Add extended keyboard shortcut mode via ctrl + k for tool shortcuts

CHANGELOG.unreleased.md

@@ -11,6 +11,7 @@ For upgrade instructions, please check the [migration guide](MIGRATIONS.released
 [Commits](https://github.com/scalableminds/webknossos/compare/23.06.0...HEAD)
 
 ### Added
+- Added new shortcuts for fast tool switching. Look at the updated [Keyboard Shortcuts documentation](https://docs.webknossos.org/webknossos/keyboard_shortcuts.html#tool-switching-shortcuts) to see the new shortcuts. [#7112](https://github.com/scalableminds/webknossos/pull/7112)
 - Subfolders of the currently active folder are now also rendered in the dataset table in the dashboard. [#6996](https://github.com/scalableminds/webknossos/pull/6996)
 - Added ability to view [zarr v3](https://zarr-specs.readthedocs.io/en/latest/v3/core/v3.0.html) datasets. [#7079](https://github.com/scalableminds/webknossos/pull/7079)
 - Added an index structure for volume annotation segments, in preparation for per-segment statistics. [#7063](https://github.com/scalableminds/webknossos/pull/7063)

docs/keyboard_shortcuts.md

@@ -100,8 +100,6 @@ Note that you can enable *Classic Controls* which will behave slightly different
 | CTRL + SHIFT + Left Mouse Drag    | Remove Voxels From Segment                                     |
 | Alt + Mouse Move                  | Move                                                        |
 | C                                 | Create New Segment                                             |
-| W                                 | Cycle Through Tools (Move / Skeleton / Trace / Brush / ...)    |
-| SHIFT + W                         | Cycle Backwards Through Tools (Move / Proofread / Bounding Box / Pick Cell / ...) |
 | SHIFT + Mousewheel or SHIFT + I, O | Change Brush Size (Brush Mode)                             |
 | V                                 | Interpolate current segment between last labeled and current slice |
 
@@ -112,12 +110,32 @@ Note that you can enable *Classic Controls* which won't open a context menu on r
 | Right Mouse Drag                  | Remove Voxels                                               |
 | CTRL + Right Mouse Drag           | Remove Voxels while inverting the overwrite-mode (see toolbar for overwrite-mode) |
 
+## Tool Switching Shortcuts
+
+Note that you need to first press CTRL + K, release these keys and then the letter that was assigned to a specific tool in order to switch to it.  
+CTRL + K is not needed for cyclic tool switching via W / SHIFT + W.
+
+| Key Binding                       | Operation                                                                         |
+| --------------------------------- | --------------------------------------------------------------------------------- |
+| W                                 | Cycle Through Tools (Move / Skeleton / Trace / Brush / ...)                       |
+| SHIFT + W                         | Cycle Backwards Through Tools (Move / Proofread / Bounding Box / Pick Cell / ...) |
+| CTRL + K, **M**                       | Move Tool                                                                         |
+| CTRL + K, **S**                       | Skeleton Tool                                                                     |
+| CTRL + K, **B**                       | Brush Tool                                                                        |
+| CTRL + K, **E**                       | Brush Erase Tool                                                                  |
+| CTRL + K, **L**                       | Lasso Tool                                                                        |
+| CTRL + K, **R**                       | Lasso Erase Too                                                                  |
+| CTRL + K, **P**                       | Segment Picker Tool                                                               |
+| CTRL + K, **Q**                       | Quick Select Tool                                                                 |
+| CTRL + K, **X**                       | Bounding Box Tool                                                                 |
+| CTRL + K, **O**                       | Proofreading Tool                                                                 |
+
 ## Mesh Related Shortcuts
 
 | Key Binding                                            | Operation                                                   |
 | ------------------------------------------------------ | ----------------------------------------------------------- |
 | Shift + Click on a mesh in the 3D viewport          | Move the camera to the clicked position          |
-| Ctrl + Click on a mesh in the 3D viewport           | Unload the mesh from WEBKNOSSOS
+| Ctrl + Click on a mesh in the 3D viewport           | Unload the mesh from WEBKNOSSOS    |
 
 ## Agglomerate File Mapping Skeleton
 

frontend/javascripts/libs/input.ts

@@ -67,28 +67,79 @@ function shouldIgnore(event: KeyboardEvent, key: KeyboardKey) {
 // This keyboard hook directly passes a keycombo and callback
 // to the underlying KeyboadJS library to do its dirty work.
 // Pressing a button will only fire an event once.
+const EXTENDED_COMMAND_KEYS = "ctrl + k";
+const EXTENDED_COMMAND_DURATION = 3000;
 export class InputKeyboardNoLoop {
   bindings: Array<KeyboardBindingPress> = [];
   isStarted: boolean = true;
   supportInputElements: boolean = false;
+  hasExtendedBindings: boolean = false;
+  cancelExtendedModeTimeoutId: ReturnType<typeof setTimeout> | null = null;
 
   constructor(
     initialBindings: BindingMap<KeyboardHandler>,
     options?: {
       supportInputElements?: boolean;
     },
+    extendedCommands?: BindingMap<KeyboardHandler>,
   ) {
     if (options) {
       this.supportInputElements = options.supportInputElements || this.supportInputElements;
     }
 
+    if (extendedCommands != null && initialBindings[EXTENDED_COMMAND_KEYS] != null) {
+      console.warn(
+        `Extended commands are enabled, but the keybinding for it is already in use. Please change the keybinding for '${EXTENDED_COMMAND_KEYS}'.`,
+      );
+    }
+
+    if (extendedCommands) {
+      this.hasExtendedBindings = true;
+      document.addEventListener("keydown", this.preventBrowserSearchbarShortcut);
+      this.attach(EXTENDED_COMMAND_KEYS, this.toggleExtendedMode);
+      // Add empty callback in extended mode to deactivate the extended mode via the same EXTENDED_COMMAND_KEYS.
+      this.attach(EXTENDED_COMMAND_KEYS, _.noop, true);
+      for (const key of Object.keys(extendedCommands)) {
+        const callback = extendedCommands[key];
+        this.attach(key, callback, true);
+      }
+    }
+
     for (const key of Object.keys(initialBindings)) {
       const callback = initialBindings[key];
       this.attach(key, callback);
     }
   }
 
-  attach(key: KeyboardKey, callback: KeyboardHandler) {
+  toggleExtendedMode = (evt: KeyboardEvent) => {
+    evt.preventDefault();
+    const isInExtendedMode = KeyboardJS.getContext() === "extended";
+    if (isInExtendedMode) {
+      this.cancelExtendedModeTimeout();
+      KeyboardJS.setContext("default");
+      return;
+    }
+    KeyboardJS.setContext("extended");
+    this.cancelExtendedModeTimeoutId = setTimeout(() => {
+      KeyboardJS.setContext("default");
+    }, EXTENDED_COMMAND_DURATION);
+  };
+
+  preventBrowserSearchbarShortcut = (evt: KeyboardEvent) => {
+    if (evt.ctrlKey && evt.key === "k") {
+      evt.preventDefault();
+      evt.stopPropagation();
+    }
+  };
+
+  cancelExtendedModeTimeout() {
+    if (this.cancelExtendedModeTimeoutId != null) {
+      clearTimeout(this.cancelExtendedModeTimeoutId);
+      this.cancelExtendedModeTimeoutId = null;
+    }
+  }
+
+  attach(key: KeyboardKey, callback: KeyboardHandler, isExtendedCommand: boolean = false) {
     const binding = [
       key,
       (event: KeyboardEvent) => {
@@ -103,6 +154,11 @@ export class InputKeyboardNoLoop {
         if (shouldIgnore(event, key)) {
           return;
         }
+        const isInExtendedMode = KeyboardJS.getContext() === "extended";
+        if (isInExtendedMode) {
+          this.cancelExtendedModeTimeout();
+          KeyboardJS.setContext("default");
+        }
 
         if (!event.repeat) {
           callback(event);
@@ -113,7 +169,15 @@ export class InputKeyboardNoLoop {
       },
       _.noop,
     ];
-    KeyboardJS.bind(...binding);
+    if (isExtendedCommand) {
+      KeyboardJS.withContext("extended", () => {
+        KeyboardJS.bind(...binding);
+      });
+    } else {
+      KeyboardJS.withContext("default", () => {
+        KeyboardJS.bind(...binding);
+      });
+    }
     // @ts-expect-error ts-migrate(2345) FIXME: Argument of type '(string | ((...args: any[]) => v... Remove this comment to see the full error message
     return this.bindings.push(binding);
   }
@@ -124,6 +188,9 @@ export class InputKeyboardNoLoop {
     for (const binding of this.bindings) {
       KeyboardJS.unbind(...binding);
     }
+    if (this.hasExtendedBindings) {
+      document.removeEventListener("keydown", this.preventBrowserSearchbarShortcut);
+    }
   }
 }
 // This module is "main" keyboard handler.
@@ -221,7 +288,9 @@ export class InputKeyboard {
         }
       },
     ];
-    KeyboardJS.bind(...binding);
+    KeyboardJS.withContext("default", () => {
+      KeyboardJS.bind(...binding);
+    });
     this.bindings.push(binding);
   }
 

frontend/javascripts/libs/keyboard.ts

@@ -257,6 +257,9 @@
               this._paused = false;
               this.setContext("global");
               this.watch(targetWindow, targetElement, platform, userAgent);
+              // Switch to default context whose shortcuts will not be active in other contexts.
+              // Having the global context as default would leave the shortcuts in all contexts active.
+              this.setContext("default");
             }
 
             Keyboard.prototype.setLocale = function (localeName, localeBuilder) {

frontend/javascripts/oxalis/controller/viewmodes/plane_controller.tsx

@@ -31,7 +31,12 @@ import {
   createCellAction,
   interpolateSegmentationLayerAction,
 } from "oxalis/model/actions/volumetracing_actions";
-import { cycleToolAction, enterAction, escapeAction } from "oxalis/model/actions/ui_actions";
+import {
+  cycleToolAction,
+  enterAction,
+  escapeAction,
+  setToolAction,
+} from "oxalis/model/actions/ui_actions";
 import {
   MoveTool,
   SkeletonTool,
@@ -93,6 +98,10 @@ const cycleToolsBackwards = () => {
   Store.dispatch(cycleToolAction(true));
 };
 
+const setTool = (tool: AnnotationTool) => {
+  Store.dispatch(setToolAction(tool));
+};
+
 type StateProps = {
   tracing: Tracing;
   activeTool: AnnotationTool;
@@ -131,6 +140,10 @@ class SkeletonKeybindings {
       "ctrl + down": () => SkeletonHandlers.moveNode(0, 1),
     };
   }
+
+  static getExtendedKeyboardControls() {
+    return { s: () => setTool(AnnotationToolEnum.SKELETON) };
+  }
 }
 
 class VolumeKeybindings {
@@ -154,6 +167,19 @@ class VolumeKeybindings {
       },
     };
   }
+
+  static getExtendedKeyboardControls() {
+    return {
+      b: () => setTool(AnnotationToolEnum.BRUSH),
+      e: () => setTool(AnnotationToolEnum.ERASE_BRUSH),
+      l: () => setTool(AnnotationToolEnum.TRACE),
+      r: () => setTool(AnnotationToolEnum.ERASE_TRACE),
+      f: () => setTool(AnnotationToolEnum.FILL_CELL),
+      p: () => setTool(AnnotationToolEnum.PICK_CELL),
+      q: () => setTool(AnnotationToolEnum.QUICK_SELECT),
+      o: () => setTool(AnnotationToolEnum.PROOFREAD),
+    };
+  }
 }
 
 class BoundingBoxKeybindings {
@@ -162,6 +188,10 @@ class BoundingBoxKeybindings {
       c: () => Store.dispatch(addUserBoundingBoxAction()),
     };
   }
+
+  static getExtendedKeyboardControls() {
+    return { x: () => setTool(AnnotationToolEnum.BOUNDING_BOX) };
+  }
 }
 
 const getMoveValue = (timeFactor: number) => {
@@ -376,7 +406,10 @@ class PlaneController extends React.PureComponent<Props> {
       up: (timeFactor) => MoveHandlers.moveV(-getMoveValue(timeFactor)),
       down: (timeFactor) => MoveHandlers.moveV(getMoveValue(timeFactor)),
     });
-    const notLoopedKeyboardControls = this.getNotLoopedKeyboardControls();
+    const {
+      baseControls: notLoopedKeyboardControls,
+      extendedControls: extendedNotLoopedKeyboardControls,
+    } = this.getNotLoopedKeyboardControls();
     const loopedKeyboardControls = this.getLoopedKeyboardControls();
     ensureNonConflictingHandlers(notLoopedKeyboardControls, loopedKeyboardControls);
     this.input.keyboardLoopDelayed = new InputKeyboard(
@@ -404,7 +437,11 @@ class PlaneController extends React.PureComponent<Props> {
         delay: Store.getState().userConfiguration.keyboardDelay,
       },
     );
-    this.input.keyboardNoLoop = new InputKeyboardNoLoop(notLoopedKeyboardControls);
+    this.input.keyboardNoLoop = new InputKeyboardNoLoop(
+      notLoopedKeyboardControls,
+      {},
+      extendedNotLoopedKeyboardControls,
+    );
     this.storePropertyUnsubscribers.push(
       listenToStoreProperty(
         (state) => state.userConfiguration.keyboardDelay,
@@ -454,6 +491,11 @@ class PlaneController extends React.PureComponent<Props> {
       w: cycleTools,
       "shift + w": cycleToolsBackwards,
     };
+    let extendedControls = {
+      m: () => setTool(AnnotationToolEnum.MOVE),
+      ...BoundingBoxKeybindings.getExtendedKeyboardControls(),
+    };
+
     // TODO: Find a nicer way to express this, while satisfying flow
     const emptyDefaultHandler = {
       c: null,
@@ -468,16 +510,29 @@ class PlaneController extends React.PureComponent<Props> {
         : emptyDefaultHandler;
     const { c: boundingBoxCHandler } = BoundingBoxKeybindings.getKeyboardControls();
     ensureNonConflictingHandlers(skeletonControls, volumeControls);
+    const extendedSkeletonControls =
+      this.props.tracing.skeleton != null ? SkeletonKeybindings.getExtendedKeyboardControls() : {};
+    const extendedVolumeControls =
+      this.props.tracing.volumes.length > 0 != null
+        ? VolumeKeybindings.getExtendedKeyboardControls()
+        : {};
+    ensureNonConflictingHandlers(extendedSkeletonControls, extendedVolumeControls);
+    const extendedAnnotationControls = { ...extendedSkeletonControls, ...extendedVolumeControls };
+    ensureNonConflictingHandlers(extendedAnnotationControls, extendedControls);
+    extendedControls = { ...extendedControls, ...extendedAnnotationControls };
 
     return {
-      ...baseControls,
-      ...skeletonControls,
-      ...volumeControls,
-      c: this.createToolDependentKeyboardHandler(
-        skeletonCHandler,
-        volumeCHandler,
-        boundingBoxCHandler,
-      ),
+      baseControls: {
+        ...baseControls,
+        ...skeletonControls,
+        ...volumeControls,
+        c: this.createToolDependentKeyboardHandler(
+          skeletonCHandler,
+          volumeCHandler,
+          boundingBoxCHandler,
+        ),
+      },
+      extendedControls,
     };
   }
 

frontend/javascripts/test/helpers/apiHelpers.ts

@@ -68,6 +68,7 @@ mockRequire("libs/date", DateMock);
 export const KeyboardJS = {
   bind: _.noop,
   unbind: _.noop,
+  withContext: (_arg0: string, arg1: () => void) => arg1(),
 };
 mockRequire("libs/keyboard", KeyboardJS);
 mockRequire("libs/toast", {