Bug Description

Currently, the Command and Option modifier keys do not behave as expected when navigating and manipulating text on macOS — at least within both the Slint Widget Gallery web demo and the new Material Component Set web demo (I haven't tested running native directly on macOS yet).

The examples I encountered (there might be more):

• Option + Left has no effect;
• Option + Right has no effect;
• Option + Up has no effect;
• Option + Down has no effect;
• Option + Delete has no effect;
• Fn + Option + Delete has no effect;
• Command + Left moves the caret to the beginning of the previous word;
• Command + Right moves the caret to the end of the following word;
• Command + Up moves the caret to the beginning of the paragraph;
• Command + Down moves the caret to the end of the paragraph;
• Command + Delete deletes the previous word;
• Fn + Command + Delete deletes the following word.

Solution

Follow macOS conventions when running on macOS:

• Option + Left should move the caret to the beginning of the previous word;
• Option + Right should move the caret to the end of the following word;
• Option + Up should move the caret to the beginning of paragraph;
• Option + Down should move the caret to the end of the paragraph;
• Option + Delete should delete the previous word;
• Fn + Option + Delete should delete the following word;
• Command + Left should move the caret to the beginning of the line;
• Command + Right should move the caret to the end of the line;
• Command + Up should move the caret to the beginning of the whole text (position zero, so to speak);
• Command + Down should move the caret to the end of the whole text;
• Command + Delete should delete the entire line;
• Fn + Command + Delete should do nothing (plays the system alert sound, to tell the user no action can be performed).

Reproducible Code (if applicable)

Environment Details

• Slint Version: ??
• Platform/OS: [Web Demos on Brave] on macOS
• Programming Language: ??
• Backend/Renderer: ??

Product Impact

No response