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Original file line number | Diff line number | Diff line change |
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import type { Command } from "prosemirror-state"; | ||
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import { EditorState, NodeSelection } from "prosemirror-state"; | ||
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import type { Dispatch } from "./types"; | ||
import { insertNodeIntoEditor } from "../utils/nodes"; | ||
import { createCommandSpec } from "./util"; | ||
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type MathType = "math_inline" | "math_display"; | ||
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const toggleInlineOrBlock: Command = (state: EditorState, dispatch?: Dispatch) => { | ||
const { node } = state.selection as NodeSelection; | ||
const canRun = node && (node.type.name === "math_inline" || node.type.name === "math_display"); | ||
if (!canRun) { | ||
return false; | ||
} | ||
const isDisplay = node.type.name === "math_display"; | ||
if (dispatch) { | ||
const { | ||
schema: { | ||
nodes: { math_display: displayType, math_inline: inlineType }, | ||
}, | ||
} = state; | ||
const swapNodeType = isDisplay ? inlineType : displayType; | ||
const transaction = state.tr.replaceSelectionWith( | ||
swapNodeType.create({}, node.content), | ||
true | ||
); | ||
dispatch(transaction); | ||
} | ||
return true; | ||
}; | ||
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/** | ||
* If we are not inside any sort of math block, this will add a math element to the editor | ||
* If we are inside a math block of the same type, this will 'undo' it (make it a paragraph). | ||
* If we are inside a math block of the other type, this will transform it to the other type | ||
* (i.e. block <-> inline) | ||
*/ | ||
const createMathToggle = (state: EditorState, type: MathType, dispatch?: Dispatch) => { | ||
// Q: should this ever return false? (when can this func not be run?) | ||
const { node } = state.selection as NodeSelection; | ||
const isActive = node && node.type.name === type; | ||
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const other = type === "math_inline" ? "math_display" : "math_inline"; | ||
const isOther = node && node.type.name === other; | ||
if (dispatch) { | ||
if (isOther) { | ||
toggleInlineOrBlock(state, dispatch); | ||
} else { | ||
if (!isActive) { | ||
// Insert a new math block | ||
insertNodeIntoEditor(state, dispatch, type); | ||
} else { | ||
const transaction = state.tr.replaceSelectionWith( | ||
state.schema.nodes.paragraph.create({}, node.content), | ||
true | ||
); | ||
dispatch(transaction); | ||
} | ||
} | ||
} | ||
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return true; | ||
}; | ||
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const isMathActive = (state: EditorState, type: MathType) => { | ||
const { node } = state.selection as NodeSelection; | ||
return node && node.type.name === type; | ||
}; | ||
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export const mathToggleInline = createCommandSpec((dispatch, state) => ({ | ||
run: () => createMathToggle(state, "math_inline", dispatch), | ||
canRun: createMathToggle(state, "math_inline"), | ||
isActive: isMathActive(state, "math_inline"), | ||
})); | ||
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export const mathToggleBlock = createCommandSpec((dispatch, state) => ({ | ||
run: () => createMathToggle(state, "math_display", dispatch), | ||
canRun: createMathToggle(state, "math_display"), | ||
isActive: isMathActive(state, "math_display"), | ||
})); |
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