ckeditor4/samples/toolbarconfigurator/lib/codemirror/show-hint.js

JavaScript WYSIWYG web text editor.

(function(g){"object"==typeof exports&&"object"==typeof module?g(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],g):g(CodeMirror)})(function(g){function t(a,b){this.cm=a;this.options=b;this.widget=null;this.tick=this.debounce=0;this.startPos=this.cm.getCursor("start");this.startLen=this.cm.getLine(this.startPos.line).length-this.cm.getSelection().length;if(this.options.updateOnCursorActivity){var c=this;a.on("cursorActivity",this.activityFunc=
function(){c.cursorActivity()})}}function D(a,b){function c(a,c){var e;e="string"!=typeof c?function(a){return c(a,b)}:d.hasOwnProperty(c)?d[c]:c;g[a]=e}var d={Up:function(){b.moveFocus(-1)},Down:function(){b.moveFocus(1)},PageUp:function(){b.moveFocus(-b.menuSize()+1,!0)},PageDown:function(){b.moveFocus(b.menuSize()-1,!0)},Home:function(){b.setFocus(0)},End:function(){b.setFocus(b.length-1)},Enter:b.pick,Tab:b.pick,Esc:b.close};/Mac/.test(navigator.platform)&&(d["Ctrl-P"]=function(){b.moveFocus(-1)},
d["Ctrl-N"]=function(){b.moveFocus(1)});var e=a.options.customKeys,g=e?{}:d;if(e)for(var f in e)e.hasOwnProperty(f)&&c(f,e[f]);if(e=a.options.extraKeys)for(f in e)e.hasOwnProperty(f)&&c(f,e[f]);return g}function B(a,b){for(;b&&b!=a;){if("LI"===b.nodeName.toUpperCase()&&b.parentNode==a)return b;b=b.parentNode}}function u(a,b){this.id="cm-complete-"+Math.floor(Math.random(1E6));this.completion=a;this.data=b;this.picked=!1;var c=this,d=a.cm,e=d.getInputField().ownerDocument,p=e.defaultView||e.parentWindow,
f=this.hints=e.createElement("ul");f.setAttribute("role","listbox");f.setAttribute("aria-expanded","true");f.id=this.id;f.className="CodeMirror-hints "+a.cm.options.theme;this.selectedHint=b.selectedHint||0;for(var q=b.list,h=0;h<q.length;++h){var n=f.appendChild(e.createElement("li")),k=q[h],l="CodeMirror-hint"+(h!=this.selectedHint?"":" CodeMirror-hint-active");null!=k.className&&(l=k.className+" "+l);n.className=l;h==this.selectedHint&&n.setAttribute("aria-selected","true");n.id=this.id+"-"+h;
n.setAttribute("role","option");k.render?k.render(n,b,k):n.appendChild(e.createTextNode(k.displayText||("string"==typeof k?k:k.text)));n.hintId=h}var m=a.options.container||e.body,h=d.cursorCoords(a.options.alignWithWord?b.from:null),x=h.left,y=h.bottom,t=!0,l=n=0;if(m!==e.body)var k=-1!==["absolute","relative","fixed"].indexOf(p.getComputedStyle(m).position)?m:m.offsetParent,l=k.getBoundingClientRect(),r=e.body.getBoundingClientRect(),n=l.left-r.left-k.scrollLeft,l=l.top-r.top-k.scrollTop;f.style.left=
x-n+"px";f.style.top=y-l+"px";k=p.innerWidth||Math.max(e.body.offsetWidth,e.documentElement.offsetWidth);r=p.innerHeight||Math.max(e.body.offsetHeight,e.documentElement.offsetHeight);m.appendChild(f);d.getInputField().setAttribute("aria-autocomplete","list");d.getInputField().setAttribute("aria-owns",this.id);d.getInputField().setAttribute("aria-activedescendant",this.id+"-"+this.selectedHint);var m=a.options.moveOnOverlap?f.getBoundingClientRect():new DOMRect,u=a.options.paddingForScrollbar?f.scrollHeight>
f.clientHeight+1:!1,v;setTimeout(function(){v=d.getScrollInfo()});if(0<m.bottom-r){var z=m.bottom-m.top,A=m.top-(h.bottom-h.top)-2;r-m.top<A?(z>A&&(f.style.height=(z=A)+"px"),f.style.top=(y=h.top-z)+l+"px",t=!1):f.style.height=r-m.top-2+"px"}l=m.right-k;u&&(l+=d.display.nativeBarWidth);0<l&&(m.right-m.left>k&&(f.style.width=k-5+"px",l-=m.right-m.left-k),f.style.left=(x=Math.max(h.left-l-n,0))+"px");if(u)for(h=f.firstChild;h;h=h.nextSibling)h.style.paddingRight=d.display.nativeBarWidth+"px";d.addKeyMap(this.keyMap=
D(a,{moveFocus:function(a,b){c.changeActive(c.selectedHint+a,b)},setFocus:function(a){c.changeActive(a)},menuSize:function(){return c.screenAmount()},length:q.length,close:function(){a.close()},pick:function(){c.pick()},data:b}));if(a.options.closeOnUnfocus){var w;d.on("blur",this.onBlur=function(){w=setTimeout(function(){a.close()},100)});d.on("focus",this.onFocus=function(){clearTimeout(w)})}d.on("scroll",this.onScroll=function(){var b=d.getScrollInfo(),c=d.getWrapperElement().getBoundingClientRect();
v||(v=d.getScrollInfo());var g=y+v.top-b.top,h=g-(p.pageYOffset||(e.documentElement||e.body).scrollTop);t||(h+=f.offsetHeight);if(h<=c.top||h>=c.bottom)return a.close();f.style.top=g+"px";f.style.left=x+v.left-b.left+"px"});g.on(f,"dblclick",function(a){(a=B(f,a.target||a.srcElement))&&null!=a.hintId&&(c.changeActive(a.hintId),c.pick())});g.on(f,"click",function(b){(b=B(f,b.target||b.srcElement))&&null!=b.hintId&&(c.changeActive(b.hintId),a.options.completeOnSingleClick&&c.pick())});g.on(f,"mousedown",
function(){setTimeout(function(){d.focus()},20)});h=this.getSelectedHintRange();0===h.from&&0===h.to||this.scrollToActive();g.signal(b,"select",q[this.selectedHint],f.childNodes[this.selectedHint]);return!0}function E(a,b){if(!a.somethingSelected())return b;for(var c=[],d=0;d<b.length;d++)b[d].supportsSelection&&c.push(b[d]);return c}function w(a,b,c,d){a.async?a(b,d,c):(a=a(b,c))&&a.then?a.then(d):d(a)}g.showHint=function(a,b,c){if(!b)return a.showHint(c);c&&c.async&&(b.async=!0);b={hint:b};if(c)for(var d in c)b[d]=
c[d];return a.showHint(b)};g.defineExtension("showHint",function(a){var b=this.getCursor("start"),c=this.options.hintOptions,d={},e;for(e in C)d[e]=C[e];if(c)for(e in c)void 0!==c[e]&&(d[e]=c[e]);if(a)for(e in a)void 0!==a[e]&&(d[e]=a[e]);d.hint.resolve&&(d.hint=d.hint.resolve(this,b));a=d;b=this.listSelections();if(!(1<b.length)){if(this.somethingSelected()){if(!a.hint.supportsSelection)return;for(e=0;e<b.length;e++)if(b[e].head.line!=b[e].anchor.line)return}this.state.completionActive&&this.state.completionActive.close();
b=this.state.completionActive=new t(this,a);b.options.hint&&(g.signal(this,"startCompletion",this),b.update(!0))}});g.defineExtension("closeHint",function(){this.state.completionActive&&this.state.completionActive.close()});var F=window.requestAnimationFrame||function(a){return setTimeout(a,1E3/60)},G=window.cancelAnimationFrame||clearTimeout;t.prototype={close:function(){this.active()&&(this.tick=this.cm.state.completionActive=null,this.options.updateOnCursorActivity&&this.cm.off("cursorActivity",
this.activityFunc),this.widget&&this.data&&g.signal(this.data,"close"),this.widget&&this.widget.close(),g.signal(this.cm,"endCompletion",this.cm))},active:function(){return this.cm.state.completionActive==this},pick:function(a,b){var c=a.list[b],d=this;this.cm.operation(function(){c.hint?c.hint(d.cm,a,c):d.cm.replaceRange("string"==typeof c?c:c.text,c.from||a.from,c.to||a.to,"complete");g.signal(a,"pick",c);d.cm.scrollIntoView()});this.options.closeOnPick&&this.close()},cursorActivity:function(){this.debounce&&
(G(this.debounce),this.debounce=0);var a=this.startPos;this.data&&(a=this.data.from);var b=this.cm.getCursor(),c=this.cm.getLine(b.line);if(b.line!=this.startPos.line||c.length-b.ch!=this.startLen-this.startPos.ch||b.ch<a.ch||this.cm.somethingSelected()||!b.ch||this.options.closeCharacters.test(c.charAt(b.ch-1)))this.close();else{var d=this;this.debounce=F(function(){d.update()});this.widget&&this.widget.disable()}},update:function(a){if(null!=this.tick){var b=this,c=++this.tick;w(this.options.hint,
this.cm,this.options,function(d){b.tick==c&&b.finishUpdate(d,a)})}},finishUpdate:function(a,b){this.data&&g.signal(this.data,"update");var c=this.widget&&this.widget.picked||b&&this.options.completeSingle;this.widget&&this.widget.close();(this.data=a)&&a.list.length&&(c&&1==a.list.length?this.pick(a,0):(this.widget=new u(this,a),g.signal(a,"shown")))}};u.prototype={close:function(){if(this.completion.widget==this){this.completion.widget=null;this.hints.parentNode&&this.hints.parentNode.removeChild(this.hints);
this.completion.cm.removeKeyMap(this.keyMap);var a=this.completion.cm.getInputField();a.removeAttribute("aria-activedescendant");a.removeAttribute("aria-owns");a=this.completion.cm;this.completion.options.closeOnUnfocus&&(a.off("blur",this.onBlur),a.off("focus",this.onFocus));a.off("scroll",this.onScroll)}},disable:function(){this.completion.cm.removeKeyMap(this.keyMap);var a=this;this.keyMap={Enter:function(){a.picked=!0}};this.completion.cm.addKeyMap(this.keyMap)},pick:function(){this.completion.pick(this.data,
this.selectedHint)},changeActive:function(a,b){a>=this.data.list.length?a=b?this.data.list.length-1:0:0>a&&(a=b?0:this.data.list.length-1);if(this.selectedHint!=a){var c=this.hints.childNodes[this.selectedHint];c&&(c.className=c.className.replace(" CodeMirror-hint-active",""),c.removeAttribute("aria-selected"));c=this.hints.childNodes[this.selectedHint=a];c.className+=" CodeMirror-hint-active";c.setAttribute("aria-selected","true");this.completion.cm.getInputField().setAttribute("aria-activedescendant",
c.id);this.scrollToActive();g.signal(this.data,"select",this.data.list[this.selectedHint],c)}},scrollToActive:function(){var a=this.getSelectedHintRange(),b=this.hints.childNodes[a.from],a=this.hints.childNodes[a.to],c=this.hints.firstChild;b.offsetTop<this.hints.scrollTop?this.hints.scrollTop=b.offsetTop-c.offsetTop:a.offsetTop+a.offsetHeight>this.hints.scrollTop+this.hints.clientHeight&&(this.hints.scrollTop=a.offsetTop+a.offsetHeight-this.hints.clientHeight+c.offsetTop)},screenAmount:function(){return Math.floor(this.hints.clientHeight/
this.hints.firstChild.offsetHeight)||1},getSelectedHintRange:function(){var a=this.completion.options.scrollMargin||0;return{from:Math.max(0,this.selectedHint-a),to:Math.min(this.data.list.length-1,this.selectedHint+a)}}};g.registerHelper("hint","auto",{resolve:function(a,b){var c=a.getHelpers(b,"hint"),d;if(c.length){var e=function(a,b,d){function e(c){if(c==g.length)return b(null);w(g[c],a,d,function(a){a&&0<a.list.length?b(a):e(c+1)})}var g=E(a,c);e(0)};e.async=!0;e.supportsSelection=!0;return e}return(d=
a.getHelper(a.getCursor(),"hintWords"))?function(a){return g.hint.fromList(a,{words:d})}:g.hint.anyword?function(a,b){return g.hint.anyword(a,b)}:function(){}}});g.registerHelper("hint","fromList",function(a,b){var c=a.getCursor(),d=a.getTokenAt(c),e=g.Pos(c.line,d.start);d.start<c.ch&&/\w/.test(d.string.charAt(c.ch-d.start-1))?d=d.string.substr(0,c.ch-d.start):(d="",e=c);for(var p=[],f=0;f<b.words.length;f++){var q=b.words[f];q.slice(0,d.length)==d&&p.push(q)}if(p.length)return{list:p,from:e,to:c}});
g.commands.autocomplete=g.showHint;var C={hint:g.hint.auto,completeSingle:!0,alignWithWord:!0,closeCharacters:/[\s()\[\]{};:>,]/,closeOnPick:!0,closeOnUnfocus:!0,updateOnCursorActivity:!0,completeOnSingleClick:!0,container:null,customKeys:null,extraKeys:null,paddingForScrollbar:!0,moveOnOverlap:!0};g.defineOption("hintOptions",null)});