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sweetgum

v0.0.2

Published

A fast, canvas-rendered json tree viewer

Downloads

1

Readme

Sweetgum

Sweetgum is a fast, canvas-rendered json tree viewer.

Usage

` //

const ctx = document.getElementById('canvas').getContext('2d'); ctx.canvas.focus();

const data = {a:'foo',b:[{a:'foo'},'baz'],c:['bar','baz']};

const options = { top: 20, left: 50, indent: 20, handleRadius: 5, textMargin: 15, twigHeight: 15, maxVisible: 30, font: '10pt Courier New', drawHandle: null };

const tree = new Sweetgum.Tree(ctx, data, options); `

Controls

Controls:

Space                   edit value
Shift+Space             edit key
Ctrl+Space              edit {} or [] subtree (display a large textarea with underlying text representation) (TODO)

Ctrl+C                  copy value to input bar (TODO)
Ctrl+Shift+C            copy path to input bar (TODO)

Up                      Move cursor up (in display order)
Down                    Move cursor down (in display order)
Shift+Up                Move cursor to prev sibling
Shift+Down              Move cursor to next sibling
Ctrl+Up                 Move cursor to parent
Ctrl+Shift+Up           Move cursor to root

Right                   Open, or move cursor to next
Left                    Close, or move cursor to parent
Ctrl+Right              Open descendants
Ctrl+Left               Close descendants
Shift+Right             Open children
Shift+Left              Close children
Ctrl+Shift+Right        Open children and descendants
Ctrl+Shift+Left         Close children and descendants
Shift+Alt+Right         Open grandchildren - this conflicts with add first child
Shift+Alt+Left          Close grandchildren - this conflicts with add array parent
Ctrl+Shift+Alt+Right    Open grandchildren and descendants
Ctrl+Shift+Alt+Left     Close grandchildren and descendants

Alt+Up                  Add prev sibling
Alt+Down                Add next sibling
Alt+Left                Add object parent
Alt+Shift+Left          Add array parent - this conflicts with close grandchildren (change to Ctrl+Alt+Left)
Alt+Right               Add first child - this conflicts with open grandchildren (change to Ctrl+Down)
Shift+Alt+Up            Switch with prev sibling
Shift+Alt+Down          Switch with next sibling
Delete                  Delete selected

Shift+Scroll            Scroll by 1
Scroll                  Scroll by 10
Ctrl+Scroll             Scroll by 100
Ctrl+Shift+Scroll       Scroll by 1000
Ctrl+Shift+Alt+Scroll   Scroll by 10000
PageUp/PageDown is equivalent to Scroll