Merge from /joseeight/ninja-internal/tree/FileIO

Signed-off-by: Ananya Sen <Ananya.Sen@motorola.com>

1 files changed, 360 insertions, 0 deletions

diff --git a/js/components/hintable.reel/hintable.js b/js/components/hintable.reel/hintable.js
new file mode 100644
index 00000000..79813c92
--- /dev/null
+++ b/js/components/hintable.reel/hintable.js
@@ -0,0 +1,360 @@
+/* ComputedStyleSubPanel.js */
+var Montage   = require("montage").Montage,
+    Component = require("montage/ui/component").Component,
+    Editable  = require("js/components/editable.reel").Editable;
+
+
+/*
+
+EDITABLE - Methods
+- startEdit
+- stopEdit
+- value
+- 
+- _suggest
+- _suggestNext
+- _suggestPrev
+- _clearSuggest
+- _accept
+- _revert
+- _setCaret
+
+*/
+
+
+exports.Hintable = Montage.create(Editable, {
+    inheritsFrom : { value : Editable },
+    _matchIndex  : { value : 0 },
+    matches      : { value : [] },
+    
+    _hint : { value : null },
+    hint : {
+        get : function() {
+            return this._hint;
+        },
+        set : function(hint) {
+            hint = hint || '';
+            
+            ///// Set the hint element's text
+            this._getFirstTextNode(this.hintElement).textContent = hint;
+            ///// if hintElement was removed from the DOM, the object still
+            ///// exists, so it needs to be re-appended
+            if(this.hintElement.parentNode === null) {
+                this._element.appendChild(this.hintElement);
+            }
+
+            this._hint = hint;
+        }
+    },
+    
+    _hintElement : { value : null },
+    hintElement : {
+        get : function() {
+            if(!this._hintElement) {
+                /// Remove the phantom "<BR>" element that is generated when 
+                /// content editable element is empty
+                this._children(this._element, function(item) { 
+                    return item.nodeName === 'BR';
+                }).forEach(function(item) {
+                    this._element.removeChild(item);
+                }, this);
+
+                this._hintElement = document.createElement('span');
+                this._hintElement.classList.add(this.hintClass);
+                
+                this._element.appendChild(this._hintElement);
+            }
+            
+            return this._hintElement;
+        },
+        set : function(el) {
+            this._hintElement = el;
+        }
+    },
+    
+    _getHintDifference : {
+        value : function() {
+            if(!this.matches[this._matchIndex]) {
+                debugger;
+            }
+            return this.matches[this._matchIndex].substr(this.value.length);
+        }
+    },
+    
+    hintNext : {
+        value : function(e) {
+            if(e) { e.preventDefault(); }
+                console.log('next1');
+            
+            if(this._matchIndex < this.matches.length - 1) {
+                console.log('next');
+                ++this._matchIndex;
+                this.hint = this._getHintDifference();
+            }
+        }
+    },
+    hintPrev : {
+        value : function(e) {
+            if(e) { e.preventDefault(); }
+                console.log('prev1');
+            if(this._matchIndex !== 0) {
+                console.log('prev');
+                --this._matchIndex;
+                this.hint = this._getHintDifference();
+            }
+        }
+    },
+
+    accept : {
+        value: function(e, preserveCaretPosition) {
+            if(e) {
+                e.preventDefault();
+            }
+            var fullText = this._hint;
+            this.hint = null;
+            this.value += fullText;
+            
+            if(!preserveCaretPosition) {
+                this.setCursor('end');
+            }
+
+            this._sendEvent('accept');
+        }
+    },
+    revert : {
+        value : function(e, forceRevert) {
+            this.hint = null;
+            
+            if(this.isEditable || forceRevert) {
+                /// revert to old value
+                this.value = (this._preEditValue);
+                this._sendEvent('revert');
+                console.log('reverting');
+                
+            }
+        }
+    },
+    value : {
+        get: function() {
+            return this._getFirstTextNode().textContent;
+        },
+        set: function(str) {
+            var node = this._getFirstTextNode();
+            node.textContent = str;
+        }
+    },
+
+    handleKeydown : {
+        value : function handleKeydown(e) {
+            var k = e.keyCode,
+                isCaretAtEnd, selection, text;
+                
+            this._super(arguments);
+            
+            if(k === 39) {
+                selection = window.getSelection();
+                text = selection.baseNode.textContent;
+                isCaretAtEnd = (selection.anchorOffset === text.length);
+            }
+            
+            if(this.hint && isCaretAtEnd) {
+                ///// Advance the cursor
+                this.hint = this.hint.substr(0, 1);
+                this.accept(e);
+                this.handleInput();
+            }
+            
+            this._execKeyAction(e);
+        }
+    },
+    ///// Text input has changed values
+    handleInput : {
+        value : function handleInput(e) {
+            this._super(arguments);
+            
+            var val = this.value,
+                 matches, hint;
+            console.log('val = "' + val + '"');
+            //// Handle auto-suggest if configured
+            if(this.hints instanceof Array) {
+
+                if(val.length > 0) { // content is not empty
+                    
+                    this._matchIndex = 0;                    
+                    this.matches = this.hints.filter(function(h) {
+                        return h.indexOf(val) === 0;
+                    }).sort();
+                    
+                    ///// If there are no matches, or the new value doesn't match all the
+                    ///// previous matches, then get new list of matches
+                    if(!this.matches.length || !this._matchesAll(val)) {
+                    }
+                    
+                    if(this.matches.length) { // match(es) found
+                        if(this.matches[this._matchIndex] !== val) {
+                            // Suggest the matched hint, subtracting the typed-in string
+                            // Only if the hint is not was the user has typed already
+                            this.hint = this._getHintDifference();
+                        } else {
+                            this.hint = null;                            
+                        }
+                    } else { // no matches found
+                        this.hint = null;
+                    }
+                } else { // no suggestion for empty string
+                    this.hint = null;
+                }
+
+            }
+        }
+    },
+    handleBackspace : {
+        value : function(e) {
+            this.matches.length = 0;
+        }
+    },
+    _matchesAll : {
+        value : function(value) {
+            return this.matches.every(function(match) {
+                return match.indexOf(value) === 0;
+            }, this);
+        }
+    },
+    _execKeyAction : {
+        value : function(e) {
+            var key = e.keyCode,
+                keys = this.keyActions;
+            
+            if(this.hint) {
+                if( keys.hint.revert.indexOf(key) !== -1 ) { this.revert(e); }
+                if( keys.hint.accept.indexOf(key) !== -1 ) { this.accept(e); }