Subversion-Projekte lars-tiefland.cienc

// CodeMirror, copyright (c) by Marijn Haverbeke and others

// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {

  if (typeof exports == "object" && typeof module == "object") // CommonJS

    mod(require("../../lib/codemirror"));

  else if (typeof define == "function" && define.amd) // AMD

    define(["../../lib/codemirror"], mod);

  else // Plain browser env

    mod(CodeMirror);

})(function(CodeMirror) {

  "use strict";

  var GUTTER_ID = "CodeMirror-lint-markers";

  function showTooltip(e, content) {

    var tt = document.createElement("div");

    tt.className = "CodeMirror-lint-tooltip";

    tt.appendChild(content.cloneNode(true));

    document.body.appendChild(tt);

    function position(e) {

      if (!tt.parentNode) return CodeMirror.off(document, "mousemove", position);

      tt.style.top = Math.max(0, e.clientY - tt.offsetHeight - 5) + "px";

      tt.style.left = (e.clientX + 5) + "px";

    }

    CodeMirror.on(document, "mousemove", position);

    position(e);

    if (tt.style.opacity != null) tt.style.opacity = 1;

    return tt;

  }

  function rm(elt) {

    if (elt.parentNode) elt.parentNode.removeChild(elt);

  }

  function hideTooltip(tt) {

    if (!tt.parentNode) return;

    if (tt.style.opacity == null) rm(tt);

    tt.style.opacity = 0;

    setTimeout(function() { rm(tt); }, 600);

  }

  function showTooltipFor(e, content, node) {

    var tooltip = showTooltip(e, content);

    function hide() {

      CodeMirror.off(node, "mouseout", hide);

      if (tooltip) { hideTooltip(tooltip); tooltip = null; }

    }

    var poll = setInterval(function() {

      if (tooltip) for (var n = node;; n = n.parentNode) {

        if (n && n.nodeType == 11) n = n.host;

        if (n == document.body) return;

        if (!n) { hide(); break; }

      }

      if (!tooltip) return clearInterval(poll);

    }, 400);

    CodeMirror.on(node, "mouseout", hide);

  }

  function LintState(cm, options, hasGutter) {

    this.marked = [];

    this.options = options;

    this.timeout = null;

    this.hasGutter = hasGutter;

    this.onMouseOver = function(e) { onMouseOver(cm, e); };

  }

  function parseOptions(_cm, options) {

    if (options instanceof Function) return {getAnnotations: options};

    if (!options || options === true) options = {};

    return options;

  }

  function clearMarks(cm) {

    var state = cm.state.lint;

    if (state.hasGutter) cm.clearGutter(GUTTER_ID);

    for (var i = 0; i < state.marked.length; ++i)

      state.marked[i].clear();

    state.marked.length = 0;

  }

  function makeMarker(labels, severity, multiple, tooltips) {

    var marker = document.createElement("div"), inner = marker;

    marker.className = "CodeMirror-lint-marker-" + severity;

    if (multiple) {

      inner = marker.appendChild(document.createElement("div"));

      inner.className = "CodeMirror-lint-marker-multiple";

    }

    if (tooltips != false) CodeMirror.on(inner, "mouseover", function(e) {

      showTooltipFor(e, labels, inner);

    });

    return marker;

  }

  function getMaxSeverity(a, b) {

    if (a == "error") return a;

    else return b;

  }

  function groupByLine(annotations) {

    var lines = [];

    for (var i = 0; i < annotations.length; ++i) {

      var ann = annotations[i], line = ann.from.line;

      (lines[line] || (lines[line] = [])).push(ann);

    }

    return lines;

  }

  function annotationTooltip(ann) {

    var severity = ann.severity;

    if (!severity) severity = "error";

    var tip = document.createElement("div");

    tip.className = "CodeMirror-lint-message-" + severity;

    tip.appendChild(document.createTextNode(ann.message));

    return tip;

  }

  function startLinting(cm) {

    var state = cm.state.lint, options = state.options;

    var passOptions = options.options || options; // Support deprecated passing of `options` property in options

    var getAnnotations = options.getAnnotations || cm.getHelper(CodeMirror.Pos(0, 0), "lint");

    if (!getAnnotations) return;

    if (options.async || getAnnotations.async)

      getAnnotations(cm.getValue(), updateLinting, passOptions, cm);

    else

      updateLinting(cm, getAnnotations(cm.getValue(), passOptions, cm));

  }

  function updateLinting(cm, annotationsNotSorted) {

    clearMarks(cm);

    var state = cm.state.lint, options = state.options;

    var annotations = groupByLine(annotationsNotSorted);

    for (var line = 0; line < annotations.length; ++line) {

      var anns = annotations[line];

      if (!anns) continue;

      var maxSeverity = null;

      var tipLabel = state.hasGutter && document.createDocumentFragment();

      for (var i = 0; i < anns.length; ++i) {

        var ann = anns[i];

        var severity = ann.severity;

        if (!severity) severity = "error";

        maxSeverity = getMaxSeverity(maxSeverity, severity);

        if (options.formatAnnotation) ann = options.formatAnnotation(ann);

        if (state.hasGutter) tipLabel.appendChild(annotationTooltip(ann));

        if (ann.to) state.marked.push(cm.markText(ann.from, ann.to, {

          className: "CodeMirror-lint-mark-" + severity,

          __annotation: ann

        }));

      }

      if (state.hasGutter)

        cm.setGutterMarker(line, GUTTER_ID, makeMarker(tipLabel, maxSeverity, anns.length > 1,

                                                       state.options.tooltips));

    }

    if (options.onUpdateLinting) options.onUpdateLinting(annotationsNotSorted, annotations, cm);

  }

  function onChange(cm) {

    var state = cm.state.lint;

    if (!state) return;

    clearTimeout(state.timeout);

    state.timeout = setTimeout(function(){startLinting(cm);}, state.options.delay || 500);

  }

  function popupSpanTooltip(ann, e) {

    var target = e.target || e.srcElement;

    showTooltipFor(e, annotationTooltip(ann), target);

  }

  function onMouseOver(cm, e) {

    var target = e.target || e.srcElement;

    if (!/\bCodeMirror-lint-mark-/.test(target.className)) return;

    var box = target.getBoundingClientRect(), x = (box.left + box.right) / 2, y = (box.top + box.bottom) / 2;

    var spans = cm.findMarksAt(cm.coordsChar({left: x, top: y}, "client"));

    for (var i = 0; i < spans.length; ++i) {

      var ann = spans[i].__annotation;

      if (ann) return popupSpanTooltip(ann, e);

    }

  }

  CodeMirror.defineOption("lint", false, function(cm, val, old) {

    if (old && old != CodeMirror.Init) {

      clearMarks(cm);

      if (cm.state.lint.options.lintOnChange !== false)

        cm.off("change", onChange);

      CodeMirror.off(cm.getWrapperElement(), "mouseover", cm.state.lint.onMouseOver);

      clearTimeout(cm.state.lint.timeout);

      delete cm.state.lint;

    }

    if (val) {

      var gutters = cm.getOption("gutters"), hasLintGutter = false;

      for (var i = 0; i < gutters.length; ++i) if (gutters[i] == GUTTER_ID) hasLintGutter = true;

      var state = cm.state.lint = new LintState(cm, parseOptions(cm, val), hasLintGutter);

      if (state.options.lintOnChange !== false)

        cm.on("change", onChange);

      if (state.options.tooltips != false)

        CodeMirror.on(cm.getWrapperElement(), "mouseover", state.onMouseOver);

      startLinting(cm);

    }

  });

  CodeMirror.defineExtension("performLint", function() {

    if (this.state.lint) startLinting(this);

  });

});