Context Menu Access via Left Button Long Press

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Solution Overview

Problem

User interfaces often disable right-click access to context menus for security or other reasons, preventing users from accessing essential options, especially in web interfaces or sensitive content scenarios.

Innovation Solution

Implementing a method where a long click of the left mouse button activates a context menu, with a visual indicator showing the remaining time until the menu appears, allowing access to context menu options even when right-click is disabled.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If right-click operation is disabled to access context menu, then security or control requirements are met, but user access to context menu options is prevented

Engineering Contradiction:
Improvesecurity controlVSAvoiduser access to context menu
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent inverts the conventional mouse interaction by using a long press of the left button (typically used for selection) instead of the right button to access the context menu. This inversion allows the system to maintain right-click disabling for security while providing alternative access through left-button long press detection, resolving the contradiction between security control and user access.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent introduces a time-based threshold as an intermediary mechanism. By requiring the left button to be held for a specific duration (threshold time) before triggering the context menu, the system creates a mediating condition that distinguishes intentional context menu access from normal selection operations, enabling security-aware access control.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If left button long press is used to access context menu, then alternative access method is provided, but user interaction time is increased

Engineering Contradiction:
Improvealternative access methodVSAvoidbutton hold duration
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent changes the parameter of button press duration from irrelevant to critical. By introducing a threshold time parameter, the system transforms the left button press from a simple selection action into a time-dependent operation. This parameter change enables the system to distinguish between normal clicks and context menu requests, providing versatile access while managing time loss through configurable thresholds.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs periodic checking of the button press state against the threshold time. The system continuously monitors the duration of the left button press and compares it against the predefined threshold, creating a periodic evaluation mechanism that triggers the context menu when the condition is met, thereby balancing adaptability with time efficiency.

Inventive Principle:
Principle #19Periodic action

3Loss of information

If visual indicator is displayed showing remaining time, then user feedback is improved, but interface complexity is increased

Engineering Contradiction:
Improveuser feedback on timingVSAvoidinterface elements
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent implements visual feedback by displaying an indicator that shows the remaining time required to trigger the context menu. This feedback mechanism informs users of the threshold time requirement and provides real-time status during the button press, reducing information loss and improving user understanding of the interaction requirement.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent utilizes color changes in the visual indicator to communicate the timing status. By changing the color or appearance of the indicator based on the elapsed time versus threshold time, the system provides intuitive visual feedback without requiring complex interface elements, balancing information provision with interface simplicity.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP3614247B1Long click display of a context menu
Publication Date: 2021.06.30 PALANTIR TECHNOLOGIES INC
  • EP3614247B1 patent drawingFigure 1
  • EP3614247B1 patent drawingFigure 2A~2C
  • EP3614247B1 patent drawingFigure 3

AI summary

In cases where the right mouse click operation to access a context menu is disabled, the techniques described in the disclosure may provide access to the context menu through a long click of the left mouse button. For example, the user may click and hold the left mouse button for at least a threshold period of time, and in response thereto, the user interface is updated to display the context menu. To indicate to the user how long it would take for the context menu to appear, an icon can be displayed next to the cursor, or as a part of the cursor. The icon can show the relative time left before the context menu is displayed (e.g., an elapsed and/or remaining portion of the threshold period of time, etc.).