botanjs/src/Astro/Blog/AstroEdit/SmartInput/_this.js
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(function(){
var ns = __namespace( "Astro.Blog.AstroEdit" );
/** @type {typeof Dandelion} */
var Dand = __import( "Dandelion" );
/** @type {function(...?): Dandelion.IDOMElement} */
var IDOMElement = __import( "Dandelion.IDOMElement" );
/** @type {typeof Dandelion.IDOMObject} */
var IDOMObject = __import( "Dandelion.IDOMObject" );
/** @type {System.Cycle} */
var Cycle = __import( "System.Cycle" );
/** @type {System.Debug} */
var debug = __import( "System.Debug" );
/** @type {System.Net.ClassLoader} */
var Loader = __import( "System.Net.ClassLoader" );
/** @type {System.utils} */
var utils = __import( "System.utils" );
/** @type {typeof System.utils.DataKey} */
var DataKey = __import( "System.utils.DataKey" );
/** @type {typeof System.utils.IKey} */
var IKey = __import( "System.utils.IKey" );
/** @type {typeof Components.MessageBox} */
var MessageBox = __import( "Components.MessageBox" );
/** @type {Astro.Blog.Config} */
var Config = __import( "Astro.Blog.Config" );
var moduleNs = "Astro.Blog.AstroEdit.SmartInput.CandidateAction.";
var service_uri = Config.get( "ServiceUri" );
var code;
var Destructor = function( target )
{
this.target = target;
this.target.Disposed = false;
this.destructSequence = [];
};
Destructor.prototype.Register = function( destruct )
{
this.destructSequence.push( destruct );
};
Destructor.prototype.Destruct = function()
{
for( var i in this.destructSequence )
{
this.destructSequence[i]();
}
this.target.Disposed = true;
this.destructSequence = null;
};
var KeyHandler = function( sender, handler )
{
return function( e )
{
e = e || window.event;
if ( e.keyCode ) code = e.keyCode;
else if ( e.which ) code = e.which;
handler( sender, e );
};
};
// {{{ Candidates Class
var Candidates = function( title, desc, defs )
{
this.title = title;
this.desc = desc;
this.__cands = [];
/** @type Array<Astro.Blog.AstroEdit.SmartInput.Definition> */
this.__defs = defs || {};
this.Empty = !defs;
};
Candidates.prototype.Get = function()
{
if( this.__cands.length ) return this.__cands;
for( var i in this.__defs )
{
var c = this.__defs[i];
this.__cands.push( Dand.wrapc( "cn", [ i, Dand.wrapc( "desc", c.desc ) ], new DataKey( "key", i ) ) );
}
return this.__cands;
};
Candidates.prototype.Reset = function()
{
var Cands = this.Get();
for( var i in Cands )
{
var c = IDOMElement( Cands[i] );
c.setAttribute( new DataKey( "selected", 0 ) );
}
};
Candidates.prototype.Filtered = function()
{
var Cands = this.Get();
var selected = [];
for( var i in Cands )
{
var c = IDOMElement( Cands[i] );
c.setAttribute( new DataKey( "selected", 0 ) );
if( c.style.display != "none" )
{
selected.push( c );
}
}
return selected;
};
Candidates.prototype.Selected = function()
{
var Cands = this.Get();
for( var i in Cands )
{
var c = IDOMElement( Cands[i] );
if( c.getDAttribute( "selected" ) == "1" )
{
return c;
}
}
return null;
};
// }}}
/** @param {Astro.Blog.AstroEdit.Visualizer} visualizer */
var SmartInput = function( visualizer )
{
this.Present = false;
var destructor = new Destructor( this );
var _self = this;
var insert = function() { return Dand.textNode( "" ); };
var ModLevels = [];
var BindingBox = null;
ModLevels.Cands = function() { return ModLevels[0][0]; };
ModLevels.Action = function() { return ModLevels[0][1]; };
ModLevels.Retreat = function() { return ModLevels[0][2]; };
var __title = null;
var title = function( reload )
{
if( !reload && __title ) return __title;
var l = ModLevels.length - 1;
var t = ModLevels[ l ][0].title;
for( var i = 0; i < l; i ++ )
{
var Mod = ModLevels[i];
t = t + " > " + Mod[0].title;
}
if( __title )
{
__title.textContent = t;
}
else
{
__title = Dand.wrape( t );
}
return __title;
};
var __stage = null;
var stage = function( incoming )
{
if( __stage )
{
if( incoming )
{
IDOMElement( __stage[1] ).clear();
var ThisCands = ModLevels.Cands().Get();
if( ThisCands.length )
{
IDOMElement( __stage[1] ).loot( Dand.wrape( ThisCands ) );
}
}
return __stage;
}
var Cands = ModLevels.Cands();
var Command = Dand.wrap(
"input", null, "v_snippet_input_single"
, null, IKey.quickDef( "type", "text", "placeholder", Cands.desc, "value", "`" )
);
var CandList = Dand.wrap( "div", null, "compx smartbar-candidates", Cands.Get() );
Command.selectionStart = Command.selectionEnd = 1;
return __stage = [ Command, CandList ];
};
var CandidateCycle = -1;
var KeywordTyped = 0;
var shiftTabbed = false;
var HandleInput = function( sender, e )
{
// Don't handle if holding shift or ctrl key
if( e.shiftKey || e.ctrlKey )
{
// Except the Shift + Tab, we need to cycle this
shiftTabbed = e.shiftKey && e.keyCode == 9;
if( !shiftTabbed ) return;
}
switch( e.keyCode )
{
case 192: // `
// If we are not are the first level, do nothing
if( 1 < ModLevels.length ) break;
// Closing the quote, that means this is a block-quoted text
e.preventDefault();
insert = undefined;
// Hitting ` twice escapes the ` character itself
var v = sender.value.substr( 1 );
if( v == "" )
{
insert = function() { return Dand.textNode( "`" ); };
BindingBox.close( true );
break;
}
BindingBox.close();
// Insert the code snippet with inline flag
visualizer.insertSnippet( "code", { "inline": "on", "lang": "plain", "value": v } );
break;
case 13: // Enter
// Not closing the quote, either a direct text or the first matched action
e.preventDefault();
// No candidates, directly pass the input text to the processor
if( ModLevels.Cands().Empty && 1 < ModLevels.length )
{
ModLevels.Action()( sender.value.substr( 1 ) );
BindingBox.close();
break;
}
var selected = ModLevels.Cands().Selected();
// Check if matched an action first
if( selected )
{
insert = undefined;
var close = ModLevels.Action()( selected.getDAttribute( "key" ) );
if( close ) BindingBox.close();
}
else
{
// Insert this text directly
var v = Dand.textNode( sender.value.substr( 1 ) );
insert = function() { return v; };
BindingBox.close( true );
}
break;
case 27: // Esc
BindingBox.close();
break;
case 9: // Tab
// Hitting tab will cycle around the candidates
e.preventDefault();
var c = ModLevels.Cands().Filtered();
var l = c.length;
if( !l ) break;
CandidateCycle += e.shiftKey ? -1 : 1;
if( CandidateCycle == l )
{
CandidateCycle = 0;
}
else if( CandidateCycle == -1 )
{
CandidateCycle = c.length - 1;
}
var ThisCandidate = c[ CandidateCycle ];
ThisCandidate.setAttribute( new DataKey( "selected", 1 ) );
var CyclingKeyword = ThisCandidate.getDAttribute( "key" );
sender.value = "`" + CyclingKeyword;
// Check if only 1 matched
if( c.length == 1 && KeywordTyped == sender.value.length )
{
insert = undefined;
ModLevels.Action()( ThisCandidate.getDAttribute( "key" ) );
break;
}
sender.setSelectionRange( KeywordTyped, sender.value.length );
break;
default:
ModLevels.Cands().Filtered();
CandidateCycle = -1;
}
};
var TestEmpty = function( sender, e )
{
if( ModLevels.Retreat()( sender, e ) )
{
_self.RetreatLevel( sender );
if( !ModLevels.length ) return;
}
// Search exact matched Candidates
switch( e.keyCode )
{
case 9: // Tab, do nothing
break;
case 16: // Shift, check if shiftTabbed
if( shiftTabbed )
{
shiftTabbed = false;
break;
}
default:
if( CandidateCycle == -1 )
{
KeywordTyped = sender.value.length;
}
var c = ModLevels.Cands().Get();
var keyword = sender.value.substr( 1 );
for( var i in c )
{
var Cand = IDOMElement( c[i] );
var t = Cand.getDAttribute( "key" );
Cand.style.display = t.match( new RegExp( keyword, "i" ) ) ? "" : "none";
// Highlight the exact match
if( t.match( new RegExp( "^" + keyword + "$", "i" ) ) )
{
Cand.setAttribute( new DataKey( "selected", 1 ) );
}
}
}
};
var ClosePanel = function( confirmed )
{
visualizer.restoreSelection();
if( confirmed && insert != undefined )
visualizer.insertAtCaret( insert() );
// Posponing this prevents the BackQuoteBinding firing
Cycle.next( function() {
_self.Present = false;
destructor.Destruct();
} );
};
// Advance the input level by CandidateAction
this.advanceLevel = function( Candidates, Action, Retreat )
{
if( ModLevels.length )
{
ModLevels[0].selected = ModLevels.Cands().Selected().getDAttribute( "key" );
}
ModLevels.unshift([ Candidates, Action, Retreat ]);
if( 1 < ModLevels.length )
{
CandidateCycle = -1;
stage( Candidates );
title( true );
stage()[0].value = "`";
stage()[0].setAttribute( "placeholder", ModLevels.Cands().desc );
BindingBox.show();
}
};
this.RetreatLevel = function( sender )
{
if( ModLevels.length == 1 )
{
BindingBox.close();
destructor.Destruct();
}
ModLevels.shift();
if( ModLevels.length )
{
var Cands = ModLevels.Cands();
var input = stage( Cands )[0];
title( true );
input.value
= "`" + Cands.Selected().getDAttribute( "key" );
input.setAttribute( "placeholder", Cands.desc );
input.selectionStart = 1;
input.selectionEnd = input.value.length;
BindingBox.show();
}
};
this.Show = function()
{
if( _self.Present ) return;
visualizer.saveSelection();
_self.Present = true;
var MsgBox = new MessageBox(
title()
, Dand.wrape( stage() )
, "Back", false
, ClosePanel
);
MsgBox.show();
var Command = stage()[0];
BindingBox = MsgBox;
Command.focus();
var DCommand = IDOMElement( Command );
var KDown = KeyHandler( Command, HandleInput );
var KUp = KeyHandler( Command, TestEmpty );
DCommand.addEventListener( "KeyDown", KDown );
DCommand.addEventListener( "KeyUp", KUp );
destructor.Register( function() {
DCommand.removeEventListener( "KeyDown", KDown );
DCommand.removeEventListener( "KeyUp", KUp );
} );
};
};
var MasterInput = function( visualizer )
{
var Cands = {
"Article Reference": { module: "ArticleReference", desc: "Links to other article" }
, "Article Content": { module: "ArticleContent", desc: "Put contents of an article" }
, "facts": { module: "Facts", desc: "Facts, a fact bubble popup when mouseover" }
, "footnote": { module: "Footnote", desc: "Footnote, a footnote displayed at the end of article" }
, "h1": { module: "Heading", options: 1, desc: "Heading, size 1" }
, "h2": { module: "Heading", options: 2, desc: "Heading, size 2" }
, "h3": { module: "Heading", options: 3, desc: "Heading, size 3" }
, "h4": { module: "Heading", options: 4, desc: "Heading, size 4" }
, "h5": { module: "Heading", options: 5, desc: "Heading, size 5" }
};
var LoadModule = function( mod )
{
var ldr = new Loader( service_uri, "o" );
var ModItem = Cands[ mod ];
ldr.load( moduleNs + ModItem.module, function( e ) { ModuleLoaded( mod, e ); } );
};
var InputBox = null;
var ModuleLoaded = function( sender, e )
{
/** @type {Astro.Blog.AstroEdit.SmartInput.ICandidateAction} */
var module = new ( __import( e ) )( visualizer, sender );
var ModItem = Cands[ sender ];
module.GetCandidates( function( x ) {
InputBox.advanceLevel(
new Candidates( ModItem.module, ModItem.desc, x )
, module.Process.bind( module )
, module.Retreat.bind( module )
);
} );
};
var BackQuoteBinding = function ( sender, e )
{
if( !InputBox || InputBox.Disposed )
{
InputBox = new SmartInput( visualizer );
InputBox.advanceLevel(
// First level Candidates
new Candidates( "Quick Access", "Keyword", Cands )
, LoadModule
, function( sender, e ) { return sender.value == ""; }
);
}
if( !InputBox.Present && code == 192 )
{
e.preventDefault();
InputBox.Show();
}
};
new IDOMObject( document ).addEventListener( "KeyDown", KeyHandler( document, BackQuoteBinding ), false );
};
ns[ NS_EXPORT ]( EX_CLASS, "SmartInput", MasterInput );
})();