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Update to support shortcuts which can add or delete symbol surround text

This commit is contained in:
Wu Cheng-Han 2016-09-18 16:35:24 +08:00
parent f1c9874ed0
commit 591134007c
1 changed files with 84 additions and 0 deletions
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84
public/js/index.js
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@ -50,9 +50,93 @@ var defaultExtraKeys = {
"Ctrl-C": function (cm) {
if (!mac && cm.getOption('keyMap').substr(0, 3) === 'vim') document.execCommand("copy");
else return CodeMirror.Pass;
},
"Ctrl-*": function (cm) {
wrapTextWith(cm, '*');
},
"Shift-Ctrl-8": function (cm) {
wrapTextWith(cm, '*');
},
"Ctrl-_": function (cm) {
wrapTextWith(cm, '_');
},
"Shift-Ctrl--": function (cm) {
wrapTextWith(cm, '_');
},
"Ctrl-~": function (cm) {
wrapTextWith(cm, '~');
},
"Shift-Ctrl-`": function (cm) {
wrapTextWith(cm, '~');
},
"Ctrl-^": function (cm) {
wrapTextWith(cm, '^');
},
"Shift-Ctrl-6": function (cm) {
wrapTextWith(cm, '^');
},
"Ctrl-+": function (cm) {
wrapTextWith(cm, '+');
},
"Shift-Ctrl-=": function (cm) {
wrapTextWith(cm, '+');
},
"Ctrl-=": function (cm) {
wrapTextWith(cm, '=');
},
"Shift-Ctrl-Backspace": function (cm) {
wrapTextWith(cm, 'Backspace');
}
};
var wrapSymbols = ['*', '_', '~', '^', '+', '='];
function wrapTextWith(cm, symbol) {
if (!cm.getSelection()) {
return CodeMirror.Pass;
} else {
var ranges = cm.listSelections();
for (var i = 0; i < ranges.length; i++) {
var range = ranges[i];
if (!range.empty()) {
var from = range.from(), to = range.to();
if (symbol !== 'Backspace') {
cm.replaceRange(symbol, to, to, '+input');
cm.replaceRange(symbol, from, from, '+input');
// workaround selection range not correct after add symbol
var _ranges = cm.listSelections();
var anchorIndex = editor.indexFromPos(_ranges[i].anchor);
var headIndex = editor.indexFromPos(_ranges[i].head);
if (anchorIndex > headIndex) {
_ranges[i].anchor.ch--;
} else {
_ranges[i].head.ch--;
}
cm.setSelections(_ranges);
} else {
var preEndPos = {
line: to.line,
ch: to.ch + 1
};
var preText = cm.getRange(to, preEndPos);
var preIndex = wrapSymbols.indexOf(preText);
var postEndPos = {
line: from.line,
ch: from.ch - 1
};
var postText = cm.getRange(postEndPos, from);
var postIndex = wrapSymbols.indexOf(postText);
// check if surround symbol are list in array and matched
if (preIndex > -1 && postIndex > -1 && preIndex === postIndex) {
cm.replaceRange("", to, preEndPos, '+delete');
cm.replaceRange("", postEndPos, from, '+delete');
}
}
}
}
}
}
var idleTime = 300000; //5 mins
var updateViewDebounce = 200;
var cursorMenuThrottle = 50;