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3 years ago
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
var w3cKeyname = require('w3c-keyname');
var prosemirrorState = require('prosemirror-state');
var mac = typeof navigator != "undefined" ? /Mac|iP(hone|[oa]d)/.test(navigator.platform) : false;
function normalizeKeyName(name) {
var parts = name.split(/-(?!$)/),
result = parts[parts.length - 1];
if (result == "Space") result = " ";
var alt, ctrl, shift, meta;
for (var i = 0; i < parts.length - 1; i++) {
var mod = parts[i];
if (/^(cmd|meta|m)$/i.test(mod)) meta = true;else if (/^a(lt)?$/i.test(mod)) alt = true;else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;else if (/^s(hift)?$/i.test(mod)) shift = true;else if (/^mod$/i.test(mod)) {
if (mac) meta = true;else ctrl = true;
} else throw new Error("Unrecognized modifier name: " + mod);
}
if (alt) result = "Alt-" + result;
if (ctrl) result = "Ctrl-" + result;
if (meta) result = "Meta-" + result;
if (shift) result = "Shift-" + result;
return result;
}
function normalize(map) {
var copy = Object.create(null);
for (var prop in map) {
copy[normalizeKeyName(prop)] = map[prop];
}
return copy;
}
function modifiers(name, event, shift) {
if (event.altKey) name = "Alt-" + name;
if (event.ctrlKey) name = "Ctrl-" + name;
if (event.metaKey) name = "Meta-" + name;
if (shift !== false && event.shiftKey) name = "Shift-" + name;
return name;
}
function keymap(bindings) {
return new prosemirrorState.Plugin({
props: {
handleKeyDown: keydownHandler(bindings)
}
});
}
function keydownHandler(bindings) {
var map = normalize(bindings);
return function (view, event) {
var name = w3cKeyname.keyName(event),
isChar = name.length == 1 && name != " ",
baseName;
var direct = map[modifiers(name, event, !isChar)];
if (direct && direct(view.state, view.dispatch, view)) return true;
if (isChar && (event.shiftKey || event.altKey || event.metaKey || name.charCodeAt(0) > 127) && (baseName = w3cKeyname.base[event.keyCode]) && baseName != name) {
var fromCode = map[modifiers(baseName, event, true)];
if (fromCode && fromCode(view.state, view.dispatch, view)) return true;
} else if (isChar && event.shiftKey) {
var withShift = map[modifiers(name, event, true)];
if (withShift && withShift(view.state, view.dispatch, view)) return true;
}
return false;
};
}
exports.keydownHandler = keydownHandler;
exports.keymap = keymap;