add block icon

frontend/app/block/block.less

@@ -12,6 +12,10 @@
     min-height: 0;
     position: relative;
 
+    .block-frame-icon {
+        margin-right: 0.5em;
+    }
+
     .block-content {
         display: flex;
         flex-grow: 1;

frontend/app/block/block.tsx

@@ -25,17 +25,20 @@ interface BlockProps {
     onClose?: () => void;
     dragHandleRef?: React.RefObject<HTMLDivElement>;
 }
-function processTextString(iconString: string): React.ReactNode {
-    if (iconString == null) {
+
+const colorRegex = /^((#[0-9a-f]{6,8})|([a-z]+))$/;
+
+function processTitleString(titleString: string): React.ReactNode[] {
+    if (titleString == null) {
         return null;
     }
     const tagRegex = /<(\/)?([a-z]+)(?::([#a-z0-9-]+))?>/g;
     let lastIdx = 0;
     let match;
     let partsStack = [[]];
-    while ((match = tagRegex.exec(iconString)) != null) {
+    while ((match = tagRegex.exec(titleString)) != null) {
         const lastPart = partsStack[partsStack.length - 1];
-        const before = iconString.substring(lastIdx, match.index);
+        const before = titleString.substring(lastIdx, match.index);
         lastPart.push(before);
         lastIdx = match.index + match[0].length;
         const [_, isClosing, tagName, tagParam] = match;
@@ -51,9 +54,6 @@ function processTextString(iconString: string): React.ReactNode {
             continue;
         }
         if (tagName == "c" || tagName == "color") {
-            if (tagParam == null) {
-                continue;
-            }
             if (isClosing) {
                 if (partsStack.length <= 1) {
                     continue;
@@ -61,6 +61,12 @@ function processTextString(iconString: string): React.ReactNode {
                 partsStack.pop();
                 continue;
             }
+            if (tagParam == null) {
+                continue;
+            }
+            if (!tagParam.match(colorRegex)) {
+                continue;
+            }
             let children = [];
             const rtag = React.createElement("span", { key: match.index, style: { color: tagParam } }, children);
             lastPart.push(rtag);
@@ -82,7 +88,7 @@ function processTextString(iconString: string): React.ReactNode {
             continue;
         }
     }
-    partsStack[partsStack.length - 1].push(iconString.substring(lastIdx));
+    partsStack[partsStack.length - 1].push(titleString.substring(lastIdx));
     return partsStack[0];
 }
 
@@ -90,15 +96,34 @@ function getBlockHeaderText(blockData: Block): React.ReactNode {
     if (!blockData) {
         return "no block data";
     }
+    let blockIcon: React.ReactNode = null;
+    if (!util.isBlank(blockData?.meta?.["icon"])) {
+        const iconName = blockData.meta.icon;
+        let iconColor = blockData.meta["icon:color"];
+        if (iconColor && !iconColor.match(colorRegex)) {
+            iconColor = null;
+        }
+        let iconStyle = null;
+        if (!util.isBlank(iconColor)) {
+            iconStyle = { color: iconColor };
+        }
+        if (iconName.match(/^[a-z0-9-]+$/)) {
+            blockIcon = <i style={iconStyle} className={`block-frame-icon fa fa-solid fa-${blockData.meta.icon}`} />;
+        }
+    }
     if (!util.isBlank(blockData?.meta?.title)) {
         try {
-            return processTextString(blockData.meta.title);
+            const rtn = processTitleString(blockData.meta.title) ?? [];
+            if (blockIcon) {
+                rtn.unshift(blockIcon);
+            }
+            return rtn;
         } catch (e) {
             console.error("error processing title", blockData.meta.title, e);
-            return blockData.meta.title;
+            return [blockIcon, blockData.meta.title];
         }
     }
-    return `${blockData?.view} [${blockData.oid.substring(0, 8)}]`;
+    return [blockIcon, `${blockData?.view} [${blockData.oid.substring(0, 8)}]`];
 }
 
 interface FramelessBlockHeaderProps {
@@ -276,12 +301,18 @@ const BlockFrame = (props: BlockFrameProps) => {
     if (!blockId || !blockData) {
         return null;
     }
+    let FrameElem = BlockFrame_Tech;
     // if 0 or 1 blocks, use frameless, otherwise use tech
     const numBlocks = tabData?.blockids?.length ?? 0;
     if (numBlocks <= 1) {
-        return <BlockFrame_Frameless {...props} />;
+        FrameElem = BlockFrame_Frameless;
     }
-    return <BlockFrame_Tech {...props} />;
+    if (blockData?.meta?.["frame"] === "tech") {
+        FrameElem = BlockFrame_Tech;
+    } else if (blockData?.meta?.["frame"] === "frameless") {
+        FrameElem = BlockFrame_Frameless;
+    }
+    return <FrameElem {...props} />;
 };
 
 const Block = ({ blockId, onClose, dragHandleRef }: BlockProps) => {

frontend/app/workspace/workspace.tsx

@@ -12,11 +12,13 @@ import { CenteredDiv } from "../element/quickelems";
 
 import "./workspace.less";
 
+const iconRegex = /^[a-z0-9-]+$/;
+
 function Widgets() {
     const settingsConfig = jotai.useAtomValue(atoms.settingsConfigAtom);
     const newWidgetModalVisible = React.useState(false);
     async function clickTerminal() {
-        const termBlockDef = {
+        const termBlockDef: BlockDef = {
             controller: "shell",
             view: "term",
         };
@@ -44,6 +46,20 @@ function Widgets() {
         await services.FileService.RemoveWidget(idx);
     }
 
+    function isIconValid(icon: string): boolean {
+        if (util.isBlank(icon)) {
+            return false;
+        }
+        return icon.match(iconRegex) != null;
+    }
+
+    function getIconClass(icon: string): string {
+        if (!isIconValid(icon)) {
+            return "fa fa-solid fa-question fa-fw";
+        }
+        return `fa fa-solid fa-${icon} fa-fw`;
+    }
+
     return (
         <div className="workspace-widgets">
             <div className="widget" onClick={() => clickTerminal()}>
@@ -54,20 +70,19 @@ function Widgets() {
             </div>
             <div className="widget" onClick={() => clickHome()}>
                 <div className="widget-icon">
-                    <i className="fa-sharp fa-solid fa-house"></i>
+                    <i className="fa-sharp fa-solid fa-home"></i>
                 </div>
                 <div className="widget-label">home</div>
             </div>
             {settingsConfig.widgets.map((data, idx) => (
                 <div
                     className="widget"
-                    style={{ color: data.color }}
                     onClick={() => handleWidgetSelect(data.blockdef)}
                     key={`widget-${idx}`}
                     title={data.description || data.label}
                 >
-                    <div className="widget-icon">
-                        <i className={data.icon}></i>
+                    <div className="widget-icon" style={{ color: data.color }}>
+                        <i className={getIconClass(data.icon)}></i>
                     </div>
                     {!util.isBlank(data.label) ? <div className="widget-label">{data.label}</div> : null}
                 </div>

pkg/blockcontroller/blockcontroller.go

@@ -54,6 +54,7 @@ type RunCmdFnType = func(ctx context.Context, cmd wshutil.BlockCommand, cmdCtx w
 
 type BlockController struct {
 	Lock            *sync.Mutex
+	ControllerType  string
 	TabId           string
 	BlockId         string
 	BlockDef        *wstore.BlockDef
@@ -309,6 +310,7 @@ func StartBlockController(ctx context.Context, tabId string, blockId string, run
 	}
 	bc := &BlockController{
 		Lock:           &sync.Mutex{},
+		ControllerType: blockData.Controller,
 		TabId:          tabId,
 		BlockId:        blockId,
 		Status:         "init",