obj); if (theObj) { theObj.visibility = "visible"; } }
// Set the visibility of an object to hidden function hide(obj) { var theObj = getObject(obj); if (theObj) { theObj.visibility = "hidden"; } }
// Retrieve the x coordinate of a positionable object function getObjectLeft(obj) { var elem = getRawObject(obj); var result = 0; if (document.defaultView) { var style = document.defaultView; var cssDecl = style.getComputedStyle(elem, ""); result = cssDecl.getPropertyValue("left"); } else if (elem.currentStyle) { result = elem.currentStyle.left; } else if (elem.style) { result = elem.style.left; } else if (isNN4) { result = elem.left; } return parseInt(result); }
// Retrieve the y coordinate of a positionable object function getObjectTop(obj) { var elem = getRawObject(obj); var result = 0; if (document.defaultView) { var style = document.defaultView; var cssDecl = style.getComputedStyle(elem, ""); result = cssDecl.getPropertyValue("top"); } else if (elem.currentStyle) { result = elem.currentStyle.top; } else if (elem.style) { result = elem.style.top; } else if (isNN4) { result = elem.top; } return parseInt(result); }
// Retrieve the rendered width of an element function getObjectWidth(obj) { var elem = getRawObject(obj); var result = 0; if (elem.offsetWidth) { result = elem.offsetWidth; } else if (elem.clip && elem.clip.width) { result = elem.clip.width; } else if (elem.style && elem.style.pixelWidth) { result = elem.style.pixelWidth; } return parseInt(result); }
// Retrieve the rendered height of an element function getObjectHeight(obj) { var elem = getRawObject(obj); var result = 0; if (elem.offsetHeight) { result = elem.offsetHeight; } else if (elem.clip && elem.clip.height) { result = elem.clip.height; } else if (elem.style && elem.style.pixelHeight) { result = elem.style.pixelHeight; } return parseInt(result); }
// Return the available content width space in browser window function getInsideWindowWidth() { if (window.innerWidth) { return window.innerWidth; } else if (isIE6CSS) { // measure the html element's clientWidth return document.body.parentElement.clientWidth } else if (document.body && document.body.clientWidth) { return document.body.clientWidth; } return 0; }
// Return the available content height space in browser window function getInsideWindowHeight() { if (window.innerHeight) { return window.innerHeight; } else if (isIE6CSS) { // measure the html element's clientHeight return document.body.parentElement.clientHeight } else if (document.body && document.body.clientHeight) { return document.body.clientHeight; } return 0; }
</script> <script type="text/javascript"> // Help choose from four UI pseudo-window flavors function getCurrOSUI() { var ua = navigator.userAgent; if (ua.indexOf("Mac") != -1) { if (ua.indexOf("OS X") != -1 || ua.indexOf("MSIE 5.2") != -1) { return "macosX"; } else { return "macos9"; } } else if (ua.indexOf("Windows XP") != -1 || ua.indexOf("NT 5.1") != -1) { return "winxp"; } else if ((document.compatMode && document.compatMode != "BackComp") || (navigator.product && navigator.product == "Gecko")) { // Win9x and CSS-compatible return "win9x"; } else { // default for Windows 9x in quirks mode, Unix/Linux, & unknowns return "win9xQ"; } } var currOS = getCurrOSUI(); // Load OS-specific style sheet for pseudo dialog layer document.write("<link rel='stylesheet' type='text/css' href='dialogLayer_" + currOS + ".css'>");
//****************************** // BEGIN LAYER DIALOG CODE //******************************/
// One object tracks the current pseudo-window layer. var dialogLayer = {layer:null, visible:false};
// Center a positionable element whose name is passed as // a parameter in the current window/frame, and show it function centerOnWindow(elemID) { // 'obj' is the positionable object var obj = getRawObject(elemID); // window scroll factors var scrollX = 0, scrollY = 0; if (document.body && typeof document.body.scrollTop != "undefined") { scrollX += document.body.scrollLeft; scrollY += document.body.scrollTop; if (document.body.parentNode && typeof document.body.parentNode.scrollTop != "undefined") { scrollX += document.body.parentNode.scrollLeft; scrollY += document.body.parentNode.scrollTop } } else if (typeof window.pageXOffset != "undefined") { scrollX += window.pageXOffset; scrollY += window.pageYOffset; } var x = Math.round((getInsideWindowWidth()/2) - (getObjectWidth(obj)/2)) + scrollX; var y = Math.round((getInsideWindowHeight()/2) - (getObjectHeight(obj)/2)) + scrollY; shiftTo(obj, x, y); }
function initLayerDialog() { document.getElementById("closebox").src = "closeBox_" + currOS + ".jpg"; dialogLayer.layer = document.getElementById("pseudoWindow"); }
// Set up and display pseudo-window. // Parameters: // url -- URL of the page/frameset to be loaded into iframe // returnFunc -- reference to the function (on this page) // that is to act on the data returned from the dialog // args -- [optional] any data you need to pass to the dialog function openLayerDialog(url, title, returnFunc, args) { if (!dialogLayer.visible) { // Initialize properties of the modal dialog object. dialogLayer.url = url; dialogLayer.title = title; dialogLayer.returnFunc = returnFunc; dialogLayer.args = args; dialogLayer.returnedValue = ""; // Load URL document.getElementById("contentFrame").src = url; // Set title of "window" document.getElementById("barTitle").firstChild.nodeValue = title; // Center "window" in browser window or frame dialogLayer.layer.style.visibility = "hidden"; dialogLayer.layer.style.display = "block" centerOnWindow("pseudoWindow"); // Show it and set visibility flag dialogLayer.layer.style.visibility = "visible" dialogLayer.visible = true; }
}
function closeLayerDialog() { dialogLayer.layer.style.display = "none" dialogLayer.visible = false; } //************************** // END LAYER DIALOG CODE //**************************/
</script> <script type="text/javascript"> // Global holds reference to selected element var selectedObj; // Globals hold location of click relative to element var offsetX, offsetY;
// Set global reference to element being engaged and dragged function setSelectedElem(evt) { var target = (evt.target) ? evt.target : evt.srcElement; var divID = (target.id == "titlebar") ? "pseudoWindow" : ""; if (divID) { if (document.layers) { selectedObj = document.layers[divID]; } else if (document.all) { selectedObj = document.all(divID); } else if (document.getElementById) { selectedObj = document.getElementById(divID); } setZIndex(selectedObj, 100); return; } selectedObj = null; return; } // Turn selected element on function engage(evt) { evt = (evt) ? evt : event; setSelectedElem(evt); if (selectedObj) { if (document.body && document.body.setCapture) { // engage event capture in IE/Win document.body.setCapture(); } if (evt.pageX) { offsetX = evt.pageX - ((typeof selectedObj.offsetLeft != "undefined") ? selectedObj.offsetLeft : selectedObj.left); offsetY = evt.pageY - ((selectedObj.offsetTop) ? selectedObj.offsetTop : selectedObj.top); } else if (typeof evt.clientX != "undefined") { offsetX = evt.clientX - ((selectedObj.offsetLeft) ? selectedObj.offsetLeft : 0); offsetY = evt.clientY - ((selectedObj.offsetTop) ? selectedObj.offsetTop : 0); } else if (evt.offsetX || evt/offsetY) { offsetX = evt.offsetX - ((evt.offsetX < -2) ? 0 : document.body.scrollLeft); offsetX -= (document.body.parentElement && document.body.parentElement.scrollLeft) ? document.body.parentElement.scrollLeft : 0 offsetY = evt.offsetY - ((evt.offsetY < -2) ? 0 : document.body.scrollTop); offsetY -= (document.body.parentElement && document.body.parentElement.scrollTop) ? document.body.parentElement.scrollTop : 0 } evt.cancelBubble = true; return false; } } // Drag an element function dragIt(evt) { evt = (evt) ? evt : event; if (selectedObj) { if (evt.pageX) { shiftTo(selectedObj, (evt.pageX - offsetX), (evt.pageY - offsetY)); } else if (evt.clientX || evt.clientY) { shiftTo(selectedObj, (evt.clientX - offsetX), (evt.clientY - offsetY)); } evt.cancelBubble = true; return false; } } // Turn selected element off function release(evt) { if (selectedObj) { setZIndex(selectedObj, 0); if (document.body && document.body.releaseCapture) { // stop event capture in IE/Win document.body.releaseCapture(); } selectedObj = null; } } function blockEvents(evt) { evt = (evt) ? evt : event; evt.cancelBubble = true; return false; }
// Assign event handlers used by both Navigator and IE function initDrag() { if (document.layers) { // turn on event capture for these events in NN4 event model document.captureEvents(Event.MOUSEDOWN | Event.MOUSEMOVE | Event.MOUSEUP); return; } else if (document.body & document.body.addEventListener) { // turn on event capture for these events in W3C DOM event model document.addEventListener("mousedown", engage, true); document.addEventListener("mousemove", dragIt, true); document.addEventListener("mouseup", release, true); return; } document.onmousedown = engage; document.onmousemove = dragIt; document.onmouseup = release; return; }
</script> <script type="text/javascript">
// Function to run upon closing the dialog with "OK". function setPrefs() { // We're just displaying the returned value in a text box. document.returned.searchURL.value = dialogLayer.returnedValue; }
// Called by "Apply Settings" button to reload the page with // search string data appended to URL. function applySettings() { if (document.returned.searchURL.value) { location.href += document.returned.searchURL.value; } }
//***************************************** // BEGIN CUSTOM PAGE STYLE CODE //******************************************/ // Convert location.search into an array of values // indexed by name. function getSearchAsArray() { var results = new Array() var input = unescape(location.search.substr(1)) if (input) { var srchArray = input.split("&") var tempArray = new Array() for (i = 0; i < srchArray.length; i++) { tempArray = srchArray[i].split("=") results[tempArray[0]] = tempArray[1] } } return results } var srchData = getSearchAsArray()
// Write style sheets with data passed in with location.search, // or use default values if no data has been passed. document.write("<style type='text/css'>") document.write("body {font-family:'Comic Sans MS',Helvetica,sans-serif; background-color:" + ((srchData["bgColor"]) ? srchData["bgColor"] : "#eeeeee") + "; color:" + ((srchData["textColor"]) ? srchData["textColor"] : "#000000") + "}") document.write("h1 {text-align:right; font-size:" + ((srchData["h1Size"]) ? srchData["h1Size"] : "24") + "pt}") document.write("</style>") //***************************************** // END CUSTOM PAGE STYLE CODE //******************************************/
</script>
</head> <body onload="initDHTMLAPI(); initDrag(); initLayerDialog()"> <h1>Giantco, Inc.</h1> <a href="#" onmouseover="status='Set preferences...';return true" onmouseout="status='';return true" onclick="openLayerDialog('dialog_main.html', 'User Preferences', setPrefs, null);return false"> Preferences </a> (click here to open layer-based "dialog" window) <hr /> <h2>Welcome, <script language="JavaScript" type="text/javascript"> document.write(" " + ((srchData.name) ? srchData.name : "friend")) </script> !</h2> <form name="returned"> Value returned from dialog window: <input type="text" name="searchURL" size="60" /><br /> <input type="button" name="apply" value="Apply Settings" onclick="applySettings()">
<div id="pseudoWindow">
<div id="titlebar" class="draggable"><img id="closebox" src="closeBox_win9x.jpg" onclick="closeLayerDialog()" /> <span id="barTitle">Titlebar</span></div>
<iframe id="contentFrame" src="" frameborder="0" vspace="0" hspace="0" marginwidth="14" marginHeight="14" width="100%" height="480" scrolling="auto"> </iframe>
</div>
</body> </html>
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