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(function() {
CodeMirror.simpleHint = function(editor, getHints, givenOptions) {
// Determine effective options based on given values and defaults.
var options = {}, defaults = CodeMirror.simpleHint.defaults;
for (var opt in defaults)
if (defaults.hasOwnProperty(opt))
options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt];
function collectHints(previousToken) {
// We want a single cursor position.
if (editor.somethingSelected()) return;
var tempToken = editor.getTokenAt(editor.getCursor());
// Don't show completions if token has changed and the option is set.
if (options.closeOnTokenChange && previousToken != null &&
(tempToken.start != previousToken.start || tempToken.className != previousToken.className)) {
return;
}
var result = getHints(editor);
if (!result || !result.list.length) return;
var completions = result.list;
function insert(str) {
editor.replaceRange(str, result.from, result.to);
}
// When there is only one completion, use it directly.
if (options.completeSingle && completions.length == 1) {
insert(completions[0]);
return true;
}
// Build the select widget
var complete = document.createElement("div");
complete.className = "CodeMirror-completions";
var sel = complete.appendChild(document.createElement("select"));
// Opera doesn't move the selection when pressing up/down in a
// multi-select, but it does properly support the size property on
// single-selects, so no multi-select is necessary.
if (!window.opera) sel.multiple = true;
for (var i = 0; i < completions.length; ++i) {
var opt = sel.appendChild(document.createElement("option"));
opt.appendChild(document.createTextNode(completions[i]));
}
sel.firstChild.selected = true;
sel.size = Math.min(10, completions.length);
var pos = options.alignWithWord ? editor.charCoords(result.from) : editor.cursorCoords();
complete.style.left = pos.x + "px";
complete.style.top = pos.yBot + "px";
document.body.appendChild(complete);
// If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
var winW = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
if(winW - pos.x < sel.clientWidth)
complete.style.left = (pos.x - sel.clientWidth) + "px";
// Hack to hide the scrollbar.
if (completions.length <= 10)
complete.style.width = (sel.clientWidth - 1) + "px";
var done = false;
function close() {
if (done) return;
done = true;
complete.parentNode.removeChild(complete);
}
function pick() {
insert(completions[sel.selectedIndex]);
close();
setTimeout(function(){editor.focus();}, 50);
}
CodeMirror.connect(sel, "blur", close);
CodeMirror.connect(sel, "keydown", function(event) {
var code = event.keyCode;
// Enter
if (code == 13) {CodeMirror.e_stop(event); pick();}
// Escape
else if (code == 27) {CodeMirror.e_stop(event); close(); editor.focus();}
else if (code != 38 && code != 40 && code != 33 && code != 34 && !CodeMirror.isModifierKey(event)) {
close(); editor.focus();
// Pass the event to the CodeMirror instance so that it can handle things like backspace properly.
editor.triggerOnKeyDown(event);
// Don't show completions if the code is backspace and the option is set.
if (!options.closeOnBackspace || code != 8) {
setTimeout(function(){collectHints(tempToken);}, 50);
}
}
});
CodeMirror.connect(sel, "dblclick", pick);
sel.focus();
// Opera sometimes ignores focusing a freshly created node
if (window.opera) setTimeout(function(){if (!done) sel.focus();}, 100);
return true;
}
return collectHints();
};
CodeMirror.simpleHint.defaults = {
closeOnBackspace: true,
closeOnTokenChange: false,
completeSingle: true,
alignWithWord: true
};
})();