Sha256: 32175032d7bf3a021142b7fb5267843175b791f267ca7a99e9d58baec45a98af
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Versions: 7
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Contents
// Highlighting text that matches the selection
//
// Defines an option highlightSelectionMatches, which, when enabled,
// will style strings that match the selection throughout the
// document.
//
// The option can be set to true to simply enable it, or to a
// {minChars, style} object to explicitly configure it. minChars is
// the minimum amount of characters that should be selected for the
// behavior to occur, and style is the token style to apply to the
// matches. This will be prefixed by "cm-" to create an actual CSS
// class name.
(function() {
var DEFAULT_MIN_CHARS = 2;
var DEFAULT_TOKEN_STYLE = "matchhighlight";
function State(options) {
this.minChars = typeof options == "object" && options.minChars || DEFAULT_MIN_CHARS;
this.style = typeof options == "object" && options.style || DEFAULT_TOKEN_STYLE;
this.overlay = null;
}
CodeMirror.defineOption("highlightSelectionMatches", false, function(cm, val, old) {
var prev = old && old != CodeMirror.Init;
if (val && !prev) {
cm._matchHighlightState = new State(val);
cm.on("cursorActivity", highlightMatches);
} else if (!val && prev) {
var over = cm._matchHighlightState.overlay;
if (over) cm.removeOverlay(over);
cm._matchHighlightState = null;
cm.off("cursorActivity", highlightMatches);
}
});
function highlightMatches(cm) {
cm.operation(function() {
var state = cm._matchHighlightState;
if (state.overlay) {
cm.removeOverlay(state.overlay);
state.overlay = null;
}
if (!cm.somethingSelected()) return;
var selection = cm.getSelection().replace(/^\s+|\s+$/g, "");
if (selection.length < state.minChars) return;
cm.addOverlay(state.overlay = makeOverlay(selection, state.style));
});
}
function makeOverlay(query, style) {
return {token: function(stream) {
if (stream.match(query)) return style;
stream.next();
stream.skipTo(query.charAt(0)) || stream.skipToEnd();
}};
}
})();
Version data entries
7 entries across 7 versions & 3 rubygems