hosting/server/htdocs/graph/index.html

<!DOCTYPE html>  <div id="bodydiv" class="body"> <div id="viewcontent" class="viewcontent" style="width: 100%;"> <div id="graphdiv" class="graphcontent" style="top: 0px; left: -2500px; width: 5000px; height: 5000px;"></div> <div id="playdiv" style="position: absolute; top: 0x; left: 0px; width: 2500px; height: 5000px; display: none"></div> </div> <script type="text/javascript"> (function graphbody() { /** * Get the current app name. */ var appname = ui.fragmentParams(location)['app']; var ispalette = false; if (isNull(appname)) { appname = ui.fragmentParams(location)['palette']; // Edit a palette instead of a regular app if (!isNull(appname)) ispalette = true; } /** * Set page title. */ document.title = config.windowtitle() + ' - ' + config.logic() + ' - ' + appname; /** * Set header div. */ $('viewhead').innerHTML = '<span id="appTitle" class="cmenu">' + appname + '</span>' + '<input type="button" id="deleteCompButton" title="Delete a component" class="redbutton plusminus" style="position: absolute; top: 4px; left: 5px;" disabled="true" value="-"/>' + '<span style="position: absolute; top: 0px; left: 45px; right: 115px; padding: 0px; background: transparent;"><input id="compValue" type="text" value="" class="flatentry" title="Component value" autocapitalize="off" placeholder="Value" style="position: absolute; left: 0px; top: 4px; width: 100%; display: none;" readonly="readonly"/></span>' + '<input type="button" id="playCompButton" title="View component value" class="graybutton plusminus" style="position: absolute; top: 4px; right: 75px;" disabled="true" value=">"/>' + '<input type="button" id="copyCompButton" title="Copy a component" class="bluebutton" style="position: absolute; top: 4px; right: 40px;" disabled="true" value="C"/>' + '<input type="button" id="addCompButton" title="Add a component" class="bluebutton plusminus" style="position: absolute; top: 4px; right: 5px;" disabled="true" value="+"/>'; if (!ui.isMobile()) $('viewcontent').className = 'viewcontent flatscrollbars'; /** * Track the current app composite, author, and saved XML content. */ var author = ''; var editable = false; var composite; var savedcomposxml = ''; /** * Component value field, add, delete and play buttons. */ var cvalue = $('compValue'); var atitle = $('appTitle'); var cadd = $('addCompButton'); var cdelete = $('deleteCompButton'); var ccopy = $('copyCompButton'); var cplay = $('playCompButton'); /** * Init componnent references. */ var editorComp = sca.component("Editor"); var palettes = sca.reference(editorComp, "palettes"); var composites = sca.reference(editorComp, ispalette? "palettes" : "composites"); /** * Composite rendering functions. */ var graph = {}; /** * Basic colors */ graph.colors = {}; graph.colors.black = '#000000'; graph.colors.blue = '#0000ff'; graph.colors.cyan = '#00ffff'; graph.colors.gray = '#808080' graph.colors.lightgray = '#dcdcdc' graph.colors.green = '#00ff00'; graph.colors.magenta = '#ff00ff'; graph.colors.orange = '#ffa500'; graph.colors.pink = '#ffc0cb'; graph.colors.purple = '#800080'; graph.colors.red = '#ff0000'; graph.colors.white = '#ffffff'; graph.colors.yellow = '#ffff00'; graph.colors.link = '#357ae8'; graph.colors.orange1 = '#ffd666'; graph.colors.green1 = '#bbe082'; graph.colors.blue1 = '#66dbdf'; graph.colors.yellow1 = '#fdf57a'; graph.colors.cyan1 = '#e6eafb'; graph.colors.lightgray1 = '#eaeaea' graph.colors.pink1 = '#ffd9e0'; graph.colors.red1 = '#d03f41'; graph.colors.white1 = '#ffffff'; graph.colors.orange2 = '#ffbb00'; graph.colors.green2 = '#96d333'; //graph.colors.blue2 = '#0d7cc1'; graph.colors.blue2 = '#00c3c9'; graph.colors.red2 = '#d03f41'; graph.colors.yellow2 = '#fcee21'; graph.colors.magenta2 = '#c0688a'; graph.colors.cyan2 = '#d5dcf9'; graph.colors.lightgray2 = '#dcdcdc' graph.colors.pink2 = '#ffc0cb'; graph.colors.white2 = '#ffffff'; graph.colors.orange3 = '#ffc700'; graph.colors.green3 = '#92e120'; graph.colors.blue3 = '#008fd1'; graph.colors.yellow3 = '#fdf400'; graph.colors.cyan3 = '#b4d3fd'; graph.colors.lightgray3 = '#e3e3e3' graph.colors.pink3 = '#da749b'; graph.colors.red3 = '#ed3f48'; graph.colors.white3 = '#ffffff'; /** * Default positions and sizes. */ graph.palcx = 2500; graph.proxcx = 20; graph.proxcy = 20; graph.buttoncx = 55; graph.buttoncy = 23; graph.curvsz = 4; graph.tabsz = 2; graph.titlex = 4; graph.titley = 0; /** * Make a composite graph editor. */ graph.mkedit = function(graphdiv, pos, atitle, cvalue, cadd, ccopy, cdelete, onchange, onselect) { // Track element dragging and selection graph.dragging = null; graph.dragged = false; graph.selected = null; cvalue.readOnly = true; cvalue.style.display = 'none'; atitle.style.display = 'block'; ccopy.disabled = true; cdelete.disabled = true; cadd.disabled = !editable; // Register event listeners graph.oncomposchange = onchange; graph.oncompselect = onselect; /** * Find the first draggable element in a hierarchy of elements. */ function draggable(n) { //debug('draggable', n); if (n == graphdiv || n == null) return null; if (n.className == 'g' && !isNull(n.id) && n.id != '') return n; return draggable(n.parentNode); } /** * Render component move animation. */ function onmoveanimation() { //debug('onmoveanimation'); // Stop animation if we're not dragging an element anymore if (graph.dragging == null) return true; // Request the next animation frame ui.animation(onmoveanimation); // Nothing to do if the selected component has not moved if (graph.moveX == graph.dragX && graph.moveY == graph.dragY) return true; // Remember that the selected component has been dragged graph.dragged = true; // Cut wire to the dragged component if (graph.dragging.parentNode != graphdiv) { var compos = scdl.composite(graphdiv.compos); setElement(compos, graph.sortcompos(graph.cutwire(graph.dragging, compos, graphdiv))); // Bring component to the top graph.bringtotop(graph.dragging, graphdiv); } // Calculate new position of the dragged component var gpos = graph.relpos(graph.dragging); var newX = gpos.x + (graph.moveX - graph.dragX); var newY = gpos.y + (graph.moveY - graph.dragY); if (newX >= graph.palcx) graph.dragX = graph.moveX else newX = graph.palcx; if (newY >= 0) graph.dragY = graph.moveY; else newY = 0; // Move it graph.move(graph.dragging, graph.mkpath().pos(newX, newY)); return false; }; /** * Handle a mouse down or touch start event. */ function onmousedown(e) { // Remember mouse or touch position var pos = typeof e.touches != "undefined" ? e.touches[0] : e; graph.downX = pos.screenX; graph.downY = pos.screenY; graph.moveX = pos.screenX; graph.moveY = pos.screenY; // Engage the click component selection right away // on mouse controlled devices if (typeof e.touches == 'undefined') onclick(e); // Find and remember draggable component var dragging = draggable(e.target); if (dragging == null || dragging != graph.selected) return true; graph.dragging = dragging; graph.dragged = false; // Remember current drag position graph.dragX = pos.screenX; graph.dragY = pos.screenY; // Start move animation ui.animation(onmoveanimation); e.preventDefault(); return true; }; if (!ui.isMobile()) { graphdiv.onmousedown = function(e) { //debug('onmousedown'); return onmousedown(e); } } else { graphdiv.ontouchstart = function(e) { //debug('ontouchstart'); return onmousedown(e); } } /** * Handle a mouse up or touch end event. */ function onmouseup(e) { // Engage the click component selection now on touch devices if (ui.isMobile()) { if (!graph.dragged && graph.moveX == graph.downX && graph.moveY == graph.downY) return onclick(e); } // Stop here if the component was not dragged if (graph.dragging == null) return true; if (!graph.dragged) { graph.dragging = null; return true; } if (graph.dragging.parentNode == graphdiv && graph.dragging.id.substring(0, 8) != 'palette:') { // Add new dragged component to the composite if (isNull(graph.dragging.compos)) { var compos = scdl.composite(graphdiv.compos); setElement(compos, graph.sortcompos(graph.addcomps(mklist(graph.dragging.comp), compos))); graph.dragging.compos = graphdiv.compos; } // Update component position setElement(graph.dragging.comp, graph.movecomp(graph.dragging.comp, graph.abspos(graph.draggingg))); // Wire component to neighboring reference if (!isNull(graph.dragging.svcpos)) { var compos = scdl.composite(graphdiv.compos); setElement(compos, graph.sortcompos(graph.clonerefs(graph.wire(graph.dragging, compos, graphdiv)))); } // Snap top level component position to grid if (graph.dragging.parentNode == graphdiv) { var gpos = graph.relpos(graph.dragging); setElement(graph.dragging.comp, graph.movecomp(graph.dragging.comp, graph.mkpath().pos(graph.gridsnap(gpos.x), graph.gridsnap(gpos.y)))); } } // Forget current dragged component graph.dragging = null; graph.dragged = false; // Refresh the composite //debug('onmouseup refresh'); var nodes = graph.refresh(graphdiv); // Reselect the previously selected component if (!isNull(graph.selected)) { graph.selected = graph.findcompnode(scdl.name(graph.selected.comp), nodes); graph.compselect(graph.selected, true, atitle, cvalue, ccopy, cdelete); // Trigger component select event graph.oncompselect(graph.selected); } // Trigger composite change event graph.oncomposchange(false); return true; }; if (!ui.isMobile()) { graphdiv.onmouseup = function(e) { //debug('onmouseup'); return onmouseup(e); } } else { graphdiv.ontouchend = function(e) { //debug('ontouchend'); return onmouseup(e); } } /** * Handle a mouse or touch click event. */ function onclick(e) { //debug('onclick logic'); // Find selected component var selected = draggable(e.target); if (selected == null) { if (graph.selected != null) { // Reset current selection graph.compselect(graph.selected, false, atitle, cvalue, ccopy, cdelete); graph.selected = null; // Trigger component select event graph.oncompselect(null); } // Dismiss the palette if (e.target == graphdiv && ui.numpos(graphdiv.style.left) != (graph.palcx * -1)) graphdiv.style.left = ui.pixpos(graph.palcx * -1); return true; } // Ignore duplicate click events if (selected == graph.selected) return true; if (selected.id.substring(0, 8) == 'palette:' && ui.numpos(graphdiv.style.left) != 0) return true; // Deselect previously selected component graph.compselect(graph.selected, false, atitle, cvalue, ccopy, cdelete); // Clone component from the palette if (selected.id.substring(0, 8) == 'palette:') { var compos = scdl.composite(graphdiv.compos); var comp = graph.clonepalette(selected, compos); setElement(compos, graph.sortcompos(graph.addcomps(mklist(comp), compos))); // Move into the editing area and hide the palette graphdiv.style.left = ui.pixpos(graph.palcx * -1); // Refresh the composite //debug('onclick refresh'); var nodes = graph.refresh(graphdiv); // Reselect the previously selected component graph.selected = graph.findcompnode(scdl.name(comp), nodes); graph.compselect(graph.selected, true, atitle, cvalue, ccopy, cdelete); // Trigger component select event graph.oncompselect(graph.selected); // Trigger composite change event graph.oncomposchange(true); } else { graph.selected = selected; // Select the component graph.compselect(graph.selected, true, atitle, cvalue, ccopy, cdelete); // Trigger component select event graph.oncompselect(graph.selected); } //debug('comp selected'); e.preventDefault(); return true; } if (!ui.isMobile()) { graphdiv.onclick = function(e) { //debug('onclick'); return onclick(e); } } else { graphdiv.onclick = function(e) { //debug('onclick'); return onclick(e); } } /** * Handle a mouse or touch move event. */ if (!ui.isMobile()) { window.onmousemove = function(e) { //debug('onmousemove'); // Record mouse position graph.moveX = e.screenX; graph.moveY = e.screenY; if (graph.dragging == null) return true; return false; } } else { graphdiv.ontouchmove = function(e) { //debug('ontouchmove'); // Record touch position var pos = e.touches[0]; graph.moveX = pos.screenX; graph.moveY = pos.screenY; if (graph.dragging == null) return true; return false; } } /** * Handle field on change events. */ function onvaluechange() { if (graph.selected == null) return false; if (graphdiv.parentNode.style.display == 'none') return false; // Change component name and refactor references to it function changename() { var compos = scdl.composite(graphdiv.compos); cvalue.value = graph.ucid(cvalue.value, compos, false); graph.selected.id = cvalue.value; setElement(compos, graph.sortcompos(graph.renamecomp(graph.selected.comp, compos, cvalue.value))); // Refresh the composite //debug('onchangename refresh'); var nodes = graph.refresh(graphdiv); // Reselected the previously selected component graph.selected = graph.findcompnode(scdl.name(graph.selected.comp), nodes); graph.compselect(graph.selected, true, atitle, cvalue, ccopy, cdelete); // Trigger component select event graph.oncompselect(graph.selected); // Trigger composite change event graph.oncomposchange(true); return false; } // Change the component property value function changeprop() { graph.setproperty(graph.selected.comp, cvalue.value); var hasprop = graph.hasproperty(graph.selected.comp); cvalue.readOnly = (hasprop? false : true) || !editable; cvalue.style.display = hasprop? 'block' : 'none'; atitle.style.display = hasprop? 'none' : 'block'; cvalue.value = graph.property(graph.selected.comp); // Refresh the composite //debug('onchangeprop refresh'); var nodes = graph.refresh(graphdiv); // Reselected the previously selected component graph.selected = graph.findcompnode(scdl.name(graph.selected.comp), nodes); graph.compselect(graph.selected, true, atitle, cvalue, ccopy, cdelete); // Trigger component select event graph.oncompselect(graph.selected); // Trigger composite change event graph.oncomposchange(true); return false; } return graph.hasproperty(graph.selected.comp)? changeprop() : changename(); }; cvalue.onchange = function() { return onvaluechange(); } // Handle delete event function ondeleteclick() { if (graph.selected == null) return false; if (graph.selected.id.substring(0, 8) != 'palette:') { // Remove selected component var compos = scdl.composite(graphdiv.compos); if (isNull(graph.selected.compos)) setElement(compos, graph.sortcompos(graph.cutwire(graph.selected, compos, graphdiv))); setElement(compos, graph.sortcompos(graph.clonerefs(graph.gcollect(graph.removecomp(graph.selected.comp, compos))))); // Reset current selection graph.compselect(graph.selected, false, atitle, cvalue, ccopy, cdelete); graph.selected = null; // Refresh the composite //debug('ondelete refresh'); graph.refresh(graphdiv); // Trigger component select event graph.oncompselect(null); // Trigger composite change event graph.oncomposchange(true); } return false; }; cdelete.onclick = function() { return ondeleteclick(); }; // Handle copy event function oncopyclick() { if (graph.selected == null) return false; if (graph.selected.id.substring(0, 8) == 'palette:') return false; // Clone the selected component var compos = scdl.composite(graphdiv.compos); var comps = graph.clonecomp(graph.selected, compos); setElement(compos, graph.sortcompos(graph.addcomps(comps, compos))); // Refresh the composite //debug('oncopyclick refresh'); var nodes = graph.refresh(graphdiv); // Select the component clone graph.selected = graph.findcompnode(scdl.name(car(comps)), nodes); graph.compselect(graph.selected, true, atitle, cvalue, ccopy, cdelete); // Trigger component select event graph.oncompselect(graph.selected); // Trigger composite change event graph.oncomposchange(true); return false; }; ccopy.onclick = function() { return oncopyclick(); }; // Handle add event cadd.onclick = function() { // Show the palette graphdiv.style.left = ui.pixpos(0); return false; }; // Create a hidden element to help compute the width of // component and reference titles graph.offtitles = document.createElement('span'); graph.offtitles.style.visibility = 'hidden'; graph.offtitles.style.display = 'block'; graph.offtitles.position = 'absolute'; graph.offtitles.top = -500; graph.offtitles.width = 500; graph.offtitles.height = 50; graphdiv.appendChild(graph.offtitles); return graphdiv; }; /** * Point class. */ graph.Point = function(x, y) { this.x = x; this.y = y; }; graph.mkpoint = function(x, y) { return new graph.Point(x, y); }; /** * Path class. */ graph.Path = function() { this.x = 0; this.y = 0; this.xmin = null; this.xmax = null; this.xmin = -8; this.ymax = null; this.draw = function(ctx) { return ctx; }; } graph.Path.prototype.pos = function(x, y) { this.x = x; this.y = y; if (this.xmin == null || x < this.xmin) this.xmin = x; if (this.xmax == null || x > this.xmax) this.xmax = x; if (this.ymin == null || y < this.ymin) this.ymin = y; if (this.ymax == null || y > this.ymax) this.ymax = y; return this; }; graph.Path.prototype.rmove = function(x, y) { return this.move(this.x + x, this.y + y); }; graph.Path.prototype.rline = function(x, y) { return this.line(this.x + x, this.y + y); }; graph.Path.prototype.rcurve = function(x1, y1, x, y) { return this.curve(this.x + x1, this.y + y1, this.x + x1 + x, this.y + y1 + y); }; graph.Path.prototype.clone = function() { return graph.mkpath().pos(this.x, this.y); }; graph.Path.prototype.move = function(x, y) { var d = this.draw; this.draw = function(ctx) { d(ctx); ctx.moveTo(x, y); return ctx; }; return this.pos(x, y); }; graph.Path.prototype.line = function(x, y) { var d = this.draw; this.draw = function(ctx) { d(ctx); ctx.lineTo(x, y); return ctx; }; return this.pos(x, y); }; graph.Path.prototype.curve = function(x1, y1, x, y) { var d = this.draw; this.draw = function(ctx) { d(ctx); ctx.quadraticCurveTo(x1, y1, x, y); return ctx; }; return this.pos(x, y); }; graph.Path.prototype.end = function() { var d = this.draw; this.draw = function(ctx) { ctx.beginPath(); d(ctx); ctx.fill(); ctx.beginPath(); d(ctx); ctx.stroke(); }; return this; }; graph.Path.prototype.bounds = function() { var width = this.xmin == null || this.xmax == null? 0 : this.xmax - this.xmin + 1; var height = this.ymin == null || this.ymax == null? 0 : this.ymax - this.ymin + 1; return graph.mkpath().pos(width, height); }; graph.mkpath = function() { return new graph.Path(); }; /** * Translate the position of an element. */ graph.translate = function(g, x, y) { var t = 'translate(' + ui.pixpos(x) + ',' + ui.pixpos(y) + ')'; g.style.setProperty('-webkit-transform', t, null); g.style.setProperty('-moz-transform', t, null); g.style.setProperty('-o-transform', t, null); g.style.setProperty('transform', t, null); g.ctmx = x; g.ctmy = y; return g; }; /** * Apply a path to an element. */ graph.drawshape = function(g) { // Set shape element size var b = g.path.bounds(); g.width = b.x + 4; g.height = b.y + 4; // Get canvas context var ctx = g.getContext('2d'); ctx.save(); // Apply translation ctx.translate((g.path.xmin * -1) + 2, (g.path.ymin * -1) + 2); // Draw the shape ctx.fillStyle = g.fillStyle; ctx.strokeStyle = !isNull(g.strokeStyle)? g.strokeStyle : graph.colors.gray; ctx.lineWidth = !isNull(g.lineWidth)? g.lineWidth : 1; g.path.draw(ctx); // Reset canvas context ctx.restore(); return g; } /** * Return an element representing a title. */ graph.mktitle = function(t, x, y) { var title = document.createElement('span'); title.className = 'gtitle'; title.style.left = ui.pixpos(x); title.style.top = ui.pixpos(y); title.appendChild(document.createTextNode(t)); graph.offtitles.appendChild(title); title.style.width = ui.pixpos(title.clientWidth + 2); title.style.height = ui.pixpos(title.clientHeight + 2); return title; }; /** * Return an element representing the title of a component. */ graph.comptitle = function(comp) { return memo(comp, 'title', function() { var ct = graph.title(comp); var pt = graph.propertytitle(comp); if (ct == '' && pt == '') return null; return graph.mktitle((ct != '' && pt != '')? ct + ' ' + pt : ct + pt, graph.titlex, graph.titley); }); }; /** * Return the width of the title of a component. */ graph.comptitlewidth = function(comp) { var title = graph.comptitle(comp); if (isNull(title)) return 0; return title.clientWidth; }; /** * Draw a component shape selection. */ graph.compselect = function(g, s, atitle, cvalue, ccopy, cdelete) { if (isNull(g) || !s) { cvalue.value = ''; cvalue.readOnly = true; cvalue.style.display = 'none'; atitle.style.display = 'block'; ccopy.disabled = true; cdelete.disabled = true; if (isNull(g)) return true; g.shape.strokeStyle = null; g.shape.lineWidth = null; graph.drawshape(g.shape); return true; } cvalue.value = graph.hasproperty(g.comp)? graph.property(g.comp) : g.id; cvalue.readOnly = false || !editable; cvalue.style.display = 'block'; atitle.style.display = 'none'; ccopy.disabled = false || !editable; cdelete.disabled = false || !editable; g.shape.strokeStyle = graph.colors.link; g.shape.lineWidth = 2; graph.drawshape(g.shape); g.parentNode.appendChild(g); return true; }; /** * Draw a palette shape selection. */ graph.paletteselect = function(g, s) { if (isNull(g)) return true; if (!s) { g.shape.strokeStyle = null; g.shape.lineWidth = null; graph.drawshape(g.shape); return true; } g.shape.strokeStyle = graph.colors.link; g.shape.lineWidth = 2; graph.drawshape(g.shape); g.parentNode.appendChild(g); return true; }; /** * Return a node representing a component. */ graph.compnode = function(comp, cassoc, pos) { //debug('compnode', graph.title(comp)); // Create the component shape var shape = document.createElement('canvas'); shape.className = 'path'; shape.fillStyle = graph.color(comp); shape.path = graph.comppath(comp, cassoc); graph.drawshape(shape); // Make the component title element var title = graph.comptitle(comp); // Create a span group element and add the shape and title to it var g = document.createElement('span'); g.className = 'g'; g.comp = comp; g.id = scdl.name(comp); graph.translate(g, pos.x, pos.y); g.pos = pos.clone(); g.appendChild(shape); g.shape = shape; g.style.width = ui.pixpos(shape.width); g.style.height = ui.pixpos(shape.height); if (!isNull(title)) { title.style.left = ui.pixpos(shape.path.xmin * -1); g.appendChild(title); } // Store the positions of the services and references g.refpos = reverse(shape.path.refpos); g.svcpos = reverse(shape.path.svcpos); return g; }; /** * Find the node representing a component. */ graph.findcompnode = function(name, nodes) { if (isNull(nodes)) return null; if (isNull(car(nodes).comp)) return graph.findcompnode(name, cdr(nodes)); if (name == scdl.name(car(nodes).comp)) return car(nodes); var node = graph.findcompnode(name, nodeList(car(nodes).childNodes)); if (!isNull(node)) return node; return graph.findcompnode(name, cdr(nodes)); } /** * Return a graphical group. */ graph.mkgroup = function(pos) { var g = document.createElement('div'); g.className = 'g'; graph.translate(g, pos.x, pos.y); g.pos = pos.clone(); return g; }; /** * Return a node representing a button. */ graph.mkbutton = function(t, pos) { // Create the main button shape var shape = document.createElement('canvas'); shape.className = 'path'; shape.fillStyle = graph.colors.lightgray1; shape.path = graph.buttonpath(); graph.drawshape(shape); // Make the button title var title = graph.mktitle(t, graph.titlex, graph.titley); // Create a group and add the button shape and title to it var g = document.createElement('span'); g.className = 'g'; graph.translate(g, pos.x, pos.y); g.pos = pos.clone(); g.appendChild(shape); g.appendChild(title); // Store the button shape in the group g.shape = shape; return g; }; /** * Return the position of a node relative to its parent. */ graph.relpos = function(g) { var curX = g.ctmx? g.ctmx : 0; var curY = g.ctmy? g.ctmy : 0; return graph.mkpath().pos(curX, curY); }; /** * Move a node. */ graph.move = function(g, pos) { g.pos = pos.clone(); graph.translate(g, g.pos.x, g.pos.y); return g; }; /** * Return the absolute position of a component node. */ graph.abspos = function(e) { if (isNull(e) || e == graphdiv) return graph.mkpath(); var gpos = graph.relpos(e); var pgpos = graph.abspos(e.parentNode); return graph.mkpath().pos(gpos.x + pgpos.x, gpos.y + pgpos.y); }; /** * Bring a component node to the top. */ graph.bringtotop = function(n, g) { if (n == g) return null; graph.move(n, graph.abspos(n)); g.appendChild(n); } /** * Return the title of a SCDL element. */ graph.title = function(e) { var t = scdl.title(e); if (t != null) { if (t == 'gt') return '>' if (t == 'lt') return '<'; if (t.indexOf('{propval}') != -1) return ''; if (t.indexOf('{compname}') == -1) return t; return t.replace('{compname}', scdl.name(e)); } return scdl.name(e); }; /** * Return the property value of a SCDL component. */ graph.property = function(e) { var p = scdl.properties(e); if (isNull(p)) return ''; if (scdl.visible(car(p)) == 'false') return ''; var pv = scdl.propertyValue(car(p)); return pv; }; /** * Return the title of a property of a SCDL component. */ graph.propertytitle = function(e) { var pv = graph.property(e); var t = scdl.title(e); if (t.indexOf('{propval}') == -1) return pv; return t[0] == ' '? t.substr(1).replace('{propval}', pv) : t.replace('{propval}', pv); }; /** * Return true if a SCDL component has a property. */ graph.hasproperty = function(e) { var p = scdl.properties(e); if (isNull(p)) return false; if (scdl.visible(car(p)) == 'false') return false; return true; }; /** * Change the property value of a SCDL component. */ graph.setproperty = function(e, value) { var p = scdl.properties(e); if (isNull(p)) return ''; if (scdl.visible(car(p)) == 'false') return ''; var name = scdl.name(car(p)); setElement(car(p), mklist(element, "'property", mklist(attribute, "'name", name != null? name : "property"), value)); return value; }; /** * Return the color of a SCDL component. */ graph.color = function(comp) { return memo(comp, 'color', function() { var c = scdl.color(comp); return c == null? graph.colors.blue1 : graph.colors[c]; }); }; /** * Return the services on the left side of a component. */ graph.lsvcs = function(comp) { return memo(comp, 'lsvcs', function() { var svcs = scdl.services(comp); if (isNull(svcs)) return mklist(mklist("'element","'service","'attribute","'name",scdl.name(comp))); var l = filter(function(s) { var a = scdl.align(s); var v = scdl.visible(s); return (a == null || a == 'left') && v != 'false'; }, svcs); if (isNull(l)) return mklist(); return mklist(car(l)); }); }; /** * Return the references on the right side of a component. */ graph.rrefs = function(comp) { return memo(comp, 'rrefs', function() { return filter(function(r) { var a = scdl.align(r); var v = scdl.visible(r); return (a == null || a == 'right') && v != 'false'; }, scdl.references(comp)); }); }; /** * Return the height of a reference on the right side of a component. */ graph.rrefheight = function(ref, cassoc) { return memo(ref, 'rheight', function() { var target = assoc(scdl.target(ref), cassoc); if (isNull(target)) return graph.tabsz * 8; return graph.compclosureheight(cadr(target), cassoc); }); }; /** * Return the total height of the references on the right side of a component. */ graph.rrefsheight = function(refs, cassoc) { if (isNull(refs)) return 0; return graph.rrefheight(car(refs), cassoc) + graph.rrefsheight(cdr(refs), cassoc); }; /** * Return the height of a component node. */ graph.compheight = function(comp, cassoc) { return memo(comp, 'height', function() { var lsvcs = graph.lsvcs(comp); var lsvcsh = Math.max(1, length(lsvcs)) * (graph.tabsz * 8) + (graph.tabsz * 4); var rrefs = graph.rrefs(comp); var rrefsh = graph.rrefsheight(rrefs, cassoc) + (graph.tabsz * 2); return Math.max(lsvcsh, rrefsh); }); }; /** * Return the height of a component and the components wired to its bottom side. */ graph.compclosureheight = function(comp, cassoc) { return memo(comp, 'closureheight', function() { return graph.compheight(comp, cassoc); }); }; /** * Return the max width of the references on the right side of a component. */ graph.rrefswidth = function(refs, cassoc) { if (isNull(refs)) return 0; return Math.max(graph.rrefwidth(car(refs), cassoc), graph.rrefswidth(cdr(refs), cassoc)); }; /** * Return the width of a component. */ graph.compwidth = function(comp, cassoc) { return memo(comp, 'width', function() { var ctw = graph.comptitlewidth(comp); var rrefsw = (isNull(graph.rrefs(comp))? 0 : (graph.tabsz * 4)); var twidth = (graph.titlex * 2) + ctw + rrefsw; var width = Math.max(twidth, (graph.tabsz * 8) + (graph.tabsz * 4)); return width; }); }; /** * Return a path representing a reference positioned to the right of a component. */ graph.rrefpath = function(ref, cassoc, path, maxheight) { var height = graph.rrefheight(ref, cassoc); // Record reference position in the path var xpos = path.x; var ypos = path.y; path.refpos = cons(mklist(ref, graph.mkpath().pos(xpos, ypos + (graph.tabsz * 5))), path.refpos); // Compute the reference path return path.rline(0,graph.tabsz * 2).rcurve(0,graph.tabsz,-graph.tabsz,0).rcurve(-graph.tabsz,0,0,-graph.tabsz/2.0).rcurve(0,-graph.tabsz/2.0,-graph.tabsz,0).rcurve(-graph.tabsz,0,0,graph.tabsz/2.0).rline(0,graph.tabsz * 3).rcurve(0,graph.tabsz/2.0,graph.tabsz,0).rcurve(graph.tabsz,0,0,-graph.tabsz/2.0).rcurve(0,-graph.tabsz/2.0,graph.tabsz,0).rcurve(graph.tabsz,0,0,graph.tabsz).line(path.x, Math.min(ypos + height, maxheight)); }; /** * Return a path representing a service positioned to the left of a component. */ graph.lsvcpath = function(svc, cassoc, path, minheight) { var height = graph.tabsz * 8; // Record service position in the path var xpos = path.x; var ypos = path.y; path.svcpos = cons(mklist(svc, graph.mkpath().pos(xpos, ypos - (graph.tabsz * 6))), path.svcpos); // Compute the service path return path.rline(0, -(graph.tabsz * 2)).rcurve(0,-graph.tabsz,-graph.tabsz,0).rcurve(-graph.tabsz,0,0,graph.tabsz/2.0).rcurve(0,graph.tabsz/2.0,-graph.tabsz,0).rcurve(-graph.tabsz,0,0,-graph.tabsz/2.0).rline(0,-(graph.tabsz * 3)).rcurve(0,-graph.tabsz/2.0,graph.tabsz,0).rcurve(graph.tabsz,0,0,graph.tabsz/2.0).rcurve(0,graph.tabsz/2.0,graph.tabsz,0).rcurve(graph.tabsz,0,0,-graph.tabsz).line(path.x, Math.max(ypos - height, minheight)); }; /** * Return a path representing a component node. */ graph.comppath = function(comp, cassoc) { // Calculate the width and height of the component node var width = graph.compwidth(comp, cassoc); var height = graph.compheight(comp, cassoc); /** * Apply a path rendering function to a list of services or references. */ function renderpath(x, f, cassoc, path, height) { if (isNull(x)) return path; return renderpath(cdr(x), f, cassoc, f(car(x), cassoc, path, height), height); } var path = graph.mkpath().move(graph.curvsz,0); // Store the positions of services and references in the path path.refpos = mklist(); path.svcpos = mklist(); // Render the references on the right side of the component var rrefs = graph.rrefs(comp); path = path.line(width - graph.curvsz,path.y).rcurve(graph.curvsz,0,0,graph.curvsz); path = renderpath(rrefs, graph.rrefpath, cassoc, path, height - graph.curvsz); // Render the references on the bottom side of the component var boffset = graph.curvsz; path = path.line(path.x,height - graph.curvsz).rcurve(0,graph.curvsz,graph.curvsz * -1,0).line(boffset, path.y); // Render the services on the left side of the component var lsvcs = graph.lsvcs(comp); var loffset = graph.curvsz + (length(lsvcs) * (graph.tabsz * 8)); path = path.line(graph.curvsz,path.y).rcurve(graph.curvsz * -1,0,0,graph.curvsz * -1).line(path.x, loffset); path = renderpath(lsvcs, graph.lsvcpath, cassoc, path, graph.curvsz); // Close the component node path path = path.line(0,graph.curvsz).rcurve(0,graph.curvsz * -1,graph.curvsz,0); return path.end(); }; /** * Return the position of a component. */ graph.comppos = function(comp, pos) { var x = scdl.x(comp); var y = scdl.y(comp); return graph.mkpath().pos(x != null? Number(x) + graph.palcx : pos.x, y != null? Number(y) : pos.y); }; /** * Return a path representing a button node. */ graph.buttonpath = function(t) { var path = graph.mkpath().move(graph.curvsz,0); path = path.line(graph.buttoncx - graph.curvsz,path.y).rcurve(graph.curvsz,0,0,graph.curvsz); path = path.line(path.x,graph.buttoncy - graph.curvsz).rcurve(0,graph.curvsz,-graph.curvsz,0).line(graph.curvsz, path.y); path = path.line(graph.curvsz,path.y).rcurve(-graph.curvsz,0,0,-graph.curvsz).line(path.x, graph.curvsz); path = path.line(0,graph.curvsz).rcurve(0,-graph.curvsz,graph.curvsz,0); return path.end(); }; /** * Render a SCDL composite into a list of component nodes. */ graph.composite = function(compos, pos, aspalette) { var name = scdl.name(scdl.composite(compos)); var comps = scdl.components(compos); var cassoc = scdl.nameToElementAssoc(comps); var proms = scdl.promotions(compos); // Unmemoize any memoized info about components and their references. map(function(c) { unmemo(c); map(function(r) { unmemo(r); }, scdl.references(c)); }, comps); /** * Render a component. */ function rendercomp(comp, cassoc, pos) { /** * Render the references on the right side of a component. */ function renderrrefs(refs, cassoc, pos, gcomp) { /** * Render a reference on the right side of a component. */ function renderrref(ref, cassoc, pos, gcomp) { var target = assoc(scdl.target(ref), cassoc); if (isNull(target)) return null; // Render the component target of the reference return rendercomp(cadr(target), cassoc, pos); } /** * Move the rendering cursor down below a reference. */ function rendermove(ref, cassoc, pos) { return pos.clone().rmove(0, graph.rrefheight(ref, cassoc)); } if (isNull(refs)) return mklist(); // Return list of (ref, comp rendering) pairs var grefcomp = renderrref(car(refs), cassoc, pos, gcomp); return cons(mklist(car(refs), grefcomp), renderrrefs(cdr(refs), cassoc, rendermove(car(refs), cassoc, pos), gcomp)); } // Compute the component shape var gcomp = graph.compnode(comp, cassoc, pos); // Render the components wired to the component references var rrefs = graph.rrefs(comp); var rpos = graph.mkpath().rmove(graph.compwidth(comp, cassoc), 0); var grrefs = renderrrefs(rrefs, cassoc, rpos, gcomp); // Store list of (ref, pos, component rendering) triplets in the component function refposgcomp(refpos, grefs) { if (isNull(refpos)) return mklist(); // Append component rendering to component var gref = cadr(car(grefs)); if (gref != null) gcomp.appendChild(gref); return cons(mklist(car(car(refpos)), cadr(car(refpos)), gref), refposgcomp(cdr(refpos), cdr(grefs))); } gcomp.refpos = refposgcomp(gcomp.refpos, grrefs); return gcomp; } /** * Render a list of promoted service components. */ function renderproms(svcs, cassoc, pos) { /** * Return the component promoted by a service. */ function promcomp(svc, cassoc) { var c = assoc(scdl.promote(svc), cassoc); if (isNull(c)) return mklist(); return cadr(c); } /** * Move the rendering cursor down below a component. */ function rendermove(comp, cassoc, pos) { return pos.clone().rmove(0, graph.compclosureheight(comp, cassoc) + Math.max((graph.tabsz * 2), 8)); } if (isNull(svcs)) return mklist(); // Render the first promoted component in the list // then recurse to render the rest of the list var comp = promcomp(car(svcs), cassoc); if (isNull(comp)) return renderproms(cdr(svcs), cassoc, rendermove(car(svcs), cassoc, pos)); var cpos = graph.comppos(comp, pos); return cons(rendercomp(comp, cassoc, cpos), renderproms(cdr(svcs), cassoc, rendermove(comp, cassoc, cpos))); } // Render the promoted service components var rproms = renderproms(proms, cassoc, pos.clone().rmove(graph.tabsz * 4, graph.tabsz * 4)); if (aspalette) { // Prefix ids of palette component elements with 'palette:' and // move them to the palette area return map(function(r) { r.id = 'palette:' + r.id; var gpos = r.pos; graph.move(r, graph.mkpath().pos(gpos.x - graph.palcx, gpos.y)); return r; }, rproms); } else { // Link app component elements to the containing composite return map(function(r) { r.compos = compos; return r; }, rproms); } }; /** * Return a component unique id. */ graph.ucid = function(prefix, compos1, compos2, clone) { // Build an assoc list keyed by component name var comps = map(function(c) { return mklist(scdl.name(c), c); }, append(namedElementChildren("'component", compos1), namedElementChildren("'component", compos2))); if (!clone && isNull(assoc(prefix, comps))) return prefix; /** * Find a free component id. */ function ucid(p, id) { if (isNull(assoc(p + id, comps))) return p + id; return ucid(p, id + 1); } /** * Remove trailing digits from a prefix. */ function untrail(p) { if (p.length < 2 || p[p.length - 1] < '0' || p[p.length - 1] > '9') return p; return untrail(p.substring(0, p.length - 1)); } return ucid(prefix == ''? 'comp' : (clone? untrail(prefix) : prefix), 1); }; /** * Clone a palette component node. */ graph.clonepalette = function(e, compos) { // Clone the SCDL component and give it a unique name var wcomp = append(mklist(element, "'component", mklist(attribute, "'name", graph.ucid(scdl.name(e.comp), compos, compos, true))), filter(function(c) { return !(isAttribute(c) && attributeName(c) == "'name")}, elementChildren(e.comp))); var x = '<composite>' + writeXML(mklist(wcomp), false) + '</composite>'; var rcompos = scdl.composite(readXML(mklist(x))); var comp = car(scdl.components(mklist(rcompos))); // Update component position setElement(comp, graph.movecomp(comp, graph.abspos(e).rmove(graph.palcx, 0))); return comp; }; /** * Move a SCDL component to the given position. */ graph.movecomp = function(comp, pos) { if (isNull(pos)) return append(mklist(element, "'component"), filter(function(e) { return !(isAttribute(e) && (attributeName(e) == "'x" || attributeName(e) == "'y")); }, elementChildren(comp))); return append(mklist(element, "'component", mklist(attribute, "'x", '' + (pos.x - graph.palcx)), mklist(attribute, "'y", '' + pos.y)), filter(function(e) { return !(isAttribute(e) && (attributeName(e) == "'x" || attributeName(e) == "'y")); }, elementChildren(comp))); }; /** * Align a pos along a 10pixel grid. */ graph.gridsnap = function(x) { return Math.round(x / 10) * 10; } /** * Clone a component node and all the components it references. */ graph.clonecomp = function(e, compos) { // Write the component and the components it references to XML function collectcomp(e) { function collectrefs(refpos) { if (isNull(refpos)) return mklist(); var r = car(refpos); var n = caddr(r); if (isNull(n)) return collectrefs(cdr(refpos)); return append(collectcomp(n), collectrefs(cdr(refpos))); } return cons(e.comp, collectrefs(e.refpos)); } var allcomps = collectcomp(e); var ls = map(function(e) { return writeXML(mklist(e), false); }, allcomps); var x = '<composite>' + writeStrings(ls) + '</composite>'; // Read them back from XML to clone them var rcompos = scdl.composite(readXML(mklist(x))); var comps = scdl.components(mklist(rcompos)); // Give them new unique names map(function(e) { // Rename each component var oname = scdl.name(e); var name = graph.ucid(oname, compos, rcompos, true); setElement(e, append(mklist(element, "'component", mklist(attribute, "'name", name)), filter(function(c) { return !(isAttribute(c) && attributeName(c) == "'name")}, elementChildren(e)))); // Refactor references to the component map(function(c) { return graph.refactorrefs(scdl.references(c), oname, name); }, comps); }, comps); // Update the top component position var comp = car(comps); setElement(comp, graph.movecomp(comp, graph.abspos(e).rmove(10, 10))); return comps; }; /** * Sort elements of a composite. */ graph.sortcompos = function(compos) { return append(mklist(element, "'composite"), elementChildren(compos).sort(function(a, b) { // Sort attributes, place them at the top var aa = isAttribute(a); var ba = isAttribute(b); if (aa && !ba) return -1; if (!aa && ba) return 1; if (aa && ba) { var aan = attributeName(a); var ban = attributeName(b); if (aan < ban) return -1; if (aan > ban) return 1; return 0; } // Sort elements, place services before components var aen = elementName(a); var ben = elementName(b); if (aen == "'service" && ben == "'component") return -1; if (aen == "'component" && ben == "'service") return 1; var an = scdl.name(a); var bn = scdl.name(b); if (an < bn) return -1; if (an > bn) return 1; return 0; })); } /** * Add a list of components to a SCDL composite. The first * component in the list is a promoted component. */ graph.addcomps = function(comps, compos) { var comp = car(comps); var name = scdl.name(comp); var prom = mklist(element, "'service", mklist(attribute, "'name", name), mklist(attribute, "'promote", name)); return append(mklist(element, "'composite"), append(elementChildren(compos), cons(prom, comps))); }; /** * Remove a component from a SCDL composite. */ graph.removecomp = function(comp, compos) { var name = scdl.name(comp); return append(mklist(element, "'composite"), filter(function(c) { return !(isElement(c) && scdl.name(c) == name); }, elementChildren(compos))); }; /** * Garbage collect components not referenced or promoted. */ graph.gcollect = function(compos) { // List the promoted components var proms = map(function(s) { return mklist(scdl.promote(s), true); }, scdl.promotions(mklist(compos))); // List the referenced components var refs = reduce(function(a, comp) { return append(a, map(function(ref) { return mklist(scdl.target(ref), true); }, filter(function(ref) { return scdl.target(ref) != null; }, scdl.references(comp)))); }, mklist(), scdl.components(mklist(compos))); // Filter out the unused components var used = append(proms, refs); return append(mklist(element, "'composite"), filter(function(c) { return !(isElement(c) && elementName(c) == "'component" && isNull(assoc(scdl.name(c), used))); }, elementChildren(compos))); } /** * Clone and cleanup clonable references. */ graph.clonerefs = function(compos) { return append(mklist(element, "'composite"), map(function(c) { if (elementName(c) != "'component") return c; // If the references are clonable var refs = scdl.references(c); if (isNull(refs)) return c; if (scdl.clonable(car(refs)) != 'true') return c; // Filter out the unwired references and add a fresh unwired // reference at the end of the list var cc = append( filter(function(e) { return !(elementName(e) == "'reference" && scdl.target(e) == null); }, elementChildren(c)), mklist(mklist(element, "'reference", mklist(attribute, "'name", scdl.name(car(refs))), mklist(attribute, "'clonable", "true")))); return append(mklist(element, "'component"), cc); }, elementChildren(compos))); } /** * Refactor references to a component. */ graph.refactorrefs = function(refs, oname, nname) { if (isNull(refs)) return true; var ref = car(refs); if (scdl.target(ref) != oname) return graph.refactorrefs(cdr(refs), oname, nname); // Change the reference's target attribute setElement(ref, append(mklist(element, "'reference"), append(filter(function(e) { return !(isAttribute(e) && attributeName(e) == "'target"); }, elementChildren(ref)), mklist(mklist(attribute, "'target", nname))))); return graph.refactorrefs(cdr(refs), oname, nname); }; /** * Rename a component. */ graph.renamecomp = function(comp, compos, name) { // Refactor all the references to the renamed component var oname = scdl.name(comp); map(function(c) { return graph.refactorrefs(scdl.references(c), oname, name); }, namedElementChildren("'component", compos)); // Rename the SCDL promoted service and component var proms = filter(function(s) { return scdl.name(s) == oname }, scdl.services(compos)); if (!isNull(proms)) setElement(car(proms), mklist(element, "'service", mklist(attribute, "'name", name), mklist(attribute, "'promote", name))); setElement(comp, append(mklist(element, "'component"), cons(mklist(attribute, "'name", name), filter(function(e) { return !(isAttribute(e) && attributeName(e) == "'name"); }, elementChildren(comp))))); return append(mklist(element, "'composite"), elementChildren(compos)); }; /** * Cut the wire to a component node and make that node a * top level component node. */ graph.cutwire = function(node, compos, g) { /** * Find the reference wired to a node and cut its wire. */ function cutref(refs, node) { if (isNull(refs)) return true; var ref = car(refs); if (caddr(ref) == node) { setlist(ref, mklist(car(ref), cadr(ref), null)); setElement(car(ref), append(mklist(element, "'reference"), filter(function(e) { return !(isAttribute(e) && attributeName(e) == "'target"); }, elementChildren(car(ref))))); } return cutref(cdr(refs), node); } // Cut any reference wire, if found cutref(node.parentNode.refpos, node); // Make the component node a top level node. node.compos = g.compos; // Update the SCDL composite, add a promote element for // that component var comp = node.comp; var name = scdl.name(comp); var prom = mklist(element, "'service", mklist(attribute, "'name", name), mklist(attribute, "'promote", name)); return append(mklist(element, "'composite"), append(mklist(prom), filter(function(c) { return !(isElement(c) && elementName(c) == "'service" && scdl.name(c) == name); }, elementChildren(compos)))); } /** * Wire a component to the closest neighbor reference. */ graph.wire = function(n, compos, g) { // Compute position of the component's service node var spos = cadr(car(n.svcpos)); var aspos = graph.abspos(n).rmove(spos.x, spos.y); /** * Find closest unwired reference node among all the references * of all the components. */ function closecomprefs(nodes, spos, cref) { /** * Find the closest unwired reference node among all the * references of a node. */ function closerefs(npos, refs, spos, cref) { if (isNull(refs)) return cref; var fdist = cadddr(cref); var ref = car(refs); // Skip wired reference if (!isNull(filter(function(n) { return isAttribute(n) && attributeName(n) == "'target"; }, car(ref)))) return closerefs(npos, cdr(refs), spos, cref); // Compute distance between service node and reference node var rpos = cadr(ref).clone().rmove(npos.x, npos.y); var dx = Math.pow(rpos.x - spos.x, 2); var dy = Math.pow(rpos.y - spos.y, 2); // Check for proximity threshold var rdist = (dx < (graph.proxcx * graph.proxcx) && dy < (graph.proxcy * graph.proxcy))? Math.sqrt(dx + dy) : 25000000; // Go through all the references in the component return closerefs(npos, cdr(refs), spos, fdist < rdist? cref : mklist(car(ref), cadr(ref), caddr(ref), rdist)); } if (isNull(nodes)) return cref; // Skip non-component nodes var node = car(nodes); if (isNull(node.comp)) return closecomprefs(cdr(nodes), spos, cref); // Compute the component absolute position var npos = graph.abspos(node); // Go through all the components and their references return closecomprefs(append(nodeList(node.childNodes), cdr(nodes)), spos, closerefs(npos, node.refpos, spos, cref)); } // Find closest reference node var cref = closecomprefs(nodeList(g.childNodes), aspos, mklist(null, graph.mkpath(), null, 25000000)); if (car(cref) == null) return compos; if (cadddr(cref) == 25000000) return compos; // Wire component to that reference, un-promote it, and // update the SCDL reference and composite setElement(n.comp, graph.movecomp(graph.dragging.comp, null)); n.compos = null; setElement(car(cref), append(mklist(element, "'reference", mklist(attribute, "'target", scdl.name(n.comp))), elementChildren(car(cref)))); var name = scdl.name(n.comp); return append(mklist(element, "'composite"), filter(function(c) { return !(isElement(c) && elementName(c) == "'service" && scdl.name(c) == name); }, elementChildren(compos))); } /** * Display a list of graphical nodes. */ graph.display = function(nodes, g) { // Append the nodes to the graphical canvas appendNodes(nodes, g); return nodes; }; /** * Hide a graph. */ graph.hide = function(g) { // Remove nodes from the graph map(function(n) { if (!isNull(n.comp) && n.id.substr(0, 8) != 'palette:') { g.removeChild(n); } return n; }, nodeList(g.childNodes)); return g; }; /** * Refresh a graph. */ graph.refresh = function(g) { //debug('refresh'); // Remove existing nodes from the graph map(function(n) { if (!isNull(n.comp) && n.id.substr(0, 8) != 'palette:') { g.removeChild(n); } return n; }, nodeList(g.childNodes)); // Redisplay the composite associated with the graph var nodes = graph.composite(g.compos, graph.mkpath().pos(graph.palcx,0), false); appendNodes(nodes, g); return nodes; }; /** * Display and enable editing of a composite and the graphical * nodes that represent it. */ graph.edit = function(appname, compos, nodes, g) { // Store the composite elements, and sort them to allow for change detection later g.compos = compos; var scompos = scdl.composite(g.compos); setElement(scompos, graph.sortcompos(scompos)); // Remove existing nodes from the graph map(function(n) { if (!isNull(n.comp) && n.id.substr(0, 8) != 'palette:') { g.removeChild(n); } return n; }, nodeList(g.childNodes)); // Display the composite nodes appendNodes(nodes, g); return nodes; }; /** * Track the composition graph, whether it's visible or not and the selected component. */ var gvisible = true; var gcomp = null; var cdiv = $('contentdiv'); var pdiv = $('playdiv'); var graphdiv = $('graphdiv'); /** * Track the palettes. */ var gpalettes = new Array(); var spalette = 'control'; var bpalette = null; /** * Get and display an application composite. */ function getapp(name, g) { if (isNull(name)) return false; workingstatus(true); showstatus('Loading'); return composites.get(name, function(doc) { // Stop now if we didn't get a composite if (doc == null) { errorstatus('Couldn\'t get the app info'); workingstatus(false); return false; } // Get the composite from the ATOM entry var composentry = car(atom.readATOMEntry(mklist(doc))); var content = namedElementChild("'content", composentry); composite = isNull(content)? mklist() : elementChildren(content); if (isNull(composite)) { // Create a default empty composite if necessary var x = '<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912" ' + 'targetNamespace="http://app" name="app"></composite>'; composite = readXML(mklist(x)); } // Display the composite graph.edit(name, composite, graph.composite(composite, graph.mkpath().move(graph.palcx,0), false, g), g); // Track the saved composite XML savedcomposxml = car(writeXML(composite, false)); // Enable author to edit the composite author = elementValue(namedElementChild("'author", composentry)); editable = author == username; cadd.disabled = !editable; if (editable) onlinestatus(); else showstatus('Read only'); workingstatus(false); return true; }); } /** * Display a palette. Get it from the server if needed. */ function displaypalette(name, g, palette, gpalettes) { if (isNull(name)) return; if (isNull(gpalettes[name])) { // Get the palette from the server palettes.get(name, function(doc) { var entry = car(atom.readATOMEntry(mklist(doc))); var content = namedElementChild("'content", entry); var compos = isNull(content)? mklist() : elementChildren(content); gpalettes[name] = graph.composite(compos, graph.mkpath().move(2580,0), true, g); graph.display(gpalettes[name], g); }); return true; } graph.display(gpalettes[name], g); return true; } /** * Install a palette, including a button to select the palette, and * the palette content. */ function installpalette(name, pos, g, bg, palette, gpalettes) { var b = graph.mkbutton(name, pos); graph.display(mklist(b), g); b.onclick = function(e) { // Swap the selected palette graph.paletteselect(bpalette, false); displaypalette(spalette, bg, palette, gpalettes); bpalette = b; graph.paletteselect(b, true); spalette = name; return displaypalette(spalette, g, palette, gpalettes); }; if (name != spalette) { // Will get the palette from the server later if needed gpalettes[name] = null; return true; } // Display the selected palette graph.paletteselect(b, true); displaypalette(name, g, palette, gpalettes); return b; } /** * Save the current composite. */ function save(savexml) { workingstatus(true); showstatus('Saving'); savedcomposxml = savexml; var entry = '<?xml version="1.0" encoding="UTF-8"?>\n' + '<entry xmlns="http://www.w3.org/2005/Atom">' + '<title type="text">' + appname + '</title><id>' + appname + '</id><author><email>' + author + '</email></author>' + '<content type="application/xml">' + savedcomposxml + '</content></entry>'; composites.put(appname, entry, function(e) { if (e) { showstatus('Local copy'); workingstatus(false); return false; } showstatus('Saved'); workingstatus(false); return false; }); return true; } /** * Handle a composite change event. */ function oncomposchange(prop) { if (!editable) return false; var newxml = car(writeXML(composite, false)); if (savedcomposxml == newxml) return false; showstatus('Modified'); // Save property changes right away if (prop) return save(newxml); // Autosave other changes after 1 second showstatus('Modified'); ui.delay(function autosave() { if (savedcomposxml == newxml) { showstatus('Saved'); return false; } return save(newxml); }, 1000); return true; } /** * Return the link to a component. */ function complink(appname, cname) { if (cname == '' || isNull(cname)) return ''; var protocol = location.protocol; var host = location.hostname; var port = ':' + location.port; if (port == ':80' || port == ':443' || port == ':') port = ''; var link = protocol + '//' + host + port + '/' + appname + '/c/' + cname; return link; } /** * Handle a component select event. */ function oncompselect(gsel) { if (gsel == gcomp) return true; gcomp = gsel; cdelete.disabled = isNull(gsel) || !editable; ccopy.disabled = isNull(gsel) || !editable; cplay.disabled = isNull(gsel); return true; } /** * Show the result data of a component. */ function showdata(gcomp) { if (!gvisible) return true; if (isNull(gcomp)) return true; cvalue.value = complink(appname, gcomp.id); cplay.value = '<'; gvisible = false; pdiv.innerHTML = ''; pdiv.style.display = 'block'; // Get the component result data var comp = sca.component(gcomp.id, appname); comp.get('', function(doc) { function displaydata(t, w) { pdiv.style.width = w; pdiv.innerHTML = t; return true; } // Stop now if we didn't get the doc if (doc == null) return displaydata('No content', '2500px'); // Format data table if (json.isJSON(mklist(doc))) return displaydata(ui.datatable(json.readJSON(mklist(doc))), '2500px'); if (atom.isATOMEntry(mklist(doc))) return displaydata(ui.datatable(atom.readATOMEntry(mklist(doc))), '2500px'); if (atom.isATOMFeed(mklist(doc))) return display(ui.datatable(atom.readATOMFeed(mklist(doc))), '2500px'); // Insert the doc as is in an iframe var t = '<table class="datatable" style="width: 100%;">' + '<tr><td class="datatdltop">' + 'value' + '</td>' + '<td class="datatdr">' + '<iframe style="width: 100%; height: 5000px;" scrolling="no" frameborder="0" src="' + clink + '"/>' + '</td></tr></table>' return displaydata(t, '100%'); }); ui.delay(function hidegraphdiv() { graphdiv.style.display = 'none' }); return true; } /** * Show the composition graph. */ function showgraph(gcomp) { if (gvisible) return true; cplay.value = '>'; graphdiv.style.display = 'block' gvisible = true; graph.compselect(gcomp, true, atitle, cvalue, ccopy, cdelete); ui.delay(function hideplaydiv() { pdiv.style.display = 'none'; pdiv.innerHTML = ''; }); return true; } /** * Handle play component button event. */ cplay.onclick = function() { if (gcomp == null) return false; if (!gvisible) return showgraph(gcomp); return showdata(gcomp); } /** * Create editor graph area. */ graph.mkedit(graphdiv, graph.mkpath().move(-2500,0), atitle, cvalue, cadd, ccopy, cdelete, oncomposchange, oncompselect); /** * Install the palettes. */ var bg = graph.mkgroup(graph.mkpath()); var pos = graph.mkpath().move(0, 0); bpalette = installpalette('control', pos.rmove(5,2), graphdiv, bg, spalette, gpalettes); installpalette('values', pos.rmove(0,28), graphdiv, bg, spalette, gpalettes); installpalette('lists', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('transform', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('text', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('http', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('animation', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('talk', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('social', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('search', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('database', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('logic', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('math', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); installpalette('python', pos.rmove(0, 28), graphdiv, bg, spalette, gpalettes); /** * Get and display the current app. */ getapp(appname, graphdiv); })(); </script> </div>

hosting/server/htdocs/graph/index.html (1,790 lines of code) (raw):