From b89a7ee8b956c96a1dcee995ea840feddc5d4b27 Mon Sep 17 00:00:00 2001
From: Pierre Frisch
Date: Thu, 22 Dec 2011 07:25:50 -0800
Subject: First commit of Ninja to ninja-internal

Signed-off-by: Valerio Virgillito <rmwh84@motorola.com>
---
 js/mediators/drag-drop-mediator.js | 172 +++++++++++++++++++++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 js/mediators/drag-drop-mediator.js

(limited to 'js/mediators/drag-drop-mediator.js')

diff --git a/js/mediators/drag-drop-mediator.js b/js/mediators/drag-drop-mediator.js
new file mode 100644
index 00000000..07e4a50c
--- /dev/null
+++ b/js/mediators/drag-drop-mediator.js
@@ -0,0 +1,172 @@
+/* <copyright>
+ This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+ No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+ (c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+ </copyright> */
+
+var Montage     = require("montage/core/core").Montage,
+    Component   = require("montage/ui/component").Component,
+    NJUtils     = require("js/lib/NJUtils").NJUtils;
+
+exports.DragDropMediator = Montage.create(Component, {
+    dropTarget: {
+        value: null,
+        writable: true
+    },
+
+    baseX: {
+        value: null,
+        writable: true
+    },
+
+    baseY: {
+        value: null,
+        writable: true
+    },
+
+    deserializedFromTemplate: {
+        value: function() {
+            this.eventManager.addEventListener("appLoaded", this, false);
+        }
+    },
+
+    handleAppLoaded: {
+        value: function() {
+            this.dropTarget = this.application.ninja.stage.drawingCanvas;
+
+            this.dropTarget.addEventListener("dragover", this, false);
+            this.dropTarget.addEventListener("dragend", this, false);
+            this.dropTarget.addEventListener("drop", this, false);
+        }
+    },
+
+    handleEvent: {
+        value: function(event){
+            event.preventDefault();
+            event.stopImmediatePropagation();
+
+            switch(event.type) {
+                case "dragover":
+                    return false;
+                case "dragend":
+                    return false;
+                case "drop":
+                    this.handleDropEvent(event);
+                    break;
+                default:
+                    console.log("Default");
+                    break;
+            }
+        }
+    },
+
+    handleDropEvent: {
+        value: function(evt){
+            var xferString, component;
+
+            this.baseX = evt.offsetX - this.application.ninja.stage.userContentLeft;
+            this.baseY = evt.offsetY - this.application.ninja.stage.userContentTop;
+
+            xferString = evt.dataTransfer.getData("text/plain");
+            if(xferString) {
+
+                if(xferString.lastIndexOf("-Component") !== -1) {
+                    component = xferString.substring(0, xferString.lastIndexOf("-Component"));
+                    NJevent( "executeAddComponent", { "component": component, "dropX": this.baseX, "dropY": this.baseY });
+//                    ComponentPanelModule.ComponentsPanelBase.addComponentToStage(componentStr.substring(0, compInd), this.baseX, this.baseY);
+                }
+                return;
+            }
+
+            // Verify that browser supports FileReader API.
+            if (typeof(window.FileReader) === "undefined") {
+                alert("File API and FileReader APIs are not supported.");
+                // Exit function since there isn't anything else we can do.
+                return;
+            }
+
+            var file;
+            const files = evt.dataTransfer.files;
+            var idx;
+            const len = files.length;
+
+
+            // Loop over all dragged files...
+            for (idx = 0; idx < len; idx++) {
+                file = files[idx];
+                // Only do anything if the current file is an image (or has an image mime-type.
+                if (file.type.match("^image/")) {
+                    var reader = new FileReader();
+                    // Create a LoadHandler to access each outer file var
+                    reader.onload = this.createLoadHandler(file, this.baseX, this.baseY);
+
+                    if(file.type.match("^image/svg\\+xml")) {// this is SVG
+                        reader.readAsText(file);
+                    } else{
+                        reader.readAsDataURL(file);
+                    }
+                    
+                }
+            }
+
+            return false;
+        }
+    },
+
+    createLoadHandler: {
+        value: function(file, baseX, baseY) {
+            return function(evt2) {
+                var domElem = null;
+
+                if(file.type.match("^image/svg\\+xml")){ // this is an SVG file
+                    var tempElem = document.createElement("div");
+                    tempElem.innerHTML = evt2.currentTarget.result;
+                    domElem = tempElem.children[0];
+
+                    NJUtils.makeElementModel(domElem, "SVG", "block");
+                } else { // treat as a regular image
+                    domElem = NJUtils.makeNJElement("image", "Image", "block");
+                    domElem.src = evt2.currentTarget.result;
+                }
+
+
+                // Not sure we need an ID for the image
+                                /*
+                // Use the Image filename if valid for the id
+                var filename = file.fileName.substr(0, file.fileName.lastIndexOf('.')) || file.fileName;
+                filename = filename.replace(/ /g,"_");
+
+
+                if(this.isValidFilename(filename)) {
+                    //domElem.id = filename;
+                } else {
+                    //domElem.id = DocumentControllerModule.DocumentController.CreateElementID(img.tagName);
+                }
+                */
+
+                var rules = {
+                    'position': 'absolute',
+                    'top' : baseY + 'px',
+                    'left' : baseX + 'px',
+                    '-webkit-transform-style' : 'preserve-3d',
+                    '-webkit-transform' : 'perspective(1400) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)'
+                };
+
+                NJevent("elementAdding", {el: domElem, data:rules});
+            };
+        }
+    },
+
+    isValidFilename: {
+        value: function(id){
+            if(id && id !== "") {
+                var regexID = /^([a-zA-Z])+([a-zA-Z0-9_\.\:\-])+/;
+                return(regexID.test(id))
+            } else {
+                return false;
+            }
+        }
+    }
+
+
+});
-- 
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