Constants

The JadeView E-Language SDK defines a number of constants to simplify coding and improve code readability. Below are all the publicly available constants:

Theme Constants

The JadeView E-Language SDK provides three theme constants for setting the theme of the WebView window.

主题_亮色

Constant: #主题_亮色

Value: "Light"

Description: Sets the WebView window to use the light theme.

Use cases:

• When you need to always use the light theme
• When the application uses the light theme by default

Example code:

.局部变量 窗口设置, JadeView窗口设置
窗口设置.窗口主题 ＝ #主题_亮色

主题_暗色

Constant: #主题_暗色

Value: "Dark"

Description: Sets the WebView window to use the dark theme.

Use cases:

• When you need to always use the dark theme
• When the application uses the dark theme by default

Example code:

.局部变量 窗口设置, JadeView窗口设置
窗口设置.窗口主题 ＝ #主题_暗色

主题_自动

Constant: #主题_自动

Value: "System"

Description: Sets the WebView window to automatically switch between the light and dark themes following the system theme.

Use cases:

• When you want the application to follow the system theme
• When you need to provide a better user experience

Example code:

.局部变量 窗口设置, JadeView窗口设置
窗口设置.窗口主题 ＝ #主题_自动

Usage Recommendations

• Prefer using the theme constants rather than string literals directly, as this improves the readability and maintainability of your code
• When setting the window theme, consider the user's system preference; it is recommended to use #主题_自动 by default
• You can dynamically switch the theme based on the user's settings, for example by providing a theme switching option

Notes

• The values of the theme constants are of string type; using string literals directly achieves the same effect, but this is not recommended
• Switching the theme may trigger a re-render of the WebView, which may cause a brief flicker
• Some systems or browser versions may not support automatic theme switching, in which case it falls back to the default theme

Related APIs

• set_window_theme - Dynamically sets the window theme
• get_window_theme - Gets the current window theme

Summary

The theme constants provided by the JadeView E-Language SDK simplify the code for setting themes and improve code readability and maintainability. It is recommended to prefer these constants over string literals directly during development.