Semi-transparent Panel for Modal Dialog in HTML and WPF
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Solution Overview
Problem
In graphical user interfaces, particularly in HTML pages and Windows Presentation Foundation (WPF) applications, there is no native support for modal dialog boxes, leading to an undesirable user experience when modal interactions are required.
Innovation Solution
A semi-transparent panel is superimposed over the GUI page to simulate a modal dialog box by making areas outside the dialog box inaccessible, with user interactions outside the dialog box ignored or generating alerts, allowing a regular or built-in dialog to behave like a modal dialog box without relying on specific SDK functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a regular dialog box is used in HTML/WPF environments without native modal support, then the dialog box can be displayed, but user interactions outside the dialog box are not blocked and the modal experience is lost
Solution Approach 1:
The patent introduces a semi-transparent panel as an intermediary element between the dialog box and the underlying GUI page. This panel acts as a mediator that captures user interactions intended for the page below, preventing them from reaching the page controls while allowing the dialog box to remain accessible. The panel effectively translates the non-modal dialog into a modal experience by intercepting and discarding clicks outside the dialog boundaries.
Solution Approach 2:
The semi-transparent panel applies a localized visual property (semi-transparency) to create a visual distinction between the dialog area and the rest of the page. This local quality change helps users perceive the dialog as the active focal point while the underlying page becomes visually subdued, reinforcing the modal interaction pattern without requiring actual functional blocking of all page elements.
2Reliability
If SDK functions are used to create modal dialog boxes, then proper modal behavior is achieved, but the solution is not available in HTML pages and WPF applications
Solution Approach 1:
The patent creates a universal modal dialog implementation that works across multiple platforms (HTML, WPF, and traditional GUI) by using a common technique of superimposing a semi-transparent panel. This approach eliminates the need for platform-specific SDK functions, allowing the same modal dialog pattern to be implemented consistently across different technological environments using standard web and GUI elements.
Solution Approach 2:
The solution segments the modal dialog functionality into independent, platform-agnostic components: a dialog container, a semi-transparent blocking panel, and event handling logic. This segmentation allows each component to be implemented using standard elements available in HTML, WPF, and traditional GUI frameworks, making the overall solution universally applicable without relying on proprietary SDK functions.
3Reliability
If a semi-transparent panel is superimposed over the GUI page, then areas outside the dialog box appear inaccessible, but the panel itself occupies visual space
Solution Approach 1:
The patent uses color and transparency changes as the primary mechanism for the semi-transparent panel. By applying a semi-transparent overlay with reduced opacity, the panel visually diminishes the appearance of underlying page elements without completely obscuring them. This allows the panel to occupy the necessary visual space to block interactions while maintaining a subtle, non-intrusive appearance that doesn't completely hide the underlying content.
Data Source
AI summary
Techniques for presenting a modal dialog box in a graphical user interface are described herein. According to one embodiment, a semi-transparent panel is displayed superimposed on a graphical user interface (GUI) page in response to a first user interaction with the GUI page. The GUI page provides a user interface for managing a virtualization system. A dialog box is then displayed on top of the semi-transparent panel, where the dialog box is to receive an input from the user. An alert is generated in response to a second user interaction with an area of the semi-transparent panel other than the dialog box, where the alert indicates that the second user interaction is invalid. Other methods and apparatuses are also described.