feat: enhance control panel UI and resize functionality

Panel UI improvements:
- Replace heading elements (h1-h6) with styled divs to avoid navigation interference
- Change ContentsControl position from northwest to west for better accessibility

Panel collapse/expand enhancements:
- Fix panel dragging to prevent unexpected positioning jumps
- Keep panel width and upper-left position when collapsing to header-only mode
- Complete height reduction when collapsed (no minimal size maintained)
- Toggle resize handle visibility based on panel state

Resize handle improvements:
- Change resize symbol from arrow to clean dot (●) in bottom-right corner
- Remove background circle, show transparent dot only
- Fix resize direction to properly follow mouse movement from bottom-right
- Set dynamic minimum size constraints (header height + padding)
- Allow arbitrary panel sizing with proper bounds checking
- Reset panel size to defaults when closed/collapsed

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

capabilities/testdrive-jsui/js/controls/control-base.js

@@ -334,6 +334,17 @@ class ControlBase {
                     this.element.style.transform = this.originalPosition.transform || '';
                 }
 
+                // Reset panel size to defaults
+                panel.style.width = '';
+                panel.style.height = '';
+                panel.style.minWidth = '300px';
+                panel.style.minHeight = '200px';
+
+                // Reset internal size tracking
+                this.size.width = 300;
+                this.size.height = 200;
+                this.storedWidth = null;
+
                 // Remove resize handle
                 this.removeResizeHandle();
             }
@@ -354,9 +365,52 @@ class ControlBase {
             }
 
             const content = this.element?.querySelector('.control-content');
-            if (content) {
+            const panel = this.element?.querySelector('.control-panel-expanded');
+
+            if (content && panel) {
                 this.isHeaderOnly = !this.isHeaderOnly;
-                content.style.display = this.isHeaderOnly ? 'none' : 'block';
+                const resizeHandle = this.element?.querySelector('.control-resize-handle');
+
+                if (this.isHeaderOnly) {
+                    // Store current width before collapsing
+                    const currentWidth = panel.offsetWidth;
+                    this.storedWidth = currentWidth;
+
+                    // Hide content and shrink panel height only
+                    content.style.display = 'none';
+                    panel.style.minHeight = 'auto';
+                    panel.style.height = 'auto';
+
+                    // Keep the same width and position
+                    panel.style.width = `${currentWidth}px`;
+                    panel.style.minWidth = `${currentWidth}px`;
+
+                    // Hide resize handle in header-only mode
+                    if (resizeHandle) {
+                        resizeHandle.style.display = 'none';
+                    }
+                } else {
+                    // Show content and restore full panel size
+                    content.style.display = 'block';
+                    panel.style.minHeight = '200px';
+
+                    // Restore stored width or use default
+                    const widthToRestore = this.storedWidth || 300;
+                    panel.style.minWidth = `${widthToRestore}px`;
+
+                    // Restore height if it was auto
+                    if (!panel.style.height || panel.style.height === 'auto') {
+                        panel.style.height = '200px';
+                    }
+                    if (!panel.style.width || panel.style.width === `${widthToRestore}px`) {
+                        panel.style.width = `${widthToRestore}px`;
+                    }
+
+                    // Show resize handle when fully expanded
+                    if (resizeHandle) {
+                        resizeHandle.style.display = 'flex';
+                    }
+                }
             }
 
             return this.isHeaderOnly;
@@ -378,11 +432,24 @@ class ControlBase {
             y: event.clientY - rect.top
         };
 
+        // Store current computed position before clearing styles
+        const computedStyle = window.getComputedStyle(this.element);
+        const currentLeft = rect.left;
+        const currentTop = rect.top;
+
         // Clear any positioning styles that interfere with dragging
         this.element.style.right = '';
         this.element.style.bottom = '';
         this.element.style.transform = '';
 
+        // Set the element to its current visual position using left/top
+        this.element.style.left = `${currentLeft}px`;
+        this.element.style.top = `${currentTop}px`;
+
+        // Update internal position tracking
+        this.position.x = currentLeft;
+        this.position.y = currentTop;
+
         // Add global mouse move and up handlers
         const handleMouseMove = (e) => this.handleDrag(e);
         const handleMouseUp = () => this.stopDrag();
@@ -441,21 +508,19 @@ class ControlBase {
 
         const resizeHandle = document.createElement('div');
         resizeHandle.className = 'control-resize-handle';
-        resizeHandle.innerHTML = '↙'; // Bottom-left resize indicator
+        resizeHandle.innerHTML = '●'; // Dot resize indicator
         resizeHandle.style.cssText = `
             position: absolute;
-            bottom: 0;
-            left: 0;
-            width: 20px;
-            height: 20px;
-            cursor: nw-resize;
-            font-size: 16px;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            background: rgba(0,0,0,0.1);
-            border-radius: 0 8px 0 0;
+            bottom: 4px;
+            right: 4px;
+            width: 8px;
+            height: 8px;
+            cursor: se-resize;
+            font-size: 8px;
+            line-height: 1;
             user-select: none;
+            color: #999;
+            background: transparent;
         `;
 
         // Add to the expanded panel
@@ -510,7 +575,7 @@ class ControlBase {
     }
 
     /**
-     * Handle resize movement (bottom-left corner resize)
+     * Handle resize movement (bottom-right corner resize)
      */
     handleResize(event) {
         if (!this.isResizing || !this.element) return;
@@ -518,13 +583,18 @@ class ControlBase {
         const panel = this.element.querySelector('.control-panel-expanded');
         if (!panel) return;
 
-        // Calculate size change based on mouse movement
-        const deltaX = this.resizeStart.mouseX - event.clientX; // Inverted for left edge
-        const deltaY = event.clientY - this.resizeStart.mouseY;
+        // Calculate size change based on mouse movement (bottom-right corner)
+        const deltaX = event.clientX - this.resizeStart.mouseX; // Right direction
+        const deltaY = event.clientY - this.resizeStart.mouseY; // Down direction
 
-        // Calculate new dimensions (minimum size constraints)
-        const newWidth = Math.max(200, this.resizeStart.width + deltaX);
-        const newHeight = Math.max(150, this.resizeStart.height + deltaY);
+        // Get minimum size (collapsed header size or default minimum)
+        const headerHeight = this.element.querySelector('.control-header')?.offsetHeight || 40;
+        const minWidth = 200;
+        const minHeight = headerHeight + 20; // Header plus small padding
+
+        // Calculate new dimensions with minimum constraints
+        const newWidth = Math.max(minWidth, this.resizeStart.width + deltaX);
+        const newHeight = Math.max(minHeight, this.resizeStart.height + deltaY);
 
         // Apply new size to the panel
         panel.style.width = `${newWidth}px`;

capabilities/testdrive-jsui/js/controls/debug-control.js

@@ -432,7 +432,7 @@ class DebugControl extends ControlBase {
             if (content) {
                 content.innerHTML = `
                     <div style="padding: 1rem; font-size: 0.8rem;">
-                        <h4 style="margin-top: 0; margin-bottom: 1rem;">Debug Information</h4>
+                        <div style="margin-top: 0; margin-bottom: 1rem; font-weight: 600; font-size: 1.1em; color: #333;">Debug Information</div>
 
                         ${this.generateSystemInfoHTML()}
                         ${this.generatePerformanceHTML()}

capabilities/testdrive-jsui/js/controls/edit-control.js

@@ -68,11 +68,11 @@ class EditControl extends ControlBase {
         return this.safeOperation(() => {
             return `
                 <div style="padding: 1rem; font-size: 0.8rem;">
-                    <h4 style="margin-top: 0; margin-bottom: 1rem;">Edit Tools</h4>
+                    <div style="margin-top: 0; margin-bottom: 1rem; font-weight: 600; font-size: 1.1em; color: #333;">Edit Tools</div>
 
                     <!-- Document Actions -->
                     <div class="action-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Document Actions</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Document Actions</div>
 
                         <button onclick="this.closest('.edit-control').editControl.printDocument()"
                                 style="width: 100%; padding: 0.5rem; margin-bottom: 0.3rem; background: #28a745; color: white; border: none; border-radius: 3px; cursor: pointer; font-size: 0.8rem;">
@@ -97,7 +97,7 @@ class EditControl extends ControlBase {
 
                     <!-- Navigation Tools -->
                     <div class="navigation-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Navigation</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Navigation</div>
 
                         <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 0.3rem;">
                             <button onclick="this.closest('.edit-control').editControl.scrollToTop()"
@@ -119,7 +119,7 @@ class EditControl extends ControlBase {
 
                     <!-- Text Tools -->
                     <div class="text-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Text Tools</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Text Tools</div>
 
                         <button onclick="this.closest('.edit-control').editControl.showFindReplace()"
                                 style="width: 100%; padding: 0.4rem; margin-bottom: 0.3rem; background: #ffc107; color: #000; border: none; border-radius: 3px; cursor: pointer; font-size: 0.7rem;">
@@ -146,7 +146,7 @@ class EditControl extends ControlBase {
 
                     <!-- Markdown Tools -->
                     <div class="markdown-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Markdown Tools</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Markdown Tools</div>
 
                         <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 0.3rem;">
                             <button onclick="this.closest('.edit-control').editControl.insertMarkdown('**', '**', 'Bold text')"
@@ -240,7 +240,7 @@ class EditControl extends ControlBase {
             `;
 
             exportMenu.innerHTML = `
-                <h4 style="margin-top: 0;">Export Document</h4>
+                <div style="margin-top: 0; font-weight: 600; font-size: 1.1em; color: #333; margin-bottom: 1rem;">Export Document</div>
                 <button onclick="this.parentElement.exportAsHTML()" style="display: block; width: 100%; padding: 0.5rem; margin-bottom: 0.3rem; background: #28a745; color: white; border: none; border-radius: 3px; cursor: pointer;">
                     Export as HTML
                 </button>

capabilities/testdrive-jsui/js/controls/status-control.js

@@ -132,7 +132,7 @@ class StatusControl extends ControlBase {
 
             return `
                 <div style="padding: 1rem; font-size: 0.8rem;">
-                    <h4 style="margin-top: 0; margin-bottom: 1rem;">Document Statistics</h4>
+                    <div style="margin-top: 0; margin-bottom: 1rem; font-weight: 600; font-size: 1.1em; color: #333;">Document Statistics</div>
 
                     <div class="stats-grid" style="display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-bottom: 1rem;">
                         <div class="stat-item">
@@ -161,7 +161,7 @@ class StatusControl extends ControlBase {
                     </div>
 
                     <div class="structure-stats" style="border-top: 1px solid #eee; padding-top: 0.5rem; margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em;">Document Structure</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; font-weight: 600; color: #555;">Document Structure</div>
 
                         <div style="display: flex; justify-content: space-between; margin-bottom: 0.3rem;">
                             <span>Paragraphs:</span>

markitect/static/js/main-updated.js

@@ -82,13 +82,13 @@ const MarkitectMain = {
     initializeControlPanels: function() {
         console.log('🎛️ Initializing enhanced control panels with compass positioning...');
 
-        // ContentsControl (Northwest)
+        // ContentsControl (West)
         if (typeof ContentsControl !== 'undefined') {
             this.contentsControl = new ContentsControl();
-            this.contentsControl.config.position = 'nw';
+            this.contentsControl.config.position = 'w';
             this.contentsControl.show();
             window.contentsControl = this.contentsControl;
-            console.log('✅ ContentsControl initialized (Northwest) with enhanced ControlBase');
+            console.log('✅ ContentsControl initialized (West) with enhanced ControlBase');
         }
 
         // StatusControl (East)

testdrive-jsui/static/js/controls/control-base.js

@@ -334,6 +334,17 @@ class ControlBase {
                     this.element.style.transform = this.originalPosition.transform || '';
                 }
 
+                // Reset panel size to defaults
+                panel.style.width = '';
+                panel.style.height = '';
+                panel.style.minWidth = '300px';
+                panel.style.minHeight = '200px';
+
+                // Reset internal size tracking
+                this.size.width = 300;
+                this.size.height = 200;
+                this.storedWidth = null;
+
                 // Remove resize handle
                 this.removeResizeHandle();
             }
@@ -354,9 +365,52 @@ class ControlBase {
             }
 
             const content = this.element?.querySelector('.control-content');
-            if (content) {
+            const panel = this.element?.querySelector('.control-panel-expanded');
+
+            if (content && panel) {
                 this.isHeaderOnly = !this.isHeaderOnly;
-                content.style.display = this.isHeaderOnly ? 'none' : 'block';
+                const resizeHandle = this.element?.querySelector('.control-resize-handle');
+
+                if (this.isHeaderOnly) {
+                    // Store current width before collapsing
+                    const currentWidth = panel.offsetWidth;
+                    this.storedWidth = currentWidth;
+
+                    // Hide content and shrink panel height only
+                    content.style.display = 'none';
+                    panel.style.minHeight = 'auto';
+                    panel.style.height = 'auto';
+
+                    // Keep the same width and position
+                    panel.style.width = `${currentWidth}px`;
+                    panel.style.minWidth = `${currentWidth}px`;
+
+                    // Hide resize handle in header-only mode
+                    if (resizeHandle) {
+                        resizeHandle.style.display = 'none';
+                    }
+                } else {
+                    // Show content and restore full panel size
+                    content.style.display = 'block';
+                    panel.style.minHeight = '200px';
+
+                    // Restore stored width or use default
+                    const widthToRestore = this.storedWidth || 300;
+                    panel.style.minWidth = `${widthToRestore}px`;
+
+                    // Restore height if it was auto
+                    if (!panel.style.height || panel.style.height === 'auto') {
+                        panel.style.height = '200px';
+                    }
+                    if (!panel.style.width || panel.style.width === `${widthToRestore}px`) {
+                        panel.style.width = `${widthToRestore}px`;
+                    }
+
+                    // Show resize handle when fully expanded
+                    if (resizeHandle) {
+                        resizeHandle.style.display = 'flex';
+                    }
+                }
             }
 
             return this.isHeaderOnly;
@@ -378,11 +432,24 @@ class ControlBase {
             y: event.clientY - rect.top
         };
 
+        // Store current computed position before clearing styles
+        const computedStyle = window.getComputedStyle(this.element);
+        const currentLeft = rect.left;
+        const currentTop = rect.top;
+
         // Clear any positioning styles that interfere with dragging
         this.element.style.right = '';
         this.element.style.bottom = '';
         this.element.style.transform = '';
 
+        // Set the element to its current visual position using left/top
+        this.element.style.left = `${currentLeft}px`;
+        this.element.style.top = `${currentTop}px`;
+
+        // Update internal position tracking
+        this.position.x = currentLeft;
+        this.position.y = currentTop;
+
         // Add global mouse move and up handlers
         const handleMouseMove = (e) => this.handleDrag(e);
         const handleMouseUp = () => this.stopDrag();
@@ -441,21 +508,19 @@ class ControlBase {
 
         const resizeHandle = document.createElement('div');
         resizeHandle.className = 'control-resize-handle';
-        resizeHandle.innerHTML = '↙'; // Bottom-left resize indicator
+        resizeHandle.innerHTML = '●'; // Dot resize indicator
         resizeHandle.style.cssText = `
             position: absolute;
-            bottom: 0;
-            left: 0;
-            width: 20px;
-            height: 20px;
-            cursor: nw-resize;
-            font-size: 16px;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            background: rgba(0,0,0,0.1);
-            border-radius: 0 8px 0 0;
+            bottom: 4px;
+            right: 4px;
+            width: 8px;
+            height: 8px;
+            cursor: se-resize;
+            font-size: 8px;
+            line-height: 1;
             user-select: none;
+            color: #999;
+            background: transparent;
         `;
 
         // Add to the expanded panel
@@ -510,7 +575,7 @@ class ControlBase {
     }
 
     /**
-     * Handle resize movement (bottom-left corner resize)
+     * Handle resize movement (bottom-right corner resize)
      */
     handleResize(event) {
         if (!this.isResizing || !this.element) return;
@@ -518,13 +583,18 @@ class ControlBase {
         const panel = this.element.querySelector('.control-panel-expanded');
         if (!panel) return;
 
-        // Calculate size change based on mouse movement
-        const deltaX = this.resizeStart.mouseX - event.clientX; // Inverted for left edge
-        const deltaY = event.clientY - this.resizeStart.mouseY;
+        // Calculate size change based on mouse movement (bottom-right corner)
+        const deltaX = event.clientX - this.resizeStart.mouseX; // Right direction
+        const deltaY = event.clientY - this.resizeStart.mouseY; // Down direction
 
-        // Calculate new dimensions (minimum size constraints)
-        const newWidth = Math.max(200, this.resizeStart.width + deltaX);
-        const newHeight = Math.max(150, this.resizeStart.height + deltaY);
+        // Get minimum size (collapsed header size or default minimum)
+        const headerHeight = this.element.querySelector('.control-header')?.offsetHeight || 40;
+        const minWidth = 200;
+        const minHeight = headerHeight + 20; // Header plus small padding
+
+        // Calculate new dimensions with minimum constraints
+        const newWidth = Math.max(minWidth, this.resizeStart.width + deltaX);
+        const newHeight = Math.max(minHeight, this.resizeStart.height + deltaY);
 
         // Apply new size to the panel
         panel.style.width = `${newWidth}px`;

testdrive-jsui/static/js/controls/debug-control.js

@@ -432,7 +432,7 @@ class DebugControl extends ControlBase {
             if (content) {
                 content.innerHTML = `
                     <div style="padding: 1rem; font-size: 0.8rem;">
-                        <h4 style="margin-top: 0; margin-bottom: 1rem;">Debug Information</h4>
+                        <div style="margin-top: 0; margin-bottom: 1rem; font-weight: 600; font-size: 1.1em; color: #333;">Debug Information</div>
 
                         ${this.generateSystemInfoHTML()}
                         ${this.generatePerformanceHTML()}

testdrive-jsui/static/js/controls/edit-control.js

@@ -68,11 +68,11 @@ class EditControl extends ControlBase {
         return this.safeOperation(() => {
             return `
                 <div style="padding: 1rem; font-size: 0.8rem;">
-                    <h4 style="margin-top: 0; margin-bottom: 1rem;">Edit Tools</h4>
+                    <div style="margin-top: 0; margin-bottom: 1rem; font-weight: 600; font-size: 1.1em; color: #333;">Edit Tools</div>
 
                     <!-- Document Actions -->
                     <div class="action-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Document Actions</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Document Actions</div>
 
                         <button onclick="this.closest('.edit-control').editControl.printDocument()"
                                 style="width: 100%; padding: 0.5rem; margin-bottom: 0.3rem; background: #28a745; color: white; border: none; border-radius: 3px; cursor: pointer; font-size: 0.8rem;">
@@ -97,7 +97,7 @@ class EditControl extends ControlBase {
 
                     <!-- Navigation Tools -->
                     <div class="navigation-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Navigation</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Navigation</div>
 
                         <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 0.3rem;">
                             <button onclick="this.closest('.edit-control').editControl.scrollToTop()"
@@ -119,7 +119,7 @@ class EditControl extends ControlBase {
 
                     <!-- Text Tools -->
                     <div class="text-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Text Tools</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Text Tools</div>
 
                         <button onclick="this.closest('.edit-control').editControl.showFindReplace()"
                                 style="width: 100%; padding: 0.4rem; margin-bottom: 0.3rem; background: #ffc107; color: #000; border: none; border-radius: 3px; cursor: pointer; font-size: 0.7rem;">
@@ -146,7 +146,7 @@ class EditControl extends ControlBase {
 
                     <!-- Markdown Tools -->
                     <div class="markdown-section" style="margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666;">Markdown Tools</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; color: #666; font-weight: 600;">Markdown Tools</div>
 
                         <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 0.3rem;">
                             <button onclick="this.closest('.edit-control').editControl.insertMarkdown('**', '**', 'Bold text')"
@@ -240,7 +240,7 @@ class EditControl extends ControlBase {
             `;
 
             exportMenu.innerHTML = `
-                <h4 style="margin-top: 0;">Export Document</h4>
+                <div style="margin-top: 0; font-weight: 600; font-size: 1.1em; color: #333; margin-bottom: 1rem;">Export Document</div>
                 <button onclick="this.parentElement.exportAsHTML()" style="display: block; width: 100%; padding: 0.5rem; margin-bottom: 0.3rem; background: #28a745; color: white; border: none; border-radius: 3px; cursor: pointer;">
                     Export as HTML
                 </button>

testdrive-jsui/static/js/controls/status-control.js

@@ -132,7 +132,7 @@ class StatusControl extends ControlBase {
 
             return `
                 <div style="padding: 1rem; font-size: 0.8rem;">
-                    <h4 style="margin-top: 0; margin-bottom: 1rem;">Document Statistics</h4>
+                    <div style="margin-top: 0; margin-bottom: 1rem; font-weight: 600; font-size: 1.1em; color: #333;">Document Statistics</div>
 
                     <div class="stats-grid" style="display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-bottom: 1rem;">
                         <div class="stat-item">
@@ -161,7 +161,7 @@ class StatusControl extends ControlBase {
                     </div>
 
                     <div class="structure-stats" style="border-top: 1px solid #eee; padding-top: 0.5rem; margin-bottom: 1rem;">
-                        <h5 style="margin: 0 0 0.5rem 0; font-size: 0.9em;">Document Structure</h5>
+                        <div style="margin: 0 0 0.5rem 0; font-size: 0.9em; font-weight: 600; color: #555;">Document Structure</div>
 
                         <div style="display: flex; justify-content: space-between; margin-bottom: 0.3rem;">
                             <span>Paragraphs:</span>