Add backload for multiple file upload

2016-01-27 11:06:47 -05:00
parent 2c73fb6883
commit 37a7a24436
261 changed files with 28994 additions and 96 deletions
@@ -0,0 +1,166 @@
+/*
+ * JavaScript Load Image Orientation 1.1.0
+ * https://github.com/blueimp/JavaScript-Load-Image
+ *
+ * Copyright 2013, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/MIT
+ */
+
+/*global define, window */
+
+(function (factory) {
+    'use strict';
+    if (typeof define === 'function' && define.amd) {
+        // Register as an anonymous AMD module:
+        define(['load-image'], factory);
+    } else {
+        // Browser globals:
+        factory(window.loadImage);
+    }
+}(function (loadImage) {
+    'use strict';
+
+    var originalHasCanvasOption = loadImage.hasCanvasOption,
+        originalTransformCoordinates = loadImage.transformCoordinates,
+        originalGetTransformedOptions = loadImage.getTransformedOptions;
+
+    // This method is used to determine if the target image
+    // should be a canvas element:
+    loadImage.hasCanvasOption = function (options) {
+        return originalHasCanvasOption.call(loadImage, options) ||
+            options.orientation;
+    };
+
+    // Transform image orientation based on
+    // the given EXIF orientation option:
+    loadImage.transformCoordinates = function (canvas, options) {
+        originalTransformCoordinates.call(loadImage, canvas, options);
+        var ctx = canvas.getContext('2d'),
+            width = canvas.width,
+            height = canvas.height,
+            orientation = options.orientation;
+        if (!orientation || orientation > 8) {
+            return;
+        }
+        if (orientation > 4) {
+            canvas.width = height;
+            canvas.height = width;
+        }
+        switch (orientation) {
+        case 2:
+            // horizontal flip
+            ctx.translate(width, 0);
+            ctx.scale(-1, 1);
+            break;
+        case 3:
+            // 180° rotate left
+            ctx.translate(width, height);
+            ctx.rotate(Math.PI);
+            break;
+        case 4:
+            // vertical flip
+            ctx.translate(0, height);
+            ctx.scale(1, -1);
+            break;
+        case 5:
+            // vertical flip + 90 rotate right
+            ctx.rotate(0.5 * Math.PI);
+            ctx.scale(1, -1);
+            break;
+        case 6:
+            // 90° rotate right
+            ctx.rotate(0.5 * Math.PI);
+            ctx.translate(0, -height);
+            break;
+        case 7:
+            // horizontal flip + 90 rotate right
+            ctx.rotate(0.5 * Math.PI);
+            ctx.translate(width, -height);
+            ctx.scale(-1, 1);
+            break;
+        case 8:
+            // 90° rotate left
+            ctx.rotate(-0.5 * Math.PI);
+            ctx.translate(-width, 0);
+            break;
+        }
+    };
+
+    // Transforms coordinate and dimension options
+    // based on the given orientation option:
+    loadImage.getTransformedOptions = function (img, opts) {
+        var options = originalGetTransformedOptions.call(loadImage, img, opts),
+            orientation = options.orientation,
+            newOptions,
+            i;
+        if (!orientation || orientation > 8 || orientation === 1) {
+            return options;
+        }
+        newOptions = {};
+        for (i in options) {
+            if (options.hasOwnProperty(i)) {
+                newOptions[i] = options[i];
+            }
+        }
+        switch (options.orientation) {
+        case 2:
+            // horizontal flip
+            newOptions.left = options.right;
+            newOptions.right = options.left;
+            break;
+        case 3:
+            // 180° rotate left
+            newOptions.left = options.right;
+            newOptions.top = options.bottom;
+            newOptions.right = options.left;
+            newOptions.bottom = options.top;
+            break;
+        case 4:
+            // vertical flip
+            newOptions.top = options.bottom;
+            newOptions.bottom = options.top;
+            break;
+        case 5:
+            // vertical flip + 90 rotate right
+            newOptions.left = options.top;
+            newOptions.top = options.left;
+            newOptions.right = options.bottom;
+            newOptions.bottom = options.right;
+            break;
+        case 6:
+            // 90° rotate right
+            newOptions.left = options.top;
+            newOptions.top = options.right;
+            newOptions.right = options.bottom;
+            newOptions.bottom = options.left;
+            break;
+        case 7:
+            // horizontal flip + 90 rotate right
+            newOptions.left = options.bottom;
+            newOptions.top = options.right;
+            newOptions.right = options.top;
+            newOptions.bottom = options.left;
+            break;
+        case 8:
+            // 90° rotate left
+            newOptions.left = options.bottom;
+            newOptions.top = options.left;
+            newOptions.right = options.top;
+            newOptions.bottom = options.right;
+            break;
+        }
+        if (options.orientation > 4) {
+            newOptions.maxWidth = options.maxHeight;
+            newOptions.maxHeight = options.maxWidth;
+            newOptions.minWidth = options.minHeight;
+            newOptions.minHeight = options.minWidth;
+            newOptions.sourceWidth = options.sourceHeight;
+            newOptions.sourceHeight = options.sourceWidth;
+        }
+        return newOptions;
+    };
+
+}));