stefnotch / quantum-sheet

QuantumSheet - A user friendly mathematics worksheet and solver

https://stefnotch.github.io/quantum-sheet/

GNU General Public License v3.0

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Selecting blocks #8

Closed stefnotch closed 2 years ago

stefnotch commented 4 years ago

Maybe something like this (inspired by MathCad, I think)

An element has 3 states: unselected, focused and selected

Unselected

No selection, no editing

[x] no effect
[x] hover: hover effect
[ ] pointerdown: clear selection and focus
[ ] pointermove: select text

Focused

When editing the element

[x] focus effect
[x] hover: focus effect
[ ] hover border: hover effect and move cursor
[ ] pointerdown: put cursor at position
[ ] pointermove: select text
[ ] pointerdown border: select and capture pointer
[ ] pointermove border: move
[ ] pointerup border: release pointer

Selected

When explicitly selecting the element

[x] select effect and move cursor
[x] hover: select effect and move cursor
[ ] hover border: select effect and move cursor
[ ] pointerdown: capture pointer
[ ] pointermove: move
[ ] pointerup: release pointer
[ ] pointerup and no movement: release pointer and select