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(function(window, document) {
var CompletionDialog = function(options) { this.options = options; }
CompletionDialog.prototype = {
show: function() {
if (!this.isShown) {
this.isShown=true;
this.query = [];
if (!this.initialized) {
initialize.call(this);
this.initialized = true;
}
handlerStack.push({ keydown: this.onKeydown });
render.call(this);
clearInterval(this._tweenId);
this.container.style.display = "block";
this._tweenId = Tween.fade(this.container, 1.0, 150);
}
},
hide: function() {
if (this.isShown) {
handlerStack.pop();
this.isShown = false;
this.currentSelection = 0;
clearInterval(this._tweenId);
var completionContainer = this.container;
var cssHide = function() { completionContainer.style.display = "none"; }
this._tweenId = Tween.fade(this.container, 0, 150, cssHide);
}
},
getDisplayElement: function() {
if (!this.container)
this.container = createDivInside(document.body);
return this.container;
},
getQueryString: function() { return this.query.join(""); }
}
var initialize = function() {
var self = this;
self.currentSelection = 0;
self.onKeydown = function(event) {
var keyChar = getKeyChar(event);
// change selection with up or Shift-Tab
if (keyChar==="up" || (event.keyCode == 9 && event.shiftKey)) {
if (self.currentSelection>0) {
self.currentSelection-=1;
}
render.call(self,self.getQueryString(), self.completions);
}
// change selection with down or Tab
else if (keyChar==="down" || (event.keyCode == 9 && !event.shiftKey)) {
if (self.currentSelection < self.completions.length - 1) {
self.currentSelection += 1;
}
render.call(self,self.getQueryString(), self.completions);
}
else if (event.keyCode == keyCodes.enter) {
self.options.onSelect(self.completions[self.currentSelection]);
}
else if (event.keyCode == keyCodes.backspace || event.keyCode == keyCodes.deleteKey) {
if (self.query.length > 0) {
self.query.pop();
self.options.source(self.getQueryString(), function(completions) {
render.call(self, self.getQueryString(), completions);
})
}
}
else if (keyChar!=="left" && keyChar!="right") {
self.query.push(keyChar);
self.options.source(self.getQueryString(), function(completions) {
render.call(self, self.getQueryString(), completions);
});
}
event.stopPropagation();
event.preventDefault();
return true;
}
}
var render = function(searchString, completions) {
if (this.isShown) {
this.searchString = searchString;
this.completions = completions;
var container = this.getDisplayElement();
clearChildren(container);
container.style.display = "";
if (searchString === undefined) {
this.container.className = "vimiumReset vimium-dialog";
createDivInside(container).innerHTML = this.options.initialSearchText || "Begin typing";
}
else {
this.container.className = "vimiumReset vimium-dialog vimium-completions";
var searchBar = createDivInside(container);
searchBar.innerHTML=searchString;
searchBar.className="vimiumReset vimium-searchBar";
searchResults = createDivInside(container);
searchResults.className="vimiumReset vimium-searchResults";
if (completions.length<=0) {
var resultDiv = createDivInside(searchResults);
resultDiv.className="vimiumReset vimium-noResults";
resultDiv.innerHTML="No results found";
}
else {
for (var i = 0; i < completions.length; i++) {
var resultDiv = createDivInside(searchResults);
if (i === this.currentSelection) {
resultDiv.className="vimiumReset vimium-selected";
}
resultDiv.innerHTML=this.options.renderOption(searchString, completions[i]);
}
}
}
container.style.top = Math.max(0, (window.innerHeight/2-container.clientHeight/2)) + "px";
container.style.left = (window.innerWidth/2-container.clientWidth/2) + "px";
}
};
var createDivInside = function(parent) {
var element = document.createElement("div");
element.className = "vimiumReset";
parent.appendChild(element);
return element;
}
var clearChildren = function(elem) {
if (elem.hasChildNodes()) {
while (elem.childNodes.length >= 1) {
elem.removeChild(elem.firstChild);
}
}
}
window.CompletionDialog = CompletionDialog;
}(window, document))
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