feat: Enable double-click on subgraph slot labels for renaming (#4833)

browser_tests/fixtures/ComfyPage.ts

@@ -786,6 +786,164 @@ export class ComfyPage {
     await this.nextFrame()
   }
 
+  /**
+   * Core helper method for interacting with subgraph I/O slots.
+   * Handles both input/output slots and both right-click/double-click actions.
+   *
+   * @param slotType - 'input' or 'output'
+   * @param action - 'rightClick' or 'doubleClick'
+   * @param slotName - Optional specific slot name to target
+   * @private
+   */
+  private async interactWithSubgraphSlot(
+    slotType: 'input' | 'output',
+    action: 'rightClick' | 'doubleClick',
+    slotName?: string
+  ): Promise<void> {
+    const foundSlot = await this.page.evaluate(
+      async (params) => {
+        const { slotType, action, targetSlotName } = params
+        const app = window['app']
+        const currentGraph = app.canvas.graph
+
+        // Check if we're in a subgraph
+        if (currentGraph.constructor.name !== 'Subgraph') {
+          throw new Error(
+            'Not in a subgraph - this method only works inside subgraphs'
+          )
+        }
+
+        // Get the appropriate node and slots
+        const node =
+          slotType === 'input'
+            ? currentGraph.inputNode
+            : currentGraph.outputNode
+        const slots =
+          slotType === 'input' ? currentGraph.inputs : currentGraph.outputs
+
+        if (!node) {
+          throw new Error(`No ${slotType} node found in subgraph`)
+        }
+
+        if (!slots || slots.length === 0) {
+          throw new Error(`No ${slotType} slots found in subgraph`)
+        }
+
+        // Filter slots based on target name and action type
+        const slotsToTry = targetSlotName
+          ? slots.filter((slot) => slot.name === targetSlotName)
+          : action === 'rightClick'
+            ? slots
+            : [slots[0]] // Right-click tries all, double-click uses first
+
+        if (slotsToTry.length === 0) {
+          throw new Error(
+            targetSlotName
+              ? `${slotType} slot '${targetSlotName}' not found`
+              : `No ${slotType} slots available to try`
+          )
+        }
+
+        // Handle the interaction based on action type
+        if (action === 'rightClick') {
+          // Right-click: try each slot until one works
+          for (const slot of slotsToTry) {
+            if (!slot.pos) continue
+
+            const event = {
+              canvasX: slot.pos[0],
+              canvasY: slot.pos[1],
+              button: 2, // Right mouse button
+              preventDefault: () => {},
+              stopPropagation: () => {}
+            }
+
+            if (node.onPointerDown) {
+              node.onPointerDown(
+                event,
+                app.canvas.pointer,
+                app.canvas.linkConnector
+              )
+            }
+
+            // Wait briefly for menu to appear
+            await new Promise((resolve) => setTimeout(resolve, 100))
+
+            // Check if context menu appeared
+            const menuExists = document.querySelector('.litemenu-entry')
+            if (menuExists) {
+              return {
+                success: true,
+                slotName: slot.name,
+                x: slot.pos[0],
+                y: slot.pos[1]
+              }
+            }
+          }
+        } else if (action === 'doubleClick') {
+          // Double-click: use first slot with bounding rect center
+          const slot = slotsToTry[0]
+          if (!slot.boundingRect) {
+            throw new Error(`${slotType} slot bounding rect not found`)
+          }
+
+          const rect = slot.boundingRect
+          const testX = rect[0] + rect[2] / 2 // x + width/2
+          const testY = rect[1] + rect[3] / 2 // y + height/2
+
+          const event = {
+            canvasX: testX,
+            canvasY: testY,
+            button: 0, // Left mouse button
+            preventDefault: () => {},
+            stopPropagation: () => {}
+          }
+
+          if (node.onPointerDown) {
+            node.onPointerDown(
+              event,
+              app.canvas.pointer,
+              app.canvas.linkConnector
+            )
+
+            // Trigger double-click
+            if (app.canvas.pointer.onDoubleClick) {
+              app.canvas.pointer.onDoubleClick(event)
+            }
+          }
+
+          // Wait briefly for dialog to appear
+          await new Promise((resolve) => setTimeout(resolve, 200))
+
+          return { success: true, slotName: slot.name, x: testX, y: testY }
+        }
+
+        return { success: false }
+      },
+      { slotType, action, targetSlotName: slotName }
+    )
+
+    if (!foundSlot.success) {
+      const actionText =
+        action === 'rightClick' ? 'open context menu for' : 'double-click'
+      throw new Error(
+        slotName
+          ? `Could not ${actionText} ${slotType} slot '${slotName}'`
+          : `Could not find any ${slotType} slot to ${actionText}`
+      )
+    }
+
+    // Wait for the appropriate UI element to appear
+    if (action === 'rightClick') {
+      await this.page.waitForSelector('.litemenu-entry', {
+        state: 'visible',
+        timeout: 5000
+      })
+    } else {
+      await this.nextFrame()
+    }
+  }
+
   /**
    * Right-clicks on a subgraph input slot to open the context menu.
    * Must be called when inside a subgraph.
@@ -800,93 +958,7 @@ export class ComfyPage {
    * @returns Promise that resolves when the context menu appears
    */
   async rightClickSubgraphInputSlot(inputName?: string): Promise<void> {
-    const foundSlot = await this.page.evaluate(async (targetInputName) => {
+    return this.interactWithSubgraphSlot('input', 'rightClick', inputName)
-      const app = window['app']
-      const currentGraph = app.canvas.graph
-
-      // Check if we're in a subgraph
-      if (currentGraph.constructor.name !== 'Subgraph') {
-        throw new Error(
-          'Not in a subgraph - this method only works inside subgraphs'
-        )
-      }
-
-      // Get the input node
-      const inputNode = currentGraph.inputNode
-      if (!inputNode) {
-        throw new Error('No input node found in subgraph')
-      }
-
-      // Get available inputs
-      const inputs = currentGraph.inputs
-      if (!inputs || inputs.length === 0) {
-        throw new Error('No input slots found in subgraph')
-      }
-
-      // Filter to specific input if requested
-      const inputsToTry = targetInputName
-        ? inputs.filter((inp) => inp.name === targetInputName)
-        : inputs
-
-      if (inputsToTry.length === 0) {
-        throw new Error(
-          targetInputName
-            ? `Input slot '${targetInputName}' not found`
-            : 'No input slots available to try'
-        )
-      }
-
-      // Try right-clicking on each input slot position until one works
-      for (const input of inputsToTry) {
-        if (!input.pos) continue
-
-        const testX = input.pos[0]
-        const testY = input.pos[1]
-
-        // Create a right-click event at the input slot position
-        const rightClickEvent = {
-          canvasX: testX,
-          canvasY: testY,
-          button: 2, // Right mouse button
-          preventDefault: () => {},
-          stopPropagation: () => {}
-        }
-
-        // Trigger the input node's right-click handler
-        if (inputNode.onPointerDown) {
-          inputNode.onPointerDown(
-            rightClickEvent,
-            app.canvas.pointer,
-            app.canvas.linkConnector
-          )
-        }
-
-        // Wait briefly for menu to appear
-        await new Promise((resolve) => setTimeout(resolve, 100))
-
-        // Check if litegraph context menu appeared
-        const menuExists = document.querySelector('.litemenu-entry')
-        if (menuExists) {
-          return { success: true, inputName: input.name, x: testX, y: testY }
-        }
-      }
-
-      return { success: false }
-    }, inputName)
-
-    if (!foundSlot.success) {
-      throw new Error(
-        inputName
-          ? `Could not open context menu for input slot '${inputName}'`
-          : 'Could not find any input slot position to right-click'
-      )
-    }
-
-    // Wait for the litegraph context menu to be visible
-    await this.page.waitForSelector('.litemenu-entry', {
-      state: 'visible',
-      timeout: 5000
-    })
   }
 
   /**
@@ -900,93 +972,31 @@ export class ComfyPage {
    * @returns Promise that resolves when the context menu appears
    */
   async rightClickSubgraphOutputSlot(outputName?: string): Promise<void> {
-    const foundSlot = await this.page.evaluate(async (targetOutputName) => {
+    return this.interactWithSubgraphSlot('output', 'rightClick', outputName)
-      const app = window['app']
+  }
-      const currentGraph = app.canvas.graph
 
-      // Check if we're in a subgraph
+  /**
-      if (currentGraph.constructor.name !== 'Subgraph') {
+   * Double-clicks on a subgraph input slot to rename it.
-        throw new Error(
+   * Must be called when inside a subgraph.
-          'Not in a subgraph - this method only works inside subgraphs'
+   *
-        )
+   * @param inputName Optional name of the specific input slot to target (e.g., 'text').
-      }
+   *                  If not provided, tries the first available input slot.
+   * @returns Promise that resolves when the rename dialog appears
+   */
+  async doubleClickSubgraphInputSlot(inputName?: string): Promise<void> {
+    return this.interactWithSubgraphSlot('input', 'doubleClick', inputName)
+  }
 
-      // Get the output node
+  /**
-      const outputNode = currentGraph.outputNode
+   * Double-clicks on a subgraph output slot to rename it.
-      if (!outputNode) {
+   * Must be called when inside a subgraph.
-        throw new Error('No output node found in subgraph')
+   *
-      }
+   * @param outputName Optional name of the specific output slot to target.
-
+   *                   If not provided, tries the first available output slot.
-      // Get available outputs
+   * @returns Promise that resolves when the rename dialog appears
-      const outputs = currentGraph.outputs
+   */
-      if (!outputs || outputs.length === 0) {
+  async doubleClickSubgraphOutputSlot(outputName?: string): Promise<void> {
-        throw new Error('No output slots found in subgraph')
+    return this.interactWithSubgraphSlot('output', 'doubleClick', outputName)
-      }
-
-      // Filter to specific output if requested
-      const outputsToTry = targetOutputName
-        ? outputs.filter((out) => out.name === targetOutputName)
-        : outputs
-
-      if (outputsToTry.length === 0) {
-        throw new Error(
-          targetOutputName
-            ? `Output slot '${targetOutputName}' not found`
-            : 'No output slots available to try'
-        )
-      }
-
-      // Try right-clicking on each output slot position until one works
-      for (const output of outputsToTry) {
-        if (!output.pos) continue
-
-        const testX = output.pos[0]
-        const testY = output.pos[1]
-
-        // Create a right-click event at the output slot position
-        const rightClickEvent = {
-          canvasX: testX,
-          canvasY: testY,
-          button: 2, // Right mouse button
-          preventDefault: () => {},
-          stopPropagation: () => {}
-        }
-
-        // Trigger the output node's right-click handler
-        if (outputNode.onPointerDown) {
-          outputNode.onPointerDown(
-            rightClickEvent,
-            app.canvas.pointer,
-            app.canvas.linkConnector
-          )
-        }
-
-        // Wait briefly for menu to appear
-        await new Promise((resolve) => setTimeout(resolve, 100))
-
-        // Check if litegraph context menu appeared
-        const menuExists = document.querySelector('.litemenu-entry')
-        if (menuExists) {
-          return { success: true, outputName: output.name, x: testX, y: testY }
-        }
-      }
-
-      return { success: false }
-    }, outputName)
-
-    if (!foundSlot.success) {
-      throw new Error(
-        outputName
-          ? `Could not open context menu for output slot '${outputName}'`
-          : 'Could not find any output slot position to right-click'
-      )
-    }
-
-    // Wait for the litegraph context menu to be visible
-    await this.page.waitForSelector('.litemenu-entry', {
-      state: 'visible',
-      timeout: 5000
-    })
   }
 
   /**

browser_tests/tests/subgraph.spec.ts

@@ -155,6 +155,182 @@ test.describe('Subgraph Operations', () => {
       expect(newInputName).toBe(RENAMED_INPUT_NAME)
       expect(newInputName).not.toBe(initialInputLabel)
     })
+
+    test('Can rename input slots via double-click', async ({ comfyPage }) => {
+      await comfyPage.loadWorkflow('basic-subgraph')
+
+      const subgraphNode = await comfyPage.getNodeRefById('2')
+      await subgraphNode.navigateIntoSubgraph()
+
+      const initialInputLabel = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.inputs?.[0]?.label || null
+      })
+
+      await comfyPage.doubleClickSubgraphInputSlot(initialInputLabel)
+
+      await comfyPage.page.waitForSelector(SELECTORS.promptDialog, {
+        state: 'visible'
+      })
+      await comfyPage.page.fill(SELECTORS.promptDialog, RENAMED_INPUT_NAME)
+      await comfyPage.page.keyboard.press('Enter')
+
+      // Force re-render
+      await comfyPage.canvas.click({ position: { x: 100, y: 100 } })
+      await comfyPage.nextFrame()
+
+      const newInputName = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.inputs?.[0]?.label || null
+      })
+
+      expect(newInputName).toBe(RENAMED_INPUT_NAME)
+      expect(newInputName).not.toBe(initialInputLabel)
+    })
+
+    test('Can rename output slots via double-click', async ({ comfyPage }) => {
+      await comfyPage.loadWorkflow('basic-subgraph')
+
+      const subgraphNode = await comfyPage.getNodeRefById('2')
+      await subgraphNode.navigateIntoSubgraph()
+
+      const initialOutputLabel = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.outputs?.[0]?.label || null
+      })
+
+      await comfyPage.doubleClickSubgraphOutputSlot(initialOutputLabel)
+
+      await comfyPage.page.waitForSelector(SELECTORS.promptDialog, {
+        state: 'visible'
+      })
+      const renamedOutputName = 'renamed_output'
+      await comfyPage.page.fill(SELECTORS.promptDialog, renamedOutputName)
+      await comfyPage.page.keyboard.press('Enter')
+
+      // Force re-render
+      await comfyPage.canvas.click({ position: { x: 100, y: 100 } })
+      await comfyPage.nextFrame()
+
+      const newOutputName = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.outputs?.[0]?.label || null
+      })
+
+      expect(newOutputName).toBe(renamedOutputName)
+      expect(newOutputName).not.toBe(initialOutputLabel)
+    })
+
+    test('Right-click context menu still works alongside double-click', async ({
+      comfyPage
+    }) => {
+      await comfyPage.loadWorkflow('basic-subgraph')
+
+      const subgraphNode = await comfyPage.getNodeRefById('2')
+      await subgraphNode.navigateIntoSubgraph()
+
+      const initialInputLabel = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.inputs?.[0]?.label || null
+      })
+
+      // Test that right-click still works for renaming
+      await comfyPage.rightClickSubgraphInputSlot(initialInputLabel)
+      await comfyPage.clickLitegraphContextMenuItem('Rename Slot')
+
+      await comfyPage.page.waitForSelector(SELECTORS.promptDialog, {
+        state: 'visible'
+      })
+      const rightClickRenamedName = 'right_click_renamed'
+      await comfyPage.page.fill(SELECTORS.promptDialog, rightClickRenamedName)
+      await comfyPage.page.keyboard.press('Enter')
+
+      // Force re-render
+      await comfyPage.canvas.click({ position: { x: 100, y: 100 } })
+      await comfyPage.nextFrame()
+
+      const newInputName = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.inputs?.[0]?.label || null
+      })
+
+      expect(newInputName).toBe(rightClickRenamedName)
+      expect(newInputName).not.toBe(initialInputLabel)
+    })
+
+    test('Can double-click on slot label text to rename', async ({
+      comfyPage
+    }) => {
+      await comfyPage.loadWorkflow('basic-subgraph')
+
+      const subgraphNode = await comfyPage.getNodeRefById('2')
+      await subgraphNode.navigateIntoSubgraph()
+
+      const initialInputLabel = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.inputs?.[0]?.label || null
+      })
+
+      // Use direct pointer event approach to double-click on label
+      await comfyPage.page.evaluate(() => {
+        const app = window['app']
+        const graph = app.canvas.graph
+        const input = graph.inputs?.[0]
+
+        if (!input?.labelPos) {
+          throw new Error('Could not get label position for testing')
+        }
+
+        // Use labelPos for more precise clicking on the text
+        const testX = input.labelPos[0]
+        const testY = input.labelPos[1]
+
+        const leftClickEvent = {
+          canvasX: testX,
+          canvasY: testY,
+          button: 0, // Left mouse button
+          preventDefault: () => {},
+          stopPropagation: () => {}
+        }
+
+        const inputNode = graph.inputNode
+        if (inputNode?.onPointerDown) {
+          inputNode.onPointerDown(
+            leftClickEvent,
+            app.canvas.pointer,
+            app.canvas.linkConnector
+          )
+
+          // Trigger double-click if pointer has the handler
+          if (app.canvas.pointer.onDoubleClick) {
+            app.canvas.pointer.onDoubleClick(leftClickEvent)
+          }
+        }
+      })
+
+      // Wait for dialog to appear
+      await comfyPage.page.waitForTimeout(200)
+      await comfyPage.nextFrame()
+
+      await comfyPage.page.waitForSelector(SELECTORS.promptDialog, {
+        state: 'visible'
+      })
+      const labelClickRenamedName = 'label_click_renamed'
+      await comfyPage.page.fill(SELECTORS.promptDialog, labelClickRenamedName)
+      await comfyPage.page.keyboard.press('Enter')
+
+      // Force re-render
+      await comfyPage.canvas.click({ position: { x: 100, y: 100 } })
+      await comfyPage.nextFrame()
+
+      const newInputName = await comfyPage.page.evaluate(() => {
+        const graph = window['app'].canvas.graph
+        return graph.inputs?.[0]?.label || null
+      })
+
+      expect(newInputName).toBe(labelClickRenamedName)
+      expect(newInputName).not.toBe(initialInputLabel)
+    })
   })
 
   test.describe('Subgraph Creation and Deletion', () => {

src/lib/litegraph/src/subgraph/SubgraphIONodeBase.ts

@@ -170,6 +170,21 @@ export abstract class SubgraphIONodeBase<
     }
   }
 
+  /**
+   * Handles double-click on an IO slot to rename it.
+   * @param slot The slot that was double-clicked.
+   * @param event The event that triggered the double-click.
+   */
+  protected handleSlotDoubleClick(
+    slot: TSlot,
+    event: CanvasPointerEvent
+  ): void {
+    // Only allow renaming non-empty slots
+    if (slot !== this.emptySlot) {
+      this.#promptForSlotRename(slot, event)
+    }
+  }
+
   /**
    * Shows the context menu for an IO slot.
    * @param slot The slot to show the context menu for.
@@ -239,16 +254,7 @@ export abstract class SubgraphIONodeBase<
       // Rename the slot
       case 'rename':
         if (slot !== this.emptySlot) {
-          this.subgraph.canvasAction((c) =>
+          this.#promptForSlotRename(slot, event)
-            c.prompt(
-              'Slot name',
-              slot.name,
-              (newName: string) => {
-                if (newName) this.renameSlot(slot, newName)
-              },
-              event
-            )
-          )
         }
         break
     }
@@ -256,6 +262,24 @@ export abstract class SubgraphIONodeBase<
     this.subgraph.setDirtyCanvas(true)
   }
 
+  /**
+   * Prompts the user to rename a slot.
+   * @param slot The slot to rename.
+   * @param event The event that triggered the rename.
+   */
+  #promptForSlotRename(slot: TSlot, event: CanvasPointerEvent): void {
+    this.subgraph.canvasAction((c) =>
+      c.prompt(
+        'Slot name',
+        slot.name,
+        (newName: string) => {
+          if (newName) this.renameSlot(slot, newName)
+        },
+        event
+      )
+    )
+  }
+
   /** Arrange the slots in this node. */
   arrange(): void {
     const { minWidth, roundedRadius } = SubgraphIONodeBase

src/lib/litegraph/src/subgraph/SubgraphInputNode.ts

@@ -4,7 +4,6 @@ import { LLink } from '@/lib/litegraph/src/LLink'
 import type { RerouteId } from '@/lib/litegraph/src/Reroute'
 import type { LinkConnector } from '@/lib/litegraph/src/canvas/LinkConnector'
 import { SUBGRAPH_INPUT_ID } from '@/lib/litegraph/src/constants'
-import { Rectangle } from '@/lib/litegraph/src/infrastructure/Rectangle'
 import type {
   DefaultConnectionColors,
   INodeInputSlot,
@@ -51,18 +50,17 @@ export class SubgraphInputNode
     // Left-click handling for dragging connections
     if (e.button === 0) {
       for (const slot of this.allSlots) {
-        const slotBounds = Rectangle.fromCentre(
+        // Check if click is within the full slot area (including label)
-          slot.pos,
+        if (slot.boundingRect.containsXy(e.canvasX, e.canvasY)) {
-          slot.boundingRect.height
-        )
-
-        if (slotBounds.containsXy(e.canvasX, e.canvasY)) {
           pointer.onDragStart = () => {
             linkConnector.dragNewFromSubgraphInput(this.subgraph, this, slot)
           }
           pointer.onDragEnd = (eUp) => {
             linkConnector.dropLinks(this.subgraph, eUp)
           }
+          pointer.onDoubleClick = () => {
+            this.handleSlotDoubleClick(slot, e)
+          }
           pointer.finally = () => {
             linkConnector.reset(true)
           }

src/lib/litegraph/src/subgraph/SubgraphOutputNode.ts

@@ -4,7 +4,6 @@ import type { LLink } from '@/lib/litegraph/src/LLink'
 import type { RerouteId } from '@/lib/litegraph/src/Reroute'
 import type { LinkConnector } from '@/lib/litegraph/src/canvas/LinkConnector'
 import { SUBGRAPH_OUTPUT_ID } from '@/lib/litegraph/src/constants'
-import { Rectangle } from '@/lib/litegraph/src/infrastructure/Rectangle'
 import type {
   DefaultConnectionColors,
   INodeInputSlot,
@@ -51,18 +50,17 @@ export class SubgraphOutputNode
     // Left-click handling for dragging connections
     if (e.button === 0) {
       for (const slot of this.allSlots) {
-        const slotBounds = Rectangle.fromCentre(
+        // Check if click is within the full slot area (including label)
-          slot.pos,
+        if (slot.boundingRect.containsXy(e.canvasX, e.canvasY)) {
-          slot.boundingRect.height
-        )
-
-        if (slotBounds.containsXy(e.canvasX, e.canvasY)) {
           pointer.onDragStart = () => {
             linkConnector.dragNewFromSubgraphOutput(this.subgraph, this, slot)
           }
           pointer.onDragEnd = (eUp) => {
             linkConnector.dropLinks(this.subgraph, eUp)
           }
+          pointer.onDoubleClick = () => {
+            this.handleSlotDoubleClick(slot, e)
+          }
           pointer.finally = () => {
             linkConnector.reset(true)
           }