Merge pull request #434 from anna2130/palette-multi-line-nodes

Node expands for multi-line node names

public/red/ui/palette.js

@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  **/
- 
+
 RED.palette = (function() {
 
     var exclusion = ['config','unknown','deprecated'];
     var core = ['input', 'output', 'function', 'social', 'storage', 'analysis', 'advanced'];
-    
+
     function createCategoryContainer(category){
         var escapedCategory = category.replace(" ","_");
         $("#palette-container").append('<div class="palette-category">'+
@@ -29,71 +29,103 @@ RED.palette = (function() {
             '<div id="palette-'+category+'-function"></div>'+
             '</div>'+
             '</div>');
-        
+
         $("#header-"+category).on('click', function(e) {
             $(this).next().slideToggle();
             $(this).children("i").toggleClass("expanded");
         });
-
     }
-    
+
     core.forEach(createCategoryContainer);
-    
+
     function addNodeType(nt,def) {
-        
+
         var nodeTypeId = nt.replace(" ","_");
-        
+
         if ($("#palette_node_"+nodeTypeId).length) {
             return;
         }
-        
+
         if (exclusion.indexOf(def.category)===-1) {
-            
+
             var category = def.category.replace(" ","_");
             var rootCategory = category.split("-")[0];
-            
+
             var d = document.createElement("div");
             d.id = "palette_node_"+nodeTypeId;
             d.type = nt;
-            
+
+            // calculate width of label text
+            $.fn.textWidth = function(text, font) {
+                if (!$.fn.textWidth.fakeEl) {
+                    $.fn.textWidth.fakeEl = $('<span>').hide().appendTo(document.body);
+                }
+                $.fn.textWidth.fakeEl.text(text || this.val() || this.text()).css('font', font || this.css('font'));
+                return $.fn.textWidth.fakeEl.width();
+            };
+
             var label = /^(.*?)([ -]in|[ -]out)?$/.exec(nt)[1];
-            
+            var pixels = $.fn.textWidth(label, '13px helvetica');
-            d.innerHTML = '<div class="palette_label">'+label+"</div>";
+            var nodeWidth = 90;
+            var labelWidth = nodeWidth - 10;
+            var numLines = Math.ceil(pixels / nodeWidth);
+            var multiLine = numLines > 1;
+
+            // styles matching with style.css
+            var nodeHeight = 25;
+            var lineHeight = 16;
+            var portHeight = 10;
+            var multiLineNodeHeight = lineHeight * numLines + (nodeHeight - lineHeight);
+
+            d.innerHTML = '<div class="palette_label"'+
+                (multiLine ? 'style="line-height: '+
+                    lineHeight + 'px; margin-top: 5px"' : '')+
+                '>'+label+"</div>";
             d.className="palette_node";
             if (def.icon) {
                 d.style.backgroundImage = "url(icons/"+def.icon+")";
+                if (multiLine) {
+                    d.style.backgroundSize = "18px 27px";
+                }
                 if (def.align == "right") {
                     d.style.backgroundPosition = "95% 50%";
                 } else if (def.inputs > 0) {
                     d.style.backgroundPosition = "10% 50%";
                 }
             }
-            
+
             d.style.backgroundColor = def.color;
-            
+            d.style.height = multiLineNodeHeight + "px";
+
             if (def.outputs > 0) {
                 var portOut = document.createElement("div");
                 portOut.className = "palette_port palette_port_output";
+                if (multiLine) {
+                    portOut.style.top = ((multiLineNodeHeight - portHeight) / 2) + "px";
+                }
                 d.appendChild(portOut);
             }
-            
+
             if (def.inputs > 0) {
                 var portIn = document.createElement("div");
                 portIn.className = "palette_port";
+                if (multiLine) {
+                    portIn.style.top = ((multiLineNodeHeight - portHeight) / 2) + "px";
+                }
                 d.appendChild(portIn);
             }
-            
+
             if ($("#palette-base-category-"+rootCategory).length === 0) {
                 createCategoryContainer(rootCategory);
             }
-            
+
-            if ($("#palette-"+category).length === 0) {          
+            if ($("#palette-"+category).length === 0) {
-                $("#palette-base-category-"+rootCategory).append('<div id="palette-'+category+'"></div>');            
+                $("#palette-base-category-"+rootCategory).append('<div id="palette-'+category+'"></div>');
             }
-            
+
             $("#palette-"+category).append(d);
-            d.onmousedown = function(e) { e.preventDefault(); }
+            d.onmousedown = function(e) { e.preventDefault(); };
-            
+
             $(d).popover({
                 title:d.type,
                 placement:"right",
@@ -101,7 +133,7 @@ RED.palette = (function() {
                 delay: { show: 750, hide: 50 },
                 html: true,
                 container:'body',
-                content: $(($("script[data-help-name|='"+nt+"']").html()||"<p>no information available</p>").trim())[0] 
+                content: $(($("script[data-help-name|='"+nt+"']").html()||"<p>no information available</p>").trim())[0]
             });
             $(d).click(function() {
                 var help = '<div class="node-help">'+($("script[data-help-name|='"+d.type+"']").html()||"")+"</div>";
@@ -115,7 +147,7 @@ RED.palette = (function() {
             });
         }
     }
-    
+
     function removeNodeType(nt) {
         var nodeTypeId = nt.replace(" ","_");
         $("#palette_node_"+nodeTypeId).remove();
@@ -124,12 +156,12 @@ RED.palette = (function() {
         var nodeTypeId = nt.replace(" ","_");
         $("#palette_node_"+nodeTypeId).hide();
     }
-    
+
     function showNodeType(nt) {
         var nodeTypeId = nt.replace(" ","_");
         $("#palette_node_"+nodeTypeId).show();
     }
-    
+
     function filterChange() {
         var val = $("#palette-search-input").val();
         if (val === "") {
@@ -137,7 +169,7 @@ RED.palette = (function() {
         } else {
             $("#palette-search-clear").show();
         }
-        
+
         var re = new RegExp(val);
         $(".palette_node").each(function(i,el) {
             if (val === "" || re.test(el.id)) {
@@ -147,21 +179,21 @@ RED.palette = (function() {
             }
         });
     }
-    
+
     $("#palette-search-input").focus(function(e) {
         RED.keyboard.disable();
     });
     $("#palette-search-input").blur(function(e) {
         RED.keyboard.enable();
     });
-    
+
     $("#palette-search-clear").on("click",function(e) {
         e.preventDefault();
         $("#palette-search-input").val("");
         filterChange();
         $("#palette-search-input").focus();
     });
-    
+
     $("#palette-search-input").val("");
     $("#palette-search-input").on("keyup",function() {
         filterChange();
@@ -172,7 +204,7 @@ RED.palette = (function() {
             $("#palette-search-input").blur();
         });
     });
-    
+
     return {
         add:addNodeType,
         remove:removeNodeType,